Merge pull request #35 from Matt3o12/gauge-label

Gauge custom percentage label
This commit is contained in:
Zack Guo 2015-04-21 12:21:15 -04:00
commit c7e9e645d4
4 changed files with 52 additions and 13 deletions

View File

@ -1,4 +1,4 @@
# termui [![Build Status](https://travis-ci.org/gizak/termui.svg)](https://travis-ci.org/gizak/termui) [![Doc Status](https://godoc.org/github.com/gizak/termui?status.png)](https://godoc.org/github.com/gizak/termui)
# termui [![Build Status](https://travis-ci.org/gizak/termui.svg?branch=master)](https://travis-ci.org/gizak/termui) [![Doc Status](https://godoc.org/github.com/gizak/termui?status.png)](https://godoc.org/github.com/gizak/termui)
---

View File

@ -47,7 +47,16 @@ func main() {
g1.Border.FgColor = termui.ColorWhite
g1.Border.LabelFgColor = termui.ColorMagenta
termui.Render(g0, g1, g2)
g3 := termui.NewGauge()
g3.Percent = 50
g3.Width = 50
g3.Height = 3
g3.Y = 11
g3.Border.Label = "Gauge with custom label"
g3.Label = "{{percent}}% (100MBs free)"
g3.LabelAlign = termui.AlignRight
termui.Render(g0, g1, g2, g3)
<-termui.EventCh()
}

Binary file not shown.

Before

Width:  |  Height:  |  Size: 29 KiB

After

Width:  |  Height:  |  Size: 32 KiB

View File

@ -4,7 +4,10 @@
package termui
import "strconv"
import (
"strconv"
"strings"
)
// Gauge is a progress bar like widget.
// A simple example:
@ -17,11 +20,24 @@ import "strconv"
g.BarColor = termui.ColorRed
g.PercentColor = termui.ColorBlue
*/
// Align is the position of the gauge's label.
type Align int
// All supported positions.
const (
AlignLeft Align = iota
AlignCenter
AlignRight
)
type Gauge struct {
Block
Percent int
BarColor Attribute
PercentColor Attribute
Label string
LabelAlign Align
}
// NewGauge return a new gauge with current theme.
@ -29,7 +45,11 @@ func NewGauge() *Gauge {
g := &Gauge{
Block: *NewBlock(),
PercentColor: theme.GaugePercent,
BarColor: theme.GaugeBar}
BarColor: theme.GaugeBar,
Label: "{{percent}}%",
LabelAlign: AlignCenter,
}
g.Width = 12
g.Height = 5
return g
@ -39,14 +59,8 @@ func NewGauge() *Gauge {
func (g *Gauge) Buffer() []Point {
ps := g.Block.Buffer()
w := g.Percent * g.innerWidth / 100
s := strconv.Itoa(g.Percent) + "%"
rs := str2runes(s)
prx := g.innerX + g.innerWidth/2 - 1
pry := g.innerY + g.innerHeight/2
// plot bar
w := g.Percent * g.innerWidth / 100
for i := 0; i < g.innerHeight; i++ {
for j := 0; j < w; j++ {
p := Point{}
@ -62,13 +76,28 @@ func (g *Gauge) Buffer() []Point {
}
// plot percentage
s := strings.Replace(g.Label, "{{percent}}", strconv.Itoa(g.Percent), -1)
pry := g.innerY + g.innerHeight/2
rs := str2runes(s)
var pos int
switch g.LabelAlign {
case AlignLeft:
pos = 0
case AlignCenter:
pos = (g.innerWidth - strWidth(s)) / 2
case AlignRight:
pos = g.innerWidth - strWidth(s)
}
for i, v := range rs {
p := Point{}
p.X = prx + i
p.X = 1 + pos + i
p.Y = pry
p.Ch = v
p.Fg = g.PercentColor
if w > g.innerWidth/2-1+i {
if w > pos+i {
p.Bg = g.BarColor
if p.Bg == ColorDefault {
p.Bg |= AttrReverse
@ -77,6 +106,7 @@ func (g *Gauge) Buffer() []Point {
} else {
p.Bg = g.Block.BgColor
}
ps = append(ps, p)
}
return g.Block.chopOverflow(ps)