termui/helper.go
gizak b436024302 Fix https://github.com/gizak/termui/issues/10
Handle CJK wide characters in helper.go
Add multi width text ouput support in widgets
2015-03-25 18:04:15 -04:00

66 lines
1.2 KiB
Go

// Copyright 2015 Zack Guo <gizak@icloud.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import tm "github.com/nsf/termbox-go"
import rw "github.com/mattn/go-runewidth"
/* ---------------Port from termbox-go --------------------- */
// Attribute is printable cell's color and style.
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 > w {
return []rune(rw.Truncate(s, w, dot))
}
return str2runes(s) //[]rune(rw.Truncate(s, w, ""))
}
func strWidth(s string) int {
return rw.StringWidth(s)
}
func charWidth(ch rune) int {
return rw.RuneWidth(ch)
}