diff options
Diffstat (limited to 'src/main/java/com/lowagie/text/pdf/PdfContents.java')
| -rw-r--r-- | src/main/java/com/lowagie/text/pdf/PdfContents.java | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/main/java/com/lowagie/text/pdf/PdfContents.java b/src/main/java/com/lowagie/text/pdf/PdfContents.java new file mode 100644 index 0000000..786da2f --- /dev/null +++ b/src/main/java/com/lowagie/text/pdf/PdfContents.java @@ -0,0 +1,147 @@ +/*
+ * $Id: PdfContents.java,v 1.58 2005/05/04 14:31:50 blowagie 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.
+ *
+ * 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 com.lowagie.text.DocWriter;
+import com.lowagie.text.Document;
+import com.lowagie.text.Rectangle;
+import java.io.ByteArrayOutputStream;
+import java.io.OutputStream;
+import java.util.zip.DeflaterOutputStream;
+
+/**
+ * <CODE>PdfContents</CODE> is a <CODE>PdfStream</CODE> containing the contents (text + graphics) of a <CODE>PdfPage</CODE>.
+ */
+
+class PdfContents extends PdfStream {
+
+ static final byte SAVESTATE[] = DocWriter.getISOBytes("q\n");
+ static final byte RESTORESTATE[] = DocWriter.getISOBytes("Q\n");
+ static final byte ROTATE90[] = DocWriter.getISOBytes("0 1 -1 0 ");
+ static final byte ROTATE180[] = DocWriter.getISOBytes("-1 0 0 -1 ");
+ static final byte ROTATE270[] = DocWriter.getISOBytes("0 -1 1 0 ");
+ static final byte ROTATEFINAL[] = DocWriter.getISOBytes(" cm\n");
+ // constructor
+
+/**
+ * Constructs a <CODE>PdfContents</CODE>-object, containing text and general graphics.
+ *
+ * @param under the direct content that is under all others
+ * @param content the graphics in a page
+ * @param text the text in a page
+ * @param secondContent the direct content that is over all others
+ * @throws BadPdfFormatException on error
+ */
+
+ PdfContents(PdfContentByte under, PdfContentByte content, PdfContentByte text, PdfContentByte secondContent, Rectangle page) throws BadPdfFormatException {
+ super();
+ try {
+ OutputStream out = null;
+ streamBytes = new ByteArrayOutputStream();
+ if (Document.compress)
+ {
+ compressed = true;
+ out = new DeflaterOutputStream(streamBytes);
+ }
+ else
+ out = streamBytes;
+ int rotation = page.getRotation();
+ switch (rotation) {
+ case 90:
+ out.write(ROTATE90);
+ out.write(DocWriter.getISOBytes(ByteBuffer.formatDouble(page.top())));
+ out.write(' ');
+ out.write('0');
+ out.write(ROTATEFINAL);
+ break;
+ case 180:
+ out.write(ROTATE180);
+ out.write(DocWriter.getISOBytes(ByteBuffer.formatDouble(page.right())));
+ out.write(' ');
+ out.write(DocWriter.getISOBytes(ByteBuffer.formatDouble(page.top())));
+ out.write(ROTATEFINAL);
+ break;
+ case 270:
+ out.write(ROTATE270);
+ out.write('0');
+ out.write(' ');
+ out.write(DocWriter.getISOBytes(ByteBuffer.formatDouble(page.right())));
+ out.write(ROTATEFINAL);
+ break;
+ }
+ if (under.size() > 0) {
+ out.write(SAVESTATE);
+ under.getInternalBuffer().writeTo(out);
+ out.write(RESTORESTATE);
+ }
+ if (content.size() > 0) {
+ out.write(SAVESTATE);
+ content.getInternalBuffer().writeTo(out);
+ out.write(RESTORESTATE);
+ }
+ if (text != null) {
+ out.write(SAVESTATE);
+ text.getInternalBuffer().writeTo(out);
+ out.write(RESTORESTATE);
+ }
+ if (secondContent.size() > 0) {
+ secondContent.getInternalBuffer().writeTo(out);
+ }
+ out.close();
+ }
+ catch (Exception e) {
+ throw new BadPdfFormatException(e.getMessage());
+ }
+ put(PdfName.LENGTH, new PdfNumber(streamBytes.size()));
+ if (compressed)
+ put(PdfName.FILTER, PdfName.FLATEDECODE);
+ }
+}
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