This class emits a signals when a long press gesture occurs that meets the requirements set by the application. More...

Inheritance diagram for Dali::LongPressGestureDetector:

Public Types
typedef Signal< void(Actor, const LongPressGesture &) >	DetectedSignalType
	Gesture detected signal type.
Public Member Functions
	LongPressGestureDetector ()
	Creates an uninitialized LongPressGestureDetector; this can be initialized with LongPressGestureDetector::New().
	~LongPressGestureDetector ()
	Destructor.
	LongPressGestureDetector (const LongPressGestureDetector &handle)
	This copy constructor is required for (smart) pointer semantics.
LongPressGestureDetector &	operator= (const LongPressGestureDetector &rhs)
	This assignment operator is required for (smart) pointer semantics.
void	SetTouchesRequired (uint32_t touches)
	Sets the number of touches required.
void	SetTouchesRequired (uint32_t minTouches, uint32_t maxTouches)
	Sets the minimum and maximum touches required.
uint32_t	GetMinimumTouchesRequired () const
	Retrieves the minimum number of touches required.
uint32_t	GetMaximumTouchesRequired () const
	Retrieves the maximum number of touches required.
DetectedSignalType &	DetectedSignal ()
	This signal is emitted when the specified long press is detected on the attached actor.
Static Public Member Functions
static LongPressGestureDetector	New ()
	Creates an initialized LongPressGestureDetector.
static LongPressGestureDetector	New (uint32_t touchesRequired)
	Creates an initialized LongPressGestureDetector with the number of touches required.
static LongPressGestureDetector	New (uint32_t minTouches, uint32_t maxTouches)
	Creates an initialized LongPressGestureDetector with the minimum and maximum number of touches required.
static LongPressGestureDetector	DownCast (BaseHandle handle)
	Downcasts a handle to LongPressGestureDetector handle.

Detailed Description

This class emits a signals when a long press gesture occurs that meets the requirements set by the application.

Since:: 3.0, DALi version 1.0.0

For any valid long press, two signals will be emitted:

First identifying the beginning (state = Started) i.e. when fingers held down for the required time.
Second identifying the ending (state = Finished) i.e. when fingers are released.

The application programmer can use this gesture detector as follows:

 LongPressGestureDetector detector = LongPressGestureDetector::New();
 detector.Attach(myActor);
 detector.DetectedSignal().Connect(this, &MyApplication::OnLongPress);

See also:: LongPressGesture

Signals | Signal Name | Method | |-------------------|-----------------------| | longPressDetected | DetectedSignal() |

Member Typedef Documentation

typedef Signal< void ( Actor, const LongPressGesture& ) > Dali::LongPressGestureDetector::DetectedSignalType

Gesture detected signal type.

Since:: 3.0, DALi version 1.0.0

Constructor & Destructor Documentation

Dali::LongPressGestureDetector::LongPressGestureDetector ( )

Creates an uninitialized LongPressGestureDetector; this can be initialized with LongPressGestureDetector::New().

Calling member functions with an uninitialized LongPressGestureDetector handle is not allowed.

Since:: 3.0, DALi version 1.0.0

Dali::LongPressGestureDetector::~LongPressGestureDetector ( )

Destructor.

This is non-virtual since derived Handle types must not contain data or virtual methods.

Since:: 3.0, DALi version 1.0.0

Dali::LongPressGestureDetector::LongPressGestureDetector ( const LongPressGestureDetector & handle )

This copy constructor is required for (smart) pointer semantics.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in] handle A reference to the copied handle

Member Function Documentation

DetectedSignalType& Dali::LongPressGestureDetector::DetectedSignal ( )

This signal is emitted when the specified long press is detected on the attached actor.

A callback of the following type may be connected:

   void YourCallbackName( Actor actor, const LongPressGesture& gesture );

Since:: 3.0, DALi version 1.0.0

Returns:: The signal to connect to

Precondition:: The gesture detector has been initialized.

static LongPressGestureDetector Dali::LongPressGestureDetector::DownCast ( BaseHandle handle ) [static]

Downcasts a handle to LongPressGestureDetector handle.

If handle points to a LongPressGestureDetector object, the downcast produces valid handle. If not, the returned handle is left uninitialized.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in] handle Handle to an object

Returns:: Handle to a LongPressGestureDetector object or an uninitialized handle

Reimplemented from Dali::GestureDetector.

uint32_t Dali::LongPressGestureDetector::GetMaximumTouchesRequired ( ) const

Retrieves the maximum number of touches required.

Since:: 3.0, DALi version 1.0.0

Returns:: The maximum number of touches required

Precondition:: The gesture detector has been initialized.

uint32_t Dali::LongPressGestureDetector::GetMinimumTouchesRequired ( ) const

Retrieves the minimum number of touches required.

Since:: 3.0, DALi version 1.0.0

Returns:: The minimum number of touches required

Precondition:: The gesture detector has been initialized.

static LongPressGestureDetector Dali::LongPressGestureDetector::New ( ) [static]

Creates an initialized LongPressGestureDetector.

By default, this would create a gesture detector that requires only one touch.

Since:: 3.0, DALi version 1.0.0

Returns:: A handle to a newly allocated Dali resource

Reimplemented from Dali::Handle.

static LongPressGestureDetector Dali::LongPressGestureDetector::New ( uint32_t touchesRequired ) [static]

Creates an initialized LongPressGestureDetector with the number of touches required.

A long press gesture will be emitted from this detector if the number of fingers touching the screen is equal to the touches required.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in] touchesRequired The number of touches required

Returns:: A handle to a newly allocated Dali resource

static LongPressGestureDetector Dali::LongPressGestureDetector::New	(	uint32_t	minTouches,
		uint32_t	maxTouches
	)		`[static]`

Creates an initialized LongPressGestureDetector with the minimum and maximum number of touches required.

A long press gesture will be emitted from this detector if the number of fingers touching the screen falls between the minimum and maximum touches set.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in]	minTouches	The minimum number of touches required
[in]	maxTouches	The maximum number of touches required

Returns:: A handle to a newly allocated Dali resource

LongPressGestureDetector& Dali::LongPressGestureDetector::operator= ( const LongPressGestureDetector & rhs )

This assignment operator is required for (smart) pointer semantics.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in] rhs A reference to the copied handle

Returns:: A reference to this

void Dali::LongPressGestureDetector::SetTouchesRequired ( uint32_t touches )

Sets the number of touches required.

The number of touches corresponds to the number of fingers a user has on the screen. This sets the minimum and maximum touches to the input parameter.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in] touches Touches required

Precondition:: The gesture detector has been initialized.

Note:: The default is '1'.

void Dali::LongPressGestureDetector::SetTouchesRequired	(	uint32_t	minTouches,
		uint32_t	maxTouches
	)

Sets the minimum and maximum touches required.

The number of touches corresponds to the number of fingers a user has on the screen.

Since:: 3.0, DALi version 1.0.0

Parameters:

[in]	minTouches	Minimum Touches required
[in]	maxTouches	Maximum Touches required

Precondition:: The gesture detector has been initialized.

Note:: The default is '1'.

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation