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SparkRenderer

Class

Provides the base renderer for spark areas, retaining the drawing surface and exposing common graphics helpers.

Definition

Namespace:Telerik.WinControls.UI

Assembly:Telerik.WinControls.UI.dll

Syntax:

public class SparkRenderer : ISparkRenderer

Inheritance: objectSparkRenderer

Derived Classes: SparkCartesianRenderer

Implements: ISparkRenderer

Constructors

SparkRenderer(SparkArea)

Initializes a new instance of the SparkRenderer class.

public SparkRenderer(SparkArea area)

Parameters:areaSparkArea

The area.

Properties

Graphics

Gets the graphics object.

public Graphics Graphics { get; }

Property Value:

The graphics.

Surface

object

Gets or sets the surface.

public object Surface { get; }

Property Value:

The surface.

Implements: ISparkRenderer.Surface

Methods

Draw(object)

Draws the specified context.

public virtual void Draw(object context)

Parameters:contextobject

The context.

Implements: ISparkRenderer.Draw(object)

GetDistanceBetweenPoints(PointF, PointF)

Gets the distance between points.

public float GetDistanceBetweenPoints(PointF start, PointF end)

Parameters:startPointF

The start.

endPointF

The end.

Returns:

float

HitTest(int, int)

Returns the DataPoint that hits the passed x,y coordinates.

public virtual SparkDataPoint HitTest(int x, int y)

Parameters:xint

The x.

yint

The y.

Returns:

SparkDataPoint

Implements: ISparkRenderer.HitTest(int, int)

Initialize()

Initializes the renderer.

protected virtual void Initialize()

Invalidate(object)

Invalidates the specified model.

public virtual void Invalidate(object model)

Parameters:modelobject

The model.

Implements: ISparkRenderer.Invalidate(object)

MeasureText(string, object)

Measures the text.

public virtual RadSize MeasureText(string text, object context)

Parameters:textstring

The text.

contextobject

The context.

Returns:

RadSize

Implements: ISparkRenderer.MeasureText(string, object)

ToPoint(RadPoint)

Returns Point for the gives RadPoint.

public static Point ToPoint(RadPoint point)

Parameters:pointRadPoint

The point.

Returns:

Point

ToPointF(RadPoint)

Returns PointF for the gives RadPoint.

public static PointF ToPointF(RadPoint point)

Parameters:pointRadPoint

The point.

Returns:

PointF

ToRectangle(RadRect)

Converts a RadRect to an integer rectangle by rounding each coordinate and dimension away from zero at midpoint values.

public static Rectangle ToRectangle(RadRect rect)

Parameters:rectRadRect

The rectangle to convert.

Returns:

Rectangle

A Rectangle containing the rounded coordinates and dimensions.

ToRectangleF(RadRect)

Converts a RadRect to a floating-point rectangle without integer rounding; each value is cast to float.

public static RectangleF ToRectangleF(RadRect rect)

Parameters:rectRadRect

The rectangle to convert.

Returns:

RectangleF

A RectangleF containing the coordinates and dimensions converted to single-precision values.

ToSize(RadSize)

Returns Size for the gives RadSize.

public static Size ToSize(RadSize size)

Parameters:sizeRadSize

The size.

Returns:

Size

ToSizeF(RadSize)

Returns SizeF for the gives RadSize.

public static SizeF ToSizeF(RadSize size)

Parameters:sizeRadSize

The size.

Returns:

SizeF