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/*
* $Id$
* Copyright (C) 2001 The Apache Software Foundation. All rights reserved.
* For details on use and redistribution please refer to the
* LICENSE file included with these sources.
*/
/* modified by JKT to integrate with 0.12.0 */
/* modified by Eric SCHAEFFER to integrate with 0.13.0 */
package org.apache.fop.pdf;
// Java
import java.io.IOException;
import java.io.OutputStream;
import java.io.ByteArrayOutputStream;
/**
* PDF XObject
*
* A derivative of the PDF Object, is a PDF Stream that has not only a
* dictionary but a stream of image data.
* the dictionary just provides information like the stream length
*/
public class PDFXObject extends PDFObject {
PDFImage pdfimage;
int Xnum;
/**
* create an XObject with the given number and name and load the
* image in the object
*/
public PDFXObject(int number, int Xnumber, PDFImage img) {
super(number);
this.Xnum = Xnumber;
pdfimage = img;
}
/**
* @return the PDF XObject number
*/
public int getXNumber() {
return this.Xnum;
}
/**
* represent as PDF
*/
protected int output(OutputStream stream) throws IOException {
int length = 0;
int i = 0;
if (pdfimage.isPS()) {
length = outputEPSImage(stream);
} else {
PDFStream imgStream = pdfimage.getDataStream();
String dictEntries = imgStream.applyFilters();
String p = this.number + " " + this.generation + " obj\n";
p = p + "<</Type /XObject\n";
p = p + "/Subtype /Image\n";
p = p + "/Name /Im" + Xnum + "\n";
p = p + "/Length " + imgStream.getDataLength() + "\n";
p = p + "/Width " + pdfimage.getWidth() + "\n";
p = p + "/Height " + pdfimage.getHeight() + "\n";
p = p + "/BitsPerComponent " + pdfimage.getBitsPerPixel() +
"\n";
PDFICCStream pdfICCStream = pdfimage.getICCStream();
if (pdfICCStream != null) {
p = p + "/ColorSpace [/ICCBased " +
pdfICCStream.referencePDF() + "]\n";
} else {
PDFColorSpace cs = pdfimage.getColorSpace();
p = p + "/ColorSpace /" + cs.getColorSpacePDFString() +
"\n";
}
/* PhotoShop generates CMYK values that's inverse,
this will invert the values - too bad if it's not
a PhotoShop image...
*/
if (pdfimage.getColorSpace().getColorSpace() ==
PDFColorSpace.DEVICE_CMYK) {
p = p + "/Decode [ 1.0 0.0 1.0 0.0 1.0 0.0 1.1 0.0 ]\n";
}
if (pdfimage.isTransparent()) {
PDFColor transp = pdfimage.getTransparentColor();
p = p + "/Mask [" + transp.red255() + " " +
transp.red255() + " " + transp.green255() +
" " + transp.green255() + " " +
transp.blue255() + " " + transp.blue255() + "]\n";
}
String ref = pdfimage.getSoftMask();
if (ref != null) {
p = p + "/SMask " + ref + "\n";
}
p = p + dictEntries;
p = p + ">>\n";
// push the pdf dictionary on the writer
byte[] pdfBytes = p.getBytes();
stream.write(pdfBytes);
length += pdfBytes.length;
// push all the image data on the writer
// and takes care of length for trailer
length += imgStream.outputStreamData(stream);
pdfBytes = ("endobj\n").getBytes();
stream.write(pdfBytes);
length += pdfBytes.length;
}
// let it gc
pdfimage = null;
return length;
}
byte[] toPDF() {
return null;
}
private int outputEPSImage(OutputStream stream) throws IOException {
int length = 0;
int i = 0;
PDFStream imgStream = pdfimage.getDataStream();
String dictEntries = imgStream.applyFilters();
String p = this.number + " " + this.generation + " obj\n";
p = p + "<</Type /XObject\n";
p = p + "/Subtype /PS\n";
p = p + "/Length " + imgStream.getDataLength();
p = p + dictEntries;
p = p + ">>\n";
// push the pdf dictionary on the writer
byte[] pdfBytes = p.getBytes();
stream.write(pdfBytes);
length += pdfBytes.length;
// push all the image data on the writer and takes care of length for trailer
length += imgStream.outputStreamData(stream);
pdfBytes = ("endobj\n").getBytes();
stream.write(pdfBytes);
length += pdfBytes.length;
return length;
}
}
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