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.util.AttributeSet; 21 22 import com.android.gallery3d.photoeditor.filters.StraightenFilter; 23 24 /** 25 * An action handling straighten effect. 26 */ 27 public class StraightenAction extends EffectAction { 28 29 private static final float DEFAULT_ANGLE = 0.0f; 30 private static final float DEFAULT_ROTATE_SPAN = StraightenFilter.MAX_DEGREES * 2; 31 32 private RotateView rotateView; 33 StraightenAction(Context context, AttributeSet attrs)34 public StraightenAction(Context context, AttributeSet attrs) { 35 super(context, attrs); 36 } 37 38 @Override doBegin()39 public void doBegin() { 40 final StraightenFilter filter = new StraightenFilter(); 41 42 rotateView = factory.createRotateView(); 43 rotateView.setOnRotateChangeListener(new RotateView.OnRotateChangeListener() { 44 45 @Override 46 public void onAngleChanged(float degrees, boolean fromUser){ 47 if (fromUser) { 48 filter.setAngle(degrees); 49 notifyFilterChanged(filter, true); 50 } 51 } 52 53 @Override 54 public void onStartTrackingTouch() { 55 // no-op 56 } 57 58 @Override 59 public void onStopTrackingTouch() { 60 // no-op 61 } 62 }); 63 rotateView.setDrawGrids(true); 64 rotateView.setRotatedAngle(DEFAULT_ANGLE); 65 rotateView.setRotateSpan(DEFAULT_ROTATE_SPAN); 66 } 67 68 @Override doEnd()69 public void doEnd() { 70 rotateView.setOnRotateChangeListener(null); 71 } 72 } 73