64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
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* Copyright (C) 2010 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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#ifndef _UI_POINTER_CONTROLLER_H
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#define _UI_POINTER_CONTROLLER_H
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#include <utils/RefBase.h>
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namespace android {
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enum {
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POINTER_BUTTON_1 = 1 << 0,
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};
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/**
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* Interface for tracking a single (mouse) pointer.
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*
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* The pointer controller is responsible for providing synchronization and for tracking
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* display orientation changes if needed.
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*/
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class PointerControllerInterface : public virtual RefBase {
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protected:
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PointerControllerInterface() { }
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virtual ~PointerControllerInterface() { }
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public:
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/* Gets the bounds of the region that the pointer can traverse.
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* Returns true if the bounds are available. */
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virtual bool getBounds(float* outMinX, float* outMinY,
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float* outMaxX, float* outMaxY) const = 0;
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/* Move the pointer. */
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virtual void move(float deltaX, float deltaY) = 0;
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/* Sets a mask that indicates which buttons are pressed. */
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virtual void setButtonState(uint32_t buttonState) = 0;
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/* Gets a mask that indicates which buttons are pressed. */
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virtual uint32_t getButtonState() const = 0;
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/* Sets the absolute location of the pointer. */
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virtual void setPosition(float x, float y) = 0;
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/* Gets the absolute location of the pointer. */
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virtual void getPosition(float* outX, float* outY) const = 0;
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};
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} // namespace android
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#endif // _UI_POINTER_CONTROLLER_H
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