termui/helper.go

54 lines
858 B
Go

package termui
import tm "github.com/nsf/termbox-go"
import rw "github.com/mattn/go-runewidth"
/* ---------------Port from termbox-go --------------------- */
type Attribute uint16
const (
ColorDefault Attribute = iota
ColorBlack
ColorRed
ColorGreen
ColorYellow
ColorBlue
ColorMagenta
ColorCyan
ColorWhite
)
const (
AttrBold Attribute = 1 << (iota + 9)
AttrUnderline
AttrReverse
)
var (
dot = "…"
dotw = rw.StringWidth(dot)
)
/* ----------------------- End ----------------------------- */
func toTmAttr(x Attribute) tm.Attribute {
return tm.Attribute(x)
}
func str2runes(s string) []rune {
return []rune(s)
}
func trimStr2Runes(s string, w int) []rune {
if w <= 0 {
return []rune{}
}
sw := rw.StringWidth(s)
if sw+dotw >= w {
return []rune(rw.Truncate(s, w, ""))
} else {
return []rune(rw.Truncate(s, w, "…"))
}
}