ShapeGeometry Class

[アーティクル]
07/22/2011

Represents the geometry for a shape or connector.

Inheritance Hierarchy

System.Object
  Microsoft.VisualStudio.Modeling.Diagrams.ShapeGeometry
    Microsoft.VisualStudio.Modeling.Diagrams.LinkShapeGeometry
    Microsoft.VisualStudio.Modeling.Diagrams.NodeShapeGeometry

Namespace: Microsoft.VisualStudio.Modeling.Diagrams
Assembly: Microsoft.VisualStudio.Modeling.Sdk.Diagrams.10.0 (in Microsoft.VisualStudio.Modeling.Sdk.Diagrams.10.0.dll)

Syntax

'宣言
Public MustInherit Class ShapeGeometry _
    Implements IDisposable

public abstract class ShapeGeometry : IDisposable

public ref class ShapeGeometry abstract : IDisposable

[<AbstractClass>]
type ShapeGeometry =  
    class
        interface IDisposable
    end

public abstract class ShapeGeometry implements IDisposable

The ShapeGeometry type exposes the following members.

Constructors

	Name	Description
	ShapeGeometry	Initializes a new instance of the ShapeGeometry class.

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Properties

	Name	Description
	MaximumShadowOffset	Gets the maximum offset allowed between a shape outline and the outer edge of its shadow.
	ShadowOffset	Gets the offset between the shape outline and the outer edge of the shadow.
	UninitializedPath	Gets the path around the shape geometry.

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Methods

	Name	Description
	CreateDiagramItem	Creates a shape geometry host.
	Dispose()	Releases all resources used by the current instance of the ShapeGeometry class.
	Dispose(Boolean)
	DoFoldToShape	Calculates the point where a connector crosses the outline of the shape geometry. It is used to compute where connectors should terminate.
	DoHitTest(IGeometryHost, PointD, DiagramHitTestInfo)	Determines whether a point is inside a shape.
	DoHitTest(IGeometryHost, PointD, DiagramHitTestInfo, Boolean)	Determines whether a point is inside a shape.
	DoHitTestSelection	Determines whether a point is inside the selection highlight of a shape.
	DoPaint	Draws the shape geometry, and its shadow if it has one.
	DoPaintEmphasis	Draws emphasis on the shape.
	DoPaintGeometry	Paints the boundary and background of the shape.
	DoPaintResizeFeedback	Draws the resize feedback for the shape geometry. Called repeatedly as the user moves the mouse to resize the shape.
	DoPaintSelection	Draws the selection highlighting, which typically surrounds the shape boundary.
	DoPaintShadow	Draws the shadow for the shape.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetBackgroundBrushId	Gets the ID that is assigned to the brush that paints the background of the shape geometry.
	GetExtraPenWidth	Gets the width of the outline pen that is outside the boundary of the shape.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetHitTestTolerance	Gets the tolerance around the shape geometry to use when a hit test is performed.
	GetOutlinePenId	Gets the ID that is assigned to the brush that paints the outline of the shape geometry.
	GetPath(IGeometryHost)	Gets the path around the shape geometry. Use the returned path before applying GetPath() to any other shape. Use GetPathCopy() if you want to retain a path.
	GetPath(RectangleD)	Gets the path around the shape geometry.
	GetPathCopy	Gets a copy of the path around the shape geometry. Dispose the path when you have finished with it.
	GetPerimeter	Gets the path of the perimeter around the shape, including the width of the pen that draws the boundary. Make a copy of this path if you want to retain it.
	GetPerimeterBoundingBox	Gets the bounding box around the perimeter of the shape, including the thickness of the pen that draws the boundary.
	GetSelectionBorderThickness(Graphics)	Gets the width of the border for a selection in the current view.
	GetSelectionBorderThickness(DiagramClientView)	Gets the width of the border for a selection in the specified view.
	GetSelectionLineOffset	Gets the distance between the selection and the outside of the shape geometry.
	GetSelectionLineWidth	Gets the width of the line that indicates that a shape is selected.
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	HasFilledBackground	True if this type of geometry has a filled background.
	HasOutline	True if this type of geometry has a visible border.
	HasShadow	True if this type of geometry has a shadow.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Rotate	Rotate an array of points around a specified center.
	SnapToCircle	Snaps a potential point from the bounding box around the shape geometry to the perimeter of the circle.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	Translate	Moves an array of points by a specified vector.

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Remarks

This class and its derivatives deal with operations and calculations associated with the outline of the shape. There is a subclass for each of the major kinds of shape, such as ImageShapeGeometry, CompartmentShapeGeometry, and LinkShapeGeometry. By default, your shape or connector class is associated with one of these standard geometry classes.

To override functions of ShapeGeometry:

Create your own class derived from one of the standard subclasses of ShapeGeometry. Do not add state variables to this class.
In your shape class, override the ShapeGeometry property to return an instance of your ShapeGeometry subclass.

ShapeGeometry is a lightweight class – it has no state, so that you can share an instance between all the instances of a shape class.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Change History

Date	History	Reason
June 2010	Added descriptions of class and members.	Information enhancement.

June 2010

Added descriptions of class and members.

Information enhancement.

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