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.util.JsonReader;
20import android.util.JsonWriter;
21import android.util.Log;
22
23import com.android.gallery3d.R;
24import com.android.gallery3d.filtershow.editors.EditorMirror;
25import com.android.gallery3d.filtershow.editors.ImageOnlyEditor;
26import com.android.gallery3d.filtershow.imageshow.GeometryMathUtils;
27import com.android.gallery3d.filtershow.imageshow.MasterImage;
28import com.android.gallery3d.filtershow.pipeline.ImagePreset;
29
30import java.io.IOException;
31import java.util.ArrayList;
32
33public class FilterMirrorRepresentation extends FilterRepresentation {
34    public static final String SERIALIZATION_NAME = "MIRROR";
35    private static final String SERIALIZATION_MIRROR_VALUE = "value";
36    private static final String TAG = FilterMirrorRepresentation.class.getSimpleName();
37
38    Mirror mMirror;
39
40    public enum Mirror {
41        NONE('N'), VERTICAL('V'), HORIZONTAL('H'), BOTH('B');
42        char mValue;
43
44        private Mirror(char value) {
45            mValue = value;
46        }
47
48        public char value() {
49            return mValue;
50        }
51
52        public static Mirror fromValue(char value) {
53            switch (value) {
54                case 'N':
55                    return NONE;
56                case 'V':
57                    return VERTICAL;
58                case 'H':
59                    return HORIZONTAL;
60                case 'B':
61                    return BOTH;
62                default:
63                    return null;
64            }
65        }
66    }
67
68    public FilterMirrorRepresentation(Mirror mirror) {
69        super(SERIALIZATION_NAME);
70        setSerializationName(SERIALIZATION_NAME);
71        setShowParameterValue(false);
72        setFilterClass(FilterMirrorRepresentation.class);
73        setFilterType(FilterRepresentation.TYPE_GEOMETRY);
74        setSupportsPartialRendering(true);
75        setTextId(R.string.mirror);
76        setEditorId(ImageOnlyEditor.ID);
77        setMirror(mirror);
78    }
79
80    public FilterMirrorRepresentation(FilterMirrorRepresentation m) {
81        this(m.getMirror());
82        setName(m.getName());
83    }
84
85    public FilterMirrorRepresentation() {
86        this(getNil());
87    }
88
89    @Override
90    public boolean equals(FilterRepresentation rep) {
91        if (!(rep instanceof FilterMirrorRepresentation)) {
92            return false;
93        }
94        FilterMirrorRepresentation mirror = (FilterMirrorRepresentation) rep;
95        if (mMirror != mirror.mMirror) {
96            return false;
97        }
98        return true;
99    }
100
101    public Mirror getMirror() {
102        return mMirror;
103    }
104
105    public void set(FilterMirrorRepresentation r) {
106        mMirror = r.mMirror;
107    }
108
109    public void setMirror(Mirror mirror) {
110        if (mirror == null) {
111            throw new IllegalArgumentException("Argument to setMirror is null");
112        }
113        mMirror = mirror;
114    }
115
116    public boolean isHorizontal() {
117        if (mMirror == Mirror.BOTH
118                || mMirror == Mirror.HORIZONTAL) {
119            return true;
120        }
121        return false;
122    }
123
124    public boolean isVertical() {
125        if (mMirror == Mirror.BOTH
126                || mMirror == Mirror.VERTICAL) {
127            return true;
128        }
129        return false;
130    }
131
132    public void cycle() {
133        switch (mMirror) {
134            case NONE:
135                mMirror = Mirror.HORIZONTAL;
136                break;
137            case HORIZONTAL:
138                mMirror = Mirror.BOTH;
139                break;
140            case BOTH:
141                mMirror = Mirror.VERTICAL;
142                break;
143            case VERTICAL:
144                mMirror = Mirror.NONE;
145                break;
146        }
147    }
148
149    @Override
150    public boolean allowsSingleInstanceOnly() {
151        return true;
152    }
153
154    @Override
155    public FilterRepresentation copy() {
156        return new FilterMirrorRepresentation(this);
157    }
158
159    @Override
160    protected void copyAllParameters(FilterRepresentation representation) {
161        if (!(representation instanceof FilterMirrorRepresentation)) {
162            throw new IllegalArgumentException("calling copyAllParameters with incompatible types!");
163        }
164        super.copyAllParameters(representation);
165        representation.useParametersFrom(this);
166    }
167
168    @Override
169    public void useParametersFrom(FilterRepresentation a) {
170        if (!(a instanceof FilterMirrorRepresentation)) {
171            throw new IllegalArgumentException("calling useParametersFrom with incompatible types!");
172        }
173        setMirror(((FilterMirrorRepresentation) a).getMirror());
174    }
175
176    @Override
177    public boolean isNil() {
178        return mMirror == getNil();
179    }
180
181    public static Mirror getNil() {
182        return Mirror.NONE;
183    }
184
185    @Override
186    public void serializeRepresentation(JsonWriter writer) throws IOException {
187        writer.beginObject();
188        writer.name(SERIALIZATION_MIRROR_VALUE).value(mMirror.value());
189        writer.endObject();
190    }
191
192    @Override
193    public void deSerializeRepresentation(JsonReader reader) throws IOException {
194        boolean unset = true;
195        reader.beginObject();
196        while (reader.hasNext()) {
197            String name = reader.nextName();
198            if (SERIALIZATION_MIRROR_VALUE.equals(name)) {
199                Mirror r = Mirror.fromValue((char) reader.nextInt());
200                if (r != null) {
201                    setMirror(r);
202                    unset = false;
203                }
204            } else {
205                reader.skipValue();
206            }
207        }
208        if (unset) {
209            Log.w(TAG, "WARNING: bad value when deserializing " + SERIALIZATION_NAME);
210        }
211        reader.endObject();
212    }
213}
214