Merged feature branch mocca-1.2.13-id@r724 back to trunk.

git-svn-id: https://joinup.ec.europa.eu/svn/mocca/trunk@725 8a26b1a7-26f0-462f-b9ef-d0e30c41f5a4

33 files changed, 3398 insertions, 2009 deletions

diff --git a/BKUCommonGUI/pom.xml b/BKUCommonGUI/pom.xml
index e426f7fe..ccb47235 100644
--- a/BKUCommonGUI/pom.xml
+++ b/BKUCommonGUI/pom.xml
@@ -1,33 +1,26 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
     <parent>
-        <artifactId>bku</artifactId>
+        <artifactId>mocca</artifactId>
         <groupId>at.gv.egiz</groupId>
-        <version>1.2.14-SNAPSHOT</version>
+        <version>1.3.0-SNAPSHOT</version>
     </parent>
     <modelVersion>4.0.0</modelVersion>
     <groupId>at.gv.egiz</groupId>
     <artifactId>BKUCommonGUI</artifactId>
     <name>BKU GUI</name>
-    <version>1.2.14-SNAPSHOT</version>
+    <version>${project.parent.version}</version>
     <dependencies>
         <dependency>
             <groupId>at.gv.egiz</groupId>
             <artifactId>smcc</artifactId>
-            <version>1.2.14-SNAPSHOT</version>
+            <version>${project.parent.version}</version>
         </dependency>
         <dependency>
             <groupId>at.gv.egiz</groupId>
             <artifactId>STAL</artifactId>
-            <version>1.2.14-SNAPSHOT</version>
+            <version>${project.parent.version}</version>
             <scope>compile</scope>
         </dependency>
-        <!-- see BKUFonts.pom
-        <dependency>
-          <groupId>at.gv.egiz</groupId>
-          <artifactId>BKUFonts</artifactId>
-          <version>1.0</version>
-          <scope>runtime</scope>
-        </dependency-->
     </dependencies>
 	  <build>
 	    <plugins>
diff --git a/BKUCommonGUI/src/main/java/META-INF/MANIFEST.MF b/BKUCommonGUI/src/main/java/META-INF/MANIFEST.MF
deleted file mode 100644
index 5e949512..00000000
--- a/BKUCommonGUI/src/main/java/META-INF/MANIFEST.MF
+++ /dev/null
@@ -1,3 +0,0 @@
-Manifest-Version: 1.0

-Class-Path: 

-

diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/AbstractHelpListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/AbstractHelpListener.java
deleted file mode 100644
index 6fd1ffea..00000000
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/AbstractHelpListener.java
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- * Copyright 2008 Federal Chancellery Austria and
- * Graz University of Technology
- * 
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package at.gv.egiz.bku.gui;
-
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.util.Locale;
-import java.util.ResourceBundle;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-/**
- * Implement the showDocument(URL) method to provide an actual HelpListener.
- * This class does not keep a GUI reference and subclasses should not interfere with the GUI.
- * Therefore, any errors occurring in showDocument() should be handled/displayed within
- * showDocument() and exceptions thrown from showDocument() are logged, not displayed in the GUI.
- * <br/>
- * The help URL is build as [baseURL]/[locale]/[helpTopic].html
- * (note that no session information is contained).
- * 
- * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at>
- */
-public abstract class AbstractHelpListener implements ActionListener {
-
-  /**
-   * any locale not in the list will be mapped to 'de'
-   */
-  public static final String[] SUPPORTED_LANGUAGES = new String[] { "de" };
-  
-  protected final static Log log = LogFactory.getLog(AbstractHelpListener.class);
-  protected URL baseURL;
-  protected Locale locale;
-  protected ResourceBundle messages;
-
-  public AbstractHelpListener(URL baseURL, Locale locale) {
-    if (baseURL == null || "".equals(baseURL.toString())) {
-      throw new RuntimeException("no help URL provided");
-    }
-    this.baseURL = baseURL;
-    this.locale = locale;
-    if (locale != null) {
-      messages = ResourceBundle.getBundle(BKUGUIFacade.MESSAGES_BUNDLE, locale);
-    } else {
-      messages = ResourceBundle.getBundle(BKUGUIFacade.MESSAGES_BUNDLE);
-    }
-  }
-
-  @Override
-  public void actionPerformed(ActionEvent e) {
-    log.debug("received help action: " + e.getActionCommand());
-    URL helpURL = constructHelpURL(baseURL, e.getActionCommand());
-    try {
-      showDocument(helpURL, e.getActionCommand());
-    } catch (Exception ex) {
-      log.error("could not display help document " + helpURL + ": " + ex.getMessage());
-    }
-  }
-
-  private URL constructHelpURL(URL baseURL, String helpTopic) {
-    URL helpURL = baseURL;
-    log.trace("constructing help URL: " + helpURL);
-    try {
-      // not localized for now
-      //check if locale.getLanguage() supported and add default if not
-//      if (locale != null) {
-//        helpURL = new URL(helpURL, locale.toString() + "/");
-//        log.trace("constructing help URL: " + helpURL);
-//      }
-      if (helpTopic != null && !"".equals(helpTopic)) {
-        helpURL = new URL(helpURL, "de/" + helpTopic + ".html");
-        log.trace("constructing help URL: " + helpURL);
-      }
-    } catch (MalformedURLException ex) {
-      log.error("Failed to construct help URL for help item " + helpTopic + ": " + ex.getMessage());
-    }
-    return helpURL;
-  }
-
-  /**
-   * Errors from HelpListeners should not (are not) displayed in the applet, 
-   * but should rather be in the HelpListener specific way.
-   * Therefore, implementations SHOULD NOT throw exceptions (these are only logged).
-   * @param helpDocument
-   * @throws java.lang.Exception
-   */
-  public abstract void showDocument(URL helpDocument, String helpTopic) throws Exception;
-}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIFacade.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIFacade.java
index 1e23c64c..b7ab156f 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIFacade.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIFacade.java
@@ -17,7 +17,7 @@
 package at.gv.egiz.bku.gui;
 
   import at.gv.egiz.stal.HashDataInput;
-import at.gv.egiz.smcc.PINSpec;
+import at.gv.egiz.smcc.PinInfo;
 import java.awt.Color;
 import java.awt.event.ActionListener;
 import java.util.List;
@@ -46,10 +46,14 @@ public interface BKUGUIFacade {
   public static final String DEFAULT_BACKGROUND = "/at/gv/egiz/bku/gui/chip32.png";
   public static final String DEFAULT_ICON = "/at/gv/egiz/bku/gui/chiperling105.png";
   public static final String HELP_IMG = "/at/gv/egiz/bku/gui/help.png";
+  public static final String HELP_IMG_L = "/at/gv/egiz/bku/gui/help_l.png";
+  public static final String HELP_IMG_XL = "/at/gv/egiz/bku/gui/help_xl.png";
+  public static final String HELP_IMG_XXL = "/at/gv/egiz/bku/gui/help_xxl.png";
   public static final String HELP_IMG_FOCUS = "/at/gv/egiz/bku/gui/help.png"; //help_focus.png";
   public static final String HASHDATA_FONT = "Monospaced";
   public static final Color ERROR_COLOR = Color.RED;
   public static final Color HYPERLINK_COLOR = Color.BLUE;
+  public static final Color HELP_COLOR = new Color(70, 148, 169);
   public static final String TITLE_WELCOME = "title.welcome";
   public static final String TITLE_INSERTCARD = "title.insertcard";
   public static final String TITLE_CARD_NOT_SUPPORTED = "title.cardnotsupported";
@@ -114,11 +118,17 @@ public interface BKUGUIFacade {
   public static final String SAVE_HASHDATAINPUT_PREFIX = "save.hashdatainput.prefix";
   public static final String ALT_HELP = "alt.help";
 
-  public void showEnterPINDirect(PINSpec spec, int retries);
+  public static final String SIGDATA_TOOLTIPTEXT = "dialog.sigpin.infolabel.sigdata.tooltiptext";
+  public static final String SWITCH_FOCUS_DUMMY_LABEL_NAME = "DummyLabel";
+  
+  public enum DIALOG_TYPE {DIALOGUE_UNDEFINED, DIALOGUE_VERIFY_PIN, DIALOGUE_ENTER_PIN, DIALOGUE_SHOW_SIG_DATA, DIALOGUE_SIGNATURE_PIN, DIALOGUE_MESSAGE};
+  
+  
+  public void showEnterPINDirect(PinInfo pinInfo, int retries);
 
-  public void showEnterPIN(PINSpec spec, int retries);
+  public void showEnterPIN(PinInfo pinInfo, int retries);
 
-  public void showSignatureDataDialog(PINSpec spec, ActionListener listener, String string, ActionListener aThis0, String string0, ActionListener aThis1, String string1);
+  public void showSignatureDataDialog(PinInfo pinInfo, ActionListener listener, String string, ActionListener aThis0, String string0, ActionListener aThis1, String string1);
 
   public void correctionButtonPressed();
 
@@ -134,11 +144,11 @@ public interface BKUGUIFacade {
    */
   public Locale getLocale();
 
-  public void showVerifyPINDialog(PINSpec pinSpec, int numRetries,
+  public void showVerifyPINDialog(PinInfo pinSpec, int numRetries,
           ActionListener okListener, String okCommand,
           ActionListener cancelListener, String cancelCommand);
 
-  public void showSignaturePINDialog(PINSpec pinSpec, int numRetries,
+  public void showSignaturePINDialog(PinInfo pinSpec, int numRetries,
           ActionListener signListener, String signCommand,
           ActionListener cancelListener, String cancelCommand,
           ActionListener viewerListener, String viewerCommand);
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIImpl.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIImpl.java
index e005836c..d806c5fa 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIImpl.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUGUIImpl.java
@@ -20,15 +20,19 @@ package at.gv.egiz.bku.gui;
 import at.gv.egiz.bku.gui.viewer.FontProviderException;
 import at.gv.egiz.bku.gui.viewer.FontProvider;
 import at.gv.egiz.bku.gui.viewer.SecureViewerSaveDialog;
-import at.gv.egiz.smcc.PINSpec;
+import at.gv.egiz.smcc.PinInfo;
 import at.gv.egiz.stal.HashDataInput;
 import java.awt.Color;
+import java.awt.Component;
 import java.awt.Container;
 import java.awt.Cursor;
+import java.awt.FocusTraversalPolicy;
 import java.awt.Font;
 import java.awt.Window;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
+import java.awt.event.ComponentAdapter;
+import java.awt.event.ComponentEvent;
 import java.awt.event.FocusAdapter;
 import java.awt.event.FocusEvent;
 import java.awt.event.KeyAdapter;
@@ -36,16 +40,19 @@ import java.awt.event.KeyEvent;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseMotionAdapter;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
 import java.net.URL;
 import java.text.MessageFormat;
 import java.util.List;
 import java.util.Locale;
 import java.util.ResourceBundle;
-import java.util.logging.Level;
-import java.util.logging.Logger;
+
+import javax.swing.BorderFactory;
 import javax.swing.GroupLayout;
 import javax.swing.ImageIcon;
 import javax.swing.JButton;
+import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.JPasswordField;
@@ -59,1607 +66,2730 @@ import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
 import javax.swing.text.BadLocationException;
 import javax.swing.text.Document;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
- *
+ * 
  * @author clemens
  */
 public class BKUGUIImpl implements BKUGUIFacade {
-    
-    protected static final Log log = LogFactory.getLog(BKUGUIImpl.class);
 
-    protected enum PinLabelPosition {
-      LEFT, ABOVE
-    }
+	private final Logger log = LoggerFactory.getLogger(BKUGUIImpl.class);
 
-    protected HelpMouseListener helpMouseListener;
-    protected HelpKeyListener helpKeyListener;
-    protected SwitchFocusFocusListener switchFocusKeyListener;
-    protected SecureViewerDialog secureViewer;
-    protected FontProvider fontProvider;
-    
-    protected Container contentPane;
-    protected ResourceBundle messages;
-    /** left and right side main panels */
-    protected JPanel iconPanel;
-    protected JPanel contentPanel;
-    /** right side content panels and layouts */
-    protected JPanel headerPanel;
-    protected JPanel mainPanel;
-    protected JPanel buttonPanel;
-    /** right side fixed labels  */
-    protected JLabel titleLabel;
-    protected JLabel helpLabel;
-    protected JLabel switchFocusDummyLabel; 
-    /** remember the pinfield to return to worker */
-    protected JPasswordField pinField;
-    protected Document pinpadPIN;
-
-    protected int buttonSize;
-    
-    /** gui style config (default 'simple') */
-    protected boolean renderHeaderPanel = false;
-    protected boolean renderIconPanel = false;
-    protected boolean renderCancelButton = false;
-    protected boolean shortText = false;
-    protected PinLabelPosition pinLabelPos = PinLabelPosition.LEFT;
-    protected boolean renderRefId = false;
-
-    /**
-     * set contentPane
-     * init message bundle
-     * configure the style 
-     * register the help listener
-     * create GUI (on event-dispatching thread)
-     * 
-     * @param contentPane
-     * @param locale
-     * @param guiStyle
-     * @param background
-     * @param helpListener
-     */
-    public BKUGUIImpl(Container contentPane, 
-            Locale locale, 
-            Style guiStyle,
-            URL background, 
-            FontProvider fontProvider,
-            ActionListener helpListener,
-            SwitchFocusListener switchFocusListener) {
-      this.contentPane = contentPane;
-
-      loadMessageBundle(locale);
-
-      if (guiStyle == Style.advanced) {
-        renderHeaderPanel = true;
-        renderIconPanel = false;
-        renderCancelButton = true;
-        renderRefId = true;
-      } else if (guiStyle == Style.tiny) {
-        shortText = true;
-        pinLabelPos = PinLabelPosition.ABOVE;
-      }
-
-      // ensure that buttons can be fired with enter key too
-      UIManager.put("Button.defaultButtonFollowsFocus", Boolean.TRUE);
-      
-      registerHelpListener(helpListener);
-      
-      registerSwitchFocusListener(switchFocusListener);
-
-      this.fontProvider = fontProvider;
-      createGUI(background);
-    }
-    
-    private void createGUI(final URL background) {
-
-        try {
-
-          log.debug("scheduling gui initialization");
-      
-            SwingUtilities.invokeLater(new Runnable() {
-
-                @Override
-                public void run() {
-                  
-                  log.debug("[" + Thread.currentThread().getName() + "] initializing gui");
-
-                  if (renderIconPanel) {
-                    initIconPanel(background);
-                    initContentPanel(null);
-                  } else {
-                    initContentPanel(background);
-                  }
-                  
-                  GroupLayout layout = new GroupLayout(contentPane);
-                  contentPane.setLayout(layout);
-                  
-                  if (renderIconPanel) {
-                    layout.setHorizontalGroup(layout.createSequentialGroup()
-                            .addContainerGap()
-                            .addComponent(iconPanel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                            .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
-                            .addComponent(contentPanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                            .addContainerGap());
-                    layout.setVerticalGroup(layout.createSequentialGroup()
-                            .addContainerGap()
-                            .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                              .addComponent(iconPanel, GroupLayout.Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-                              .addComponent(contentPanel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                            .addContainerGap());
-                  } else {
-                    layout.setHorizontalGroup(layout.createSequentialGroup()
-                            // left border
-                            .addContainerGap()
-                            .addComponent(contentPanel)
-                            .addContainerGap());
-                    layout.setVerticalGroup(layout.createSequentialGroup()
-                            .addContainerGap()
-                            .addComponent(contentPanel)
-                            .addContainerGap());
-                  }
-                }
-            });
-        } catch (Exception ex) {
-            throw new RuntimeException("Failed to init GUI: " + ex.getMessage());
-        }
-    }
-    
-    protected void initIconPanel(URL background) {
-      if (background == null) {
-        background = getClass().getResource(DEFAULT_ICON);
-      }
-      if ("file".equals(background.getProtocol())) {
-        log.warn("file:// background images not permitted: " + background +
-                ", loading default background");
-        background = getClass().getResource(DEFAULT_ICON);
-      }
-      log.debug("loading icon panel background " + background);
-      
-      iconPanel = new JPanel();
-      JLabel iconLabel = new JLabel();
-      iconLabel.setIcon(new ImageIcon(background));
-
-      GroupLayout iconPanelLayout = new GroupLayout(iconPanel);
-      iconPanel.setLayout(iconPanelLayout);
-      iconPanelLayout.setHorizontalGroup(
-        iconPanelLayout.createSequentialGroup()
-          .addComponent(iconLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE));
-      iconPanelLayout.setVerticalGroup(
-        iconPanelLayout.createSequentialGroup()
-          .addComponent(iconLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE));
-    }
+	protected enum PinLabelPosition {
+		LEFT, ABOVE
+	}
 
-    protected void initContentPanel(URL background) { 
-
-      if (background == null) {
-        log.debug("no background image set");
-//        contentPanel = new ImagePanel(getClass().getResource(DEFAULT_BACKGROUND));
-        contentPanel = new JPanel();
-      } else if ("file".equals(background.getProtocol())) {
-          log.warn("file:// background images not permitted: " + background);
-          contentPanel = new JPanel();
-      } else {
-        log.debug("loading background " + background);
-        contentPanel = new ImagePanel(background);
-      }
-      contentPanel.setOpaque(false);
-      mainPanel = new JPanel();
-      mainPanel.setOpaque(false);
-      buttonPanel = new JPanel(); 
-      buttonPanel.setOpaque(false);
-      
-      helpLabel = new JLabel();
-      helpLabel.setIcon(new ImageIcon(getClass().getResource(HELP_IMG))); 
-      helpLabel.getAccessibleContext().setAccessibleName(getMessage(ALT_HELP));
-      helpLabel.setFocusable(true);
-      helpLabel.addMouseListener(helpMouseListener);
-      helpLabel.addKeyListener(helpKeyListener);
-      helpLabel.addFocusListener(new FocusAdapter() {
-    	 
-    	  @Override
-    	  public void focusGained(FocusEvent e) {
-    		     		 
-    		  helpLabel.setIcon(new ImageIcon(getClass().getResource(HELP_IMG_FOCUS)));
-    	  }
-    	  
-    	  @Override
-    	  public void focusLost(FocusEvent e) {
-    		 
-    		  helpLabel.setIcon(new ImageIcon(getClass().getResource(HELP_IMG)));
-    	  }
-    	  
-    	  
-      });
-      helpLabel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
-      
-      switchFocusDummyLabel = new JLabel();
-      switchFocusDummyLabel.setText("");
-      switchFocusDummyLabel.setFocusable(true);
-      switchFocusDummyLabel.addFocusListener(switchFocusKeyListener);
-    
-      buttonSize = initButtonSize();
-        
-      if (renderHeaderPanel) {
-        headerPanel = new JPanel();
-        headerPanel.setOpaque(false);
-
-        titleLabel = new JLabel();
-        titleLabel.setFont(titleLabel.getFont().deriveFont(titleLabel.getFont().getStyle() |
-          java.awt.Font.BOLD, titleLabel.getFont().getSize() + 2));
-
-        GroupLayout headerPanelLayout = new GroupLayout(headerPanel);
-        headerPanel.setLayout(headerPanelLayout);
-
-        headerPanelLayout.setHorizontalGroup(
-          headerPanelLayout.createSequentialGroup()
-            .addComponent(titleLabel, 0, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
-            .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)
-            .addComponent(switchFocusDummyLabel)
-            .addComponent(helpLabel)
-            );
-        headerPanelLayout.setVerticalGroup(
-          headerPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-            .addComponent(titleLabel, 0, GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE)
-            .addComponent(switchFocusDummyLabel)
-            .addComponent(helpLabel)
-            );
-      }
-
-      GroupLayout contentPanelLayout = new GroupLayout(contentPanel);
-      contentPanel.setLayout(contentPanelLayout);
-
-      // align header, main and button to the right
-      GroupLayout.ParallelGroup horizontalContent =
-              contentPanelLayout.createParallelGroup(GroupLayout.Alignment.TRAILING); //LEADING);
-      GroupLayout.SequentialGroup verticalContent =
-              contentPanelLayout.createSequentialGroup();
-
-      if (renderHeaderPanel) {
-        horizontalContent
-                .addComponent(headerPanel, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE);
-        verticalContent
-                .addComponent(headerPanel, 0, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED);
-
-      }
-      horizontalContent
-              .addComponent(mainPanel, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-              .addComponent(buttonPanel, 0, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE); //Short.MAX_VALUE);
-      verticalContent
-              .addComponent(mainPanel, 0, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
-              .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
-              .addComponent(buttonPanel, 0, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-
-      contentPanelLayout.setHorizontalGroup(horizontalContent); //Outer);
-      contentPanelLayout.setVerticalGroup(verticalContent);
+	protected Component primaryFocusHolder;
+	protected SecureViewerDialog secureViewer;
+
+	protected HelpListener helpListener;
+	protected SwitchFocusFocusListener switchFocusKeyListener;
+	protected FontProvider fontProvider;
+
+	protected Container contentPane;
+  protected WindowCloseAdapter windowCloseAdapter;
+	protected ResourceBundle messages;
+	/** left and right side main panels */
+	protected JPanel iconPanel;
+	protected JPanel contentPanel;
+	/** right side content panels and layouts */
+	protected JPanel headerPanel;
+	protected JPanel mainPanel;
+	protected JPanel buttonPanel;
+	/** right side fixed labels */
+	protected JLabel titleLabel;
+	protected JLabel msgTitleLabel;
+	protected JLabel helpLabel;
+	protected JLabel switchFocusDummyLabel;
+	/** remember the pinfield to return to worker */
+	protected JPasswordField pinField;
+	protected Document pinpadPIN;
+
+	protected JButton okButton;
+	protected JButton backButton;
+	protected JButton enterPINButton;
+	protected final JButton cancelButton;
+	protected JLabel infoLabel;
+	protected final JLabel pinsizeLabel;
+	protected final JLabel signPinLabel;
+	protected final JButton signButton;
+	protected JLabel cardPinLabel;
+	protected JLabel pinLabel;
+	protected JPasswordField pinpadPINField;
+	protected JLabel msgLabel;
+	protected boolean showMessageOKButton;
+	protected JLabel refIdLabel;
+	protected JScrollPane hashDataScrollPane;
+	protected JTable hashDataTable;
+	protected HyperlinkRenderer hyperlinkRenderer;
+	protected int baseTableRowHeight;
+
+	protected FocusBorder sigDataFocusBorder;
+	protected FocusBorder helpFocusBorder;
+
+	protected Method methodToRunAtResize;
+
+	protected int buttonSize;
+	protected int baseButtonSize;
+	protected Integer baseWidth;
+	protected Integer baseHeight;
+	protected int baseFontSize;
+
+	/** gui style config (default 'simple') */
+	protected boolean renderHeaderPanel = false;
+	protected boolean renderIconPanel = false;
+	protected boolean renderCancelButton = false;
+	protected boolean shortText = false;
+	protected PinLabelPosition pinLabelPos = PinLabelPosition.LEFT;
+	protected boolean renderRefId = false;
+	protected boolean useFocusTraversalPolicy = false;
+	
+//	protected HashDataInput storedSelection;
+	protected List<HashDataInput> signedReferences;
+	protected Integer referenceIndex;
+	private at.gv.egiz.bku.gui.BKUGUIImpl.SignedReferencesSelectionListener.SignedReferencesListDisplayer storedBackToListListener;
+
+	/**
+	 * set contentPane init message bundle configure the style register the help
+	 * listener create GUI (on event-dispatching thread)
+	 * 
+	 * @param contentPane
+	 * @param locale
+	 * @param guiStyle
+	 * @param background
+	 * @param helpListener
+	 */
+	public BKUGUIImpl(Container contentPane, Locale locale, Style guiStyle,
+			URL background, FontProvider fontProvider,
+			HelpListener helpListener, SwitchFocusListener switchFocusListener) {
+		this.contentPane = contentPane;
+		Window w = SwingUtilities.getWindowAncestor(contentPane);
+    if (w != null && w instanceof JFrame) {
+        this.windowCloseAdapter = new WindowCloseAdapter();
+        ((JFrame) w).addWindowListener(windowCloseAdapter);
     }
+		
+		loadMessageBundle(locale);
+
+		cancelButton = new JButton();
+		infoLabel = new JLabel();
+		cardPinLabel = new JLabel();
+		pinsizeLabel = new JLabel();
+		signPinLabel = new JLabel();
+		signButton = new JButton();
+		pinLabel = new JLabel();
+		pinpadPINField = new JPasswordField();
+		msgLabel = new JLabel();
+		showMessageOKButton = false;
+
+		this.baseFontSize = new JLabel().getFont().getSize();
+		this.baseTableRowHeight = new JTable().getRowHeight();
+		
+		if (guiStyle == Style.advanced) {
+			renderHeaderPanel = true;
+			renderIconPanel = false;
+			renderCancelButton = true;
+			renderRefId = true;
+			useFocusTraversalPolicy = true;
+		} else if (guiStyle == Style.tiny) {
+			shortText = true;
+			pinLabelPos = PinLabelPosition.ABOVE;
+		}
+
+		// ensure that buttons can be fired with enter key too
+		UIManager.put("Button.defaultButtonFollowsFocus", Boolean.TRUE);
+
+		registerSwitchFocusListener(switchFocusListener);
+
+		this.fontProvider = fontProvider;
+		this.helpListener = helpListener;
+		createGUI(background);
 
-    /**
-     * BKUWorker inits signaturecard with locale
-     * @return
-     */
-    @Override
-    public Locale getLocale() {
-      return messages.getLocale();
-    }
+	}
 
