| /* |
| * 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(); |
| } |
| |
| } |