ScrollBar::Listener Class Reference

A class for receiving events from a ScrollBar. More...

Inheritance diagram for ScrollBar::Listener:

Public Member Functions
virtual	~Listener ()=default
	Destructor.
virtual void	scrollBarMoved (ScrollBar *scrollBarThatHasMoved, double newRangeStart)=0
	Called when a ScrollBar is moved.

Detailed Description

A class for receiving events from a ScrollBar.

You can register a ScrollBar::Listener with a ScrollBar using the ScrollBar::addListener() method, and it will be called when the bar's position changes.

See also

ScrollBar::addListener, ScrollBar::removeListener

Constructor & Destructor Documentation

~Listener()

virtual ScrollBar::Listener::~Listener ( )

virtualdefault

Destructor.

Member Function Documentation

scrollBarMoved()

virtual void ScrollBar::Listener::scrollBarMoved ( ScrollBar * scrollBarThatHasMoved, double newRangeStart )

pure virtual

Called when a ScrollBar is moved.

Parameters

scrollBarThatHasMoved	the bar that has moved
newRangeStart	the new range start of this bar

Implemented in Viewport.

References ScrollBar::ScrollBar().