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Add scrollOffEnabled config

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This commit is contained in:
Stefan Haller
2023-08-17 09:58:16 +02:00
parent 125d4fa9dc
commit b2d629b50a
3 changed files with 26 additions and 11 deletions
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24
pkg/gui/controllers/scroll_off_margin.go
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@@ -9,24 +9,28 @@ import (
// To be called after pressing up-arrow; checks whether the cursor entered the
// top scroll-off margin, and so the view needs to be scrolled up one line
func checkScrollUp(view types.IViewTrait, userConfig *config.UserConfig, lineIdxBefore int, lineIdxAfter int) {
viewPortStart, viewPortHeight := view.ViewPortYBounds()
if userConfig.Gui.ScrollOffBehavior != "jump" {
viewPortStart, viewPortHeight := view.ViewPortYBounds()
linesToScroll := calculateLinesToScrollUp(
viewPortStart, viewPortHeight, userConfig.Gui.ScrollOffMargin, lineIdxBefore, lineIdxAfter)
if linesToScroll != 0 {
view.ScrollUp(linesToScroll)
linesToScroll := calculateLinesToScrollUp(
viewPortStart, viewPortHeight, userConfig.Gui.ScrollOffMargin, lineIdxBefore, lineIdxAfter)
if linesToScroll != 0 {
view.ScrollUp(linesToScroll)
}
}
}
// To be called after pressing down-arrow; checks whether the cursor entered the
// bottom scroll-off margin, and so the view needs to be scrolled down one line
func checkScrollDown(view types.IViewTrait, userConfig *config.UserConfig, lineIdxBefore int, lineIdxAfter int) {
viewPortStart, viewPortHeight := view.ViewPortYBounds()
if userConfig.Gui.ScrollOffBehavior != "jump" {
viewPortStart, viewPortHeight := view.ViewPortYBounds()
linesToScroll := calculateLinesToScrollDown(
viewPortStart, viewPortHeight, userConfig.Gui.ScrollOffMargin, lineIdxBefore, lineIdxAfter)
if linesToScroll != 0 {
view.ScrollDown(linesToScroll)
linesToScroll := calculateLinesToScrollDown(
viewPortStart, viewPortHeight, userConfig.Gui.ScrollOffMargin, lineIdxBefore, lineIdxAfter)
if linesToScroll != 0 {
view.ScrollDown(linesToScroll)
}
}
}