Author: ssteiner
Date: Mon Jan 11 14:29:39 2016
New Revision: 1724037
URL: http://svn.apache.org/viewvc?rev=1724037&view=rev
Log:
FOP-2553: Support PDF shading to PS
Added:
xmlgraphics/fop/trunk/src/java/org/apache/fop/render/ps/Gradient.java
(with props)
Added: xmlgraphics/fop/trunk/src/java/org/apache/fop/render/ps/Gradient.java
URL:
http://svn.apache.org/viewvc/xmlgraphics/fop/trunk/src/java/org/apache/fop/render/ps/Gradient.java?rev=1724037&view=auto
==============================================================================
--- xmlgraphics/fop/trunk/src/java/org/apache/fop/render/ps/Gradient.java
(added)
+++ xmlgraphics/fop/trunk/src/java/org/apache/fop/render/ps/Gradient.java Mon
Jan 11 14:29:39 2016
@@ -0,0 +1,85 @@
+/*
+ * 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 java.util.List;
+
+import org.apache.fop.render.gradient.Function;
+import org.apache.fop.render.gradient.Function.SubFunctionRenderer;
+import org.apache.fop.render.gradient.GradientMaker.DoubleFormatter;
+import org.apache.fop.render.gradient.Pattern;
+import org.apache.fop.render.gradient.Shading;
+
+/**
+ * Helper class to draw gradients in PostScript.
+ */
+public final class Gradient {
+
+ private Gradient() { }
+
+ public static String outputPattern(Pattern pattern, DoubleFormatter
doubleFormatter) {
+ StringBuilder p = new StringBuilder(64);
+ p.append("/Pattern setcolorspace\n");
+ p.append("<< \n/Type /Pattern \n");
+
+ p.append("/PatternType " + pattern.getPatternType() + " \n");
+
+ if (pattern.getShading() != null) {
+ p.append("/Shading ");
+ outputShading(p, pattern.getShading(), doubleFormatter);
+ p.append(" \n");
+ }
+ p.append(">> \n");
+ List<Double> matrix = pattern.getMatrix();
+ if (matrix == null) {
+ p.append("matrix ");
+ } else {
+ p.append("[ ");
+ for (double m : pattern.getMatrix()) {
+ p.append(doubleFormatter.formatDouble(m));
+ p.append(" ");
+ }
+ p.append("] ");
+ }
+ p.append("makepattern setcolor\n");
+
+ return p.toString();
+ }
+
+ private static void outputShading(StringBuilder out, Shading shading,
final DoubleFormatter doubleFormatter) {
+ final Function function = shading.getFunction();
+ Shading.FunctionRenderer functionRenderer = new
Shading.FunctionRenderer() {
+
+ public void outputFunction(StringBuilder out) {
+ SubFunctionRenderer subFunctionRenderer = new
Function.SubFunctionRenderer() {
+
+ public void outputFunction(StringBuilder out, int
functionIndex) {
+ Function subFunction =
function.getFunctions().get(functionIndex);
+ assert subFunction.getFunctions().isEmpty();
+ subFunction.output(out, doubleFormatter, null);
+ }
+ };
+ function.output(out, doubleFormatter, subFunctionRenderer);
+ }
+ };
+ shading.output(out, doubleFormatter, functionRenderer);
+ }
+
+}
Propchange:
xmlgraphics/fop/trunk/src/java/org/apache/fop/render/ps/Gradient.java
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