michael@0: /*
michael@0:  * Copyright (C) 2010 The Android Open Source Project
michael@0:  *
michael@0:  * Licensed under the Apache License, Version 2.0 (the "License");
michael@0:  * you may not use this file except in compliance with the License.
michael@0:  * You may obtain a copy of the License at
michael@0:  *
michael@0:  *      http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing, software
michael@0:  * distributed under the License is distributed on an "AS IS" BASIS,
michael@0:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0:  * See the License for the specific language governing permissions and
michael@0:  * limitations under the License.
michael@0:  */
michael@0: 
michael@0: #ifndef _ANDROIDFW_VIRTUAL_KEY_MAP_H
michael@0: #define _ANDROIDFW_VIRTUAL_KEY_MAP_H
michael@0: 
michael@0: #include <stdint.h>
michael@0: 
michael@0: #include "Input.h"
michael@0: #include <utils/Errors.h>
michael@0: #include <utils/KeyedVector.h>
michael@0: #include "Tokenizer.h"
michael@0: #include <utils/String8.h>
michael@0: #include <utils/Unicode.h>
michael@0: 
michael@0: namespace android {
michael@0: 
michael@0: /* Describes a virtual key. */
michael@0: struct VirtualKeyDefinition {
michael@0:     int32_t scanCode;
michael@0: 
michael@0:     // configured position data, specified in display coords
michael@0:     int32_t centerX;
michael@0:     int32_t centerY;
michael@0:     int32_t width;
michael@0:     int32_t height;
michael@0: };
michael@0: 
michael@0: 
michael@0: /**
michael@0:  * Describes a collection of virtual keys on a touch screen in terms of
michael@0:  * virtual scan codes and hit rectangles.
michael@0:  *
michael@0:  * This object is immutable after it has been loaded.
michael@0:  */
michael@0: class VirtualKeyMap {
michael@0: public:
michael@0:     ~VirtualKeyMap();
michael@0: 
michael@0:     static status_t load(const String8& filename, VirtualKeyMap** outMap);
michael@0: 
michael@0:     inline const Vector<VirtualKeyDefinition>& getVirtualKeys() const {
michael@0:         return mVirtualKeys;
michael@0:     }
michael@0: 
michael@0: private:
michael@0:     class Parser {
michael@0:         VirtualKeyMap* mMap;
michael@0:         Tokenizer* mTokenizer;
michael@0: 
michael@0:     public:
michael@0:         Parser(VirtualKeyMap* map, Tokenizer* tokenizer);
michael@0:         ~Parser();
michael@0:         status_t parse();
michael@0: 
michael@0:     private:
michael@0:         bool consumeFieldDelimiterAndSkipWhitespace();
michael@0:         bool parseNextIntField(int32_t* outValue);
michael@0:     };
michael@0: 
michael@0:     Vector<VirtualKeyDefinition> mVirtualKeys;
michael@0: 
michael@0:     VirtualKeyMap();
michael@0: };
michael@0: 
michael@0: } // namespace android
michael@0: 
michael@0: #endif // _ANDROIDFW_KEY_CHARACTER_MAP_H