op/clip: split clip operations into its own package

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2019-11-09 19:05:03 +01:00
parent 560cf6054c
commit e864ac3fc3
14 changed files with 72 additions and 53 deletions
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: Unlicense OR MIT
+
+/*
+Package clip provides operations for clipping paint operations.
+Drawing outside the current clip area is ignored.
+
+The current clip is initially the infinite set. An Op sets the clip
+to the intersection of the current clip and the clip area it
+represents. If you need to reset the current clip to its value
+before applying an Op, use op.StackOp.
+
+General clipping areas are constructed with Path. Simpler special
+cases such as rectangular clip areas also exist as convenient
+constructors.
+*/
+package clip