A touch input device. More...

#include <GainputInputDeviceTouch.h>

Inheritance diagram for gainput::InputDeviceTouch:

Public Member Functions
	InputDeviceTouch (InputManager &manager, DeviceId device, unsigned index, DeviceVariant variant)
	Initializes the device. More...

	~InputDeviceTouch ()
	Shuts down the device.

DeviceType	GetType () const
	Returns DT_TOUCH.

DeviceVariant	GetVariant () const
	Returns the device variant.

const char *	GetTypeName () const
	Returns the device type's name.

bool	IsValidButtonId (DeviceButtonId deviceButton) const
	Returns if the given button is valid for this device.

size_t	GetAnyButtonDown (DeviceButtonSpec *outButtons, size_t maxButtonCount) const
	Checks if any button on this device is down. More...

size_t	GetButtonName (DeviceButtonId deviceButton, char *buffer, size_t bufferLength) const
	Gets the name of the given button. More...

ButtonType	GetButtonType (DeviceButtonId deviceButton) const
	Returns the type of the given button.

DeviceButtonId	GetButtonByName (const char *name) const
	Returns the button's ID if the name is of this device's buttons. More...

InputState *	GetNextInputState ()
	Returns the device's state that is currently being determined, may be 0 if not available.

InputDeviceTouchImpl *	GetPimpl ()
	Returns the platform-specific implementation of this device.

Public Member Functions inherited from gainput::InputDevice
	InputDevice (InputManager &manager, DeviceId device, unsigned index)
	Initializes the input device. More...

virtual	~InputDevice ()
	Empty virtual destructor.

void	Update (InputDeltaState *delta)
	Update this device, internally called by InputManager. More...

DeviceId	GetDeviceId () const
	Returns this device's ID.

unsigned	GetIndex () const
	Returns the device's index among devices of the same type.

virtual bool	IsLateUpdate () const
	Returns if this device should be updated after other devices.

DeviceState	GetState () const
	Returns the device state.

virtual bool	IsAvailable () const
	Returns if this device is available.

bool	GetBool (DeviceButtonId deviceButton) const
	Returns the current state of the given button.

bool	GetBoolPrevious (DeviceButtonId deviceButton) const
	Returns the previous state of the given button.

float	GetFloat (DeviceButtonId deviceButton) const
	Returns the current state of the given button.

float	GetFloatPrevious (DeviceButtonId deviceButton) const
	Returns the previous state of the given button.

InputState *	GetInputState ()
	Returns the device's state, probably best if only used internally.

const InputState *	GetInputState () const
	Returns the device's state, probably best if only used internally.

InputState *	GetPreviousInputState ()
	Returns the device's previous state, probably best if only used internally.

float	GetDeadZone (DeviceButtonId buttonId) const
	Returns the previously set dead zone for the given button or 0.0f if none was set yet.

void	SetDeadZone (DeviceButtonId buttonId, float value)
	Sets the dead zone for the given button.

void	SetDebugRenderingEnabled (bool enabled)
	Enable/disable debug rendering of this device.

bool	IsDebugRenderingEnabled () const
	Returns true if debug rendering is enabled, false otherwise.

bool	IsSynced () const

void	SetSynced (bool synced)
	Sets if this device is being controlled remotely or from a recording. More...

Protected Member Functions
void	InternalUpdate (InputDeltaState *delta)
	Implementation of the device's Update function. More...

DeviceState	InternalGetState () const
	Implementation of the device's GetState function. More...

Protected Member Functions inherited from gainput::InputDevice
size_t	CheckAllButtonsDown (DeviceButtonSpec *outButtons, size_t maxButtonCount, unsigned start, unsigned end) const
	Checks which buttons are down. More...

Additional Inherited Members
Public Types inherited from gainput::InputDevice
enum	DeviceType { DT_MOUSE, DT_KEYBOARD, DT_PAD, DT_TOUCH, DT_BUILTIN, DT_REMOTE, DT_GESTURE, DT_CUSTOM, DT_COUNT }
	Type of an input device. More...

enum	DeviceVariant { DV_STANDARD, DV_RAW, DV_NULL }
	Variant of an input device type. More...

enum	DeviceState { DS_OK, DS_LOW_BATTERY, DS_UNAVAILABLE }
	State of an input device. More...

