C# Class Xwt.Backends.ImageBackendHandler

Inheritance: Xwt.Backends.DisposableResourceBackendHandler

Mostrar archivo Open project: antmicro/xwt Class Usage Examples

Public Methods

Method	Description
ConvertToBitmap ( object handle, double width, double height, double scaleFactor, ImageFormat format ) : object	Converts an image to a bitmap of the specified size
CopyBitmap ( object handle ) : object
CopyBitmapArea ( object srcHandle, int srcX, int srcY, int width, int height, object destHandle, int destX, int destY ) : void
CreateBackend ( ) : object
CreateCustomDrawn ( ImageDrawCallback drawCallback ) : object	Creates an image that is custom drawn
CreateMultiResolutionImage ( IEnumerable	Creates an image with multiple representations in different sizes The first image of the list if the reference image, the one with scale factor = 1
CreateMultiSizeIcon ( IEnumerable
CropBitmap ( object handle, int srcX, int srcY, int width, int height ) : object
GetBitmapPixel ( object handle, int x, int y ) : Color
GetSize ( object handle ) : Size	Gets the size of an image This method should return a size of (0,0) if the image doesn't have an intrinsic size. For example: if the image is a vecor image, or if is an icon composed of images of different sizes.
GetStockIcon ( string id ) : Image
HasMultipleSizes ( object handle ) : bool	Returns True if the image has multiple representations of different sizes. For example, it would return True for a .ico file which as several representations of the image in different sizes
IsBitmap ( object handle ) : bool	Determines whether this instance is a bitmap
LoadFromFile ( string file ) : object
LoadFromResource ( Assembly asm, string name ) : object
LoadFromStream ( Stream stream ) : object
SaveToStream ( object backend, System stream, ImageFileType fileType ) : void
SetBitmapPixel ( object handle, int x, int y, Color color ) : void

Method Details

ConvertToBitmap() public abstract method

Converts an image to a bitmap of the specified size

public abstract ConvertToBitmap ( object handle, double width, double height, double scaleFactor, ImageFormat format ) : object
handle	object	Image handle.
width	double	Width.
height	double	Height.
scaleFactor	double
format	ImageFormat
return	object

CopyBitmap() public abstract method

public abstract CopyBitmap ( object handle ) : object
handle	object
return	object

CopyBitmapArea() public abstract method

public abstract CopyBitmapArea ( object srcHandle, int srcX, int srcY, int width, int height, object destHandle, int destX, int destY ) : void
srcHandle	object
srcX	int
srcY	int
width	int
height	int
destHandle	object
destX	int
destY	int
return	void

CreateBackend() public method

public CreateBackend ( ) : object
return	object

CreateCustomDrawn() public method

Creates an image that is custom drawn

public CreateCustomDrawn ( ImageDrawCallback drawCallback ) : object
drawCallback	ImageDrawCallback	The callback to be used to draw the image. The arguments are: the context backend, the bounds where to draw
return	object

CreateMultiResolutionImage() public method

Creates an image with multiple representations in different sizes

The first image of the list if the reference image, the one with scale factor = 1

public CreateMultiResolutionImage ( IEnumerable
images	IEnumerable	Backends of the different image representations
return	object

CreateMultiSizeIcon() public method

public CreateMultiSizeIcon ( IEnumerable
images	IEnumerable
return	object

CropBitmap() public abstract method

public abstract CropBitmap ( object handle, int srcX, int srcY, int width, int height ) : object
handle	object
srcX	int
srcY	int
width	int
height	int
return	object

GetBitmapPixel() public abstract method

public abstract GetBitmapPixel ( object handle, int x, int y ) : Color
handle	object
x	int
y	int
return	Color

GetSize() public abstract method

Gets the size of an image

This method should return a size of (0,0) if the image doesn't have an intrinsic size. For example: if the image is a vecor image, or if is an icon composed of images of different sizes.

public abstract GetSize ( object handle ) : Size
handle	object	Image handle
return	Size

GetStockIcon() public abstract method

public abstract GetStockIcon ( string id ) : Image
id	string
return	Image

HasMultipleSizes() public abstract method

Returns True if the image has multiple representations of different sizes.

For example, it would return True for a .ico file which as several representations of the image in different sizes

public abstract HasMultipleSizes ( object handle ) : bool
handle	object	Image handle.
return	bool

IsBitmap() public abstract method

Determines whether this instance is a bitmap

public abstract IsBitmap ( object handle ) : bool
handle	object	Image handle
return	bool

LoadFromFile() public method

public LoadFromFile ( string file ) : object
file	string
return	object

LoadFromResource() public method

public LoadFromResource ( Assembly asm, string name ) : object
asm	System.Reflection.Assembly
name	string
return	object

LoadFromStream() public abstract method

public abstract LoadFromStream ( Stream stream ) : object
stream	Stream
return	object

SaveToStream() public abstract method

public abstract SaveToStream ( object backend, System stream, ImageFileType fileType ) : void
backend	object
stream	System
fileType	ImageFileType
return	void

SetBitmapPixel() public abstract method

public abstract SetBitmapPixel ( object handle, int x, int y, Color color ) : void
handle	object
x	int
y	int
color	Color
return	void