layout: replace Align with a Layout method on Direction

It's one less type (Align) and shorter:

Before:

	layout.Align(layout.Center).Layout(...)

After

	layout.Center.Layout(...)

It is also safer: since `layout.Align(...)` was a casting operation,
the Go compiler would not complain about an incompatible constant.

For example, the widget/material package contained a wrong cast:

	layout.Align(layout.Start)

which should have been

	layout.Align(layout.W)

After this change, attempting `layout.Start.Layout(...)` result
in a compile error.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-02-02 17:13:02 +01:00
parent 359839ad07
commit fb7337f794
4 changed files with 7 additions and 11 deletions
+1 -1
View File
@@ -80,7 +80,7 @@ func (b Button) Layout(gtx *layout.Context, button *widget.Button) {
layout.Stacked(func() {
gtx.Constraints.Width.Min = hmin
gtx.Constraints.Height.Min = vmin
layout.Align(layout.Center).Layout(gtx, func() {
layout.Center.Layout(gtx, func() {
layout.Inset{Top: unit.Dp(10), Bottom: unit.Dp(10), Left: unit.Dp(12), Right: unit.Dp(12)}.Layout(gtx, func() {
paint.ColorOp{Color: col}.Add(gtx.Ops)
widget.Label{}.Layout(gtx, b.shaper, b.Font, b.Text)
+2 -2
View File
@@ -38,7 +38,7 @@ func (c *checkable) layout(gtx *layout.Context, checked bool) {
vmin := gtx.Constraints.Height.Min
layout.Flex{Alignment: layout.Middle}.Layout(gtx,
layout.Rigid(func() {
layout.Align(layout.Center).Layout(gtx, func() {
layout.Center.Layout(gtx, func() {
layout.UniformInset(unit.Dp(2)).Layout(gtx, func() {
size := gtx.Px(c.Size)
icon.Color = c.IconColor
@@ -53,7 +53,7 @@ func (c *checkable) layout(gtx *layout.Context, checked bool) {
layout.Rigid(func() {
gtx.Constraints.Width.Min = hmin
gtx.Constraints.Height.Min = vmin
layout.Align(layout.Start).Layout(gtx, func() {
layout.W.Layout(gtx, func() {
layout.UniformInset(unit.Dp(2)).Layout(gtx, func() {
paint.ColorOp{Color: c.Color}.Add(gtx.Ops)
widget.Label{}.Layout(gtx, c.shaper, c.Font, c.Label)