An interface for objects that render a visual representation of a selection decoration of an item in the model displayed in a canvas.
Implements
- IIObjectRenderer<TRenderTag>
Remarks
This interface is a tagging subinterface of IObjectRenderer<T>. This interface is used for lookup operations.
Type Parameters
TRenderTag
See Also
Developer's Guide
API
- SelectionIndicatorManager, IHighlightRenderer
Members
Show:
Methods
Returns an implementation of IBoundsProvider that can determine the visible bounds of the rendering of the render tag.
Returns an implementation of IBoundsProvider that can determine the visible bounds of the rendering of the render tag.
This method may always return the same instance. By contract, clients will not cache instances returned, but will always call this method before the methods on the instance will be called. This contract enables the use of the flyweight design pattern. Implementations of this class can always return the same instance and reconfigure this instance upon each call to this method.
abstract
Parameters
- renderTag: TRenderTag
- the render tag to query the bounds for
Return Value
- IBoundsProvider
- An implementation of IBoundsProvider to determine the bounds of the visualization.
Defined in
IObjectRenderer.getBoundsProviderReturns an implementation of IHitTestable that can determine whether the rendering of the render tag has been hit at a given coordinate.
Returns an implementation of IHitTestable that can determine whether the rendering of the render tag has been hit at a given coordinate.
This method may always return the same instance. By contract, clients will not cache instances returned, but will always call this method before the methods on the instance will be called. This contract enables the use of the flyweight design pattern. Implementations of this class can always return the same instance and reconfigure this instance upon each call to this method.
abstract
Parameters
- renderTag: TRenderTag
- the render tag to do the hit testing for
Return Value
- IHitTestable
- An implementation of IHitTestable to determine visibility.
Defined in
IObjectRenderer.getHitTestableReturns an implementation of IVisibilityTestable that can determine if the rendering of the render tag would be visible in a given context.
Returns an implementation of IVisibilityTestable that can determine if the rendering of the render tag would be visible in a given context.
This method may always return the same instance. By contract clients will not cache instances returned but will always call this method before the methods on the instance will be called. This contract enables the use of the flyweight design pattern. Implementations of this class can always return the same instance and reconfigure this instance upon each call to this method.
abstract
Parameters
- renderTag: TRenderTag
- the render tag to query visibility for
Return Value
- IVisibilityTestable
- An implementation of IVisibilityTestable to determine visibility.
Defined in
IObjectRenderer.getVisibilityTestableReturns an implementation of IVisualCreator that will create the Visual tree for the render tag.
Returns an implementation of IVisualCreator that will create the Visual tree for the render tag.
This method may always return the same instance. By contract, clients will not cache instances returned, but will always call this method before the methods on the instance will be called. This contract enables the use of the flyweight design pattern. Implementations of this class can always return the same instance and reconfigure this instance upon each call to this method.
abstract
Parameters
- renderTag: TRenderTag
- the render tag to create a Visual for
Return Value
- IVisualCreator
- An implementation of IVisualCreator to create or update the visualization.
See Also
Developer's Guide