Taxonomy Categories:
Member Functions:
Interface Category:
API.
Inherits From:
TCanvasMulticlickInteractor
Inherited By:
TCanvasPolygonCreationInteractor
TCanvasPolylineCreationInteractor
Purpose:
A base class for multiclick interactors that draw a polyline through all of the multiclick points during interaction.
Instantiation:
Allocate on the heap or the stack.
Deriving Classes:
Abstract base class; must be derived.
Typically a derived class overrides EndInteraction to implement the execution of a command at the end of the drag.
Concurrency:
Not multithread safe.
Resource Use:
No special requirements.
TCanvasPolylineMulticlickInteractor (MToolHandler *)
Interface Category:
API.
Purpose:
Constructor.
Calling Context:
Called by constructors of derived classes.
Parameters:
Return Value:
None.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
virtual ~ TCanvasPolylineMulticlickInteractor ()
Interface Category:
API.
Purpose:
Destructor.
Calling Context:
Called to destroy an object.
Parameters:
Return Value:
None.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
virtual bool MouseMoved (TMouseMovedEvent &)
Interface Category:
API.
Purpose:
Handles the mouse-moved event in the context of polyline multiclick interaction.
Calling Context:
Called by the Mouse Input framework. Clients do not call this function. Derived classes must call the base class implementation.
Parameters:
Return Value:
Returns true because the mouse-moved event is always handled.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
virtual void DrawFeedback ()
Interface Category:
API.
Purpose:
Draws feedback of a polyline consisting of all multiclick points thus far and ending with the current mouse location that has not been recorded.
Calling Context:
Called by TCanvasMulticlickInteractor mouse event handling functions.
Parameters:
Return Value:
None.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
virtual bool MouseDown (TMouseDownEvent &)
Interface Category:
API.
Purpose:
Handles the mouse-down event in the context of polyline multiclick interaction.
Calling Context:
Called by the Mouse Input framework. Clients do not call this function. Derived classes must call the base class implementation.
Parameters:
Return Value:
Returns true because the mouse-down event is always handled.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
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