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 
17 #ifndef __AAPT_CONFIG_H
18 #define __AAPT_CONFIG_H
19 
20 #include <set>
21 #include <utils/String8.h>
22 
23 #include "ConfigDescription.h"
24 
25 /**
26  * Utility methods for dealing with configurations.
27  */
28 namespace AaptConfig {
29 
30 /**
31  * Parse a string of the form 'fr-sw600dp-land' and fill in the
32  * given ResTable_config with resulting configuration parameters.
33  *
34  * The resulting configuration has the appropriate sdkVersion defined
35  * for backwards compatibility.
36  */
37 bool parse(const android::String8& str, ConfigDescription* out = NULL);
38 
39 /**
40  * Parse a comma separated list of configuration strings. Duplicate configurations
41  * will be removed.
42  *
43  * Example input: "fr,de-land,fr-sw600dp-land"
44  */
45 bool parseCommaSeparatedList(const android::String8& str, std::set<ConfigDescription>* outSet);
46 
47 /**
48  * If the configuration uses an axis that was added after
49  * the original Android release, make sure the SDK version
50  * is set accordingly.
51  */
52 void applyVersionForCompatibility(ConfigDescription* config);
53 
54 // Individual axis
55 bool parseMcc(const char* str, android::ResTable_config* out = NULL);
56 bool parseMnc(const char* str, android::ResTable_config* out = NULL);
57 bool parseLayoutDirection(const char* str, android::ResTable_config* out = NULL);
58 bool parseSmallestScreenWidthDp(const char* str, android::ResTable_config* out = NULL);
59 bool parseScreenWidthDp(const char* str, android::ResTable_config* out = NULL);
60 bool parseScreenHeightDp(const char* str, android::ResTable_config* out = NULL);
61 bool parseScreenLayoutSize(const char* str, android::ResTable_config* out = NULL);
62 bool parseScreenLayoutLong(const char* str, android::ResTable_config* out = NULL);
63 bool parseScreenRound(const char* name, android::ResTable_config* out = NULL);
64 bool parseOrientation(const char* str, android::ResTable_config* out = NULL);
65 bool parseUiModeType(const char* str, android::ResTable_config* out = NULL);
66 bool parseUiModeNight(const char* str, android::ResTable_config* out = NULL);
67 bool parseDensity(const char* str, android::ResTable_config* out = NULL);
68 bool parseTouchscreen(const char* str, android::ResTable_config* out = NULL);
69 bool parseKeysHidden(const char* str, android::ResTable_config* out = NULL);
70 bool parseKeyboard(const char* str, android::ResTable_config* out = NULL);
71 bool parseNavHidden(const char* str, android::ResTable_config* out = NULL);
72 bool parseNavigation(const char* str, android::ResTable_config* out = NULL);
73 bool parseScreenSize(const char* str, android::ResTable_config* out = NULL);
74 bool parseVersion(const char* str, android::ResTable_config* out = NULL);
75 
76 android::String8 getVersion(const android::ResTable_config& config);
77 
78 /**
79  * Returns true if the two configurations only differ by the specified axis.
80  * The axis mask is a bitmask of CONFIG_* constants.
81  */
82 bool isSameExcept(const android::ResTable_config& a, const android::ResTable_config& b, int configMask);
83 
84 /**
85  * Returns true if the configuration only has the density specified. In the case
86  * of 'anydpi', the version is ignored.
87  */
88 bool isDensityOnly(const android::ResTable_config& config);
89 
90 } // namespace AaptConfig
91 
92 #endif // __AAPT_CONFIG_H
93