func (o *opCompleter) CompleteRefresh() {
if !o.inCompleteMode {
return
}
lineCnt := o.op.buf.CursorLineCount()
colWidth := 0
for _, c := range o.candidate {
w := runes.WidthAll(c)
if w > colWidth {
colWidth = w
}
}
colNum := getWidth(o.op.cfg.StdoutFd) / (colWidth + o.candidateOff + 2)
o.candidateColNum = colNum
buf := bytes.NewBuffer(nil)
buf.Write(bytes.Repeat([]byte("\n"), lineCnt))
same := o.op.buf.RuneSlice(-o.candidateOff)
colIdx := 0
lines := 1
buf.WriteString("\033[J")
for idx, c := range o.candidate {
inSelect := idx == o.candidateChoise && o.IsInCompleteSelectMode()
if inSelect {
buf.WriteString("\033[30;47m")
}
buf.WriteString(string(same))
buf.WriteString(string(c))
buf.Write(bytes.Repeat([]byte(" "), colWidth-len(c)))
if inSelect {
buf.WriteString("\033[0m")
}
buf.WriteString(" ")
colIdx++
if colIdx == colNum {
buf.WriteString("\n")
lines++
colIdx = 0
}
}
// move back
fmt.Fprintf(buf, "\033[%dA\r", lineCnt-1+lines)
fmt.Fprintf(buf, "\033[%dC", o.op.buf.idx+o.op.buf.PromptLen())
o.w.Write(buf.Bytes())
}
func (r *RuneBuffer) IdxLine() int {
totalWidth := runes.WidthAll(r.buf[:r.idx]) + r.PromptLen()
w := getWidth(r.cfg.StdoutFd)
if w <= 0 {
return -1
}
line := totalWidth / w
// if cursor is in last colmun and not any character behind it
// the cursor will in the first line, otherwise will in the second line
// this situation only occurs in golang's Stdout
// TODO: figure out why
if totalWidth%w == 0 && len(r.buf) == r.idx && !isWindows {
line--
}
return line
}
func (r *RuneBuffer) PromptLen() int {
return runes.WidthAll(runes.ColorFilter(r.prompt))
}
func (r *RuneBuffer) CurrentWidth(x int) int {
return runes.WidthAll(r.buf[:x])
}
func (r *RuneBuffer) calWidth(m int) int {
if m > 0 {
return runes.WidthAll(r.buf[r.idx : r.idx+m])
}
return runes.WidthAll(r.buf[r.idx+m : r.idx])
}
func (r *RuneBuffer) LineCount() int {
return LineCount(r.cfg.StdoutFd, runes.WidthAll(r.buf)+r.PromptLen())
}
