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.filters; 18 19 import android.graphics.RectF; 20 import android.media.effect.Effect; 21 import android.media.effect.EffectFactory; 22 import android.os.Parcel; 23 24 import com.android.gallery3d.photoeditor.Photo; 25 26 /** 27 * Crop filter applied to the image. 28 */ 29 public class CropFilter extends Filter { 30 31 public static final Creator<CropFilter> CREATOR = creatorOf(CropFilter.class); 32 33 private RectF bounds; 34 35 /** 36 * The rect coordinates used here should range from 0 to 1. 37 */ setCropBounds(RectF bounds)38 public void setCropBounds(RectF bounds) { 39 this.bounds = bounds; 40 } 41 42 @Override process(Photo src, Photo dst)43 public void process(Photo src, Photo dst) { 44 dst.changeDimension(Math.round(bounds.width() * src.width()), 45 Math.round(bounds.height() * src.height())); 46 47 Effect effect = getEffect(EffectFactory.EFFECT_CROP); 48 effect.setParameter("xorigin", Math.round(bounds.left * src.width())); 49 effect.setParameter("yorigin", Math.round(bounds.top * src.height())); 50 effect.setParameter("width", dst.width()); 51 effect.setParameter("height", dst.height()); 52 effect.apply(src.texture(), src.width(), src.height(), dst.texture()); 53 } 54 55 @Override writeToParcel(Parcel out)56 protected void writeToParcel(Parcel out) { 57 out.writeParcelable(bounds, 0); 58 } 59 60 @Override readFromParcel(Parcel in)61 protected void readFromParcel(Parcel in) { 62 bounds = in.readParcelable(null); 63 } 64 } 65