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"""GnuMed wx.Timer proxy object.
@copyright: author(s)
"""
############################################################################
# $Source: /sources/gnumed/gnumed/gnumed/client/wxpython/gmTimer.py,v $
# $Id: gmTimer.py,v 1.10 2005/09/28 21:27:30 ncq Exp $
__version__ = "$Revision: 1.10 $"
__author__ = "K. Hilbert <Karsten.Hilbert@gmx.net>"
__licence__ = "GPL (details at http://www.gnu.org)"
# 3rd party
try:
import wxversion
import wx
except ImportError:
from wxPython.wx import wxTimer
# GnuMed
from Gnumed.pycommon import gmLog
_log = gmLog.gmDefLog
_log.Log(gmLog.lInfo, __version__)
#===========================================================================
class cTimer(wx.Timer):
"""wx.Timer proxy.
It would be quite useful to tune the delay
according to current network speed either at
application startup or even during runtime.
"""
def __init__(self, callback = None, delay = 300, cookie = None):
"""Set up our timer with reasonable defaults.
- delay default is 300ms as per Richard Terry's experience
- delay should be tailored to network speed/user speed
- <cookie> is passed to <callback> when <delay> is up
"""
# sanity check
if callback is None:
_log.Log(gmLog.lErr, "no use setting up a timer without a callback function")
raise ValueError, "No use setting up a timer without a callback function."
if cookie is None:
self.__cookie = id(self)
else:
self.__cookie = cookie
self.__callback = callback
self.__delay = delay
wx.Timer.__init__(self)
#-----------------------------------------------------------------------
def Start(self, milliseconds=-1, oneShot=False):
if milliseconds == -1:
milliseconds = self.__delay
wx.Timer.Start(self, milliseconds=milliseconds, oneShot=oneShot)
#-----------------------------------------------------------------------
def Notify(self):
self.__callback(self.__cookie)
#-----------------------------------------------------------------------
def set_cookie(self, cookie=None):
if cookie is None:
self.__cookie = id(self)
else:
self.__cookie = cookie
#===========================================================================
if __name__ == '__main__':
import time
try:
import wxversion
import wx
except ImportError:
from wxPython.wx import wxApp
#-----------------------------------------------------------------------
def cb_timer(cookie):
print "timer <%s> fired" % cookie
return 1
#-----------------------------------------------------------------------
class cApp(wx.App):
def OnInit(self):
print "setting up timer"
timer = cTimer(callback = cb_timer)
print "starting timer"
timer.Start(oneShot=True)
print "waiting for timer to trigger"
time.sleep(2)
return True
#-----------------------------------------------------------------------
app = cApp(0)
# and enter the main event loop
app.MainLoop()
#===========================================================================
# $Log: gmTimer.py,v $
# Revision 1.10 2005/09/28 21:27:30 ncq
# - a lot of wx2.6-ification
#
# Revision 1.9 2005/09/28 19:47:01 ncq
# - runs until login dialog
#
# Revision 1.8 2005/09/28 15:57:48 ncq
# - a whole bunch of wx.Foo -> wx.Foo
#
# Revision 1.7 2005/09/27 20:44:59 ncq
# - wx.wx* -> wx.*
#
# Revision 1.6 2005/09/26 18:01:51 ncq
# - use proper way to import wx26 vs wx2.4
# - note: THIS WILL BREAK RUNNING THE CLIENT IN SOME PLACES
# - time for fixup
#
# Revision 1.5 2005/07/24 09:21:09 ncq
# - use proxy Start() to work around Windows timer Start() glitches
#
# Revision 1.4 2005/07/23 21:12:19 ncq
# - no keywords for Windows in Start()
#
# Revision 1.3 2005/07/23 21:08:28 ncq
# - explicitely use milliseconds=-1 as Windows seems to require it
#
# Revision 1.2 2005/07/23 20:47:02 ncq
# - start wxApp instance when testing - needed in windows
#
# Revision 1.1 2004/12/23 15:07:36 ncq
# - provide a convenient wxTimer proxy object
#
#
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