tomo/backend
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Actually use layouts

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This commit is contained in:
Sasha Koshka 2024-07-25 21:05:03 -04:00
parent bb082d3989
commit 7809aac72f
1 changed files with 15 additions and 12 deletions
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27
internal/system/containerbox.go
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@ -20,7 +20,6 @@ type containerBox struct {
attrLayout attrHierarchy[tomo.AttrLayout]
children []anyBox
layout tomo.Layout
on struct {
contentBoundsChange event.FuncBroadcaster
@ -187,19 +186,21 @@ func (this *containerBox) setAttr (attr tomo.Attr, user bool) {
}
func (this *containerBox) recommendedHeight (width int) int {
if this.layout == nil || this.attrOverflow.Value().Y {
layout := this.attrLayout.Value().Layout
if layout == nil || this.attrOverflow.Value().Y {
return this.minSize.Value().Y
} else {
return this.layout.RecommendedHeight(this.layoutHints(), this.boxQuerier(), width) +
return layout.RecommendedHeight(this.layoutHints(), this.boxQuerier(), width) +
this.borderAndPaddingSum().Vertical()
}
}
func (this *containerBox) recommendedWidth (height int) int {
if this.layout == nil || this.attrOverflow.Value().X {
layout := this.attrLayout.Value().Layout
if layout == nil || this.attrOverflow.Value().X {
return this.minSize.Value().X
} else {
return this.layout.RecommendedWidth(this.layoutHints(), this.boxQuerier(), height) +
return layout.RecommendedWidth(this.layoutHints(), this.boxQuerier(), height) +
this.borderAndPaddingSum().Horizontal()
}
}
@ -274,8 +275,9 @@ func (this *containerBox) layoutHints () tomo.LayoutHints {
func (this *containerBox) contentMinimum () image.Point {
overflow := this.attrOverflow.Value()
minimum := this.box.contentMinimum()
if this.layout != nil {
layoutMinimum := this.layout.MinimumSize (
layout := this.attrLayout.Value().Layout
if layout != nil {
layoutMinimum := layout.MinimumSize (
this.layoutHints(),
this.boxQuerier())
if overflow.X { layoutMinimum.X = 0 }
@ -288,12 +290,13 @@ func (this *containerBox) contentMinimum () image.Point {
func (this *containerBox) doLayout () {
this.box.doLayout()
previousContentBounds := this.contentBounds
layout := this.attrLayout.Value().Layout
// by default, use innerBounds (translated to 0, 0) for contentBounds.
// if a direction overflows, use the layout's minimum size for it.
var minimum image.Point
if this.layout != nil {
minimum = this.layout.MinimumSize (
if layout != nil {
minimum = layout.MinimumSize (
this.layoutHints(),
this.boxQuerier())
}
@ -304,10 +307,10 @@ func (this *containerBox) doLayout () {
if overflow.Y { this.contentBounds.Max.Y = this.contentBounds.Min.Y + minimum.Y }
// arrange children
if this.layout != nil {
if layout != nil {
layoutHints := this.layoutHints()
layoutHints.Bounds = this.contentBounds
this.layout.Arrange(layoutHints, this.boxArranger())
layout.Arrange(layoutHints, this.boxArranger())
}
// build an accurate contentBounds by unioning the bounds of all child
@ -323,7 +326,7 @@ func (this *containerBox) doLayout () {
// offset children and contentBounds by scroll
for _, box := range this.children {
assertAnyBox(box).setBounds(box.Bounds().Add(this.scroll).Add(innerBounds.Min))
box.setBounds(box.Bounds().Add(this.scroll).Add(innerBounds.Min))
}
this.contentBounds = this.contentBounds.Add(this.scroll)