mirror of https://github.com/rivo/tview.git
64 lines
1.7 KiB
Go
64 lines
1.7 KiB
Go
package main
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import (
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"fmt"
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"strings"
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"github.com/gdamore/tcell/v2"
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"github.com/rivo/tview"
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)
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const logo = `
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__ _
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/ /__ __(_)__ _ __
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/ __/ | / / / _ \ | /| / /
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/ /_ | |/ / / __/ |/ |/ /
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\__/ |___/_/\___/|__/|__/
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`
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const (
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subtitle = `tview - Rich Widgets for Terminal UIs`
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navigation = `[yellow]Ctrl-N[-]: Next slide [yellow]Ctrl-P[-]: Previous slide [yellow]Ctrl-C[-]: Exit`
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mouse = `(or use your mouse)`
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)
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// Cover returns the cover page.
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func Cover(nextSlide func()) (title string, content tview.Primitive) {
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// What's the size of the logo?
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lines := strings.Split(logo, "\n")
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logoWidth := 0
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logoHeight := len(lines)
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for _, line := range lines {
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if len(line) > logoWidth {
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logoWidth = len(line)
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}
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}
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logoBox := tview.NewTextView().
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SetTextColor(tcell.ColorGreen).
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SetDoneFunc(func(key tcell.Key) {
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nextSlide()
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})
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fmt.Fprint(logoBox, logo)
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// Create a frame for the subtitle and navigation infos.
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frame := tview.NewFrame(tview.NewBox()).
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SetBorders(0, 0, 0, 0, 0, 0).
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AddText(subtitle, true, tview.AlignCenter, tcell.ColorWhite).
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AddText("", true, tview.AlignCenter, tcell.ColorWhite).
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AddText(navigation, true, tview.AlignCenter, tcell.ColorDarkMagenta).
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AddText(mouse, true, tview.AlignCenter, tcell.ColorDarkMagenta)
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// Create a Flex layout that centers the logo and subtitle.
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flex := tview.NewFlex().
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SetDirection(tview.FlexRow).
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AddItem(tview.NewBox(), 0, 7, false).
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AddItem(tview.NewFlex().
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AddItem(tview.NewBox(), 0, 1, false).
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AddItem(logoBox, logoWidth, 1, true).
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AddItem(tview.NewBox(), 0, 1, false), logoHeight, 1, true).
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AddItem(frame, 0, 10, false)
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return "Start", flex
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}
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