75 lines
1.2 KiB
Go
75 lines
1.2 KiB
Go
// +build ignore
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package main
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import (
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"fmt"
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"math"
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"math/rand"
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"time"
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ui "github.com/gizak/termui"
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)
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func main() {
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err := ui.Init()
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if err != nil {
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panic(err)
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}
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defer ui.Close()
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rand.Seed(time.Now().UTC().UnixNano())
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randomDataAndOffset := func() (data []float64, offset float64) {
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noSlices := 1 + rand.Intn(5)
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data = make([]float64, noSlices)
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for i := range data {
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data[i] = rand.Float64()
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}
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offset = 2.0 * math.Pi * rand.Float64()
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return
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}
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run := true
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pc := ui.NewPieChart()
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pc.BorderLabel = "Pie Chart"
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pc.Width = 70
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pc.Height = 36
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pc.Data = []float64{.25, .25, .25, .25}
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pc.Offset = -.5 * math.Pi
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pc.Label = func(i int, v float64) string {
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return fmt.Sprintf("%.02f", v)
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}
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drawTicker := time.NewTicker(time.Second)
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drawTickerCount := 1
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go func() {
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for {
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if run {
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pc.Data, pc.Offset = randomDataAndOffset()
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ui.Render(pc)
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}
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drawTickerCount++
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<-drawTicker.C
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}
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}()
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ui.Handle("s", func(ui.Event) {
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run = !run
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if run {
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pc.BorderLabel = "Pie Chart"
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} else {
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pc.BorderLabel = "Pie Chart (Stopped)"
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}
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ui.Render(pc)
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})
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ui.Handle("q", func(ui.Event) {
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ui.StopLoop()
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})
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ui.Render(pc)
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ui.Loop()
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}
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