diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PageResources.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PageResources.java | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PageResources.java b/src/main/java/com/lowagie/text/pdf/PageResources.java new file mode 100644 index 0000000..e065945 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PageResources.java @@ -0,0 +1,187 @@ +/*
+ * $Id: PageResources.java,v 1.14 2005/10/17 17:35:34 psoares33 Exp $
+ *
+ * Copyright 2003-2005 by Paulo Soares.
+ *
+ * The contents of this file are subject to the Mozilla Public License Version 1.1
+ * (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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the License.
+ *
+ * The Original Code is 'iText, a free JAVA-PDF library'.
+ *
+ * The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
+ * the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
+ * All Rights Reserved.
+ * Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
+ * are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
+ *
+ * Contributor(s): all the names of the contributors are added in the source code
+ * where applicable.
+ *
+ * Alternatively, the contents of this file may be used under the terms of the
+ * LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
+ * provisions of LGPL are applicable instead of those above. If you wish to
+ * allow use of your version of this file only under the terms of the LGPL
+ * License and not to allow others to use your version of this file under
+ * the MPL, indicate your decision by deleting the provisions above and
+ * replace them with the notice and other provisions required by the LGPL.
+ * If you do not delete the provisions above, a recipient may use your version
+ * of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of the MPL as stated above or under the terms of the GNU
+ * Library General Public License as published by the Free Software Foundation;
+ * either version 2 of the License, or 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 Library general Public License for more
+ * details.
+ *
+ * If you didn't download this code from the following link, you should check if
+ * you aren't using an obsolete version:
+ * http://www.lowagie.com/iText/
+ */
+package com.lowagie.text.pdf;
+
+import java.util.HashMap;
+import java.util.Iterator;
+
+class PageResources {
+
+ protected PdfDictionary fontDictionary = new PdfDictionary();
+ protected PdfDictionary xObjectDictionary = new PdfDictionary();
+ protected PdfDictionary colorDictionary = new PdfDictionary();
+ protected PdfDictionary patternDictionary = new PdfDictionary();
+ protected PdfDictionary shadingDictionary = new PdfDictionary();
+ protected PdfDictionary extGStateDictionary = new PdfDictionary();
+ protected PdfDictionary propertyDictionary = new PdfDictionary();
+ protected HashMap forbiddenNames;
+ protected PdfDictionary originalResources;
+ protected int namePtr[] = {0};
+ protected HashMap usedNames;
+
+ PageResources() {
+ }
+
+ void setOriginalResources(PdfDictionary resources, int newNamePtr[]) {
+ if (newNamePtr != null)
+ namePtr = newNamePtr;
+ originalResources = resources;
+ forbiddenNames = new HashMap();
+ usedNames = new HashMap();
+ if (resources == null)
+ return;
+ for (Iterator i = resources.getKeys().iterator(); i.hasNext();) {
+ PdfObject sub = PdfReader.getPdfObject(resources.get((PdfName)i.next()));
+ if (sub.isDictionary()) {
+ PdfDictionary dic = (PdfDictionary)sub;
+ for (Iterator j = dic.getKeys().iterator(); j.hasNext();) {
+ forbiddenNames.put(j.next(), null);
+ }
+ }
+ }
+ }
+
+ PdfName translateName(PdfName name) {
+ PdfName translated = name;
+ if (forbiddenNames != null) {
+ translated = (PdfName)usedNames.get(name);
+ if (translated == null) {
+ while (true) {
+ translated = new PdfName("Xi" + (namePtr[0]++));
+ if (!forbiddenNames.containsKey(translated))
+ break;
+ }
+ usedNames.put(name, translated);
+ }
+ }
+ return translated;
+ }
+
+ PdfName addFont(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ fontDictionary.put(name, reference);
+ return name;
+ }
+
+ PdfName addXObject(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ xObjectDictionary.put(name, reference);
+ return name;
+ }
+
+ PdfName addColor(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ colorDictionary.put(name, reference);
+ return name;
+ }
+
+ void addDefaultColor(PdfName name, PdfObject obj) {
+ if (obj == null || obj.isNull())
+ colorDictionary.remove(name);
+ else
+ colorDictionary.put(name, obj);
+ }
+
+ void addDefaultColor(PdfDictionary dic) {
+ colorDictionary.merge(dic);
+ }
+
+ void addDefaultColorDiff(PdfDictionary dic) {
+ colorDictionary.mergeDifferent(dic);
+ }
+
+ PdfName addShading(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ shadingDictionary.put(name, reference);
+ return name;
+ }
+
+ PdfName addPattern(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ patternDictionary.put(name, reference);
+ return name;
+ }
+
+ PdfName addExtGState(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ extGStateDictionary.put(name, reference);
+ return name;
+ }
+
+ PdfName addProperty(PdfName name, PdfIndirectReference reference) {
+ name = translateName(name);
+ propertyDictionary.put(name, reference);
+ return name;
+ }
+
+ PdfDictionary getResources() {
+ PdfResources resources = new PdfResources();
+ if (originalResources != null)
+ resources.putAll(originalResources);
+ resources.put(PdfName.PROCSET, new PdfLiteral("[/PDF /Text /ImageB /ImageC /ImageI]"));
+ resources.add(PdfName.FONT, fontDictionary);
+ resources.add(PdfName.XOBJECT, xObjectDictionary);
+ resources.add(PdfName.COLORSPACE, colorDictionary);
+ resources.add(PdfName.PATTERN, patternDictionary);
+ resources.add(PdfName.SHADING, shadingDictionary);
+ resources.add(PdfName.EXTGSTATE, extGStateDictionary);
+ resources.add(PdfName.PROPERTIES, propertyDictionary);
+ return resources;
+ }
+
+ boolean hasResources() {
+ return (fontDictionary.size() > 0
+ || xObjectDictionary.size() > 0
+ || colorDictionary.size() > 0
+ || patternDictionary.size() > 0
+ || shadingDictionary.size() > 0
+ || extGStateDictionary.size() > 0
+ || propertyDictionary.size() > 0);
+ }
+}
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