func (cl *CommandLine) Draw(draw_cursor bool) {
cmd_length := cl.get_visible_length()
cmd := string(cl.Cmd[:cmd_length])
util.WriteString(cl.X, cl.Y, cl.Length, cl.FG, cl.BG, cl.Prefix)
util.WriteString_FillWithChar(cl.X+len(cl.Prefix), cl.Y, cl.Length, cl.FG, cl.BG, cmd, cl.FillRune)
if draw_cursor {
termbox.SetCursor(cl.X+len(cl.Prefix)+util.Min(cl.cursor_at, cmd_length), cl.Y)
}
}
func (tb *TextBox) draw_question() {
startx := tb.X + 2
starty := tb.Y + 2
stopx := tb.X + tb.Width - 2
line_width := stopx - startx
question_array := []rune(tb.question)
for i := starty; len(question_array) > 0; i++ {
str_len := util.Min(line_width, len(question_array))
str := string(question_array[:str_len])
util.WriteString(startx, i, line_width, termbox.ColorWhite, termbox.ColorBlue, str)
question_array = question_array[str_len:]
}
}
func (pl *PrintableListing) PrintListing() {
var dir_header_fg termbox.Attribute
if pl.filter_nomatch {
dir_header_fg = termbox.ColorRed
} else {
dir_header_fg = termbox.ColorWhite
}
pl.col_at = pl.calc_start_column()
util.WriteString(0, 0, pl.width, dir_header_fg, termbox.ColorBlue, pl.header)
pl.rows = pl.height - 1
pl.cols = (pl.items.Len() / pl.height) + 1
max_cols := (pl.width / pl.column_width) + 1
available_boxes := max_cols * pl.rows
start_at := pl.col_at * pl.rows
var i int = 0
for e := pl.items.Front(); i-start_at < available_boxes; {
if i < start_at {
i++
if e == nil {
panic(errors.New(fmt.Sprintf("col_at: %d", pl.col_at)))
}
e = e.Next()
continue // Fast forward
}
effective_index := i - start_at
if e != nil {
pl.print_entry(
effective_index%pl.rows, effective_index/pl.rows,
e, e == pl.highlighted_element)
e = e.Next()
} else {
col := effective_index / pl.rows
row := effective_index % pl.rows
str_width := util.Min(pl.column_width, pl.width-(col*pl.column_width))
util.WriteString(
col*pl.column_width, row+1, str_width,
termbox.ColorBlack, termbox.ColorBlack, "")
}
i++
}
}
func CreateTextBox(question string, maxwidth, maxheight int) (*TextBox, error) {
if maxheight < box_minheight {
return nil, errors.New(fmt.Sprintf("TextBoxes need at least %d rows", box_minheight))
}
var tb TextBox
tb.question = question
startx := tb.X + 2
stopx := tb.X + tb.Width - 2
effective_width := stopx - startx
question_rows := (effective_width / len(tb.question)) + 1
needed_rows := question_rows + vertical_overhead
if needed_rows > maxheight {
return nil, errors.New(fmt.Sprintf(
"Not enough room provided for textbox. maxwidth:%d maxheight:%d needed_rows:%d",
maxwidth, maxheight, needed_rows))
}
if question_rows > 1 {
tb.Width = maxwidth
} else {
tb.Width = len(tb.question) + horizontal_overhead
if tb.Width < comfortable_width {
tb.Width = util.Min(maxwidth, comfortable_width)
}
}
tb.Height = question_rows + vertical_overhead
tb.cl = &CommandLine{
Length: tb.Width - 4,
FG: termbox.ColorWhite,
BG: termbox.ColorRed,
Prefix: "",
FillRune: '_',
Cmd: make([]rune, 0, 8),
}
TextBoxIsOpen = true
return &tb, nil
}
func (cl *CommandLine) get_visible_length() int {
max_length := cl.Length - len(cl.Prefix) - 1
return util.Min(len(cl.Cmd), max_length)
}