iview::IShapeObserver Class Reference

Common interface for all objects informed about shapes state changes. More...

#include <IShapeObserver.h>

Inheritance diagram for iview::IShapeObserver:

Collaboration diagram for iview::IShapeObserver:

Public Member Functions
virtual void	OnChangeShape (IShape *shapePtr)=0
	Invalidate a shape.
virtual bool	DisconnectShape (IShape *shapePtr)=0
	Disconnect shape object from view.

Detailed Description

Common interface for all objects informed about shapes state changes.

Each shape has a pointer to one IShapeObserver object.

Definition at line 24 of file IShapeObserver.h.

Member Function Documentation

DisconnectShape()

virtual bool iview::IShapeObserver::DisconnectShape ( IShape * shapePtr )

pure virtual

Disconnect shape object from view.

This shape had to be connected using ConnectShape.

Returns

true, if it was possible to disconnect this shape.

Implemented in iview::CInteractiveViewLayer, iview::CViewBase, and iview::CViewLayer.

Referenced by i2dgui::TViewExtenderCompBase< Base >::RemoveItemsFromScene().

OnChangeShape()

virtual void iview::IShapeObserver::OnChangeShape ( IShape * shapePtr )

pure virtual

Invalidate a shape.

When you call Update, all invalidated shapes will be repainted.

Returns

true, if it was possible to invalidate this shape.

Implemented in iview::CInteractiveViewLayer, iview::CViewBase, and iview::CViewLayer.

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

• iview/IShapeObserver.h