Placeholder-image handling

git-svn-id: https://joinup.ec.europa.eu/svn/pdf-as/trunk@613 7b5415b0-85f9-ee4d-85bd-d5d0c3b42d1c

1 files changed, 28 insertions, 0 deletions

diff --git a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java
index 4a80553..c34ee68 100644
--- a/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java
+++ b/src/main/java/at/knowcenter/wag/egov/egiz/pdf/BinarySignature.java
@@ -21,6 +21,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;

 import java.io.OutputStream;

 import java.io.UnsupportedEncodingException;

+import java.net.MalformedURLException;

 import java.security.MessageDigest;

 import java.security.NoSuchAlgorithmException;

 import java.security.cert.CertificateEncodingException;

@@ -42,6 +43,8 @@ import at.gv.egiz.pdfas.exceptions.pdf.KZSettingNotFoundException;
 import at.gv.egiz.pdfas.framework.input.PdfDataSource;

 import at.gv.egiz.pdfas.framework.output.DataSink;

 import at.gv.egiz.pdfas.framework.signator.SignatorInformation;

+import at.gv.egiz.pdfas.placeholder.SignaturePlaceholderContext;

+import at.gv.egiz.pdfas.placeholder.SignaturePlaceholderData;

 import at.gv.egiz.pdfas.utils.PDFASUtils;

 import at.knowcenter.wag.egov.egiz.cfg.SettingsReader;

 import at.knowcenter.wag.egov.egiz.exceptions.PDFDocumentException;

@@ -56,13 +59,17 @@ import at.knowcenter.wag.egov.egiz.sig.SignatureTypes;
 import at.knowcenter.wag.egov.egiz.tools.CodingHelper;

 import at.knowcenter.wag.exactparser.ByteArrayUtils;

 

+import com.lowagie.text.BadElementException;

 import com.lowagie.text.Document;

 import com.lowagie.text.DocumentException;

+import com.lowagie.text.Image;

 import com.lowagie.text.Rectangle;

+import com.lowagie.text.pdf.BadPdfFormatException;

 import com.lowagie.text.pdf.PRStream;

 import com.lowagie.text.pdf.PdfArray;

 import com.lowagie.text.pdf.PdfContentByte;

 import com.lowagie.text.pdf.PdfDictionary;

+import com.lowagie.text.pdf.PdfImage;

 import com.lowagie.text.pdf.PdfIndirectObject;

 import com.lowagie.text.pdf.PdfIndirectReference;

 import com.lowagie.text.pdf.PdfName;

@@ -87,6 +94,8 @@ import com.lowagie.text.pdf.PdfTemplate;
  */

 public abstract class BinarySignature

 {

+//23.11.2010 changed by exthex - added replacePlaceholder(PdfStamper stamper, int pageNr, String placeholderName) method

+  

   protected static Log logger = LogFactory.getLog(BinarySignature.class);

   /**

    * The tolerance area of the line break algorithm.

@@ -826,6 +835,13 @@ public abstract class BinarySignature
       {

         throw new PDFDocumentException(224, "The provided page (=" + pi.getPage() + ") is out of range.");

       }

+      

+      if (SignaturePlaceholderContext.isSignaturePlaceholderDataSet() &&

+            SignaturePlaceholderContext.getSignaturePlaceholderData().getPlaceholderName() != null)

+      {

+         replacePlaceholder(stamper, pi.getPage(), SignaturePlaceholderContext.getSignaturePlaceholderData().getPlaceholderName());

+      }

+      

       PdfContentByte content = stamper.getOverContent(pi.getPage());

       // content = StampContent einer PageStamp.

 

@@ -940,6 +956,18 @@ public abstract class BinarySignature
       throw new PresentableException(ErrorCode.CANNOT_WRITE_PDF, e);

     }

   }

+  

+  private static void replacePlaceholder(PdfStamper stamper, int pageNr, String placeholderName) throws BadElementException, MalformedURLException, IOException, BadPdfFormatException {

+     Image img = Image.getInstance(SignaturePlaceholderData.class.getResource("empty.jpg"));

+     PdfImage pImg = new PdfImage(img, "Imwurscht", null);

+     PdfStamperImp stamperImp = (PdfStamperImp)stamper.getWriter();

+     PdfIndirectObject ind = stamperImp.addToBody(pImg);

+     

+     PdfDictionary resources = stamper.getReader().getPageN(pageNr).getAsDict(PdfName.RESOURCES);

+     resources.getAsDict(PdfName.XOBJECT).put(new PdfName(placeholderName), ind.getIndirectReference());

+     stamperImp.markUsed(resources);

+  }

+  

 

   /**

    * Creates the EGIZ Dictionary and adds it to the document.