Golang gtk.Init函数代码示例

func main() {
	// Initialize GTK without parsing any command line arguments.
	gtk.Init(nil)

	// Create a new toplevel window, set its title, and connect it to the
	// "destroy" signal to exit the GTK main loop when it is destroyed.
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Simple Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new label widget to show in the window.
	l, err := gtk.LabelNew("Hello, gotk3!")
	if err != nil {
		log.Fatal("Unable to create label:", err)
	}

	// Add the label to the window.
	win.Add(l)

	// Set the default window size.
	win.SetDefaultSize(800, 600)

	// Recursively show all widgets contained in this window.
	win.ShowAll()

	// Begin executing the GTK main loop.  This blocks until
	// gtk.MainQuit() is run.
	gtk.Main()
}

func Example() {
	gtk.Init(nil)
	go func() {
		runtime.LockOSThread()
		gtk.Main()
	}()

	ctx := webloop.New()
	view := ctx.NewView()
	defer view.Close()
	view.Open("http://google.com")
	err := view.Wait()
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to load URL: %s", err)
		os.Exit(1)
	}
	res, err := view.EvaluateJavaScript("document.title")
	if err != nil {
		fmt.Fprintf(os.Stderr, "Failed to run JavaScript: %s", err)
		os.Exit(1)
	}
	fmt.Printf("JavaScript returned: %q\n", res)
	// output:
	// JavaScript returned: "Google"
}

func main() {
	// Initialize GTK without parsing any command line arguments.
	gtk.Init(nil)

	// Create a new toplevel window, set its title, and connect it to the
	// "destroy" signal to exit the GTK main loop when it is destroyed.
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Simple Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new socket:
	s, err := gtkx.SocketNew()
	if err != nil {
		log.Fatal("Unable to create socket:", err)
	}

	//Adding the socket to the window:
	win.Add(s)

	// Getting the socketId:
	sId := s.GetId()
	fmt.Printf("Our socket: %v\n", sId)

	//Building a Plug for our Socket:
	p, err := gtkx.PlugNew(sId)
	if err != nil {
		log.Fatal("Unable to create plug:", err)
	}

	//Building a Button for our Plug:
	b, err := gtk.ButtonNewWithLabel("Click me .)")
	if err != nil {
		log.Fatal("Unable to create button:", err)
	}

	//Click events for the Button:
	b.Connect("clicked", func() {
		fmt.Printf("Yeah, such clicks!\n")
	})

	//Adding the Button to the Plug:
	p.Add(b)
	//Displaying the Plug:
	p.ShowAll()

	// Set the default window size.
	win.SetDefaultSize(800, 600)

	// Recursively show all widgets contained in this window.
	win.ShowAll()

	// Begin executing the GTK main loop.  This blocks until
	// gtk.MainQuit() is run.
	gtk.Main()
}

func init() {
	gtk.Init(nil)
	go func() {
		runtime.LockOSThread()
		gtk.Main()
	}()
}

// StartGTK ensures that the GTK+ main loop has started. If it has already been
// started by StartGTK, it will not start it again. If another goroutine is
// already running the GTK+ main loop, StartGTK's behavior is undefined.
func (h *StaticRenderer) StartGTK() {
	startGTKOnce.Do(func() {
		gtk.Init(nil)
		go func() {
			runtime.LockOSThread()
			gtk.Main()
		}()
	})
}

func main() {
	/*
	   We set an environment variable so that we don't get bothered by xterm accessibility warnings
	   like "** (xterm:16917): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-QznzMfGEXB: Connection refused"
	   See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=15154
	*/
	os.Setenv("NO_AT_BRIDGE", "1")

	// Initialize GTK without parsing any command line arguments.
	gtk.Init(nil)

	// Create a new toplevel window, set its title, and connect it to the
	// "destroy" signal to exit the GTK main loop when it is destroyed.
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.SetTitle("Simple Example")
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	// Create a new socket:
	s, err := gtkx.SocketNew()
	if err != nil {
		log.Fatal("Unable to create socket:", err)
	}

	//Adding the socket to the window:
	win.Add(s)

	// Getting the socketId:
	sId := s.GetId()
	fmt.Printf("Our socket: %v\n", sId)

