Tizen(Headed) Native API  6.5
Public Types | Public Member Functions | Public Attributes
Dali::WheelEvent Struct Reference
Events

The wheel event structure is used to store a wheel rolling, it facilitates processing of the wheel rolling and passing to other libraries like Toolkit. More...

Public Types

enum  Type
 Enumeration for specifying the type of the wheel event. More...

Public Member Functions

 WheelEvent ()
 Default constructor.
 WheelEvent (Type type, int32_t direction, uint32_t modifiers, Vector2 point, int32_t z, uint32_t timeStamp)
 Constructor.
 ~WheelEvent ()
 Destructor.
bool IsShiftModifier () const
 Checks to see if Shift key modifier has been supplied.
bool IsCtrlModifier () const
 Checks to see if Ctrl (control) key modifier has been supplied.
bool IsAltModifier () const
 Checks to see if Alt key modifier has been supplied.

Public Attributes

Type type
 Type of the event.
int32_t direction
 The direction in which the wheel is being rolled.
uint32_t modifiers
 Modifier keys pressed during the event (such as shift, alt and control).
Vector2 point
 The co-ordinates of the cursor relative to the top-left of the screen when the wheel is being rolled.
int32_t z
 The offset of the wheel rolling, where positive value means rolling down or clockwise and negative value means rolling up or counter-clockwise.
uint32_t timeStamp
 The time when the wheel is being rolled.

Detailed Description

The wheel event structure is used to store a wheel rolling, it facilitates processing of the wheel rolling and passing to other libraries like Toolkit.

There is a key modifier which relates to keys like alt, shift and control functions are supplied to check if they have been pressed when the wheel is being rolled.

We support a mouse device and there may be another custom device that support the wheel event. The device type is specified as type. The mouse wheel event can be sent to the specific actor but the custom wheel event will be sent to the stage.

Since:
2.4, DALi version 1.0.0

Member Enumeration Documentation

enum Dali::WheelEvent::Type

Enumeration for specifying the type of the wheel event.

Since:
2.4, DALi version 1.0.0
Enumerator:
MOUSE_WHEEL 

Mouse wheel event.

Since:
2.4, DALi version 1.0.0
CUSTOM_WHEEL 

Custom wheel event.

Since:
2.4, DALi version 1.0.0

Constructor & Destructor Documentation

Dali::WheelEvent::WheelEvent ( )

Default constructor.

Since:
2.4, DALi version 1.0.0
Dali::WheelEvent::WheelEvent ( Type  type,
int32_t  direction,
uint32_t  modifiers,
Vector2  point,
int32_t  z,
uint32_t  timeStamp 
)

Constructor.

Since:
2.4, DALi version 1.0.0
Parameters:
[in]typeThe type of the wheel event
[in]directionThe direction of wheel rolling (0 = default vertical wheel, 1 = horizontal wheel)
[in]modifiersModifier keys pressed during the event (such as shift, alt and control)
[in]pointThe co-ordinates of the cursor relative to the top-left of the screen
[in]zThe offset of rolling (positive value means roll down or clockwise, and negative value means roll up or counter-clockwise)
[in]timeStampThe time the wheel is being rolled
Dali::WheelEvent::~WheelEvent ( )

Destructor.

Since:
2.4, DALi version 1.0.0

Member Function Documentation

bool Dali::WheelEvent::IsAltModifier ( ) const

Checks to see if Alt key modifier has been supplied.

Since:
2.4, DALi version 1.0.0
Returns:
True if alt modifier
bool Dali::WheelEvent::IsCtrlModifier ( ) const

Checks to see if Ctrl (control) key modifier has been supplied.

Since:
2.4, DALi version 1.0.0
Returns:
True if ctrl modifier
bool Dali::WheelEvent::IsShiftModifier ( ) const

Checks to see if Shift key modifier has been supplied.

Since:
2.4, DALi version 1.0.0
Returns:
True if shift modifier

Member Data Documentation

int32_t Dali::WheelEvent::direction

The direction in which the wheel is being rolled.

0 means the default vertical wheel, and 1 means horizontal wheel.

Type Dali::WheelEvent::type

Type of the event.

See also:
Type