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      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 parseWideColorGamut(const char* name, android::ResTable_config* out = NULL);
     65 bool parseHdr(const char* name, android::ResTable_config* out = NULL);
     66 bool parseOrientation(const char* str, android::ResTable_config* out = NULL);
     67 bool parseUiModeType(const char* str, android::ResTable_config* out = NULL);
     68 bool parseUiModeNight(const char* str, android::ResTable_config* out = NULL);
     69 bool parseDensity(const char* str, android::ResTable_config* out = NULL);
     70 bool parseTouchscreen(const char* str, android::ResTable_config* out = NULL);
     71 bool parseKeysHidden(const char* str, android::ResTable_config* out = NULL);
     72 bool parseKeyboard(const char* str, android::ResTable_config* out = NULL);
     73 bool parseNavHidden(const char* str, android::ResTable_config* out = NULL);
     74 bool parseNavigation(const char* str, android::ResTable_config* out = NULL);
     75 bool parseScreenSize(const char* str, android::ResTable_config* out = NULL);
     76 bool parseVersion(const char* str, android::ResTable_config* out = NULL);
     77 
     78 android::String8 getVersion(const android::ResTable_config& config);
     79 
     80 /**
     81  * Returns true if the two configurations only differ by the specified axis.
     82  * The axis mask is a bitmask of CONFIG_* constants.
     83  */
     84 bool isSameExcept(const android::ResTable_config& a, const android::ResTable_config& b, int configMask);
     85 
     86 /**
     87  * Returns true if the configuration only has the density specified. In the case
     88  * of 'anydpi', the version is ignored.
     89  */
     90 bool isDensityOnly(const android::ResTable_config& config);
     91 
     92 } // namespace AaptConfig
     93 
     94 #endif // __AAPT_CONFIG_H
     95