C# Class LongoMatch.Drawing.Canvas

A canvas stores ICanvasObject's and draws them.

Inheritance: ICanvas

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Protected Properties

Свойство	Type	Description
tk	IDrawingToolkit
widget	IWidget

Méthodes publiques

Méthode	Description
AddObject ( ICanvasObject co ) : void	Adds a new object to the canvas and a listener to its redraw event.
Canvas ( IWidget widget ) : System
Dispose ( ) : void
Draw ( IContext context, Area area ) : void	Draws the canvas objects the specified context and area. Object are drawn in the following order: 1) Regular objects 2) Selected objects 3) Highlithed objects
RemoveObject ( ICanvasObject co ) : void	Removes and object from the canvas.

Méthodes protégées

Méthode	Description
Begin ( IContext context ) : void	Must be called before any drawing operation is performed to apply transformation, scalling and clipping.
ClearObjects ( ) : void	Removes all the objects from the canvas.
Dispose ( bool disposing ) : void
End ( ) : void	Must be called after drawing operations to restore the context
HandleRedrawEvent ( ICanvasObject co, Area area ) : void
HandleSizeChangedEvent ( ) : void
ToUserCoords ( Point p ) : Point	Converts a point to the original position removing the applied tanslation and invering the scale.

Method Details

AddObject() public méthode

Adds a new object to the canvas and a listener to its redraw event.

public AddObject ( ICanvasObject co ) : void
co	ICanvasObject	The object to add.
Résultat	void

Begin() protected méthode

Must be called before any drawing operation is performed to apply transformation, scalling and clipping.

protected Begin ( IContext context ) : void
context	IContext	Context to draw
Résultat	void

Canvas() public méthode

public Canvas ( IWidget widget ) : System
widget	IWidget
Résultat	System

ClearObjects() protected méthode

Removes all the objects from the canvas.

protected ClearObjects ( ) : void
Résultat	void

Dispose() public méthode

public Dispose ( ) : void
Résultat	void

Dispose() protected méthode

protected Dispose ( bool disposing ) : void
disposing	bool
Résultat	void

Draw() public méthode

Draws the canvas objects the specified context and area. Object are drawn in the following order: 1) Regular objects 2) Selected objects 3) Highlithed objects

public Draw ( IContext context, Area area ) : void
context	IContext	The context where the canvas is drawn.
area	LongoMatch.Core.Common.Area	The affected area.
Résultat	void

End() protected méthode

Must be called after drawing operations to restore the context

protected End ( ) : void
Résultat	void

HandleRedrawEvent() protected méthode

protected HandleRedrawEvent ( ICanvasObject co, Area area ) : void
co	ICanvasObject
area	LongoMatch.Core.Common.Area
Résultat	void

HandleSizeChangedEvent() protected méthode

protected HandleSizeChangedEvent ( ) : void
Résultat	void

RemoveObject() public méthode

Removes and object from the canvas.

public RemoveObject ( ICanvasObject co ) : void
co	ICanvasObject	The object to remove.
Résultat	void

ToUserCoords() protected méthode

Converts a point to the original position removing the applied tanslation and invering the scale.

protected ToUserCoords ( Point p ) : Point
p	Point	The point to convert.
Résultat	Point

Property Details

tk protected_oe property

protected IDrawingToolkit tk
Résultat	IDrawingToolkit

widget protected_oe property

protected IWidget widget
Résultat	IWidget