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Posted to dev@poi.apache.org by ni...@apache.org on 2005/07/31 20:06:26 UTC
cvs commit: jakarta-poi/src/scratchpad/src/org/apache/poi/hslf/record StyleTextPropAtom.java RecordTypes.java
nick 2005/07/31 11:06:26
Modified: src/scratchpad/src/org/apache/poi/hslf/record
RecordTypes.java
Added: src/scratchpad/src/org/apache/poi/hslf/record
StyleTextPropAtom.java
Log:
Read only support for paragraph styling, and the stylings of the text within it
Revision Changes Path
1.2 +1 -1 jakarta-poi/src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java
Index: RecordTypes.java
===================================================================
RCS file: /home/cvs/jakarta-poi/src/scratchpad/src/org/apache/poi/hslf/record/RecordTypes.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- RecordTypes.java 8 Jul 2005 12:37:14 -0000 1.1
+++ RecordTypes.java 31 Jul 2005 18:06:26 -0000 1.2
@@ -82,7 +82,7 @@
public static final Type OutlineTextRefAtom = new Type(3998,null);
public static final Type TextHeaderAtom = new Type(3999,TextHeaderAtom.class);
public static final Type TextCharsAtom = new Type(4000,TextCharsAtom.class);
- public static final Type StyleTextPropAtom = new Type(4001,null);
+ public static final Type StyleTextPropAtom = new Type(4001,StyleTextPropAtom.class);
public static final Type BaseTextPropAtom = new Type(4002,null);
public static final Type TxMasterStyleAtom = new Type(4003,null);
public static final Type TxCFStyleAtom = new Type(4004,null);
1.1 jakarta-poi/src/scratchpad/src/org/apache/poi/hslf/record/StyleTextPropAtom.java
Index: StyleTextPropAtom.java
===================================================================
/* ====================================================================
Copyright 2002-2004 Apache Software Foundation
Licensed 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.poi.hslf.record;
import org.apache.poi.util.LittleEndian;
import java.io.IOException;
import java.io.OutputStream;
import java.io.ByteArrayOutputStream;
import java.util.Vector;
/**
* A StyleTextPropAtom (type 4001). Holds character properties (font type,
* font size, colour, bold, italic etc) and paragraph properties
* (alignment, line spacing etc) for a block of text
*
* @author Nick Burch
*/
public class StyleTextPropAtom extends RecordAtom
{
private byte[] _header;
private static long _type = 4001l;
private byte[] reserved;
private short paraStyleLen;
private int paraStyle1;
private int paraStyle2;
private CharacterStyle[] charStyles;
/** Get the number of characters covered by these text styles */
public int getParagraphStyleCharactersCoveredLength() {
return paraStyleLen;
}
/** Get the individual character stylings for this paragraph */
public CharacterStyle[] getCharacterStyles() {
return charStyles;
}
/* *************** record code follows ********************** */
/**
* For the Text Style Properties (StyleTextProp) Atom
*/
protected StyleTextPropAtom(byte[] source, int start, int len) {
// Sanity Checking - we're always at least 8+10 bytes long
if(len < 18) {
len = 18;
if(source.length - start < 18) {
throw new RuntimeException("Not enough data to form a StyleTextPropAtom (min size 18 bytes long) - found " + (source.length - start));
}
}
// Get the header
_header = new byte[8];
System.arraycopy(source,start,_header,0,8);
// Grab the paragraph style stuff
paraStyleLen = (short)LittleEndian.getShort(source,start+8+0);
paraStyle1 = (int)LittleEndian.getInt(source,start+8+2);
paraStyle2 = (int)LittleEndian.getInt(source,start+8+6);
// While we have the data, grab the character styles
Vector cp = new Vector();
int cpos = 0;
while(cpos <= len-8-10-8) { // Min size is 8, then 8+10 in
CharacterStyle cs;
short clen = LittleEndian.getShort(source,start+8+10+cpos);
cpos += 2;
int s1 = (int)LittleEndian.getInt(source,start+8+10+cpos);
cpos += 4;
if(s1 == 0) {
short s3 = LittleEndian.getShort(source,start+8+10+cpos);
cpos += 2;
cs = new CharacterStyle(clen,s1,0,s3);
} else {
int s2 = (int)LittleEndian.getInt(source,start+8+10+cpos);
cpos += 4;
cs = new CharacterStyle(clen,s1,s2,(short)0);
}
cp.add(cs);
}
charStyles = new CharacterStyle[cp.size()];
for(int i=0; i<charStyles.length; i++) {
charStyles[i] = (CharacterStyle)cp.get(i);
}
// Chuck anything that doesn't fit somewhere for safe keeping
reserved = new byte[len-8-10-cpos];
System.arraycopy(source,start+8+10+cpos,reserved,0,reserved.length);
}
/**
* We are of type 4001
*/
public long getRecordType() { return _type; }
/**
* Write the contents of the record back, so it can be written
* to disk
*/
public void writeOut(OutputStream out) throws IOException {
// Grab the size of the character styles
ByteArrayOutputStream baos = new ByteArrayOutputStream();
for(int i=0; i<charStyles.length; i++) {
charStyles[i].writeOut(baos);
}
// Figure out the new size
// Para->10 + Chars + Reserved
int newSize = 10 + baos.size() + reserved.length;
// Update the size (header bytes 5-8)
LittleEndian.putInt(_header,4,newSize);
// Write out the (new) header
out.write(_header);
// Write out the paragraph bits
writeLittleEndian(paraStyleLen,out);
writeLittleEndian(paraStyle1,out);
writeLittleEndian(paraStyle2,out);
// Write out the character bits
out.write(baos.toByteArray());
// Write out any extra bits
out.write(reserved);
}
/**
* Class to handle character styles
*/
public static class CharacterStyle {
private short styleLen;
private int style1;
private int style2;
private short style3;
/** Create a new Character Style from on-disk data */
protected CharacterStyle(short len, int s1, int s2, short s3) {
styleLen = len;
style1 = s1;
style2 = s2;
style3 = s3;
}
/** Create a new Character Style for text without one */
protected CharacterStyle() {
new CharacterStyle((short)0,0,0,(short)0);
}
/** Write the character style out */
protected void writeOut(OutputStream out) throws IOException {
writeLittleEndian(styleLen,out);
writeLittleEndian(style1,out);
if(style1 == 0) {
writeLittleEndian(style3,out);
} else {
writeLittleEndian(style2,out);
}
}
/** Return the number of characters covered by these properties */
public int getCharactersCoveredLength() {
return styleLen;
}
/** Checks to see if the text is bold */
public boolean isBold() {
// style1 0x00010000
if ((style1 & 65536) == 65536) { return true; }
return false;
}
/** Checks to see if the text is italic */
public boolean isItalic() {
// style1 0x00020000
if ((style1 & 131072) == 131072) { return true; }
return false;
}
/** Checks to see if the text is underlined */
public boolean isUnderlined() {
// style1 0x00040000
if ((style1 & 262144) == 262144) { return true; }
return false;
}
}
}
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