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.
a cairo_t
a GdkRectangle
a GtkTextIter
See Implementation
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.