wx.Bitmap

Package wx :: Class Bitmap

Type Bitmap

object --+        
         |        
    Object --+    
             |    
     GDIObject --+
                 |
                Bitmap

The wx.Bitmap class encapsulates the concept of a platform-dependent bitmap. It can be either monochrome or colour, and either loaded from a file or created dynamically. A bitmap can be selected into a memory device context (instance of wx.MemoryDC). This enables the bitmap to be copied to a window or memory device context using wx.DC.Blit, or to be used as a drawing surface.

The BMP and XMP image file formats are supported on all platforms by wx.Bitmap. Other formats are automatically loaded by wx.Image and converted to a wx.Bitmap, so any image file format supported by wx.Image can be used.

To Do:

Add wrappers and support for raw bitmap data access. Can this be be put into Python without losing the speed benefits of the teplates and iterators in rawbmp.h?
Find a way to do very efficient PIL Image <--> wx.Bitmap converstions.

Method Summary
Bitmap	`__init__(self, name, type)`
	`__del__(self)`
bool	`__eq__(self, other)`
bool	`__ne__(self, other)`
	`__nonzero__(self)`
	`__repr__(self)`
Image	`ConvertToImage(self)` Creates a platform-independent image from a platform-dependent bitmap.
bool	`CopyFromIcon(self, icon)`
int	`GetDepth(self)` Gets the colour depth of the bitmap.
int	`GetHeight(self)` Gets the height of the bitmap in pixels.
Mask	`GetMask(self)` Gets the associated mask (if any) which may have been loaded from a file or explpicitly set for the bitmap.
Palette	`GetPalette(self)`
Size	`GetSize(self)` Get the size of the bitmap.
Bitmap	`GetSubBitmap(self, rect)` Returns a sub-bitmap of the current one as long as the rect belongs entirely to the bitmap.
int	`GetWidth(self)` Gets the width of the bitmap in pixels.
bool	`LoadFile(self, name, type)` Loads a bitmap from a file.
bool	`Ok(self)`
bool	`SaveFile(self, name, type, palette)` Saves a bitmap in the named file.
	`SetDepth(self, depth)` Set the depth property (does not affect the existing bitmap data).
	`SetHeight(self, height)` Set the height property (does not affect the existing bitmap data).
	`SetMask(self, mask)` Sets the mask for this bitmap.
	`SetMaskColour(self, colour)` Create a Mask based on a specified colour in the Bitmap.
	`SetSize(self, size)` Set the bitmap size (does not affect the existing bitmap data).
	`SetWidth(self, width)` Set the width property (does not affect the existing bitmap data).

Method Details

init(self, name, type=BITMAP_TYPE_ANY)
(Constructor)

Loads a bitmap from a file.

Parameters:

name - Name of the file to load the bitmap from.
(type=String)

type -

The type of image to expect. Can be one of the following constants (assuming that the neccessary wx.Image handlers are loaded):

wx.BITMAP_TYPE_ANY
wx.BITMAP_TYPE_BMP
wx.BITMAP_TYPE_ICO
wx.BITMAP_TYPE_CUR
wx.BITMAP_TYPE_XBM
wx.BITMAP_TYPE_XPM
wx.BITMAP_TYPE_TIF
wx.BITMAP_TYPE_GIF
wx.BITMAP_TYPE_PNG
wx.BITMAP_TYPE_JPEG
wx.BITMAP_TYPE_PNM
wx.BITMAP_TYPE_PCX
wx.BITMAP_TYPE_PICT
wx.BITMAP_TYPE_ICON
wx.BITMAP_TYPE_ANI
wx.BITMAP_TYPE_IFF

(type=int)

Returns:: Bitmap

Overrides:: wx.GDIObject.__init__

See Also: Alternate constructors wx.EmptyBitmap, wx.BitmapFromIcon, wx.BitmapFromImage, wx.BitmapFromXPMData, wx.BitmapFromBits

ConvertToImage(self)

Creates a platform-independent image from a platform-dependent bitmap. This preserves mask information so that bitmaps and images can be converted back and forth without loss in that respect.

Returns:: Image

GetDepth(self)

Gets the colour depth of the bitmap. A value of 1 indicates a monochrome bitmap.

Returns:: int

GetHeight(self)

Gets the height of the bitmap in pixels.

Returns:: int

GetMask(self)

Gets the associated mask (if any) which may have been loaded from a file or explpicitly set for the bitmap.

Returns:: Mask

See Also: SetMask, wx.Mask

GetSize(self)

Get the size of the bitmap.

Returns:: Size

GetSubBitmap(self, rect)

Returns a sub-bitmap of the current one as long as the rect belongs entirely to the bitmap. This function preserves bit depth and mask information.

Parameters:: rect
(type=Rect)

Returns:: Bitmap

GetWidth(self)

Gets the width of the bitmap in pixels.

Returns:: int

LoadFile(self, name, type)

Loads a bitmap from a file. See __init__ for a description of the type parameter.

Parameters:: name
(type=String); type
(type=int)

Returns:: bool

SaveFile(self, name, type, palette=None)

Saves a bitmap in the named file. See __init__ for a description of the type parameter.

Parameters:: name
(type=String); type
(type=int); palette
(type=Palette)

Returns:: bool

SetDepth(self, depth)

Set the depth property (does not affect the existing bitmap data).

Parameters:: depth
(type=int)

SetHeight(self, height)

Set the height property (does not affect the existing bitmap data).

Parameters:: height
(type=int)

SetMask(self, mask)

Sets the mask for this bitmap.

Parameters:: mask
(type=Mask)

See Also: GetMask, wx.Mask

SetMaskColour(self, colour)

Create a Mask based on a specified colour in the Bitmap.

Parameters:: colour
(type=Colour)

SetSize(self, size)

Set the bitmap size (does not affect the existing bitmap data).

Parameters:: size
(type=Size)

SetWidth(self, width)

Set the width property (does not affect the existing bitmap data).

Parameters:: width
(type=int)

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