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tview/demos/presentation/flex.go

39 lines
1.3 KiB
Go

package main
import (
"github.com/gdamore/tcell/v2"
"github.com/rivo/tview"
)
// Flex demonstrates flexbox layout.
func Flex(nextSlide func()) (title string, content tview.Primitive) {
modalShown := false
pages := tview.NewPages()
flex := tview.NewFlex().
AddItem(tview.NewBox().SetBorder(true).SetTitle("Flexible width, twice of middle column"), 0, 2, true).
AddItem(tview.NewFlex().
SetDirection(tview.FlexRow).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Flexible width"), 0, 1, false).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Fixed height"), 15, 1, false).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Flexible height"), 0, 1, false), 0, 1, false).
AddItem(tview.NewBox().SetBorder(true).SetTitle("Fixed width"), 30, 1, false)
flex.SetInputCapture(func(event *tcell.EventKey) *tcell.EventKey {
if modalShown {
nextSlide()
modalShown = false
} else {
pages.ShowPage("modal")
modalShown = true
}
return event
})
modal := tview.NewModal().
SetText("Resize the window to see the effect of the flexbox parameters").
AddButtons([]string{"Ok"}).SetDoneFunc(func(buttonIndex int, buttonLabel string) {
pages.HidePage("modal")
})
pages.AddPage("flex", flex, true, true).
AddPage("modal", modal, false, false)
return "Flex", pages
}