FOP-2753: PDF to PS allow fop fonts as fallback

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1812122 13f79535-47bb-0310-9956-ffa450edef68

fop-core/src/main/java/org/apache/fop/render/ps/PSFontUtils.java

@@ -36,6 +36,7 @@ import org.apache.commons.logging.LogFactory;
 import org.apache.fontbox.cff.CFFStandardString;
 
 import org.apache.xmlgraphics.fonts.Glyphs;
+import org.apache.xmlgraphics.java2d.GeneralGraphics2DImagePainter;
 import org.apache.xmlgraphics.ps.DSCConstants;
 import org.apache.xmlgraphics.ps.PSGenerator;
 import org.apache.xmlgraphics.ps.PSResource;
@@ -50,6 +51,7 @@ import org.apache.fop.fonts.CustomFont;
 import org.apache.fop.fonts.EmbeddingMode;
 import org.apache.fop.fonts.Font;
 import org.apache.fop.fonts.FontInfo;
+import org.apache.fop.fonts.FontTriplet;
 import org.apache.fop.fonts.FontType;
 import org.apache.fop.fonts.LazyFont;
 import org.apache.fop.fonts.MultiByteFont;
@@ -907,4 +909,12 @@ public class PSFontUtils extends org.apache.xmlgraphics.ps.PSFontUtils {
         gen.getResourceTracker().registerSuppliedResource(res);
         return res;
     }
+
+    public static void addFallbackFonts(FontInfo fontInfo, GeneralGraphics2DImagePainter painter) throws IOException {
+        for (Map.Entry<FontTriplet, String> x : fontInfo.getFontTriplets().entrySet()) {
+            String name = x.getKey().getName();
+            Typeface typeface = fontInfo.getFonts().get(x.getValue());
+            painter.addFallbackFont(name, typeface);
+        }
+    }
 }

fop-core/src/main/java/org/apache/fop/render/ps/PSGraphics2DAdapter.java

@@ -31,6 +31,7 @@ import org.apache.xmlgraphics.java2d.Graphics2DImagePainter;
 import org.apache.xmlgraphics.java2d.ps.PSGraphics2D;
 import org.apache.xmlgraphics.ps.PSGenerator;
 
+import org.apache.fop.fonts.FontInfo;
 import org.apache.fop.pdf.PDFFactory;
 import org.apache.fop.render.AbstractGraphics2DAdapter;
 import org.apache.fop.render.ImageHandlerUtil;
@@ -45,15 +46,17 @@ public class PSGraphics2DAdapter extends AbstractGraphics2DAdapter {
 
     private PSGenerator gen;
     private boolean clip = true;
+    private FontInfo fontInfo;
 
     /**
      * Creates a new instance.
      * @param gen the PostScript generator
      * @param clip true if the image should be clipped
      */
-    public PSGraphics2DAdapter(PSGenerator gen, boolean clip) {
+    public PSGraphics2DAdapter(PSGenerator gen, boolean clip, FontInfo fontInfo) {
         this.gen = gen;
         this.clip = clip;
+        this.fontInfo = fontInfo;
     }
 
     /** {@inheritDoc} */
@@ -113,6 +116,9 @@ public class PSGraphics2DAdapter extends AbstractGraphics2DAdapter {
                             / context.getUserAgent().getTargetResolution();
             graphics.drawImage(bi, new AffineTransform(scale, 0, 0, scale, 0, 0), null);
         } else {
+            if (painter instanceof GeneralGraphics2DImagePainter) {
+                PSFontUtils.addFallbackFonts(fontInfo, (GeneralGraphics2DImagePainter) painter);
+            }
             Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, imw, imh);
             painter.paint(graphics, area);
         }

fop-core/src/main/java/org/apache/fop/render/ps/PSImageHandlerGraphics2D.java

@@ -37,6 +37,7 @@ import org.apache.xmlgraphics.ps.FormGenerator;
 import org.apache.xmlgraphics.ps.PSGenerator;
 import org.apache.xmlgraphics.ps.PSProcSets;
 
+import org.apache.fop.fonts.FontInfo;
 import org.apache.fop.render.RenderingContext;
 
 /**
@@ -94,6 +95,9 @@ public class PSImageHandlerGraphics2D implements PSImageHandler {
         transform.translate(fx, fy);
         gen.getCurrentState().concatMatrix(transform);
         Rectangle2D area = new Rectangle2D.Double(0.0, 0.0, imw, imh);
+        if (painter instanceof GeneralGraphics2DImagePainter) {
+            PSFontUtils.addFallbackFonts(psContext.getFontInfo(), (GeneralGraphics2DImagePainter) painter);
+        }
         painter.paint(graphics, area);
         gen.restoreGraphicsState();
         gen.commentln("%FOPEndGraphics2D");
@@ -107,7 +111,7 @@ public class PSImageHandlerGraphics2D implements PSImageHandler {
         final ImageGraphics2D imageG2D = (ImageGraphics2D)image;
         ImageInfo info = image.getInfo();
 
