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Posted to commits@pdfbox.apache.org by ti...@apache.org on 2014/07/16 00:05:43 UTC
svn commit: r1610865 -
/pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java
Author: tilman
Date: Tue Jul 15 22:05:42 2014
New Revision: 1610865
URL: http://svn.apache.org/r1610865
Log:
PDFBOX-2211: sample code to create PDF with type 2 shading with type 2 function
Added:
pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java (with props)
Added: pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java
URL: http://svn.apache.org/viewvc/pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java?rev=1610865&view=auto
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--- pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java (added)
+++ pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java Tue Jul 15 22:05:42 2014
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2014 The Apache Software Foundation.
+ *
+ * Licensed 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.
+ */
+package org.apache.pdfbox.examples.pdmodel;
+
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Map;
+import org.apache.pdfbox.cos.COSArray;
+import org.apache.pdfbox.cos.COSDictionary;
+import org.apache.pdfbox.cos.COSFloat;
+import org.apache.pdfbox.cos.COSInteger;
+import org.apache.pdfbox.cos.COSName;
+import org.apache.pdfbox.exceptions.COSVisitorException;
+import org.apache.pdfbox.pdmodel.PDDocument;
+import org.apache.pdfbox.pdmodel.PDPage;
+import org.apache.pdfbox.pdmodel.PDResources;
+import org.apache.pdfbox.pdmodel.edit.PDPageContentStream;
+import org.apache.pdfbox.pdmodel.graphics.shading.PDShadingResources;
+import org.apache.pdfbox.pdmodel.graphics.shading.PDShadingType2;
+
+/**
+ * This example creates a PDF with type 2 (axial) shading with a type 2
+ * (exponential) function.
+ *
+ * @author Tilman Hausherr
+ */
+public class CreateGradientShadingPDF
+{
+
+ /**
+ * This will create the PDF and write the contents to a file.
+ *
+ * @param file The name of the file to write to.
+ *
+ * @throws IOException If there is an error writing the data.
+ */
+ public void create(String file) throws IOException, COSVisitorException
+ {
+ PDDocument document = null;
+ try
+ {
+ document = new PDDocument();
+ PDPage page = new PDPage();
+ document.addPage(page);
+
+ // shading attributes
+ COSDictionary dict = new COSDictionary();
+ dict.setInt(COSName.SHADING_TYPE, 2);
+ dict.setName(COSName.COLORSPACE, "DeviceRGB");
+ COSArray coords = new COSArray();
+ coords.add(COSInteger.get(100));
+ coords.add(COSInteger.get(400));
+ coords.add(COSInteger.get(400));
+ coords.add(COSInteger.get(600));
+ dict.setItem(COSName.COORDS, coords);
+
+ // function with attributes
+ COSDictionary fdict = new COSDictionary();
+ fdict.setInt(COSName.FUNCTION_TYPE, 2);
+ COSArray domain = new COSArray();
+ domain.add(COSInteger.get(0));
+ domain.add(COSInteger.get(1));
+ COSArray c0 = new COSArray();
+ c0.add(COSFloat.get("1"));
+ c0.add(COSFloat.get("0"));
+ c0.add(COSFloat.get("0"));
+ COSArray c1 = new COSArray();
+ c1.add(COSFloat.get("0.5"));
+ c1.add(COSFloat.get("1"));
+ c1.add(COSFloat.get("0.5"));
+ fdict.setItem(COSName.DOMAIN, domain);
+ fdict.setItem(COSName.C0, c0);
+ fdict.setItem(COSName.C1, c1);
+ fdict.setInt(COSName.N, 1);
+ dict.setItem(COSName.FUNCTION, fdict);
+
+ PDShadingType2 shading = new PDShadingType2(dict);
+
+ // create and add to shading resources
+ page.setResources(new PDResources());
+ Map<String, PDShadingResources> shadings = new HashMap<String, PDShadingResources>();
+ shadings.put("sh1", (PDShadingResources) shading);
+ page.getResources().setShadings(shadings);
+
+ // invoke shading from content stream
+ PDPageContentStream contentStream = new PDPageContentStream(document, page, true, false);
+ contentStream.appendRawCommands("/sh1 sh");
+ contentStream.close();
+
+ document.save(file);
+ document.close();
+ }
+ finally
+ {
+ if (document != null)
+ {
+ document.close();
+ }
+ }
+ }
+
+ /**
+ * This will create a blank document.
+ *
+ * @param args The command line arguments.
+ *
+ * @throws IOException If there is an error writing the document data.
+ */
+ public static void main(String[] args) throws IOException, COSVisitorException
+ {
+ if (args.length != 1)
+ {
+ usage();
+ }
+ else
+ {
+ CreateGradientShadingPDF creator = new CreateGradientShadingPDF();
+ creator.create(args[0]);
+ }
+ }
+
+ /**
+ * This will print the usage of this class.
+ */
+ private static void usage()
+ {
+ System.err.println("usage: java org.apache.pdfbox.examples.pdmodel.CreateGradientShadingPDF <outputfile.pdf>");
+ }
+}
Propchange: pdfbox/branches/1.8/examples/src/main/java/org/apache/pdfbox/examples/pdmodel/CreateGradientShadingPDF.java
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