Initial commit

Signed-off-by: jruesga <jorge@ruesga.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/src/org/cyanogenmod/wallpapers/photophase/effects/BlackAndWhiteEffect.java b/src/org/cyanogenmod/wallpapers/photophase/effects/BlackAndWhiteEffect.java
new file mode 100644
index 0000000..dbda330
--- /dev/null
+++ b/src/org/cyanogenmod/wallpapers/photophase/effects/BlackAndWhiteEffect.java
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod 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 org.cyanogenmod.wallpapers.photophase.effects;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.ColorMatrix;
+import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Paint;
+
+/**
+ * This effect converts the source image to black and white color scheme.
+ */
+public class BlackAndWhiteEffect extends Effect {
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public Bitmap apply(Bitmap src) {
+        try {
+            final int height = src.getHeight();
+            final int width = src.getWidth();
+
+            Bitmap dst = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+            final Canvas c = new Canvas(dst);
+            final Paint paint = new Paint();
+            final ColorMatrix cm = new ColorMatrix();
+            cm.setSaturation(0);
+            final ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
+            paint.setColorFilter(f);
+            c.drawBitmap(src, 0, 0, paint);
+            return dst;
+        } finally {
+            src.recycle();
+        }
+    }
+
+}