Golang goncurses.Echo函数代码示例

func (ui *NcurseUi) GetSecret(prompt string) (output string) {
	goncurses.Echo(false)
	output = ui.GetString(prompt)
	goncurses.Echo(true)

	return
}

func (ui *NcurseUi) GetCommand() (output int) {
	goncurses.Update()
	goncurses.Echo(false)
	output = int(ui.contents.GetChar())
	goncurses.Echo(true)

	return
}

//sets up the initial configuration of curses. Keeps code in main cleaner.
func configCurses(stdscr *gc.Window) {
	if !gc.HasColors() {
		log.Fatal("Example requires a colour capable terminal")
	}
	if err := gc.StartColor(); err != nil {
		log.Fatal("Starting Colors failed:", err)
	}
	gc.Echo(false)

	if err := gc.InitPair(1, gc.C_RED, gc.C_BLACK); err != nil {
		log.Fatal("InitPair failed: ", err)
	}
	gc.InitPair(2, gc.C_BLUE, gc.C_BLACK)
	gc.InitPair(3, gc.C_GREEN, gc.C_BLACK)
	gc.InitPair(4, gc.C_YELLOW, gc.C_BLACK)
	gc.InitPair(5, gc.C_CYAN, gc.C_BLACK)
	gc.InitPair(6, gc.C_MAGENTA, gc.C_WHITE)
	gc.InitPair(7, gc.C_MAGENTA, gc.C_BLACK)

	//set background color to black
	stdscr.SetBackground(gc.Char(' ') | gc.ColorPair(0))

	stdscr.Keypad(true)
	gc.Cursor(1)
	gc.CBreak(true)
	stdscr.Clear()
}

// Gets password from input
func getPass() string {
	gc.Echo(false)
	stdscr := gc.StdScr()
	var returnString []byte

	x := 0
	var c gc.Char
	var rawInput gc.Key
	for {
		rawInput = stdscr.GetChar()
		c = gc.Char(rawInput)
		if rawInput == gc.KEY_BACKSPACE || c == gc.Char(127) {
			if x != 0 {
				returnString = returnString[0 : len(returnString)-1]
				x--
			} else {
				continue
			}
		} else if rawInput == gc.KEY_RETURN {
			if x != 0 {
				return string(returnString)
			}
		} else if c > 31 && c < 127 {
			returnString = append(returnString, byte(c))
			x++
		} else {
			continue
		}
	}
}

func main() {
	stdscr, err := goncurses.Init()
	if err != nil {
		log.Fatal("init", err)
	}
	defer goncurses.End()

	goncurses.Raw(true)   // turn on raw "uncooked" input
	goncurses.Echo(false) // turn echoing of typed characters off
	goncurses.Cursor(0)   // hide cursor
	stdscr.Keypad(true)   // allow keypad input

	stdscr.Print("Press a key...")
	stdscr.Refresh()

	if ch := stdscr.GetChar(); ch == goncurses.KEY_F2 {
		stdscr.Print("The F2 key was pressed.")
	} else {
		stdscr.Print("The key pressed is: ")
		stdscr.AttrOn(goncurses.A_BOLD)
		stdscr.AddChar(goncurses.Char(ch))
		stdscr.AttrOff(goncurses.A_BOLD)
	}
	stdscr.Refresh()
	stdscr.GetChar()
}

func main() {
	stdscr, err := gc.Init()
	if err != nil {
		log.Fatal(err)
	}
	defer gc.End()

	gc.Echo(false)
	gc.CBreak(true)
	gc.Cursor(0)

	var panels [2]fp.FilePanel
	rows, cols := stdscr.MaxYX()
	height, width := rows, cols/2
	y, x := 0, 0
	activePanel := 0

	panels[0] = fp.FilePanel{Height: height, Width: width, Y: y, X: x, Directory: "./", Selected: 0, IsActive: true}
	panels[1] = fp.FilePanel{Height: height, Width: width, Y: y, X: x + width, Directory: "/home/kuzzmi/", Selected: 2, IsActive: false}

	panels[0].Draw()
	panels[1].Draw()

	gc.UpdatePanels()
	gc.Update()

	stdscr.Keypad(true)
	// stdscr.GetChar()