-    /**
-     * to be overridden by subclasses providing additional resource messages
-     * @param key
-     * @return
-     */
-    protected String getMessage(String key) {
-      return messages.getString(key);
-    }
+	private void createGUI(final URL background) {
+
+		try {
+
+			log.debug("Scheduling gui initialization.");
+
+			SwingUtilities.invokeLater(new Runnable() {
+
+				@Override
+				public void run() {
+
+					log.debug("[{}] Initializing gui.", Thread.currentThread().getName());
+
+					if (renderIconPanel) {
+						initIconPanel(background);
+						initContentPanel(null);
+					} else {
+						initContentPanel(background);
+					}
+
+					contentPanel.addComponentListener(new ComponentAdapter() {
+
+						@Override
+						public void componentResized(ComponentEvent e) {
+
+							log.debug("Component resize detected.");
+
+							resize();
+						}
+
+					});
+
+					GroupLayout layout = new GroupLayout(contentPane);
+					contentPane.setLayout(layout);
+
+					if (renderIconPanel) {
+						layout
+								.setHorizontalGroup(layout
+										.createSequentialGroup()
+										.addContainerGap()
+										.addComponent(iconPanel,
+												GroupLayout.PREFERRED_SIZE,
+												GroupLayout.DEFAULT_SIZE,
+												GroupLayout.PREFERRED_SIZE)
+										.addPreferredGap(
+												LayoutStyle.ComponentPlacement.UNRELATED)
+										.addComponent(contentPanel,
+												GroupLayout.DEFAULT_SIZE,
+												GroupLayout.DEFAULT_SIZE,
+												Short.MAX_VALUE)
+										.addContainerGap());
+						layout
+								.setVerticalGroup(layout
+										.createSequentialGroup()
+										.addContainerGap()
+										.addGroup(
+												layout
+														.createParallelGroup(
+																GroupLayout.Alignment.LEADING)
+														.addComponent(
+																iconPanel,
+																GroupLayout.Alignment.TRAILING,
+																GroupLayout.DEFAULT_SIZE,
+																GroupLayout.DEFAULT_SIZE,
+																Short.MAX_VALUE)
+														.addComponent(
+																contentPanel,
+																GroupLayout.DEFAULT_SIZE,
+																GroupLayout.DEFAULT_SIZE,
+																Short.MAX_VALUE))
+										.addContainerGap());
+					} else {
+						layout.setHorizontalGroup(layout
+								.createSequentialGroup()
+								// left border
+								.addContainerGap().addComponent(contentPanel)
+								.addContainerGap());
+						layout.setVerticalGroup(layout.createSequentialGroup()
+								.addContainerGap().addComponent(contentPanel)
+								.addContainerGap());
+					}
+				}
+			});
+
+		} catch (Exception ex) {
+			throw new RuntimeException("Failed to init GUI: " + ex.getMessage());
+		}
+	}
 
-    /**
-     * to be overridden by subclasses providing additional resource messages
-     * @param key
-     * @return
-     */
-    protected boolean hasMessage(String key) {
-      return messages.containsKey(key);
-    }
+	protected void initIconPanel(URL background) {
+		if (background == null) {
+			background = getClass().getResource(DEFAULT_ICON);
+		}
+		if ("file".equals(background.getProtocol())) {
+            log.warn("file:// background images not permitted: {}, "
+                + "loading default background", background);
+			background = getClass().getResource(DEFAULT_ICON);
+		}
+		log.debug("Loading icon panel background {}.", background);
+
+		iconPanel = new JPanel();
+		JLabel iconLabel = new JLabel();
+		iconLabel.setIcon(new ImageIcon(background));
+
+		GroupLayout iconPanelLayout = new GroupLayout(iconPanel);
+		iconPanel.setLayout(iconPanelLayout);
+		iconPanelLayout.setHorizontalGroup(iconPanelLayout
+				.createSequentialGroup().addComponent(iconLabel,
+						GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE,
+						GroupLayout.PREFERRED_SIZE));
+		iconPanelLayout.setVerticalGroup(iconPanelLayout
+				.createSequentialGroup().addComponent(iconLabel,
+						GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE,
+						GroupLayout.PREFERRED_SIZE));
+	}
+
+	protected void initContentPanel(URL background) {
+
+		if (background == null) {
+			log.debug("No background image set.");
+			// contentPanel = new
+			// ImagePanel(getClass().getResource(DEFAULT_BACKGROUND));
+			contentPanel = new JPanel();
+		} else if ("file".equals(background.getProtocol())) {
+			log.warn("file:// background images not permitted: {}.", background);
+			contentPanel = new JPanel();
+		} else {
+			log.debug("Loading background {}.", background);
+			contentPanel = new ImagePanel(background);
+		}
+		contentPanel.setOpaque(false);
+		mainPanel = new JPanel();
+		mainPanel.setOpaque(false);
+		buttonPanel = new JPanel();
+		buttonPanel.setOpaque(false);
+
+		okButton = new JButton();
+		backButton = new JButton();
+		enterPINButton = new JButton();
+
+		sigDataFocusBorder = new FocusBorder(HYPERLINK_COLOR);
+		helpFocusBorder = new FocusBorder(HELP_COLOR);
+
+		if (helpListener.implementsListener()) {
+			helpLabel = new JLabel();
+			helpLabel.setIcon(new ImageIcon(getClass().getResource(HELP_IMG)));
+			helpLabel.getAccessibleContext().setAccessibleName(
+					getMessage(ALT_HELP));
+			helpLabel.setFocusable(true);
+			helpLabel.addMouseListener(helpListener);
+			helpLabel.addKeyListener(helpListener);
+			helpLabel.addFocusListener(new FocusAdapter() {
+
+				@Override
+				public void focusGained(FocusEvent e) {
+
+					log.debug("Help label obtained focus.");
+					updateHelpLabelIcon();
+				}
+
+				@Override
+				public void focusLost(FocusEvent e) {
+
+					updateHelpLabelIcon();
+				}
+
+			});
+			helpLabel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
+		}
+
+		// This is a hidden label. When it gains focus, it hands over focus to
+		// the web browser
+		switchFocusDummyLabel = new JLabel();
+		switchFocusDummyLabel.setText("");
+		switchFocusDummyLabel.setName(SWITCH_FOCUS_DUMMY_LABEL_NAME);
+		switchFocusDummyLabel.setFocusable(true);
+		switchFocusDummyLabel.addFocusListener(switchFocusKeyListener);
+
+		buttonSize = initButtonSize();
+		baseButtonSize = buttonSize;
+
+		titleLabel = new JLabel();
+		msgTitleLabel = new JLabel();
+
+		if (renderHeaderPanel) {
+			headerPanel = new JPanel();
+			headerPanel.setOpaque(false);
+
+			titleLabel.setFocusable(true);
+			titleLabel.setFont(titleLabel.getFont().deriveFont(
+					titleLabel.getFont().getStyle() | java.awt.Font.BOLD,
+					titleLabel.getFont().getSize() + 2));
+
+			GroupLayout headerPanelLayout = new GroupLayout(headerPanel);
+			headerPanel.setLayout(headerPanelLayout);
+
+			GroupLayout.SequentialGroup horizontalHeader = headerPanelLayout
+					.createSequentialGroup().addComponent(titleLabel, 0,
+							GroupLayout.PREFERRED_SIZE, Short.MAX_VALUE);
+
+			GroupLayout.ParallelGroup verticalHeader = headerPanelLayout
+					.createParallelGroup(GroupLayout.Alignment.LEADING)
+					.addComponent(titleLabel, 0, GroupLayout.PREFERRED_SIZE,
+							Short.MAX_VALUE);
+
+			if (helpListener.implementsListener()) {
+				horizontalHeader.addPreferredGap(
+						LayoutStyle.ComponentPlacement.UNRELATED, 0,
+						Short.MAX_VALUE).addComponent(helpLabel);
+				verticalHeader.addComponent(helpLabel);
+			}
+
+			horizontalHeader.addComponent(switchFocusDummyLabel);
+			verticalHeader.addComponent(switchFocusDummyLabel);
+
+			headerPanelLayout.setHorizontalGroup(horizontalHeader);
+			headerPanelLayout.setVerticalGroup(verticalHeader);
+		}
+
+		GroupLayout contentPanelLayout = new GroupLayout(contentPanel);
+		contentPanel.setLayout(contentPanelLayout);
+
+		// align header, main and button to the right
+		GroupLayout.ParallelGroup horizontalContent = contentPanelLayout
+				.createParallelGroup(GroupLayout.Alignment.TRAILING); // LEADING);
+		GroupLayout.SequentialGroup verticalContent = contentPanelLayout
+				.createSequentialGroup();
+
+		if (renderHeaderPanel) {
+			horizontalContent.addComponent(headerPanel, 0,
+					GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE);
+			verticalContent.addComponent(headerPanel, 0,
+					GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
+					.addPreferredGap(LayoutStyle.ComponentPlacement.RELATED);
+
+		}
+		horizontalContent.addComponent(mainPanel, 0, GroupLayout.DEFAULT_SIZE,
+				Short.MAX_VALUE).addComponent(buttonPanel, 0,
+				GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE); // Short.MAX_VALUE);
+		verticalContent.addComponent(mainPanel, 0, GroupLayout.DEFAULT_SIZE,
+				Short.MAX_VALUE).addPreferredGap(
+				LayoutStyle.ComponentPlacement.UNRELATED).addComponent(
+				buttonPanel, 0, GroupLayout.DEFAULT_SIZE,
+				GroupLayout.PREFERRED_SIZE);
+
+		contentPanelLayout.setHorizontalGroup(horizontalContent); // Outer);
+		contentPanelLayout.setVerticalGroup(verticalContent);
+
+	}
+
+	/**
+	 * BKUWorker inits signaturecard with locale
+	 * 
+	 * @return
+	 */
+	@Override
+	public Locale getLocale() {
+		return messages.getLocale();
+	}
+
+	/**
+	 * to be overridden by subclasses providing additional resource messages
+	 * 
+	 * @param key
+	 * @return
+	 */
+	protected String getMessage(String key) {
+		return messages.getString(key);
+	}
+
+	/**
+	 * to be overridden by subclasses providing additional resource messages
+	 * 
+	 * @param key
+	 * @return
+	 */
+	protected boolean hasMessage(String key) {
+		return messages.containsKey(key);
+	}
 
   @Override
-  public void showVerifyPINDialog(final PINSpec pinSpec, final int numRetries,
+  public void showVerifyPINDialog(final PinInfo pinSpec, final int numRetries,
           final ActionListener okListener, final String okCommand,
           final ActionListener cancelListener, final String cancelCommand) {
-        
-      log.debug("scheduling verify pin dialog");
-      
-      SwingUtilities.invokeLater(new Runnable() {
-
-            @Override
-            public void run() {
-
-              log.debug("[" + Thread.currentThread().getName() + "] show verify pin dialog");
-      
-                mainPanel.removeAll();
-                buttonPanel.removeAll();
-
-                if (renderHeaderPanel) {
-                  if (numRetries < 0) {
-                      String verifyTitle = getMessage(TITLE_VERIFY_PIN);
-                      titleLabel.setText(MessageFormat.format(verifyTitle, new Object[]{pinSpec.getLocalizedName()}));
-                  } else {
-                      titleLabel.setText(getMessage(TITLE_RETRY));
-                  }
-                }
-
-                JButton okButton = new JButton();
-                okButton.setFont(okButton.getFont().deriveFont(okButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-                okButton.setText(getMessage(BUTTON_OK));
-                okButton.setEnabled(pinSpec.getMinLength() <= 0);
-                okButton.setActionCommand(okCommand);
-                okButton.addActionListener(okListener);
-
-                JLabel cardPinLabel = new JLabel();
-                cardPinLabel.setFont(cardPinLabel.getFont().deriveFont(cardPinLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-                String pinLabel = getMessage(LABEL_PIN);
-                cardPinLabel.setText(MessageFormat.format(pinLabel, new Object[]{pinSpec.getLocalizedName()}));
-
-                pinField = new JPasswordField();
-                pinField.setText("");
-                pinField.setDocument(new PINDocument(pinSpec.getMinLength(), pinSpec.getMaxLength(), pinSpec.getRexepPattern(), okButton));
-                pinField.setActionCommand(okCommand);
-                pinField.addActionListener(new ActionListener() {
-
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        if (pinField.getPassword().length >= pinSpec.getMinLength()) {
-                            okListener.actionPerformed(e);
-                        }
-                    }
-                });
-
-                JLabel infoLabel = new JLabel();
-                if (numRetries < 0) {
-                  infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-                  String infoPattern = getMessage(MESSAGE_ENTERPIN);
-                  if (shortText) {
-                    infoLabel.setText(MessageFormat.format(infoPattern, new Object[] {"PIN"}));
-                  } else {
-                    infoLabel.setText(MessageFormat.format(infoPattern, new Object[] {pinSpec.getLocalizedName()}));
-                  }
-                  helpMouseListener.setHelpTopic(HELP_VERIFY_PIN);
-                  helpKeyListener.setHelpTopic(HELP_VERIFY_PIN);
-                } else {
-                  String retryPattern;
-                  if (numRetries < 2) {
-                    retryPattern = getMessage(MESSAGE_LAST_RETRY);
-                  } else {
-                    retryPattern = getMessage(MESSAGE_RETRIES);
-                  }
-                  infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() | java.awt.Font.BOLD));
-                  infoLabel.setText(MessageFormat.format(retryPattern, new Object[]{String.valueOf(numRetries)}));
-                  infoLabel.setForeground(ERROR_COLOR);
-                  helpMouseListener.setHelpTopic(HELP_RETRY);
-                  helpKeyListener.setHelpTopic(HELP_RETRY);
-                }
-                
-                JLabel pinsizeLabel = new JLabel();
-                pinsizeLabel.setFont(pinsizeLabel.getFont().deriveFont(pinsizeLabel.getFont().getStyle() & ~java.awt.Font.BOLD, pinsizeLabel.getFont().getSize()-2));
-                pinsizeLabel.setText(MessageFormat.format(getMessage(LABEL_PINSIZE), pinSpec.getLocalizedLength()));
-                
-                GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
-                mainPanel.setLayout(mainPanelLayout);
-
-                GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout.createSequentialGroup()
-                          .addComponent(infoLabel);
-                GroupLayout.ParallelGroup infoVertical = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                          .addComponent(infoLabel);
-                
-                if (!renderHeaderPanel) {
-                  infoHorizontal
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)
-                          .addComponent(switchFocusDummyLabel)
-                          .addComponent(helpLabel)
-                          ;
-                  infoVertical
-                          .addComponent(switchFocusDummyLabel)
-                          .addComponent(helpLabel)
-                          ;
-                } 
-
-                // align pinfield and pinsize to the right
-                GroupLayout.ParallelGroup pinHorizontal = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.TRAILING);
-                GroupLayout.Group pinVertical;
-
-                if (pinLabelPos == PinLabelPosition.ABOVE) {
-                  pinHorizontal
-                          .addGroup(mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                            .addComponent(cardPinLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                            .addComponent(pinField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                          .addComponent(pinsizeLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-                  pinVertical = mainPanelLayout.createSequentialGroup()
-                          .addComponent(cardPinLabel)
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                          .addComponent(pinField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-                } else {
-                  pinHorizontal
-                          .addGroup(mainPanelLayout.createSequentialGroup()
-                            .addComponent(cardPinLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                            .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                            .addComponent(pinField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                          .addComponent(pinsizeLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-                  pinVertical = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
-                          .addComponent(cardPinLabel)
-                          .addComponent(pinField);
-                }
-
-                mainPanelLayout.setHorizontalGroup(
-                  mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                    .addGroup(infoHorizontal)
-                    .addGroup(pinHorizontal));
-
-                mainPanelLayout.setVerticalGroup(
-                  mainPanelLayout.createSequentialGroup()
-                    .addGroup(infoVertical)
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                    .addGroup(pinVertical)
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                    .addComponent(pinsizeLabel));
-
-
-                GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
-                buttonPanel.setLayout(buttonPanelLayout);
-
-                GroupLayout.SequentialGroup buttonHorizontal = buttonPanelLayout.createSequentialGroup()
-                        .addComponent(okButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE);
-                GroupLayout.Group buttonVertical;
-                
-                if (renderCancelButton) {
-                  JButton cancelButton = new JButton();
-                  cancelButton.setFont(cancelButton.getFont().deriveFont(cancelButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-                  cancelButton.setText(getMessage(BUTTON_CANCEL));
-                  cancelButton.setActionCommand(cancelCommand);
-                  cancelButton.addActionListener(cancelListener);
-
-                  buttonHorizontal
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                          .addComponent(cancelButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE);
-                  buttonVertical = buttonPanelLayout.createParallelGroup(GroupLayout.Alignment.BASELINE) 
-                          .addComponent(okButton)
-                          .addComponent(cancelButton); 
-                } else {
-                  buttonVertical = buttonPanelLayout.createSequentialGroup()
-                          .addComponent(okButton);
-                }
-                
-                buttonPanelLayout.setHorizontalGroup(buttonHorizontal);
-                buttonPanelLayout.setVerticalGroup(buttonVertical);
-
-//                pinField.requestFocusInWindow();
-//                helpLabel.requestFocus();
-                pinField.requestFocus();
-                contentPanel.validate();
-
-            }
-        });
-    }
 
-  @Override
-  public void showEnterPINDirect(PINSpec pinSpec, int retries) {
-    if (retries < 0) {
-      showMessageDialog(TITLE_VERIFY_PINPAD, MESSAGE_ENTERPIN_PINPAD_DIRECT, new Object[] {
-                  pinSpec.getLocalizedName(), pinSpec.getLocalizedLength() });
-    } else {
-      showMessageDialog(TITLE_RETRY, MESSAGE_RETRIES, new Object[]{String.valueOf(retries) });
-    }
-  }
+    log.debug("Scheduling verify pin dialog.");
+
+		SwingUtilities.invokeLater(new Runnable() {
+
+			@Override
+			public void run() {
+
+                log.debug("[{}] Show verify pin dialog.", Thread.currentThread()
+                    .getName());
+
+				mainPanel.removeAll();
+				buttonPanel.removeAll();
+
+				// avoid that dummy label gains focus during load
+				switchFocusDummyLabel.setFocusable(false);
+
+				if (renderHeaderPanel) {
+					if (numRetries < 0) {
+						String verifyTitle = getMessage(TITLE_VERIFY_PIN);
+						titleLabel.setText(MessageFormat.format(verifyTitle,
+								new Object[] { pinSpec.getLocalizedName() }));
+					} else {
+						titleLabel.setText(getMessage(TITLE_RETRY));
+					}
+				}
+
+				okButton.setFont(okButton.getFont().deriveFont(
+						okButton.getFont().getStyle() & ~java.awt.Font.BOLD));
+				okButton.setText(getMessage(BUTTON_OK));
+				okButton.setEnabled(pinSpec.getMinLength() <= 0);
+				okButton.setActionCommand(okCommand);
+				okButton.addActionListener(okListener);
+
+				cardPinLabel.setFont(cardPinLabel.getFont()
+						.deriveFont(
+								cardPinLabel.getFont().getStyle()
+										& ~java.awt.Font.BOLD));
+				String pinLabel = getMessage(LABEL_PIN);
+				cardPinLabel.setText(MessageFormat.format(pinLabel,
+						new Object[] { pinSpec.getLocalizedName() }));
+
+				pinField = new JPasswordField();
+				pinField.setText("");
+				pinField.setName("PINField");
+				pinField.setDocument(new PINDocument(pinSpec.getMinLength(),
+						pinSpec.getMaxLength(), pinSpec.getRexepPattern(),
+						okButton));
+				pinField.setActionCommand(okCommand);
+				pinField.addActionListener(new ActionListener() {
+
+					@Override
+					public void actionPerformed(ActionEvent e) {
+						if (pinField.getPassword().length >= pinSpec
+								.getMinLength()) {
+							okListener.actionPerformed(e);
+						}
+					}
+				});
+
+				pinField.addFocusListener(new FocusAdapter() {
+
+					@Override
+					public void focusGained(FocusEvent e) {
+
+						// focus has been set accordingly - re-enable dummy
+						// label
+						switchFocusDummyLabel.setFocusable(true);
+					}
+
+				});
+
+				infoLabel = new JLabel();
+				if (numRetries < 0) {
+					infoLabel.setFont(infoLabel.getFont().deriveFont(
+							infoLabel.getFont().getStyle()
+									& ~java.awt.Font.BOLD));
+					String infoPattern = getMessage(MESSAGE_ENTERPIN);
+					if (shortText) {
+						infoLabel.setText(MessageFormat.format(infoPattern,
+								new Object[] { "PIN" }));
+					} else {
+						infoLabel.setText(MessageFormat.format(infoPattern,
+								new Object[] { pinSpec.getLocalizedName() }));
+					}
+					helpListener.setHelpTopic(HELP_VERIFY_PIN);
+				} else {
+					String retryPattern;
+					if (numRetries < 2) {
+						retryPattern = getMessage(MESSAGE_LAST_RETRY);
+					} else {
+						retryPattern = getMessage(MESSAGE_RETRIES);
+					}
+					infoLabel.setFont(infoLabel.getFont()
+							.deriveFont(
+									infoLabel.getFont().getStyle()
+											| java.awt.Font.BOLD));
+					infoLabel.setText(MessageFormat.format(retryPattern,
+							new Object[] { String.valueOf(numRetries) }));
+					infoLabel.setForeground(ERROR_COLOR);
+					helpListener.setHelpTopic(HELP_RETRY);
+				}
+
+				pinsizeLabel.setFont(pinsizeLabel.getFont()
+						.deriveFont(
+								pinsizeLabel.getFont().getStyle()
+										& ~java.awt.Font.BOLD,
+								pinsizeLabel.getFont().getSize() - 2));
+				pinsizeLabel.setText(MessageFormat
+						.format(getMessage(LABEL_PINSIZE), pinSpec
+								.getLocalizedLength()));
+
+				pinField.getAccessibleContext().setAccessibleDescription(
+						cardPinLabel.getText() + pinsizeLabel.getText());
+
+				GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
+				mainPanel.setLayout(mainPanelLayout);
+
+				GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout
+						.createSequentialGroup().addComponent(infoLabel);
+				GroupLayout.ParallelGroup infoVertical = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addComponent(infoLabel);
+
+				if (!renderHeaderPanel) {
+
+					if (helpListener.implementsListener()) {
+						infoHorizontal.addPreferredGap(
+								LayoutStyle.ComponentPlacement.UNRELATED, 0,
+								Short.MAX_VALUE).addComponent(helpLabel);
+						infoVertical.addComponent(helpLabel);
+					}
+					infoHorizontal.addComponent(switchFocusDummyLabel);
+					infoVertical.addComponent(switchFocusDummyLabel);
+				}
+
+				// align pinfield and pinsize to the right
+				GroupLayout.ParallelGroup pinHorizontal = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.TRAILING);
+				GroupLayout.Group pinVertical;
+
+				if (pinLabelPos == PinLabelPosition.ABOVE) {
+					pinHorizontal.addGroup(
+							mainPanelLayout.createParallelGroup(
+									GroupLayout.Alignment.LEADING)
+									.addComponent(cardPinLabel,
+											GroupLayout.PREFERRED_SIZE,
+											GroupLayout.DEFAULT_SIZE,
+											GroupLayout.PREFERRED_SIZE)
+									.addComponent(pinField,
+											GroupLayout.PREFERRED_SIZE,
+											GroupLayout.DEFAULT_SIZE,
+											Short.MAX_VALUE)).addComponent(
+							pinsizeLabel, GroupLayout.PREFERRED_SIZE,
+							GroupLayout.DEFAULT_SIZE,
+							GroupLayout.PREFERRED_SIZE);
+					pinVertical = mainPanelLayout.createSequentialGroup()
+							.addComponent(cardPinLabel).addPreferredGap(
+									LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinField, GroupLayout.PREFERRED_SIZE,
+									GroupLayout.DEFAULT_SIZE,
+									GroupLayout.PREFERRED_SIZE);
+				} else {
+					pinHorizontal
+							.addGroup(
+									mainPanelLayout
+											.createSequentialGroup()
+											.addComponent(cardPinLabel,
+													GroupLayout.PREFERRED_SIZE,
+													GroupLayout.DEFAULT_SIZE,
+													GroupLayout.PREFERRED_SIZE)
+											.addPreferredGap(
+													LayoutStyle.ComponentPlacement.RELATED)
+											.addComponent(pinField,
+													GroupLayout.PREFERRED_SIZE,
+													GroupLayout.DEFAULT_SIZE,
+													Short.MAX_VALUE))
+							.addComponent(pinsizeLabel,
+									GroupLayout.PREFERRED_SIZE,
+									GroupLayout.DEFAULT_SIZE,
+									GroupLayout.PREFERRED_SIZE);
+					pinVertical = mainPanelLayout.createParallelGroup(
+							GroupLayout.Alignment.BASELINE).addComponent(
+							cardPinLabel).addComponent(pinField);
+				}
+
+				mainPanelLayout.setHorizontalGroup(mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addGroup(infoHorizontal).addGroup(pinHorizontal));
+
+				mainPanelLayout
+						.setVerticalGroup(mainPanelLayout
+								.createSequentialGroup().addGroup(infoVertical)
+								.addPreferredGap(
+										LayoutStyle.ComponentPlacement.RELATED)
+								.addGroup(pinVertical).addPreferredGap(
+										LayoutStyle.ComponentPlacement.RELATED)
+								.addComponent(pinsizeLabel));
+
+				if (renderCancelButton) {
+					cancelButton.setFont(cancelButton.getFont().deriveFont(
+							cancelButton.getFont().getStyle()
+									& ~java.awt.Font.BOLD));
+					cancelButton.setText(getMessage(BUTTON_CANCEL));
+					cancelButton.setActionCommand(cancelCommand);
+					cancelButton.addActionListener(cancelListener);
+				}
+
+				renderVerifyPINDialogueButtonPanel();
+
+				updateMethodToRunAtResize("at.gv.egiz.bku.gui.BKUGUIImpl",
+						"renderVerifyPINDialogueButtonPanel");
+
+        if (windowCloseAdapter != null) {
+          windowCloseAdapter.registerListener(cancelListener, cancelCommand);
+        }
 
-  @Override
-  public void showEnterPIN(final PINSpec pinSpec, final int retries) {
-    showEnterPIN(pinSpec, retries, TITLE_VERIFY_PINPAD, MESSAGE_ENTERPIN_PINPAD, null);
-  }
+				primaryFocusHolder = pinField;
+
+				pinField.requestFocus();
+				contentPanel.validate();
+
+				resize();
 
