diff options
Diffstat (limited to 'sugargame/canvas.py')
-rwxr-xr-x | sugargame/canvas.py | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sugargame/canvas.py b/sugargame/canvas.py new file mode 100755 index 0000000..cf99a13 --- /dev/null +++ b/sugargame/canvas.py @@ -0,0 +1,56 @@ +import os +import gtk +import gobject +import pygame +import event + +CANVAS = None + +class PygameCanvas(gtk.EventBox): + def __init__(self, mainwindow): + gtk.EventBox.__init__(self) + + global CANVAS + assert CANVAS == None, "Only one PygameCanvas can be created, ever." + CANVAS = self + + self._mainwindow = mainwindow + + self.set_flags(gtk.CAN_FOCUS) + + self._socket = gtk.Socket() + self.add(self._socket) + self.show_all() + + def run_pygame(self, main_fn): + # Run the main loop after a short delay. The reason for the delay is that the + # Sugar activity is not properly created until after its constructor returns. + # If the Pygame main loop is called from the activity constructor, the + # constructor never returns and the activity freezes. + gobject.idle_add(self._run_pygame_cb, main_fn) + + def _run_pygame_cb(self, main_fn): + assert pygame.display.get_surface() is None, "PygameCanvas.run_pygame can only be called once." + + # Preinitialize Pygame with the X window ID. + assert pygame.display.get_init() == False, "Pygame must not be initialized before calling PygameCanvas.run_pygame." + os.environ['SDL_WINDOWID'] = str(self._socket.get_id()) + pygame.init() + + # Restore the default cursor. + self._socket.get_window().set_cursor(None) + + # Initialize the Pygame window. + r = self.get_allocation() + pygame.display.set_mode((r.width, r.height), pygame.RESIZABLE) + + # Hook certain Pygame functions with GTK equivalents. + translator = event.Translator(self._mainwindow, self) + translator.hook_pygame() + + # Run the Pygame main loop. + main_fn() + return False + + def get_pygame_widget(self): + return self._socket |