75 lines
1.3 KiB
Go
75 lines
1.3 KiB
Go
// +build ignore
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package main
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import (
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"fmt"
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"log"
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"math"
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"math/rand"
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"time"
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ui "git.tebitea.media/sashakoshka/termui/v3"
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"git.tebitea.media/sashakoshka/termui/v3/widgets"
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)
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var run = true
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func main() {
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if err := ui.Init(); err != nil {
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log.Fatalf("failed to initialize termui: %v", 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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pc := widgets.NewPieChart()
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pc.Title = "Pie Chart"
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pc.SetRect(5, 5, 70, 36)
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pc.Data = []float64{.25, .25, .25, .25}
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pc.AngleOffset = -.5 * math.Pi
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pc.LabelFormatter = func(i int, v float64) string {
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return fmt.Sprintf("%.02f", v)
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}
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pause := func() {
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run = !run
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if run {
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pc.Title = "Pie Chart"
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} else {
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pc.Title = "Pie Chart (Stopped)"
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}
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ui.Render(pc)
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}
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ui.Render(pc)
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uiEvents := ui.PollEvents()
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ticker := time.NewTicker(time.Second).C
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for {
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select {
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case e := <-uiEvents:
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switch e.ID {
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case "q", "<C-c>":
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return
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case "s":
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pause()
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}
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case <-ticker:
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if run {
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pc.Data, pc.AngleOffset = randomDataAndOffset()
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ui.Render(pc)
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}
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}
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}
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}
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