samples/PhotoEditor/src/com/android/photoeditor/filters/CropFilter.java

/*
 * 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.photoeditor.filters;

import android.graphics.RectF;

import com.android.photoeditor.Photo;

/**
 * Crop filter applied to the image.
 */
public class CropFilter extends Filter {

    private RectF bounds;

    /**
     * The coordinates used here should range from 0 to 1.
     */
    public void setCropBounds(RectF bounds) {
        this.bounds = bounds;
        validate();
    }

    public void process(Photo src, Photo dst) {
        ImageUtils.nativeCopy(src.bitmap(), dst.bitmap());
        dst.crop((int) (src.width() * bounds.left), (int) (src.height() * bounds.top),
                (int) (src.width() * bounds.width()), (int) (src.height() * bounds.height()));
    }
}