-  protected void showEnterPIN(final PINSpec pinSpec, final int retries, final String titleKey, final String messageKey, final Object[] messageParams) {
-    log.debug("scheduling pinpad dialog");
+			}
+		});
+	}
 
-    SwingUtilities.invokeLater(new Runnable() {
+	@SuppressWarnings("unchecked")
+	protected void updateMethodToRunAtResize(String className, String methodName) {
+
+		try {
+			Class<at.gv.egiz.bku.gui.BKUGUIImpl> thisClass = (Class<at.gv.egiz.bku.gui.BKUGUIImpl>) Class
+					.forName(className);
+			Method m = thisClass.getMethod(methodName);
+			methodToRunAtResize = m;
+		} catch (SecurityException e1) {
+			log.error("Unable to store rendering method.", e1);
+		} catch (NoSuchMethodException e1) {
+			log.error("Unable to store rendering method.", e1);
+		} catch (ClassNotFoundException e) {
+			log.error("Unable to store rendering method.", e);
+		}
 
-      @Override
-      public void run() {
+	}
 
-        log.debug("[" + Thread.currentThread().getName() + "] show pinpad dialog");
+	public void renderVerifyPINDialogueButtonPanel() {
 
-        mainPanel.removeAll();
-        buttonPanel.removeAll();
+		GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
+		buttonPanel.setLayout(buttonPanelLayout);
 
-        if (renderHeaderPanel) {
-          if (retries < 0) {
-              titleLabel.setText(getMessage(titleKey));
-          } else {
-              titleLabel.setText(getMessage(TITLE_RETRY));
-          }
-        }
+		GroupLayout.SequentialGroup buttonHorizontal = buttonPanelLayout
+				.createSequentialGroup().addComponent(okButton,
+						GroupLayout.PREFERRED_SIZE, buttonSize,
+						GroupLayout.PREFERRED_SIZE);
+		GroupLayout.Group buttonVertical;
 
-        final JLabel infoLabel = new JLabel();
-        if (retries < 0) {
-          infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-          infoLabel.setText(MessageFormat.format(getMessage(messageKey), messageParams));
-          helpMouseListener.setHelpTopic(HELP_PINPAD);
-          helpKeyListener.setHelpTopic(HELP_PINPAD);
-        } else {
-          String retryPattern;
-          if (retries == 1) {
-            retryPattern = getMessage(MESSAGE_LAST_RETRY);
-          } else {
-            retryPattern = getMessage(MESSAGE_RETRIES);
-          }
-          infoLabel.setText(MessageFormat.format(retryPattern, new Object[]{String.valueOf(retries)}));
-          infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() | java.awt.Font.BOLD));
-          infoLabel.setForeground(ERROR_COLOR);
-          helpMouseListener.setHelpTopic(HELP_RETRY);
-          helpKeyListener.setHelpTopic(HELP_RETRY);
-        }
+		if (renderCancelButton) {
 
-        JLabel pinLabel = new JLabel();
-        pinLabel.setFont(pinLabel.getFont().deriveFont(pinLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-        String pinName = getMessage(LABEL_PIN);
-        pinLabel.setText(MessageFormat.format(pinName, new Object[]{pinSpec.getLocalizedName()}));
-
-        JPasswordField pinpadPINField = new JPasswordField();
-        pinpadPINField.setText("");
-        pinpadPINField.setEnabled(false);
-        pinpadPIN = pinpadPINField.getDocument();
-
-        JLabel pinsizeLabel = new JLabel();
-        pinsizeLabel.setFont(pinsizeLabel.getFont().deriveFont(pinsizeLabel.getFont().getStyle() & ~java.awt.Font.BOLD, pinsizeLabel.getFont().getSize()-2));
-        pinsizeLabel.setText(MessageFormat.format(getMessage(LABEL_PINSIZE), pinSpec.getLocalizedLength()));
-
-        GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
-        mainPanel.setLayout(mainPanelLayout);
-
-        GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout.createSequentialGroup()
-                .addComponent(infoLabel);
-        GroupLayout.ParallelGroup infoVertical = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                .addComponent(infoLabel);
-
-        if (!renderHeaderPanel) {
-          infoHorizontal
-                  .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)
-                  .addComponent(switchFocusDummyLabel)
-                  .addComponent(helpLabel)
-                  ;
-          infoVertical
-                  .addComponent(switchFocusDummyLabel)
-                  .addComponent(helpLabel)
-                  ;
-        }
+			buttonHorizontal.addPreferredGap(
+					LayoutStyle.ComponentPlacement.RELATED).addComponent(
+					cancelButton, GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE);
+			buttonVertical = buttonPanelLayout.createParallelGroup(
+					GroupLayout.Alignment.BASELINE).addComponent(okButton)
+					.addComponent(cancelButton);
+		} else {
+			buttonVertical = buttonPanelLayout.createSequentialGroup()
+					.addComponent(okButton);
+		}
 
-        // align pinfield and pinsize to the right
-        GroupLayout.Group pinHorizontal = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.TRAILING);
-        GroupLayout.SequentialGroup pinVertical = mainPanelLayout.createSequentialGroup();
-
-        if (pinLabelPos == PinLabelPosition.ABOVE) {
-          pinHorizontal
-                  .addGroup(mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                    .addComponent(pinLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                    .addComponent(pinpadPINField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                  .addComponent(pinsizeLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-          pinVertical
-                  .addComponent(pinLabel)
-                  .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                  .addComponent(pinpadPINField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                  .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                  .addComponent(pinsizeLabel);
-        } else { // PinLabelPosition.LEFT
-          pinHorizontal
-                  .addGroup(mainPanelLayout.createSequentialGroup()
-                    .addComponent(pinLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                    .addComponent(pinpadPINField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                  .addComponent(pinsizeLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-          pinVertical
-                  .addGroup(mainPanelLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
-                    .addComponent(pinLabel)
-                    .addComponent(pinpadPINField))
-                  .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                  .addComponent(pinsizeLabel);
-        }
+		buttonPanelLayout.setHorizontalGroup(buttonHorizontal);
+		buttonPanelLayout.setVerticalGroup(buttonVertical);
+
+	}
+
+    @Override
+  public void showEnterPINDirect(PinInfo pinSpec, int retries) {
+		if (retries < 0) {
+			showMessageDialog(TITLE_VERIFY_PINPAD,
+					MESSAGE_ENTERPIN_PINPAD_DIRECT, new Object[] {
+							pinSpec.getLocalizedName(),
+							pinSpec.getLocalizedLength() });
+		} else {
+			showMessageDialog(TITLE_RETRY, MESSAGE_RETRIES,
+					new Object[] { String.valueOf(retries) });
+		}
+	}
+
+  @Override
+  public void showEnterPIN(final PinInfo pinSpec, final int retries) {
+		showEnterPIN(pinSpec, retries, TITLE_VERIFY_PINPAD,
+				MESSAGE_ENTERPIN_PINPAD, null);
+	}
+
+  protected void showEnterPIN(final PinInfo pinSpec, final int retries,
+      final String titleKey, final String messageKey,
+      final Object[] messageParams) {
+    log.debug("Scheduling pinpad dialog.");
+
+		SwingUtilities.invokeLater(new Runnable() {
+
+			@Override
+			public void run() {
+
+				log.debug("[{}] show pinpad dialog.", Thread.currentThread().getName());
+
+				mainPanel.removeAll();
+				buttonPanel.removeAll();
+
+				// avoid that dummy label gains focus during load
+				switchFocusDummyLabel.setFocusable(false);
+
+				if (renderHeaderPanel) {
+					if (retries < 0) {
+						titleLabel.setText(getMessage(titleKey));
+					} else {
+						titleLabel.setText(getMessage(TITLE_RETRY));
+					}
+				}
+
+				infoLabel = new JLabel();
+				if (retries < 0) {
+					infoLabel.setFont(infoLabel.getFont().deriveFont(
+							infoLabel.getFont().getStyle()
+									& ~java.awt.Font.BOLD));
+					infoLabel.setText(MessageFormat.format(
+							getMessage(messageKey), messageParams));
+					helpListener.setHelpTopic(HELP_PINPAD);
+				} else {
+					String retryPattern;
+					if (retries == 1) {
+						retryPattern = getMessage(MESSAGE_LAST_RETRY);
+					} else {
+						retryPattern = getMessage(MESSAGE_RETRIES);
+					}
+					infoLabel.setText(MessageFormat.format(retryPattern,
+							new Object[] { String.valueOf(retries) }));
+					infoLabel.getAccessibleContext().setAccessibleName(
+							infoLabel.getText());
+					infoLabel.setFont(infoLabel.getFont()
+							.deriveFont(
+									infoLabel.getFont().getStyle()
+											| java.awt.Font.BOLD));
+					infoLabel.setForeground(ERROR_COLOR);
+					helpListener.setHelpTopic(HELP_RETRY);
+				}
+
+				pinLabel.setFont(pinLabel.getFont().deriveFont(
+						pinLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
+				String pinName = getMessage(LABEL_PIN);
+				pinLabel.setText(MessageFormat.format(pinName,
+						new Object[] { pinSpec.getLocalizedName() }));
+
+				pinpadPINField.setText("");
+				pinpadPINField.setEnabled(false);
+				pinpadPIN = pinpadPINField.getDocument();
+
+				pinsizeLabel.setFont(pinsizeLabel.getFont()
+						.deriveFont(
+								pinsizeLabel.getFont().getStyle()
+										& ~java.awt.Font.BOLD,
+								pinsizeLabel.getFont().getSize() - 2));
+				pinsizeLabel.setText(MessageFormat
+						.format(getMessage(LABEL_PINSIZE), pinSpec
+								.getLocalizedLength()));
+
+				GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
+				mainPanel.setLayout(mainPanelLayout);
+
+				GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout
+						.createSequentialGroup().addComponent(infoLabel);
+				GroupLayout.ParallelGroup infoVertical = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addComponent(infoLabel);
+
+				if (!renderHeaderPanel) {
+
+					if (helpListener.implementsListener()) {
+						infoHorizontal.addPreferredGap(
+								LayoutStyle.ComponentPlacement.UNRELATED, 0,
+								Short.MAX_VALUE).addComponent(helpLabel);
+						infoVertical.addComponent(helpLabel);
+					}
+					infoHorizontal.addComponent(switchFocusDummyLabel);
+					infoVertical.addComponent(switchFocusDummyLabel);
+
+				}
+
+				// align pinfield and pinsize to the right
+				GroupLayout.Group pinHorizontal = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.TRAILING);
+				GroupLayout.SequentialGroup pinVertical = mainPanelLayout
+						.createSequentialGroup();
+
+				if (pinLabelPos == PinLabelPosition.ABOVE) {
+					pinHorizontal.addGroup(
+							mainPanelLayout.createParallelGroup(
+									GroupLayout.Alignment.LEADING)
+									.addComponent(pinLabel,
+											GroupLayout.PREFERRED_SIZE,
+											GroupLayout.DEFAULT_SIZE,
+											GroupLayout.PREFERRED_SIZE)
+									.addComponent(pinpadPINField,
+											GroupLayout.PREFERRED_SIZE,
+											GroupLayout.DEFAULT_SIZE,
+											Short.MAX_VALUE)).addComponent(
+							pinsizeLabel, GroupLayout.PREFERRED_SIZE,
+							GroupLayout.DEFAULT_SIZE,
+							GroupLayout.PREFERRED_SIZE);
+					pinVertical.addComponent(pinLabel).addPreferredGap(
+							LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinpadPINField,
+									GroupLayout.PREFERRED_SIZE,
+									GroupLayout.DEFAULT_SIZE,
+									GroupLayout.PREFERRED_SIZE)
+							.addPreferredGap(
+									LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinsizeLabel);
+				} else { // PinLabelPosition.LEFT
+					pinHorizontal
+							.addGroup(
+									mainPanelLayout
+											.createSequentialGroup()
+											.addComponent(pinLabel,
+													GroupLayout.PREFERRED_SIZE,
+													GroupLayout.DEFAULT_SIZE,
+													GroupLayout.PREFERRED_SIZE)
+											.addPreferredGap(
+													LayoutStyle.ComponentPlacement.RELATED)
+											.addComponent(pinpadPINField,
+													GroupLayout.PREFERRED_SIZE,
+													GroupLayout.DEFAULT_SIZE,
+													Short.MAX_VALUE))
+							.addComponent(pinsizeLabel,
+									GroupLayout.PREFERRED_SIZE,
+									GroupLayout.DEFAULT_SIZE,
+									GroupLayout.PREFERRED_SIZE);
+					pinVertical.addGroup(
+							mainPanelLayout.createParallelGroup(
+									GroupLayout.Alignment.BASELINE)
+									.addComponent(pinLabel).addComponent(
+											pinpadPINField)).addPreferredGap(
+							LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinsizeLabel);
+				}
+
+				mainPanelLayout.setHorizontalGroup(mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addGroup(infoHorizontal).addGroup(pinHorizontal));
+
+				mainPanelLayout
+						.setVerticalGroup(mainPanelLayout
+								.createSequentialGroup().addGroup(infoVertical)
+								.addPreferredGap(
+										LayoutStyle.ComponentPlacement.RELATED)
+								.addGroup(pinVertical));
+
+				infoLabel.setFocusable(true);
+
+				infoLabel.addFocusListener(new FocusAdapter() {
+
+					@Override
+					public void focusGained(FocusEvent e) {
+
+						// focus has been set accordingly - re-enable dummy
+						// label
+						switchFocusDummyLabel.setFocusable(true);
+					}
+
+				});
+
+				String accessibleData = cutOffHTMLTags(infoLabel.getText())
+						+ cutOffHTMLTags(pinLabel.getText())
+						+ cutOffHTMLTags(pinsizeLabel.getText());
+
+				infoLabel.getAccessibleContext().setAccessibleName(
+						accessibleData);
+				infoLabel.getAccessibleContext().setAccessibleDescription(
+						accessibleData);
+
+				primaryFocusHolder = infoLabel;
+
+				// delete potentially stored method to be run as nothing has to
+				// be re-rendered
+				methodToRunAtResize = null;
+
+				infoLabel.requestFocus();
+
+				contentPanel.validate();
+
+				resize();
+			}
+		});
+	}
+
+	// simple utility method to retrieve plain text from HTML
+	protected String cutOffHTMLTags(String str) {
+
+		char[] arr = str.toCharArray();
+		StringBuffer result = new StringBuffer();
+		boolean inTag = false;
 
-        mainPanelLayout.setHorizontalGroup(
-          mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-            .addGroup(infoHorizontal)
-            .addGroup(pinHorizontal));
+		for (int i = 0; i < arr.length; i++) {
 
-        mainPanelLayout.setVerticalGroup(
-          mainPanelLayout.createSequentialGroup()
-            .addGroup(infoVertical)
-            .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-            .addGroup(pinVertical));
+			char c = arr[i];
 
-        contentPanel.validate();
-      }
-    });
-  }
+			if (c == '<') {
+				inTag = true;
+			}
+
+			if (!inTag) {
+
+				result.append(c);
+			}
+
+			if (c == '>') {
+
+				inTag = false;
+			}
+		}
+
+		return result.toString();
+	}
 
   @Override
-  public void showSignatureDataDialog(PINSpec spec,
+  public void showSignatureDataDialog(PinInfo spec,
           final ActionListener enterPINListener, final String enterPINCommand,
           final ActionListener cancelListener, final String cancelCommand,
           final ActionListener hashdataListener, final String hashdataCommand) {
 
-    log.debug("scheduling signature-data dialog");
+		log.debug("Scheduling signature-data dialog.");
 
-    SwingUtilities.invokeLater(new Runnable() {
+		SwingUtilities.invokeLater(new Runnable() {
 
-        @Override
-        public void run() {
+			@Override
+			public void run() {
 
-          log.debug("[" + Thread.currentThread().getName() + "] show signature-data dialog");
+				log.debug("[{}] show signature-data dialog.", 
+				    Thread.currentThread().getName());
 
-          mainPanel.removeAll();
-          buttonPanel.removeAll();
+				mainPanel.removeAll();
+				buttonPanel.removeAll();
 
-          if (renderHeaderPanel) {
-            titleLabel.setText(getMessage(TITLE_SIGNATURE_DATA));
-          }
+				// specify policy to ensure correct focus traversal
+				if (useFocusTraversalPolicy) {
 
-          final JLabel infoLabel = new JLabel();
-          infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-          if (shortText) {
-            infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY));
-          } else {
-            infoLabel.setText(getMessage(MESSAGE_HASHDATALINK));
-          }
-          infoLabel.setFocusable(true);
-          infoLabel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
-          infoLabel.setForeground(HYPERLINK_COLOR);
-          infoLabel.addMouseListener(new MouseAdapter() {
+					contentPanel.setFocusCycleRoot(true);
+					contentPanel
+							.setFocusTraversalPolicy(new AdvancedShowSigDataGUIFocusTraversalPolicy());
+				}
 
-              @Override
-              public void mouseClicked(MouseEvent me) {
-                  ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, hashdataCommand);
-                  hashdataListener.actionPerformed(e);
-              }
-          });
+				// avoid that dummy label gains focus during load
+				switchFocusDummyLabel.setFocusable(false);
 
-          infoLabel.addKeyListener(new KeyAdapter() {
+				if (renderHeaderPanel) {
+					titleLabel.setText(getMessage(TITLE_SIGNATURE_DATA));
+				}
 
-             @Override
-             public void keyPressed(KeyEvent e) {
+				infoLabel = new JLabel();
+				infoLabel.setFont(infoLabel.getFont().deriveFont(
+						infoLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
+				if (shortText) {
+					infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY));
+				} else {
+					infoLabel.setText(getMessage(MESSAGE_HASHDATALINK));
+				}
+				infoLabel.getAccessibleContext().setAccessibleName(
+						infoLabel.getText());
+				infoLabel.setFocusable(true);
 
-                 if(e.getKeyCode() == KeyEvent.VK_ENTER) {
-                     ActionEvent e1 = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, hashdataCommand);
-                      hashdataListener.actionPerformed(e1);
-                 }
-             }
+				infoLabel.setToolTipText(getMessage(SIGDATA_TOOLTIPTEXT));
+				infoLabel.getAccessibleContext().setAccessibleDescription(
+						getMessage(SIGDATA_TOOLTIPTEXT));
+				infoLabel.getAccessibleContext().setAccessibleName(
+						getMessage(SIGDATA_TOOLTIPTEXT));
 
-           });
+				infoLabel.setCursor(Cursor
+						.getPredefinedCursor(Cursor.HAND_CURSOR));
+				infoLabel.setForeground(HYPERLINK_COLOR);
+				infoLabel.addMouseListener(new MouseAdapter() {
 
-          infoLabel.addFocusListener(new FocusAdapter() {
+					@Override
+					public void mouseClicked(MouseEvent me) {
+						ActionEvent e = new ActionEvent(this,
+								ActionEvent.ACTION_PERFORMED, hashdataCommand);
+						hashdataListener.actionPerformed(e);
+					}
+				});
 
-              @Override
-              public void focusGained(FocusEvent e) {
+				infoLabel.addKeyListener(new KeyAdapter() {
 
-                  if (shortText) {
-                      infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY_FOCUS));
-                    } else {
-                      infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_FOCUS));
-                    }
-              }
+					@Override
+					public void keyPressed(KeyEvent e) {
 
-              @Override
-              public void focusLost(FocusEvent e) {
+						if (e.getKeyCode() == KeyEvent.VK_ENTER) {
+							ActionEvent e1 = new ActionEvent(this,
+									ActionEvent.ACTION_PERFORMED,
+									hashdataCommand);
+							hashdataListener.actionPerformed(e1);
+						}
+					}
 
-                  if (shortText) {
-                      infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY));
-                    } else {
-                      infoLabel.setText(getMessage(MESSAGE_HASHDATALINK));
-                    }
+				});
 
-              }
+				infoLabel.addFocusListener(new FocusAdapter() {
 
-          });
+					@Override
+					public void focusGained(FocusEvent e) {
 
-          helpMouseListener.setHelpTopic(HELP_SIGNPIN);
-          helpKeyListener.setHelpTopic(HELP_SIGNPIN);
+						infoLabel.setBorder(sigDataFocusBorder);
+					}
 
-          //TODO message panel
+					@Override
+					public void focusLost(FocusEvent e) {
 
-//              String msgPattern = getMessage(MESSAGE_ENTERPIN_PINPAD);
-//              String msg = MessageFormat.format(msgPattern, new Object[] {
-//                pinSpec.getLocalizedName(), pinSpec.getLocalizedLength() });
-//
-//              JLabel msgLabel = new JLabel();
-//              msgLabel.setFont(msgLabel.getFont().deriveFont(msgLabel.getFont().getStyle() & ~Font.BOLD));
-//              msgLabel.setText(msg);
-
-          GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
-          mainPanel.setLayout(mainPanelLayout);
-
-          GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout.createSequentialGroup()
-                  .addComponent(infoLabel);
-          GroupLayout.ParallelGroup infoVertical = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                  .addComponent(infoLabel);
-
-          if (!renderHeaderPanel) {
-            infoHorizontal
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)
-                    .addComponent(switchFocusDummyLabel)
-                    .addComponent(helpLabel)
-                    ;
-            infoVertical
-                    .addComponent(switchFocusDummyLabel)
-                    .addComponent(helpLabel)
-                    ;
-          }
-
-          mainPanelLayout.setHorizontalGroup(
-                  infoHorizontal);
-//              mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-//                .addGroup(infoHorizontal)
-//                .addComponent(msgLabel));
-
-          mainPanelLayout.setVerticalGroup(
-                  infoVertical);
-//              mainPanelLayout.createSequentialGroup()
-//                .addGroup(infoVertical)
-//                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-//                .addComponent(msgLabel));
-
-
-          GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
-          buttonPanel.setLayout(buttonPanelLayout);
-
-          GroupLayout.SequentialGroup buttonHorizontal = buttonPanelLayout.createSequentialGroup();
-          GroupLayout.Group buttonVertical;
-
-          JButton enterPINButton = new JButton();
-          enterPINButton.setFont(enterPINButton.getFont().deriveFont(enterPINButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-          enterPINButton.setText(getMessage(BUTTON_SIGN));
-          enterPINButton.setActionCommand(enterPINCommand);
-          enterPINButton.addActionListener(enterPINListener);
-
-          if (renderCancelButton) {
-            JButton cancelButton = new JButton();
-            cancelButton.setFont(cancelButton.getFont().deriveFont(cancelButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-            cancelButton.setText(getMessage(BUTTON_CANCEL));
-            cancelButton.setActionCommand(cancelCommand);
-            cancelButton.addActionListener(cancelListener);
-
-            buttonHorizontal
-                    .addComponent(enterPINButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE)
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                    .addComponent(cancelButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE)
-                    ;
-            buttonVertical = buttonPanelLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
-                    .addComponent(enterPINButton)
-                    .addComponent(cancelButton)
-                    ;
-          } else {
-            buttonHorizontal
-                    .addComponent(enterPINButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE)
-                    ;
-            buttonVertical = buttonPanelLayout.createSequentialGroup()
-                    .addComponent(enterPINButton)
-                    ;
-          }
-
-          buttonPanelLayout.setHorizontalGroup(buttonHorizontal);
-          buttonPanelLayout.setVerticalGroup(buttonVertical);
-
-          contentPanel.validate();
+						infoLabel.setBorder(BorderFactory.createEmptyBorder());
+					}
+
+				});
+
+				helpListener.setHelpTopic(HELP_SIGNPIN);
+
+				GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
+				mainPanel.setLayout(mainPanelLayout);
+
+				GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout
+						.createSequentialGroup().addComponent(infoLabel);
+				GroupLayout.ParallelGroup infoVertical = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addComponent(infoLabel);
+
+				if (!renderHeaderPanel) {
+
+					if (helpListener.implementsListener()) {
+						infoHorizontal.addPreferredGap(
+								LayoutStyle.ComponentPlacement.UNRELATED, 0,
+								Short.MAX_VALUE).addComponent(helpLabel);
+						infoVertical.addComponent(helpLabel);
+					}
+					infoHorizontal.addComponent(switchFocusDummyLabel);
+					infoVertical.addComponent(switchFocusDummyLabel);
+
+				}
+
+				mainPanelLayout.setHorizontalGroup(infoHorizontal);
+				mainPanelLayout.setVerticalGroup(infoVertical);
+
+				enterPINButton.setFont(enterPINButton.getFont().deriveFont(
+						enterPINButton.getFont().getStyle()
+								& ~java.awt.Font.BOLD));
+				enterPINButton.setText(getMessage(BUTTON_SIGN));
+				enterPINButton.setActionCommand(enterPINCommand);
+				enterPINButton.addActionListener(enterPINListener);
+
+				enterPINButton.addFocusListener(new FocusAdapter() {
+
+					@Override
+					public void focusGained(FocusEvent e) {
+
+						// focus has been set accordingly - re-enable dummy
+						// label
+						switchFocusDummyLabel.setFocusable(true);
+					}
+
+				});
+
+				if (renderCancelButton) {
+					cancelButton.setFont(cancelButton.getFont().deriveFont(
+							cancelButton.getFont().getStyle()
+									& ~java.awt.Font.BOLD));
+					cancelButton.setText(getMessage(BUTTON_CANCEL));
+					cancelButton.setActionCommand(cancelCommand);
+					cancelButton.addActionListener(cancelListener);
+				}
+
+				updateMethodToRunAtResize("at.gv.egiz.bku.gui.BKUGUIImpl",
+						"renderShowSignatureDataDialogButtonPanel");
+
+				renderShowSignatureDataDialogButtonPanel();
+
+        if (windowCloseAdapter != null) {
+          windowCloseAdapter.registerListener(cancelListener, cancelCommand);
         }
-    });
-  }
 
-  @Override
-  public void correctionButtonPressed() {
-    log.debug("[" + Thread.currentThread().getName() + "] correction button pressed");
-
-    if (pinpadPIN != null) {
-      try {
-        pinpadPIN.remove(0, 1);
-      } catch (BadLocationException ex) {
-      }
-    }
-  }
+				primaryFocusHolder = enterPINButton;
 
