first shot at RTFHandler using jfor RTF library

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@195397 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 135 insertions, 5 deletions

diff --git a/src/org/apache/fop/apps/Driver.java b/src/org/apache/fop/apps/Driver.java
index d885c9ab2..010f63a7f 100644
--- a/src/org/apache/fop/apps/Driver.java
+++ b/src/org/apache/fop/apps/Driver.java
@@ -145,6 +145,11 @@ public class Driver implements LogEnabled {
     private FOTreeBuilder _treeBuilder;
 
     /**
+     * the renderer type code given by setRenderer
+     */
+    private int _rendererType;
+
+    /**
      * the renderer to use to output the area tree
      */
     private Renderer _renderer;
@@ -318,6 +323,7 @@ public class Driver implements LogEnabled {
      * @param renderer the type of renderer to use
      */
     public void setRenderer(int renderer) throws IllegalArgumentException {
+        _rendererType = renderer;
         switch (renderer) {
         case RENDER_PDF:
             setRenderer("org.apache.fop.render.pdf.PDFRenderer");
@@ -336,7 +342,7 @@ public class Driver implements LogEnabled {
             setRenderer("org.apache.fop.render.txt.TXTRenderer()");
             break;
         case RENDER_MIF:
-            //structHandler = new org.apache.fop.mif.MIFHandler(_stream);
+            //structHandler will be set later
             break;
         case RENDER_XML:
             setRenderer("org.apache.fop.render.xml.XMLRenderer");
@@ -345,7 +351,7 @@ public class Driver implements LogEnabled {
             setRenderer("org.apache.fop.render.svg.SVGRenderer");
             break;
         case RENDER_RTF:
-            if(true) throw new IllegalArgumentException("-rtf option recognized but RTF output is not implemented yet");
+            //structHandler will be set later
             break;
         default:
             throw new IllegalArgumentException("Unknown renderer type");
@@ -456,11 +462,15 @@ public class Driver implements LogEnabled {
      */
     public ContentHandler getContentHandler() {
         // TODO - do this stuff in a better way
-        if (_renderer != null) {
-            structHandler = new LayoutHandler(_stream, _renderer, true);
-        } else {
+        if(_rendererType == RENDER_MIF) {
             structHandler = new org.apache.fop.mif.MIFHandler(_stream);
+        } else if(_rendererType == RENDER_RTF) {
+            structHandler = new org.apache.fop.rtf.renderer.RTFHandler(_stream);
+        } else {
+            if (_renderer == null) throw new Error("_renderer not set when using standard structHandler");  
+            structHandler = new LayoutHandler(_stream, _renderer, true);
         }
+        
         structHandler.enableLogging(getLogger());
 
         _treeBuilder.setUserAgent(getUserAgent());
diff --git a/src/org/apache/fop/rtf/renderer/RTFHandler.java b/src/org/apache/fop/rtf/renderer/RTFHandler.java
new file mode 100644
index 000000000..bfd04f09c
--- /dev/null
+++ b/src/org/apache/fop/rtf/renderer/RTFHandler.java
@@ -0,0 +1,120 @@
+/*
+ * $Id$
+ * Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
+ * For details on use and redistribution please refer to the
+ * LICENSE file included with these sources.
+ */
+
+package org.apache.fop.rtf.renderer;
+
+import org.apache.fop.apps.StructureHandler;
+import org.apache.fop.layout.FontInfo;
+import org.apache.fop.apps.FOPException;
+
+import org.apache.fop.fo.pagination.PageSequence;
+import org.apache.fop.fo.pagination.LayoutMasterSet;
+import org.apache.fop.fo.pagination.SimplePageMaster;
+import org.apache.fop.fo.Title;
+import org.apache.fop.fo.flow.Block;
+import org.apache.fop.fo.flow.Flow;
+
+import org.jfor.jfor.rtflib.rtfdoc.RtfFile;
+import org.jfor.jfor.rtflib.rtfdoc.RtfSection;
+import org.jfor.jfor.rtflib.rtfdoc.RtfParagraph;
+import org.jfor.jfor.rtflib.rtfdoc.RtfDocumentArea;
+
+import org.xml.sax.SAXException;
+import java.io.OutputStream;
+import java.io.OutputStreamWriter;
+import java.io.IOException;
+
+/**
+ * RTF Handler: generates RTF output using the structure events from
+ * the FO Tree sent to this structure handler.
+ *
+ *  @author bdelacretaz@apache.org
+ */
+
+ public class RTFHandler extends StructureHandler {
+    private FontInfo _fontInfo = new FontInfo();
+    private RtfFile _rtfFile;
+    private RtfSection _sect;
+    private RtfDocumentArea _docArea;
+    private RtfParagraph _para;
+    private boolean _warned = false;
+    
+    private static final String ALPHA_WARNING = "WARNING: RTF renderer is veryveryalpha at this time, see class org.apache.fop.rtf.renderer.RTFHandler";
+
+    public RTFHandler(OutputStream os) throws IOException {
+        _rtfFile = new RtfFile(new OutputStreamWriter(os));
+        // use pdf fonts for now, this is only for resolving names
+        org.apache.fop.render.pdf.FontSetup.setup(_fontInfo, null);
+        System.err.println(ALPHA_WARNING);
+    }
+
+    public FontInfo getFontInfo() {
+        return _fontInfo;
+    }
+
+    public void startDocument() throws SAXException {
+        // FIXME sections should be created 
+        try {
+            _docArea = _rtfFile.startDocumentArea();
+        } catch(IOException ioe) {
+            // FIXME could we throw Exception in all StructureHandler events?
+            throw new SAXException("IOException: " + ioe);
+        }
+    }
+
+    public void endDocument() throws SAXException {
+        try {
+            _rtfFile.flush();
+        } catch(IOException ioe) {
+            // FIXME could we throw Exception in all StructureHandler events?
+            throw new SAXException("IOException: " + ioe);
+        }
+    }
+
+    public void startPageSequence(PageSequence pageSeq, Title seqTitle, LayoutMasterSet lms)  {
+        try {
+            _sect = _docArea.newSection();
+            if(!_warned) {
+                _sect.newParagraph().newText(ALPHA_WARNING);
+                _warned = true;
+            }
+        } catch(IOException ioe) {
+            // FIXME could we throw Exception in all StructureHandler events?
+            throw new Error("IOException: " + ioe);
+        }
+    }
+
+    public void endPageSequence(PageSequence pageSeq) throws FOPException {
+    }
+
+    public void startFlow(Flow fl) {
+    }
+
+    public void endFlow(Flow fl) {
+    }
+
+    public void startBlock(Block bl) {
+        try {
+            _para = _sect.newParagraph();
+        } catch(IOException ioe) {
+            // FIXME could we throw Exception in all StructureHandler events?
+            throw new Error("IOException: " + ioe);
+        }
+    }
+
+    public void endBlock(Block bl) {
+    }
+
+    public void characters(char data[], int start, int length) {
+        try {
+            _para.newText(new String(data,start,length));
+         } catch(IOException ioe) {
+            // FIXME could we throw Exception in all StructureHandler events?
+            throw new Error("IOException: " + ioe);
+        }
+   }
+}