1 files changed, 118 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/optional/image/Rotate.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/optional/image/Rotate.java
new file mode 100644
index 00000000..3013bde4
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/types/optional/image/Rotate.java
@@ -0,0 +1,118 @@
+/*
+ *  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.
+ *
+ */
+package org.apache.tools.ant.types.optional.image;
+
+import java.awt.image.BufferedImage;
+import java.awt.image.renderable.ParameterBlock;
+
+import javax.media.jai.InterpolationNearest;
+import javax.media.jai.JAI;
+import javax.media.jai.PlanarImage;
+
+/**
+ * ImageOperation to rotate an image by a certain degree
+ *
+ * @see org.apache.tools.ant.taskdefs.optional.image.Image
+ */
+public class Rotate extends TransformOperation implements DrawOperation {
+    private static final float HALF_CIRCLE = 180.0F;
+
+    // CheckStyle:VisibilityModifier OFF - bc
+    protected float angle = 0.0F;
+    // CheckStyle:VisibilityModifier ON
+
+    /**
+     * Sets the angle of rotation in degrees.
+     * @param ang The angle at which to rotate the image
+     */
+    public void setAngle(String ang) {
+        angle = Float.parseFloat(ang);
+    }
+
+
+    /**
+     * Rotate an image.
+     * @param image the image to rotate.
+     * @return the rotated image.
+     */
+    public PlanarImage performRotate(PlanarImage image) {
+        float tAngle = (float) (angle * (Math.PI / HALF_CIRCLE));
+        ParameterBlock pb = new ParameterBlock();
+        pb.addSource(image);
+        pb.add(0.0F);
+        pb.add(0.0F);
+        pb.add(tAngle);
+        pb.add(new InterpolationNearest());
+        return JAI.create("Rotate", pb, null);
+    }
+
+
+    /**
+     * Performs the image rotation when being handled as a TransformOperation.
+     * @param image The image to perform the transformation on.
+     * @return the transformed image.
+     */
+    public PlanarImage executeTransformOperation(PlanarImage image) {
+        BufferedImage bi = null;
+        final int size = instructions.size();
+        for (int i = 0; i < size; i++) {
+            ImageOperation instr = ((ImageOperation) instructions.elementAt(i));
+            if (instr instanceof DrawOperation) {
+                // If this TransformOperation has DrawOperation children
+                // then Rotate the first child and return.
+                System.out.println("Execing Draws");
+                PlanarImage op = ((DrawOperation) instr).executeDrawOperation();
+                image = performRotate(op);
+                return image;
+            } else if (instr instanceof TransformOperation) {
+                bi = image.getAsBufferedImage();
+                System.out.println("Execing Transforms");
+                image = ((TransformOperation) instr)
+                    .executeTransformOperation(PlanarImage.wrapRenderedImage(bi));
+                bi = image.getAsBufferedImage();
+            }
+        }
+        System.out.println("Execing as TransformOperation");
+        image = performRotate(image);
+        System.out.println(image);
+        return image;
+    }
+
+    /**
+     *  Performs the image rotation when being handled as a DrawOperation.
+     *  It absolutely requires that there be a DrawOperation nested beneath it,
+     *  but only the FIRST DrawOperation will be handled since it can only return
+     *  ONE image.
+     * @return the image.
+     */
+    public PlanarImage executeDrawOperation() {
+        final int size = instructions.size();
+        for (int i = 0; i < size; i++) {
+            ImageOperation instr = ((ImageOperation) instructions.elementAt(i));
+            if (instr instanceof DrawOperation) {
+                // If this TransformOperation has DrawOperation children
+                // then Rotate the first child and return.
+                PlanarImage op = ((DrawOperation) instr).executeDrawOperation();
+                op = performRotate(op);
+                return op;
+            }
+        }
+        return null;
+    }
+
+}