BufferSurface

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Object Hierarchy:

Description:

Content:

Properties:

• public Context context { get; }
  The Cairo.Context for the internal surface. All drawing operations done on this Granite.Drawing.BufferSurface should use this context.
• public int height { get; }
  The height of the BufferSurface, in pixels.
• public Surface surface { get; }
  The Cairo.Surface which will store the results of all drawing operations made with Granite.Drawing.BufferSurface.context.
• public int width { get; }
  The width of the Granite.Drawing.BufferSurface , in pixels.

Creation methods:

• public BufferSurface (int width, int height)
  Constructs a new, empty Granite.Drawing.BufferSurface with the supplied dimensions.
• public BufferSurface.with_buffer_surface (int width, int height, BufferSurface model)
  Constructs a new, empty Granite.Drawing.BufferSurface with the supplied dimensions, using the supplied Granite.Drawing.BufferSurface as a model.
• public BufferSurface.with_surface (int width, int height, Surface model)
  Constructs a new, empty Granite.Drawing.BufferSurface with the supplied dimensions, using the supplied Cairo.Surface as a model.

Methods:

• public Color average_color ()
  Averages all the colors in the internal Cairo.Surface.
• public void clear ()
  Clears the internal Cairo.Surface, making all pixels fully transparent.
• public void exponential_blur (int radius)
  Performs a blur operation on the internal Cairo.Surface, using an exponential blurring algorithm. This method is usually the fastest and produces good-looking results (though not quite as good as gaussian's).
• public void fast_blur (int radius, int process_count = 1)
  Performs a blur operation on the internal Cairo.Surface, using the fast-blur algorithm found here http://incubator.quasimondo.com/processing/superfastblur.pde.
• public void gaussian_blur (int radius)
  Performs a blur operation on the internal Cairo.Surface, using a gaussian blurring algorithm. This method is very slow, albeit producing debatably the best-looking results, and in most cases developers should use the exponential blurring algorithm instead.
• public Pixbuf load_to_pixbuf ()
  Creates a Gdk.Pixbuf from internal Cairo.Surface.

Inherited Members: