4e42229bdd
git-subtree-dir: external/gainput git-subtree-split: 2be0a50089eafcc6fccb66142180082e48f27f4c
67 lines
2.0 KiB
C++
67 lines
2.0 KiB
C++
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#ifndef GAINPUTSIMULTANEOUSLYDOWNGESTURE_H_
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#define GAINPUTSIMULTANEOUSLYDOWNGESTURE_H_
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#ifdef GAINPUT_ENABLE_SIMULTANEOUSLY_DOWN_GESTURE
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namespace gainput
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{
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/// Buttons provided by the SimultaneouslyDownGesture.
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enum SimultaneouslyDownAction
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{
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SimultaneouslyDownTriggered ///< The button triggered by double-clicking.
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};
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/// A gesture that tracks if a number of buttons is down simultaneously.
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/**
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* This gesture can be used to detect if multiple buttons are down at the same time. Its only
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* device button ::SimultaneouslyDownTriggered is true while all buttons provided through AddButton()
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* are down.
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*
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* After instantiating the gesture like any other input device, call AddButton() as often as necessary
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* to properly set it up.
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*
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* In order for this gesture to be available, Gainput must be built with \c GAINPUT_ENABLE_ALL_GESTURES or
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* \c GAINPUT_ENABLE_SIMULTANEOUSLY_DOWN_GESTURE defined.
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*
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* \sa AddButton
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* \sa InputManager::CreateDevice
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*/
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class GAINPUT_LIBEXPORT SimultaneouslyDownGesture : public InputGesture
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{
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public:
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/// Initializes the gesture.
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SimultaneouslyDownGesture(InputManager& manager, DeviceId device, unsigned index, DeviceVariant variant);
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/// Uninitializes the gesture.
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~SimultaneouslyDownGesture();
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/// Adds the given button as a button to check.
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/**
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* \param device ID of the input device containing the button to be checked.
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* \param button ID of the device button to be checked.
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*/
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void AddButton(DeviceId device, DeviceButtonId button);
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/// Removes all buttons previously registered through AddButton().
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void ClearButtons();
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bool IsValidButtonId(DeviceButtonId deviceButton) const { return deviceButton == SimultaneouslyDownTriggered; }
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ButtonType GetButtonType(DeviceButtonId deviceButton) const { GAINPUT_UNUSED(deviceButton); GAINPUT_ASSERT(IsValidButtonId(deviceButton)); return BT_BOOL; }
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protected:
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void InternalUpdate(InputDeltaState* delta);
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private:
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Array<DeviceButtonSpec> buttons_;
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};
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}
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#endif
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#endif
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