| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * 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, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* $Id$ */ |
| |
| package org.apache.fop.pdf; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| |
| import org.apache.xmlgraphics.java2d.color.profile.ColorProfileUtil; |
| |
| import org.apache.fop.fonts.FontDescriptor; |
| import org.apache.fop.fonts.FontInfo; |
| import org.apache.fop.fonts.Typeface; |
| import org.apache.fop.fonts.base14.Symbol; |
| import org.apache.fop.fonts.base14.ZapfDingbats; |
| |
| /** |
| * Class representing a /Resources object. |
| * |
| * /Resources object contain a list of references to the fonts for the |
| * document |
| */ |
| public class PDFResources extends PDFDictionary { |
| |
| /** |
| * /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(); |
| |
| /** Map of color spaces (key: color space name) */ |
| protected Map colorSpaces = new HashMap(); |
| |
| /** Map of ICC color spaces (key: ICC profile description) */ |
| protected Map iccColorSpaces = new HashMap(); |
| |
| /** |
| * 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, FontInfo fontInfo) { |
| Map<String, Typeface> usedFonts = fontInfo.getUsedFonts(); |
| for (String f : usedFonts.keySet()) { |
| Typeface font = usedFonts.get(f); |
| |
| //Check if the font actually had any mapping operations. If not, it is an indication |
| //that it has never actually been used and therefore doesn't have to be embedded. |
| if (font.hadMappingOperations()) { |
| FontDescriptor desc = null; |
| if (font instanceof FontDescriptor) { |
| desc = (FontDescriptor)font; |
| } |
| String encoding = font.getEncodingName(); |
| if (font instanceof Symbol || font instanceof ZapfDingbats) { |
| encoding = null; //Symbolic fonts shouldn't specify an encoding value in PDF |
| } |
| addFont(doc.getFactory().makeFont( |
| f, font.getEmbedFontName(), encoding, 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); |
| } |
| |
| /** |
| * Add a ColorSpace dictionary to the resources. |
| * @param colorSpace the color space |
| */ |
| public void addColorSpace(PDFColorSpace colorSpace) { |
| this.colorSpaces.put(new PDFName(colorSpace.getName()), colorSpace); |
| if (colorSpace instanceof PDFICCBasedColorSpace) { |
| PDFICCBasedColorSpace icc = (PDFICCBasedColorSpace)colorSpace; |
| String desc = ColorProfileUtil.getICCProfileDescription( |
| icc.getICCStream().getICCProfile()); |
| this.iccColorSpaces.put(desc, colorSpace); |
| } |
| } |
| |
| /** |
| * Returns a ICCBased color space by profile name. |
| * @param desc the name of the color space |
| * @return the requested color space or null if it wasn't found |
| */ |
| public PDFICCBasedColorSpace getICCColorSpaceByProfileName(String desc) { |
| PDFICCBasedColorSpace cs = (PDFICCBasedColorSpace)this.iccColorSpaces.get(desc); |
| return cs; |
| } |
| |
| /** |
| * Returns a color space by name. |
| * @param name the name of the color space |
| * @return the requested color space or null if it wasn't found |
| */ |
| public PDFColorSpace getColorSpace(PDFName name) { |
| PDFColorSpace cs = (PDFColorSpace)this.colorSpaces.get(name); |
| return cs; |
| } |
| |
| @Override |
| public int output(OutputStream stream) throws IOException { |
| populateDictionary(); |
| return super.output(stream); |
| } |
| |
| private void populateDictionary() { |
| if (!this.fonts.isEmpty()) { |
| PDFDictionary dict = new PDFDictionary(this); |
| /* construct PDF dictionary of font object references */ |
| Iterator fontIterator = this.fonts.keySet().iterator(); |
| while (fontIterator.hasNext()) { |
| String fontName = (String)fontIterator.next(); |
| dict.put(fontName, (PDFFont)this.fonts.get(fontName)); |
| } |
| put("Font", dict); |
| } |
| |
| if (!this.shadings.isEmpty()) { |
| PDFDictionary dict = new PDFDictionary(this); |
| for (Iterator iter = shadings.iterator(); iter.hasNext();) { |
| PDFShading currentShading = (PDFShading)iter.next(); |
| dict.put(currentShading.getName(), currentShading); |
| } |
| put("Shading", dict); |
| } |
| |
| if (!this.patterns.isEmpty()) { |
| PDFDictionary dict = new PDFDictionary(this); |
| for (Iterator iter = patterns.iterator(); iter.hasNext();) { |
| PDFPattern currentPattern = (PDFPattern)iter.next(); |
| dict.put(currentPattern.getName(), currentPattern); |
| } |
| put("Pattern", dict); |
| } |
| |
| PDFArray procset = new PDFArray(this); |
| procset.add(new PDFName("PDF")); |
| procset.add(new PDFName("ImageB")); |
| procset.add(new PDFName("ImageC")); |
| procset.add(new PDFName("Text")); |
| put("ProcSet", procset); |
| |
| if (this.xObjects != null && !this.xObjects.isEmpty()) { |
| PDFDictionary dict = new PDFDictionary(this); |
| for (Iterator iter = xObjects.iterator(); iter.hasNext();) { |
| PDFXObject xobj = (PDFXObject)iter.next(); |
| dict.put(xobj.getName().toString(), xobj); |
| } |
| put("XObject", dict); |
| } |
| |
| if (!this.gstates.isEmpty()) { |
| PDFDictionary dict = new PDFDictionary(this); |
| for (Iterator iter = gstates.iterator(); iter.hasNext();) { |
| PDFGState gs = (PDFGState)iter.next(); |
| dict.put(gs.getName(), gs); |
| } |
| put("ExtGState", dict); |
| } |
| |
| if (!this.colorSpaces.isEmpty()) { |
| PDFDictionary dict = new PDFDictionary(this); |
| for (Iterator iter = colorSpaces.values().iterator(); iter.hasNext();) { |
| PDFColorSpace colorSpace = (PDFColorSpace)iter.next(); |
| dict.put(colorSpace.getName(), colorSpace); |
| } |
| put("ColorSpace", dict); |
| } |
| } |
| |
| } |