Inheritance diagram for VgApplication::VgISimpleGestureManipulatorListener:

Public Member Functions
virtual	~VgISimpleGestureManipulatorListener ()

virtual void	onSimplePinch (const VgEngine::VgGestureState pState, const float pSpan, const float pVelocity)=0

virtual void	onSimpleDrag (const VgEngine::VgGestureState pState, const unsigned int pNbTouch, const float pAverageXOffset, const float pAverageYOffset)=0

virtual void	onClick (float x, float y)=0

virtual void	onDoubleClick (float x, float y)=0

Public Member Functions inherited from VgEngine::VgReferenced
	VgReferenced ()

	VgReferenced (const VgReferenced &pThis)

virtual	~VgReferenced ()

VgReferenced &	operator= (const VgReferenced &pThis)

void	ref () const

int	unref () const

int	getNbReferences () const

Additional Inherited Members
Protected Attributes inherited from VgEngine::VgReferenced
int	mNbReferences

Detailed Description

Listener of simple gestures. It is a convenience class to ease simple gestures handling.

Constructor & Destructor Documentation

virtual VgApplication::VgISimpleGestureManipulatorListener::~VgISimpleGestureManipulatorListener ( )

virtual

virtual void VgApplication::VgISimpleGestureManipulatorListener::onClick	(	float	x,
		float	y
	)

pure virtual

Callback on a click gesture. This gesture has no state.

Parameters

x	normalized screen coordinate. 0.0f is left of screen, 1.0f is right.
y	normalized screen coordinate. 0.0f is top, 1.0f is bottom.

virtual void VgApplication::VgISimpleGestureManipulatorListener::onDoubleClick	(	float	x,
		float	y
	)

pure virtual

Callback on a double click gesture. This gesture has no state.

Parameters

x	normalized screen coordinate. 0.0f is left of screen, 1.0f is right.
y	normalized screen coordinate. 0.0f is top, 1.0f is bottom.

Remarks: these are the same parameters for VgICamera::pickGeographicPoint; there is no filtering of "onClick" events on a double click event, meaning each onDoubleClick event will be preceded by two onClick events.

virtual void VgApplication::VgISimpleGestureManipulatorListener::onSimpleDrag	(	const VgEngine::VgGestureState	pState,
		const unsigned int	pNbTouch,
		const float	pAverageXOffset,
		const float	pAverageYOffset
	)

pure virtual

Callback on a drag gesture.

Parameters

pState	The state associated with the gesture.
pNbTouch	Number of fingers on the touchpad.
pAverageXOffset	Average dragging offset in pixels since previous callback. The offset is computed as an average of each finger's offset.
pAverageYOffset	Average dragging offset in pixels since previous callback. The offset is computed as an average of each finger's offset.

Remarks: This callback handles dragging gestures up to 2 fingers at the same time. With 3 fingers or more, this callback won't be triggered.

virtual void VgApplication::VgISimpleGestureManipulatorListener::onSimplePinch	(	const VgEngine::VgGestureState	pState,
		const float	pSpan,
		const float	pVelocity
	)

pure virtual

Callback on a pinch gesture with two fingers.

Parameters

pState	The state associated with the gesture.
pSpan	Distance in pixels between the two fingers.
pVelocity	Speed in pixels per milliseconds.

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