43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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/*
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* Copyright (C) 2019 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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#pragma once
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#include <input/Input.h>
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#include <limits.h>
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namespace android {
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struct StylusState {
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/* Time the stylus event was received. */
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nsecs_t when{};
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/*
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* Pressure as reported by the stylus if supported, normalized to the range [0, 1.0].
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* The presence of a pressure value indicates that the stylus is able to tell whether it is
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* touching the display.
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*/
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std::optional<float> pressure{};
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/* The state of the stylus buttons as a bitfield (e.g. AMOTION_EVENT_BUTTON_SECONDARY). */
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uint32_t buttons{};
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/* Which tool type the stylus is currently using (e.g. ToolType::ERASER). */
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ToolType toolType{ToolType::UNKNOWN};
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void clear() { *this = StylusState{}; }
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};
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} // namespace android
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