func main() {
	gtk.Init(&os.Args)
	gdk.ThreadsInit()
	window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
	window.SetTitle("Twitter!")
	window.Connect("destroy", gtk.MainQuit)

	vbox := gtk.NewVBox(false, 1)

	scrolledwin := gtk.NewScrolledWindow(nil, nil)
	textview := gtk.NewTextView()
	textview.SetEditable(false)
	textview.SetCursorVisible(false)
	scrolledwin.Add(textview)
	vbox.Add(scrolledwin)

	buffer := textview.GetBuffer()

	tag := buffer.CreateTag("blue", map[string]string{
		"foreground": "#0000FF", "weight": "700"})
	button := gtk.NewButtonWithLabel("Update Timeline")
	button.SetTooltipMarkup("update <b>public timeline</b>")
	button.Clicked(func() {
		b, err := ioutil.ReadFile("settings.json")
		if err != nil {
			fmt.Println(`"settings.json" not found: `, err)
			return
		}
		var config map[string]string
		err = json.Unmarshal(b, &config)
		if err != nil {
			fmt.Println(`can't read "settings.json": `, err)
			return
		}
		client := &oauth.Client{
			Credentials: oauth.Credentials{
				config["ClientToken"], config["ClientSecret"]}}
		cred := &oauth.Credentials{
			config["AccessToken"], config["AccessSecret"]}

		gdk.ThreadsEnter()
		button.SetSensitive(false)
		gdk.ThreadsLeave()
		go func() {
			ts, err := twitterstream.Open(client, cred,
				"https://stream.twitter.com/1/statuses/filter.json",
				url.Values{"track": {"picplz,instagr"}})
			if err != nil {
				println(err.Error())
				return
			}
			for ts.Err() == nil {
				t := tweet{}
				if err := ts.UnmarshalNext(&t); err != nil {
					fmt.Println("error reading tweet: ", err)
					continue
				}
				var iter gtk.TextIter
				pixbufbytes, resp := readURL(t.User.ProfileImageUrl)
				gdk.ThreadsEnter()
				buffer.GetStartIter(&iter)
				if resp != nil {
					buffer.InsertPixbuf(&iter, bytes2pixbuf(pixbufbytes, resp.Header.Get("Content-Type")))
				}
				gdk.ThreadsLeave()
				gdk.ThreadsEnter()
				buffer.Insert(&iter, " ")
				buffer.InsertWithTag(&iter, t.User.ScreenName, tag)
				buffer.Insert(&iter, ":"+t.Text+"\n")
				gtk.MainIterationDo(false)
				gdk.ThreadsLeave()
			}
		}()
	})
	vbox.PackEnd(button, false, false, 0)

	window.Add(vbox)
	window.SetSizeRequest(800, 500)
	window.ShowAll()
	gdk.ThreadsEnter()
	gtk.Main()
	gdk.ThreadsLeave()
}
Exemple #2
0
func main() {
	gtk.Init(&os.Args)
	gdk.ThreadsInit()
	window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
	window.SetTitle("Twitter!")
	window.Connect("destroy", gtk.MainQuit)

	vbox := gtk.NewVBox(false, 1)

	scrolledwin := gtk.NewScrolledWindow(nil, nil)
	textview := gtk.NewTextView()
	textview.SetEditable(false)
	textview.SetCursorVisible(false)
	scrolledwin.Add(textview)
	vbox.Add(scrolledwin)

	buffer := textview.GetBuffer()

