Added stuff for writing

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353125 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/src/org/apache/poi/hwpf/model/hdftypes/PlexOfCps.java

@@ -73,6 +73,13 @@ public class PlexOfCps
   private int _sizeOfStruct;
   private ArrayList _props;
 
+
+  public PlexOfCps(int sizeOfStruct)
+  {
+    _props = new ArrayList();
+    _sizeOfStruct = sizeOfStruct;
+  }
+
   /**
    * Constructor
    *
@@ -97,7 +104,40 @@ public class PlexOfCps
     return (PropertyNode)_props.get(index);
   }
 
-  protected PropertyNode getProperty(int index, byte[] buf, int offset)
+  public void addProperty(PropertyNode node)
+  {
+    _props.add(node);
+  }
+
+  public byte[] toByteArray()
+  {
+    int size = _props.size();
+    int cpBufSize = ((size + 1) * LittleEndian.INT_SIZE);
+    int structBufSize =  + (_sizeOfStruct * size);
+    int bufSize = cpBufSize + structBufSize;
+
+    byte[] buf = new byte[bufSize];
+
+    PropertyNode node = null;
+    for (int x = 0; x < size; x++)
+    {
+      node = (PropertyNode)_props.get(x);
+
+      // put the starting offset of the property into the plcf.
+      LittleEndian.putInt(buf, (LittleEndian.INT_SIZE * x), node.getStart());
+
+      // put the struct into the plcf
+      System.arraycopy(node.getBuf(), 0, buf, cpBufSize + (x * _sizeOfStruct),
+                       _sizeOfStruct);
+    }
+    // put the ending offset of the last property into the plcf.
+    LittleEndian.putInt(buf, LittleEndian.INT_SIZE * size, node.getEnd());
+
+    return buf;
+
+  }
+
+  private PropertyNode getProperty(int index, byte[] buf, int offset)
   {
     int start = LittleEndian.getInt(buf, offset + getIntOffset(index));
     int end = LittleEndian.getInt(buf, offset + getIntOffset(index+1));
@@ -108,7 +148,7 @@ public class PlexOfCps
     return new PropertyNode(start, end, struct);
   }
 
-  protected int getIntOffset(int index)
+  private int getIntOffset(int index)
   {
     return index * 4;
   }
@@ -132,7 +172,7 @@ public class PlexOfCps
    * @return The offset, in bytes, from the beginning if this PlexOfCps to
    *         the data structure at index.
    */
-  protected int getStructOffset(int index)
+  private int getStructOffset(int index)
   {
     return (4 * (_count + 1)) + (_sizeOfStruct * index);
   }

src/scratchpad/src/org/apache/poi/hwpf/model/hdftypes/SEPX.java

@@ -60,9 +60,12 @@ package org.apache.poi.hwpf.model.hdftypes;
 public class SEPX extends PropertyNode
 {
 
-  public SEPX(int start, int end, byte[] grpprl)
+  SectionDescriptor _sed;
+
+  public SEPX(SectionDescriptor sed, int start, int end, byte[] grpprl)
   {
     super(start, end, grpprl);
+    _sed = sed;
   }
 
   public byte[] getGrpprl()
@@ -70,4 +73,9 @@ public class SEPX extends PropertyNode
     return super.getBuf();
   }
 
+  public SectionDescriptor getSectionDescriptor()
+  {
+    return _sed;
+  }
+
 }

src/scratchpad/src/org/apache/poi/hwpf/model/hdftypes/SectionDescriptor.java

@@ -66,6 +66,10 @@ public class SectionDescriptor
   private short fnMpr;
   private int fcMpr;
 
+  public SectionDescriptor()
+  {
+  }
+
   public SectionDescriptor(byte[] buf, int offset)
   {
     fn = LittleEndian.getShort(buf, offset);
@@ -82,4 +86,24 @@ public class SectionDescriptor
     return fc;
   }
 
+  public void setFc(int fc)
+  {
+    this.fc = fc;
+  }
+
+  public byte[] toByteArray()
+  {
+    int offset = 0;
+    byte[] buf = new byte[12];
+
+    LittleEndian.putShort(buf, offset, fn);
+    offset += LittleEndian.SHORT_SIZE;
+    LittleEndian.putInt(buf, offset, fc);
+    offset += LittleEndian.INT_SIZE;
+    LittleEndian.putShort(buf, offset, fnMpr);
+    offset += LittleEndian.SHORT_SIZE;
+    LittleEndian.putInt(buf, offset, fcMpr);
+
+    return buf;
+  }
 }

src/scratchpad/src/org/apache/poi/hwpf/model/hdftypes/SectionTable.java

@@ -57,12 +57,17 @@
 package org.apache.poi.hwpf.model.hdftypes;
 
 import java.util.ArrayList;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+import org.apache.poi.util.LittleEndian;
+import org.apache.poi.hwpf.model.io.*;
 
 public class SectionTable
 {
   private static final int SED_SIZE = 12;
 
-  private ArrayList sections;
+  private ArrayList _sections;
 
   public SectionTable(byte[] documentStream, byte[] tableStream, int offset,
                       int size)
@@ -81,16 +86,54 @@ public class SectionTable
       // check for the optimization
       if (fileOffset == 0xffffffff)
       {
-        sections.add(new SEPX(node.getStart(), node.getEnd(), new byte[0]));
+        _sections.add(new SEPX(sed, node.getStart(), node.getEnd(), new byte[0]));
       }
       else
       {
-        // The first byte at the offset is the size of the grpprl.
-        byte[] buf = new byte[documentStream[fileOffset++]];
+        // The first short at the offset is the size of the grpprl.
+        int sepxSize = LittleEndian.getShort(documentStream, fileOffset);
+        byte[] buf = new byte[sepxSize];
+        fileOffset += LittleEndian.SHORT_SIZE;
         System.arraycopy(documentStream, fileOffset, buf, 0, buf.length);
-        sections.add(new SEPX(node.getStart(), node.getEnd(), buf));
+        _sections.add(new SEPX(sed, node.getStart(), node.getEnd(), buf));
       }
     }
   }
 
+  public void writeTo(HWPFFileSystem sys)
+    throws IOException
+  {
+    HWPFOutputStream docStream = sys.getStream("WordDocument");
+    HWPFOutputStream tableStream = sys.getStream("1Table");
+
+    int offset = docStream.getOffset();
+    int len = _sections.size();
+    PlexOfCps plex = new PlexOfCps(SED_SIZE);
+
+    for (int x = 0; x < len; x++)
+    {
+      SEPX sepx = (SEPX)_sections.get(x);
+      byte[] grpprl = sepx.getGrpprl();
+
+      // write the sepx to the document stream. starts with a 2 byte size
+      // followed by the grpprl
+      byte[] shortBuf = new byte[2];
+      LittleEndian.putShort(shortBuf, (short)grpprl.length);
+
+      docStream.write(shortBuf);
+      docStream.write(grpprl);
+
+      // set the fc in the section descriptor
+      SectionDescriptor sed = sepx.getSectionDescriptor();
+      sed.setFc(offset);
+
+      // add the section descriptor bytes to the PlexOfCps.
+      PropertyNode property = new PropertyNode(sepx.getStart(), sepx.getEnd(), sed.toByteArray());
+      plex.addProperty(property);
+
+      offset = docStream.getOffset();
+    }
+    tableStream.write(plex.toByteArray());
+  }
+
 }