1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.gallery3d.photoeditor.actions; 18 19 import android.content.Context; 20 import android.graphics.RectF; 21 import android.util.AttributeSet; 22 23 import com.android.gallery3d.photoeditor.filters.CropFilter; 24 25 /** 26 * An action handling crop effect. 27 */ 28 public class CropAction extends EffectAction { 29 30 private static final float DEFAULT_CROP = 0.2f; 31 32 private CropFilter filter; 33 private CropView cropView; 34 CropAction(Context context, AttributeSet attrs)35 public CropAction(Context context, AttributeSet attrs) { 36 super(context, attrs); 37 } 38 39 @Override doBegin()40 public void doBegin() { 41 filter = new CropFilter(); 42 43 cropView = factory.createCropView(); 44 cropView.setOnCropChangeListener(new CropView.OnCropChangeListener() { 45 46 @Override 47 public void onCropChanged(RectF cropBounds, boolean fromUser) { 48 if (fromUser) { 49 filter.setCropBounds(cropBounds); 50 notifyFilterChanged(filter, false); 51 } 52 } 53 }); 54 55 RectF bounds = new RectF(DEFAULT_CROP, DEFAULT_CROP, 1 - DEFAULT_CROP, 1 - DEFAULT_CROP); 56 cropView.setCropBounds(bounds); 57 filter.setCropBounds(bounds); 58 notifyFilterChanged(filter, false); 59 } 60 61 @Override doEnd()62 public void doEnd() { 63 cropView.setOnCropChangeListener(null); 64 notifyFilterChanged(filter, true); 65 } 66 } 67