Class GraphicUtils

Windows GDI+ graphics utilities for the report engine: DPI scaling, grid drawing, text measurement, font-style conversions, metafile/bitmap rendering and image codec, scaling and format helpers.

Inheritance

object

GraphicUtils

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Namespace: Reportman.Drawing.Windows

Assembly: Reportman.Drawing.Windows.dll

Syntax

public class GraphicUtils

Constructors

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GraphicUtils()

Declaration

public GraphicUtils()

Fields

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DefaultDPI

Declaration

public static int DefaultDPI

Field Value

Type	Description
int

Properties

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DPIScale

Declaration

public static float DPIScale { get; }

Property Value

Type	Description
float

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DPIScaleX

Declaration

public static float DPIScaleX { get; }

Property Value

Type	Description
float

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DPIScaleY

Declaration

public static float DPIScaleY { get; }

Property Value

Type	Description
float

Methods

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ConvertToBitonal(Bitmap, int)

Declaration

public static Bitmap ConvertToBitonal(Bitmap original, int threshold)

Parameters

Type	Name	Description
Bitmap	original
int	threshold

Returns

Type	Description
Bitmap

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CreateWindowsMetafile(int, int)

Declaration

public static Metafile CreateWindowsMetafile(int Width, int Height)

Parameters

Type	Name	Description
int	Width
int	Height

Returns

Type	Description
Metafile

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DrawGrid(Graphics, int, int, int, int, Color, bool, int, int, double)

Draw a grid given a distance in twips

Declaration

public static void DrawGrid(Graphics gr, int XWidth, int XHeight, int PixelsWidth, int PixelsHeight, Color GridColor, bool Lines, int XOffset, int YOffset, double Scale)

Parameters

Type	Name	Description
Graphics	gr	Destination
int	XWidth	Width in twips (1440 twips=1 inch)
int	XHeight	Height in twips
int	PixelsWidth	Width in pixels
int	PixelsHeight	Height in pixels
Color	GridColor	Color of the points or lines drawn
bool	Lines	Set to true to draw lines instead of points
int	XOffset	Horizontal offset
int	YOffset	Vertical offset
double	Scale	Scale the grid, set to 1.0 to draw in real size

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ExifRotate(Image)

Declaration

public static bool ExifRotate(Image img)

Parameters

Type	Name	Description
Image	img

Returns

Type	Description
bool

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FontStyleFromInteger(int)

Create a FontStyle from integer

Declaration

public static FontStyle FontStyleFromInteger(int intfontstyle)

Parameters

Type	Name	Description
int	intfontstyle

Returns

Type	Description
FontStyle

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GetAvgFontSizeTwips(string, float, FontStyle)

Declaration

public static Size GetAvgFontSizeTwips(string FontFamily, float FontSize, FontStyle FStyle)

Parameters

Type	Name	Description
string	FontFamily
float	FontSize
FontStyle	FStyle

Returns

Type	Description
Size

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GetBitmapGrid(int, int, int, int, Color, Color, bool, double)

Obtain a bitmap to perform fast drawing of a grid, so consecutive calls with similar parameters will execute faster. The implementation uses a shared bitmap.

Declaration

public static Bitmap GetBitmapGrid(int Width, int Height, int GWidth, int GHeight, Color GColor, Color BackColor, bool Lines, double Scale)

Parameters

Type	Name	Description
int	Width
int	Height
int	GWidth
int	GHeight
Color	GColor
Color	BackColor
bool	Lines
double	Scale

Returns

Type	Description
Bitmap

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GetEncoderInfo(string)

Declaration

public static ImageCodecInfo GetEncoderInfo(string mimeType)

Parameters

Type	Name	Description
string	mimeType

Returns

Type	Description
ImageCodecInfo

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GetImageCodec(string)

Retuns a codec with the mime type or null if not found

Declaration

public static ImageCodecInfo GetImageCodec(string mimeType)

Parameters

Type	Name	Description
string	mimeType	Codec string, example "image/jpeg"

Returns

Type	Description
ImageCodecInfo

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GetImageCodecFromExtension(string)

