FOP-3241: Add option to convert image to CMYK

Author: simonsteiner1984

fop-core/src/main/java/org/apache/fop/apps/FopConfParser.java

@@ -34,6 +34,7 @@
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 
+import org.apache.xmlgraphics.image.loader.impl.imageio.ImageLoaderImageIO;
 import org.apache.xmlgraphics.image.loader.spi.ImageImplRegistry;
 import org.apache.xmlgraphics.image.loader.util.Penalty;
 import org.apache.xmlgraphics.io.ResourceResolver;
@@ -455,6 +456,7 @@ private void configureImageLoading(Configuration parent, boolean strict) throws
         } catch (ConfigurationException e) {
             LogUtil.handleException(LOG, e, strict);
         }
+        registry.setICCConverter(parent.getAttribute(ImageLoaderImageIO.ICC_CONVERTER, null));
     }
 
     /**

fop-core/src/main/java/org/apache/fop/render/intermediate/AbstractIFPainter.java

@@ -41,6 +41,7 @@
 import org.apache.xmlgraphics.image.loader.ImageInfo;
 import org.apache.xmlgraphics.image.loader.ImageManager;
 import org.apache.xmlgraphics.image.loader.ImageSessionContext;
+import org.apache.xmlgraphics.image.loader.impl.imageio.ImageLoaderImageIO;
 import org.apache.xmlgraphics.image.loader.util.ImageUtil;
 
 import org.apache.fop.ResourceEventProducer;
@@ -160,6 +161,7 @@ protected void drawImageUsingImageHandler(ImageInfo info, Rectangle rect)
 
         ImageFlavor[] flavors = imageHandlerRegistry.getSupportedFlavors(context, getImageForSupportedFlavors(info));
         info.getCustomObjects().put("warningincustomobject", true);
+        info.getCustomObjects().put(ImageLoaderImageIO.ICC_CONVERTER, manager.getRegistry().getIccConverter());
         org.apache.xmlgraphics.image.loader.Image img = manager.getImage(
                     info, flavors,
                     hints, sessionContext);