-        FormGenerator formGen = buildFormGenerator(gen.getPSLevel(), form, info, imageG2D);
+        FormGenerator formGen = buildFormGenerator(gen.getPSLevel(), form, info, imageG2D, psContext.getFontInfo());
         formGen.generate(gen);
     }
     /** {@inheritDoc} */
@@ -133,8 +137,8 @@ public class PSImageHandlerGraphics2D implements PSImageHandler {
         return false;
     }
 
-    private FormGenerator buildFormGenerator(int psLanguageLevel, final PSImageFormResource form,
-            final ImageInfo info, final ImageGraphics2D imageG2D) {
+    private FormGenerator buildFormGenerator(int psLanguageLevel, final PSImageFormResource form, final ImageInfo info,
+                                             final ImageGraphics2D imageG2D, final FontInfo fontInfo) {
         String imageDescription = info.getMimeType() + " " + info.getOriginalURI();
         final Dimension2D dimensionsPt = info.getSize().getDimensionPt();
         final Dimension2D dimensionsMpt = info.getSize().getDimensionMpt();
@@ -145,7 +149,7 @@ public class PSImageHandlerGraphics2D implements PSImageHandler {
 
                 @Override
                 void doGeneratePaintProc(PSGenerator gen) throws IOException {
-                    paintImageG2D(imageG2D, dimensionsMpt, gen);
+                    paintImageG2D(imageG2D, dimensionsMpt, gen, fontInfo);
                 }
             };
         } else {
@@ -157,7 +161,7 @@ public class PSImageHandlerGraphics2D implements PSImageHandler {
                     gen.writeln("  /Filter /SubFileDecode");
                     gen.writeln("  /DecodeParms << /EODCount 0 /EODString (%FOPEndOfData) >>");
                     gen.writeln(">> /ReusableStreamDecode filter");
-                    paintImageG2D(imageG2D, dimensionsMpt, gen);
+                    paintImageG2D(imageG2D, dimensionsMpt, gen, fontInfo);
                     gen.writeln("%FOPEndOfData");
                     gen.writeln("def");
                 }
@@ -179,8 +183,8 @@ public class PSImageHandlerGraphics2D implements PSImageHandler {
         }
 
         protected void paintImageG2D(final ImageGraphics2D imageG2D, Dimension2D dimensionsMpt,
-                PSGenerator gen) throws IOException {
-            PSGraphics2DAdapter adapter = new PSGraphics2DAdapter(gen, false);
+                PSGenerator gen, FontInfo fontInfo) throws IOException {
+            PSGraphics2DAdapter adapter = new PSGraphics2DAdapter(gen, false, fontInfo);
             adapter.paintImage(imageG2D.getGraphics2DImagePainter(),
                         null,
                         0, 0,

fop-core/src/test/java/org/apache/fop/render/ps/PSGraphics2DAdapterTestCase.java

@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.fop.render.ps;
+
+import java.awt.Dimension;
+import java.awt.Graphics2D;
+import java.awt.geom.Rectangle2D;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import org.junit.Assert;
+import org.junit.Test;
+
+import org.apache.xmlgraphics.java2d.GeneralGraphics2DImagePainter;
+import org.apache.xmlgraphics.java2d.ps.PSGraphics2D;
+import org.apache.xmlgraphics.ps.PSGenerator;
+
+import org.apache.fop.fonts.FontInfo;
+
+public class PSGraphics2DAdapterTestCase {
+    @Test
+    public void testFontFallback() throws IOException {
+        PSGenerator gen = new PSGenerator(new ByteArrayOutputStream());
+        FontInfo fi = new FontInfo();
+        fi.addFontProperties("a", "b", "c", 400);
+        PSGraphics2DAdapter psGraphics2DAdapter = new PSGraphics2DAdapter(gen, true, fi);
+        MyPainter painter = new MyPainter();
+        psGraphics2DAdapter.paintImage(painter, null, 0, 0, 0, 0);
+        Assert.assertEquals(painter.font, "b");
+    }
+
+    static class MyPainter implements GeneralGraphics2DImagePainter {
+        String font;
+        public Graphics2D getGraphics(boolean textAsShapes, PSGenerator gen) {
+            return new PSGraphics2D(true);
+        }
+
+        public void addFallbackFont(String name, Object font) {
+            this.font = name;
+        }
+
+        public void paint(Graphics2D g2d, Rectangle2D area) {
+        }
+
+        public Dimension getImageSize() {
+            return new Dimension();
+        }
+    }
+}