-  @Override
-  public void allKeysCleared() {
-    log.debug("[" + Thread.currentThread().getName() + "] all keys cleared");
-
-    if (pinpadPIN != null) {
-      try {
-        pinpadPIN.remove(0, pinpadPIN.getLength());
-      } catch (BadLocationException ex) {
-      }
-    }
-  }
+				enterPINButton.requestFocus();
 
-  @Override
-  public void validKeyPressed() {
-    log.debug("[" + Thread.currentThread().getName() + "] valid key pressed");
-
-    if (pinpadPIN != null) {
-      try {
-        pinpadPIN.insertString(0, "*", null);
-      } catch (BadLocationException ex) {
-      }
-    }
-  }
+				contentPanel.validate();
 
-    @Override
-    public void showSignaturePINDialog(final PINSpec pinSpec, final int numRetries,
+				resize();
+			}
+		});
+	}
+
+	public void renderShowSignatureDataDialogButtonPanel() {
+
+		GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
+		buttonPanel.setLayout(buttonPanelLayout);
+
+		GroupLayout.SequentialGroup buttonHorizontal = buttonPanelLayout
+				.createSequentialGroup();
+		GroupLayout.Group buttonVertical;
+
+		if (renderCancelButton) {
+
+			buttonHorizontal.addComponent(enterPINButton,
+					GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE).addPreferredGap(
+					LayoutStyle.ComponentPlacement.RELATED).addComponent(
+					cancelButton, GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE);
+			buttonVertical = buttonPanelLayout.createParallelGroup(
+					GroupLayout.Alignment.BASELINE)
+					.addComponent(enterPINButton).addComponent(cancelButton);
+		} else {
+			buttonHorizontal.addComponent(enterPINButton,
+					GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE);
+			buttonVertical = buttonPanelLayout.createSequentialGroup()
+					.addComponent(enterPINButton);
+		}
+
+		buttonPanelLayout.setHorizontalGroup(buttonHorizontal);
+		buttonPanelLayout.setVerticalGroup(buttonVertical);
+
+	}
+
+	@Override
+	public void correctionButtonPressed() {
+		log.debug("[{}] Correction button pressed.", Thread.currentThread().getName());
+
+		if (pinpadPIN != null) {
+			try {
+				pinpadPIN.remove(0, 1);
+			} catch (BadLocationException ex) {
+			}
+		}
+	}
+
+	@Override
+	public void allKeysCleared() {
+		log.debug("[{}] All keys cleared.", Thread.currentThread().getName());
+
+		if (pinpadPIN != null) {
+			try {
+				pinpadPIN.remove(0, pinpadPIN.getLength());
+			} catch (BadLocationException ex) {
+			}
+		}
+	}
+
+	@Override
+	public void validKeyPressed() {
+		log.debug("[{}] Valid key pressed.", Thread.currentThread().getName());
+
+		if (pinpadPIN != null) {
+			try {
+				pinpadPIN.insertString(0, "*", null);
+			} catch (BadLocationException ex) {
+			}
+		}
+	}
+
+  @Override
+  public void showSignaturePINDialog(final PinInfo pinSpec, final int numRetries,
             final ActionListener signListener, final String signCommand,
             final ActionListener cancelListener, final String cancelCommand,
             final ActionListener hashdataListener, final String hashdataCommand) {
 
-      log.debug("scheduling signature-pin dialog");
-      
-      SwingUtilities.invokeLater(new Runnable() {
-
-            @Override
-            public void run() {
-              
-              log.debug("[" + Thread.currentThread().getName() + "] show signature-pin dialog");
-      
-                mainPanel.removeAll();
-                buttonPanel.removeAll();
-                
-                if (renderHeaderPanel) {
-                  if (numRetries < 0) {
-                      titleLabel.setText(getMessage(TITLE_SIGN));
-                  } else {
-                      titleLabel.setText(getMessage(TITLE_RETRY));
-                  }
-                }
-
-                final JLabel infoLabel = new JLabel();
-                if (numRetries < 0) {
-                  infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-                  if (shortText) {
-                    infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY));
-                  } else {
-                    infoLabel.setText(getMessage(MESSAGE_HASHDATALINK));
-                  }
-                  infoLabel.setFocusable(true);
-                  infoLabel.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
-                  infoLabel.setForeground(HYPERLINK_COLOR);
-                  infoLabel.addMouseListener(new MouseAdapter() {
-
-                      @Override
-                      public void mouseClicked(MouseEvent me) {
-                          ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, hashdataCommand);
-                          hashdataListener.actionPerformed(e);
-                      }
-                  });
-                  
-                  infoLabel.addKeyListener(new KeyAdapter() {
-                	  
-                	 @Override
-                	 public void keyPressed(KeyEvent e) {
-                		 
-                		 if(e.getKeyCode() == KeyEvent.VK_ENTER) {                			 
-                			 ActionEvent e1 = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, hashdataCommand);
-                             hashdataListener.actionPerformed(e1);
-                		 }
-                	 }
-                	  
-                  });
-                  
-                  infoLabel.addFocusListener(new FocusAdapter() {
-                	  
-                	  @Override
-                	  public void focusGained(FocusEvent e) {
-                		  
-                		  
-                          if (shortText) {
-                              infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY_FOCUS));
-                            } else {
-                              infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_FOCUS));
-                            }
-                	  }
-                	  
-                	  @Override
-                	  public void focusLost(FocusEvent e) {
-                		  
-                		  
-                          if (shortText) {
-                              infoLabel.setText(getMessage(MESSAGE_HASHDATALINK_TINY));
-                            } else {
-                              infoLabel.setText(getMessage(MESSAGE_HASHDATALINK));
-                            }
-                		  
-                	  }                	  
-                	  
-                  });
-                  
-                  helpMouseListener.setHelpTopic(HELP_SIGNPIN);
-                  helpKeyListener.setHelpTopic(HELP_SIGNPIN);
-                } else {
-                  String retryPattern;
-                  if (numRetries < 2) {
-                    retryPattern = getMessage(MESSAGE_LAST_RETRY);
-                  } else {
-                    retryPattern = getMessage(MESSAGE_RETRIES);
-                  }
-                  infoLabel.setFocusable(true);
-                  infoLabel.setText(MessageFormat.format(retryPattern, new Object[]{String.valueOf(numRetries)}));
-                  infoLabel.setFont(infoLabel.getFont().deriveFont(infoLabel.getFont().getStyle() | java.awt.Font.BOLD));
-                  infoLabel.setForeground(ERROR_COLOR);
-                  helpMouseListener.setHelpTopic(HELP_RETRY);
-                  helpKeyListener.setHelpTopic(HELP_RETRY);
-                }
-
-                JButton signButton = new JButton();
-                signButton.setFont(signButton.getFont().deriveFont(signButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-                signButton.setText(getMessage(BUTTON_SIGN));
-                signButton.setEnabled(pinSpec.getMinLength() <= 0);
-                signButton.setActionCommand(signCommand);
-                signButton.addActionListener(signListener);
-
-                JLabel signPinLabel = new JLabel();
-                signPinLabel.setFont(signPinLabel.getFont().deriveFont(signPinLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-                String pinLabel = getMessage(LABEL_PIN);
-                signPinLabel.setText(MessageFormat.format(pinLabel, new Object[]{pinSpec.getLocalizedName()}));
-
-                pinField = new JPasswordField();
-                pinField.setText("");
-                pinField.setDocument(new PINDocument(pinSpec.getMinLength(), pinSpec.getMaxLength(), pinSpec.getRexepPattern(), signButton));
-                pinField.setActionCommand(signCommand);
-                pinField.addActionListener(new ActionListener() {
-
-                    @Override
-                    public void actionPerformed(ActionEvent e) {
-                        if (pinField.getPassword().length >= pinSpec.getMinLength()) {
-                            signListener.actionPerformed(e);
-                        }
-                    }
-                });
-
-                
-                JLabel pinsizeLabel = new JLabel();
-                pinsizeLabel.setFont(pinsizeLabel.getFont().deriveFont(pinsizeLabel.getFont().getStyle() & ~java.awt.Font.BOLD, pinsizeLabel.getFont().getSize()-2));
-                pinsizeLabel.setText(MessageFormat.format(getMessage(LABEL_PINSIZE), pinSpec.getLocalizedLength()));
-
-                GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
-                mainPanel.setLayout(mainPanelLayout);
-
-                GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout.createSequentialGroup()
-                        .addComponent(infoLabel);
-                GroupLayout.ParallelGroup infoVertical = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                        .addComponent(infoLabel);
-
-                if (!renderHeaderPanel) {
-                  infoHorizontal
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)
-                          .addComponent(switchFocusDummyLabel)
-                          .addComponent(helpLabel)
-                          ;
-                  infoVertical
-                          .addComponent(switchFocusDummyLabel)
-                          .addComponent(helpLabel)
-                          ;
-                }
-
-                // align pinfield and pinsize to the right
-                GroupLayout.Group pinHorizontal = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.TRAILING);
-                GroupLayout.SequentialGroup pinVertical = mainPanelLayout.createSequentialGroup();
-
-                if (pinLabelPos == PinLabelPosition.ABOVE) {
-                  pinHorizontal
-                          .addGroup(mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                            .addComponent(signPinLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                            .addComponent(pinField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                          .addComponent(pinsizeLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-                  pinVertical
-                          .addComponent(signPinLabel)
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                          .addComponent(pinField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                          .addComponent(pinsizeLabel);
-                } else { // PinLabelPosition.LEFT
-                  pinHorizontal
-                          .addGroup(mainPanelLayout.createSequentialGroup()
-                            .addComponent(signPinLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE)
-                            .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                            .addComponent(pinField, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
-                          .addComponent(pinsizeLabel, GroupLayout.PREFERRED_SIZE, GroupLayout.DEFAULT_SIZE, GroupLayout.PREFERRED_SIZE);
-                  pinVertical
-                          .addGroup(mainPanelLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
-                            .addComponent(signPinLabel)
-                            .addComponent(pinField))
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                          .addComponent(pinsizeLabel);
-                }
-
-                mainPanelLayout.setHorizontalGroup(
-                  mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                    .addGroup(infoHorizontal)
-                    .addGroup(pinHorizontal));
-
-                mainPanelLayout.setVerticalGroup(
-                  mainPanelLayout.createSequentialGroup()
-                    .addGroup(infoVertical)
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                    .addGroup(pinVertical));
-
-                GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
-                buttonPanel.setLayout(buttonPanelLayout);
-
-                GroupLayout.SequentialGroup buttonHorizontal = buttonPanelLayout.createSequentialGroup();
-                GroupLayout.Group buttonVertical;
-
-                if (renderCancelButton) {
-                  JButton cancelButton = new JButton();
-                  cancelButton.setFont(cancelButton.getFont().deriveFont(cancelButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-                  cancelButton.setText(getMessage(BUTTON_CANCEL));
-                  cancelButton.setActionCommand(cancelCommand);
-                  cancelButton.addActionListener(cancelListener);
-
-                  buttonHorizontal
-                          .addComponent(signButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE)
-                          .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-                          .addComponent(cancelButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE)
-                          ;
-                  buttonVertical = buttonPanelLayout.createParallelGroup(GroupLayout.Alignment.BASELINE)
-                          .addComponent(signButton)
-                          .addComponent(cancelButton)
-                          ;
-                } else {
-                  buttonHorizontal
-                          .addComponent(signButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE)
-                          ;
-                  buttonVertical = buttonPanelLayout.createSequentialGroup()
-                          .addComponent(signButton)
-                          ;
-                }
-
-                buttonPanelLayout.setHorizontalGroup(buttonHorizontal);
-                buttonPanelLayout.setVerticalGroup(buttonVertical);
-
-//                pinField.requestFocusInWindow();
-//                helpLabel.requestFocus();
-                pinField.requestFocus();
-                contentPanel.validate();
-
-            }
-        });
-    }
+		log.debug("Scheduling signature-pin dialog.");
+
+		SwingUtilities.invokeLater(new Runnable() {
+
+			@Override
+			public void run() {
+
+				log.debug("[{}] Show signature-pin dialog.", Thread.currentThread().getName());
+
+				mainPanel.removeAll();
+				buttonPanel.removeAll();
+
+				// specify policy to ensure correct focus traversal
+				if (useFocusTraversalPolicy) {
+
+					contentPanel.setFocusCycleRoot(true);
+					contentPanel
+							.setFocusTraversalPolicy(new AdvancedSigPinGUIFocusTraversalPolicy());
+				}
+
+				// avoid that dummy label gains focus during load
+				switchFocusDummyLabel.setFocusable(false);
+
+				if (renderHeaderPanel) {
+					if (numRetries < 0) {
+						titleLabel.setText(getMessage(TITLE_SIGN));
+					} else {
+						titleLabel.setText(getMessage(TITLE_RETRY));
+					}
+				}
+
+				infoLabel = new JLabel();
+				if (numRetries < 0) {
+					infoLabel.setFont(infoLabel.getFont().deriveFont(
+							infoLabel.getFont().getStyle()
+									& ~java.awt.Font.BOLD));
+					if (shortText) {
+						infoLabel
+								.setText(getMessage(MESSAGE_HASHDATALINK_TINY));
+					} else {
+						infoLabel.setText(getMessage(MESSAGE_HASHDATALINK));
+					}
+
+					infoLabel.setToolTipText(getMessage(SIGDATA_TOOLTIPTEXT));
+					infoLabel.getAccessibleContext().setAccessibleDescription(
+							getMessage(SIGDATA_TOOLTIPTEXT));
+					infoLabel.getAccessibleContext().setAccessibleName(
+							getMessage(SIGDATA_TOOLTIPTEXT));
+
+					infoLabel.setFocusable(true);
+					infoLabel.setCursor(Cursor
+							.getPredefinedCursor(Cursor.HAND_CURSOR));
+					infoLabel.setForeground(HYPERLINK_COLOR);
+					infoLabel.addMouseListener(new MouseAdapter() {
+
+						@Override
+						public void mouseClicked(MouseEvent me) {
+							ActionEvent e = new ActionEvent(this,
+									ActionEvent.ACTION_PERFORMED,
+									hashdataCommand);
+							hashdataListener.actionPerformed(e);
+						}
+					});
+
+					infoLabel.addKeyListener(new KeyAdapter() {
+
+						@Override
+						public void keyPressed(KeyEvent e) {
+
+							if (e.getKeyCode() == KeyEvent.VK_ENTER) {
+								ActionEvent e1 = new ActionEvent(this,
+										ActionEvent.ACTION_PERFORMED,
+										hashdataCommand);
+								hashdataListener.actionPerformed(e1);
+							}
+						}
+
+					});
+
+					infoLabel.addFocusListener(new FocusAdapter() {
+
+						@Override
+						public void focusGained(FocusEvent e) {
+
+							infoLabel.setBorder(sigDataFocusBorder);
+						}
+
+						@Override
+						public void focusLost(FocusEvent e) {
+
+							infoLabel.setBorder(BorderFactory
+									.createEmptyBorder());
+						}
+
+					});
+
+					helpListener.setHelpTopic(HELP_SIGNPIN);
+				} else {
+					String retryPattern;
+					if (numRetries < 2) {
+						retryPattern = getMessage(MESSAGE_LAST_RETRY);
+					} else {
+						retryPattern = getMessage(MESSAGE_RETRIES);
+					}
+					infoLabel.setFocusable(true);
+					infoLabel.setText(MessageFormat.format(retryPattern,
+							new Object[] { String.valueOf(numRetries) }));
+
+					infoLabel.setToolTipText(getMessage(SIGDATA_TOOLTIPTEXT));
+					infoLabel.getAccessibleContext().setAccessibleDescription(
+							getMessage(SIGDATA_TOOLTIPTEXT));
+					infoLabel.getAccessibleContext().setAccessibleName(
+							getMessage(SIGDATA_TOOLTIPTEXT));
+
+					infoLabel.setFont(infoLabel.getFont()
+							.deriveFont(
+									infoLabel.getFont().getStyle()
+											| java.awt.Font.BOLD));
+					infoLabel.setForeground(ERROR_COLOR);
+					helpListener.setHelpTopic(HELP_RETRY);
+				}
+
+				signButton.setFont(signButton.getFont().deriveFont(
+						signButton.getFont().getStyle() & ~java.awt.Font.BOLD));
+				signButton.setText(getMessage(BUTTON_SIGN));
+				signButton.setEnabled(pinSpec.getMinLength() <= 0);
+				signButton.setActionCommand(signCommand);
+				signButton.addActionListener(signListener);
+
+				signPinLabel.setFont(signPinLabel.getFont()
+						.deriveFont(
+								signPinLabel.getFont().getStyle()
+										& ~java.awt.Font.BOLD));
+				String pinLabel = getMessage(LABEL_PIN);
+				signPinLabel.setText(MessageFormat.format(pinLabel,
+						new Object[] { pinSpec.getLocalizedName() }));
+
+				pinField = new JPasswordField();
+				pinField.setText("");
+				pinField.setName("PINField");
+				pinField.setDocument(new PINDocument(pinSpec.getMinLength(),
+						pinSpec.getMaxLength(), pinSpec.getRexepPattern(),
+						signButton));
+				pinField.setActionCommand(signCommand);
+				pinField.addActionListener(new ActionListener() {
+
+					@Override
+					public void actionPerformed(ActionEvent e) {
+						if (pinField.getPassword().length >= pinSpec
+								.getMinLength()) {
+							signListener.actionPerformed(e);
+						}
+					}
+				});
+
+				// FIXME: For some reason, the switchFocusDummyLabel obtains the
+				// focus even
+				// if the pinField requests the focus. Therefore, the
+				// switchFocusDummyLabel is
+				// deactivated first and enabled only after the pinField has
+				// obtained the focus
+				pinField.addFocusListener(new FocusAdapter() {
+
+					@Override
+					public void focusGained(FocusEvent e) {
+
+						// focus has been set accordingly - re-enable dummy
+						// label
+						switchFocusDummyLabel.setFocusable(true);
+					}
+
+				});
+
+				pinsizeLabel.setFont(pinsizeLabel.getFont()
+						.deriveFont(
+								pinsizeLabel.getFont().getStyle()
+										& ~java.awt.Font.BOLD,
+								pinsizeLabel.getFont().getSize() - 2));
+				pinsizeLabel.setText(MessageFormat
+						.format(getMessage(LABEL_PINSIZE), pinSpec
+								.getLocalizedLength()));
+
+				pinField.getAccessibleContext().setAccessibleDescription(
+						infoLabel.getText() + signPinLabel.getText()
+								+ pinsizeLabel.getText());
+
+				GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
+				mainPanel.setLayout(mainPanelLayout);
+
+				GroupLayout.SequentialGroup infoHorizontal = mainPanelLayout
+						.createSequentialGroup().addComponent(infoLabel);
+				GroupLayout.ParallelGroup infoVertical = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addComponent(infoLabel);
+
+				if (!renderHeaderPanel) {
+
+					if (helpListener.implementsListener()) {
+						infoHorizontal.addPreferredGap(
+								LayoutStyle.ComponentPlacement.UNRELATED, 0,
+								Short.MAX_VALUE).addComponent(helpLabel);
+						infoVertical.addComponent(helpLabel);
+					}
+					infoHorizontal.addComponent(switchFocusDummyLabel);
+					infoVertical.addComponent(switchFocusDummyLabel);
+
+				}
+
+				// align pinfield and pinsize to the right
+				GroupLayout.Group pinHorizontal = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.TRAILING);
+				GroupLayout.SequentialGroup pinVertical = mainPanelLayout
+						.createSequentialGroup();
+
+				if (pinLabelPos == PinLabelPosition.ABOVE) {
+					pinHorizontal.addGroup(
+							mainPanelLayout.createParallelGroup(
+									GroupLayout.Alignment.LEADING)
+									.addComponent(signPinLabel,
+											GroupLayout.PREFERRED_SIZE,
+											GroupLayout.DEFAULT_SIZE,
+											GroupLayout.PREFERRED_SIZE)
+									.addComponent(pinField,
+											GroupLayout.PREFERRED_SIZE,
+											GroupLayout.DEFAULT_SIZE,
+											Short.MAX_VALUE)).addComponent(
+							pinsizeLabel, GroupLayout.PREFERRED_SIZE,
+							GroupLayout.DEFAULT_SIZE,
+							GroupLayout.PREFERRED_SIZE);
+					pinVertical.addComponent(signPinLabel).addPreferredGap(
+							LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinField, GroupLayout.PREFERRED_SIZE,
+									GroupLayout.DEFAULT_SIZE,
+									GroupLayout.PREFERRED_SIZE)
+							.addPreferredGap(
+									LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinsizeLabel);
+				} else { // PinLabelPosition.LEFT
+					pinHorizontal
+							.addGroup(
+									mainPanelLayout
+											.createSequentialGroup()
+											.addComponent(signPinLabel,
+													GroupLayout.PREFERRED_SIZE,
+													GroupLayout.DEFAULT_SIZE,
+													GroupLayout.PREFERRED_SIZE)
+											.addPreferredGap(
+													LayoutStyle.ComponentPlacement.RELATED)
+											.addComponent(pinField,
+													GroupLayout.PREFERRED_SIZE,
+													GroupLayout.DEFAULT_SIZE,
+													Short.MAX_VALUE))
+							.addComponent(pinsizeLabel,
+									GroupLayout.PREFERRED_SIZE,
+									GroupLayout.DEFAULT_SIZE,
+									GroupLayout.PREFERRED_SIZE);
+					pinVertical.addGroup(
+							mainPanelLayout.createParallelGroup(
+									GroupLayout.Alignment.BASELINE)
+									.addComponent(signPinLabel).addComponent(
+											pinField)).addPreferredGap(
+							LayoutStyle.ComponentPlacement.RELATED)
+							.addComponent(pinsizeLabel);
+				}
+
+				mainPanelLayout.setHorizontalGroup(mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING)
+						.addGroup(infoHorizontal).addGroup(pinHorizontal));
+
+				mainPanelLayout
+						.setVerticalGroup(mainPanelLayout
+								.createSequentialGroup().addGroup(infoVertical)
+								.addPreferredGap(
+										LayoutStyle.ComponentPlacement.RELATED)
+								.addGroup(pinVertical));
+
+				if (renderCancelButton) {
+					cancelButton.setFont(cancelButton.getFont().deriveFont(
+							cancelButton.getFont().getStyle()
+									& ~java.awt.Font.BOLD));
+					cancelButton.setText(getMessage(BUTTON_CANCEL));
+					cancelButton.setActionCommand(cancelCommand);
+					cancelButton.addActionListener(cancelListener);
+				}
+
+				updateMethodToRunAtResize("at.gv.egiz.bku.gui.BKUGUIImpl",
+						"renderSignaturePINDialogueButtonPanel");
+
+				renderSignaturePINDialogueButtonPanel();
+
+        if (windowCloseAdapter != null) {
+          windowCloseAdapter.registerListener(cancelListener, cancelCommand);
+        }
 
-    @Override
-    public void showErrorDialog(
-            final String errorMsgKey, final Object[] errorMsgParams,
-            final ActionListener okListener, final String okCommand) {
-        
-      showMessageDialog(TITLE_ERROR, ERROR_COLOR,
-              errorMsgKey, errorMsgParams, BUTTON_OK, okListener, okCommand);
-    }
+				primaryFocusHolder = pinField;
 
-    @Override
-    public void showErrorDialog(
-            final String errorMsgKey, final Object[] errorMsgParams) {
+				pinField.requestFocus();
 
-      showMessageDialog(TITLE_ERROR, ERROR_COLOR,
-              errorMsgKey, errorMsgParams, null, null, null);
-    }
+				contentPanel.validate();
 
-    @Override
-    public void showMessageDialog(
-            final String titleKey,
-            final String msgKey, final Object[] msgParams,
-            final String buttonKey,
-            final ActionListener okListener, final String okCommand) {
-
-      showMessageDialog(titleKey, null, 
-              msgKey, msgParams, buttonKey, okListener, okCommand);
-    }
+				resize();
+			}
+		});
+	}
 
-    @Override
-    public void showMessageDialog(
-            final String titleKey,
-            final String msgKey, final Object[] msgParams) {
+	public void renderSignaturePINDialogueButtonPanel() {
+
+		GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
+		buttonPanel.setLayout(buttonPanelLayout);
+
+		GroupLayout.SequentialGroup buttonHorizontal = buttonPanelLayout
+				.createSequentialGroup();
+		GroupLayout.Group buttonVertical;
+
+		if (renderCancelButton) {
+
+			buttonHorizontal.addComponent(signButton,
+					GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE).addPreferredGap(
+					LayoutStyle.ComponentPlacement.RELATED).addComponent(
+					cancelButton, GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE);
+			buttonVertical = buttonPanelLayout.createParallelGroup(
+					GroupLayout.Alignment.BASELINE).addComponent(signButton)
+					.addComponent(cancelButton);
+		} else {
+			buttonHorizontal.addComponent(signButton,
+					GroupLayout.PREFERRED_SIZE, buttonSize,
+					GroupLayout.PREFERRED_SIZE);
+			buttonVertical = buttonPanelLayout.createSequentialGroup()
+					.addComponent(signButton);
+		}
+
+		buttonPanelLayout.setHorizontalGroup(buttonHorizontal);
+		buttonPanelLayout.setVerticalGroup(buttonVertical);
 
-      showMessageDialog(titleKey, null,
-              msgKey, msgParams, null, null, null);
-    }
+	}
 
-    @Override
-    public void showMessageDialog(
-            final String titleKey, final String msgKey) {
+	@Override
+	public void showErrorDialog(final String errorMsgKey,
+			final Object[] errorMsgParams, final ActionListener okListener,
+			final String okCommand) {
 
-      showMessageDialog(titleKey, null,
-              msgKey, null, null, null, null);
-    }
+		showMessageDialog(TITLE_ERROR, ERROR_COLOR, errorMsgKey,
+				errorMsgParams, BUTTON_OK, okListener, okCommand);
+	}
 