	tag := buffer.CreateTag("blue", map[string]string{
		"foreground": "#0000FF", "weight": "700"})
	button := gtk.NewButtonWithLabel("Update Timeline")
	button.SetTooltipMarkup("update <b>public timeline</b>")
	button.Clicked(func() {
		go func() {
			gdk.ThreadsEnter()
			button.SetSensitive(false)
			gdk.ThreadsLeave()
			r, err := http.Get("https://api.twitter.com/1/statuses/user_timeline.json?screen_name=go_nuts")
			if err == nil {
				var b []byte
				if r.ContentLength == -1 {
					b, err = ioutil.ReadAll(r.Body)
				} else {
					b = make([]byte, r.ContentLength)
					_, err = io.ReadFull(r.Body, b)
				}
				if err != nil {
					fmt.Println(err)
					return
				}
				var j interface{}
				err = json.NewDecoder(bytes.NewBuffer(b)).Decode(&j)
				if err != nil {
					fmt.Println(err)
					return
				}
				arr := j.([]interface{})
				for i := 0; i < len(arr); i++ {
					data := arr[i].(map[string]interface{})
					icon := data["user"].(map[string]interface{})["profile_image_url"].(string)
					var iter gtk.TextIter
					pixbufbytes, resp := readURL(icon)
					gdk.ThreadsEnter()
					buffer.GetEndIter(&iter)
					if resp != nil {
						buffer.InsertPixbuf(&iter, bytes2pixbuf(pixbufbytes, resp.Header.Get("Content-Type")))
					}
					gdk.ThreadsLeave()
					name := data["user"].(map[string]interface{})["screen_name"].(string)
					text := data["text"].(string)
					gdk.ThreadsEnter()
					buffer.Insert(&iter, " ")
					buffer.InsertWithTag(&iter, name, tag)
					buffer.Insert(&iter, ":"+text+"\n")
					gtk.MainIterationDo(false)
					gdk.ThreadsLeave()
				}
			} else {
				fmt.Println(err)
			}
			button.SetSensitive(true)
		}()
	})
	vbox.PackEnd(button, false, false, 0)

	window.Add(vbox)
	window.SetSizeRequest(800, 500)
	window.ShowAll()
	gdk.ThreadsEnter()
	gtk.Main()
	gdk.ThreadsLeave()
}
Exemple #3
0
func main() {
	var menuitem *gtk.MenuItem
	gtk.Init(nil)
	window := gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
	window.SetPosition(gtk.WIN_POS_CENTER)
	window.SetTitle("GTK Go!")
	window.SetIconName("gtk-dialog-info")
	window.Connect("destroy", func(ctx *glib.CallbackContext) {
		println("got destroy!", ctx.Data().(string))
		gtk.MainQuit()
	}, "foo")

	//--------------------------------------------------------
	// GtkVBox
	//--------------------------------------------------------
	vbox := gtk.NewVBox(false, 1)

	//--------------------------------------------------------
	// GtkMenuBar
	//--------------------------------------------------------
	menubar := gtk.NewMenuBar()
	vbox.PackStart(menubar, false, false, 0)

	//--------------------------------------------------------
	// GtkVPaned
	//--------------------------------------------------------
	vpaned := gtk.NewVPaned()
	vbox.Add(vpaned)

	//--------------------------------------------------------
	// GtkFrame
	//--------------------------------------------------------
	frame1 := gtk.NewFrame("Demo")
	framebox1 := gtk.NewVBox(false, 1)
	frame1.Add(framebox1)

	frame2 := gtk.NewFrame("Demo")
	framebox2 := gtk.NewVBox(false, 1)
	frame2.Add(framebox2)

	vpaned.Pack1(frame1, false, false)
	vpaned.Pack2(frame2, false, false)

	//--------------------------------------------------------
	// GtkImage
	//--------------------------------------------------------
	dir, _ := path.Split(os.Args[0])
	imagefile := path.Join(dir, "../../data/go-gtk-logo.png")

	label := gtk.NewLabel("Go Binding for GTK")
	label.ModifyFontEasy("DejaVu Serif 15")
	framebox1.PackStart(label, false, true, 0)

	//--------------------------------------------------------
	// GtkEntry
	//--------------------------------------------------------
	entry := gtk.NewEntry()
	entry.SetText("Hello world")
	framebox1.Add(entry)

	image := gtk.NewImageFromFile(imagefile)
	framebox1.Add(image)

	//--------------------------------------------------------
	// GtkScale
	//--------------------------------------------------------
	scale := gtk.NewHScaleWithRange(0, 100, 1)
	scale.Connect("value-changed", func() {
		println("scale:", int(scale.GetValue()))
	})
	framebox2.Add(scale)

	//--------------------------------------------------------
	// GtkHBox
	//--------------------------------------------------------
	buttons := gtk.NewHBox(false, 1)

	//--------------------------------------------------------
	// GtkButton
	//--------------------------------------------------------
	button := gtk.NewButtonWithLabel("Button with label")
	button.Clicked(func() {
		println("button clicked:", button.GetLabel())
		messagedialog := gtk.NewMessageDialog(
			button.GetTopLevelAsWindow(),
			gtk.DIALOG_MODAL,
			gtk.MESSAGE_INFO,
			gtk.BUTTONS_OK,
			entry.GetText())
		messagedialog.Response(func() {
			println("Dialog OK!")

