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Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PdfLister.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PdfLister.java | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PdfLister.java b/src/main/java/com/lowagie/text/pdf/PdfLister.java new file mode 100644 index 0000000..c3ecf63 --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfLister.java @@ -0,0 +1,187 @@ +/*
+ * $Id: PdfLister.java,v 1.34 2005/11/01 12:27:05 psoares33 Exp $
+ * $Name: $
+ *
+ * Copyright 1999, 2000, 2001, 2002 Bruno Lowagie
+ *
+ * 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.
+ *
+ * This class by Mark Thompson. Copyright (C) 2002 Mark Thompson
+ *
+ * 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.io.*;
+import java.util.Iterator;
+/**
+ * List a PDF file in human-readable form (for debugging reasons mostly)
+ * @author Mark Thompson
+ */
+
+public class PdfLister {
+
+ /** the printStream you want to write the output to. */
+ PrintStream out;
+
+ /**
+ * Create a new lister object.
+ * @param out
+ */
+ public PdfLister(PrintStream out) {
+ this.out = out;
+ }
+
+ /**
+ * Visualizes a PDF object.
+ * @param object a com.lowagie.text.pdf object
+ */
+ public void listAnyObject(PdfObject object)
+ {
+ switch (object.type()) {
+ case PdfObject.ARRAY:
+ listArray((PdfArray)object);
+ break;
+ case PdfObject.DICTIONARY:
+ listDict((PdfDictionary) object);
+ break;
+ case PdfObject.STRING:
+ out.println("(" + object.toString() + ")");
+ break;
+ default:
+ out.println(object.toString());
+ break;
+ }
+ }
+ /**
+ * Visualizes a PdfDictionary object.
+ * @param dictionary a com.lowagie.text.pdf.PdfDictionary object
+ */
+ public void listDict(PdfDictionary dictionary)
+ {
+ out.println("<<");
+ PdfName key;
+ PdfObject value;
+ for (Iterator i = dictionary.getKeys().iterator(); i.hasNext(); ) {
+ key = (PdfName) i.next();
+ value = dictionary.get(key);
+ out.print(key.toString());
+ out.print(' ');
+ listAnyObject(value);
+ }
+ out.println(">>");
+ }
+
+ /**
+ * Visualizes a PdfArray object.
+ * @param array a com.lowagie.text.pdf.PdfArray object
+ */
+ public void listArray(PdfArray array)
+ {
+ out.println('[');
+ for (Iterator i = array.getArrayList().iterator(); i.hasNext(); ) {
+ PdfObject item = (PdfObject)i.next();
+ listAnyObject(item);
+ }
+ out.println(']');
+ }
+ /**
+ * Visualizes a Stream.
+ * @param stream
+ * @param reader
+ */
+ public void listStream(PRStream stream, PdfReaderInstance reader)
+ {
+ try {
+ listDict(stream);
+ out.println("startstream");
+ byte[] b = PdfReader.getStreamBytes(stream);
+// byte buf[] = new byte[Math.min(stream.getLength(), 4096)];
+// int r = 0;
+// stream.openStream(reader);
+// for (;;) {
+// r = stream.readStream(buf, 0, buf.length);
+// if (r == 0) break;
+// out.write(buf, 0, r);
+// }
+// stream.closeStream();
+ int len = b.length - 1;
+ for (int k = 0; k < len; ++k) {
+ if (b[k] == '\r' && b[k + 1] != '\n')
+ b[k] = (byte)'\n';
+ }
+ out.println(new String(b));
+ out.println("endstream");
+ } catch (IOException e) {
+ System.err.println("I/O exception: " + e);
+// } catch (java.util.zip.DataFormatException e) {
+// System.err.println("Data Format Exception: " + e);
+ }
+ }
+ /**
+ * Visualizes an imported page
+ * @param iPage
+ */
+ public void listPage(PdfImportedPage iPage)
+ {
+ int pageNum = iPage.getPageNumber();
+ PdfReaderInstance readerInst = iPage.getPdfReaderInstance();
+ PdfReader reader = readerInst.getReader();
+
+ PdfDictionary page = reader.getPageN(pageNum);
+ listDict(page);
+ PdfObject obj = PdfReader.getPdfObject(page.get(PdfName.CONTENTS));
+ switch (obj.type) {
+ case PdfObject.STREAM:
+ listStream((PRStream)obj, readerInst);
+ break;
+ case PdfObject.ARRAY:
+ for (Iterator i = ((PdfArray)obj).getArrayList().iterator(); i.hasNext();) {
+ PdfObject o = PdfReader.getPdfObject((PdfObject)i.next());
+ listStream((PRStream)o, readerInst);
+ out.println("-----------");
+ }
+ break;
+ }
+ }
+}
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