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gio/op/paint/doc.go
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Elias Naur 29cea1db49 io/pointer,io/router: replace AreaOp with clip.Op
Pointer hit areas and paint clip areas are separate concepts, but
similar enough to warrant merging. This change replaces pointer hit
areas with clip areas, so Gio is left with just one area concept (in
package op/clip).

The reason for separating the concepts in the original Gio release was
because of my being unsure general path/stroke hit areas would ever be
implemented, let alone efficient.

This change represents a change of mind, in the sense that it's better
to have an incomplete API than two separate area concepts.

Leave the deprecated pointer.Rect, pointer.Ellipse for temporary
backwards compatibility.

This is an API change. Most existing programs should continue to build
with this change, but may have to adjust to having all clip.Ops participate
in InputOp hit areas.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
2021-11-03 14:12:31 +01:00

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// SPDX-License-Identifier: Unlicense OR MIT
/*
Package paint provides drawing operations for 2D graphics.
The PaintOp operation fills the current clip with the current brush, taking the
current transformation into account. Drawing outside the current clip area is
ignored.
The current brush is set by either a ColorOp for a constant color, or
ImageOp for an image, or LinearGradientOp for gradients.
All color.NRGBA values are in the sRGB color space.
*/
package paint