CairoTexture

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Object Hierarchy:

Description:

Content:

Properties:

• public bool auto_resize { get; set; }
  Controls whether the CairoTexture should automatically resize the Cairo surface whenever the actor's allocation changes.
• public uint surface_height { get; set; }
  The height of the Cairo surface used by the CairoTexture actor, in pixels.
• public uint surface_width { get; set; }
  The width of the Cairo surface used by the CairoTexture actor, in pixels.

Creation methods:

• public CairoTexture (uint width, uint height)
  Creates a new CairoTexture actor, with a surface of width by height pixels.

Methods:

• public void clear ()
  Clears this's internal drawing surface, so that the next upload will replace the previous contents of the CairoTexture rather than adding to it.
• public Context create ()
  Creates a new Cairo context for the cairo texture.
• public Context create_region (int x_offset, int y_offset, int width, int height)
  Creates a new Cairo context that will updat the region defined by x_offset, y_offset, width and height.
• public bool get_auto_resize ()
  Retrieves the value set using set_auto_resize.
• public void get_surface_size (out uint width, out uint height)
  Retrieves the surface width and height for this.
• public void invalidate ()
  Invalidates the whole surface of a CairoTexture .
• public void invalidate_rectangle (RectangleInt? rect)
  Invalidates a rectangular region of a CairoTexture .
• public void set_auto_resize (bool value)
  Sets whether the CairoTexture should ensure that the backing Cairo surface used matches the allocation assigned to the actor.
• public void set_surface_size (uint width, uint height)
  Resizes the Cairo surface used by this to width and height.

Signals:

• public virtual signal Surface create_surface (uint width, uint height)
  The create_surface signal is emitted when a CairoTexture news its surface (re)created, which happens either when the Cairo context is created with create or create_region, or when the surface is resized through set_surface_size.
• public virtual signal bool draw (Context cr)
  The draw signal is emitted each time a CairoTexture has been invalidated.

Inherited Members: