Added stuff for writing

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@353125 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Said Ryan Ackley 2003-06-09 01:55:10 +00:00
parent 6ba649ee20
commit be73326e1d
4 changed files with 124 additions and 9 deletions

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@ -73,6 +73,13 @@ public class PlexOfCps
private int _sizeOfStruct; private int _sizeOfStruct;
private ArrayList _props; private ArrayList _props;
public PlexOfCps(int sizeOfStruct)
{
_props = new ArrayList();
_sizeOfStruct = sizeOfStruct;
}
/** /**
* Constructor * Constructor
* *
@ -97,7 +104,40 @@ public class PlexOfCps
return (PropertyNode)_props.get(index); 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 start = LittleEndian.getInt(buf, offset + getIntOffset(index));
int end = LittleEndian.getInt(buf, offset + getIntOffset(index+1)); int end = LittleEndian.getInt(buf, offset + getIntOffset(index+1));
@ -108,7 +148,7 @@ public class PlexOfCps
return new PropertyNode(start, end, struct); return new PropertyNode(start, end, struct);
} }
protected int getIntOffset(int index) private int getIntOffset(int index)
{ {
return index * 4; return index * 4;
} }
@ -132,7 +172,7 @@ public class PlexOfCps
* @return The offset, in bytes, from the beginning if this PlexOfCps to * @return The offset, in bytes, from the beginning if this PlexOfCps to
* the data structure at index. * the data structure at index.
*/ */
protected int getStructOffset(int index) private int getStructOffset(int index)
{ {
return (4 * (_count + 1)) + (_sizeOfStruct * index); return (4 * (_count + 1)) + (_sizeOfStruct * index);
} }

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

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@ -66,6 +66,10 @@ public class SectionDescriptor
private short fnMpr; private short fnMpr;
private int fcMpr; private int fcMpr;
public SectionDescriptor()
{
}
public SectionDescriptor(byte[] buf, int offset) public SectionDescriptor(byte[] buf, int offset)
{ {
fn = LittleEndian.getShort(buf, offset); fn = LittleEndian.getShort(buf, offset);
@ -82,4 +86,24 @@ public class SectionDescriptor
return fc; 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;
}
} }

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@ -57,12 +57,17 @@
package org.apache.poi.hwpf.model.hdftypes; package org.apache.poi.hwpf.model.hdftypes;
import java.util.ArrayList; 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 public class SectionTable
{ {
private static final int SED_SIZE = 12; private static final int SED_SIZE = 12;
private ArrayList sections; private ArrayList _sections;
public SectionTable(byte[] documentStream, byte[] tableStream, int offset, public SectionTable(byte[] documentStream, byte[] tableStream, int offset,
int size) int size)
@ -81,16 +86,54 @@ public class SectionTable
// check for the optimization // check for the optimization
if (fileOffset == 0xffffffff) 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 else
{ {
// The first byte at the offset is the size of the grpprl. // The first short at the offset is the size of the grpprl.
byte[] buf = new byte[documentStream[fileOffset++]]; int sepxSize = LittleEndian.getShort(documentStream, fileOffset);
byte[] buf = new byte[sepxSize];
fileOffset += LittleEndian.SHORT_SIZE;
System.arraycopy(documentStream, fileOffset, buf, 0, buf.length); 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());
}
} }