/* * 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. */ #pragma once #include #include namespace android { struct StylusState { /* Time the stylus event was received. */ nsecs_t when{}; /* * Pressure as reported by the stylus if supported, normalized to the range [0, 1.0]. * The presence of a pressure value indicates that the stylus is able to tell whether it is * touching the display. */ std::optional 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. ToolType::ERASER). */ ToolType toolType{ToolType::UNKNOWN}; void clear() { *this = StylusState{}; } }; } // namespace android