begin

Description:

public virtual void begin (Context cr, Rectangle background_area, Rectangle cell_area, TextIter start, TextIter end)

Called when drawing a region begins.

The region to be drawn is indicated by start and end. The purpose is to allow the implementation to precompute some state before the draw method is called for each cell.

Parameters:

this	a SourceGutterRenderer
cr	a Context
background_area	a Rectangle
cell_area	a Rectangle
start	a TextIter
end	a TextIter