Initial upload of the visual testing facility. Docs in code. A Wiki page will follow shortly.

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@232300 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 67 insertions, 0 deletions

diff --git a/test/java/org/apache/fop/visual/ReferenceBitmapLoader.java b/test/java/org/apache/fop/visual/ReferenceBitmapLoader.java
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+++ b/test/java/org/apache/fop/visual/ReferenceBitmapLoader.java
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+/*
+ * Copyright 2005 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.
+ */
+
+/* $Id$ */
+
+package org.apache.fop.visual;
+
+import java.awt.image.BufferedImage;
+import java.io.File;
+
+import org.apache.avalon.framework.configuration.Configurable;
+import org.apache.avalon.framework.configuration.Configuration;
+import org.apache.avalon.framework.configuration.ConfigurationException;
+
+/**
+ * BitmapProducer implementation that simply loads preproduced reference bitmaps from a
+ * certain directory.
+ * <p>
+ * Here's what the configuration element looks like for the class:
+ * <p>
+ * <pre>
+ * <producer classname="org.apache.fop.visual.ReferenceBitmapLoader">
+ *   <directory>C:/Temp/ref-bitmaps</directory>
+ * </producer>
+ * </pre>
+ */
+public class ReferenceBitmapLoader extends AbstractBitmapProducer implements Configurable {
+
+    private File bitmapDirectory;
+    
+    /** @see org.apache.avalon.framework.configuration.Configurable */
+    public void configure(Configuration cfg) throws ConfigurationException {
+        this.bitmapDirectory = new File(cfg.getChild("directory").getValue(null));
+        if (!bitmapDirectory.exists()) {
+            throw new ConfigurationException("Directory could not be found: " + bitmapDirectory);
+        }
+    }
+
+    /** @see org.apache.fop.visual.BitmapProducer */
+    public BufferedImage produce(File src, ProducerContext context) {
+        try {
+            File bitmap = new File(bitmapDirectory, src.getName() + ".png");
+            if (bitmap.exists()) {
+                return BitmapComparator.getImage(bitmap);
+            } else {
+                return null;
+            }
+        } catch (Exception e) {
+            log.error(e);
+            return null;
+        }
+    }
+
+}