Retuns a codec with the mime type or null if not found

Declaration

public static ImageCodecInfo GetImageCodecFromExtension(string extension)

Parameters

Type	Name	Description
string	extension

Returns

Type	Description
ImageCodecInfo

View Source

GetImageCodecs()

Obtain a list of available image codecs

Declaration

public static Strings GetImageCodecs()

Returns

Type	Description
Strings	A list, string collection of image codecs

View Source

GetImageGrid(int, int, int, int, Color, Color, bool, double)

Obtain a Image (Metafile or Bitmap) to perform fast drawing of a grid, so consecutive calls with similar parameters will execute faster. The implementation uses a shared bitmap or metafile.

Declaration

public static Image GetImageGrid(int Width, int Height, int GWidth, int GHeight, Color GColor, Color BackColor, bool Lines, double Scale)

Parameters

Type	Name	Description
int	Width
int	Height
int	GWidth
int	GHeight
Color	GColor
Color	BackColor
bool	Lines
double	Scale

Returns

Type	Description
Image

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GetInvertedBlackWhite(Color)

Declaration

public static Color GetInvertedBlackWhite(Color c)

Parameters

Type	Name	Description
Color	c

Returns

Type	Description
Color

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GetMetafileGrid(int, int, int, int, Color, Color, bool, double)

Obtain a metafile to perform fast drawing of a grid, so consecutive calls with similar parameters will execute faster. The implementation uses a shared metafile.

Declaration

public static Metafile GetMetafileGrid(int Width, int Height, int GWidth, int GHeight, Color GColor, Color BackColor, bool Lines, double Scale)

Parameters

Type	Name	Description
int	Width
int	Height
int	GWidth
int	GHeight
Color	GColor
Color	BackColor
bool	Lines
double	Scale

Returns

Type	Description
Metafile

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GetMimeType(Image)

Declaration

public static string GetMimeType(Image i)

Parameters

Type	Name	Description
Image	i

Returns

Type	Description
string

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GetRotateFlipTypeByExifOrientationData(int)

Declaration

public static RotateFlipType GetRotateFlipTypeByExifOrientationData(int orientation)

Parameters

Type	Name	Description
int	orientation

Returns

Type	Description
RotateFlipType

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GetRoundedLine(PointF[], float)

Declaration

public static GraphicsPath GetRoundedLine(PointF[] points, float cornerRadius)

Parameters

Type	Name	Description
PointF[]	points
float	cornerRadius

Returns

Type	Description
GraphicsPath

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ImageFromStream(Stream)

Returns a Image from stream. Do rotation for jpeg camera images

Declaration

public static Image ImageFromStream(Stream mstream)

Parameters

Type	Name	Description
Stream	mstream	Memory stream to read Image from

Returns

Type	Description
Image	Image object

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ImageToByteArray(Image)

Declaration

public static byte[] ImageToByteArray(Image nimage)

Parameters

Type	Name	Description
Image	nimage

Returns

Type	Description
byte[]

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ImageToStream(Image)

Declaration

public static MemoryStream ImageToStream(Image nimage)

Parameters

Type	Name	Description
Image	nimage

Returns

Type	Description
MemoryStream

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IntegerFromFontStyle(FontStyle)

Declaration

public static int IntegerFromFontStyle(FontStyle astyle)

Parameters

Type	Name	Description
FontStyle	astyle

Returns

Type	Description
int

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IntegerFromStringFontStyle(string)

Declaration

public static int IntegerFromStringFontStyle(string sfontstyle)

Parameters

Type	Name	Description
string	sfontstyle

Returns

Type	Description
int

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LengthenLine(PointF, ref PointF, float)

Declaration

public static void LengthenLine(PointF startPoint, ref PointF endPoint, float pixelCount)

Parameters

Type	Name	Description
PointF	startPoint
PointF	endPoint
float	pixelCount

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MeasureDisplayStringWidth(Graphics, string, Font)

Calculates the with in current graphics units of a text

Declaration

public static double MeasureDisplayStringWidth(Graphics graphics, string text, Font font)

