Add face tanning effect to gallery

bug:  5453164

Change-Id: I259e80325854b9e4a2d2c93db74b306b8e15535c

2 files changed, 108 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/photoeditor/actions/FaceTanAction.java b/src/com/android/gallery3d/photoeditor/actions/FaceTanAction.java
new file mode 100644
index 000000000..a82f33079
--- /dev/null
+++ b/src/com/android/gallery3d/photoeditor/actions/FaceTanAction.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2010 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 com.android.gallery3d.photoeditor.actions;
+
+import android.content.Context;
+import android.util.AttributeSet;
+
+import com.android.gallery3d.photoeditor.filters.FaceTanFilter;
+
+/**
+ * An action handling face tanning effect.
+ */
+public class FaceTanAction extends EffectAction {
+
+    private static final float DEFAULT_SCALE = 0.5f;
+
+    private ScaleSeekBar scalePicker;
+
+    public FaceTanAction(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    public void doBegin() {
+        final FaceTanFilter filter = new FaceTanFilter();
+
+        scalePicker = factory.createScalePicker(EffectToolFactory.ScalePickerType.GENERIC);
+        scalePicker.setOnScaleChangeListener(new ScaleSeekBar.OnScaleChangeListener() {
+
+            @Override
+            public void onProgressChanged(float progress, boolean fromUser) {
+                if (fromUser) {
+                    filter.setScale(progress);
+                    notifyFilterChanged(filter, true);
+                }
+            }
+        });
+        scalePicker.setProgress(DEFAULT_SCALE);
+
+        filter.setScale(DEFAULT_SCALE);
+        notifyFilterChanged(filter, true);
+    }
+
+    @Override
+    public void doEnd() {
+        scalePicker.setOnScaleChangeListener(null);
+    }
+}
diff --git a/src/com/android/gallery3d/photoeditor/filters/FaceTanFilter.java b/src/com/android/gallery3d/photoeditor/filters/FaceTanFilter.java
new file mode 100644
index 000000000..24b89c93f
--- /dev/null
+++ b/src/com/android/gallery3d/photoeditor/filters/FaceTanFilter.java
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2010 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 com.android.gallery3d.photoeditor.filters;
+
+import android.media.effect.Effect;
+
+import com.android.gallery3d.photoeditor.Photo;
+
+/**
+ * Face tanning filter applied to the image.
+ */
+public class FaceTanFilter extends Filter {
+
+    private float scale;
+
+    /**
+     * Sets the face tanning level.
+     *
+     * @param scale ranges from 0 to 1.
+     */
+    public void setScale(float scale) {
+        this.scale = scale;
+        validate();
+    }
+
+    @Override
+    public void process(Photo src, Photo dst) {
+        Effect effect = getEffect("com.google.android.media.effect.effects.FaceTanningEffect");
+        effect.setParameter("blend", scale);
+        effect.apply(src.texture(), src.width(), src.height(), dst.texture());
+    }
+}