user space in effect at the time of [cairo.context.Context.setSource]. This means that further modifications of the current transformation matrix will not affect the source pattern. See [cairo.pattern.Pattern.setMatrix].
The default source pattern is a solid pattern that is opaque black, (that is, it is equivalent to cairo_set_source_rgb(cr, 0.0, 0.0, 0.0)).
Parameters
source | a #cairo_pattern_t to be used as the source for subsequent drawing operations. |