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An Open Source JavaFX PDF Viewer
/*
* ===========================================
* Java Pdf Extraction Decoding Access Library
* ===========================================
*
* Project Info: http://www.idrsolutions.com
* Help section for developers at http://www.idrsolutions.com/support/
*
* (C) Copyright 1997-2015 IDRsolutions and Contributors.
*
* This file is part of JPedal/JPDF2HTML5
*
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---------------
* DeviceNColorSpace.java
* ---------------
*/
package org.jpedal.color;
import java.util.Map;
import java.util.HashMap;
import java.awt.image.BufferedImage;
import java.awt.image.Raster;
import java.awt.image.DataBufferByte;
import java.awt.image.DataBuffer;
import org.jpedal.io.PdfObjectReader;
import org.jpedal.objects.raw.PdfObject;
/**
* handle Device ColorSpace
*/
public class DeviceNColorSpace extends SeparationColorSpace {
private static final long serialVersionUID = -1372268945371555187L;
private final Map cache=new HashMap();
public DeviceNColorSpace(final PdfObjectReader currentPdfFile, final PdfObject colorSpace) {
setType(ColorSpaces.DeviceN);
processColorToken(currentPdfFile, colorSpace);
}
/** set color (translate and set in alt colorspace) */
@Override
public void setColor(final String[] operand, final int opCount) {
final float[] values = new float[opCount];
for(int j=0;j3) {
opNumbers=3;
}
for(int i=0;i> 16) & 255);
final int g = ((rawValue >> 8) & 255);
final int b = ((rawValue) & 255);
altCS.currentColor=new PdfColor(r,g,b);
}else if(this.cmykMapping==CMYB && opCount==4){ //special case coded in
final float[] newOp={raw[0],raw[1],raw[2],raw[3]};
altCS.setColor(newOp,newOp.length);
}else if(this.cmykMapping==MYK && opCount==3){ //special case coded in
final float[] newOp={0.0f,raw[0],raw[1],raw[2]};
altCS.setColor(newOp,newOp.length);
}else if(this.cmykMapping==CMY && opCount==3){ //special case coded in
final float[] newOp={raw[0],raw[1],raw[2],0.0f};
altCS.setColor(newOp,newOp.length);
}else if(this.cmykMapping==CMK && opCount==3){ //special case coded in
final float[] newOp={raw[0],raw[1],0f, raw[2]};
altCS.setColor(newOp,newOp.length);
}else if(this.cmykMapping==CY && opCount==2){ //special case coded in
final float[] newOp={raw[0],0,raw[1], 0};
altCS.setColor(newOp,newOp.length);
}else if(this.cmykMapping==CM && opCount==2){ //special case coded in
final float[] newOp={raw[0],raw[1],0, 0};
altCS.setColor(newOp,newOp.length);
}else if(this.cmykMapping==MY && opCount==2){ //special case coded in
final float[] newOp={0,raw[0],raw[1], 0};
altCS.setColor(newOp,newOp.length);
}else{
final float[] operand =colorMapper.getOperandFloat(raw);
altCS.setColor(operand,operand.length);
}
if(!isCached){ //not used except as flag
altCS.getColor().getRGB();
final int rawValue = altCS.getColor().getRGB();
//store values in cache
cache.put((lookup[0] << 16) + (lookup[1] << 8) + lookup[2], rawValue);
}
}
/**
* convert separation stream to RGB and return as an image
*/
@Override
public BufferedImage dataToRGB(final byte[] data, final int w, final int h) {
BufferedImage image;
// try {
//convert data
image=createImage(w, h, data,false);
// } catch (final ee) {
// image = null;
//
// if(LogWriter.isOutput()) {
// LogWriter.writeLog("Couldn't convert DeviceN colorspace data: " + ee);
// }
// }
return image;
}
/**
* convert data stream to srgb image
*/
@Override
public BufferedImage JPEGToRGBImage(final byte[] data, final int ww, final int hh, final float[] decodeArray, final int pX, final int pY, final boolean arrayInverted, final PdfObject XObject) {
BufferedImage image=null;
// try{
Raster ras= JPEGDecoder.getRasterFromJPEG(data, "JPEG");
if(ras!=null){
ras=cleanupRaster(ras,pX,pY, componentCount);
final int w=ras.getWidth();
final int h=ras.getHeight();
final DataBufferByte rgb = (DataBufferByte) ras.getDataBuffer();
//convert the image
image=createImage(w, h, rgb.getData(),arrayInverted);
}
// } catch (final Exception ee) {
//
// if(LogWriter.isOutput()) {
// LogWriter.writeLog("Couldn't read JPEG, not even raster: " + ee);
// }
//
// ee.printStackTrace();
// }
return image;
}
/**
* turn raw data into an image
*/
@Override
BufferedImage createImage(final int w, final int h, final byte[] rawData, final boolean arrayInverted) {
final BufferedImage image;
final byte[] rgb=new byte[w*h*3];
final int bytesCount=rawData.length;
//convert data to RGB format
final int byteCount= rawData.length/componentCount;
final float[] values=new float[componentCount];
int j=0,j2=0;
for(int i=0;i=bytesCount) {
break;
}
for(int comp=0;comp>16) & 0xFF);
rgb[j2+1]=(byte) ((foreground>>8) & 0xFF);
rgb[j2+2]=(byte) ((foreground) & 0xFF);
j2 += 3;
}
//create the RGB image
final int[] bands = {0,1,2};
image =new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);
final DataBuffer dataBuf=new DataBufferByte(rgb, rgb.length);
final Raster raster =Raster.createInterleavedRaster(dataBuf,w,h,w*3,3,bands,null);
image.setData(raster);
return image;
}
}