Added preliminary support for Palletes. Still need to write add/remove/change

functions.  Added this so that if someone else wants to finish it before I get
to it, they can. (have at it!)
PR:
Obtained from:
Submitted by:
Reviewed by:


git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352806 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew C. Oliver 2002-07-25 05:10:23 +00:00
parent 8609168fae
commit 556f6f6837
4 changed files with 208 additions and 3 deletions

View File

@ -621,7 +621,10 @@ public class BiffViewer {
case BottomMarginRecord.sid:
retval = new BottomMarginRecord(rectype, size, data);
break;
case PaletteRecord.sid:
retval = new PaletteRecord(rectype, size, data);
break;
default:
retval = new UnknownRecord(rectype, size, data);
}

View File

@ -199,6 +199,7 @@ public class HSSFEventFactory
{
in.read(data);
}
System.out.println("creating "+sid);
Record[] recs = RecordFactory.createRecord(sid, size,
data);

View File

@ -0,0 +1,199 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache POI" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* "Apache POI", nor may "Apache" appear in their name, without
* prior written permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.poi.hssf.record;
import java.util.ArrayList;
import java.util.List;
import org.apache.poi.util.LittleEndian;
/**
* PaletteRecord - Supports custom palettes.
* @author Andrew C. Oliver (acoliver at apache dot org)
* @version 2.0-pre
*/
public class PaletteRecord
extends Record
{
public final static short sid = 0x92;
private short field_1_numcolors;
private List field_2_colors;
public PaletteRecord()
{
}
/**
* Constructs a PaletteRecord record and sets its fields appropriately.
*
* @param id id must be 0x92 or an exception will be throw upon validation
* @param size the size of the data area of the record
* @param data data of the record (should not contain sid/len)
*/
public PaletteRecord(short id, short size, byte [] data)
{
super(id, size, data);
}
/**
* Constructs a PaletteRecord record and sets its fields appropriately.
*
* @param id id must be 0x0A or an exception will be throw upon validation
* @param size the size of the data area of the record
* @param data data of the record (should not contain sid/len)
* @param offset of the record's data
*/
public PaletteRecord(short id, short size, byte [] data, int offset)
{
super(id, size, data, offset);
}
protected void validateSid(short id)
{
if (id != sid)
{
throw new RecordFormatException("NOT An Palette RECORD");
}
}
protected void fillFields(byte [] data, short size, int offset)
{
field_1_numcolors = LittleEndian.getShort(data,offset+0);
field_2_colors = new ArrayList(field_1_numcolors);
for (int k = 0; k < field_1_numcolors; k++) {
field_2_colors.add(new PColor(
data[2+ offset+(k * 4) +0],
data[2+ offset+(k * 4) +1],
data[2+ offset+(k * 4) +2]
)
);
}
}
public String toString()
{
StringBuffer buffer = new StringBuffer();
buffer.append("[Palette]\n");
buffer.append(" numcolors = ").append(field_1_numcolors)
.append('\n');
for (int k = 0; k < field_1_numcolors; k++) {
PColor c = (PColor) field_2_colors.get(k);
buffer.append("* colornum = ").append(k)
.append('\n');
buffer.append(c.toString());
buffer.append("/*colornum = ").append(k)
.append('\n');
}
buffer.append("[/Palette]\n");
return buffer.toString();
}
public int serialize(int offset, byte [] data)
{
LittleEndian.putShort(data, 0 + offset, sid);
for (int k = 0; k < field_1_numcolors; k++) {
PColor c = (PColor)field_2_colors.get(k);
c.serialize(data, (2+offset+(k*4)));
}
return getRecordSize();
}
public int getRecordSize()
{
return 2 + (field_1_numcolors * 4);
}
public short getSid()
{
return this.sid;
}
}
/**
* PColor - element in the list of colors - consider it a "struct"
*/
class PColor {
public byte red;
public byte green;
public byte blue;
public PColor(byte red, byte green, byte blue) {
this.red=red;
this.green=green;
this.blue=blue;
}
public void serialize(byte[] data, int offset) {
data[offset + 0] = red;
data[offset + 1] = green;
data[offset + 2] = blue;
data[offset + 3] = 0;
}
public String toString() {
StringBuffer buffer = new StringBuffer();
buffer.append(" red = ").append(red).append('\n');
buffer.append(" green = ").append(green).append('\n');
buffer.append(" blue = ").append(blue).append('\n');
return buffer.toString();
}
}

View File

@ -108,7 +108,8 @@ public class RecordFactory
MulRKRecord.class, MulBlankRecord.class, MergeCellsRecord.class,
FormulaRecord.class, BoolErrRecord.class, ExternSheetRecord.class,
NameRecord.class, LeftMarginRecord.class, RightMarginRecord.class,
TopMarginRecord.class, BottomMarginRecord.class
TopMarginRecord.class, BottomMarginRecord.class,
PaletteRecord.class
};
} else {
records = new Class[]
@ -138,7 +139,8 @@ public class RecordFactory
MulRKRecord.class, MulBlankRecord.class, MergeCellsRecord.class,
BoolErrRecord.class, ExternSheetRecord.class, NameRecord.class,
LeftMarginRecord.class, RightMarginRecord.class,
TopMarginRecord.class, BottomMarginRecord.class
TopMarginRecord.class, BottomMarginRecord.class,
PaletteRecord.class
};
}