op/paint: document ImageOp gotcha

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2020-05-14 13:31:21 +02:00
parent b7ba809517
commit 29c9b06dab
1 changed files with 3 additions and 0 deletions
@@ -15,6 +15,9 @@ import (
 )

 // ImageOp sets the brush to an image.
+//
+// Note: the ImageOp may keep a reference to the backing image.
+// See NewImageOp for details.
 type ImageOp struct {
 	// Rect is the section if the backing image to use.
 	Rect image.Rectangle