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- /*
- * $Id: PDFResources.java,v 1.17 2003/03/07 08:25:47 jeremias Exp $
- * ============================================================================
- * The Apache Software License, Version 1.1
- * ============================================================================
- *
- * Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modifica-
- * tion, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * 3. The end-user documentation included with the redistribution, if any, must
- * include the following acknowledgment: "This product includes software
- * developed by the Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself, if
- * and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "FOP" and "Apache Software Foundation" must not be used to
- * endorse or promote products derived from this software without prior
- * written permission. For written permission, please contact
- * apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache", nor may
- * "Apache" appear in their name, without prior written permission of the
- * Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
- * DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * ============================================================================
- *
- * This software consists of voluntary contributions made by many individuals
- * on behalf of the Apache Software Foundation and was originally created by
- * James Tauber <jtauber@jtauber.com>. For more information on the Apache
- * Software Foundation, please see <http://www.apache.org/>.
- */
- package org.apache.fop.pdf;
-
- import org.apache.fop.apps.Document;
- import org.apache.fop.fonts.Typeface;
- import org.apache.fop.fonts.FontDescriptor;
-
- // Java
- import java.util.Iterator;
- import java.util.Map;
- import java.util.Set;
- import java.util.HashMap;
- import java.util.HashSet;
-
- /**
- * class representing a /Resources object.
- *
- * /Resources object contain a list of references to the fonts for the
- * document
- */
- public class PDFResources extends PDFObject {
-
- /**
- * /Font objects keyed by their internal name
- */
- protected Map fonts = new HashMap();
-
- /**
- * Set of XObjects
- */
- protected Set xObjects = new HashSet();
-
- /**
- * Set of patterns
- */
- protected Set patterns = new HashSet();
-
- /**
- * Set of shadings
- */
- protected Set shadings = new HashSet();
-
- /**
- * Set of ExtGStates
- */
- protected Set gstates = new HashSet();
-
- /**
- * create a /Resources object.
- *
- * @param objnum the object's number
- */
- public PDFResources(int objnum) {
- /* generic creation of object */
- super();
- setObjectNumber(objnum);
- }
-
- /**
- * add font object to resources list.
- *
- * @param font the PDFFont to add
- */
- public void addFont(PDFFont font) {
- this.fonts.put(font.getName(), font);
- }
-
- /**
- * Add the fonts in the font info to this PDF document's Font Resources.
- *
- * @param doc PDF document to add fonts to
- * @param fontInfo font info object to get font information from
- */
- public void addFonts(PDFDocument doc, Document fontInfo) {
- Map fonts = fontInfo.getUsedFonts();
- Iterator e = fonts.keySet().iterator();
- while (e.hasNext()) {
- String f = (String)e.next();
- Typeface font = (Typeface)fonts.get(f);
- FontDescriptor desc = null;
- if (font instanceof FontDescriptor) {
- desc = (FontDescriptor)font;
- }
- addFont(doc.getFactory().makeFont(
- f, font.getFontName(), font.getEncoding(), font, desc));
- }
- }
-
- /**
- * Add a PDFGState to the resources.
- *
- * @param gs the PDFGState to add
- */
- public void addGState(PDFGState gs) {
- this.gstates.add(gs);
- }
-
- /**
- * Add a Shading to the resources.
- *
- * @param theShading the shading to add
- */
- public void addShading(PDFShading theShading) {
- this.shadings.add(theShading);
- }
-
- /**
- * Add the pattern to the resources.
- *
- * @param thePattern the pattern to add
- */
- public void addPattern(PDFPattern thePattern) {
- this.patterns.add(thePattern);
- }
-
- /**
- * Add an XObject to the resources.
- *
- * @param xObject the XObject to add
- */
- public void addXObject(PDFXObject xObject) {
- this.xObjects.add(xObject);
- }
-
- /**
- * represent the object in PDF
- * This adds the references to all the objects in the current
- * resource context.
- *
- * @return the PDF
- * @see org.apache.fop.pdf.PDFObject#toPDFString()
- */
- public String toPDFString() {
- StringBuffer p = new StringBuffer(128);
- p.append(getObjectID() + "<<\n");
- if (!this.fonts.isEmpty()) {
- p.append("/Font <<\n");
-
- /* construct PDF dictionary of font object references */
- Iterator fontIterator = this.fonts.keySet().iterator();
- while (fontIterator.hasNext()) {
- String fontName = (String)fontIterator.next();
- p.append(" /" + fontName + " "
- + ((PDFFont)this.fonts.get(fontName)).referencePDF()
- + "\n");
- }
-
- p.append(">>\n");
- }
-
- PDFShading currentShading = null;
- if (!this.shadings.isEmpty()) {
- p.append("/Shading <<\n");
-
- for (Iterator iter = shadings.iterator(); iter.hasNext();) {
- currentShading = (PDFShading)iter.next();
- p.append(" /" + currentShading.getName() + " "
- + currentShading.referencePDF() + " "); // \n ??????
- }
-
- p.append(">>\n");
- }
- // "free" the memory. Sorta.
- currentShading = null;
-
- PDFPattern currentPattern = null;
- if (!this.patterns.isEmpty()) {
- p.append("/Pattern <<\n");
-
- for (Iterator iter = patterns.iterator(); iter.hasNext();) {
- currentPattern = (PDFPattern)iter.next();
- p.append(" /" + currentPattern.getName() + " "
- + currentPattern.referencePDF() + " ");
- }
-
- p.append(">>\n");
- }
- // "free" the memory. Sorta.
- currentPattern = null;
-
- p.append("/ProcSet [ /PDF /ImageB /ImageC /Text ]\n");
-
- if (this.xObjects != null && !this.xObjects.isEmpty()) {
- p = p.append("/XObject <<\n");
- for (Iterator iter = xObjects.iterator(); iter.hasNext();) {
- PDFXObject xobj = (PDFXObject)iter.next();
- p = p.append(" /Im" + xobj.getXNumber() + " "
- + xobj.referencePDF()
- + "\n");
- }
- p = p.append(">>\n");
- }
-
- if (!this.gstates.isEmpty()) {
- p = p.append("/ExtGState <<\n");
- for (Iterator iter = gstates.iterator(); iter.hasNext();) {
- PDFGState gs = (PDFGState)iter.next();
- p = p.append(" /" + gs.getName() + " "
- + gs.referencePDF()
- + "\n");
- }
- p = p.append(">>\n");
- }
-
- p = p.append(">>\nendobj\n");
-
- return p.toString();
- }
-
- }
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