func CreateWindow(title string, width int, height int) unsafe.Pointer {
Logger.Println("CreateWindow")
// Create window.
window := C.gtk_window_new(C.GTK_WINDOW_TOPLEVEL)
// Default size.
C.gtk_window_set_default_size(C.ToGtkWindow(window),
C.gint(width), C.gint(height))
// Center.
C.gtk_window_set_position(C.ToGtkWindow(window), C.GTK_WIN_POS_CENTER)
// Title.
csTitle := C.CString(title)
defer C.free(unsafe.Pointer(csTitle))
C.gtk_window_set_title(C.ToGtkWindow(window), (*C.gchar)(csTitle))
// TODO: focus
// g_signal_connect(window, "focus", G_CALLBACK(&HandleFocus), NULL);
// CEF requires a container. Embedding browser in a top
// level window fails.
vbox := C.gtk_vbox_new(0, 0)
C.gtk_container_add(C.ToGtkContainer(window), vbox)
// Show.
C.gtk_widget_show_all(window)
return unsafe.Pointer(vbox)
}
func (s *sysData) center() {
ret := make(chan struct{})
defer close(ret)
uitask <- func() {
if C.gtk_widget_get_visible(s.widget) == C.FALSE {
// hint to the WM to make it centered when it is shown again
// thanks to Jasper in irc.gimp.net/#gtk+
C.gtk_window_set_position(togtkwindow(s.widget), C.GTK_WIN_POS_CENTER)
} else {
var width, height C.gint
s.resetposition()
//we should be able to use gravity to simplify this, but it doesn't take effect immediately, and adding show calls does nothing (thanks Jasper in irc.gimp.net/#gtk+)
C.gtk_window_get_size(togtkwindow(s.widget), &width, &height)
C.gtk_window_move(togtkwindow(s.widget),
(C.gdk_screen_width()/2)-(width/2),
(C.gdk_screen_height()/2)-(width/2))
}
ret <- struct{}{}
}
<-ret
}
// SetPosition is a wrapper around gtk_window_set_position().
func (v *Window) SetPosition(position WindowPosition) {
C.gtk_window_set_position(v.native(), C.GtkWindowPosition(position))
}
// see sysData.center()
func (s *sysData) resetposition() {
C.gtk_window_set_position(togtkwindow(s.widget), C.GTK_WIN_POS_NONE)
}
func gtk_window_set_position(p GtkWidget, t int) {
C.gtk_window_set_position(Arg(p), C.int(t))
}