main:
	for {
		switch panels[activePanel].Panel.Window().GetChar() {
		case 'q':
			break main
		case gc.KEY_RETURN:
			panels[activePanel].Execute()
		case gc.KEY_TAB:
			panels[0].ToggleActivity()
			panels[1].ToggleActivity()
			gc.UpdatePanels()
			gc.Update()
			if activePanel == 0 {
				activePanel = 1
			} else {
				activePanel = 0
			}
		case 'u':
			panels[activePanel].GoUp()
		case 'k':
			panels[activePanel].Select(panels[activePanel].Selected - 1)
		case 'j':
			panels[activePanel].Select(panels[activePanel].Selected + 1)
		case 'i':
			panels[activePanel].HideHidden()
		}
	}
	stdscr.Delete()
}

func main() {
	stdscr, _ := gc.Init()
	defer gc.End()

	gc.StartColor()
	gc.CBreak(true)
	gc.Echo(true)
	stdscr.Keypad(true)
	stdscr.Print("Hit 'tab' to cycle through windows, 'q' to quit")

	gc.InitPair(1, gc.C_RED, gc.C_BLACK)
	gc.InitPair(2, gc.C_GREEN, gc.C_BLACK)
	gc.InitPair(3, gc.C_BLUE, gc.C_BLACK)
	gc.InitPair(4, gc.C_CYAN, gc.C_BLACK)

	var panels [3]*gc.Panel
	y, x := 4, 10

	for i := 0; i < 3; i++ {
		h, w := 10, 40
		title := "Window Number %d"

		window, _ := gc.NewWindow(h, w, y+(i*4), x+(i*10))
		window.Box(0, 0)
		window.MoveAddChar(2, 0, gc.ACS_LTEE)
		window.HLine(2, 1, gc.ACS_HLINE, w-2)
		window.MoveAddChar(2, w-1, gc.ACS_RTEE)
		window.ColorOn(int16(i + 1))
		window.MovePrintf(1, (w/2)-(len(title)/2), title, i+1)
		window.ColorOff(int16(i + 1))
		panels[i] = gc.NewPanel(window)

	}

	active := 2

	for {
		gc.UpdatePanels()
		gc.Update()

		switch stdscr.GetChar() {
		case 'q':
			return
		case gc.KEY_TAB:
			active += 1
			if active > 2 {
				active = 0
			}
			panels[active].Top()
		}
	}
}

func main() {
	stdscr, err := gc.Init()
	if err != nil {
		log.Fatal("init:", err)
	}
	defer gc.End()

	// HasColors can be used to determine whether the current terminal
	// has the capability of using colours. You could then chose whether or
	// not to use some other mechanism, like using A_REVERSE, instead
	if !gc.HasColors() {
		log.Fatal("Example requires a colour capable terminal")
	}

	// Must be called after Init but before using any colour related functions
	if err := gc.StartColor(); err != nil {
		log.Fatal(err)
	}

	gc.Echo(false)

	// Initialize a colour pair. Should only fail if an improper pair value
	// is given
	if err := gc.InitPair(1, gc.C_RED, gc.C_WHITE); err != nil {
		log.Fatal("InitPair failed: ", err)
	}
	gc.InitPair(2, gc.C_BLACK, gc.C_CYAN)

	stdscr.Println("Type any key to proceed and again to exit")

	// An example of trying to set an invalid color pair
	err = gc.InitPair(-1, gc.C_BLACK, gc.C_CYAN)
	stdscr.Println("An intentional error:", err)

	stdscr.Keypad(true)
	stdscr.MovePrint(12, 30, "Hello, World!!!")
	stdscr.Refresh()
	stdscr.GetChar()
	// Note that background doesn't just accept colours but will fill
	// any blank positions with the supplied character too. Note that newly
	// added text with spaces in it will have the blanks converted to the fill
	// character, if given
	stdscr.SetBackground(gc.Char('*') | gc.ColorPair(2))
	// ColorOn/Off is a shortcut to calling AttrOn/Off(gc.ColorPair(pair))
	stdscr.ColorOn(1)
	stdscr.MovePrint(13, 30, "Hello, World in Color!!!")
	stdscr.ColorOff(1)
	stdscr.Refresh()
	stdscr.GetChar()
}

func main() {
	stdscr, err := gc.Init()
	if err != nil {
		log.Fatal(err)
	}
	defer gc.End()

