Taxonomy Categories:
Member Functions:
Interface Category:
API.
Inherits From:
TCanvasPolylineMulticlickInteractor
Inherited By:
None.
Purpose:
A tool interactor that manages a multiclick interaction and uses the resulting points as vertices to create a new canvas polygon. Finally, the interactor adopts the new polygon into a canvas representation before executing a TAdoptCanvasGraphicCmd.
Instantiation:
Allocate on the heap or the stack.
Deriving Classes:
Intended to be used as is but can also be derived.
Concurrency:
Not multithread safe.
Resource Use:
No special requirements.
Other Considerations:
The interaction must result in at least three points to create a new canvas polyline. The polygon is automatically closed, for example, the last multiclick point is connected to the first to produce a closed polygon. If the last multiclick point is within five pixels of the first point, it is dropped and the prior point is connected to the first point.
TCanvasPolygonCreationInteractor (MCanvasSelection * adoptTarget, MToolHandler *)
Interface Category:
API.
Purpose:
Creates a new object.
Calling Context:
Created by a TCanvasLineCreationTool.
Parameters:
Return Value:
None.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
virtual ~ TCanvasPolygonCreationInteractor ()
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 void EndInteraction ()
Interface Category:
API.
Purpose:
Processes vertices and creates a new canvas polyline when the multiclick interaction is complete.
Calling Context:
Called by the Graphics Editing framework.
Parameters:
Return Value:
None.
Exceptions:
Throws no exceptions, passes all exceptions through.
Concurrency:
Not multithread safe.
Other Considerations:
None.
Click the icon to mail questions or corrections about this material to Taligent personnel.
Copyright©1995 Taligent,Inc. All rights reserved.