termui/widgets/list.go

53 lines
1.2 KiB
Go

// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package widgets
import (
"image"
. "github.com/gizak/termui"
)
type List struct {
Block
Rows []string
Wrap bool
TextStyle Style
}
func NewList() *List {
return &List{
Block: *NewBlock(),
TextStyle: Theme.List.Text,
}
}
func (self *List) Draw(buf *Buffer) {
self.Block.Draw(buf)
point := self.Inner.Min
for row := 0; row < len(self.Rows) && point.Y < self.Inner.Max.Y; row++ {
cells := ParseText(self.Rows[row], self.TextStyle)
if self.Wrap {
cells = WrapCells(cells, uint(self.Inner.Dx()))
}
for j := 0; j < len(cells) && point.Y < self.Inner.Max.Y; j++ {
if cells[j].Rune == '\n' {
point = image.Pt(self.Inner.Min.X, point.Y+1)
} else {
if point.X+1 == self.Inner.Max.X+1 && len(cells) > self.Inner.Dx() {
buf.SetCell(NewCell(DOTS, cells[j].Style), point.Add(image.Pt(-1, 0)))
break
} else {
buf.SetCell(cells[j], point)
point = point.Add(image.Pt(1, 0))
}
}
}
point = image.Pt(self.Inner.Min.X, point.Y+1)
}
}