	gc.Cursor(0)
	gc.Echo(false)

	stdscr.Print("A reversed plus-minus symbol: ")
	stdscr.AddChar(gc.ACS_PLMINUS | gc.A_REVERSE)
	stdscr.Refresh()
	stdscr.GetChar()
}

func NewCursesView() (i view.Interface, err error) {
	v := new(CursesView)
	if v.win, err = cur.Init(); err != nil {
		return
	}
	cur.Echo(false)
	cur.Cursor(0)

	if err = v.initCursesColors(); err != nil {
		return
	}

	i = v
	return
}

func main() {
	stdscr, err := gc.Init()
	if err != nil {
		log.Fatal(err)
	}
	defer gc.End()

	gc.StartColor()
	gc.Echo(false)
	gc.Raw(true)

	var colours = []int16{gc.C_BLACK, gc.C_BLUE, gc.C_CYAN, gc.C_GREEN,
		gc.C_MAGENTA, gc.C_RED, gc.C_WHITE, gc.C_YELLOW}
	var attributes = []struct {
		attr gc.Char
		text string
	}{
		{gc.A_NORMAL, "normal"},
		{gc.A_STANDOUT, "standout"},
		{gc.A_UNDERLINE | gc.A_BOLD, "underline"},
		{gc.A_REVERSE, "reverse"},
		{gc.A_BLINK, "blink"},
		{gc.A_DIM, "dim"},
		{gc.A_BOLD, "bold"},
	}
	stdscr.MovePrint(0, 0, "Normal terminal colors: ")
	for i, c := range colours {
		gc.InitPair(int16(i), c, c)
		stdscr.ColorOn(int16(i))
		stdscr.AddChar(' ')
		stdscr.ColorOff(int16(i))
	}
	stdscr.MovePrint(1, 0, "Bold terminal colors:   ")
	stdscr.AttrOn(gc.A_BLINK)
	for i, _ := range colours {
		stdscr.ColorOn(int16(i))
		stdscr.AddChar(' ')
		stdscr.ColorOff(int16(i))
	}
	stdscr.AttrOff(gc.A_BLINK)
	stdscr.Move(2, 0)
	for _, a := range attributes {
		stdscr.AttrOn(a.attr)
		stdscr.Println(a.text)
		stdscr.AttrOff(a.attr)
	}
	stdscr.GetChar()
}

func initialize() {
	// catche SIGINT signals
	c := make(chan os.Signal, 1)
	signal.Notify(c, os.Interrupt)
	signal.Notify(c, syscall.SIGTERM)
	go func() {
		<-c
		shutdown()
	}()

	// Listen on key events
	if !OUT_BATCH {
		goncurses.Echo(false) // turn echoing of typed characters off
		goncurses.Cursor(0)   // hide cursor
		go func() {
			for true {
				ch := screen.GetChar()
				if ch == 'q' {
					shutdown()
				}
			}
		}()
	}

	// Activate devices according to user arguments
	if DEV_UUID {
		static.Initialize()
	}
	if DEV_CPU {
		cpu.Initialize()
	}
	if DEV_MEMORY {
		memory.Initialize()
	}
	if DEV_NETWORK {
		network.Initialize()
	}
	if DEV_DISK {
		disk.Initialize()
	}

	// create arrays for storing measurements
	virtualmachines = make(map[string]models.VirtualMachine)
	ppid2vmname = make(map[string]string)

	// first initial querying of measurements
	updateVirtualMachineLists()
}

func main() {
	stdscr, err := goncurses.Init()
	if err != nil {
		log.Fatal("init:", err)
	}
	defer goncurses.End()

	goncurses.Raw(true)
	goncurses.Echo(false)
	goncurses.Cursor(0)
	stdscr.Clear()
	stdscr.Keypad(true)

	menu_items := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4",
		"Exit"}
	items := make([]*goncurses.MenuItem, len(menu_items))
	for i, val := range menu_items {
		items[i], _ = goncurses.NewItem(val, "")
		defer items[i].Free()
	}

	menu, err := goncurses.NewMenu(items)
	if err != nil {
		stdscr.Print(err)
		return
	}
	defer menu.Free()

	menu.Post()

	stdscr.MovePrint(20, 0, "'q' to exit")
	stdscr.Refresh()

	for {
		goncurses.Update()
		ch := stdscr.GetChar()

		switch goncurses.KeyString(ch) {
		case "q":
			return
		case "down":
			menu.Driver(goncurses.REQ_DOWN)
		case "up":
			menu.Driver(goncurses.REQ_UP)
		}
	}
}

func main() {
	scr, err := gc.Init()
	if err != nil {
		log.Fatal("init:", err)
	}
	defer gc.End()

	gc.Echo(false)

	scr.Println("Type characters to have them appear on the screen.")
	scr.Println("Press 'q' to exit.")
	scr.Println()