-    /**
-     *
-     * @param buttonKey if null defaults to BUTTON_OK
-     */
-    private void showMessageDialog(
-            final String titleKey, final Color titleColor,
-            final String msgKey, final Object[] msgParams,
-            final String buttonKey,
-            final ActionListener okListener, final String okCommand) {
-
-      log.debug("scheduling message dialog");
-
-      SwingUtilities.invokeLater(new Runnable() {
-
-          @Override
-            public void run() {
-
-                log.debug("[" + Thread.currentThread().getName() + "] show message dialog");
-
-                mainPanel.removeAll();
-                buttonPanel.removeAll();
-
-                if (renderHeaderPanel) {
-                  titleLabel.setText(getMessage(titleKey));
-                }
-
-                helpMouseListener.setHelpTopic(msgKey);
-                helpKeyListener.setHelpTopic(msgKey);
-
-                String msgPattern = getMessage(msgKey);
-                String msg = MessageFormat.format(msgPattern, msgParams);
-
-                JLabel msgLabel = new JLabel();
-                msgLabel.setFont(msgLabel.getFont().deriveFont(msgLabel.getFont().getStyle() & ~Font.BOLD));
-                msgLabel.setText(msg);
-
-                GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
-                mainPanel.setLayout(mainPanelLayout);
-
-                GroupLayout.ParallelGroup mainHorizontal = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING);
-                GroupLayout.SequentialGroup mainVertical = mainPanelLayout.createSequentialGroup();
-
-                log.debug("focus to contentPanel");
-                contentPanel.requestFocus();
-                
-                if (!renderHeaderPanel) {
-                  JLabel titleLabel = new JLabel();
-                  titleLabel.setFont(titleLabel.getFont().deriveFont(titleLabel.getFont().getStyle() | Font.BOLD));
-                  titleLabel.setText(getMessage(titleKey));
-                  if (titleColor != null) {
-                    titleLabel.setForeground(titleColor);
-                  }
-
-                  mainHorizontal
-                          .addGroup(mainPanelLayout.createSequentialGroup()
-                            .addComponent(titleLabel)
-                            .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)
-                            .addComponent(switchFocusDummyLabel)
-                            .addComponent(helpLabel)
-                            );
-                  mainVertical
-                          .addGroup(mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                            .addComponent(titleLabel)
-                            .addComponent(switchFocusDummyLabel)
-                            .addComponent(helpLabel)
-                            );
-                  
-                  log.debug("focus to helpLabel");
-                  helpLabel.requestFocus();
-                }
-
-                mainPanelLayout.setHorizontalGroup(mainHorizontal
-                        .addComponent(msgLabel));
-                mainPanelLayout.setVerticalGroup(mainVertical
-                        .addComponent(msgLabel));
-
-                if (okListener != null) {
-                	
-                  JButton okButton = new JButton();
-                  okButton.setFont(okButton.getFont().deriveFont(okButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-                  okButton.setText(getMessage((buttonKey != null) ? buttonKey : BUTTON_OK));
-                  okButton.setActionCommand(okCommand);
-                  okButton.addActionListener(okListener);
-
-                  GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
-                  buttonPanel.setLayout(buttonPanelLayout);
-
-                  buttonPanelLayout.setHorizontalGroup(
-                    buttonPanelLayout.createSequentialGroup()
-                          .addComponent(okButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE));
-                  buttonPanelLayout.setVerticalGroup(
-                    buttonPanelLayout.createSequentialGroup()
-                      .addComponent(okButton));
-                  
-                  log.debug("focus to ok-button");
-                  okButton.requestFocus();
-                }
-
-                contentPanel.validate();
-            }
-        });
-    }
+	@Override
+	public void showErrorDialog(final String errorMsgKey,
+			final Object[] errorMsgParams) {
 
+		showMessageDialog(TITLE_ERROR, ERROR_COLOR, errorMsgKey,
+				errorMsgParams, null, null, null);
+	}
 
-    @Override
-    public char[] getPin() {
-        if (pinField != null) {
-          char[] pin = pinField.getPassword(); //returns a copy
-          pinField = null; //garbage collect original pin (make sure to clear char[] after use)
-          return pin;
-        }
-        return null;
-    }
+	@Override
+	public void showMessageDialog(final String titleKey, final String msgKey,
+			final Object[] msgParams, final String buttonKey,
+			final ActionListener okListener, final String okCommand) {
 
+		showMessageDialog(titleKey, null, msgKey, msgParams, buttonKey,
+				okListener, okCommand);
+	}
 
-    ////////////////////////////////////////////////////////////////////////////
-    // SECURE VIEWER
-    ////////////////////////////////////////////////////////////////////////////
+	@Override
+	public void showMessageDialog(final String titleKey, final String msgKey,
+			final Object[] msgParams) {
 
-    
-    /**
-     * @param signedReferences
-     * @param backListener gets notified if pin-dialog has to be redrawn
-     * (signedRefencesList returns via BACK button)
-     * @param okCommand
-     */
-    @Override
-    public void showSecureViewer(final List<HashDataInput> dataToBeSigned,
-            final ActionListener backListener, final String backCommand) {
-      
-      if (dataToBeSigned == null) {
-        showErrorDialog(getMessage(ERR_NO_HASHDATA),
-                new Object[] {"no signature data provided"},
-                backListener, backCommand);
-      } else if (dataToBeSigned.size() == 1) {
-        //TODO pull out (see also SignedReferencesSelectionListener)
-        if (SecureViewerDialog.SUPPORTED_MIME_TYPES.contains(dataToBeSigned.get(0).getMimeType())) {
-          try {
-            log.debug("[" + Thread.currentThread().getName() + "] scheduling secure viewer");
-  
-            SwingUtilities.invokeLater(new Runnable() {
-  
-              @Override
-              public void run() {
-                try {
-                  showMessageDialog(TITLE_SIGNATURE_DATA, MESSAGE_HASHDATA_VIEWER);
-                  showSecureViewer(dataToBeSigned.get(0), backListener, backCommand);
-                } catch (FontProviderException ex) {
-                  log.error("failed to display secure viewer", ex);
-                  showErrorDialog(ERR_VIEWER, new Object[] {ex.getMessage()}, backListener, backCommand);
-                }
-              }
-            });
-         
-          } catch (Exception ex) { //InterruptedException InvocationTargetException
-            log.error("Failed to display secure viewer: " + ex.getMessage());
-            log.trace(ex);
-            showErrorDialog(ERR_UNKNOWN, null, backListener, backCommand);
-          }
-        } else {
-          log.debug("[" + Thread.currentThread().getName() + "] mime-type not supported by secure viewer, scheduling save dialog");
-          showMessageDialog(TITLE_SIGNATURE_DATA, MESSAGE_UNSUPPORTED_MIMETYPE);
-          SecureViewerSaveDialog.showSaveDialog(dataToBeSigned.get(0), messages, backListener, backCommand); 
-        }
-      } else {
-        showSignedReferencesListDialog(dataToBeSigned, backListener, backCommand);
-      }
-    }
-    
-    /**
-     * has to be called from event dispatcher thread
-     */
-    private void showSecureViewer(HashDataInput dataToBeSigned, ActionListener closeListener, String closeCommand) throws FontProviderException {
-      
-      log.debug("[" + Thread.currentThread().getName() + "] show secure viewer");
-      SecureViewerDialog secureViewer = new SecureViewerDialog(null, messages,
-          closeListener, closeCommand,
-            fontProvider, helpMouseListener.getActionListener());
-        
-      // workaround for [#439]
-      // avoid AlwaysOnTop at least in applet, otherwise make secureViewer AlwaysOnTop since MOCCA Dialog (JFrame created in LocalSTALFactory) is always on top.
-      Window window = SwingUtilities.getWindowAncestor(contentPane);
-      if (window != null && window.isAlwaysOnTop()) {
-        log.debug("make secureViewer alwaysOnTop");
-        secureViewer.setAlwaysOnTop(true);
-      }
-      secureViewer.setContent(dataToBeSigned);
-      log.trace("viewer setContent returned");
-    }
-    
-    
-    
-    private void showSignedReferencesListDialog(final List<HashDataInput> signedReferences,
-            final ActionListener backListener, final String backCommand) {
-      
-      log.debug("[" + Thread.currentThread().getName() + "] scheduling signed references list dialog");
-      
-      SwingUtilities.invokeLater(new Runnable() {
-
-        @Override
-        public void run() {
-          
-          log.debug("[" + Thread.currentThread().getName() + "] show signed references list dialog");
-          
-          mainPanel.removeAll();
-          buttonPanel.removeAll();
-
-          if (renderHeaderPanel) {
-            titleLabel.setText(getMessage(TITLE_SIGNATURE_DATA));
-          }
-          
-          helpMouseListener.setHelpTopic(HELP_HASHDATALIST);
-          helpKeyListener.setHelpTopic(HELP_HASHDATALIST);
-          
-          JLabel refIdLabel = new JLabel();
-          refIdLabel.setFont(refIdLabel.getFont().deriveFont(refIdLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
-          String refIdLabelPattern = getMessage(MESSAGE_HASHDATALIST);
-          refIdLabel.setText(MessageFormat.format(refIdLabelPattern, new Object[]{signedReferences.size()}));
-
-          HashDataTableModel tableModel = new HashDataTableModel(signedReferences, renderRefId);
-          final JTable hashDataTable = new JTable(tableModel);
-          hashDataTable.setDefaultRenderer(HashDataInput.class, new HyperlinkRenderer(renderRefId));
-          hashDataTable.setTableHeader(null);
-          
-          hashDataTable.addMouseMotionListener(new SignedReferencesMouseMotionListener(hashDataTable));
-          
-          hashDataTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
-          hashDataTable.getSelectionModel().addListSelectionListener(new SignedReferencesSelectionListener(signedReferences, backListener, backCommand));
-          
-          JScrollPane hashDataScrollPane = new JScrollPane(hashDataTable);
-
-          GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
-          mainPanel.setLayout(mainPanelLayout);
-          
-          GroupLayout.SequentialGroup messageHorizontal = mainPanelLayout.createSequentialGroup()
-                  .addComponent(refIdLabel);
-          
-          GroupLayout.ParallelGroup messageVertical = mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-                  .addComponent(refIdLabel);
-          
-          if (!renderHeaderPanel) {
-            messageHorizontal
-                    .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED, 0, Short.MAX_VALUE)                    
-                    .addComponent(switchFocusDummyLabel)
-                    .addComponent(helpLabel)
-                    ;
-            messageVertical                    
-                    .addComponent(switchFocusDummyLabel)
-                    .addComponent(helpLabel)
-                    ;
-          }
-
-          mainPanelLayout.setHorizontalGroup(
-            mainPanelLayout.createParallelGroup(GroupLayout.Alignment.LEADING)
-              .addGroup(messageHorizontal)
-              .addComponent(hashDataScrollPane, 0, 0, Short.MAX_VALUE));
-
-          mainPanelLayout.setVerticalGroup(
-            mainPanelLayout.createSequentialGroup()
-              .addGroup(messageVertical)
-              .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
-              .addComponent(hashDataScrollPane, 0, 0, hashDataTable.getPreferredSize().height+3));
-
-          JButton backButton = new JButton();
-          backButton.setFont(backButton.getFont().deriveFont(backButton.getFont().getStyle() & ~java.awt.Font.BOLD));
-          backButton.setText(getMessage(BUTTON_BACK));
-          backButton.setActionCommand(backCommand);
-          backButton.addActionListener(backListener);
-
-          GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
-          buttonPanel.setLayout(buttonPanelLayout);
-
-          buttonPanelLayout.setHorizontalGroup(buttonPanelLayout.createSequentialGroup()
-                  .addComponent(backButton, GroupLayout.PREFERRED_SIZE, buttonSize, GroupLayout.PREFERRED_SIZE));
-          buttonPanelLayout.setVerticalGroup(buttonPanelLayout.createSequentialGroup()
-                  .addComponent(backButton));
-
-          contentPanel.validate();
-        }
-      });
-    }
-    
-   
-    
-    /**
-     * not possible to add mouse listener to TableCellRenderer
-     * to change cursor on specific columns only, use table.columnAtPoint(e.getPoint()) 
-     *
-     */
-    private class SignedReferencesMouseMotionListener extends MouseMotionAdapter {
-
-      JTable hashDataTable;
-      
-      public SignedReferencesMouseMotionListener(JTable table) {
-        this.hashDataTable = table;
-      }
-      
-      @Override
-      public void mouseMoved(MouseEvent e) {
-//        if (hashDataTable.columnAtPoint(e.getPoint()) == 0) {
-          hashDataTable.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
-      }
-    }
-    
-    ///////////
-    // SignedReferencesList (TODO pull out)
-    
-    public class SignedReferencesSelectionListener implements ListSelectionListener {
-      
-      List<HashDataInput> signedReferences;
-      ActionListener backListener;
-      String backCommand;
-      
-      public SignedReferencesSelectionListener(List<HashDataInput> signedReferences, ActionListener backListener, String backCommand) {
-        this.signedReferences = signedReferences;
-        this.backListener = backListener;
-        this.backCommand = backCommand;
-      }
-      
-      @Override
-      public void valueChanged(ListSelectionEvent event) {
-        
-        if (event.getValueIsAdjusting()) {
-          return;
-        }
-        
-        ListSelectionModel lsm = (ListSelectionModel) event.getSource();
-        int selectionIdx = lsm.getMinSelectionIndex();
-
-        log.debug("[" + Thread.currentThread().getName() + "] reference " + selectionIdx + " selected");
-        
-        if (selectionIdx >= 0) {
-          final HashDataInput selection = signedReferences.get(selectionIdx);
-          final SignedReferencesListDisplayer backToListListener = new SignedReferencesListDisplayer(signedReferences, backListener, backCommand);
-          
-          if (SecureViewerDialog.SUPPORTED_MIME_TYPES.contains(selection.getMimeType())) {
-            log.debug("[" + Thread.currentThread().getName() + "] scheduling secure viewer dialog");
-            SwingUtilities.invokeLater(new Runnable() {
-              
-              @Override
-              public void run() {
-                try {
-                  showMessageDialog(TITLE_SIGNATURE_DATA, MESSAGE_HASHDATA_VIEWER);
-                  showSecureViewer(selection, backToListListener, null);
-//                  SecureViewerDialog.showSecureViewer(selection, messages, fontProvider, helpMouseListener.getActionListener(), false);
-                } catch (FontProviderException ex) {
-                  log.error("failed to display secure viewer", ex);
-                  showErrorDialog(BKUGUIFacade.ERR_VIEWER, new Object[] {ex.getMessage()}, backToListListener, null);
-                }
-                
-              }
-            });
-          } else {
-            log.debug("[" + Thread.currentThread().getName() + "] mime-type not supported by secure viewer, scheduling save dialog");
-            showMessageDialog(BKUGUIFacade.TITLE_SIGNATURE_DATA, BKUGUIFacade.MESSAGE_UNSUPPORTED_MIMETYPE);
-            SecureViewerSaveDialog.showSaveDialog(selection, messages, backToListListener, null);
-          }
-        }
-      }
-      
-      /**
-       * ActionListener that returns to signed references list 
-       */
-      private class SignedReferencesListDisplayer implements ActionListener {
-        List<HashDataInput> sr;
-        ActionListener bl;
-        String bc;
-        
-        public SignedReferencesListDisplayer(List<HashDataInput> signedReferences, ActionListener backListener, String backCommand) {
-          sr = signedReferences;
-          bl = backListener;
-          bc = backCommand;
-        }
-        
-        @Override
-        public void actionPerformed(ActionEvent e) {
-//          log.debug("[" + Thread.currentThread().getName() + "] displaying signed references list");
-          showSignedReferencesListDialog(sr, bl, bc); 
-        }
-      }
-    }
+		showMessageDialog(titleKey, null, msgKey, msgParams, null, null, null);
+	}
 
+	@Override
+	public void showMessageDialog(final String titleKey, final String msgKey) {
 
-    ////////////////////////////////////////////////////////////////////////////
-    // UTILITY METHODS
-    ////////////////////////////////////////////////////////////////////////////
-
-    private void registerHelpListener(ActionListener helpListener) {
-      if (helpListener != null) {
-        this.helpMouseListener = new HelpMouseListener(helpListener);
-        this.helpKeyListener = new HelpKeyListener(helpListener);
-      } else {
-        log.error("no help listener provided, will not be able to display help");
-        this.helpMouseListener = new HelpMouseListener(new ActionListener() {
-
-          @Override
-          public void actionPerformed(ActionEvent e) {
-            log.error("no help listener registered (requested help topic: " + e.getActionCommand() + ")");
-          }
-        });
-        this.helpKeyListener = new HelpKeyListener(new ActionListener() {
-
-            @Override
-            public void actionPerformed(ActionEvent e) {
-              log.error("no help listener registered (requested help topic: " + e.getActionCommand() + ")");
-            }
-          });
-      }
-    }
+		showMessageDialog(titleKey, null, msgKey, null, null, null, null);
+	}
+
+	/**
+	 * 
+	 * @param buttonKey
+	 *            if null defaults to BUTTON_OK
+	 */
+	private void showMessageDialog(final String titleKey,
+			final Color titleColor, final String msgKey,
+			final Object[] msgParams, final String buttonKey,
+			final ActionListener okListener, final String okCommand) {
+
+		log.debug("Scheduling message dialog.");
+
+		SwingUtilities.invokeLater(new Runnable() {
+
+			@Override
+			public void run() {
+
+				log.debug("[{}] Show message dialog.", Thread.currentThread().getName());
+
+				log.debug("ButtonKey: {}.", buttonKey);
+
+				mainPanel.removeAll();
+				buttonPanel.removeAll();
+
+				// avoid that dummy label gains focus during load
+				switchFocusDummyLabel.setFocusable(false);
+
+				if (renderHeaderPanel) {
+					titleLabel.setText(getMessage(titleKey));
+				}
 
-    private void registerSwitchFocusListener(ActionListener switchFocusListener) {
-        if (switchFocusListener != null) {
-          this.switchFocusKeyListener = new SwitchFocusFocusListener(switchFocusListener);
-          
-        } else {
-   
-          this.switchFocusKeyListener = new SwitchFocusFocusListener(new ActionListener() {
-
-              @Override
-              public void actionPerformed(ActionEvent e) {
-                log.warn("no switch focus listener registered");
-              }
-            });          
+				helpListener.setHelpTopic(msgKey);
+
+				String msgPattern = getMessage(msgKey);
+				String msg = MessageFormat.format(msgPattern, msgParams);
+
+				// we need to create a new JLabel object every time in order to
+				// ensure
+				// that screen reading software will read each updated label
+				msgLabel = new JLabel();
+
+				msgLabel.setFocusable(true);
+
+				msgLabel.setFont(msgLabel.getFont().deriveFont(
+						msgLabel.getFont().getStyle() & ~Font.BOLD));
+				msgLabel.setText(msg);
+
+				GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
+				mainPanel.setLayout(mainPanelLayout);
+
+				GroupLayout.ParallelGroup mainHorizontal = mainPanelLayout
+						.createParallelGroup(GroupLayout.Alignment.LEADING);
+				GroupLayout.SequentialGroup mainVertical = mainPanelLayout
+						.createSequentialGroup();
+
+				String accessibleData = "";
+
+				if (!renderHeaderPanel) {
+					msgTitleLabel = new JLabel();
+					msgTitleLabel.setFont(msgTitleLabel.getFont().deriveFont(
+							msgTitleLabel.getFont().getStyle() | Font.BOLD));
+					msgTitleLabel.setText(getMessage(titleKey));
+
+					if (titleColor != null) {
+						msgTitleLabel.setForeground(titleColor);
+					}
+
+					accessibleData = accessibleData + getMessage(titleKey);
+
+					GroupLayout.SequentialGroup titleHorizontal = mainPanelLayout
+							.createSequentialGroup()
+							.addComponent(msgTitleLabel);
+
+					GroupLayout.ParallelGroup titleVertical = mainPanelLayout
+							.createParallelGroup(GroupLayout.Alignment.LEADING)
+							.addComponent(msgTitleLabel);
+
+					if (helpListener.implementsListener()) {
+						titleHorizontal.addPreferredGap(
+								LayoutStyle.ComponentPlacement.UNRELATED, 0,
+								Short.MAX_VALUE).addComponent(helpLabel);
+						titleVertical.addComponent(helpLabel);
+					}
+					titleHorizontal.addComponent(switchFocusDummyLabel);
+					titleVertical.addComponent(switchFocusDummyLabel);
+
+					mainHorizontal.addGroup(titleHorizontal);
+					mainVertical.addGroup(titleVertical);
+
+				} else {
+
+					accessibleData = accessibleData + titleLabel.getText();
+				}
+
+				msgLabel.getAccessibleContext().setAccessibleName(
+						accessibleData + msgLabel.getText());
+				msgLabel.getAccessibleContext().setAccessibleDescription(
+						accessibleData + msgLabel.getText());
+
+				msgLabel.addFocusListener(new FocusAdapter() {
+
+					@Override
+					public void focusGained(FocusEvent e) {
+
+						// focus has been set accordingly - re-enable dummy
+						// label
+						switchFocusDummyLabel.setFocusable(true);
+					}
+
+				});
+
+				mainPanelLayout.setHorizontalGroup(mainHorizontal
+						.addComponent(msgLabel));
+				mainPanelLayout.setVerticalGroup(mainVertical
+						.addComponent(msgLabel));
+
+				if (okListener != null) {
+
+					showMessageOKButton = true;
+
+					okButton.setFont(okButton.getFont()
+							.deriveFont(
+									okButton.getFont().getStyle()
+											& ~java.awt.Font.BOLD));
+					okButton.setText(getMessage((buttonKey != null) ? buttonKey
+							: BUTTON_OK));
+					okButton.setActionCommand(okCommand);
+					okButton.addActionListener(okListener);
+
+					renderShowMessageDialogueButtonPanel();
+
+					primaryFocusHolder = msgLabel;
+
+				} else {
+					log.debug("No okListener configured.");
+					showMessageOKButton = false;
+				}
+
+        // okListener might be null (up to windowCloseAdapter what to do)
+        if (windowCloseAdapter != null) {
+          windowCloseAdapter.registerListener(okListener, okCommand);
         }
-      }
-
-    ////////////////////////////////////////////////////////////////////////////
-    // INITIALIZERS (MAY BE OVERRIDDEN BY SUBCLASSES)
-    ////////////////////////////////////////////////////////////////////////////
-
-    /**
-     * Load applet messages bundle. Note that getBundle looks for classes based
-     * on the default Locale before it selects the base class!
-     * 
-     * Called from constructor.
-     * Subclasses may override this method to ensure the message bundle is loaded
-     * once initButtonSize (called from constructor as well) is called.
-     * (Only relevant if initButtonSize is overridden as well)
-     * @param locale
-     */
-    protected void loadMessageBundle(Locale locale) {
-      if (locale != null) {
-        // see [#378] Ignoring post parameter 'locale': bundle resolve-order not correct?!
-        Locale lang = new Locale(locale.getLanguage().substring(0, 2));
-        log.debug("loading applet resources for language: " + lang.toString());
-        messages = ResourceBundle.getBundle(MESSAGES_BUNDLE, lang);
-      } else {
-        log.debug("loading default language applet resources");
-        messages = ResourceBundle.getBundle(MESSAGES_BUNDLE);
-      }
-      // how the f*** you know the default Messages.properties is de?!
-      log.debug("applet messages loaded: " + messages.getLocale());
-    }
 
