DragScroller Class Reference

Drag scroller object. More...

#include <Selection.h>

Inheritance diagram for DragScroller:

Public Slots
void	timeout (void)

Public Member Functions
	DragScroller (QScrollArea *pScrollArea)
	~DragScroller ()
void	startDrag ()
void	endDrag ()

Private Attributes
QTimer *	m_pTimer
QScrollArea *	m_pScrollArea
const int	m_nInterval = 20

Detailed Description

Drag scroller object.

When attached to a QScrollArea, this will scroll the widget whenever the mouse cursor goes out of bounds.

Scrolling is timer-driven to keep a predictable and uniform scroll rate, which increases the further out of bounds the user moves the cursor.

Constructor & Destructor Documentation

DragScroller()

DragScroller ( QScrollArea *  pScrollArea )

inline

~DragScroller()

~DragScroller ( )

inline

Member Function Documentation

endDrag()

void endDrag ( )

inline

startDrag()

void startDrag ( )

inline

timeout

void timeout ( void  )

inlineslot

Field Documentation

m_nInterval

const int m_nInterval = 20

private

m_pScrollArea

QScrollArea* m_pScrollArea

private

m_pTimer

QTimer* m_pTimer

private