func NewGTKUI() *GTKUI {
gtk.Init(nil)
window := gtk.Window(gtk.GTK_WINDOW_TOPLEVEL)
window.SetPosition(gtk.GTK_WIN_POS_CENTER)
window.SetTitle("Pond")
window.SetDefaultSize(1000, 800)
ui := >KUI{
window: window,
actions: make(chan interface{}, uiActionsQueueLen),
events: make(chan interface{}, 8),
}
window.Connect("destroy", func(ctx *glib.CallbackContext) {
close(ui.events)
for {
if _, ok := <-ui.actions; !ok {
break
}
}
gtk.MainQuit()
})
if err := syscall.Pipe(ui.pipe[:]); err != nil {
panic(err)
}
syscall.SetNonblock(ui.pipe[0], true)
glib.FdWatchAdd(ui.pipe[0], glib.IOIn, func(conditions int) bool {
ui.onAction()
return true
})
return ui
}
func (ui *GTKUI) onAction() {
buf := make([]byte, 8)
for {
n, _ := syscall.Read(ui.pipe[0], buf)
if n < 1 {
break
}
}
for {
select {
case v, ok := <-ui.actions:
if !ok {
gtk.MainQuit()
return
}
ui.handle(v)
default:
return
}
}
}