Add face tanning effect to gallery

            android:text="@string/facelift"

            style="@style/EffectLabel"/>

    </com.android.gallery3d.photoeditor.actions.FaceliftAction>

    <com.android.gallery3d.photoeditor.actions.FaceTanAction style="@style/Effect">

        <ImageButton

            android:id="@+id/effect_button"

            style="@style/EffectIcon"

            android:src="@drawable/photoeditor_effect_facetan"/>

        <TextView

            android:id="@+id/effect_label"

            android:text="@string/facetan"

            style="@style/EffectLabel"/>

    </com.android.gallery3d.photoeditor.actions.FaceTanAction>

    <com.android.gallery3d.photoeditor.actions.StraightenAction style="@style/Effect"

        android:tag="@string/straighten_tooltip">

        <ImageButton

/*

 * 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);

    }

}

/*

 * 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());

    }

}