Terminal-based user interface toolkit
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1.9 KiB

package main
import "code.rocketnine.space/tslocum/cview"
// Introduction returns a cview.List with the highlights of the cview package.
func Introduction(nextSlide func()) (title string, info string, content cview.Primitive) {
list := cview.NewList()
listText := [][]string{
{"A Go package for terminal based UIs", "with a special focus on rich interactive widgets"},
{"Based on github.com/gdamore/tcell", "Supports Linux, FreeBSD, MacOS and Windows"},
{"Designed to be simple", `"Hello world" is less than 20 lines of code`},
{"Good for data entry", `For charts, use "termui" - for low-level views, use "gocui" - ...`},
{"Supports context menus", "Right click on one of these items or press Alt+Enter"},
{"Extensive documentation", "Demo code is available for each widget"},
}
reset := func() {
list.Clear()
for i, itemText := range listText {
item := cview.NewListItem(itemText[0])
item.SetSecondaryText(itemText[1])
item.SetShortcut(rune('1' + i))
item.SetSelectedFunc(nextSlide)
list.AddItem(item)
}
list.ContextMenuList().SetItemEnabled(3, false)
}
list.AddContextItem("Delete item", 'i', func(index int) {
list.RemoveItem(index)
if list.GetItemCount() == 0 {
list.ContextMenuList().SetItemEnabled(0, false)
list.ContextMenuList().SetItemEnabled(1, false)
}
list.ContextMenuList().SetItemEnabled(3, true)
})
list.AddContextItem("Delete all", 'a', func(index int) {
list.Clear()
list.ContextMenuList().SetItemEnabled(0, false)
list.ContextMenuList().SetItemEnabled(1, false)
list.ContextMenuList().SetItemEnabled(3, true)
})
list.AddContextItem("", 0, nil)
list.AddContextItem("Reset", 'r', func(index int) {
reset()
list.ContextMenuList().SetItemEnabled(0, true)
list.ContextMenuList().SetItemEnabled(1, true)
list.ContextMenuList().SetItemEnabled(3, false)
})
reset()
return "Introduction", listInfo, Center(80, 12, list)
}