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Text boxes now have properly constrained scrolling/autoscrolling

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This commit is contained in:
Sasha Koshka 2023-09-09 20:22:10 -04:00
parent 2ecfafa469
commit 7fc2b1cd87
1 changed files with 58 additions and 10 deletions
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68
textbox.go
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@ -59,7 +59,7 @@ func (this *textBox) ContentBounds () image.Rectangle {
} }
func (this *textBox) ScrollTo (point image.Point) { func (this *textBox) ScrollTo (point image.Point) {
// TODO: constrain scroll if this.scroll == point { return }
this.scroll = point this.scroll = point
this.invalidateLayout() this.invalidateLayout()
} }
@ -115,6 +115,7 @@ func (this *textBox) Select (dot text.Dot) {
if this.dot == dot { return } if this.dot == dot { return }
this.SetFocused(true) this.SetFocused(true)
this.dot = dot this.dot = dot
this.scrollToDot()
this.on.dotChange.Broadcast() this.on.dotChange.Broadcast()
this.invalidateDraw() this.invalidateDraw()
} }
@ -275,16 +276,13 @@ func (this *textBox) normalizedLayoutBoundsSpace () image.Rectangle {
} }
func (this *textBox) contentMinimum () image.Point { func (this *textBox) contentMinimum () image.Point {
minimum := image.Pt ( minimum := this.drawer.MinimumSize()
this.drawer.Em().Round(),
this.drawer.LineHeight().Round())
textSize := this.drawer.MinimumSize() if this.hOverflow || this.wrap {
if !this.hOverflow && !this.wrap { minimum.X = this.drawer.Em().Round()
minimum.X = textSize.X
} }
if !this.vOverflow { if this.vOverflow {
minimum.Y = textSize.Y minimum.Y = this.drawer.LineHeight().Round()
} }
return minimum.Add(this.box.contentMinimum()) return minimum.Add(this.box.contentMinimum())