Description
Establishes a new clip region by intersecting the current clip
region with the current path as it would be filled by cairoFill
and according to the current fill rule (see cairoSetFillRule).Details
After cairoClip, the current path will be cleared from the cairo
context.
The current clip region affects all drawing operations by
effectively masking out any changes to the surface that are outside
the current clip region.
Calling cairoClip can only make the clip region smaller, never
larger. But the current clip is part of the graphics state, so a
temporary restriction of the clip region can be achieved by
calling cairoClip within a cairoSave/cairoRestore
pair. The only other means of increasing the size of the clip
region is cairoResetClip.