Method renderScopelights

texteditor/render.go:282–290

renderScopelights renders a highlight background color for regions in the Scopelights list.

(stln, edln int)

// renderScopelights renders a highlight background color for regions
// in the Scopelights list.
func (ed *Editor) renderScopelights(stln, edln int) {
	for _, reg := range ed.scopelights {
		reg := ed.Buffer.AdjustRegion(reg)
		if reg.IsNil() || (stln >= 0 && (reg.Start.Ln > edln || reg.End.Ln < stln)) {
			continue
		}
		ed.renderRegionBox(reg, ed.HighlightColor)
	}
}

// renderRegionBox renders a region in background according to given background
func (ed *Editor) renderRegionBox(reg text.Region, bg image.Image) {