Size.java revision 8097973089420749dcd1ab4974a629c2466b31cc 
1/*
2 * Copyright (C) 2014 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.ex.camera2.portability;
18
19import android.graphics.Point;
20import android.hardware.Camera;
21import android.text.TextUtils;
22
23import java.util.ArrayList;
24import java.util.List;
25
26/**
27 * An immutable simple size container.
28 */
29public class Size {
30    public static final String DELIMITER = ",";
31
32    /**
33     * An helper method to build a list of this class from a list of
34     * {@link android.hardware.Camera.Size}.
35     *
36     * @param cameraSizes Source.
37     * @return The built list.
38     */
39    public static List<Size> buildListFromCameraSizes(List<Camera.Size> cameraSizes) {
40        ArrayList<Size> list = new ArrayList<Size>(cameraSizes.size());
41        for (Camera.Size cameraSize : cameraSizes) {
42            list.add(new Size(cameraSize));
43        }
44        return list;
45    }
46
47    /**
48     * Encode List of this class as comma-separated list of integers.
49     *
50     * @param sizes List of this class to encode.
51     * @return encoded string.
52     */
53    public static String listToString(List<Size> sizes) {
54        ArrayList<Integer> flatSizes = new ArrayList<>();
55        for (Size s : sizes) {
56            flatSizes.add(s.width());
57            flatSizes.add(s.height());
58        }
59        return TextUtils.join(DELIMITER, flatSizes);
60    }
61
62    /**
63     * Decode comma-separated even-length list of integers into a List of this class.
64     *
65     * @param encodedSizes encoded string.
66     * @return List of this class.
67     */
68    public static List<Size> stringToList(String encodedSizes) {
69        String[] flatSizes = TextUtils.split(encodedSizes, DELIMITER);
70        ArrayList<Size> list = new ArrayList<>();
71        for (int i = 0; i < flatSizes.length; i += 2) {
72            int width = Integer.parseInt(flatSizes[i]);
73            int height = Integer.parseInt(flatSizes[i + 1]);
74            list.add(new Size(width,height));
75        }
76        return list;
77    }
78
79    private final Point val;
80
81    /**
82     * Constructor.
83     */
84    public Size(int width, int height) {
85        val = new Point(width, height);
86    }
87
88    /**
89     * Copy constructor.
90     */
91    public Size(Size other) {
92        if (other == null) {
93            val = new Point(0, 0);
94        } else {
95            val = new Point(other.width(), other.height());
96        }
97    }
98
99    /**
100     * Constructor from a source {@link android.hardware.Camera.Size}.
101     *
102     * @param other The source size.
103     */
104    public Size(Camera.Size other) {
105        if (other == null) {
106            val = new Point(0, 0);
107        } else {
108            val = new Point(other.width, other.height);
109        }
110    }
111
112    /**
113     * Constructor from a source {@link android.graphics.Point}.
114     *
115     * @param p The source size.
116     */
117    public Size(Point p) {
118        if (p == null) {
119            val = new Point(0, 0);
120        } else {
121            val = new Point(p);
122        }
123    }
124
125    public int width() {
126        return val.x;
127    }
128
129    public int height() {
130        return val.y;
131    }
132
133    @Override
134    public boolean equals(Object o) {
135        if (o instanceof Size) {
136            Size other = (Size) o;
137            return val.equals(other.val);
138        }
139        return false;
140    }
141
142    @Override
143    public int hashCode() {
144        return val.hashCode();
145    }
146
147    @Override
148    public String toString() {
149        return "Size: (" + this.width() + " x " + this.height() + ")";
150    }
151}
152