forked from Mirrors/bubbletea
85 lines
1.5 KiB
Go
85 lines
1.5 KiB
Go
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package main
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import (
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"fmt"
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"os"
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"strings"
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"time"
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"github.com/charmbracelet/bubbles/progress"
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tea "github.com/charmbracelet/bubbletea"
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)
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const (
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fps = 60
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stepSize float64 = 1.0 / (float64(fps) * 2.0)
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padding = 2
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maxWidth = 80
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)
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func main() {
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prog, err := progress.NewModel(progress.WithScaledGradient("#FF7CCB", "#FDFF8C"))
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if err != nil {
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fmt.Println("Could not initialize progress model:", err)
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os.Exit(1)
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}
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if err = tea.NewProgram(example{progress: prog}).Start(); err != nil {
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fmt.Println("Oh no!", err)
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os.Exit(1)
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}
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}
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type tickMsg time.Time
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type example struct {
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percent float64
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progress *progress.Model
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}
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func (e example) Init() tea.Cmd {
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return tickCmd()
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}
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func (e example) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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switch msg := msg.(type) {
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case tea.KeyMsg:
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switch msg.String() {
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case "q", "ctrl+c":
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return e, tea.Quit
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default:
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return e, nil
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}
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case tea.WindowSizeMsg:
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e.progress.Width = msg.Width - padding*2 - 4
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if e.progress.Width > maxWidth {
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e.progress.Width = maxWidth
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}
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return e, nil
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case tickMsg:
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e.percent += stepSize
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if e.percent > 1.0 {
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e.percent = 1.0
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return e, tea.Quit
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}
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return e, tickCmd()
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default:
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return e, nil
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}
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}
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func (e example) View() string {
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pad := strings.Repeat(" ", padding)
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return "\n" + pad + e.progress.View(e.percent) + "\n\n"
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}
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func tickCmd() tea.Cmd {
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return tea.Tick(time.Second/fps, func(t time.Time) tea.Msg {
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return tickMsg(t)
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})
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}
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