1/*
2 * Copyright (C) 2015 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#ifndef AAPT_CONFIG_DESCRIPTION_H
18#define AAPT_CONFIG_DESCRIPTION_H
19
20#include "StringPiece.h"
21
22#include <androidfw/ResourceTypes.h>
23#include <ostream>
24
25namespace aapt {
26
27/*
28 * Subclass of ResTable_config that adds convenient
29 * initialization and comparison methods.
30 */
31struct ConfigDescription : public android::ResTable_config {
32    /*
33     * Parse a string of the form 'fr-sw600dp-land' and fill in the
34     * given ResTable_config with resulting configuration parameters.
35     *
36     * The resulting configuration has the appropriate sdkVersion defined
37     * for backwards compatibility.
38     */
39    static bool parse(const StringPiece& str, ConfigDescription* out = nullptr);
40
41    /**
42     * If the configuration uses an axis that was added after
43     * the original Android release, make sure the SDK version
44     * is set accordingly.
45     */
46    static void applyVersionForCompatibility(ConfigDescription* config);
47
48    ConfigDescription();
49    ConfigDescription(const android::ResTable_config& o);
50    ConfigDescription(const ConfigDescription& o);
51    ConfigDescription(ConfigDescription&& o);
52
53    ConfigDescription& operator=(const android::ResTable_config& o);
54    ConfigDescription& operator=(const ConfigDescription& o);
55    ConfigDescription& operator=(ConfigDescription&& o);
56
57    bool operator<(const ConfigDescription& o) const;
58    bool operator<=(const ConfigDescription& o) const;
59    bool operator==(const ConfigDescription& o) const;
60    bool operator!=(const ConfigDescription& o) const;
61    bool operator>=(const ConfigDescription& o) const;
62    bool operator>(const ConfigDescription& o) const;
63};
64
65inline ConfigDescription::ConfigDescription() {
66    memset(this, 0, sizeof(*this));
67    size = sizeof(android::ResTable_config);
68}
69
70inline ConfigDescription::ConfigDescription(const android::ResTable_config& o) {
71    *static_cast<android::ResTable_config*>(this) = o;
72    size = sizeof(android::ResTable_config);
73}
74
75inline ConfigDescription::ConfigDescription(const ConfigDescription& o) {
76    *static_cast<android::ResTable_config*>(this) = o;
77}
78
79inline ConfigDescription::ConfigDescription(ConfigDescription&& o) {
80    *this = o;
81}
82
83inline ConfigDescription& ConfigDescription::operator=(const android::ResTable_config& o) {
84    *static_cast<android::ResTable_config*>(this) = o;
85    size = sizeof(android::ResTable_config);
86    return *this;
87}
88
89inline ConfigDescription& ConfigDescription::operator=(const ConfigDescription& o) {
90    *static_cast<android::ResTable_config*>(this) = o;
91    return *this;
92}
93
94inline ConfigDescription& ConfigDescription::operator=(ConfigDescription&& o) {
95    *this = o;
96    return *this;
97}
98
99inline bool ConfigDescription::operator<(const ConfigDescription& o) const {
100    return compare(o) < 0;
101}
102
103inline bool ConfigDescription::operator<=(const ConfigDescription& o) const {
104    return compare(o) <= 0;
105}
106
107inline bool ConfigDescription::operator==(const ConfigDescription& o) const {
108    return compare(o) == 0;
109}
110
111inline bool ConfigDescription::operator!=(const ConfigDescription& o) const {
112    return compare(o) != 0;
113}
114
115inline bool ConfigDescription::operator>=(const ConfigDescription& o) const {
116    return compare(o) >= 0;
117}
118
119inline bool ConfigDescription::operator>(const ConfigDescription& o) const {
120    return compare(o) > 0;
121}
122
123inline ::std::ostream& operator<<(::std::ostream& out, const ConfigDescription& o) {
124    return out << o.toString().string();
125}
126
127} // namespace aapt
128
129#endif // AAPT_CONFIG_DESCRIPTION_H
130