1 /* 2 * Copyright (C) 2019 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 _UI_INPUTREADER_SINGLE_TOUCH_MOTION_ACCUMULATOR_H 18 #define _UI_INPUTREADER_SINGLE_TOUCH_MOTION_ACCUMULATOR_H 19 20 #include <stdint.h> 21 22 namespace android { 23 24 class InputDeviceContext; 25 struct RawEvent; 26 27 /* Keeps track of the state of single-touch protocol. */ 28 class SingleTouchMotionAccumulator { 29 public: 30 SingleTouchMotionAccumulator(); 31 32 void process(const RawEvent* rawEvent); 33 void reset(InputDeviceContext& deviceContext); 34 getAbsoluteX()35 inline int32_t getAbsoluteX() const { return mAbsX; } getAbsoluteY()36 inline int32_t getAbsoluteY() const { return mAbsY; } getAbsolutePressure()37 inline int32_t getAbsolutePressure() const { return mAbsPressure; } getAbsoluteToolWidth()38 inline int32_t getAbsoluteToolWidth() const { return mAbsToolWidth; } getAbsoluteDistance()39 inline int32_t getAbsoluteDistance() const { return mAbsDistance; } getAbsoluteTiltX()40 inline int32_t getAbsoluteTiltX() const { return mAbsTiltX; } getAbsoluteTiltY()41 inline int32_t getAbsoluteTiltY() const { return mAbsTiltY; } 42 43 private: 44 int32_t mAbsX; 45 int32_t mAbsY; 46 int32_t mAbsPressure; 47 int32_t mAbsToolWidth; 48 int32_t mAbsDistance; 49 int32_t mAbsTiltX; 50 int32_t mAbsTiltY; 51 52 void clearAbsoluteAxes(); 53 }; 54 55 } // namespace android 56 57 #endif // _UI_INPUTREADER_SINGLE_TOUCH_MOTION_ACCUMULATOR_H