func setup_box(orient gtk.Orientation) *gtk.Box {
box, err := gtk.BoxNew(orient, 0)
if err != nil {
log.Fatal("Unable to create box:", err)
}
return box
}
func setupPropertyCheckboxes(tv *gtk.TextView, outer *gtk.Box, props []*BoolProperty) {
box, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, 0)
for _, prop := range props {
chk, _ := gtk.CheckButtonNewWithLabel(prop.Name)
// initialize the checkbox with the property's current value
chk.SetActive(prop.Get())
p := prop // w/o this all the checkboxes will toggle the last property in props
chk.Connect("toggled", func() {
p.Set(chk.GetActive())
})
box.PackStart(chk, true, true, 0)
}
outer.PackStart(box, false, false, 0)
}
// TestConnectNotifySignal ensures that property notification signals (those
// whose name begins with "notify::") are queried by the name "notify" (with the
// "::" and the property name omitted). This is because the signal is "notify"
// and the characters after the "::" are not recognized by the signal system.
//
// See
// https://developer.gnome.org/gobject/stable/gobject-The-Base-Object-Type.html#GObject-notify
// for background, and
// https://developer.gnome.org/gobject/stable/gobject-Signals.html#g-signal-new
// for the specification of valid signal names.
func TestConnectNotifySignal(t *testing.T) {
runtime.LockOSThread()
// Create any GObject that has defined properties.
spacing := 0
box, _ := gtk.BoxNew(gtk.ORIENTATION_HORIZONTAL, spacing)
// Connect to a "notify::" signal to listen on property changes.
box.Connect("notify::spacing", func() {
gtk.MainQuit()
})
glib.IdleAdd(func(s string) bool {
t.Log(s)
spacing++
box.SetSpacing(spacing)
return true
}, "IdleAdd executed")
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()
}