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io/pointer: support nested scrollables

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Fixes #185.

Signed-off-by: pierre <pierre.curto@gmail.com>
This commit is contained in:
pierre
2021-03-31 08:25:08 +02:00
committed by Elias Naur
parent f3d75f38a9
commit 5e1a662b94
7 changed files with 158 additions and 20 deletions
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widget/editor.go
+11 -1
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@@ -547,7 +547,17 @@ func (e *Editor) layout(gtx layout.Context) layout.Dimensions {
r.Max.X += pointerPadding
pointer.Rect(r).Add(gtx.Ops)
pointer.CursorNameOp{Name: pointer.CursorText}.Add(gtx.Ops)
e.scroller.Add(gtx.Ops)
var scrollRange image.Rectangle
if e.SingleLine {
scrollRange.Min.X = -e.scrollOff.X
scrollRange.Max.X = max(0, e.dims.Size.X-(e.scrollOff.X+e.viewSize.X))
} else {
scrollRange.Min.Y = -e.scrollOff.Y
scrollRange.Max.Y = max(0, e.dims.Size.Y-(e.scrollOff.Y+e.viewSize.Y))
}
e.scroller.Add(gtx.Ops, scrollRange)
e.clicker.Add(gtx.Ops)
e.dragger.Add(gtx.Ops)
e.caret.on = false