org.apache.poi.hslf.blip.Bitmap Maven / Gradle / Ivy
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this work for additional information regarding copyright ownership.
The ASF licenses this file to You 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,
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See the License for the specific language governing permissions and
limitations under the License.
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package org.apache.poi.hslf.blip;
import org.apache.poi.hslf.usermodel.PictureData;
import java.io.IOException;
import java.io.ByteArrayOutputStream;
/**
* Represents a bitmap picture data: JPEG or PNG.
* The data is not compressed and the exact file content is written in the stream.
*
* @author Yegor Kozlov
*/
public abstract class Bitmap extends PictureData {
public byte[] getData(){
byte[] rawdata = getRawData();
byte[] imgdata = new byte[rawdata.length-17];
System.arraycopy(rawdata, 17, imgdata, 0, imgdata.length);
return imgdata;
}
public void setData(byte[] data) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte[] checksum = getChecksum(data);
out.write(checksum);
out.write(0);
out.write(data);
setRawData(out.toByteArray());
}
}