// LabelNew is a wrapper around gtk_label_new().
func LabelNew(str string) (*Label, error) {
cstr := C.CString(str)
defer C.free(unsafe.Pointer(cstr))
c := C.gtk_label_new((*C.gchar)(cstr))
if c == nil {
return nil, nilPtrErr
}
obj := wrapObject(unsafe.Pointer(c))
return wrapLabel(obj), nil
}
func newLabel(text string) Label {
ctext := togstr(text)
defer freegstr(ctext)
widget := C.gtk_label_new(ctext)
l := &label{
controlSingleWidget: newControlSingleWidget(widget),
misc: (*C.GtkMisc)(unsafe.Pointer(widget)),
label: (*C.GtkLabel)(unsafe.Pointer(widget)),
}
return l
}
func finishNewLabel(text string, standalone bool) *label {
ctext := togstr(text)
defer freegstr(ctext)
widget := C.gtk_label_new(ctext)
l := &label{
_widget: widget,
misc: (*C.GtkMisc)(unsafe.Pointer(widget)),
label: (*C.GtkLabel)(unsafe.Pointer(widget)),
standalone: standalone,
}
return l
}
func NewLabel(str string) *Label {
l := &Label{}
s := gobject.GString(str)
defer s.Free()
o := C.gtk_label_new((*C.gchar)(s.GetPtr()))
l.Widget = NewWidget(unsafe.Pointer(o))
l.object = C.to_GtkLabel(unsafe.Pointer(o))
return l
}
func gtk_label_new() *C.GtkWidget {
label := C.gtk_label_new(emptystring)
C.gtk_label_set_line_wrap(togtklabel(label), C.FALSE) // turn off line wrap
// don't call gtk_label_set_line_wrap_mode(); there's no "wrap none" value there anyway
C.gtk_label_set_ellipsize(togtklabel(label), C.PANGO_ELLIPSIZE_NONE) // turn off ellipsizing; this + line wrapping above will guarantee cutoff as documented
// there's a function gtk_label_set_justify() that indicates GTK_JUSTIFY_LEFT is the default
// but this actually is NOT the control justification, just the multi-line justification
// so we need to do THIS instead
// this will also valign to the top
// thanks to mclasen in irc.gimp.net/#gtk+
C.gtk_misc_set_alignment((*C.GtkMisc)(unsafe.Pointer(label)), 0, 0)
return label
}
func gtk_label_new() *C.GtkWidget {
label := C.gtk_label_new(emptystring)
C.gtk_label_set_line_wrap(togtklabel(label), C.FALSE) // turn off line wrap
// don't call gtk_label_set_line_wrap_mode(); there's no "wrap none" value there anyway
C.gtk_label_set_ellipsize(togtklabel(label), C.PANGO_ELLIPSIZE_NONE) // turn off ellipsizing; this + line wrapping above will guarantee cutoff as documented
// there's a function gtk_label_set_justify() that indicates GTK_JUSTIFY_LEFT is the default
// but this actually is NOT the control justification, just the multi-line justification
// so we need to do THIS instead
// this will valign to the center, which is what the HIG says (https://developer.gnome.org/hig-book/3.4/design-text-labels.html.en) for all controls that label to the side; thankfully this means we don't need to do any extra positioning magic
// this will also valign to the top
// thanks to mclasen in irc.gimp.net/#gtk+
gtk_misc_set_alignment(label, 0, 0.5)
return label
}
func main() {
// init gtk
var argc C.int
C.gtk_init(&argc, nil)
// root window
win := C.gtk_window_new(C.GTK_WINDOW_TOPLEVEL)
connect(win, "destroy", func() { // quit gtk when window is closed
C.gtk_main_quit()
})
// root grid
grid := C.gtk_grid_new()
C.gtk_container_add(asContainer(win), grid)
// webview container
pages := C.gtk_notebook_new()
C.gtk_grid_attach(asGrid(grid), pages, 0, 0, 1, 1)
C.gtk_widget_set_vexpand(pages, C.gtk_true())
C.gtk_widget_set_hexpand(pages, C.gtk_true())
C.gtk_notebook_set_tab_pos(asNotebook(pages), C.GTK_POS_LEFT)
// new view constructor
var newView func() *View
newView = func() *View {
view := NewView()
label := C.gtk_label_new(nil)
C.gtk_label_set_use_markup(asLabel(label), C.gtk_true())
C.gtk_misc_set_alignment(asMisc(label), 0, 0.5)
C.gtk_notebook_append_page(asNotebook(pages), view.Widget, label)
// new view is requested
connect(view.View, "create", func() *C.GtkWidget {
return newView().Widget
})
// set tab label to page title
connect(view.View, "notify::title", func() {
var title string
// trim long title
for _, r := range fromGStr(C.webkit_web_view_get_title(view.View)) {
if len(title) > 32 {
break
}
title += string(r)
}
C.gtk_label_set_markup(asLabel(label), toGStr(fmt.Sprintf(`<span font="10">%s</span>`, title)))
})
return view
}
// first view
view := newView()
C.webkit_web_view_load_uri(view.View, toGStr("http://www.bilibili.tv"))
// show window and run
C.gtk_widget_show_all(win)
C.gtk_main()
}
func gtk_label_new(s string) GtkWidget {
n := C.CString(s)
defer C.free(unsafe.Pointer(n))
return GtkWidget(C.gtk_label_new(n))
}