Class DrawingUtils

Inheritance

System.Object

DrawingUtils

Inherited Members

System.Object.ToString()

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

Namespace: Syncfusion.Drawing

Assembly: Syncfusion.Shared.Base.dll

Syntax

public class DrawingUtils

Constructors

DrawingUtils()

Declaration

public DrawingUtils()

Methods

AdjustForeColorBrightnessForBackColor(ref Color, Color, Single)

Adjusts the specified forecolor's brightness based on the specified backcolor and preferred contrast.

Declaration

public static void AdjustForeColorBrightnessForBackColor(ref Color foreColor, Color backColor, float prefContrastLevel)

Parameters

Type	Name	Description
System.Drawing.Color	foreColor	The forecolor to adjust.
System.Drawing.Color	backColor	The backcolor for reference.
System.Single	prefContrastLevel	Preferred contrast level.

Remarks

This method checks if the current contrast in brightness between the 2 colors is less than the specified contrast level. If so, it brightens or darkens the forecolor appropriately.

ConvertHSBToRGB(Single, Single, Single, out Single, out Single, out Single)

Converts the HSB value to RGB.

Declaration

public static void ConvertHSBToRGB(float h, float s, float v, out float r, out float g, out float b)

Parameters

Type	Name	Description
System.Single	h	Hue.
System.Single	s	Saturation.
System.Single	v	Brightness.
System.Single	r	Red.
System.Single	g	Green.
System.Single	b	Blue.

Remarks

This does not seem to yield accurate results, but very close.

DrawDesignTimeBorder(Graphics, Control)

Declaration

public static void DrawDesignTimeBorder(Graphics g, Control control)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Windows.Forms.Control	control

DrawGrayedImage(Graphics, Image, Rectangle, RectangleF)

Declaration

public static void DrawGrayedImage(Graphics g, Image image, Rectangle destRect, RectangleF srcRect)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Image	image
System.Drawing.Rectangle	destRect
System.Drawing.RectangleF	srcRect

DrawGrayedImage(Graphics, Image, Rectangle, RectangleF, Single)

Declaration

public static void DrawGrayedImage(Graphics g, Image image, Rectangle destRect, RectangleF srcRect, float transparency)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Image	image
System.Drawing.Rectangle	destRect
System.Drawing.RectangleF	srcRect
System.Single	transparency

DrawGrayedImage(Graphics, Image, Int32, Int32)

Declaration

public static void DrawGrayedImage(Graphics g, Image image, int left, int top)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Image	image
System.Int32	left
System.Int32	top

DrawGrayedImage(Graphics, Image, Int32, Int32, Single)

Declaration

public static void DrawGrayedImage(Graphics g, Image image, int left, int top, float transparency)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Image	image
System.Int32	left
System.Int32	top
System.Single	transparency

DrawImage(Graphics, Image, Single, Single, Single, Single)

Draws specified image to graphics context. If image size is less than maxWidth, maxHeight parameters, it will be drawn without any changes, otherwise - it will be scaled proportionally to those values.

Declaration

public static void DrawImage(Graphics g, Image image, float x, float y, float maxWidth, float maxHeight)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	Graphics context.
System.Drawing.Image	image	Image object which must be drawing.
System.Single	x	X coordinate of the destination location.
System.Single	y	Y coordinate of the destination location.
System.Single	maxWidth	Maximum width of the image.
System.Single	maxHeight	Maximum height of the image.

DrawImageViaImageList(Graphics, ImageList, Int32, Rectangle)

Draws an image using the ImageList, taking into account the Graphics.ClipBounds.

Declaration

public static void DrawImageViaImageList(Graphics g, ImageList il, int index, Rectangle rect)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	The Graphics object into which to draw.
System.Windows.Forms.ImageList	il	The ImageList containing the image.
System.Int32	index	The index of the image.
System.Drawing.Rectangle	rect	The rectangle into which to draw.

Remarks

This method will use ImageList_DrawEx to draw the image (to use the transparency info in the embedded images). We use the PInvoke rather than ImageList.Draw because, the Draw method uses the PaintEventArgs.ClipRectangle rather than g.ClipBounds (both can be different) and here we force the ClipBounds on the DC.

Also, you do not have to use this method if your images will never be drawn clipped (in that case just use ImageList.Draw).

DrawShadow(Graphics, Image, Int32, Int32)

Declaration

public static void DrawShadow(Graphics g, Image iconImage, int left, int top)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Image	iconImage
System.Int32	left
System.Int32	top

DrawTransparentImage(Graphics, Rectangle, Image, Single)

Declaration

protected void DrawTransparentImage(Graphics g, Rectangle rect, Image image, float transparency)

Parameters

Type	Name	Description
System.Drawing.Graphics	g
System.Drawing.Rectangle	rect
System.Drawing.Image	image
System.Single	transparency

GetRoundedRectangle(Rectangle, Int32)

Declaration

public static GraphicsPath GetRoundedRectangle(Rectangle rect, int radius)

Parameters

Type	Name	Description
System.Drawing.Rectangle	rect
System.Int32	radius

Returns

Type	Description
System.Drawing.Drawing2D.GraphicsPath

NCPaintHelper(Control, INonClientPaintingSupport, ref Message)

Call this method to help you prepare for non client painting. This method will in turn call your INonClientPaintingSupport.NonClientPaint implementation.

Declaration

public static IntPtr NCPaintHelper(Control control, INonClientPaintingSupport ncPaintDelegate, ref Message m)

Parameters

Type	Name	Description
System.Windows.Forms.Control	control	The control in which we will be drawing.
INonClientPaintingSupport	ncPaintDelegate	The INonClientPaintingSupport implementation to which we will delegate the final non client drawing.
System.Windows.Forms.Message	m	The WM_NCPAINT message.

Returns

Type	Description
System.IntPtr

PaintButtonGradient(Graphics, Rectangle, Color, Color, Color, Color, Color, Color)

Paints a rectangular area with the given colors in Office2007 style.

Declaration

public static void PaintButtonGradient(Graphics g, Rectangle rect, Color clrBorder, Color topFirst, Color topLast, Color bottomFirst, Color bottomLast, Color bottomLine)

Parameters

Type	Name	Description
System.Drawing.Graphics	g	A System.Drawing.Graphics object.
System.Drawing.Rectangle	rect	A System.Drawing.Rectangle object that represents the drawing area.
System.Drawing.Color	clrBorder	The border color.
System.Drawing.Color	topFirst	The top gradient start color.
System.Drawing.Color	topLast	The top gradient end color.
System.Drawing.Color	bottomFirst	The bottom gradient start color.
System.Drawing.Color	bottomLast	The bottom gradient end color.
System.Drawing.Color	bottomLine	The bottom line color.