			//--------------------------------------------------------
			// GtkFileChooserDialog
			//--------------------------------------------------------
			filechooserdialog := gtk.NewFileChooserDialog(
				"Choose File...",
				button.GetTopLevelAsWindow(),
				gtk.FILE_CHOOSER_ACTION_OPEN,
				gtk.STOCK_OK,
				gtk.RESPONSE_ACCEPT)
			filter := gtk.NewFileFilter()
			filter.AddPattern("*.go")
			filechooserdialog.AddFilter(filter)
			filechooserdialog.Response(func() {
				println(filechooserdialog.GetFilename())
				filechooserdialog.Destroy()
			})
			filechooserdialog.Run()
			messagedialog.Destroy()
		})
		messagedialog.Run()
	})
	buttons.Add(button)

	//--------------------------------------------------------
	// GtkFontButton
	//--------------------------------------------------------
	fontbutton := gtk.NewFontButton()
	fontbutton.Connect("font-set", func() {
		println("title:", fontbutton.GetTitle())
		println("fontname:", fontbutton.GetFontName())
		println("use_size:", fontbutton.GetUseSize())
		println("show_size:", fontbutton.GetShowSize())
	})
	buttons.Add(fontbutton)
	framebox2.PackStart(buttons, false, false, 0)

	buttons = gtk.NewHBox(false, 1)

	//--------------------------------------------------------
	// GtkToggleButton
	//--------------------------------------------------------
	togglebutton := gtk.NewToggleButtonWithLabel("ToggleButton with label")
	togglebutton.Connect("toggled", func() {
		if togglebutton.GetActive() {
			togglebutton.SetLabel("ToggleButton ON!")
		} else {
			togglebutton.SetLabel("ToggleButton OFF!")
		}
	})
	buttons.Add(togglebutton)

	//--------------------------------------------------------
	// GtkCheckButton
	//--------------------------------------------------------
	checkbutton := gtk.NewCheckButtonWithLabel("CheckButton with label")
	checkbutton.Connect("toggled", func() {
		if checkbutton.GetActive() {
			checkbutton.SetLabel("CheckButton CHECKED!")
		} else {
			checkbutton.SetLabel("CheckButton UNCHECKED!")
		}
	})
	buttons.Add(checkbutton)

	//--------------------------------------------------------
	// GtkRadioButton
	//--------------------------------------------------------
	buttonbox := gtk.NewVBox(false, 1)
	radiofirst := gtk.NewRadioButtonWithLabel(nil, "Radio1")
	buttonbox.Add(radiofirst)
	buttonbox.Add(gtk.NewRadioButtonWithLabel(radiofirst.GetGroup(), "Radio2"))
	buttonbox.Add(gtk.NewRadioButtonWithLabel(radiofirst.GetGroup(), "Radio3"))
	buttons.Add(buttonbox)
	//radiobutton.SetMode(false);
	radiofirst.SetActive(true)

	framebox2.PackStart(buttons, false, false, 0)

	//--------------------------------------------------------
	// GtkVSeparator
	//--------------------------------------------------------
	vsep := gtk.NewVSeparator()
	framebox2.PackStart(vsep, false, false, 0)

	//--------------------------------------------------------
	// GtkComboBoxEntry
	//--------------------------------------------------------
	combos := gtk.NewHBox(false, 1)
	comboboxentry := gtk.NewComboBoxEntryNewText()
	comboboxentry.AppendText("Monkey")
	comboboxentry.AppendText("Tiger")
	comboboxentry.AppendText("Elephant")
	comboboxentry.Connect("changed", func() {
		println("value:", comboboxentry.GetActiveText())
	})
	combos.Add(comboboxentry)

	//--------------------------------------------------------
	// GtkComboBox
	//--------------------------------------------------------
	combobox := gtk.NewComboBoxNewText()
	combobox.AppendText("Peach")
	combobox.AppendText("Banana")
	combobox.AppendText("Apple")
	combobox.SetActive(1)
	combobox.Connect("changed", func() {
		println("value:", combobox.GetActiveText())
	})
	combos.Add(combobox)

	framebox2.PackStart(combos, false, false, 0)

