FilterCropRepresentation.java revision 8f442fae60e0154867d2a6927eb9a35bcb7014e6 
1/*
2 * Copyright (C) 2013 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
17package com.android.gallery3d.filtershow.filters;
18
19import android.graphics.RectF;
20import android.util.JsonReader;
21import android.util.JsonWriter;
22
23import com.android.gallery3d.R;
24import com.android.gallery3d.filtershow.editors.EditorCrop;
25
26import java.io.IOException;
27
28public class FilterCropRepresentation extends FilterRepresentation {
29    public static final String SERIALIZATION_NAME = "CROP";
30    public static final String[] BOUNDS = {
31            "C0", "C1", "C2", "C3", "I0", "I1", "I2", "I3"
32    };
33    private static final String TAG = FilterCropRepresentation.class.getSimpleName();
34
35    RectF mCrop = new RectF();
36    RectF mImage = new RectF();
37
38    public FilterCropRepresentation(RectF crop, RectF image) {
39        super(FilterCropRepresentation.class.getSimpleName());
40        setSerializationName(SERIALIZATION_NAME);
41        setShowParameterValue(true);
42        setFilterClass(FilterCropRepresentation.class);
43        setFilterType(FilterRepresentation.TYPE_GEOMETRY);
44        setTextId(R.string.crop);
45        setEditorId(EditorCrop.ID);
46        setCrop(crop);
47        setImage(image);
48    }
49
50    public FilterCropRepresentation(FilterCropRepresentation m) {
51        this(m.getCrop(), m.getImage());
52    }
53
54    public FilterCropRepresentation() {
55        this(new RectF(), new RectF());
56    }
57
58    public void set(FilterCropRepresentation r) {
59        mCrop.set(r.mCrop);
60        mImage.set(r.mImage);
61    }
62
63    @Override
64    public boolean equals(FilterRepresentation rep) {
65        if (!(rep instanceof FilterCropRepresentation)) {
66            return false;
67        }
68        FilterCropRepresentation crop = (FilterCropRepresentation) rep;
69        if (mCrop.bottom != crop.mCrop.bottom
70            || mCrop.left != crop.mCrop.left
71            || mCrop.right != crop.mCrop.right
72            || mCrop.top != crop.mCrop.top
73            || mImage.bottom != crop.mImage.bottom
74            || mImage.left != crop.mImage.left
75            || mImage.right != crop.mImage.right
76            || mImage.top != crop.mImage.top) {
77            return false;
78        }
79        return true;
80    }
81
82    public RectF getCrop() {
83        return new RectF(mCrop);
84    }
85
86    public void getCrop(RectF r) {
87        r.set(mCrop);
88    }
89
90    public void setCrop(RectF crop) {
91        if (crop == null) {
92            throw new IllegalArgumentException("Argument to setCrop is null");
93        }
94        mCrop.set(crop);
95    }
96
97    public RectF getImage() {
98        return new RectF(mImage);
99    }
100
101    public void getImage(RectF r) {
102        r.set(mImage);
103    }
104
105    public void setImage(RectF image) {
106        if (image == null) {
107            throw new IllegalArgumentException("Argument to setImage is null");
108        }
109        mImage.set(image);
110    }
111
112    @Override
113    public boolean allowsSingleInstanceOnly() {
114        return true;
115    }
116
117    @Override
118    public FilterRepresentation copy(){
119        return new FilterCropRepresentation(this);
120    }
121
122    @Override
123    protected void copyAllParameters(FilterRepresentation representation) {
124        if (!(representation instanceof FilterCropRepresentation)) {
125            throw new IllegalArgumentException("calling copyAllParameters with incompatible types!");
126        }
127        super.copyAllParameters(representation);
128        representation.useParametersFrom(this);
129    }
130
131    @Override
132    public void useParametersFrom(FilterRepresentation a) {
133        if (!(a instanceof FilterCropRepresentation)) {
134            throw new IllegalArgumentException("calling useParametersFrom with incompatible types!");
135        }
136        setCrop(((FilterCropRepresentation) a).mCrop);
137        setImage(((FilterCropRepresentation) a).mImage);
138    }
139
140    @Override
141    public boolean isNil() {
142        return mCrop.equals(mImage);
143    }
144
145    @Override
146    public void serializeRepresentation(JsonWriter writer) throws IOException {
147        writer.beginObject();
148        writer.name(BOUNDS[0]).value(mCrop.left);
149        writer.name(BOUNDS[1]).value(mCrop.top);
150        writer.name(BOUNDS[2]).value(mCrop.right);
151        writer.name(BOUNDS[3]).value(mCrop.bottom);
152        writer.name(BOUNDS[4]).value(mImage.left);
153        writer.name(BOUNDS[5]).value(mImage.top);
154        writer.name(BOUNDS[6]).value(mImage.right);
155        writer.name(BOUNDS[7]).value(mImage.bottom);
156        writer.endObject();
157    }
158
159    @Override
160    public void deSerializeRepresentation(JsonReader reader) throws IOException {
161        reader.beginObject();
162        while (reader.hasNext()) {
163            String name = reader.nextName();
164            if (BOUNDS[0].equals(name)) {
165                mCrop.left = (float) reader.nextDouble();
166            } else if (BOUNDS[1].equals(name)) {
167                mCrop.top = (float) reader.nextDouble();
168            } else if (BOUNDS[2].equals(name)) {
169                mCrop.right = (float) reader.nextDouble();
170            } else if (BOUNDS[3].equals(name)) {
171                mCrop.bottom = (float) reader.nextDouble();
172            } else if (BOUNDS[4].equals(name)) {
173                mImage.left = (float) reader.nextDouble();
174            } else if (BOUNDS[5].equals(name)) {
175                mImage.top = (float) reader.nextDouble();
176            } else if (BOUNDS[6].equals(name)) {
177                mImage.right = (float) reader.nextDouble();
178            } else if (BOUNDS[7].equals(name)) {
179                mImage.bottom = (float) reader.nextDouble();
180            } else {
181                reader.skipValue();
182            }
183        }
184        reader.endObject();
185    }
186}
187