	// Embedding something in the socket:
	xterm := exec.Command("xterm", "-into", gtkx.WindowIdToString(sId))

	go func() {
		xterm.Run()
	}()

	// Set the default window size.
	win.SetDefaultSize(800, 600)

	// Recursively show all widgets contained in this window.
	win.ShowAll()

	// Begin executing the GTK main loop.  This blocks until
	// gtk.MainQuit() is run.
	gtk.Main()
}

func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	win.Add(windowWidget())

	// Native GTK is not thread safe, and thus, gotk3's GTK bindings may not
	// be used from other goroutines.  Instead, glib.IdleAdd() must be used
	// to add a function to run in the GTK main loop when it is in an idle
	// state.
	//
	// Two examples of using glib.IdleAdd() are shown below.  The first runs
	// a user created function, LabelSetTextIdle, and passes it two
	// arguments for a label and the text to set it with.  The second calls
	// (*gtk.Label).SetText directly, passing in only the text as an
	// argument.
	//
	// If the function passed to glib.IdleAdd() returns one argument, and
	// that argument is a bool, this return value will be used in the same
	// manner as a native g_idle_add() call.  If this return value is false,
	// the function will be removed from executing in the GTK main loop's
	// idle state.  If the return value is true, the function will continue
	// to execute when the GTK main loop is in this state.
	go func() {
		for {
			time.Sleep(time.Second)
			s := fmt.Sprintf("Set a label %d time(s)!", nSets)
			_, err := glib.IdleAdd(LabelSetTextIdle, topLabel, s)
			if err != nil {
				log.Fatal("IdleAdd() failed:", err)
			}
			nSets++
			s = fmt.Sprintf("Set a label %d time(s)!", nSets)
			_, err = glib.IdleAdd(bottomLabel.SetText, s)
			if err != nil {
				log.Fatal("IdleAdd() failed:", err)
			}
			nSets++
		}
	}()

	win.ShowAll()
	gtk.Main()
}

func main() {
	goline.LoggerPrintln("Start Goline.")
	gtk.Init(&os.Args)
	css.SetupCss()
	if goline.Autologin && goline.AuthToken != "" {
		autologinWindow := NewAutologinWindow()
		autologinWindow.window.ShowAll()
		autologinWindow.Login()
	} else {
		loginWindow := NewLoginWindow()
		loginWindow.window.ShowAll()
	}
	gtk.Main()
}

func main() {
	gtk.Init(nil)

	// The first thing ever done is to create a GTK error dialog to
	// show any errors to the user.  If any fatal errors occur before
	// the main application window is shown, they will be shown using
	// this dialog.
	PreGUIErrorDialog = gtk.MessageDialogNew(nil, 0, gtk.MESSAGE_ERROR,
		gtk.BUTTONS_OK, "An unknown error occured.")
	PreGUIErrorDialog.SetPosition(gtk.WIN_POS_CENTER)
	PreGUIErrorDialog.Connect("destroy", func() {
		os.Exit(1)
	})

	tcfg, _, err := loadConfig()
	if err != nil {
		if e, ok := err.(*flags.Error); !ok || e.Type != flags.ErrHelp {
			PreGUIError(fmt.Errorf("Cannot open configuration:\n%v", err))
		} else {
			os.Exit(1)
		}
	}
	cfg = tcfg

	// Load help dialog on first open.  Use current and previous versions
	// can be used to control what level of new information must be
	// displayed.
	//
	//
	// As currently implemented, if current > previous version, or if
	// there are any errors opening and reading the file, any and all
	// tutorial information is displayed.
	prevRunVers, err := GetPreviousAppVersion(cfg)
	if err != nil || version.NewerThan(*prevRunVers) {
		d, err := CreateTutorialDialog(nil)
		if err != nil {
			// Nothing to show.
			PreGUIError(fmt.Errorf("Cannot create tutorial dialog:\n%v", err))
		}
		d.ShowAll()
		d.Run()
	} else {
		// No error or tutorial dialogs required, so create and show
		// main application window.
		go StartMainApplication()
	}

	gtk.Main()
}

func main() {
	gtk.Init(nil)

