--- /dev/null
+/*
+
+ ============================================================================
+ The Apache Software License, Version 1.1
+ ============================================================================
+
+ Copyright (C) 1999 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/>.
+
+*/
+
+//Author: Eric SCHAEFFER
+//Description: represent a PDF filter object
+
+package org.apache.fop.pdf;
+
+public class PDFFilter {
+ public static int ASCII_HEX_DECODE = 1;
+ public static int ASCII_85_DECODE = 2;
+ public static int LZW_DECODE = 3;
+ public static int RUN_LENGTH_DECODE = 4;
+ public static int CCITT_FAX_DECODE = 5;
+ public static int DCT_DECODE = 6;
+ public static int FLATE_DECODE = 7;
+
+ // Filter type
+ private int m_filterType;
+
+ // Properties
+
+ // LZW - Flat
+ private Integer m_predictor = null;
+ // LZW - Flat - CCITT
+ private Integer m_columns = null;
+ // LZW - Flat
+ private Integer m_colors = null;
+ // LZW - Flat
+ private Integer m_bitsPerComponent = null;
+ // LZW
+ private Integer m_earlyChange = null;
+ // CCITT
+ private Integer m_k = null;
+ // CCITT
+ private Boolean m_endOfLine = null;
+ // CCITT
+ private Boolean m_encodedByteAlign = null;
+ // CCITT
+ private Integer m_rows = null;
+ // CCITT
+ private Boolean m_endOfBlock = null;
+ // CCITT
+ private Boolean m_blackls1 = null;
+ // CCITT
+ private Integer m_damagedRowsBeforeError = null;
+
+ public PDFFilter(int filter) throws PDFFilterException {
+ if ( (filter != ASCII_HEX_DECODE) &&
+ (filter != ASCII_85_DECODE) &&
+ (filter != LZW_DECODE) &&
+ (filter != RUN_LENGTH_DECODE) &&
+ (filter != CCITT_FAX_DECODE) &&
+ (filter != DCT_DECODE) &&
+ (filter != FLATE_DECODE)
+ ) {
+ throw new PDFFilterException("Filter type not supported");
+ }
+ this.m_filterType = filter;
+ }
+
+ public int getType() {
+ return this.m_filterType;
+ }
+
+ public void setPredictor(Integer value) throws PDFFilterException {
+ if ((this.m_filterType != LZW_DECODE) && (this.m_filterType != FLATE_DECODE)) {
+ throw new PDFFilterException("No Predictor property for this filter");
+ }
+
+ this.m_predictor = value;
+ }
+
+ public Integer getPredictor() throws PDFFilterException {
+ if ((this.m_filterType != LZW_DECODE) && (this.m_filterType != FLATE_DECODE)) {
+ throw new PDFFilterException("No Predictor property for this filter");
+ }
+
+ return this.m_predictor;
+ }
+
+// ... etc ...
+
+ public String toPDF() {
+ String pdf = null;
+/*
+ public static int DCT_DECODE = 6;
+*/
+ if (this.m_filterType == ASCII_HEX_DECODE) {
+ pdf = "/ASCIIHexDecode";
+ } else if (this.m_filterType == ASCII_85_DECODE) {
+ pdf = "/ASCI85Decode";
+ } else if (this.m_filterType == LZW_DECODE) {
+ StringBuffer buffer = new StringBuffer();
+ buffer.append("/LZWDecode");
+
+ if (this.m_predictor != null) {
+ buffer.append(" /Predictor ");
+ buffer.append(this.m_predictor);
+ }
+ if (this.m_columns != null) {
+ buffer.append(" /Columns ");
+ buffer.append(this.m_columns);
+ }
+ if (this.m_colors != null) {
+ buffer.append(" /Colors ");
+ buffer.append(this.m_colors);
+ }
+ if (this.m_bitsPerComponent != null) {
+ buffer.append(" /BitsPerComponent ");
+ buffer.append(this.m_bitsPerComponent);
+ }
+ if (this.m_earlyChange != null) {
+ buffer.append(" /EarlyChange ");
+ buffer.append(this.m_earlyChange);
+ }
+
+ pdf = buffer.toString();
+ } else if (this.m_filterType == FLATE_DECODE) {
+ StringBuffer buffer = new StringBuffer();
+ buffer.append("/FlateDecode");
+
+ if (this.m_predictor != null) {
+ buffer.append(" /Predictor ");
+ buffer.append(this.m_predictor);
+ }
+ if (this.m_columns != null) {
+ buffer.append(" /Columns ");
+ buffer.append(this.m_columns);
+ }
+ if (this.m_colors != null) {
+ buffer.append(" /Colors ");
+ buffer.append(this.m_colors);
+ }
+ if (this.m_bitsPerComponent != null) {
+ buffer.append(" /BitsPerComponent ");
+ buffer.append(this.m_bitsPerComponent);
+ }
+
+ pdf = buffer.toString();
+ } else if (this.m_filterType == RUN_LENGTH_DECODE) {
+ pdf = "/RunLengthDecode";
+ } else if (this.m_filterType == CCITT_FAX_DECODE) {
+ StringBuffer buffer = new StringBuffer();
+ buffer.append("/CCITTFaxDecode");
+
+ if (this.m_k != null) {
+ buffer.append(" /K ");
+ buffer.append(this.m_k);
+ }
+ if (this.m_endOfLine != null) {
+ buffer.append(" /EndOfLine ");
+ buffer.append(this.m_endOfLine);
+ }
+ if (this.m_encodedByteAlign != null) {
+ buffer.append(" /EncodedByteAlign ");
+ buffer.append(this.m_encodedByteAlign);
+ }
+ if (this.m_columns != null) {
+ buffer.append(" /Columns ");
+ buffer.append(this.m_columns);
+ }
+ if (this.m_rows != null) {
+ buffer.append(" /Rows ");
+ buffer.append(this.m_rows);
+ }
+ if (this.m_endOfBlock != null) {
+ buffer.append(" /EndOfBlock ");
+ buffer.append(this.m_endOfBlock);
+ }
+ if (this.m_blackls1 != null) {
+ buffer.append(" /Blackls1 ");
+ buffer.append(this.m_blackls1);
+ }
+ if (this.m_damagedRowsBeforeError != null) {
+ buffer.append(" /DamagedRowsBeforeError ");
+ buffer.append(this.m_damagedRowsBeforeError);
+ }
+
+ pdf = buffer.toString();
+ } else if (this.m_filterType == DCT_DECODE) {
+ pdf = "/DCTDecode";
+ }
+
+ return pdf;
+ }
+
+}
projects / xmlgraphics-fop.git / commitdiff