4e42229bdd
git-subtree-dir: external/gainput git-subtree-split: 2be0a50089eafcc6fccb66142180082e48f27f4c
108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
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#ifndef GAINPUTINPUTDEVICETOUCH_H_
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#define GAINPUTINPUTDEVICETOUCH_H_
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namespace gainput
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{
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/// All valid device inputs for InputDeviceTouch.
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enum TouchButton
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{
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Touch0Down,
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Touch0X,
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Touch0Y,
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Touch0Pressure,
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Touch1Down,
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Touch1X,
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Touch1Y,
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Touch1Pressure,
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Touch2Down,
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Touch2X,
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Touch2Y,
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Touch2Pressure,
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Touch3Down,
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Touch3X,
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Touch3Y,
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Touch3Pressure,
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Touch4Down,
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Touch4X,
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Touch4Y,
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Touch4Pressure,
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Touch5Down,
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Touch5X,
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Touch5Y,
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Touch5Pressure,
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Touch6Down,
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Touch6X,
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Touch6Y,
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Touch6Pressure,
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Touch7Down,
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Touch7X,
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Touch7Y,
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Touch7Pressure,
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TouchCount_
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};
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class InputDeviceTouchImpl;
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/// A touch input device.
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/**
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* This input device provides support for touch screen/surface devices. The valid device buttons are defined
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* in the ::TouchButton enum. For each touch point, there is a boolean input (Touch*Down) showing if the
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* touch point is active, two float inputs (Touch*X, Touch*Y) showing the touch point's position, and a
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* float input (Touch*Pressure) showing the touch's pressure.
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*
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* Not all touch points must be numbered consecutively, i.e. point #2 may be down even though #0 and #1 are not.
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*
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* The number of simultaneously possible touch points is implementaion-dependent.
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*
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* This device is implemented on Android NDK.
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*/
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class GAINPUT_LIBEXPORT InputDeviceTouch : public InputDevice
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{
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public:
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/// Initializes the device.
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/**
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* Instantiate the device using InputManager::CreateDevice().
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*
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* \param manager The input manager this device is managed by.
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* \param device The ID of this device.
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*/
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InputDeviceTouch(InputManager& manager, DeviceId device, unsigned index, DeviceVariant variant);
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/// Shuts down the device.
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~InputDeviceTouch();
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/// Returns DT_TOUCH.
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DeviceType GetType() const { return DT_TOUCH; }
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DeviceVariant GetVariant() const;
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const char* GetTypeName() const { return "touch"; }
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bool IsValidButtonId(DeviceButtonId deviceButton) const;
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size_t GetAnyButtonDown(DeviceButtonSpec* outButtons, size_t maxButtonCount) const;
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size_t GetButtonName(DeviceButtonId deviceButton, char* buffer, size_t bufferLength) const;
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ButtonType GetButtonType(DeviceButtonId deviceButton) const;
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DeviceButtonId GetButtonByName(const char* name) const;
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InputState* GetNextInputState();
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/// Returns the platform-specific implementation of this device.
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InputDeviceTouchImpl* GetPimpl() { return impl_; }
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protected:
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void InternalUpdate(InputDeltaState* delta);
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DeviceState InternalGetState() const;
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private:
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InputDeviceTouchImpl* impl_;
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};
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}
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#endif
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