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widget: simplify Editor event flushing

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Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2020-05-24 12:45:28 +02:00
parent d8000880c3
commit c791f59351
1 changed files with 5 additions and 4 deletions
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widget/editor.go
+5 -4
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@@ -98,6 +98,11 @@ func (e *Editor) Events(gtx layout.Context) []EditorEvent {
} }
func (e *Editor) processEvents(gtx layout.Context) { func (e *Editor) processEvents(gtx layout.Context) {
// Flush events from before the previous Layout.
n := copy(e.events, e.events[e.prevEvents:])
e.events = e.events[:n]
e.prevEvents = n
if e.shaper == nil { if e.shaper == nil {
// Can't process events without a shaper. // Can't process events without a shaper.
return return
@@ -234,10 +239,6 @@ func (e *Editor) Focused() bool {
// Layout lays out the editor. // Layout lays out the editor.
func (e *Editor) Layout(gtx layout.Context, sh text.Shaper, font text.Font, size unit.Value) layout.Dimensions { func (e *Editor) Layout(gtx layout.Context, sh text.Shaper, font text.Font, size unit.Value) layout.Dimensions {
// Flush events from before the previous frame.
copy(e.events, e.events[e.prevEvents:])
e.events = e.events[:len(e.events)-e.prevEvents]
e.prevEvents = len(e.events)
textSize := fixed.I(gtx.Px(size)) textSize := fixed.I(gtx.Px(size))
if e.font != font || e.textSize != textSize { if e.font != font || e.textSize != textSize {
e.invalidate() e.invalidate()