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# libavg - Media Playback Engine.
# Copyright (C) 2003-2014 Ulrich von Zadow
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# Current versions can be found at www.libavg.de
#
# Original author of this file is Martin Heistermann <mh at sponc dot de>
#
from appstarter import AppStarter
class AVGApp(object):
_instances = {}
multitouch = False
fakeFullscreen = False
def __init__(self, parentNode):
'''
Initialization before Player.play()
Use this only when needed, e.g. for
WordsNode.addFontDir(). Do not forget to call
super(YourApp, self).__init__(parentNode)
'''
import warnings
warnings.warn('AVGApp is deprecated, use libavg.app.App instead')
appname = self.__class__.__name__
if appname in AVGApp._instances:
raise RuntimeError('App %s already setup' % appname)
AVGApp._instances[appname] = self
self.__isRunning = False
self._parentNode = parentNode
self._starter = None
if 'onKey' in dir(self):
raise DeprecationWarning, \
'AVGApp.onKey() has been renamed to AVGApp.onKeyDown().'
@classmethod
def get(cls):
'''
Get the Application instance
Note: this class method has to be called from the top-level app class:
>>> class MyApp(libavg.AVGApp):
... pass
>>> instance = MyApp.get()
'''
return cls._instances.get(cls.__name__, None)
@classmethod
def start(cls, **kwargs):
if cls.multitouch:
from appstarter import AVGMTAppStarter
starter = AVGMTAppStarter
else:
from appstarter import AVGAppStarter
starter = AVGAppStarter
starter(appClass=cls, fakeFullscreen=cls.fakeFullscreen, **kwargs)
def init(self):
"""main initialization
build node hierarchy under self.__parentNode."""
pass
def exit(self):
"""Deinitialization
Called after player.play() returns. End of program run."""
pass
def _enter(self):
"""enter the application, internal interface.
override this and start all animations, intervals
etc. here"""
pass
def _leave(self):
"""leave the application, internal interface.
override this and stop all animations, intervals
etc. Take care your application does not use any
non-needed resources after this."""
pass
def enter(self, onLeave = lambda: None):
"""enter the application, external interface.
Do not override this."""
self.__isRunning = True
self._onLeave = onLeave
self._enter()
def leave(self):
"""leave the application, external interface.
Do not override this."""
self.__isRunning = False
self._onLeave()
self._leave()
def onKeyDown(self, event):
"""returns bool indicating if the event was handled
by the application """
return False
def onKeyUp(self, event):
"""returns bool indicating if the event was handled
by the application """
return False
def isRunning(self):
return self.__isRunning
def setStarter(self, starter):
self._starter = starter
def getStarter(self):
return self._starter
class App(object):
@classmethod
def start(cls, *args, **kargs):
raise RuntimeError('avgapp.App cannot be used any longer. Use libavg.AVGApp for '
'a compatible class or switch to the new libavg.app.App')
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