* create a FormXObject with the given number and name and load the
* image in the object
*
- * @param number the pdf object number
* @param xnumber the pdf object X number
* @param cont the pdf stream contents
* @param ref the resource PDF reference
*/
- public PDFFormXObject(int number, int xnumber, PDFStream cont, String ref) {
- super(number, xnumber, null);
+ public PDFFormXObject(int xnumber, PDFStream cont, String ref) {
+ super(xnumber, null);
contents = cont;
resRef = ref;
}
protected int output(OutputStream stream) throws IOException {
int length = 0;
- String dictEntries = contents.applyFilters();
+ String dictEntries = getFilterList().buildFilterDictEntries();
- String p = this.number + " " + this.generation + " obj\n";
- p = p + "<</Type /XObject\n";
- p = p + "/Subtype /Form\n";
- p = p + "/FormType 1\n";
- p = p + "/BBox [0 0 1000 1000]\n";
- p = p + "/Matrix [1 0 0 1 0 0]\n";
- p = p + "/Resources " + resRef + "\n";
- p = p + "/Length " + (contents.getDataLength() + 1) + "\n";
+ final StreamCache encodedStream = encodeStream();
- p = p + dictEntries;
- p = p + ">>\n";
+ StringBuffer sb = new StringBuffer(128);
+ sb.append(getObjectID());
+ sb.append("<</Type /XObject\n");
+ sb.append("/Subtype /Form\n");
+ sb.append("/FormType 1\n");
+ sb.append("/BBox [0 0 1000 1000]\n");
+ sb.append("/Matrix [1 0 0 1 0 0]\n");
+ sb.append("/Resources " + resRef + "\n");
+ sb.append("/Length " + (encodedStream.getSize() + 1) + "\n");
+
+ sb.append(dictEntries);
+ sb.append(">>\n");
// push the pdf dictionary on the writer
- byte[] pdfBytes = p.getBytes();
+ byte[] pdfBytes = encode(sb.toString());
stream.write(pdfBytes);
length += pdfBytes.length;
- // push all the image data on the writer
- // and takes care of length for trailer
- length += contents.outputStreamData(stream);
- pdfBytes = ("endobj\n").getBytes();
+ //Send encoded stream to target OutputStream
+ length += outputStreamData(encodedStream, stream);
+ encodedStream.clear(); //Encoded stream can now be discarded
+
+ pdfBytes = encode("endobj\n");
stream.write(pdfBytes);
length += pdfBytes.length;
+
// let it gc
// this object is retained as a reference to inserting
// the same image but the image data is no longer needed
contents = null;
return length;
}
+
+ /**
+ * @see org.apache.fop.pdf.PDFStream#outputRawStreamData(OutputStream)
+ */
+ protected void outputRawStreamData(OutputStream out) throws IOException {
+ contents.outputRawStreamData(out);
+ }
+
+
}
package org.apache.fop.pdf;
import java.awt.color.ICC_Profile;
+import java.io.IOException;
+import java.io.OutputStream;
/**
* Special PDFStream for ICC profiles (color profiles).
private PDFColorSpace pdfColorSpace;
/**
- * @see org.apache.fop.pdf.PDFObject#PDFObject(int)
+ * @see org.apache.fop.pdf.PDFObject#PDFObject()
*/
- public PDFICCStream(int num) {
- super(num);
+ public PDFICCStream() {
+ super();
cp = null;
}
* @see org.apache.fop.pdf.PDFObject#output(OutputStream)
*/
protected int output(java.io.OutputStream stream)
- throws java.io.IOException {
-
- setData(cp.getData());
-
- int length = 0;
- String filterEntry = applyFilters();
- StringBuffer pb = new StringBuffer();
- pb.append(this.number).append(" ").append(this.generation).append(" obj\n<< ");
- pb.append("/N ").append(cp.getNumComponents()).append(" ");
+ throws java.io.IOException {
+ int length = super.output(stream);
+ this.cp = null; //Free ICC stream when it's not used anymore
+ return length;
+ }
+
+ /**
+ * @see org.apache.fop.pdf.PDFStream#outputRawStreamData(OutputStream)
+ */
+ protected void outputRawStreamData(OutputStream out) throws IOException {
+ cp.write(out);
+ }
+
+ /**
+ * @see org.apache.fop.pdf.AbstractPDFStream#buildStreamDict(String)
+ */
+ protected String buildStreamDict(String lengthEntry) {
+ final String filterEntry = getFilterList().buildFilterDictEntries();
+ final StringBuffer sb = new StringBuffer(128);
+ sb.append(getObjectID());
+ sb.append("<< ");
+ sb.append("/N " + cp.getNumComponents());
if (pdfColorSpace != null) {
- pb.append("/Alternate /").append(pdfColorSpace.getColorSpacePDFString()).append(" ");
+ sb.append("\n/Alternate /" + pdfColorSpace.getColorSpacePDFString() + " ");
}
- pb.append("/Length ").append((data.getSize() + 1)).append(" ").append(filterEntry);
- pb.append(" >>\n");
- byte[] p = pb.toString().getBytes();
- stream.write(p);
- length += p.length;
- length += outputStreamData(stream);
- p = "endobj\n".getBytes();
- stream.write(p);
- length += p.length;
- return length;
+ sb.append("\n/Length " + lengthEntry);
+ sb.append("\n" + filterEntry);
+ sb.append("\n>>\n");
+ return sb.toString();
}
+
}
* This is used as a reference for inserting the same image in the
* document in another place.