-    protected int initButtonSize() {
-      int bs = 0;
-
-      JButton b = new JButton();
-      b.setText(getMessage(BUTTON_OK));
-      if (b.getPreferredSize().width > bs) {
-        bs = b.getPreferredSize().width;
-      }
-      // need cancel button for message dialog,
-      // even if renderCancelButton == false
-      b.setText(getMessage(BUTTON_CANCEL));
-      if (b.getPreferredSize().width > bs) {
-        bs = b.getPreferredSize().width;
-      }
-      b.setText(getMessage(BUTTON_SIGN));
-      if (b.getPreferredSize().width > bs) {
-        bs = b.getPreferredSize().width;
-      }
-      b.setText(getMessage(BUTTON_BACK));
-      if (b.getPreferredSize().width > bs) {
-        bs = b.getPreferredSize().width;
-      }
-      b.setText(getMessage(BUTTON_SAVE));
-      if (b.getPreferredSize().width > bs) {
-        bs = b.getPreferredSize().width;
-      }
-      return bs;
-    }
+				updateMethodToRunAtResize("at.gv.egiz.bku.gui.BKUGUIImpl",
+						"renderShowMessageDialogueButtonPanel");
+
+				// put focus to msgLabel to guarantee that label is read by
+				// screen reader upon loading
+				msgLabel.requestFocus();
+
+				contentPanel.validate();
+
+				resize();
+			}
+		});
+	}
+
+	public void renderShowMessageDialogueButtonPanel() {
+
+		if (showMessageOKButton) {
+			GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
+			buttonPanel.setLayout(buttonPanelLayout);
+
+			buttonPanelLayout.setHorizontalGroup(buttonPanelLayout
+					.createSequentialGroup().addComponent(okButton,
+							GroupLayout.PREFERRED_SIZE, buttonSize,
+							GroupLayout.PREFERRED_SIZE));
+			buttonPanelLayout.setVerticalGroup(buttonPanelLayout
+					.createSequentialGroup().addComponent(okButton));
+		}
+	}
+
+	@Override
+	public char[] getPin() {
+		if (pinField != null) {
+			char[] pin = pinField.getPassword(); // returns a copy
+			pinField = null; // garbage collect original pin (make sure to clear
+			// char[] after use)
+			return pin;
+		}
+		return null;
+	}
+
+	// //////////////////////////////////////////////////////////////////////////
+	// SECURE VIEWER
+	// //////////////////////////////////////////////////////////////////////////
+
+	/**
+	 * @param signedReferences
+	 * @param backListener
+	 *            gets notified if pin-dialog has to be redrawn
+	 *            (signedRefencesList returns via BACK button)
+	 * @param okCommand
+	 */
+	@Override
+	public void showSecureViewer(final List<HashDataInput> dataToBeSigned,
+			final ActionListener backListener, final String backCommand) {
+
+		if (dataToBeSigned == null) {
+			showErrorDialog(getMessage(ERR_NO_HASHDATA),
+					new Object[] { "no signature data provided" },
+					backListener, backCommand);
+		} else if (dataToBeSigned.size() == 1) {
+			// TODO pull out (see also SignedReferencesSelectionListener)
+			if (SecureViewerDialog.SUPPORTED_MIME_TYPES.contains(dataToBeSigned
+					.get(0).getMimeType())) {
+				try {
+					log.debug("[{}] Scheduling secure viewer.", Thread.currentThread().getName());
+
+					showMessageDialog(TITLE_SIGNATURE_DATA,
+							MESSAGE_HASHDATA_VIEWER);
+
+					SwingUtilities.invokeLater(new Runnable() {
+
+						@Override
+						public void run() {
+							try {
+								showSecureViewer(dataToBeSigned.get(0),
+										backListener, backCommand);
+							} catch (FontProviderException ex) {
+								log.error("Failed to display secure viewer.", ex);
+								showErrorDialog(ERR_VIEWER, new Object[] { ex
+										.getMessage() }, backListener,
+										backCommand);
+							}
+						}
+					});
+
+				} catch (Exception ex) { // InterruptedException
+					// InvocationTargetException
+					log.error("Failed to display secure viewer. ", ex);
+					showErrorDialog(ERR_UNKNOWN, null, backListener,
+							backCommand);
+				}
+			} else {
+				log.debug("[{}] mime-type not supported by secure viewer, " +
+						"scheduling save dialog.", Thread.currentThread().getName());
+				showMessageDialog(TITLE_SIGNATURE_DATA,
+						MESSAGE_UNSUPPORTED_MIMETYPE,
+						new Object[] { dataToBeSigned.get(0).getMimeType() });
+				SecureViewerSaveDialog.showSaveDialog(dataToBeSigned.get(0),
+						messages, backListener, backCommand,
+						(int) (baseFontSize * getResizeFactor()));
+			}
+		} else {
+			showSignedReferencesListDialog(dataToBeSigned, backListener,
+					backCommand);
+		}
+	}
+
+	/**
+	 * has to be called from event dispatcher thread
+	 */
+	private void showSecureViewer(HashDataInput dataToBeSigned,
+			ActionListener closeListener, String closeCommand)
+			throws FontProviderException {
+
+		log.debug("[{}] Show secure viewer.");
+		secureViewer = new SecureViewerDialog(null, messages, closeListener,
+				closeCommand, fontProvider, helpListener, getResizeFactor());
+
+		// workaround for [#439]
+		// avoid AlwaysOnTop at least in applet, otherwise make secureViewer
+		// AlwaysOnTop since MOCCA Dialog (JFrame created in LocalSTALFactory)
+		// is always on top.
+		Window window = SwingUtilities.getWindowAncestor(contentPane);
+		if (window != null && window.isAlwaysOnTop()) {
+			log.debug("Make secureViewer alwaysOnTop.");
+			secureViewer.setAlwaysOnTop(true);
+		}
+
+		secureViewer.setContent(dataToBeSigned);
+		log.trace("Viewer setContent returned.");
+	}
+
+	private void openSecureViewerDialog() {
+		
+		final HashDataInput storedSelection = signedReferences.get(referenceIndex);
+		
+		if (SecureViewerDialog.SUPPORTED_MIME_TYPES.contains(storedSelection
+				.getMimeType())) {
+			log.debug("[{}] Scheduling secure viewer dialog.", Thread.currentThread().getName());
+
+			showMessageDialog(TITLE_SIGNATURE_DATA,
+					MESSAGE_HASHDATA_VIEWER);
+
+			SwingUtilities.invokeLater(new Runnable() {
+
+				@Override
+				public void run() {
+					try {
+						showSecureViewer(storedSelection, storedBackToListListener,
+								null);
+						// SecureViewerDialog.showSecureViewer(selection,
+						// messages, fontProvider,
+						// helpMouseListener.getActionListener(),
+						// false);
+					} catch (FontProviderException ex) {
+						log.error("Failed to display secure viewer.", ex);
+						showErrorDialog(BKUGUIFacade.ERR_VIEWER,
+								new Object[] { ex.getMessage() },
+								storedBackToListListener, null);
+					}
+
+				}
+			});
+		} else {
+			log.debug("[{}] Mime-type not supported by secure viewer, " +
+					"scheduling save dialog.", Thread.currentThread().getName());
+			showMessageDialog(BKUGUIFacade.TITLE_SIGNATURE_DATA,
+					BKUGUIFacade.MESSAGE_UNSUPPORTED_MIMETYPE,
+					new Object[] { storedSelection.getMimeType() });
+			SecureViewerSaveDialog.showSaveDialog(storedSelection, messages,
+					storedBackToListListener, null,
+					(int) (baseFontSize * getResizeFactor()));
+		}		
+		
+		
+	}
+	
+	private void showSignedReferencesListDialog(
+			final List<HashDataInput> signedReferences,
+			final ActionListener backListener, final String backCommand) {
+
+		log.debug("[{}] Scheduling signed references list dialog.", Thread.currentThread().getName());
+
+		SwingUtilities.invokeLater(new Runnable() {
+
+			@Override
+			public void run() {
+
+				log.debug("[{}] Show signed references list dialog.", Thread.currentThread().getName());
+
+				mainPanel.removeAll();
+				buttonPanel.removeAll();
+
+				if (renderHeaderPanel) {
+					titleLabel.setText(getMessage(TITLE_SIGNATURE_DATA));
+				}
+
+				helpListener.setHelpTopic(HELP_HASHDATALIST);
+
+				refIdLabel = new JLabel();
+				refIdLabel.setFont(refIdLabel.getFont().deriveFont(
+						refIdLabel.getFont().getStyle() & ~java.awt.Font.BOLD));
+				String refIdLabelPattern = getMessage(MESSAGE_HASHDATALIST);
+				refIdLabel.setText(MessageFormat.format(refIdLabelPattern,
+						new Object[] { signedReferences.size() }));
+
+				HashDataTableModel tableModel = new HashDataTableModel(
+						signedReferences, renderRefId);
+				hashDataTable = new JTable(tableModel);
+				
+				hyperlinkRenderer = new HyperlinkRenderer(renderRefId);
+				
+				hashDataTable.setDefaultRenderer(HashDataInput.class,
+						hyperlinkRenderer);
+				hashDataTable.setTableHeader(null);
+
+				hashDataTable
+						.addMouseMotionListener(new SignedReferencesMouseMotionListener(
+								hashDataTable));
+				
+				hashDataTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+
+				hashDataTable
+						.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+				hashDataTable.getSelectionModel().addListSelectionListener(
+						new SignedReferencesSelectionListener(signedReferences,
+								backListener, backCommand));
+				
+				
+				hashDataTable.addMouseListener(new MouseAdapter() {
+					
+					@Override
+					public void mouseClicked(MouseEvent e) {
+						
+						openSecureViewerDialog();
+					}
+
+				});
+
+				hashDataTable.addKeyListener(new KeyAdapter() {
+					
+					@Override
+					public void keyPressed(KeyEvent e) {
+						
+						if(e.getKeyCode() == KeyEvent.VK_ENTER) {
+							
+							log.debug("Detected Enter Key.");
+							
+							openSecureViewerDialog();
+						}
+						
+					}
+					
+				});
+
+				hashDataScrollPane = new JScrollPane(hashDataTable);
+
+				backButton.setFont(backButton.getFont().deriveFont(
+						backButton.getFont().getStyle() & ~java.awt.Font.BOLD));
+				backButton.setText(getMessage(BUTTON_BACK));
+				backButton.setActionCommand(backCommand);
+				backButton.addActionListener(backListener);				
+
+				primaryFocusHolder = hashDataTable;
+				
+				updateMethodToRunAtResize("at.gv.egiz.bku.gui.BKUGUIImpl", "renderSignedReferenceListButtonandTable");
+				
+				renderSignedReferenceListButtonandTable();
+
+				hashDataTable.requestFocus();
+				
+				contentPanel.validate();
+				
+				resize();
+			}
+		});
+	}
+
+	public void renderSignedReferenceListButtonandTable() {
+		
+		GroupLayout mainPanelLayout = new GroupLayout(mainPanel);
+		mainPanel.setLayout(mainPanelLayout);
+
+		GroupLayout.SequentialGroup messageHorizontal = mainPanelLayout
+				.createSequentialGroup().addComponent(refIdLabel);
+
+		GroupLayout.ParallelGroup messageVertical = mainPanelLayout
+				.createParallelGroup(GroupLayout.Alignment.LEADING)
+				.addComponent(refIdLabel);
+
+		if (!renderHeaderPanel) {
+
+			if (helpListener.implementsListener()) {
+				messageHorizontal.addPreferredGap(
+						LayoutStyle.ComponentPlacement.UNRELATED, 0,
+						Short.MAX_VALUE).addComponent(helpLabel);
+				messageVertical.addComponent(helpLabel);
+			}
+			messageHorizontal.addComponent(switchFocusDummyLabel);
+			messageVertical.addComponent(switchFocusDummyLabel);
+		}
+
+		mainPanelLayout.setHorizontalGroup(mainPanelLayout
+				.createParallelGroup(GroupLayout.Alignment.LEADING)
+				.addGroup(messageHorizontal).addComponent(
+						hashDataScrollPane, 0, 0, Short.MAX_VALUE));
+
+		mainPanelLayout
+				.setVerticalGroup(mainPanelLayout
+						.createSequentialGroup()
+						.addGroup(messageVertical)
+						.addPreferredGap(
+								LayoutStyle.ComponentPlacement.RELATED)
+						.addComponent(
+								hashDataScrollPane,
+								0,
+								0,
+								hashDataTable.getPreferredSize().height + 3));
+
+
+
+		GroupLayout buttonPanelLayout = new GroupLayout(buttonPanel);
+		buttonPanel.setLayout(buttonPanelLayout);
+
+		buttonPanelLayout.setHorizontalGroup(buttonPanelLayout
+				.createSequentialGroup().addComponent(backButton,
+						GroupLayout.PREFERRED_SIZE, buttonSize,
+						GroupLayout.PREFERRED_SIZE));
+		buttonPanelLayout.setVerticalGroup(buttonPanelLayout
+				.createSequentialGroup().addComponent(backButton));
+		
+	}
+	
+	/**
+	 * not possible to add mouse listener to TableCellRenderer to change cursor
+	 * on specific columns only, use table.columnAtPoint(e.getPoint())
+	 * 
+	 */
+	private class SignedReferencesMouseMotionListener extends
+			MouseMotionAdapter {
+
+		JTable hashDataTable;
+
+		public SignedReferencesMouseMotionListener(JTable table) {
+			this.hashDataTable = table;
+		}
+
+		@Override
+		public void mouseMoved(MouseEvent e) {
+			// if (hashDataTable.columnAtPoint(e.getPoint()) == 0) {
+			hashDataTable.setCursor(Cursor
+					.getPredefinedCursor(Cursor.HAND_CURSOR));
+		}
+	}
+
+	// /////////
+	// SignedReferencesList (TODO pull out)
+
+	public class SignedReferencesSelectionListener implements
+			ListSelectionListener {
+
+//		List<HashDataInput> signedReferences;
+		ActionListener backListener;
+		String backCommand;
+
+		public SignedReferencesSelectionListener(
+				List<HashDataInput> signedReferences,
+				ActionListener backListener, String backCommand) {
+//			this.signedReferences = signedReferences;
+			BKUGUIImpl.this.signedReferences = signedReferences;
+			this.backListener = backListener;
+			this.backCommand = backCommand;
+		}
+
+		@Override
+		public void valueChanged(ListSelectionEvent event) {
+
+			if (event.getValueIsAdjusting()) {
+				return;
+			}
+
+			ListSelectionModel lsm = (ListSelectionModel) event.getSource();
+			int selectionIdx = lsm.getMinSelectionIndex();
+
+            log.debug("[{}] Reference {} selected.",
+                Thread.currentThread().getName(), selectionIdx);
+
+			if (selectionIdx >= 0) {
+//				final HashDataInput selection = signedReferences
+//						.get(selectionIdx);
+//				final SignedReferencesListDisplayer backToListListener = new SignedReferencesListDisplayer(
+//						signedReferences, backListener, backCommand);
+
+				referenceIndex = selectionIdx;
+				storedBackToListListener = new SignedReferencesListDisplayer(
+						signedReferences, backListener, backCommand);
+				
+//				if (SecureViewerDialog.SUPPORTED_MIME_TYPES.contains(selection
+//						.getMimeType())) {
+//					log.debug("[" + Thread.currentThread().getName()
+//							+ "] scheduling secure viewer dialog");
+//
+//					showMessageDialog(TITLE_SIGNATURE_DATA,
+//							MESSAGE_HASHDATA_VIEWER);
+//
+//					SwingUtilities.invokeLater(new Runnable() {
+//
+//						@Override
+//						public void run() {
+//							try {
+//								showSecureViewer(selection, backToListListener,
+//										null);
+//								// SecureViewerDialog.showSecureViewer(selection,
+//								// messages, fontProvider,
+//								// helpMouseListener.getActionListener(),
+//								// false);
+//							} catch (FontProviderException ex) {
+//								log
+//										.error(
+//												"failed to display secure viewer",
+//												ex);
+//								showErrorDialog(BKUGUIFacade.ERR_VIEWER,
+//										new Object[] { ex.getMessage() },
+//										backToListListener, null);
+//							}
+//
+//						}
+//					});
+//				} else {
+//					log
+//							.debug("["
+//									+ Thread.currentThread().getName()
+//									+ "] mime-type not supported by secure viewer, scheduling save dialog");
+//					showMessageDialog(BKUGUIFacade.TITLE_SIGNATURE_DATA,
+//							BKUGUIFacade.MESSAGE_UNSUPPORTED_MIMETYPE,
+//							new Object[] { selection.getMimeType() });
+//					SecureViewerSaveDialog.showSaveDialog(selection, messages,
+//							backToListListener, null,
+//							(int) (baseFontSize * getResizeFactor()));
+//				}
+			}
+		}
+
+		/**
+		 * ActionListener that returns to signed references list
+		 */
+		private class SignedReferencesListDisplayer implements ActionListener {
+			List<HashDataInput> sr;
+			ActionListener bl;
+			String bc;
+
+			public SignedReferencesListDisplayer(
+					List<HashDataInput> signedReferences,
+					ActionListener backListener, String backCommand) {
+				sr = signedReferences;
+				bl = backListener;
+				bc = backCommand;
+			}
+
+			@Override
+			public void actionPerformed(ActionEvent e) {
+				// log.debug("[" + Thread.currentThread().getName() +
+				// "] displaying signed references list");
+				showSignedReferencesListDialog(sr, bl, bc);
+			}
+		}
+	}
+
+	// //////////////////////////////////////////////////////////////////////////
+	// UTILITY METHODS
+	// //////////////////////////////////////////////////////////////////////////
+
+	private void registerSwitchFocusListener(ActionListener switchFocusListener) {
+		if (switchFocusListener != null) {
+			this.switchFocusKeyListener = new SwitchFocusFocusListener(
+					switchFocusListener);
+
+		} else {
+
+			this.switchFocusKeyListener = new SwitchFocusFocusListener(
+					new ActionListener() {
+
+						@Override
+						public void actionPerformed(ActionEvent e) {
+							log.warn("No switch focus listener registered.");
+						}
+					});
+		}
+	}
+
+	// //////////////////////////////////////////////////////////////////////////
+	// INITIALIZERS (MAY BE OVERRIDDEN BY SUBCLASSES)
+	// //////////////////////////////////////////////////////////////////////////
+
+	/**
+	 * Load applet messages bundle. Note that getBundle looks for classes based
+	 * on the default Locale before it selects the base class!
+	 * 
+	 * Called from constructor. Subclasses may override this method to ensure
+	 * the message bundle is loaded once initButtonSize (called from constructor
+	 * as well) is called. (Only relevant if initButtonSize is overridden as
+	 * well)
+	 * 
+	 * @param locale
+	 */
+	protected void loadMessageBundle(Locale locale) {
+		if (locale != null) {
+			// see [#378] Ignoring post parameter 'locale': bundle resolve-order
+			// not correct?!
+			Locale lang = new Locale(locale.getLanguage().substring(0, 2));
+			log.debug("Loading message bundle for language: {}.", lang.toString());
+			messages = ResourceBundle.getBundle(MESSAGES_BUNDLE, lang);
+		} else {
+			log.debug("Loading default language message bundle.");
+			messages = ResourceBundle.getBundle(MESSAGES_BUNDLE);
+		}
+
+		if (log.isDebugEnabled()) {
+			if (messages.getLocale() == null
+					|| "".equals(messages.getLocale().getLanguage())) {
+				log.info("Fallback to default locale message bundle.");
+			} else {
+				log.info("Applet message bundle loaded for {}.",
+						messages.getLocale());
+			}
+		}
+	}
+
+	protected int initButtonSize() {
+		int bs = 0;
+
+		JButton b = new JButton();
+		b.setText(getMessage(BUTTON_OK));
+		if (b.getPreferredSize().width > bs) {
+			bs = b.getPreferredSize().width;
+		}
+		// need cancel button for message dialog,
+		// even if renderCancelButton == false
+		b.setText(getMessage(BUTTON_CANCEL));
+		if (b.getPreferredSize().width > bs) {
+			bs = b.getPreferredSize().width;
+		}
+		b.setText(getMessage(BUTTON_SIGN));
+		if (b.getPreferredSize().width > bs) {
+			bs = b.getPreferredSize().width;
+		}
+		b.setText(getMessage(BUTTON_BACK));
+		if (b.getPreferredSize().width > bs) {
+			bs = b.getPreferredSize().width;
+		}
+		b.setText(getMessage(BUTTON_SAVE));
+		if (b.getPreferredSize().width > bs) {
+			bs = b.getPreferredSize().width;
+		}
+		return bs;
+	}
 
 	@Override
 	public void getFocusFromBrowser() {
+
+		log.debug("Try setting focus to current component ...");
+		if (primaryFocusHolder == null) {
+			log.debug("No stored component - set focus to contentPanel ...");
+
+			primaryFocusHolder = contentPanel;
+
+		}
+		log.debug("Component to obtain focus: {}.", primaryFocusHolder.getName());
+		primaryFocusHolder.requestFocus();
+
+	}
+
+	protected void updateHelpLabelIcon() {
+
+		if (helpListener.implementsListener()) {
+
+			helpLabel.setIcon(new ImageIcon(getClass().getResource(
+					getHelpLabelResourceName())));
+
+			helpLabel.setBorder(helpLabel.hasFocus() ? helpFocusBorder
+					: BorderFactory.createEmptyBorder());
+		}
+
+	}
+
+	protected String getHelpLabelResourceName() {
+
+		double contentPanelWidth = contentPanel.getSize().getWidth();
+		String resourceName = HELP_IMG;
+
+		if (contentPanelWidth > 300) {
+
+			resourceName = HELP_IMG_L;
+		}
+
+		if (contentPanelWidth > 470) {
+
+			resourceName = HELP_IMG_XL;
+		}
+
+		if (contentPanelWidth > 600) {
+
+			resourceName = HELP_IMG_XXL;
+		}
+
+		return resourceName;
+	}
+
+	protected float getResizeFactor() {
+
+		if (baseWidth == null || baseHeight == null || baseWidth == 0
+				|| baseHeight == 0) {
+
+			// first call - determine base width and height
+			baseWidth = contentPanel.getWidth();
+			baseHeight = contentPanel.getHeight();
+		}
+
+		float factor = (float) contentPanel.getSize().getWidth()
+				/ (float) baseWidth;
+
+		return factor;
+	}
+
+	public void resize() {
+
+		log.debug("Resizing ...");
+		updateHelpLabelIcon();
+
+		float factor = getResizeFactor();
+
+		this.sigDataFocusBorder.setBorderWidthFactor(factor);
+		this.helpFocusBorder.setBorderWidthFactor(factor);
+
+		buttonSize = (int) ((float) baseButtonSize * factor);
+
+		if (renderHeaderPanel) {
+
+			titleLabel.setFont(titleLabel.getFont().deriveFont(
+					(float) ((baseFontSize + 2) * factor)));
+		}
+
+		if (cancelButton != null) {
+
+			cancelButton.setFont(cancelButton.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+		}
+
+		if (pinField != null) {
+			pinField.setFont(pinField.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (infoLabel != null) {
+			infoLabel.setFont(infoLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+		}
+
+		if (pinsizeLabel != null) {
+			pinsizeLabel.setFont(pinsizeLabel.getFont().deriveFont(
+					(float) ((baseFontSize * factor) - 2)));
+
+		}
+
+		if (signPinLabel != null) {
+
+			signPinLabel.setFont(signPinLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (signButton != null) {
+
+			signButton.setFont(signButton.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (cardPinLabel != null) {
+
+			cardPinLabel.setFont(cardPinLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (okButton != null) {
+
+			okButton.setFont(okButton.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (pinLabel != null) {
+
+			pinLabel.setFont(pinLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (pinpadPINField != null) {
+
+			pinpadPINField.setFont(pinpadPINField.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (msgTitleLabel != null) {
+
+			msgTitleLabel.setFont(msgTitleLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (msgLabel != null) {
+
+			msgLabel.setFont(msgLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+
+		if (enterPINButton != null) {
+
+			enterPINButton.setFont(enterPINButton.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
 		
-		// This method puts the focus to the helpLabel as this 
-		// element is supposed to appear in each dialogue. 			
-		helpLabel.requestFocus();
+		if (refIdLabel != null) {
+
+			refIdLabel.setFont(refIdLabel.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+		}
+
+
+		if (backButton != null) {
+
+			backButton.setFont(backButton.getFont().deriveFont(
+					(float) (baseFontSize * factor)));
+
+		}
+		
+		if (hyperlinkRenderer != null) {
+
+			hyperlinkRenderer.setFontSize((int) (baseFontSize * factor));
+		}
+
+		if (hashDataTable != null) {
+
+			hashDataTable.setRowHeight((int) (baseTableRowHeight * factor));
+
+		}
 		
+		if (secureViewer != null && secureViewer.isVisible()) {
+
+			secureViewer.resize(factor);
+		}
+
+		try {
+
+			if (methodToRunAtResize != null) {
+				log.debug("Running required button panel renderer ...");
+				methodToRunAtResize.invoke(this);
+			} else {
+				log.debug("No MethodToRun stored.");
+			}
+
+		} catch (IllegalArgumentException e) {
+			log.error("Cannot invoke rendering method.", e);
+		} catch (IllegalAccessException e) {
+			log.error("Cannot invoke rendering method.", e);
+		} catch (InvocationTargetException e) {
+			log.error("Cannot invoke rendering method.", e);
+		}
+
+		contentPanel.validate();
+
+		log.debug("Resize done.");
+
+	}
+
+	// TODO: Define FocusTraversalPolicies for other GUIs as well, even if
+	// focus order is currently correct by chance for other GUIs
+	public class AdvancedSigPinGUIFocusTraversalPolicy extends
+			FocusTraversalPolicy {
+
+		@Override
+		public Component getComponentAfter(Container container,
+				Component component) {
+
+			if (component.equals(pinField)) {
+
+				if (signButton.isEnabled()) {
+
+					return signButton;
+				} else {
+
+					return cancelButton;
+				}
+			}
+
+			if (component.equals(signButton)) {
+
+				return cancelButton;
+			}
+
+			if (component.equals(cancelButton)) {
+
+				return infoLabel;
+			}
+			if (component.equals(infoLabel)) {
+
+				if (helpLabel != null && helpLabel.isVisible()) {
+
+					return helpLabel;
+				} else {
+
+					return switchFocusDummyLabel;
+				}
+			}
+
+			if (component.equals(helpLabel)) {
+
+				return switchFocusDummyLabel;
+			}
+
+			// should never be the case
+			if (component.equals(switchFocusDummyLabel)) {
+
+				return pinField;
+			}
+
+			// default
+			return pinField;
+		}
+
+		@Override
+		public Component getComponentBefore(Container container,
+				Component component) {
+
+			if (component.equals(pinField)) {
+
+				return switchFocusDummyLabel;
+			}
+
+			if (component.equals(signButton)) {
+
+				return pinField;
+			}
+
+			if (component.equals(cancelButton)) {
+
+				if (signButton != null && signButton.isVisible()
+						&& signButton.isEnabled()) {
+
+					return signButton;
+
+				} else {
+
+					return pinField;
+				}
+			}
+
+			if (component.equals(infoLabel)) {
+
+				return cancelButton;
+			}
+
+			if (component.equals(helpLabel)) {
+
+				return infoLabel;
+			}
+
+			// should never be the case
+			if (component.equals(switchFocusDummyLabel)) {
+
+				if (helpLabel != null && helpLabel.isVisible()) {
+
+					return helpLabel;
+				} else {
+
+					return infoLabel;
+				}
+			}
+
+			// default
+			return pinField;
+		}
+
+		@Override
+		public Component getDefaultComponent(Container container) {
+
+			return pinField;
+		}
+
+		@Override
+		public Component getFirstComponent(Container container) {
+
+			return pinField;
+		}
+
+		@Override
+		public Component getLastComponent(Container container) {
+
+			return switchFocusDummyLabel;
+		}
+	}
+
+	public class AdvancedShowSigDataGUIFocusTraversalPolicy extends
+			FocusTraversalPolicy {
+
+		@Override
+		public Component getComponentAfter(Container container,
+				Component component) {
+
+			if (component.equals(enterPINButton)) {
+
+				return cancelButton;
+			}
+
+			if (component.equals(cancelButton)) {
+
+				return infoLabel;
+			}
+			if (component.equals(infoLabel)) {
+
+				if (helpLabel != null && helpLabel.isVisible()) {
+
+					return helpLabel;
+				} else {
+
+					return switchFocusDummyLabel;
+				}
+			}
+
+			if (component.equals(helpLabel)) {
+
+				return switchFocusDummyLabel;
+			}
+
+			// should never be the case
+			if (component.equals(switchFocusDummyLabel)) {
+
+				return enterPINButton;
+			}
+
+			// default
+			return enterPINButton;
+		}
+
+		@Override
+		public Component getComponentBefore(Container container,
+				Component component) {
+
+			if (component.equals(enterPINButton)) {
+
+				return switchFocusDummyLabel;
+			}
+
+			if (component.equals(cancelButton)) {
+
+				return enterPINButton;
+			}
+
+			if (component.equals(infoLabel)) {
+
+				return cancelButton;
+			}
+
+			if (component.equals(helpLabel)) {
+
+				return infoLabel;
+			}
+
+			// should never be the case
+			if (component.equals(switchFocusDummyLabel)) {
+
+				if (helpLabel != null && helpLabel.isVisible()) {
+
+					return helpLabel;
+				} else {
+
+					return infoLabel;
+				}
+			}
+
+			// default
+			return enterPINButton;
+		}
+
+		@Override
+		public Component getDefaultComponent(Container container) {
+
+			return enterPINButton;
+		}
+
+		@Override
+		public Component getFirstComponent(Container container) {
+
+			return enterPINButton;
+		}
+
+		@Override
+		public Component getLastComponent(Container container) {
+
+			return switchFocusDummyLabel;
+		}
 	}
 }
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUIcons.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUIcons.java
index 92d6897b..b0e43291 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUIcons.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/BKUIcons.java
@@ -22,8 +22,8 @@ import java.io.IOException;
 import java.net.URL;
 import java.util.ArrayList;
 import javax.imageio.ImageIO;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  *
@@ -31,24 +31,23 @@ import org.apache.commons.logging.LogFactory;
  */
 public class BKUIcons {
 
