87 lines
1.4 KiB
Go
87 lines
1.4 KiB
Go
package main
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import (
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. "github.com/gbin/goncurses"
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"log"
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)
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const (
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HEIGHT = 10
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WIDTH = 30
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)
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func main() {
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var active int
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menu := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4", "Exit"}
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stdscr, err := Init()
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if err != nil {
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log.Fatal(err)
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}
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defer End()
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Raw(true)
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Echo(false)
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Cursor(0)
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stdscr.Clear()
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stdscr.Keypad(true)
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my, mx := stdscr.MaxYX()
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y, x := 2, (mx/2)-(WIDTH/2)
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win, _ := NewWindow(HEIGHT, WIDTH, y, x)
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win.Keypad(true)
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stdscr.Print("Use arrow keys to go up and down, Press enter to select")
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stdscr.Refresh()
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printmenu(win, menu, active)
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for {
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ch := stdscr.GetChar()
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switch Key(ch) {
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case 'q':
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return
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case KEY_UP:
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if active == 0 {
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active = len(menu) - 1
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} else {
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active -= 1
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}
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case KEY_DOWN:
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if active == len(menu)-1 {
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active = 0
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} else {
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active += 1
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}
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case KEY_RETURN, KEY_ENTER, Key('\r'):
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stdscr.MovePrintf(my-2, 0, "Choice #%d: %s selected",
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active,
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menu[active])
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stdscr.ClearToEOL()
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stdscr.Refresh()
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default:
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stdscr.MovePrintf(my-2, 0, "Character pressed = %3d/%c",
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ch, ch)
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stdscr.ClearToEOL()
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stdscr.Refresh()
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}
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printmenu(win, menu, active)
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}
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}
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func printmenu(w *Window, menu []string, active int) {
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y, x := 2, 2
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w.Box(0, 0)
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for i, s := range menu {
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if i == active {
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w.AttrOn(A_REVERSE)
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w.MovePrint(y+i, x, s)
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w.AttrOff(A_REVERSE)
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} else {
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w.MovePrint(y+i, x, s)
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}
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}
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w.Refresh()
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}
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