*/
-public class PDFXObject extends PDFObject {
+public class PDFXObject extends AbstractPDFStream {
+
private PDFImage pdfimage;
private int xnum;
* create an XObject with the given number and name and load the
* image in the object
*
- * @param number the pdf object number
* @param xnumber the pdf object X number
* @param img the pdf image that contains the image data
*/
- public PDFXObject(int number, int xnumber, PDFImage img) {
- super(number);
+ public PDFXObject(int xnumber, PDFImage img) {
+ super();
this.xnum = xnumber;
pdfimage = img;
}
* @return the length of the data written
*/
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() + 1) + "\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;
- }
+ int length = super.output(stream);
+
// let it gc
// this object is retained as a reference to inserting
// the same image but the image data is no longer needed
return length;
}
- byte[] toPDF() {
- return null;
+ /**
+ * @see org.apache.fop.pdf.AbstractPDFStream#buildStreamDict(String)
+ */
+ protected String buildStreamDict(String lengthEntry) {
+ String dictEntries = getFilterList().buildFilterDictEntries();
+ if (pdfimage.isPS()) {
+ return buildDictionaryFromPS(lengthEntry, dictEntries);
+ } else {
+ return buildDictionaryFromImage(lengthEntry, dictEntries);
+ }
+ }
+
+ private String buildDictionaryFromPS(String lengthEntry,
+ String dictEntries) {
+ StringBuffer sb = new StringBuffer(128);
+ sb.append(getObjectID());
+ sb.append("<</Type /XObject\n");
+ sb.append("/Subtype /PS\n");
+ sb.append("/Length " + lengthEntry);
+
+ sb.append(dictEntries);
+ sb.append("\n>>\n");
+ return sb.toString();
}
- private int outputEPSImage(OutputStream stream) throws IOException {
- int length = 0;
- int i = 0;
-
- PDFStream imgStream = pdfimage.getDataStream();
- String dictEntries = imgStream.applyFilters();
+ private String buildDictionaryFromImage(String lengthEntry,
+ String dictEntries) {
+ StringBuffer sb = new StringBuffer(128);
+ sb.append(getObjectID());
+ sb.append("<</Type /XObject\n");
+ sb.append("/Subtype /Image\n");
+ sb.append("/Name /Im" + xnum + "\n");
+ sb.append("/Length " + lengthEntry + "\n");
+ sb.append("/Width " + pdfimage.getWidth() + "\n");
+ sb.append("/Height " + pdfimage.getHeight() + "\n");
+ sb.append("/BitsPerComponent " + pdfimage.getBitsPerPixel() + "\n");
+
+ PDFICCStream pdfICCStream = pdfimage.getICCStream();
+ if (pdfICCStream != null) {
+ sb.append("/ColorSpace [/ICCBased "
+ + pdfICCStream.referencePDF() + "]\n");
+ } else {
+ PDFColorSpace cs = pdfimage.getColorSpace();
+ sb.append("/ColorSpace /" + cs.getColorSpacePDFString()
+ + "\n");
+ }
- String p = this.number + " " + this.generation + " obj\n";
- p = p + "<</Type /XObject\n";
- p = p + "/Subtype /PS\n";
- p = p + "/Length " + (imgStream.getDataLength() + 1);
+ /* 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) {
+ sb.append("/Decode [ 1.0 0.0 1.0 0.0 1.0 0.0 1.1 0.0 ]\n");
+ }
- p = p + dictEntries;
- p = p + ">>\n";
+ if (pdfimage.isTransparent()) {
+ PDFColor transp = pdfimage.getTransparentColor();
+ sb.append("/Mask ["
+ + transp.red255() + " "
+ + transp.red255() + " "
+ + transp.green255() + " "
+ + transp.green255() + " "
+ + transp.blue255() + " "
+ + transp.blue255() + "]\n");
+ }
+ String ref = pdfimage.getSoftMask();
+ if (ref != null) {
+ sb.append("/SMask " + ref + "\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);
+ sb.append(dictEntries);
+ sb.append("\n>>\n");
+ return sb.toString();
+ }
+
+ /**
+ * @see org.apache.fop.pdf.PDFStream#outputRawStreamData(OutputStream)
+ */
+ protected void outputRawStreamData(OutputStream out) throws IOException {
+ pdfimage.outputContents(out);
+ }
- pdfBytes = ("endobj\n").getBytes();
- stream.write(pdfBytes);
- length += pdfBytes.length;
+ /**
+ * @see org.apache.fop.pdf.AbstractPDFStream#getSizeHint()
+ */
+ protected int getSizeHint() throws IOException {
+ return 0;
+ }
- return length;
+ /**
+ * @see org.apache.fop.pdf.AbstractPDFStream#prepareImplicitFilters()
+ */
+ protected void prepareImplicitFilters() {
+ if (pdfimage.isDCT()) {
+ getFilterList().ensureDCTFilterInPlace();
+ }
+ }
+
+ /**
+ * This sets up the default filters for XObjects. It uses the PDFImage
+ * instance to determine what default filters to apply.
+ * @see org.apache.fop.pdf.AbstractPDFStream#setupFilterList()
+ */
+ protected void setupFilterList() {
+ if (!getFilterList().isInitialized()) {
+ getFilterList().addDefaultFilters(
+ getDocumentSafely().getFilterMap(),
+ pdfimage.getFilterHint());
+ }
+ super.setupFilterList();
}
+
}
projects / xmlgraphics-fop.git / commitdiff