-  protected static final Log log = LogFactory.getLog(BKUIcons.class);
-
-  /** 16x16, 24x24, 32x32, 48x48, 128x128 pixels */
+  /** 128x128, 48x48, 32x32, 24x24, 16x16 pixels */
   public static final ArrayList<Image> icons = new ArrayList<Image>();
 
   static {
     String[] iconResources = new String[] {
-      "/at/gv/egiz/bku/gui/chip16.png",
-      "/at/gv/egiz/bku/gui/chip24.png",
-      "/at/gv/egiz/bku/gui/chip32.png",
+      "/at/gv/egiz/bku/gui/chip128.png",
       "/at/gv/egiz/bku/gui/chip48.png",
-      "/at/gv/egiz/bku/gui/chip128.png" };
+      "/at/gv/egiz/bku/gui/chip32.png",
+      "/at/gv/egiz/bku/gui/chip24.png",
+      "/at/gv/egiz/bku/gui/chip16.png"};
     for (String ir : iconResources) {
       URL resource = BKUIcons.class.getResource(ir);
       if (ir != null) {
         try {
           icons.add(ImageIO.read(resource));
         } catch (IOException ex) {
+          Logger log = LoggerFactory.getLogger(BKUIcons.class);
           log.warn("failed to load mocca icon " + ir, ex);
         }
       }
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/DeafHelpListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/DeafHelpListener.java
new file mode 100644
index 00000000..a4ce79b0
--- /dev/null
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/DeafHelpListener.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package at.gv.egiz.bku.gui;
+
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+import java.util.Locale;
+
+public class DeafHelpListener extends HelpListener {
+
+  // localization in helpListener (pass message bundle, getLocale, add language to helpContext) or outside?
+  public DeafHelpListener(String helpURL, Locale locale) {
+    super(helpURL, locale);
+  }
+
+  @Override
+  public boolean implementsListener() {
+    return false;
+  }
+
+  @Override
+  public void mouseClicked(MouseEvent arg0) {
+  }
+
+  @Override
+  public void keyPressed(KeyEvent arg0) {
+  }
+
+  @Override
+  public void mousePressed(MouseEvent e) {
+  }
+
+  @Override
+  public void mouseReleased(MouseEvent e) {
+  }
+
+  @Override
+  public void mouseEntered(MouseEvent e) {
+  }
+
+  @Override
+  public void mouseExited(MouseEvent e) {
+  }
+
+  @Override
+  public void keyTyped(KeyEvent e) {
+  }
+
+  @Override
+  public void keyReleased(KeyEvent e) {
+  }
+
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/DefaultHelpListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/DefaultHelpListener.java
deleted file mode 100644
index 032c8fe5..00000000
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/DefaultHelpListener.java
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright 2008 Federal Chancellery Austria and
- * Graz University of Technology
- * 
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package at.gv.egiz.bku.gui;
-
-import java.applet.AppletContext;
-import java.net.URL;
-import java.util.Locale;
-import javax.swing.SwingUtilities;
-
-/**
- * 
- * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at>
- */
-public class DefaultHelpListener extends AbstractHelpListener {
-
-  /**
-   * applet context to open external links in help pages,
-   * if null, no external links will be opened
-   */
-  protected AppletContext ctx;
-
-  /**
-   * 
-   * @param ctx open external links via applet context
-   * @param helpURL
-   * @param locale
-   */
-  public DefaultHelpListener(AppletContext ctx, URL helpURL, Locale locale) {
-    super(helpURL, locale);
-    this.ctx = ctx;
-  }
-
-  /**
-   * external links in help document are not opened
-   * @param helpURL
-   * @param locale
-   */
-  public DefaultHelpListener(URL helpURL, Locale locale) {
-    super(helpURL, locale);
-    this.ctx = null;
-  }
-
-  /**
-   * blocks until help viewer returns (is closed)
-   * @param helpURL
-   * @param helpTopic ignored
-   */
-  @Override
-  public void showDocument(final URL helpURL, final String helpTopic) {
-      log.debug("schedule help dialog");
-
-      SwingUtilities.invokeLater(new Runnable() {
-
-        @Override
-        public void run() {
-
-          log.debug("show help dialog");
-
-          if (ctx == null) {
-            HelpViewer.showHelpDialog(helpURL, messages);
-          } else {
-            HelpViewer.showHelpDialog(ctx, helpURL, messages);
-          }
-        }
-      });
-  }
-}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/FocusBorder.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/FocusBorder.java
new file mode 100644
index 00000000..2c25d46b
--- /dev/null
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/FocusBorder.java
@@ -0,0 +1,69 @@
+package at.gv.egiz.bku.gui;
+
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Insets;
+import java.awt.geom.Rectangle2D;
+
+import javax.swing.border.Border;
+
+
+public class FocusBorder implements Border {
+
+	private static final Color DEFAULT_COLOR = Color.BLACK;
+	
+	private Color color;
+	private float borderWidthFactor;
+
+	public FocusBorder() {
+
+		this.color = DEFAULT_COLOR;
+		this.borderWidthFactor = 1.0f;
+	}
+	
+	public FocusBorder(Color borderColor) {
+
+		this.color = borderColor;
+		this.borderWidthFactor = 1.0f;
+	}
+
+	@Override
+	public Insets getBorderInsets(Component c) {
+
+		return new Insets(3, 3, 6, 6);
+	}
+
+	@Override
+	public boolean isBorderOpaque() {
+
+		return true;
+	}
+
+	@Override
+	public void paintBorder(Component c, Graphics g, int x, int y, int width,
+			int height) {
+		Graphics2D g2 = (Graphics2D) g;
+	
+		g2.setPaint(color);
+		float[] dash1 = { 2.0f };
+	
+		g2.setStroke(new BasicStroke(1.0f * borderWidthFactor, BasicStroke.CAP_BUTT,
+				BasicStroke.JOIN_MITER, 10.0f, dash1, 0.0f));
+
+		g2.draw(new Rectangle2D.Double(x + 1, y + 1, width - 6, height - 6));
+
+	}
+
+	public void setColor(Color color) {
+		this.color = color;
+	}
+
+	public void setBorderWidthFactor(float borderWidthFactor) {
+				
+		this.borderWidthFactor = borderWidthFactor;
+	}
+
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HashDataTableModel.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HashDataTableModel.java
index 70842102..320c92a9 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HashDataTableModel.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HashDataTableModel.java
@@ -19,8 +19,6 @@ package at.gv.egiz.bku.gui;
 import at.gv.egiz.stal.HashDataInput;
 import java.util.List;
 import javax.swing.table.DefaultTableModel;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 
 /**
  * 
@@ -28,10 +26,10 @@ import org.apache.commons.logging.LogFactory;
  */
 class HashDataTableModel extends DefaultTableModel {
 
-  protected static final Log log = LogFactory.getLog(HashDataTableModel.class);
-  
+  private static final long serialVersionUID = 1L;
+
   /** HashDataInput in first column, register hyperlinkrenderer only here */
-  protected Class[] types;
+  protected Class<?>[] types;
   protected List<HashDataInput> hashDataInputs;
 
   public HashDataTableModel(List<HashDataInput> hashDataInputs, boolean twoColLayout) {
@@ -52,7 +50,7 @@ class HashDataTableModel extends DefaultTableModel {
   }
 
   @Override
-  public Class getColumnClass(int columnIndex) {
+  public Class<?> getColumnClass(int columnIndex) {
     return types[columnIndex];
   }
 
@@ -60,4 +58,4 @@ class HashDataTableModel extends DefaultTableModel {
   public boolean isCellEditable(int rowIndex, int columnIndex) {
     return false;
   }
-}
\ No newline at end of file
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpKeyListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpKeyListener.java
deleted file mode 100644
index 4ca20f7e..00000000
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpKeyListener.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package at.gv.egiz.bku.gui;

-

-import java.awt.event.ActionEvent;

-import java.awt.event.ActionListener;

-import java.awt.event.KeyAdapter;

-import java.awt.event.KeyEvent;

-

-import org.apache.commons.logging.Log;

-import org.apache.commons.logging.LogFactory;

-

-/**

- * 

- * @author Thomas Zefferer <thomas.zefferer@iaik.tugraz.at>

- */

-public class HelpKeyListener extends KeyAdapter {

-

-	  protected static final Log log = LogFactory.getLog(HelpKeyListener.class);

-	  

-	  protected ActionListener helpListener;

-	  protected String locale;

-	  protected String topic;

-

-	  public HelpKeyListener(ActionListener externalHelpListener) {

-	    super();

-	    this.helpListener = externalHelpListener;

-	  }

-

-	  public void setHelpTopic(String topic) {

-	    log.trace("setting help topic: " + topic);

-	    this.topic = topic;

-	  }

-	  

-	  public ActionListener getActionListener() {

-	    return helpListener;

-	  }

-

-	  @Override

-	  public void keyPressed(KeyEvent arg0) {

-		  

-		  if(arg0.getKeyCode() == KeyEvent.VK_ENTER) { 

-			  ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, topic);

-			  helpListener.actionPerformed(e);

-		  }

-	  }

-	

-}

diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpListener.java
new file mode 100644
index 00000000..dc597656
--- /dev/null
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpListener.java
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package at.gv.egiz.bku.gui;
+
+import java.awt.event.KeyListener;
+import java.awt.event.MouseListener;
+import java.util.Locale;
+import java.util.ResourceBundle;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public abstract class HelpListener implements MouseListener, KeyListener, HelpURLProvider {
+
+  public static final String MESSAGE_BUNDLE = "at/gv/egiz/bku/gui/Messages";
+
+  private final Logger log = LoggerFactory.getLogger(HelpListener.class);
+  private String helpURL;
+  protected String helpTopic;
+  protected ResourceBundle messageBundle;
+
+  // localization in helpListener (pass message bundle, getLocale, add language to helpContext) or outside?
+  public HelpListener(String helpURL, Locale locale) {
+//    this.codebase = codebase;
+    this.helpURL = helpURL;
+
+    if (locale != null) {
+      log.trace("Check for support of requested help locale {}.", locale.getLanguage().substring(0,2));
+      messageBundle = ResourceBundle.getBundle(MESSAGE_BUNDLE,
+              new Locale(locale.getLanguage().substring(0, 2)));
+    } else {
+      messageBundle = ResourceBundle.getBundle(MESSAGE_BUNDLE);
+    }
+    if (!"".equals(messageBundle.getLocale().getLanguage())) {
+      log.trace("Using help locale '{}'.", messageBundle.getLocale().getLanguage().substring(0,2));
+      helpURL += messageBundle.getLocale().getLanguage().substring(0,2) + '/';
+    } else {
+      log.trace("Using help locale 'default'.");
+    }
+    
+    log.debug("Setting help context to {}.", helpURL);
+  }
+
+  @Override
+  public synchronized void setHelpTopic(String topic) {
+    log.trace("Setting help topic: {}.", topic);
+    helpTopic = topic;
+  }
+
+  @Override
+  public synchronized String getHelpURL() {
+    if (helpTopic == null) {
+      log.debug("No help topic set, return index.");
+      return helpURL + "index.html";
+    }
+    String url = helpURL + helpTopic + ".html";
+    log.debug("Return help topic: {}.", url);
+    return url;
+  }
+
+  /**
+   * By default, HelpListener cannot handle action events and acts as (deaf) help context only.
+   * Subclasses may add listener functionality.
+   *
+   * Whether a listener is available so that GUI elements may be included to provide context help.
+   * (whether a help icon shall be included)
+   * @return true if this HelpListener implements the Mouse/KeyListeners 
+   */
+  public abstract boolean implementsListener();
+  
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpMouseListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpMouseListener.java
deleted file mode 100644
index b7bbe971..00000000
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpMouseListener.java
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright 2008 Federal Chancellery Austria and
- * Graz University of Technology
- * 
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package at.gv.egiz.bku.gui;
-
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
-
-public class HelpMouseListener extends MouseAdapter {
-
-  protected static final Log log = LogFactory.getLog(HelpMouseListener.class);
-  
-  protected ActionListener helpListener;
-  protected String locale;
-  protected String topic;
-
-  public HelpMouseListener(ActionListener externalHelpListener) {
-    super();
-    this.helpListener = externalHelpListener;
-  }
-
-  public void setHelpTopic(String topic) {
-    log.trace("setting help topic: " + topic);
-    this.topic = topic;
-  }
-  
-  public ActionListener getActionListener() {
-    return helpListener;
-  }
-
-  @Override
-  public void mouseClicked(MouseEvent arg0) {
-    ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, topic);
-    helpListener.actionPerformed(e);
-  }
-}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpURLProvider.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpURLProvider.java
new file mode 100644
index 00000000..f310705c
--- /dev/null
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpURLProvider.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+package at.gv.egiz.bku.gui;
+
+/**
+ * Make current context dependent help topic available (outside the applet).
+ * Updated by the GUI whenever the current help topic changes.
+ * 
+ * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at>
+ */
+public interface HelpURLProvider {
+
+  void setHelpTopic(String helpTopic);
+
+  String getHelpURL();
+
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpViewer.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpViewer.java
index 0f887f78..bfd797e8 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpViewer.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HelpViewer.java
@@ -39,8 +39,8 @@ import javax.swing.LayoutStyle;
 import javax.swing.SwingUtilities;
 import javax.swing.event.HyperlinkEvent;
 import javax.swing.event.HyperlinkListener;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  *
@@ -49,7 +49,10 @@ import org.apache.commons.logging.LogFactory;
 public class HelpViewer extends JDialog
         implements ActionListener {
 
-  protected static final Log log = LogFactory.getLog(HelpViewer.class);
+  private static final long serialVersionUID = 1L;
+
+  private final Logger log = LoggerFactory.getLogger(HelpViewer.class);
+  
   private static HelpViewer dialog;
   protected ResourceBundle messages;
   protected AppletContext ctx;
@@ -128,7 +131,7 @@ public class HelpViewer extends JDialog
   }
 
   private JPanel createViewerPanel(URL helpURL) {  //String viewerLabelText, 
-    log.debug("viewer dialog: " + helpURL.toString());
+    log.debug("Viewer dialog: {}.", helpURL.toString());
 
     final JEditorPane viewer = new JEditorPane();
     viewer.setEditable(false);
@@ -146,7 +149,7 @@ public class HelpViewer extends JDialog
           final URL url = e.getURL();
           if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
             if (ctx != null) {
-              log.debug("open external link in help viewer: " + url);
+              log.debug("Open external link in help viewer: {}.", url);
               ctx.showDocument(url, "_blank");
             } else {
               SwingUtilities.invokeLater(new Runnable() {
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HyperlinkRenderer.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HyperlinkRenderer.java
index 6af22815..9552bdde 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HyperlinkRenderer.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/HyperlinkRenderer.java
@@ -26,10 +26,14 @@ import javax.swing.table.DefaultTableCellRenderer;
  */
 public class HyperlinkRenderer extends DefaultTableCellRenderer {
 
+  private static final long serialVersionUID = 1L;
+  
   protected boolean renderReferenceId;
+  protected int fontSize;
 
   public HyperlinkRenderer(boolean renderReferenceId) {
     this.renderReferenceId = renderReferenceId;
+    this.fontSize = super.getFont().getSize();
   }
 
   /**
@@ -49,6 +53,13 @@ public class HyperlinkRenderer extends DefaultTableCellRenderer {
       }
     }
     super.setText("<html><u>" + hrefText + "</u></html>");
+    super.setFont(super.getFont().deriveFont((float) (fontSize)));
     setForeground(BKUGUIFacade.HYPERLINK_COLOR);
   }
+  
+	public void setFontSize(int fontSize) {
+		
+		this.fontSize = fontSize;
+	}
+  
 }
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ImagePanel.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ImagePanel.java
index 6a738acb..f18bef6b 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ImagePanel.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ImagePanel.java
@@ -30,6 +30,8 @@ import javax.swing.JPanel;
  */
 public class ImagePanel extends JPanel {
 
+  private static final long serialVersionUID = 1L;
+  
   protected Image backgroundImg;
 
   public ImagePanel(URL background) {
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SecureViewerDialog.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SecureViewerDialog.java
index b0c8ecd4..f4942a61 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SecureViewerDialog.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SecureViewerDialog.java
@@ -28,10 +28,6 @@ import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.awt.event.FocusAdapter;
 import java.awt.event.FocusEvent;
-import java.awt.event.KeyAdapter;
-import java.awt.event.KeyEvent;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseEvent;
 import java.awt.event.WindowAdapter;
 import java.awt.event.WindowEvent;
 import java.io.BufferedReader;
@@ -56,8 +52,8 @@ import javax.swing.text.Document;
 import javax.swing.text.EditorKit;
 import javax.swing.text.StyledEditorKit;
 import javax.swing.text.html.HTMLEditorKit;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  *
@@ -65,7 +61,9 @@ import org.apache.commons.logging.LogFactory;
  */
 public class SecureViewerDialog extends JDialog {
 
-  /** don't import BKUFonts in order not to load BKUFonts.jar
+	private static final long serialVersionUID = 1L;
+
+/** don't import BKUFonts in order not to load BKUFonts.jar
    * BKUApplet includes BKUFonts as runtime dependency only, the jar is copied to the applet dir in BKUOnline with dependency-plugin
    * BKUViewer has compile dependency BKUFonts, transitive in BKUOnline and BKULocal
    */
@@ -77,14 +75,25 @@ public class SecureViewerDialog extends JDialog {
     SUPPORTED_MIME_TYPES.add("application/xhtml+xml");
     SUPPORTED_MIME_TYPES.add("text/html");
   }
-  protected static final Log log = LogFactory.getLog(SecureViewerDialog.class);
-//  private static SecureViewerDialog dialog;
+  private final Logger log = LoggerFactory.getLogger(SecureViewerDialog.class);
   protected ResourceBundle messages;
   protected JEditorPane viewer;
   protected JLabel viewerLabel;
   protected JScrollPane scrollPane;
-  protected HashDataInput content; //remember for save dialog
+  protected HashDataInput content; //remember for save dialog and for resizing
   protected FontProvider fontProvider;
+  protected HelpListener helpListener;
+  
+  protected JButton closeButton;
+  protected JButton saveButton;
+  
+  protected int baseFontSize;
+  protected int baseButtonSize;
+  
+  protected float resizeFactor;
+  
+  protected ActionListener closeListener;
+  protected String closeCommand;
 
   /**
    * Create and display a modal SecureViewer dialog.
@@ -95,14 +104,25 @@ public class SecureViewerDialog extends JDialog {
    */
   public SecureViewerDialog(Frame owner, ResourceBundle messages,
           ActionListener closeListener, String closeCommand,
-          FontProvider fontProvider, ActionListener helpListener) {
-    super(owner, messages.getString(BKUGUIFacade.WINDOWTITLE_VIEWER), true);
+          FontProvider fontProvider,
+          HelpListener helpListener, float resizeFactor) {
+    super(owner, messages.getString(BKUGUIFacade.WINDOWTITLE_VIEWER), false);
     this.setIconImages(BKUIcons.icons);
     this.messages = messages;
     this.fontProvider = fontProvider;
-
+    this.helpListener = helpListener;
+    
+    this.baseFontSize = new JLabel().getFont().getSize();
+    
+    this.resizeFactor = 1.0f;
+    this.closeListener = closeListener;
+    this.closeCommand = closeCommand;
+    
+    this.resizeFactor = resizeFactor;
+    
+    
     initContentPane(VIEWER_DIMENSION,
-            createViewerPanel(helpListener),
+            createViewerPanel(),
             createButtonPanel(closeListener, closeCommand));
 
     // also leave defaultWindowClosing HIDE_ON_CLOSE
@@ -115,8 +135,28 @@ public class SecureViewerDialog extends JDialog {
     } else {
       setLocationByPlatform(true);
     }
+    
+    
   }
 
+  public void resize(float resizeFactor) {
+	  
+	  log.debug("Resizing secure viewer ...");
+	  this.resizeFactor = resizeFactor;  
+	  
+	  getContentPane().removeAll();
+	  
+	  initContentPane(VIEWER_DIMENSION,
+	            createViewerPanel(),
+	            createButtonPanel(closeListener, closeCommand));
+	  
+	  this.setContent(content);
+	  
+	  getContentPane().validate();
+	  
+	  
+  }
+  
   private void initContentPane(Dimension preferredSize,
           JPanel viewerPanel, JPanel buttonPanel) {
     Container contentPane = getContentPane();
@@ -135,9 +175,10 @@ public class SecureViewerDialog extends JDialog {
   /**
    * @param helpListener may be null
    */
-  private JPanel createViewerPanel(final ActionListener helpListener) {
+  private JPanel createViewerPanel() {
     viewer = new JEditorPane();
     viewer.setEditable(false);
+    
     viewer.putClientProperty(JEditorPane.HONOR_DISPLAY_PROPERTIES, Boolean.TRUE);
     
     scrollPane = new JScrollPane();
@@ -156,30 +197,13 @@ public class SecureViewerDialog extends JDialog {
     infoHorizontal.addComponent(viewerLabel);
     infoVertical.addComponent(viewerLabel);
 
-    if (helpListener != null) {
+    if (helpListener.implementsListener()) {
       final JLabel helpLabel = new JLabel();
       helpLabel.setFocusable(true);
       helpLabel.setIcon(new ImageIcon(getClass().getResource(BKUGUIFacade.HELP_IMG)));
       helpLabel.getAccessibleContext().setAccessibleName(messages.getString(BKUGUIFacade.ALT_HELP));
-      helpLabel.addMouseListener(new MouseAdapter() {
-
-        @Override
-        public void mouseClicked(MouseEvent arg0) {
-          ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, BKUGUIFacade.HELP_HASHDATAVIEWER);
-          helpListener.actionPerformed(e);
-        }
-      });
-      helpLabel.addKeyListener(new KeyAdapter() {
-
-        @Override
-        public void keyPressed(KeyEvent arg0) {
-
-          if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {
-            ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, BKUGUIFacade.HELP_HASHDATAVIEWER);
-            helpListener.actionPerformed(e);
-          }
-        }
-      });
+      helpLabel.addMouseListener(helpListener);
+      helpLabel.addKeyListener(helpListener);
 
       helpLabel.addFocusListener(new FocusAdapter() {
 
@@ -220,7 +244,9 @@ public class SecureViewerDialog extends JDialog {
    */
   public void setContent(HashDataInput hashDataInput) { //throws FontProviderException {
 
-    log.debug("[" + Thread.currentThread().getName() + "] set viewer content");
+    log.debug("[{}] set viewer content.", Thread.currentThread().getName());
+
+    helpListener.setHelpTopic(BKUGUIFacade.HELP_HASHDATAVIEWER);
     
     this.content = null;
     viewer.setText(null);
@@ -229,7 +255,7 @@ public class SecureViewerDialog extends JDialog {
     if (mimeType == null) {
       mimeType = "text/plain";
     }
-    log.debug("secure viewer mime type: " + mimeType);
+    log.debug("Secure viewer mime type: {}.", mimeType);
     // loads editorkit for text/plain if unrecognized
     viewer.setContentType(mimeType);
 
@@ -237,11 +263,11 @@ public class SecureViewerDialog extends JDialog {
       
       if ("text/plain".equals(mimeType)) {
         viewer.setEditorKit(new StyledEditorKit());
-        viewer.setFont(fontProvider.getFont().deriveFont(Font.PLAIN, viewer.getFont().getSize()));
+        viewer.setFont(fontProvider.getFont().deriveFont(Font.PLAIN, viewer.getFont().getSize() * resizeFactor));
       } else if ("application/xhtml+xml".equals(mimeType)) {
         viewer.setEditorKit(new HTMLEditorKit());
         //reset font if fontprovider font was set before (TODO also html font from fontprovider)
-        viewer.setFont(new Font("Dialog", Font.PLAIN, viewer.getFont().getSize())); //UIManager.getFont("Label.font"));
+        viewer.setFont(new Font("Dialog", Font.PLAIN, (int)(viewer.getFont().getSize() * resizeFactor))); //UIManager.getFont("Label.font"));
       }
 
       EditorKit editorKit = viewer.getEditorKit();
@@ -249,7 +275,7 @@ public class SecureViewerDialog extends JDialog {
   //    document.putProperty("IgnoreCharsetDirective", new Boolean(true));
 
       Charset cs = (hashDataInput.getEncoding() == null) ? Charset.forName("UTF-8") : Charset.forName(hashDataInput.getEncoding());
-      log.debug("secure viewer encoding: " + cs.toString());
+      log.debug("Secure viewer encoding: {}.", cs.toString());
 
