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op/clip: split Rect into pixel-aligned Rect and rounded RRect

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The pixel-aligned Rect is more efficient and easier to use in the common case
of layout clipping.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-07-09 18:06:00 +02:00
parent 4818538ef8
commit d572aa23ac
14 changed files with 105 additions and 116 deletions
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widget/material/button.go
+4 -4
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@@ -89,7 +89,7 @@ func Clickable(gtx layout.Context, button *widget.Clickable, w layout.Widget) la
return layout.Stack{}.Layout(gtx,
layout.Expanded(button.Layout),
layout.Expanded(func(gtx layout.Context) layout.Dimensions {
clip.Rect{
clip.RRect{
Rect: f32.Rectangle{Max: f32.Point{
X: float32(gtx.Constraints.Min.X),
Y: float32(gtx.Constraints.Min.Y),
@@ -122,7 +122,7 @@ func (b ButtonLayoutStyle) Layout(gtx layout.Context, w layout.Widget) layout.Di
return layout.Stack{Alignment: layout.Center}.Layout(gtx,
layout.Expanded(func(gtx layout.Context) layout.Dimensions {
rr := float32(gtx.Px(b.CornerRadius))
clip.Rect{
clip.RRect{
Rect: f32.Rectangle{Max: f32.Point{
X: float32(gtx.Constraints.Min.X),
Y: float32(gtx.Constraints.Min.Y),
@@ -153,7 +153,7 @@ func (b IconButtonStyle) Layout(gtx layout.Context) layout.Dimensions {
size := gtx.Constraints.Min.X
sizef := float32(size)
rr := sizef * .5
clip.Rect{
clip.RRect{
Rect: f32.Rectangle{Max: f32.Point{X: sizef, Y: sizef}},
NE: rr, NW: rr, SE: rr, SW: rr,
}.Add(gtx.Ops)
@@ -282,7 +282,7 @@ func drawInk(gtx layout.Context, c widget.Press) {
X: -rr,
Y: -rr,
})).Add(gtx.Ops)
clip.Rect{
clip.RRect{
Rect: f32.Rectangle{Max: f32.Point{
X: float32(size),
Y: float32(size),