#include <null_overlay.hh>
Inherits ost::img::gui::Overlay.
Public Member Functions | |
NullOverlay () | |
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 void | OnMenuEvent (QAction *e) |
virtual QMenu * | GetMenu () |
Definition at line 30 of file null_overlay.hh.
NullOverlay | ( | ) |
virtual QMenu* GetMenu | ( | ) | [virtual] |
return overlay specific pulldown menu
Reimplemented from Overlay.
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 from Overlay.
virtual bool OnKeyEvent | ( | QKeyEvent * | e, | |
DataViewerPanel * | dvp | |||
) | [virtual] |
virtual void OnMenuEvent | ( | QAction * | e | ) | [virtual] |
Reimplemented from Overlay.
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 from Overlay.