       InputStreamReader isr = new InputStreamReader(hashDataInput.getHashDataInput(), cs);
       Reader contentReader = new BufferedReader(isr);
@@ -270,6 +296,11 @@ public class SecureViewerDialog extends JDialog {
     }
     viewer.setCaretPosition(0);
 
+    if (viewer.getText() != null) {
+		viewer.getAccessibleContext().setAccessibleDescription(
+				viewer.getText());
+	}
+    
     scrollPane.setViewportView(viewer);
     scrollPane.setPreferredSize(viewer.getPreferredSize());
     scrollPane.setAlignmentX(LEFT_ALIGNMENT);
@@ -280,21 +311,33 @@ public class SecureViewerDialog extends JDialog {
       viewerLabel.setText("");
     }
 
-    log.debug("VIEWER FONT: " + viewer.getFont());
+    viewer.setFocusable(Boolean.TRUE);
+    
+    log.debug("VIEWER FONT: {}.", viewer.getFont());
     setVisible(true);
     toFront();
+    
+    viewer.requestFocus();
+    
   }
 
   private JPanel createButtonPanel(ActionListener closeListener, String closeCommand) {
-    JButton closeButton = new JButton();
+
+	closeButton = new JButton();
+	
     closeButton.setText(messages.getString(BKUGUIFacade.BUTTON_CLOSE));
     closeButton.setActionCommand(closeCommand);
     closeButton.addActionListener(new CloseButtonListener(closeListener));
-
-    JButton saveButton = new JButton();
+	closeButton.setFont(closeButton.getFont().deriveFont(
+				(float) (baseFontSize * resizeFactor)));
+ 
+    saveButton = new JButton();
     saveButton.setText(messages.getString(BKUGUIFacade.BUTTON_SAVE));
     saveButton.addActionListener(new SaveButtonListener());
+    saveButton.setFont(saveButton.getFont().deriveFont(
+			(float) (baseFontSize * resizeFactor)));
 
+    
     int buttonSize = closeButton.getPreferredSize().width;
     if (saveButton.getPreferredSize().width > buttonSize) {
       buttonSize = saveButton.getPreferredSize().width;
@@ -324,7 +367,7 @@ public class SecureViewerDialog extends JDialog {
 
     @Override
     public void windowClosing(WindowEvent e) {
-      log.trace("[" + Thread.currentThread().getName() + "] closing secure viewer");
+      log.trace("[{}] closing secure viewer.", Thread.currentThread().getName());
       setVisible(false);
       if (closeListener != null) {
         closeListener.actionPerformed(new ActionEvent(e.getSource(), e.getID(), closeCommand));
@@ -342,7 +385,7 @@ public class SecureViewerDialog extends JDialog {
 
     @Override
     public void actionPerformed(ActionEvent e) {
-      log.trace("[" + Thread.currentThread().getName() + "] closing secure viewer");
+      log.trace("[{}] closing secure viewer.", Thread.currentThread().getName());
       setVisible(false);
       if (closeListener != null) {
         closeListener.actionPerformed(e);
@@ -354,8 +397,8 @@ public class SecureViewerDialog extends JDialog {
 
     @Override
     public void actionPerformed(ActionEvent e) {
-      log.trace("[" + Thread.currentThread().getName() + "] display secure viewer save dialog");
-      SecureViewerSaveDialog.showSaveDialog(content, messages, null, null);
+      log.trace("[{}] display secure viewer save dialog.", Thread.currentThread().getName());
+      SecureViewerSaveDialog.showSaveDialog(content, messages, null, null, closeButton.getFont().getSize());
     }
   }
 }
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusFocusListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusFocusListener.java
index 06e37a89..66679291 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusFocusListener.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusFocusListener.java
@@ -1,38 +1,44 @@
-package at.gv.egiz.bku.gui;

-

-import java.awt.event.ActionEvent;

-import java.awt.event.ActionListener;

-import java.awt.event.FocusAdapter;

-import java.awt.event.FocusEvent;

-

-import org.apache.commons.logging.Log;

-import org.apache.commons.logging.LogFactory;

-

-/**

- * 

- * @author Thomas Zefferer <thomas.zefferer@iaik.tugraz.at>

- */

-public class SwitchFocusFocusListener extends FocusAdapter {

-

-	  protected static final Log log = LogFactory.getLog(SwitchFocusFocusListener.class);

-	  

-	  protected ActionListener swichFocusListener;

-

-	  public SwitchFocusFocusListener(ActionListener externalSwitchFocusListener) {

-	    super();

-	    this.swichFocusListener = externalSwitchFocusListener;

-	  }

-	  

-	  public ActionListener getActionListener() {

-	    return swichFocusListener;

-	  }

-	  

-	  @Override

-	  public void focusGained(FocusEvent arg0) {

-		  

-		  ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, null);

-		  swichFocusListener.actionPerformed(e);

-	  }

-	

-	

-}

+package at.gv.egiz.bku.gui;
+
+import java.awt.Component;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.FocusAdapter;
+import java.awt.event.FocusEvent;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 
+ * @author Thomas Zefferer <thomas.zefferer@iaik.tugraz.at>
+ */
+public class SwitchFocusFocusListener extends FocusAdapter {
+
+	  private final Logger log = LoggerFactory.getLogger(SwitchFocusFocusListener.class);
+	  
+	  protected ActionListener swichFocusListener;
+
+	  public SwitchFocusFocusListener(ActionListener externalSwitchFocusListener) {
+	    super();
+	    this.swichFocusListener = externalSwitchFocusListener;
+	  }
+	  
+	  public ActionListener getActionListener() {
+	    return swichFocusListener;
+	  }
+	  
+	  @Override
+	  public void focusGained(FocusEvent arg0) {
+		  
+		  log.debug("SwitchFocusFocusListener detected focusGained event!");
+		  Component comp = arg0.getComponent();
+		  log.debug("Component that caused event: {}.", comp.getName());	
+		  comp.transferFocus();
+		  
+		  ActionEvent e = new ActionEvent(this, ActionEvent.ACTION_PERFORMED, null);
+		  swichFocusListener.actionPerformed(e);
+	  }
+	
+	
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusListener.java
index 48b641e2..171d24b8 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusListener.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/SwitchFocusListener.java
@@ -1,44 +1,54 @@
-package at.gv.egiz.bku.gui;

-

-import java.applet.AppletContext;

-import java.awt.event.ActionEvent;

-import java.awt.event.ActionListener;

-import java.net.MalformedURLException;

-import java.net.URL;

-

-import org.apache.commons.logging.Log;

-import org.apache.commons.logging.LogFactory;

-

-/**

- * 

- * @author Thomas Zefferer <thomas.zefferer@iaik.tugraz.at>

- */

-public class SwitchFocusListener implements ActionListener {

-

-	protected final static Log log = LogFactory.getLog(SwitchFocusListener.class);

-	

-	protected AppletContext ctx;

-	protected String javascriptFunction;

-	

-	  public SwitchFocusListener(AppletContext ctx, String javascriptFunction) {

-		    

-		    this.ctx = ctx;

-		    this.javascriptFunction = javascriptFunction;

-		  }

-	

-	@Override

-	public void actionPerformed(ActionEvent e) {

-		

-	    try {

-	        ctx.showDocument

-	          (new URL("javascript:" + javascriptFunction));

-	        }

-	      catch (MalformedURLException me) {

-

-	    	  log.warn("Unable to call external javascript function.", me);

-	      }

-		

-

-	}

-

-}

+package at.gv.egiz.bku.gui;
+
+import java.applet.AppletContext;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.net.MalformedURLException;
+import java.net.URL;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 
+ * @author Thomas Zefferer <thomas.zefferer@iaik.tugraz.at>
+ */
+public class SwitchFocusListener implements ActionListener {
+
+	private final Logger log = LoggerFactory.getLogger(SwitchFocusListener.class);
+	
+	protected String functionName;
+	protected AppletContext ctx;
+	protected String javascriptFunction;
+	
+	  public SwitchFocusListener(AppletContext ctx, String javascriptFunctionName) {
+		    
+		    this.ctx = ctx;
+		    this.functionName = javascriptFunctionName;
+		    buildJSFunction();
+		  }
+	
+	@Override
+	public void actionPerformed(ActionEvent e) {
+		
+		log.debug("SwitchFocusListener fires!");
+		
+	    try {
+	        ctx.showDocument
+	          (new URL("javascript:" + javascriptFunction));
+	        }
+	      catch (MalformedURLException me) { 
+	    	  
+	    	  log.warn("Unable to call external javascript function.", me);
+	      }
+		
+
+	}
+
+	protected void buildJSFunction() {
+		
+		this.javascriptFunction =  functionName + "()";
+		
+	}
+	
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ViewerHelpListener.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ViewerHelpListener.java
new file mode 100644
index 00000000..4860756d
--- /dev/null
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/ViewerHelpListener.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package at.gv.egiz.bku.gui;
+
+import java.applet.AppletContext;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseEvent;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Locale;
+import javax.swing.SwingUtilities;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ViewerHelpListener extends HelpListener {
+  
+  private final Logger log = LoggerFactory.getLogger(ViewerHelpListener.class);
+
+  protected AppletContext appletCtx;
+
+  public ViewerHelpListener(String helpURL, Locale locale) {
+    super(helpURL, locale);
+  }
+
+  public ViewerHelpListener(AppletContext ctx, String helpURL, Locale locale) {
+    super(helpURL, locale);
+    this.appletCtx = ctx;
+  }
+
+  protected void displayHelpViewer(final String helpURL) {
+    log.debug("Schedule help viewer.");
+
+    SwingUtilities.invokeLater(new Runnable() {
+
+      @Override
+      public void run() {
+
+        log.debug("Show help viewer for {}.", helpURL);
+        try {
+          HelpViewer.showHelpDialog(appletCtx, new URL(helpURL), messageBundle);
+        } catch (MalformedURLException ex) {
+          log.error("Failed to construct help context URL.", ex);
+        }
+      }
+    });
+  }
+
+  @Override
+  public boolean implementsListener() {
+    return true;
+  }
+
+  @Override
+  public void mouseClicked(MouseEvent arg0) {
+    displayHelpViewer(getHelpURL());
+  }
+
+  @Override
+  public void keyPressed(KeyEvent arg0) {
+    displayHelpViewer(getHelpURL());
+  }
+
+  @Override
+  public void mousePressed(MouseEvent e) {
+  }
+
+  @Override
+  public void mouseReleased(MouseEvent e) {
+  }
+
+  @Override
+  public void mouseEntered(MouseEvent e) {
+  }
+
+  @Override
+  public void mouseExited(MouseEvent e) {
+  }
+
+  @Override
+  public void keyTyped(KeyEvent e) {
+  }
+
+  @Override
+  public void keyReleased(KeyEvent e) {
+  }
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/WindowCloseAdapter.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/WindowCloseAdapter.java
new file mode 100644
index 00000000..ad798aed
--- /dev/null
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/WindowCloseAdapter.java
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package at.gv.egiz.bku.gui;
+
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ *
+ * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at>
+ */
+public class WindowCloseAdapter extends WindowAdapter {
+
+  private final Logger log = LoggerFactory.getLogger(WindowCloseAdapter.class);
+
+  protected ActionListener closeListener;
+  protected String closeCommand;
+
+  void registerListener(ActionListener closeListener, String closeCommand) {
+    log.debug("Register close listener for action command {}.", closeCommand);
+    this.closeListener = closeListener;
+    this.closeCommand = closeCommand;
+  }
+
+  @Override
+  public void windowClosing(WindowEvent e) {
+    log.debug("Received window closing event: {}.", e.paramString());
+
+    if (closeListener != null) {
+      log.debug("Notifying closeListener ...");
+      closeListener.actionPerformed(new ActionEvent(e.getSource(), e.getID(), closeCommand));
+    }
+  }
+
+
+}
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/html/RestrictedHTMLEditorKit.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/html/RestrictedHTMLEditorKit.java
index 680bf1a4..2ae8f87e 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/html/RestrictedHTMLEditorKit.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/html/RestrictedHTMLEditorKit.java
@@ -29,7 +29,8 @@ import javax.swing.text.html.HTMLEditorKit;
  */
 public class RestrictedHTMLEditorKit extends HTMLEditorKit {
   
- 
+  private static final long serialVersionUID = 1L;
+
   public static class RestrictedHTMLFactory extends HTMLFactory {
 
     @Override
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/FontProviderException.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/FontProviderException.java
index 5a6a277e..ee9b05de 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/FontProviderException.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/FontProviderException.java
@@ -23,6 +23,8 @@ package at.gv.egiz.bku.gui.viewer;
  */
 public class FontProviderException extends Exception {
 
+  private static final long serialVersionUID = 1L;
+
   public FontProviderException(String msg, Throwable cause) {
     super(msg, cause);
   }
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/SecureViewerSaveDialog.java b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/SecureViewerSaveDialog.java
index 3303d4ef..335a8599 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/SecureViewerSaveDialog.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/bku/gui/viewer/SecureViewerSaveDialog.java
@@ -1,5 +1,8 @@
 package at.gv.egiz.bku.gui.viewer;
 
+import java.awt.Component;
+import java.awt.Container;
+import java.awt.Font;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
 import java.io.BufferedOutputStream;
@@ -8,39 +11,51 @@ import java.io.FileOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.text.MessageFormat;
-import java.util.Locale;
 import java.util.ResourceBundle;
 
 import javax.swing.JFileChooser;
+import javax.swing.JLabel;
 import javax.swing.JOptionPane;
 import javax.swing.SwingUtilities;
+import javax.swing.UIManager;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import at.gv.egiz.bku.gui.BKUGUIFacade;
 import at.gv.egiz.stal.HashDataInput;
 
 public class SecureViewerSaveDialog {
 
-  protected static final Log log = LogFactory.getLog(SecureViewerSaveDialog.class);
-    
+	private static void setFileChooserFont(Component[] comp, Font font) {
+		for (int i = 0; i < comp.length; i++) {
+			if (comp[i] instanceof Container)
+				setFileChooserFont(((Container) comp[i]).getComponents(), font);
+			try {
+				comp[i].setFont(font);
+			} catch (Exception e) {
+			    Logger log = LoggerFactory.getLogger(SecureViewerSaveDialog.class);
+				log.warn("FileChooser component font could not be set");
+			}
+		}
+	}
+  
   public static void showSaveDialog(final HashDataInput hashDataInput, final ResourceBundle messages,
-      final ActionListener okListener, final String okCommand) {
-
-    log.debug("[" + Thread.currentThread().getName()
-        + "] scheduling save dialog");
+      final ActionListener okListener, final String okCommand, final int fontSize) {
+    
+    final Logger log = LoggerFactory.getLogger(SecureViewerSaveDialog.class);
+    log.debug("[{}] Scheduling save dialog.", Thread.currentThread().getName());
 
     SwingUtilities.invokeLater(new Runnable() {
 
       @Override
       public void run() {
 
-        log
-            .debug("[" + Thread.currentThread().getName()
-                + "] show save dialog");
+        log.debug("[{}] Show save dialog.", Thread.currentThread().getName());
 
         String userHome = System.getProperty("user.home");
+        
+        UIManager.put("Button.defaultButtonFollowsFocus", Boolean.TRUE);
 
         JFileChooser fileDialog = new JFileChooser(userHome);
         fileDialog.setMultiSelectionEnabled(false);
@@ -58,6 +73,9 @@ public class SecureViewerSaveDialog {
             + MimeFilter.getExtension(mimeType);
         fileDialog.setSelectedFile(new File(userHome, filename));
 
+		setFileChooserFont(fileDialog.getComponents(), new JLabel()
+				.getFont().deriveFont((float) fontSize));        
+        
         // parent contentPane -> placed over applet
         switch (fileDialog.showSaveDialog(fileDialog)) {
         case JFileChooser.APPROVE_OPTION:
@@ -75,8 +93,8 @@ public class SecureViewerSaveDialog {
             }
           }
           if (log.isDebugEnabled()) {
-            log.debug("writing hashdata input " + id + " (" + mimeType
-                + ") to file " + file);
+            Object[] args = {id, mimeType, file};
+            log.debug("Writing hashdata input {} ({}) to file {}.", args);
           }
           FileOutputStream fos = null;
           try {
@@ -90,8 +108,7 @@ public class SecureViewerSaveDialog {
             bos.flush();
             bos.close();
           } catch (IOException ex) {
-            log.error("Failed to write " + file + ": " + ex.getMessage());
-            log.debug(ex);
+            log.error("Failed to write.", ex);
             String errPattern = messages
                 .getString(BKUGUIFacade.ERR_WRITE_HASHDATA);
             JOptionPane.showMessageDialog(fileDialog, MessageFormat.format(
@@ -108,7 +125,7 @@ public class SecureViewerSaveDialog {
           }
           break;
         case JFileChooser.CANCEL_OPTION:
-          log.debug("cancelled save dialog");
+          log.debug("Cancelled save dialog.");
           break;
         }
         if (okListener != null) {
diff --git a/BKUCommonGUI/src/main/java/at/gv/egiz/stal/impl/ByteArrayHashDataInput.java b/BKUCommonGUI/src/main/java/at/gv/egiz/stal/impl/ByteArrayHashDataInput.java
index b9416845..7f76619f 100644
--- a/BKUCommonGUI/src/main/java/at/gv/egiz/stal/impl/ByteArrayHashDataInput.java
+++ b/BKUCommonGUI/src/main/java/at/gv/egiz/stal/impl/ByteArrayHashDataInput.java
@@ -21,8 +21,8 @@ import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  *
@@ -30,7 +30,7 @@ import org.apache.commons.logging.LogFactory;
  */
 public class ByteArrayHashDataInput implements HashDataInput {
 
-    private static final Log log = LogFactory.getLog(ByteArrayHashDataInput.class);
+    private final Logger log = LoggerFactory.getLogger(ByteArrayHashDataInput.class);
   
     protected byte[] hashData;
     protected String id;
@@ -66,7 +66,7 @@ public class ByteArrayHashDataInput implements HashDataInput {
         }
         this.hashData = baos.toByteArray();
       } catch (IOException ex) {
-        log.error("Failed to cache provided HashDataInput: " + ex.getMessage(), ex);
+        log.error("Failed to cache provided HashDataInput: {}.", ex.getMessage(), ex);
         this.hashData = new byte[0];
       }
       this.id = hdi.getReferenceId();
diff --git a/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages.properties b/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages.properties
index c09433de..ac8b2777 100644
--- a/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages.properties
+++ b/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages.properties
@@ -49,7 +49,7 @@ hashdatalink.tiny.focus=<html><a href=\"anzeige\">[Signaturdaten]</a></html>
 #verwenden sie bitte die von ihrem System zur Verf\u00FCgung gestellte {0} Anwendung. 
 hashdatalist=<html>{0} Signaturdaten:</html>
 hashdata.viewer=<html>Signaturdaten werden im Betrachter angezeigt
-unsupported.mimetype=<html>Signaturdaten k\u00F6nnen nicht angezeigt werden
+unsupported.mimetype=<html>Signaturdaten speichern und mit einem geeigneten {0} Betrachter \u00F6ffnen.
 retries.last=<html>Letzter Versuch!</html>
 retries=<html>Noch {0} Versuche</html>
 retries.pinpad.last=<html>Eingabe wiederholen, letzter Versuch!</html>
@@ -76,6 +76,7 @@ mimetype.desc.doc=Microsoft Word-Dateien (.doc)
 mimetype.desc.unknown=Alle Dateien (.*)
 save.hashdatainput.prefix=Signaturdaten
 alt.help=Hilfe
+dialog.sigpin.infolabel.sigdata.tooltiptext=Signaturdaten in neuem Fenster anzeigen
 
 # Error Messages
 error.no.hashdata=<html>Keine Signaturdaten verf\u00FCgbar: {0}</html>
diff --git a/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages_en.properties b/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages_en.properties
index 4d86d21b..6381bdf9 100644
--- a/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages_en.properties
+++ b/BKUCommonGUI/src/main/resources/at/gv/egiz/bku/gui/Messages_en.properties
@@ -47,7 +47,7 @@ hashdatalink.tiny.focus=<html><a href=\"anzeige\">[signature data]</a></html>
 #message.hashdata=<html>Remark: This is a preview of the data to-be signed. For standards compliant display see help.</html>
 hashdatalist=<html>{0} signature data objects:</html>
 hashdata.viewer=<html>Signature data is being displayed in viewer
-unsupported.mimetype=<html>Signature data cannot be displayed
+unsupported.mimetype=<html>Save and open signature data with appropriate {0} viewer.
 retries.last=<html>Last try!</html>
 retries=<html>{0} tries left</html>
 retries.pinpad.last=<html>Re-enter pin, last try!</html>
@@ -74,6 +74,8 @@ mimetype.desc.doc=Microsoft Word-files (.doc)
 mimetype.desc.unknown=All files (.*)
 save.hashdatainput.prefix=signaturedata
 alt.help=help
+dialog.sigpin.infolabel.sigdata.tooltiptext=Show signature data in new window
+
 
 # Error Messages
 error.no.hashdata=<html>No signature data available: {0}</html>
diff --git a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/BKUGUIWorker.java b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/BKUGUIWorker.java
index a2a84d6e..373ecaad 100644
--- a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/BKUGUIWorker.java
+++ b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/BKUGUIWorker.java
@@ -20,14 +20,11 @@
  */
 package at.gv.egiz.bku.gui;
 
-import at.gv.egiz.smcc.PINSpec;
-import at.gv.egiz.smcc.STARCOSCard;
+import at.gv.egiz.smcc.PinInfo;
 import at.gv.egiz.stal.HashDataInput;
 import at.gv.egiz.stal.impl.ByteArrayHashDataInput;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
-import java.io.ByteArrayInputStream;
-import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -47,8 +44,8 @@ public class BKUGUIWorker implements Runnable {
   public void run() {
         try {
 
-    final PINSpec signPinSpec = new PINSpec(6, 10, "[0-9]", "Test-PIN", (byte) 0x81, null);
-    final PINSpec cardPinSpec = new PINSpec(4, 4, "[0-9]", "Test-PIN", (byte) 0x01, null);
+    final PinInfo signPinSpec = new SimplePinInfo(6, 10, "[0-9]", "Test-PIN", (byte) 0x81, null, PinInfo.UNKNOWN_RETRIES);
+    final PinInfo cardPinSpec = new SimplePinInfo(4, 4, "[0-9]", "Test-PIN", (byte) 0x01, null, PinInfo.UNKNOWN_RETRIES);
 
 
     final ActionListener cancelListener = new ActionListener() {
diff --git a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/DummyFontLoader.java b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/DummyFontLoader.java
index 505c4247..26fc1a5e 100644
--- a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/DummyFontLoader.java
+++ b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/DummyFontLoader.java
@@ -21,8 +21,8 @@ import at.gv.egiz.bku.gui.viewer.FontProviderException;
 import at.gv.egiz.bku.gui.viewer.FontProvider;
 import java.awt.Font;
 
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  *
@@ -30,11 +30,11 @@ import org.apache.commons.logging.LogFactory;
  */
 public class DummyFontLoader implements FontProvider {
 
-  protected final static Log log = LogFactory.getLog(DummyFontLoader.class);
+  private final Logger log = LoggerFactory.getLogger(DummyFontLoader.class);
   
   @Override
   public Font getFont() throws FontProviderException {
-	log.debug("return font");  
+	log.debug("Return font."); 
     return new Font("monospaced", Font.PLAIN, 10);
   }
 
diff --git a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SecureViewerDialogTest.java b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SecureViewerDialogTest.java
index 9bbc1b1a..64f7e744 100644
--- a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SecureViewerDialogTest.java
+++ b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SecureViewerDialogTest.java
@@ -7,8 +7,6 @@ package at.gv.egiz.bku.gui;
 
 import at.gv.egiz.stal.impl.ByteArrayHashDataInput;
 import java.awt.Font;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
 import java.io.BufferedInputStream;
 import java.io.FileInputStream;
 import java.io.FileNotFoundException;
@@ -35,7 +33,7 @@ public class SecureViewerDialogTest {
   @BeforeClass
   public static void setUpClass() throws Exception {
     messages = ResourceBundle.getBundle("at/gv/egiz/bku/gui/Messages");
-    secureViewer = new SecureViewerDialog(null, messages,null, null, new DummyFontLoader(), null);
+    secureViewer = new SecureViewerDialog(null, messages,null, null, new DummyFontLoader(), new DeafHelpListener("../help", messages.getLocale()), 1f);
   }
 
   @AfterClass
diff --git a/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SimplePinInfo.java b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SimplePinInfo.java
new file mode 100644
index 00000000..3e583118
--- /dev/null
+++ b/BKUCommonGUI/src/test/java/at/gv/egiz/bku/gui/SimplePinInfo.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2008 Federal Chancellery Austria and
+ * Graz University of Technology
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package at.gv.egiz.bku.gui;
+
+import at.gv.egiz.smcc.PinInfo;
+import java.util.Locale;
+
+/**
+ *
+ * @author Clemens Orthacker <clemens.orthacker@iaik.tugraz.at>
+ */
+public class SimplePinInfo extends PinInfo {
+
+  String name;
+
+  public SimplePinInfo(int minLength, int maxLength, String rexepPattern, String name, byte kid, byte[] contextAID, int maxRetries) {
+    super(minLength, maxLength, rexepPattern, null, null, kid, contextAID, maxRetries);
+    this.name = name;
+  }
+
+  @Override
+  public String getLocalizedName() {
+    return name;
+  }
+
+  @Override
+  public String getLocalizedName(Locale locale) {
+    return name;
+  }
+
+}
diff --git a/BKUCommonGUI/src/test/resources/commons-logging.properties b/BKUCommonGUI/src/test/resources/commons-logging.properties
deleted file mode 100644
index 29292562..00000000
--- a/BKUCommonGUI/src/test/resources/commons-logging.properties
+++ /dev/null
@@ -1 +0,0 @@
-org.apache.commons.logging.Log=org.apache.commons.logging.impl.Log4JLogger