Documentation

Interface IDrawingService

The service handling the drawing of geometry on the surface.

Namespace: Telerik.Windows.Diagrams.Core
Assembly: Telerik.WinControls.RadDiagram.dll

Syntax

public interface IDrawingService
Remarks

Note that this service can be customized and plugged into the ServiceLocator.

Properties

ActiveShape

Gets the active shape.

Declaration
IGeometryShape ActiveShape { get; }
Property Value
IGeometryShape

AnchorPoints

Gets the anchor points.

Declaration
IEnumerable<Point> AnchorPoints { get; }
Property Value
System.Collections.Generic.IEnumerable<Point>

ControlPoints

Gets the control points.

Declaration
IEnumerable<Point> ControlPoints { get; }
Property Value
System.Collections.Generic.IEnumerable<Point>

IsDrawing

Gets a value indicating whether this instance is drawing.

Declaration
bool IsDrawing { get; }
Property Value
System.Boolean

Methods

ClearPoints()

Clears the points.

Declaration
void ClearPoints()

CompleteDraw()

Completes the draw.

Declaration
void CompleteDraw()

CreateDrawCommand(IGeometryShape, DrawingState, DrawingState, Boolean, Boolean, DrawingShapeInfo)

Creates the DrawCommand that sets the new state of the Shape or reverts the old state.

Declaration
DrawCommand CreateDrawCommand(IGeometryShape shape, DrawingState oldState, DrawingState newState, bool isComplete, bool isUndoable, DrawingShapeInfo shapeInfo)
Parameters
IGeometryShape shape

DrawingState oldState

DrawingState newState

System.Boolean isComplete

System.Boolean isUndoable

DrawingShapeInfo shapeInfo

Returns
DrawCommand

CreateHandlesGeometry(Point, Point, FillRule)

Create geometry for the Path Handles in Path Tool.

Declaration
Geometry CreateHandlesGeometry(Point startPoint, Point endPoint, FillRule fillRule)
Parameters
Point startPoint

Point endPoint

FillRule fillRule

Returns
Geometry

CreateShapeGeometry(IEnumerable<DrawingToolSegment>, DrawingShapeInfo)

Creates Geometry for a shape from a given DrawingToolSegments.

Declaration
Geometry CreateShapeGeometry(IEnumerable<DrawingToolSegment> segments, DrawingShapeInfo shapeInfo)
Parameters
System.Collections.Generic.IEnumerable<DrawingToolSegment> segments

DrawingShapeInfo shapeInfo

Returns
Geometry

DrawPoints(Nullable<Point>, Nullable<Point>, Boolean)

Draws the points.

Declaration
bool DrawPoints(Point? anchorPoint, Point? controlPoint, bool isUndoable = false)
Parameters
System.Nullable<Point> anchorPoint

The anchor point.
System.Nullable<Point> controlPoint

The control point.
System.Boolean isUndoable

The is undoable.
Returns
System.Boolean

InitializeDraw(IGeometryShape, String)

Initializes draw action.

Declaration
void InitializeDraw(IGeometryShape activeShape, string toolName)
Parameters
IGeometryShape activeShape

The active shape.
System.String toolName

The name of the current tool.

RemoveLastAnchorPoint()

Removes the last anchor point.

Declaration
void RemoveLastAnchorPoint()

RemoveLastControlPoint()

Removes the last control point.

Declaration
void RemoveLastControlPoint()

SetState(IGeometryShape, IEnumerable<Point>, IEnumerable<Point>)

Sets the state.

Declaration
void SetState(IGeometryShape shape, IEnumerable<Point> anchorPoints, IEnumerable<Point> controlPoints)
Parameters
IGeometryShape shape

The shape.
System.Collections.Generic.IEnumerable<Point> anchorPoints

The anchor points.
System.Collections.Generic.IEnumerable<Point> controlPoints

The control points.

StartDraw()

Starts the draw.

Declaration
void StartDraw()

Events

Drawing

Occurs when drawing.

Declaration
event EventHandler<DrawingEventArgs> Drawing
Event Type
System.EventHandler<DrawingEventArgs>

Extension Methods