Overlay Class Reference

#include <overlay_base.hh>

Inherits QObject.

Inherited by DrawOverlay, MaskOverlay, NullOverlay, and PointlistOverlayBase.

Public Slots
void	OnMenuEventSlot (QAction *e)

Signals
void	SettingsChanged ()
void	InfoTextChanged (const QString &t)

Public Member Functions
	Overlay (const String &name)
void	SetName (const String &name)
String	GetName () const
virtual void	OnDraw (QPainter &pnt, DataViewerPanel *dvp, bool is_active)
virtual bool	OnMouseEvent (QMouseEvent *e, DataViewerPanel *dvp, const QPoint &lastmouse)
virtual bool	OnKeyEvent (QKeyEvent *e, DataViewerPanel *dvp)
virtual QMenu *	GetMenu ()
virtual void	OnMenuEvent (QAction *e)

Detailed Description

Definition at line 46 of file overlay_base.hh.

Constructor & Destructor Documentation

Overlay()

Overlay

(

const String &

name

)

initialization requires name

Member Function Documentation

GetMenu()

virtual QMenu* GetMenu ( )

virtual

return overlay specific pulldown menu

Reimplemented in PointlistOverlayBase, NullOverlay, MaskOverlay, and DrawOverlay.

GetName()

String GetName

(

)

const

retrieve name

InfoTextChanged

void InfoTextChanged ( const QString &  t )

signal

OnDraw()

virtual void OnDraw ( QPainter &  pnt, DataViewerPanel *  dvp, bool  is_active  )

virtual

call when redrawing is necessary

params: the drawing context, the parent data viewer, as well as a flag to indicate wether this overlay is currently active

Reimplemented in PointlistOverlayBase, PointlistOverlay, NullOverlay, and MaskOverlay.

OnKeyEvent()

virtual bool OnKeyEvent ( QKeyEvent *  e, DataViewerPanel *  dvp  )

virtual

key event handler

see comments for the mouse events

Reimplemented in NullOverlay, and MaskOverlay.

OnMenuEvent()

virtual void OnMenuEvent ( QAction *  e )

virtual

Reimplemented in PointlistOverlayBase, PointlistOverlay, NullOverlay, and DrawOverlay.

OnMenuEventSlot

void OnMenuEventSlot ( QAction *  e )

slot

OnMouseEvent()

virtual bool OnMouseEvent ( QMouseEvent *  e, DataViewerPanel *  dvp, const QPoint &  lastmouse  )

virtual

mouse event handler

if an overlay is active, it receives the mouse events. if it handles the event for itself, it should return true, otherwise false should be returned to give the data viewer a chance to handle the event for itself

Reimplemented in PointlistOverlay, NullOverlay, MaskOverlay, and DrawOverlay.

SetName()

void SetName

(

const String &

name

)

set name

SettingsChanged

void SettingsChanged ( )

signal

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

• build-dev-doc/stage/include/ost/gui/data_viewer/overlay_base.hh