1 files changed, 57 insertions, 0 deletions
diff --git a/graphics/java/android/graphics/AvoidXfermode.java b/graphics/java/android/graphics/AvoidXfermode.java
new file mode 100644
index 0000000..d7b0225
--- /dev/null
+++ b/graphics/java/android/graphics/AvoidXfermode.java
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * 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 android.graphics;
+
+/**
+ * AvoidXfermode xfermode will draw the src everywhere except on top of the
+ * opColor or, depending on the Mode, draw only on top of the opColor.
+ */
+public class AvoidXfermode extends Xfermode {
+
+    // these need to match the enum in SkAvoidXfermode.h on the native side
+    public enum Mode {
+        AVOID   (0),    //!< draw everywhere except on the opColor
+        TARGET  (1);    //!< draw only on top of the opColor
+        
+        Mode(int nativeInt) {
+            this.nativeInt = nativeInt;
+        }
+        final int nativeInt;
+    }
+    
+    /**
+     * This xfermode will draw the src everywhere except on top of the opColor
+     * or, depending on the Mode, draw only on top of the opColor.
+     *
+     * @param opColor The color to avoid (or to target depending on Mode). Note
+     *                that the alpha in opColor is ignored.
+     * @param tolerance How closely we compare a pixel to the opColor.
+     *                  0 - only operate if exact match
+     *                  255 - maximum gradation (blending) based on how
+     *                  similar the pixel is to our opColor (max tolerance)
+     * @param mode If we should avoid or target the opColor
+     */
+    public AvoidXfermode(int opColor, int tolerance, Mode mode) {
+        if (tolerance < 0 || tolerance > 255) {
+            throw new IllegalArgumentException("tolerance must be 0..255");
+        }
+        native_instance = nativeCreate(opColor, tolerance, mode.nativeInt);
+    }
+
+    private static native int nativeCreate(int opColor, int tolerance,
+                                           int nativeMode);
+}