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82 lines
2.0 KiB
82 lines
2.0 KiB
4 months ago
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/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _LIBINPUT_VIRTUAL_KEY_MAP_H
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#define _LIBINPUT_VIRTUAL_KEY_MAP_H
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#include <stdint.h>
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#include <input/Input.h>
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#include <utils/Errors.h>
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#include <utils/KeyedVector.h>
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#include <utils/Tokenizer.h>
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#include <utils/Unicode.h>
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#include <vector>
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namespace android {
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/* Describes a virtual key. */
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struct VirtualKeyDefinition {
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int32_t scanCode;
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// configured position data, specified in display coords
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int32_t centerX;
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int32_t centerY;
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int32_t width;
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int32_t height;
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};
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/**
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* Describes a collection of virtual keys on a touch screen in terms of
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* virtual scan codes and hit rectangles.
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*
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* This object is immutable after it has been loaded.
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*/
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class VirtualKeyMap {
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public:
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~VirtualKeyMap();
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static std::unique_ptr<VirtualKeyMap> load(const std::string& filename);
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inline const std::vector<VirtualKeyDefinition>& getVirtualKeys() const {
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return mVirtualKeys;
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}
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private:
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class Parser {
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VirtualKeyMap* mMap;
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Tokenizer* mTokenizer;
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public:
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Parser(VirtualKeyMap* map, Tokenizer* tokenizer);
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~Parser();
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status_t parse();
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private:
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bool consumeFieldDelimiterAndSkipWhitespace();
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bool parseNextIntField(int32_t* outValue);
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};
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std::vector<VirtualKeyDefinition> mVirtualKeys;
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VirtualKeyMap();
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};
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} // namespace android
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#endif // _LIBINPUT_KEY_CHARACTER_MAP_H
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