Configuration and Main Bar Buttons

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-over/trunk@53 174cde9d-5d70-4d2a-aa98-46368bc2aaf7

1 files changed, 183 insertions, 0 deletions

diff --git a/pdf-over-gui/src/main/java/at/asit/pdfover/gui/controls/MainBarButton.java b/pdf-over-gui/src/main/java/at/asit/pdfover/gui/controls/MainBarButton.java
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+/*
+ * Copyright 2012 by A-SIT, Secure Information Technology Center Austria
+ *
+ * Licensed under the EUPL, Version 1.1 or - as soon they will be approved by
+ * the European Commission - subsequent versions of the EUPL (the "Licence");
+ * You may not use this work except in compliance with the Licence.
+ * You may obtain a copy of the Licence at:
+ * http://joinup.ec.europa.eu/software/page/eupl
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the Licence is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the Licence for the specific language governing permissions and
+ * limitations under the Licence.
+ */
+package at.asit.pdfover.gui.controls;
+
+// Imports
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.PaintEvent;
+import org.eclipse.swt.events.PaintListener;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Region;
+import org.eclipse.swt.widgets.Canvas;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Event;
+import org.eclipse.swt.widgets.Listener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * 
+ */
+public abstract class MainBarButton extends Canvas {
+	/**
+	 * @param parent
+	 * @param style
+	 */
+	public MainBarButton(Composite parent, int style) {
+		super(parent, style);
+		this.addPaintListener(new PaintListener() {
+
+			@Override
+			public void paintControl(PaintEvent e) {
+				MainBarButton.this.paintButton(e);
+			}
+		});
+
+		this.addListener(SWT.Resize, new Listener() {
+
+			@Override
+			public void handleEvent(Event event) {
+				MainBarButton.this.setRegion(MainBarButton.this
+						.getCustomRegion());
+				MainBarButton.this.redraw();
+			}
+		});
+
+		this.inactiveBackground = new Color(getDisplay(), 0x4B, 0x95, 0x00);
+		this.activeBackground = new Color(getDisplay(), 0x98, 0xF2, 0x3D);
+
+	}
+
+	private Color inactiveBackground = null;
+
+	/**
+	 * @param inactiveBackground
+	 *            the inactiveBackground to set
+	 */
+	public void setInactiveBackground(Color inactiveBackground) {
+		this.inactiveBackground = inactiveBackground;
+	}
+
+	/**
+	 * @param activeBackground
+	 *            the activeBackground to set
+	 */
+	public void setActiveBackground(Color activeBackground) {
+		this.activeBackground = activeBackground;
+	}
+
+	private Color activeBackground = null;
+
+	private String text = ""; //$NON-NLS-1$
+
+	private boolean active = true;
+
+	private Image image = null;
+
+	/**
+	 * @return the imgage
+	 */
+	public Image getImage() {
+		return this.image;
+	}
+
+	/**
+	 * @param imgage
+	 *            the imgage to set
+	 */
+	public void setImage(Image image) {
+		this.image = image;
+	}
+
+	/**
+	 * Sets if this button is active
+	 * 
+	 * @param active
+	 *            the active state
+	 */
+	public void setActive(boolean active) {
+		this.active = active;
+		if (this.active) {
+			this.setBackground(this.activeBackground);
+		} else {
+			this.setBackground(this.inactiveBackground);
+		}
+	}
+
+	/**
+	 * Gets if this button is active
+	 * 
+	 * @return the active state
+	 */
+	public boolean getActive() {
+		return this.active;
+	}
+
+	/**
+	 * @return the text
+	 */
+	public String getText() {
+		return this.text;
+	}
+
+	/**
+	 * @param text
+	 *            the text to set
+	 */
+	public void setText(String text) {
+		this.text = text;
+	}
+
+	/**
+	 * SLF4J Logger instance
+	 **/
+	private static final Logger log = LoggerFactory
+			.getLogger(MainBarButton.class);
+
+	/**
+	 * @param e
+	 */
+	protected void paintButton(PaintEvent e) {
+		Point size = this.getSize();
+		int height = size.y - 2;
+
+		int width = size.x;
+
+		if (this.image == null) {
+			int textlen = 0;
+
+			if (this.getText() != null) {
+				textlen = this.getText().length();
+			}
+
+			int texty = (height - e.gc.getFontMetrics().getHeight()) / 2;
+			int textx = (width - e.gc.getFontMetrics().getAverageCharWidth()
+					* textlen) / 2;
+			e.gc.drawText(this.getText(), textx, texty);
+		} else {
+			int imgx = (width - height) / 2;
+			Image tmp = new Image(getDisplay(), this.image.getImageData().scaledTo(height, height));
+			e.gc.drawImage(tmp, imgx, 0);
+		}
+	}
+
+	/**
+	 * @return
+	 */
+	protected abstract Region getCustomRegion();
+}