示例#1
0
func (ui *NcurseUi) Handle(input int) {
	if action, ok := goncurses.DriverActions[goncurses.Key(input)]; ok && ui.menu != nil {
		ui.menu.Driver(action)
	}
	ui.menuBar.Refresh()
	ui.contents.Refresh()
}
示例#2
0
文件: hncli.go 项目: kawakami-o3/hn
func (h *hncli) Run() {
	for !h.finished {
		c := h.root.GetChar()

		if c == 127 {
			c = goncurses.Key(goncurses.KEY_BACKSPACE)
		}

		ch := goncurses.KeyString(c)

		h.handler(ch)
	}
}
示例#3
0
func main() {
	var active int
	menu := []string{"Choice 1", "Choice 2", "Choice 3", "Choice 4", "Exit"}

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

	gc.Raw(true)
	gc.Echo(false)
	gc.Cursor(0)
	stdscr.Keypad(true)

	y, x := 5, 2

	win, err := gc.NewWindow(HEIGHT, WIDTH, y, x)
	if err != nil {
		log.Fatal("new_window:", err)
	}
	stdscr.MovePrint(0, 0, "Use up/down arrow keys, enter to "+
		"select or 'q' to quit")
	stdscr.MovePrint(1, 0, "You may also left mouse click on an entry to select")
	stdscr.Refresh()

	printmenu(win, menu, active)

	// Check to see if the Mouse is available. This function was not available
	// in older versions of ncurses (5.7 and older) and may return false even
	// if the mouse is in fact avaiable for use.
	if gc.MouseOk() {
		stdscr.MovePrint(3, 0, "WARN: Mouse support not detected.")
	}

	// Adjust the default mouse-click sensitivity to make it more responsive
	gc.MouseInterval(50)

	// If, for example, you are temporarily disabling the mouse or are
	// otherwise altering mouse button detection temporarily, you could
	// pass a pointer to a MouseButton object as the 2nd argument to
	// record that information. Invocation may look something like:

	var prev gc.MouseButton
	gc.MouseMask(gc.M_B1_PRESSED, nil) // only detect left mouse clicks
	gc.MouseMask(gc.M_ALL, &prev)      // temporarily enable all mouse clicks
	gc.MouseMask(prev, nil)            // change it back

	for {
		ch := stdscr.GetChar()
		switch ch {
		case 'q':
			return
		case gc.KEY_UP:
			if active == 0 {
				active = len(menu) - 1
			} else {
				active -= 1
			}
		case gc.KEY_DOWN:
			if active == len(menu)-1 {
				active = 0
			} else {
				active += 1
			}
		case gc.KEY_MOUSE:
			/* pull the mouse event off the queue */
			md := gc.GetMouse()
			new := getactive(x, y, md.X, md.Y, menu)
			if new != -1 {
				active = new
			}
			stdscr.MovePrintf(23, 0, "Choice #%d: %s selected", active+1,
				menu[active])
			stdscr.ClearToEOL()
			stdscr.Refresh()
		case gc.KEY_RETURN, gc.KEY_ENTER, gc.Key('\r'):
			stdscr.MovePrintf(23, 0, "Choice #%d: %s selected", active+1,
				menu[active])
			stdscr.ClearToEOL()
			stdscr.Refresh()
		default:
			stdscr.MovePrintf(23, 0, "Character pressed = %3d/%c", ch, ch)
			stdscr.ClearToEOL()
			stdscr.Refresh()
		}

		printmenu(win, menu, active)
	}
}
示例#4
0
// Returns an articleType that can be downloaded and displayed.
func ncurses(articles map[string][]articleType) (article articleType, err error) {
	// Initialize the standard screen
	stdscr, err := gc.Init()
	if err != nil {
		return
	}
	defer gc.End()
	h, w := stdscr.MaxYX()

	// Initialize the library
	gc.Raw(true)
	gc.Echo(false)
	gc.Cursor(0)
	stdscr.Keypad(true)

	// Build the user menu items
	userItems := make([]*gc.MenuItem, len(articles))
	i := 0
	for val := range articles {
		userItems[i], err = gc.NewItem(val, "")
		if err != nil {
			return
		}
		defer userItems[i].Free()
		i++
	}

