C# Class Tutorial.CustomStyles.MySimpleEdgeStyle

This class is an example for a custom edge style based on EdgeStyleBase{TVisual}.

The color of the edge style depends in the selection state of the edge.

Inheritance: EdgeStyleBase

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Private Properties

Свойство	Type	Description
CreateGeometry	Geometry
CreateRenderDataCache	RenderDataCache
GetLocation	PointD
GetPath	GeneralPath
Render	void
UpdatePath	void

Méthodes publiques

Méthode	Description
MySimpleEdgeStyle ( ) : System	Initializes a new instance of the MySimpleEdgeStyle class with a custom arrow.

Méthodes protégées

Méthode	Description
CreateVisual ( IRenderContext context, IEdge edge ) : VisualGroup	Creates the visual for an edge.
IsHit ( IInputModeContext context, PointD location, IEdge edge ) : bool	Determines whether the visual representation of the edge has been hit at the given location. Overridden method to include the PathThickness and the HitTestRadius specified in the context in the calculation.
Lookup ( IEdge edge, Type type ) : object	This implementation of the look up provides a custom implementation of the ISelectionIndicatorInstaller interface that better suits to this style.
UpdateVisual ( IRenderContext context, oldVisual, IEdge edge ) : VisualGroup	Re-renders the edge using the old visual for performance reasons.

Private Methods

Méthode	Description
CreateGeometry ( GeneralPath gp ) : Geometry	Creates the geometry for the path from the given GeneralPath.
CreateRenderDataCache ( IRenderContext context, IEdge edge ) : RenderDataCache	Creates an object containing all necessary data to create an edge visual
GetLocation ( IPort port ) : PointD	In contrast to the GraphExtensions.GetLocation property of IPort, this method returns the static current location of the port. It is recommended to use this method at performance critical places that require no live view of the port location, like the GetPath method of this class.
GetPath ( IEdge edge ) : GeneralPath
Render ( IRenderContext context, IEdge edge, container, RenderDataCache cache ) : void	Creates the visual appearance of an edge
UpdatePath ( IRenderContext context, IEdge edge, container, RenderDataCache cache ) : void	Updates the edge path data as well as the arrow positions of the visuals stored in .

Method Details

CreateVisual() protected méthode

Creates the visual for an edge.

protected CreateVisual ( IRenderContext context, IEdge edge ) : VisualGroup
context	IRenderContext
edge	IEdge
Résultat	VisualGroup

IsHit() protected méthode

Determines whether the visual representation of the edge has been hit at the given location. Overridden method to include the PathThickness and the HitTestRadius specified in the context in the calculation.

protected IsHit ( IInputModeContext context, PointD location, IEdge edge ) : bool
context	IInputModeContext
location	PointD
edge	IEdge
Résultat	bool

Lookup() protected méthode

This implementation of the look up provides a custom implementation of the ISelectionIndicatorInstaller interface that better suits to this style.

protected Lookup ( IEdge edge, Type type ) : object
edge	IEdge
type	Type
Résultat	object

MySimpleEdgeStyle() public méthode

Initializes a new instance of the MySimpleEdgeStyle class with a custom arrow.

public MySimpleEdgeStyle ( ) : System
Résultat	System

UpdateVisual() protected méthode

Re-renders the edge using the old visual for performance reasons.

protected UpdateVisual ( IRenderContext context, oldVisual, IEdge edge ) : VisualGroup
context	IRenderContext
edge	IEdge
Résultat	VisualGroup