	//--------------------------------------------------------
	// GtkTextView
	//--------------------------------------------------------
	swin := gtk.NewScrolledWindow(nil, nil)
	swin.SetPolicy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
	swin.SetShadowType(gtk.SHADOW_IN)
	textview := gtk.NewTextView()
	var start, end gtk.TextIter
	buffer := textview.GetBuffer()
	buffer.GetStartIter(&start)
	buffer.Insert(&start, "Hello ")
	buffer.GetEndIter(&end)
	buffer.Insert(&end, "World!")
	tag := buffer.CreateTag("bold", map[string]string{
		"background": "#FF0000", "weight": "700"})
	buffer.GetStartIter(&start)
	buffer.GetEndIter(&end)
	buffer.ApplyTag(tag, &start, &end)
	swin.Add(textview)
	framebox2.Add(swin)

	buffer.Connect("changed", func() {
		println("changed")
	})

	//--------------------------------------------------------
	// GtkMenuItem
	//--------------------------------------------------------
	cascademenu := gtk.NewMenuItemWithMnemonic("_File")
	menubar.Append(cascademenu)
	submenu := gtk.NewMenu()
	cascademenu.SetSubmenu(submenu)

	menuitem = gtk.NewMenuItemWithMnemonic("E_xit")
	menuitem.Connect("activate", func() {
		gtk.MainQuit()
	})
	submenu.Append(menuitem)

	cascademenu = gtk.NewMenuItemWithMnemonic("_View")
	menubar.Append(cascademenu)
	submenu = gtk.NewMenu()
	cascademenu.SetSubmenu(submenu)

	checkmenuitem := gtk.NewCheckMenuItemWithMnemonic("_Disable")
	checkmenuitem.Connect("activate", func() {
		vpaned.SetSensitive(!checkmenuitem.GetActive())
	})
	submenu.Append(checkmenuitem)

	menuitem = gtk.NewMenuItemWithMnemonic("_Font")
	menuitem.Connect("activate", func() {
		fsd := gtk.NewFontSelectionDialog("Font")
		fsd.SetFontName(fontbutton.GetFontName())
		fsd.Response(func() {
			println(fsd.GetFontName())
			fontbutton.SetFontName(fsd.GetFontName())
			fsd.Destroy()
		})
		fsd.SetTransientFor(window)
		fsd.Run()
	})
	submenu.Append(menuitem)

	cascademenu = gtk.NewMenuItemWithMnemonic("_Help")
	menubar.Append(cascademenu)
	submenu = gtk.NewMenu()
	cascademenu.SetSubmenu(submenu)

	menuitem = gtk.NewMenuItemWithMnemonic("_About")
	menuitem.Connect("activate", func() {
		dialog := gtk.NewAboutDialog()
		dialog.SetName("Go-Gtk Demo!")
		dialog.SetProgramName("demo")
		dialog.SetAuthors(authors())
		dir, _ := path.Split(os.Args[0])
		imagefile := path.Join(dir, "../../data/johnbartholomew-logo.png")
		pixbuf, _ := gdkpixbuf.NewFromFile(imagefile)
		dialog.SetLogo(pixbuf)
		dialog.SetLicense("The library is available under the same terms and conditions as the Go, the BSD style license, and the LGPL (Lesser GNU Public License). The idea is that if you can use Go (and Gtk) in a project, you should also be able to use go-gtk.")
		dialog.SetWrapLicense(true)
		dialog.Run()
		dialog.Destroy()
	})
	submenu.Append(menuitem)

	//--------------------------------------------------------
	// GtkStatusbar
	//--------------------------------------------------------
	statusbar := gtk.NewStatusbar()
	context_id := statusbar.GetContextId("go-gtk")
	statusbar.Push(context_id, "GTK binding for Go!")

	framebox2.PackStart(statusbar, false, false, 0)

	//--------------------------------------------------------
	// Event
	//--------------------------------------------------------
	window.Add(vbox)
	window.SetSizeRequest(600, 600)
	window.ShowAll()
	gtk.Main()
}