PICTpublic class PICT extends Metafile | Represents Macintosh PICT picture data. |
| Constructors Summary |
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public PICT()
super();
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| Methods Summary |
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| public byte[] | getData()Extract compressed PICT data from a ppt
byte[] rawdata = getRawData();
try {
byte[] macheader = new byte[512];
ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(macheader);
int pos = CHECKSUM_SIZE;
byte[] pict;
try {
pict = read(rawdata, pos);
} catch (IOException e){
//weird MAC behaviour.
//if failed to read right after the checksum - skip 16 bytes and try again
pict = read(rawdata, pos + 16);
}
out.write(pict);
return out.toByteArray();
} catch (IOException e){
throw new HSLFException(e);
}
| | public int | getSignature()PICT signature is 0x5430
return 0x5430;
| | public int | getType()
return Picture.PICT;
| | private byte[] | read(byte[] data, int pos)
ByteArrayOutputStream out = new ByteArrayOutputStream();
ByteArrayInputStream bis = new ByteArrayInputStream(data);
Header header = new Header();
header.read(data, pos);
bis.skip(pos + header.getSize());
InflaterInputStream inflater = new InflaterInputStream( bis );
byte[] chunk = new byte[4096];
int count;
while ((count = inflater.read(chunk)) >=0 ) {
out.write(chunk,0,count);
}
inflater.close();
return out.toByteArray();
| | public void | setData(byte[] data)
int pos = 512; //skip the first 512 bytes - they are MAC specific crap
byte[] compressed = compress(data, pos, data.length-pos);
Header header = new Header();
header.wmfsize = data.length - 512;
//we don't have a PICT reader in java, have to set default image size 200x200
header.bounds = new java.awt.Rectangle(0, 0, 200, 200);
header.size = new java.awt.Dimension(header.bounds.width*Shape.EMU_PER_POINT,
header.bounds.height*Shape.EMU_PER_POINT);
header.zipsize = compressed.length;
byte[] checksum = getChecksum(data);
ByteArrayOutputStream out = new ByteArrayOutputStream();
out.write(checksum);
out.write(new byte[16]); //16-byte prefix which is safe to ignore
header.write(out);
out.write(compressed);
setRawData(out.toByteArray());
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