Parameters

Type	Name	Description
Graphics	graphics	Graphics object where the measurement will be done
string	text	Text to be measured
Font	font	Font used for the measurement

Returns

Type	Description
double	Width in graphic units of the measured text

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RemapImageTransparentColor(Image, Color)

Declaration

public static Image RemapImageTransparentColor(Image img, Color OldColor)

Parameters

Type	Name	Description
Image	img
Color	OldColor

Returns

Type	Description
Image

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ScaleBitmapDPI(Image)

Declaration

public static Image ScaleBitmapDPI(Image image)

Parameters

Type	Name	Description
Image	image

Returns

Type	Description
Image

View Source

ScaleToDPI(int)

Declaration

public static int ScaleToDPI(int pixels)

Parameters

Type	Name	Description
int	pixels

Returns

Type	Description
int

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ScaledBitmapRatio(Image, int, int, bool)

Scale bitmap to a maximum of width and height

Declaration

public static Image ScaledBitmapRatio(Image image, int width, int height, bool highquality)

Parameters

Type	Name	Description
Image	image
int	width
int	height
bool	highquality

Returns

Type	Description
Image

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ScaledBitmapRatio(Image, int, int, bool, bool)

Declaration

public static Image ScaledBitmapRatio(Image image, int width, int height, bool highquality, bool allowexpand)

Parameters

Type	Name	Description
Image	image
int	width
int	height
bool	highquality
bool	allowexpand

Returns

Type	Description
Image

View Source

ScreenDPI()

Declaration

public static int ScreenDPI()

Returns

Type	Description
int

View Source

ScreenDPIX()

Declaration

public static int ScreenDPIX()

Returns

Type	Description
int

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ScreenDPIY()

Declaration

public static int ScreenDPIY()

Returns

Type	Description
int

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SimpleThresholdBW(byte[], int, int, int, int, int)

Declaration

public static byte[] SimpleThresholdBW(byte[] sourceBuffer, int width, int height, int srcStride, int dstStride, int threshold)

Parameters

Type	Name	Description
byte[]	sourceBuffer
int	width
int	height
int	srcStride
int	dstStride
int	threshold

Returns

Type	Description
byte[]

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StringFontStyleFromInteger(int)

Declaration

public static string StringFontStyleFromInteger(int intstyle)

Parameters

Type	Name	Description
int	intstyle

Returns

Type	Description
string

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StringFromFontStyle(FontStyle)

Declaration

public static string StringFromFontStyle(FontStyle astyle)

Parameters

Type	Name	Description
FontStyle	astyle

Returns

Type	Description
string

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TextToBitmap(int, string, string, float)

Converts a text to his representation in bitmap form

Declaration

public static Bitmap TextToBitmap(int width, string text, string fontfamily, float fontsize)

Parameters

Type	Name	Description
int	width	Witdh of the resulting bitmap
string	text	Text to be printed into the bitmap
string	fontfamily	Font family
float	fontsize	Font size

Returns

Type	Description
Bitmap	Returns a bitmap with the text drawn on it

View Source

WriteWindowsMetaFile(Metafile, Stream, float)

Write a Windows Metafile into a stream

Declaration

public static void WriteWindowsMetaFile(Metafile metaf, Stream destination, float Scale)

Parameters

Type	Name	Description
Metafile	metaf	Metafile to write
Stream	destination	Stream destination
float	Scale	Scale of the Windows Metafile

View Source

WriteWindowsMetaFileCodec(Metafile, Stream, float, string, out string)

Convert a windows metafile to a image format saved into a stream

Declaration

public static void WriteWindowsMetaFileCodec(Metafile metaf, Stream destination, float Scale, string codecstring, out string mimetype)

Parameters

Type	Name	Description
Metafile	metaf	Windows Metafile to be converted
Stream	destination	Destination stream
float	Scale	Scale of the metafile
string	codecstring	Codec to be used you can obtain a list by using GetImageCodecs
string	mimetype	Mimetype of the selected codec