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.GrainFilter; 23 24 /** 25 * An action handling the film-grain effect. 26 */ 27 public class GrainAction extends EffectAction { 28 29 private static final float DEFAULT_SCALE = 0.5f; 30 31 private ScaleSeekBar scalePicker; 32 33 public GrainAction(Context context, AttributeSet attrs) { 34 super(context, attrs); 35 } 36 37 @Override 38 public void doBegin() { 39 final GrainFilter filter = new GrainFilter(); 40 41 scalePicker = factory.createScalePicker(EffectToolFactory.ScalePickerType.GENERIC); 42 scalePicker.setOnScaleChangeListener(new ScaleSeekBar.OnScaleChangeListener() { 43 44 @Override 45 public void onProgressChanged(float progress, boolean fromUser) { 46 if (fromUser) { 47 filter.setScale(progress); 48 notifyFilterChanged(filter, true); 49 } 50 } 51 }); 52 scalePicker.setProgress(DEFAULT_SCALE); 53 54 filter.setScale(DEFAULT_SCALE); 55 notifyFilterChanged(filter, true); 56 } 57 58 @Override 59 public void doEnd() { 60 scalePicker.setOnScaleChangeListener(null); 61 } 62 } 63
