TBWidgetListener listens to some callbacks from TBWidget. More...

#include <tb_widgets_listener.h>

Inheritance diagram for tb::TBWidgetListener:

Public Member Functions
virtual void	OnWidgetDelete (TBWidget *)
	Called when widget is being deleted (in its destructor, so virtual functions are already gone). More...

virtual bool	OnWidgetDying (TBWidget *)
	This is called when the widget request to be deleted. More...

virtual void	OnWidgetAdded (TBWidget , TBWidget )
	Called when the child has been added to parent, after its parents OnChildAdded. More...

virtual void	OnWidgetRemove (TBWidget , TBWidget )
	Called when the child is about to be removed from parent, after its parents OnChildRemove. More...

virtual void	OnWidgetFocusChanged (TBWidget *, bool)
	Called when widget focus has changed on a widget. More...

virtual bool	OnWidgetInvokeEvent (TBWidget *, const TBWidgetEvent &)
	Called when a event is about to be invoked on a widget. More...

Public Member Functions inherited from tb::TBLinkOf< TBWidgetListener >
TBWidgetListener *	GetPrev () const

TBWidgetListener *	GetNext () const

Public Member Functions inherited from tb::TBLink
bool	IsInList () const
	Return true if the link is currently added to a list. More...

Public Member Functions inherited from tb::TBLinkOf< TBWidgetListenerGlobalLink >
TBWidgetListenerGlobalLink *	GetPrev () const

TBWidgetListenerGlobalLink *	GetNext () const

Static Public Member Functions
static void	AddGlobalListener (TBWidgetListener *listener)
	Add a listener to all widgets. More...

static void	RemoveGlobalListener (TBWidgetListener *listener)

Friends
class	TBWidget

Additional Inherited Members
Public Attributes inherited from tb::TBLink
TBLink *	prev

TBLink *	next

TBLinkList *	linklist

Detailed Description

TBWidgetListener listens to some callbacks from TBWidget.

It may either listen to all widgets globally, or one specific widget.

Local listeners (added with TBWidget:AddListener) will be invoked before global listeners (added with TBWidgetListener::AddGlobalListener).

Member Function Documentation

void tb::TBWidgetListener::AddGlobalListener ( TBWidgetListener * listener )

static

Add a listener to all widgets.

virtual void tb::TBWidgetListener::OnWidgetAdded	(	TBWidget *	,
		TBWidget *
	)

inlinevirtual

Called when the child has been added to parent, after its parents OnChildAdded.

Local listeners are invoked on the parent widget.

virtual void tb::TBWidgetListener::OnWidgetDelete ( TBWidget * )

inlinevirtual

Called when widget is being deleted (in its destructor, so virtual functions are already gone).

virtual bool tb::TBWidgetListener::OnWidgetDying ( TBWidget * )

inlinevirtual

This is called when the widget request to be deleted.

Return true if you want the widget to not die immediately, f.ex. to fade it out before it is deleted. If you return true, it's up to you to finally remove it from its parent delete it.

Remember that the widget may still be deleted prematurely for many other reasons (f.ex if its parent is deleted or several listeners respond true and take on the task to delete it at some point). You can use TBWidgetSafePointer to safely handle that.

virtual void tb::TBWidgetListener::OnWidgetFocusChanged	(	TBWidget *	,
		bool
	)

inlinevirtual

Called when widget focus has changed on a widget.

virtual bool tb::TBWidgetListener::OnWidgetInvokeEvent	(	TBWidget *	,
		const TBWidgetEvent &
	)

inlinevirtual

Called when a event is about to be invoked on a widget.

This make it possible to intercept events before they are handled, and block it (by returning true). Note, if returning true, other global listeners will still also be notified.

virtual void tb::TBWidgetListener::OnWidgetRemove	(	TBWidget *	,
		TBWidget *
	)

inlinevirtual

Called when the child is about to be removed from parent, after its parents OnChildRemove.

Local listeners are invoked on the parent widget.

The documentation for this class was generated from the following files:

/ms/mdata2/tesch/home/src/turbobadger/src/tb/tb_widgets_listener.h
/ms/mdata2/tesch/home/src/turbobadger/src/tb/tb_widgets_listener.cpp

Public Member Functions

Static Public Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation