Mirrors/go-prompt
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docs: add comments about a width of the scrollbar

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This commit is contained in:
Nao YONASHIRO 2018-02-12 18:51:27 +09:00
parent d3c627faf4
commit 63f3b83828
1 changed files with 3 additions and 1 deletions
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4
render.go
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@ -101,12 +101,13 @@ func (r *Render) renderCompletion(buf *Buffer, completions *CompletionManager) {
formatted, width := formatSuggestions(
suggestions,
int(r.col)-len(r.prefix)-1,
int(r.col)-len(r.prefix)-1, // -1 means a width of scrollbar
)
formatted = formatted[completions.verticalScroll : completions.verticalScroll+windowHeight]
l := len(formatted)
r.prepareArea(windowHeight)
// +1 means a width of scrollbar.
d := (len(r.prefix) + len(buf.Document().TextBeforeCursor()) + 1) % int(r.col)
if d == 0 { // the cursor is on right end.
r.out.CursorBackward(width)
@ -139,6 +140,7 @@ func (r *Render) renderCompletion(buf *Buffer, completions *CompletionManager) {
r.out.SetColor(DefaultColor, r.scrollbarBGColor, false)
}
r.out.WriteStr(" ")
// +1 means a width of scrollbar.
r.out.CursorBackward(width + 1)
}
if d == 0 { // the cursor is on right end.