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- /*
- * 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.render.ps;
- import static org.junit.Assert.assertEquals;
- import static org.junit.Assert.assertTrue;
-
- import java.io.File;
- import java.io.IOException;
- import java.io.InputStream;
-
- import org.apache.commons.io.IOUtils;
- import org.apache.fop.apps.FOUserAgent;
- import org.apache.fop.render.intermediate.IFContext;
- import org.apache.xmlgraphics.ps.DSCConstants;
- import org.apache.xmlgraphics.ps.PSResource;
- import org.apache.xmlgraphics.ps.dsc.DSCException;
- import org.apache.xmlgraphics.ps.dsc.DSCParser;
- import org.apache.xmlgraphics.ps.dsc.events.DSCCommentPage;
- import org.apache.xmlgraphics.ps.dsc.events.DSCCommentPages;
- import org.apache.xmlgraphics.ps.dsc.events.DSCCommentTitle;
- import org.apache.xmlgraphics.ps.dsc.events.DSCEvent;
- import org.junit.Test;
-
- /**
- * Tests the image handling in PostScript output.
- */
- public class ImageHandlingTestCase extends AbstractPostScriptTestCase {
-
- /**
- * Tests JPEG handling.
- * @throws Exception if an error occurs
- */
- @Test
- public void testJPEGImageLevel3() throws Exception {
- innerTestJPEGImage(3);
- }
-
- /**
- * Tests JPEG handling.
- * @throws Exception if an error occurs
- */
- @Test
- public void testJPEGImageLevel2() throws Exception {
- innerTestJPEGImage(2);
- }
-
- private void innerTestJPEGImage(int level) throws Exception {
- FOUserAgent ua = fopFactory.newFOUserAgent();
- PSDocumentHandler handler = new PSDocumentHandler();
- handler.setContext(new IFContext(ua));
- PSRenderingUtil psUtil = handler.getPSUtil();
- psUtil.setLanguageLevel(level);
- psUtil.setOptimizeResources(true);
- ua.setDocumentHandlerOverride(handler);
-
- // Prepare output file
- File outputFile = renderFile(ua, "ps-jpeg-image.fo", "-if-l" + psUtil.getLanguageLevel());
- verifyPostScriptFile(outputFile, psUtil.getLanguageLevel());
- }
-
- private void verifyPostScriptFile(File psFile, int level)
- throws IOException, DSCException {
- InputStream in = new java.io.FileInputStream(psFile);
- in = new java.io.BufferedInputStream(in);
- try {
- DSCParser parser = new DSCParser(in);
-
- DSCCommentPages pages = (DSCCommentPages)gotoDSCComment(parser, DSCConstants.PAGES);
- assertEquals(1, pages.getPageCount());
-
- //Skip procsets and encoding
- gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
- gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
- gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
- gotoDSCComment(parser, DSCConstants.BEGIN_RESOURCE);
-
- PSResource form2 = new PSResource(PSResource.TYPE_FORM, "FOPForm:2");
- checkResourceComment(parser, DSCConstants.BEGIN_RESOURCE, form2);
- DSCCommentTitle title = (DSCCommentTitle)parser.nextEvent().asDSCComment();
- assertEquals("image/jpeg test/resources/images/bgimg300dpi.jpg", title.getTitle());
-
- String resourceContent = getResourceContent(parser);
-
- if (level == 3) {
- assertContains(resourceContent, "/FOPForm:2");
- assertContains(resourceContent, "/DCTDecode filter");
- assertContains(resourceContent, "/ReusableStreamDecode filter");
- } else {
- assertContains(resourceContent, "/FOPForm:2");
- assertContains(resourceContent, "/DCTDecode filter");
- assertAbsent(resourceContent, "/ReusableStreamDecode filter");
- }
-
- //---=== Page 1 ===---
- DSCCommentPage page = (DSCCommentPage)gotoDSCComment(parser, DSCConstants.PAGE);
- assertEquals(1, page.getPagePosition());
-
- PSResource form1 = new PSResource(PSResource.TYPE_FORM, "FOPForm:1");
- checkResourceComment(parser, DSCConstants.BEGIN_RESOURCE, form1);
- title = (DSCCommentTitle)parser.nextEvent().asDSCComment();
- assertEquals("image/jpeg test/resources/images/bgimg72dpi.jpg", title.getTitle());
- resourceContent = getResourceContent(parser);
-
- if (level == 3) {
- assertContains(resourceContent, "/FOPForm:1");
- assertContains(resourceContent, "/DCTDecode filter");
- assertContains(resourceContent, "/ReusableStreamDecode filter");
- } else {
- assertContains(resourceContent, "/FOPForm:1");
- assertContains(resourceContent, "/DCTDecode filter");
- assertAbsent(resourceContent, "/ReusableStreamDecode filter");
- }
-
- } finally {
- IOUtils.closeQuietly(in);
- }
- }
-
- private void assertContains(String text, String searchString) {
- assertTrue("Text doesn't contain '" + searchString + "'", text.indexOf(searchString) >= 0);
- }
-
- private void assertAbsent(String text, String searchString) {
- assertTrue("Text contains '" + searchString + "'", text.indexOf(searchString) < 0);
- }
-
- private String getResourceContent(DSCParser parser) throws IOException, DSCException {
- StringBuffer sb = new StringBuffer();
- while (parser.hasNext()) {
- DSCEvent event = parser.nextEvent();
- if (event.isLine()) {
- sb.append(event.asLine().getLine()).append('\n');
- } else if (event.isDSCComment()) {
- if (DSCConstants.END_RESOURCE.equals(event.asDSCComment().getName())) {
- break;
- }
- }
- }
- return sb.toString();
- }
-
- }
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