Static Public Attributes inherited from gainput::InputDevice
static const unsigned	AutoIndex = unsigned(-1)

Protected Attributes inherited from gainput::InputDevice
InputManager &	manager_
	The manager this device belongs to.

DeviceId	deviceId_
	The ID of this device.

unsigned	index_
	Index of this device among devices of the same type.

InputState *	state_
	The current state of this device.

InputState *	previousState_
	The previous state of this device.

float *	deadZones_

bool	debugRenderingEnabled_
	Specifies if this device is currently rendering debug information.

bool	synced_

Detailed Description

A touch input device.

This input device provides support for touch screen/surface devices. The valid device buttons are defined in the TouchButton enum. For each touch point, there is a boolean input (Touch*Down) showing if the touch point is active, two float inputs (Touch*X, Touch*Y) showing the touch point's position, and a float input (Touch*Pressure) showing the touch's pressure.

Not all touch points must be numbered consecutively, i.e. point #2 may be down even though #0 and #1 are not.

The number of simultaneously possible touch points is implementaion-dependent.

This device is implemented on Android NDK.

Examples:: /samples/basic/basicsample_android.cpp, /samples/dynamic/dynamicsample.cpp, /samples/gesture/gesturesample.cpp, /samples/listener/listenersample.cpp, /samples/recording/recordingsample.cpp, and /samples/sync/syncsample.cpp.

Constructor & Destructor Documentation

◆ InputDeviceTouch()

gainput::InputDeviceTouch::InputDeviceTouch	(	InputManager &	manager,
		DeviceId	device,
		unsigned	index,
		DeviceVariant	variant
	)

Initializes the device.

Instantiate the device using InputManager::CreateDevice().

Parameters

manager	The input manager this device is managed by.
device	The ID of this device.

Member Function Documentation

◆ GetAnyButtonDown()

size_t gainput::InputDeviceTouch::GetAnyButtonDown	(	DeviceButtonSpec *	outButtons,
		size_t	maxButtonCount
	)		const

virtual

Checks if any button on this device is down.

Parameters

[out]	outButtons	An array with maxButtonCount fields to receive the device buttons that are down.
	maxButtonCount	The number of fields in outButtons.

Returns: The number of device buttons written to outButtons.

Reimplemented from gainput::InputDevice.

◆ GetButtonByName()

DeviceButtonId gainput::InputDeviceTouch::GetButtonByName ( const char * name ) const

virtual

Returns the button's ID if the name is of this device's buttons.

Parameters

name	Name of the device button to look for.

Returns: The device button ID.

Reimplemented from gainput::InputDevice.

◆ GetButtonName()

size_t gainput::InputDeviceTouch::GetButtonName	(	DeviceButtonId	deviceButton,
		char *	buffer,
		size_t	bufferLength
	)		const

virtual

Gets the name of the given button.

Parameters

deviceButton	ID of the button.
buffer	A char-buffer to receive the button name.
bufferLength	Length of the buffer receiving the button name in bytes.

Returns: The number of bytes written to buffer (includes the trailing \0).

Reimplemented from gainput::InputDevice.

◆ InternalGetState()

DeviceState gainput::InputDeviceTouch::InternalGetState ( ) const

protectedvirtual

Implementation of the device's GetState function.

Returns: The device's state.

Implements gainput::InputDevice.

◆ InternalUpdate()

void gainput::InputDeviceTouch::InternalUpdate ( InputDeltaState * delta )

protectedvirtual

Implementation of the device's Update function.

Parameters

delta The delta state to add changes to. May be 0.

Implements gainput::InputDevice.

The documentation for this class was generated from the following file:

lib/include/gainput/GainputInputDeviceTouch.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ InputDeviceTouch()

Member Function Documentation

◆ GetAnyButtonDown()

◆ GetButtonByName()

◆ GetButtonName()

◆ InternalGetState()

◆ InternalUpdate()