Pointer Struct Reference

Pointer event data. More...

#include <event.h>

Public Types
enum class	Button { none , left , middle , right }
	Definitions for pointer buttons. More...

Public Member Functions
constexpr	Pointer () noexcept=default
constexpr	Pointer (const DisplayPoint &p, Button b, size_t s=0) noexcept
constexpr	Pointer (const DisplayPoint &p, const DisplayPoint &d, size_t s=0) noexcept
constexpr	Pointer (const DisplayPoint &p, size_t s=0) noexcept
EGT_NODISCARD DisplayPoint	delta () const
	Get the drag delta.

Public Attributes
Button	btn {Button::none}
	Pointer button value.
DisplayPoint	drag_start
	The mouse point where EventId::pointer_drag_start occurred.
DisplayPoint	point
	Mouse position in display coordinates.
size_t	slot {}
	The event slot. Used for multi-touch.

Detailed Description

Pointer event data.

Member Enumeration Documentation

Button

enum class Button

strong

Definitions for pointer buttons.

Enumerator
none
left
middle
right

Constructor & Destructor Documentation

Pointer() [1/4]

constexpr Pointer ( )

constexprdefaultnoexcept

Pointer() [2/4]

constexpr Pointer ( const DisplayPoint &  p, size_t  s = 0  )

inlineexplicitconstexprnoexcept

Parameters

[in]	p	Display point of the event.
[in]	s	Slot of the event.

Pointer() [3/4]

constexpr Pointer ( const DisplayPoint &  p, Button  b, size_t  s = 0  )

inlineconstexprnoexcept

Parameters

[in]	p	Display point of the event.
[in]	b	Pointer button data of the event.
[in]	s	Slot of the event.

Pointer() [4/4]

constexpr Pointer ( const DisplayPoint &  p, const DisplayPoint &  d, size_t  s = 0  )

inlineconstexprnoexcept

Parameters

[in]	p	Display point of the event.
[in]	d	Drag start of the event.
[in]	s	Slot of the event.

Member Function Documentation

delta()

EGT_NODISCARD DisplayPoint delta ( ) const

inline

Get the drag delta.

Member Data Documentation

btn

Button btn {Button::none}

Pointer button value.

drag_start

DisplayPoint drag_start

The mouse point where EventId::pointer_drag_start occurred.

Only valid with the following events:

• EventId::pointer_drag_start
• EventId::pointer_drag
• EventId::pointer_drag_stop

point

DisplayPoint point

Mouse position in display coordinates.

slot

size_t slot {}

The event slot. Used for multi-touch.