	// Build the first user's article items
	articleItems := make([]*gc.MenuItem, len(articles[userItems[0].Name()]))
	i = 0
	for _, val := range articles[userItems[0].Name()] {
		articleItems[i], err = gc.NewItem(val.title, "")
		if err != nil {
			return
		}
		defer articleItems[i].Free()
		i++
	}

	// Create the user menu
	userMenu, userMenuWin, err := newFeatureMenu(userItems, h, w/2, 0, 0)
	if err != nil {
		return
	}
	// Post the user menu and refresh the user window
	userMenu.Post()
	defer userMenu.UnPost()
	userMenuWin.Refresh()

	// Create the article menu
	articleMenu, articleMenuWin, err := newFeatureMenu(articleItems, h/2, w/2, 0, w/2)
	if err != nil {
		return
	}
	// Post the article menu and refresh the article window
	articleMenu.Post()
	defer articleMenu.UnPost()
	articleMenuWin.Refresh()

	// Create the information window used to display article information
	aInfoWin, err := gc.NewWindow(h/2+1, w/2, h/2, w/2+1)
	if err != nil {
		return
	}
	displayInfo(aInfoWin, 0, 0, userItems, articles)

	active := 0
	activeA := 0
	currentMenuWin := userMenuWin
	currentMenu := userMenu
	for {
		gc.Update()
		ch := currentMenuWin.GetChar()
		switch ch {
		case 'q':
			return
		case gc.KEY_UP:
			if currentMenu == userMenu {
				if active != 0 {
					active--
					articleItems = make([]*gc.MenuItem, len(articles[userItems[active].Name()]))
					i = 0
					for _, val := range articles[userItems[active].Name()] {
						articleItems[i], _ = gc.NewItem(val.title, "")
						defer articleItems[i].Free()
						i++
					}
					articleMenu.UnPost()
					articleMenu.SetItems(articleItems)
					articleMenu.Post()
					articleMenuWin.Refresh()
					displayInfo(aInfoWin, active, activeA, userItems, articles)
				}
			} else {
				if activeA != 0 {
					activeA--
					displayInfo(aInfoWin, active, activeA, userItems, articles)
				}
			}
			currentMenu.Driver(gc.DriverActions[ch])
		case gc.KEY_DOWN:
			if currentMenu == userMenu {
				if active != len(userItems)-1 {
					active++
					articleItems = make([]*gc.MenuItem, len(articles[userItems[active].Name()]))
					i = 0
					for _, val := range articles[userItems[active].Name()] {
						articleItems[i], _ = gc.NewItem(val.title, "")
						defer articleItems[i].Free()
						i++
					}
					articleMenu.UnPost()
					articleMenu.SetItems(articleItems)
					articleMenu.Post()
					articleMenuWin.Refresh()
					displayInfo(aInfoWin, active, activeA, userItems, articles)
				}
			} else {
				if activeA != len(articleItems)-1 {
					activeA++
					aInfoWin.MovePrint(1, 1, "Auteur : ", userItems[active].Name())
					aInfoWin.Refresh()
					displayInfo(aInfoWin, active, activeA, userItems, articles)
				}
			}
			currentMenu.Driver(gc.DriverActions[ch])
		case gc.KEY_LEFT:
			// If the LEFT key is pressed, then set the active menu and active
			// menu window to the user ones. Also resets the current article counter
			if currentMenu == articleMenu {
				currentMenu = userMenu
				currentMenuWin = userMenuWin
				activeA = 0
			}
		case gc.KEY_RIGHT:
			// If the RIGHT key is pressed, then set the active menu and active
			// menu window to the article one.
			if currentMenu == userMenu {
				currentMenu = articleMenu
				currentMenuWin = articleMenuWin
			}
		case gc.KEY_ENTER, gc.KEY_RETURN, gc.Key('\r'):
			// If one of the Enter/Return key is pressed, depending on the current
			// menu, switch to the article menu or start downloading the selected
			// article.
			if currentMenu == userMenu {
				currentMenu = articleMenu
				currentMenuWin = articleMenuWin
				activeA = 0
			} else {
				article = articles[userItems[active].Name()][activeA]
				return
			}
		default:
			currentMenu.Driver(gc.DriverActions[ch])
		}
	}
}