Sets the GtkSourceGutterSizeFunc to use for renderer. This function is used to setup the cell renderer properties for measuring the maximum size of the cell. Since 2.8
a GtkCellRenderer
the GtkSourceGutterSizeFunc to use
the user data for func
the destroy notification for func_data
See Implementation
Sets the GtkSourceGutterSizeFunc to use for renderer. This function is used to setup the cell renderer properties for measuring the maximum size of the cell. Since 2.8