	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		log.Fatal("Unable to create window:", err)
	}
	win.Connect("destroy", func() {
		gtk.MainQuit()
	})

	win.Add(windowWidget())
	win.ShowAll()

	gtk.Main()
}

// RunGUI initializes GTK, creates the toplevel window and all child widgets,
// opens the pages for the default session, and runs the Glib main event loop.
// This function blocks until the toplevel window is destroyed and the event
// loop exits.
func RunGUI() {
	gtk.Init(nil)

	window, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	window.Connect("destroy", func() {
		gtk.MainQuit()
	})
	window.SetDefaultGeometry(defaultWinWidth, defaultWinHeight)
	window.Show()

	wc := wk2.DefaultWebContext()
	wc.SetProcessModel(wk2.ProcessModelMultipleSecondaryProcesses)

	session := []PageDescription{HomePage}
	pm := NewPageManager(session)
	window.Add(pm)
	pm.Show()

	gtk.Main()
}

func main() {
	gtk.Init(nil)

	win := setupWindow()
	box, _ := gtk.BoxNew(gtk.ORIENTATION_VERTICAL, 0)
	win.Add(box)

	tv := setupTextView(box)

	props := []*BoolProperty{
		&BoolProperty{"cursor visible", (*tv).GetCursorVisible, (*tv).SetCursorVisible},
		&BoolProperty{"editable", (*tv).GetEditable, (*tv).SetEditable},
		&BoolProperty{"overwrite", (*tv).GetOverwrite, (*tv).SetOverwrite},
		&BoolProperty{"accepts tab", (*tv).GetAcceptsTab, (*tv).SetAcceptsTab},
	}

	setupPropertyCheckboxes(tv, box, props)

	win.ShowAll()

	gtk.Main()
}

func main() {
	gtk.Init(nil)

	// gui boilerplate
	win, _ := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	da, _ := gtk.DrawingAreaNew()
	win.Add(da)
	win.SetTitle("Arrow keys")
	win.Connect("destroy", gtk.MainQuit)
	win.ShowAll()

	// Data
	unitSize := 20.0
	x := 0.0
	y := 0.0
	keyMap := map[uint]func(){
		KEY_LEFT:  func() { x-- },
		KEY_UP:    func() { y-- },
		KEY_RIGHT: func() { x++ },
		KEY_DOWN:  func() { y++ },
	}

	// Event handlers
	da.Connect("draw", func(da *gtk.DrawingArea, cr *cairo.Context) {
		cr.SetSourceRGB(0, 0, 0)
		cr.Rectangle(x*unitSize, y*unitSize, unitSize, unitSize)
		cr.Fill()
	})
	win.Connect("key-press-event", func(win *gtk.Window, ev *gdk.Event) {
		keyEvent := &gdk.EventKey{ev}
		if move, found := keyMap[keyEvent.KeyVal()]; found {
			move()
			win.QueueDraw()
		}
	})

	gtk.Main()
}

func New(engine *engine.Engine, plugins *PluginCollection) *Ui {
	gtk.Init(nil)

	ui := &Ui{
		engine:  engine,
		plugins: plugins,
		devices: map[string]*network.Device{},

		Available:       make(chan *network.Device),
		Unavailable:     make(chan *network.Device),
		RequestsPairing: make(chan *network.Device),
		Connected:       make(chan *network.Device),
		Disconnected:    make(chan *network.Device),

		Quit: make(chan bool),
	}

	ui.init()
	go gtk.Main()
	go ui.listen()

	return ui
}

// Displays image in a new Gtk window
// This function blocks until the window is closed
func displayImage(img image.Image) error {
	// Copy img into a new gdk.Pixbuf
	pixbuf, err := imageToPixbuf(img)
	if err != nil {
		return errors.New("Failed to create a pixbuf for image")
	}
	// Initialize GtkWindow
	gtk.Init(nil)
	win, err := gtk.WindowNew(gtk.WINDOW_TOPLEVEL)
	if err != nil {
		return errors.New("Failed to create new window")
	}
	win.Connect("destroy", func() { gtk.MainQuit() })
	// Create GtkImage widget from pixbuf
	gimg, err := gtk.ImageNewFromPixbuf(pixbuf)
	if err != nil {
		return errors.New("Failed to load image into window")
	}
	win.Add(gimg)
	win.ShowAll()
	gtk.Main()
	return nil
}