/usr/lib/python2.7/dist-packages/pyglet/app/carbon.py is in python-pyglet 1.1.4.dfsg-3.
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# pyglet
# Copyright (c) 2006-2008 Alex Holkner
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of pyglet nor the names of its
# contributors may be used to endorse or promote products
# derived from this software without specific prior written
# permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# ----------------------------------------------------------------------------
'''
'''
__docformat__ = 'restructuredtext'
__version__ = '$Id: $'
import ctypes
from pyglet.app import windows, BaseEventLoop
from pyglet.window.carbon import carbon, types, constants, _oscheck
EventLoopTimerProc = ctypes.CFUNCTYPE(None, ctypes.c_void_p, ctypes.c_void_p)
kEventDurationForever = ctypes.c_double(constants.kEventDurationForever)
class CarbonEventLoop(BaseEventLoop):
def run(self):
self._setup()
e = ctypes.c_void_p()
event_dispatcher = carbon.GetEventDispatcherTarget()
self._event_loop = event_loop = carbon.GetMainEventLoop()
event_queue = carbon.GetMainEventQueue()
self._timer = timer = ctypes.c_void_p()
idle_event_proc = EventLoopTimerProc(self._timer_proc)
carbon.InstallEventLoopTimer(event_loop,
ctypes.c_double(0.1), #?
kEventDurationForever,
idle_event_proc,
None,
ctypes.byref(timer))
self._force_idle = False
self._allow_polling = True
self.dispatch_event('on_enter')
while not self.has_exit:
if self._force_idle:
duration = 0
else:
duration = kEventDurationForever
if carbon.ReceiveNextEvent(0, None, duration,
True, ctypes.byref(e)) == 0:
carbon.SendEventToEventTarget(e, event_dispatcher)
carbon.ReleaseEvent(e)
# Manual idle event
if carbon.GetNumEventsInQueue(event_queue) == 0 or self._force_idle:
self._force_idle = False
self._timer_proc(timer, None, False)
carbon.RemoveEventLoopTimer(self._timer)
self.dispatch_event('on_exit')
def _stop_polling(self):
carbon.SetEventLoopTimerNextFireTime(self._timer, ctypes.c_double(0.0))
def _enter_blocking(self):
carbon.SetEventLoopTimerNextFireTime(self._timer, ctypes.c_double(0.0))
self._allow_polling = False
def _exit_blocking(self):
self._allow_polling = True
def _timer_proc(self, timer, data, in_events=True):
allow_polling = True
for window in windows:
# Check for live resizing
if window._resizing is not None:
allow_polling = False
old_width, old_height = window._resizing
rect = types.Rect()
carbon.GetWindowBounds(window._window,
constants.kWindowContentRgn,
ctypes.byref(rect))
width = rect.right - rect.left
height = rect.bottom - rect.top
if width != old_width or height != old_height:
window._resizing = width, height
window.switch_to()
window.dispatch_event('on_resize', width, height)
# Check for live dragging
if window._dragging:
allow_polling = False
# Check for deferred recreate
if window._recreate_deferred:
if in_events:
# Break out of ReceiveNextEvent so it can be processed
# in next iteration.
carbon.QuitEventLoop(self._event_loop)
self._force_idle = True
else:
# Do it now.
window._recreate_immediate()
sleep_time = self.idle()
if sleep_time is None:
sleep_time = constants.kEventDurationForever
elif sleep_time < 0.01 and allow_polling and self._allow_polling:
# Switch event loop to polling.
if in_events:
carbon.QuitEventLoop(self._event_loop)
self._force_idle = True
sleep_time = constants.kEventDurationForever
carbon.SetEventLoopTimerNextFireTime(timer, ctypes.c_double(sleep_time))
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