| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef _UI_INPUTREADER_STYLUS_STATE_H |
| #define _UI_INPUTREADER_STYLUS_STATE_H |
| |
| #include <input/Input.h> |
| |
| #include <limits.h> |
| |
| namespace android { |
| |
| struct StylusState { |
| /* Time the stylus event was received. */ |
| nsecs_t when; |
| /* Pressure as reported by the stylus, normalized to the range [0, 1.0]. */ |
| float pressure; |
| /* The state of the stylus buttons as a bitfield (e.g. AMOTION_EVENT_BUTTON_SECONDARY). */ |
| uint32_t buttons; |
| /* Which tool type the stylus is currently using (e.g. AMOTION_EVENT_TOOL_TYPE_ERASER). */ |
| int32_t toolType; |
| |
| void copyFrom(const StylusState& other) { |
| when = other.when; |
| pressure = other.pressure; |
| buttons = other.buttons; |
| toolType = other.toolType; |
| } |
| |
| void clear() { |
| when = LLONG_MAX; |
| pressure = 0.f; |
| buttons = 0; |
| toolType = AMOTION_EVENT_TOOL_TYPE_UNKNOWN; |
| } |
| }; |
| |
| } // namespace android |
| |
| #endif // _UI_INPUTREADER_STYLUS_STATE_H |