The base class of all scene operations. More...

#include <operations.h>

Inheritance diagram for SceneOperation:

Collaboration diagram for SceneOperation:

Signals
void	finished ()
	Emitted when the operation has finished, either successfully or not.

Public Member Functions
	SceneOperation (SheetScene *scene)
	Construct a scene operation in the specified scene.

virtual void	mousePressEvent (QGraphicsSceneMouseEvent *event)
	Process a mousePressEvent. The base implementation does nothing.

virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *event)
	Process a mouseMoveEvent. The base implementation does nothing.

virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)
	Process a mouseReleaseEvent. The base implementation does nothing.

virtual void	keyPressEvent (QKeyEvent *event)
	Process a keyPressEvent. The base implementation does nothing.

virtual void	cancel ()
	Cancel the operation. More...

Detailed Description

The base class of all scene operations.

An operation is any multi-step process that relies on mouse/keyboard input. An example of an operation is inserting a line.

Each operation is associated with a scene.

Member Function Documentation

virtual void SceneOperation::cancel ( )

virtual

Cancel the operation.

This will delete any dangling objects and remove them from the scene. The finished signal will be emitted.

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