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Code Issues Releases Activity

better scroll support

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This commit is contained in:
Jesse Duffield 2021-04-02 15:25:27 +11:00
parent 1a5f380c00
commit e8f99c3326
1 changed files with 14 additions and 2 deletions
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16
pkg/gui/global_handlers.go
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@ -77,12 +77,24 @@ func (gui *Gui) scrollDownView(viewName string) error {
} }
ox, oy := mainView.Origin() ox, oy := mainView.Origin()
y := oy y := oy
if !gui.Config.GetUserConfig().Gui.ScrollPastBottom { canScrollPastBottom := gui.Config.GetUserConfig().Gui.ScrollPastBottom
if !canScrollPastBottom {
_, sy := mainView.Size() _, sy := mainView.Size()
y += sy y += sy
} }
scrollHeight := gui.Config.GetUserConfig().Gui.ScrollHeight scrollHeight := gui.Config.GetUserConfig().Gui.ScrollHeight
if y < mainView.LinesHeight() { scrollableLines := mainView.ViewLinesHeight() - y
if scrollableLines > 0 {
// margin is about how many lines must still appear if you scroll
// all the way down. In practice every file ends in a newline so it will really
// just show a single line
margin := 1
if canScrollPastBottom {
margin = 2
}
if scrollableLines-margin < scrollHeight {
scrollHeight = scrollableLines - margin
}
if err := mainView.SetOrigin(ox, oy+scrollHeight); err != nil { if err := mainView.SetOrigin(ox, oy+scrollHeight); err != nil {
return err return err
} }