def dispatch_events(self):
self.dispatch_pending_events()
self._allow_dispatch_event = True
e = xlib.XEvent()
# Cache these in case window is closed from an event handler
_x_display = self._x_display
_window = self._window
_view = self._view
# Check for the events specific to this window
while xlib.XCheckWindowEvent(_x_display, _window,
0x1ffffff, byref(e)):
# Key events are filtered by the xlib window event
# handler so they get a shot at the prefiltered event.
if e.xany.type not in (xlib.KeyPress, xlib.KeyRelease):
if xlib.XFilterEvent(e, 0):
continue
self.dispatch_platform_event(e)
# Check for the events specific to this view
while xlib.XCheckWindowEvent(_x_display, _view,
0x1ffffff, byref(e)):
# Key events are filtered by the xlib window event
# handler so they get a shot at the prefiltered event.
if e.xany.type not in (xlib.KeyPress, xlib.KeyRelease):
if xlib.XFilterEvent(e, 0):
continue
self.dispatch_platform_event_view(e)
# Generic events for this window (the window close event).
while xlib.XCheckTypedWindowEvent(_x_display, _window,
xlib.ClientMessage, byref(e)):
self.dispatch_platform_event(e)
if self._needs_resize:
self.dispatch_event('on_resize', self._width, self._height)
self.dispatch_event('on_expose')
self._needs_resize = False
self._allow_dispatch_event = False
def select(self):
e = xlib.XEvent()
while xlib.XPending(self._display):
xlib.XNextEvent(self._display, e)
# Key events are filtered by the xlib window event
# handler so they get a shot at the prefiltered event.
if e.xany.type not in (xlib.KeyPress, xlib.KeyRelease):
if xlib.XFilterEvent(e, e.xany.window):
continue
try:
dispatch = self._window_map[e.xany.window]
except KeyError:
continue
dispatch(e)
def _event_text_symbol(self, ev):
text = None
symbol = xlib.KeySym()
buffer = create_string_buffer(128)
# Look up raw keysym before XIM filters it (default for keypress and
# keyrelease)
count = xlib.XLookupString(ev.xkey,
buffer, len(buffer) - 1,
byref(symbol), None)
# Give XIM a shot
filtered = xlib.XFilterEvent(ev, ev.xany.window)
if ev.type == xlib.KeyPress and not filtered:
status = c_int()
if _have_utf8:
encoding = 'utf8'
count = xlib.Xutf8LookupString(self._x_ic,
ev.xkey,
buffer, len(buffer) - 1,
byref(symbol), byref(status))
if status.value == xlib.XBufferOverflow:
raise NotImplementedError('TODO: XIM buffer resize')
else:
encoding = 'ascii'
count = xlib.XLookupString(ev.xkey,
buffer, len(buffer) - 1,
byref(symbol), None)
if count:
status.value = xlib.XLookupBoth
if status.value & (xlib.XLookupChars | xlib.XLookupBoth):
text = buffer.value[:count].decode(encoding)
# Don't treat Unicode command codepoints as text, except Return.
if text and unicodedata.category(text) == 'Cc' and text != '\r':
text = None
symbol = symbol.value
# If the event is a XIM filtered event, the keysym will be virtual
# (e.g., aacute instead of A after a dead key). Drop it, we don't
# want these kind of key events.
if ev.xkey.keycode == 0 and not filtered:
symbol = None
# pyglet.self.key keysymbols are identical to X11 keysymbols, no
# need to map the keysymbol. For keysyms outside the pyglet set, map
# raw key code to a user key.
if symbol and symbol not in key._key_names and ev.xkey.keycode:
# Issue 353: Symbol is uppercase when shift key held down.
symbol = ord(unichr(symbol).lower())
# If still not recognised, use the keycode
if symbol not in key._key_names:
symbol = key.user_key(ev.xkey.keycode)
if filtered:
# The event was filtered, text must be ignored, but the symbol is
# still good.
return None, symbol
return text, symbol
