wx.lib.graphics.GraphicsBitmap¶

A GraphicsBitmap is a wrapper around a cairo ImageSurface. It can be used as a source for drawing images, or as a target of drawing operations.

Class Hierarchy¶

Inheritance diagram for class GraphicsBitmap:

`__init__`	Create either a NULL GraphicsBitmap or an empty one if a size is given
`ConvertToImage`	Return the contents of this `GraphicsBitmap` as a `wx.Image`.
`CreateFromBitmap`	Create a GraphicsBitmap from a wx.Bitmap
`CreateFromBuffer`	Creates a GraphicsBitmap that uses the given buffer object as
`CreateFromPNG`	Create a GraphicsBitmap from a PNG file
`CreateFromSurface`	Use an existing cairo ImageSurface as a GraphicsBitmap
`IsNull`	Returns whether the object is valid.

`Format`	The type or format of the Cairo `Surface`.
`Height`	The height of the bitmap and surface
`Size`	A tuple consisting of the Width and Height
`Stride`	The “stride” of the Cairo `Surface`, in bytes.
`Surface`	A reference to the Cairo `Surface` used for this bitmap.
`Width`	The width of the bitmap and surface

class GraphicsBitmap(GraphicsObject)¶

A GraphicsBitmap is a wrapper around a cairo ImageSurface. It can be used as a source for drawing images, or as a target of drawing operations.

__init__(self, width=-1, height=-1, format=FORMAT_ARGB32)¶: Create either a NULL GraphicsBitmap or an empty one if a size is given

ConvertToImage(self)¶

Return the contents of this GraphicsBitmap as a wx.Image.

Currently not implemented…

static CreateFromBitmap(bitmap)¶: Create a GraphicsBitmap from a wx.Bitmap

static CreateFromBuffer(buffer, width, height, format=FORMAT_ARGB32, stride=-1)¶: Creates a GraphicsBitmap that uses the given buffer object as the pixel storage. This means that the current contents of the buffer will be the initial state of the bitmap, and anything drawn to this surface will be stored in the given buffer.

static CreateFromPNG(filename)¶: Create a GraphicsBitmap from a PNG file

static CreateFromSurface(surface)¶: Use an existing cairo ImageSurface as a GraphicsBitmap

Format¶: The type or format of the Cairo Surface. Typically FORMAT_ARGB32 or FORMAT_RGB24

Stride¶: The “stride” of the Cairo Surface, in bytes. The stride is the distance in bytes from the beginning of one row of the image data to the beginning of the next row.