Bugzilla#48696 version 4: Bugfix for color model in IOCA IDE structure parameter for 4- and 8-bit grayscale images.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1175808 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/fop/afp/AFPDataObjectFactory.java

             break;
         case 4:
         case 8:
+            //A grayscale image
             ideStruct = content.needIDEStructureParameter();
             ideStruct.setBitsPerComponent(new int[] {bitsPerPixel});
+            ideStruct.setColorModel(IDEStructureParameter.COLOR_MODEL_YCBCR);
             break;
         case 24:
             ideStruct = content.needIDEStructureParameter();
             throw new IllegalArgumentException("Unsupported number of bits per pixel: "
                     + bitsPerPixel);
         }
-        if (imageObjectInfo.isSubtractive()) {
+        if (bitsPerPixel > 1 && imageObjectInfo.isSubtractive()) {
             ideStruct = content.needIDEStructureParameter();
             ideStruct.setSubtractive(imageObjectInfo.isSubtractive());
         }

src/java/org/apache/fop/afp/ioca/IDEStructureParameter.java

     private boolean grayCoding = false;
 
     /** the image color model */
-    private byte colorModel = COLOR_MODEL_YCRCB;
+    private byte colorModel = COLOR_MODEL_RGB;
 
     /** the array with the number of bits/IDE for each component */
     private byte[] bitsPerIDE = new byte[] {(byte)1}; //1-bit by default

status.xml

       documents. Example: the fix of marks layering will be such a case when it's done.
     -->
     <release version="FOP Trunk" date="TBD">
+      <action context="Fonts" dev="PH" type="fix" fixes-bug="48696">
+        Bugfix for color model in IOCA IDE structure parameter for 4- and 8-bit grayscale images.
+        Revision 4.
+      </action>
       <action context="Fonts" dev="PH" type="fix" fixes-bug="51760" due-to="Mehdi Houshmand">
         Changes the way PostScript handles Graphics2D images such that if the language is set to
         level 3, the image is stored as an embedded file which has no length limit.  Previously it