	// Accept input concurrently via a goroutine and connect a channel
	in := make(chan gc.Char)
	ready := make(chan bool)
	go func(w *gc.Window, ch chan<- gc.Char) {
		for {
			// Block until all write operations are complete
			<-ready
			// Send typed character down the channel (which is blocking
			// in the main loop)
			ch <- gc.Char(w.GetChar())
		}
	}(scr, in)

	// Once a character has been received on the 'in' channel the
	// 'ready' channel will block until it recieves another piece of data.
	// This happens only once the received character has been written to
	// the screen. The 'in' channel then blocks on the next loop until
	// another 'true' is sent down the 'ready' channel signalling to the
	// input goroutine that it's okay to receive input
	for {
		var c gc.Char
		select {
		case c = <-in: // blocks while waiting for input from goroutine
			scr.Print(string(c))
			scr.Refresh()
		case ready <- true: // sends once above block completes
		}
		// Exit when 'q' is pressed
		if c == gc.Char('q') {
			break
		}
	}
}

func main() {
	stdscr, err := gc.Init()
	if err != nil {
		log.Fatal("init", err)
	}
	defer gc.End()

	if err := gc.StartColor(); err != nil {
		log.Fatal(err)
	}

	lines, cols := stdscr.MaxYX()

	gc.Raw(true)   // turn on raw "uncooked" input
	gc.Echo(false) // turn echoing of typed characters off
	gc.Cursor(0)   // hide cursor
	stdscr.Timeout(50)
	stdscr.Keypad(true) // allow keypad input

	gc.InitPair(1, gc.C_YELLOW, gc.C_BLACK)
	gc.InitPair(2, gc.C_RED, gc.C_BLACK)
	gc.InitPair(3, gc.C_GREEN, gc.C_BLACK)
	gc.InitPair(4, gc.C_BLUE, gc.C_BLACK)
	gc.InitPair(5, gc.C_WHITE, gc.C_BLACK)
	gc.InitPair(6, gc.C_BLACK, gc.C_BLACK)
	gc.InitPair(7, gc.C_MAGENTA, gc.C_BLACK)

	stdscr.SetBackground(gc.ColorPair(3))

	rand.Seed(time.Now().UTC().UnixNano())

	state := State{Money: 150}

	var build *Thing

	things := make([]Thing, 0, 20)
	var toUpdate int64 = 0
	lastTimestamp := int64(time.Nanosecond) * time.Now().UTC().UnixNano() / int64(time.Millisecond)

	frames := make(map[string][][]string)

	count := rand.Intn(15) + 25

	for i := 0; i < count; i++ {
		for {
			var kind Kind
			var pop int
			r := rand.Intn(2)

			switch r {
			case 0:
				kind = &SmallHouse{Frames: &frames}
				pop = 10
			case 1:
				kind = &House{Frames: &frames}
				pop = 40
			}

			house := &Thing{2 + rand.Intn(cols-8), 2 + rand.Intn(lines-8), kind}

			overlap := false
			for _, thing := range things {
				if house.Overlap(&thing) {
					overlap = true
					break
				}
			}

			if !overlap {
				things = append(things, *house)
				state.Population += pop
				break
			}
		}
	}

	var overlap bool
	var price float32
	showInfo := true

	for {
		now := int64(time.Nanosecond) * time.Now().UTC().UnixNano() / int64(time.Millisecond)
		delta := now - lastTimestamp
		lastTimestamp = now
		toUpdate -= delta

		c := stdscr.GetChar()

		switch c {
		case 'q':
			break
		case 'a':
			if build != nil && build.X > 0 {
				build.X--
			}
		case 'd':
			if build != nil && build.X+build.GetSize().X < cols {
				build.X++
			}
		case 'w':
//.........这里部分代码省略.........