1 /* 2 * Copyright (C) 2016 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_FILTER_CONFIGFILTER_H 18 #define AAPT_FILTER_CONFIGFILTER_H 19 20 #include <set> 21 #include <utility> 22 23 #include "ConfigDescription.h" 24 25 namespace aapt { 26 27 /** 28 * Matches ConfigDescriptions based on some pattern. 29 */ 30 class IConfigFilter { 31 public: 32 virtual ~IConfigFilter() = default; 33 34 /** 35 * Returns true if the filter matches the configuration, false otherwise. 36 */ 37 virtual bool Match(const ConfigDescription& config) const = 0; 38 }; 39 40 /** 41 * Implements config axis matching. An axis is one component of a configuration, like screen density 42 * or locale. If an axis is specified in the filter, and the axis is specified in the configuration 43 * to match, they must be compatible. Otherwise the configuration to match is accepted. 44 * 45 * Used when handling "-c" options. 46 */ 47 class AxisConfigFilter : public IConfigFilter { 48 public: 49 void AddConfig(ConfigDescription config); 50 51 bool Match(const ConfigDescription& config) const override; 52 53 private: 54 std::set<std::pair<ConfigDescription, uint32_t>> configs_; 55 uint32_t config_mask_ = 0; 56 }; 57 58 } // namespace aapt 59 60 #endif /* AAPT_FILTER_CONFIGFILTER_H */ 61
