#!/usr/bin/env python # -*- coding: us-ascii -*- import wx import time import math DEBUG=1 class AlarmTimer(wx.Frame): """ The __alarmTime Class is a Frame containing a simple timer that blinks and outputs a sound when a specified time is up. """ def __init__(self, inParent, inId, inTitle, inAlarmTime=10, inAlarmDuration=10, inAlarmStaysOn=True, inAlarmSound=None): wx.Frame.__init__(self, inParent, inId, inTitle, style=wx.DEFAULT_FRAME_STYLE) ##### Hidden PROPERTIES self.__displayUpdateTimerInterval = 500 self.__alarmUpdateTimerInterval = 1000 self.__startTime = None self.__alarmTrippedTime = None self.__alarmTripped = False self.__labelNormalForeground = wx.Color(0,0,0) self.__labelAlarmForeground = wx.Color(255,0,0) self.__labelFont = wx.Font(40, wx.SCRIPT, wx.NORMAL, wx.BOLD, 0, "") ##### Objects self.__alarmTimerLabel = wx.StaticText(self, -1, "00:00", style=wx.ALIGN_CENTRE) self.__displayUpdateTimer = wx.Timer(self,-1) self.__alarmUpdateTimer = wx.Timer(self,-1) ##### Object PROPERTIES self._setAlarmTime = None; self.setAlarmTime(inAlarmTime) self._setAlarmDuration = None; self.setAlarmDuration(inAlarmDuration) self._setAlarmStaysOn = None; self.setAlarmStaysOn(inAlarmStaysOn) self._setAlarmSound = None; self.setAlarmSound(inAlarmSound) ##### Event Bindings self.Bind(wx.EVT_TIMER, self.__onDisplayUpdateTimer, self.__displayUpdateTimer) self.Bind(wx.EVT_TIMER, self.__onAlarmUpdateTimer, self.__alarmUpdateTimer) self.__alarmTimerLabel.Bind(wx.EVT_LEFT_DCLICK, self.__onLeftDClick) ##### Tidying up self.SetForegroundColour(self.__labelNormalForeground) self.__alarmTimerLabel.SetFont(self.__labelFont) sizer = wx.BoxSizer(wx.VERTICAL) sizer.Add(self.__alarmTimerLabel, 1, wx.ALL | wx.EXPAND, 0) self.SetSizer(sizer) sizer.Fit(self) self.Layout() def getAlarmTime(self): return self._alarmTime def getAlarmDuration(self): return self._alarmDuration def isAlarmStaysOn(self): return self._alarmStaysOn def getAlarmSound(self): return self._alarmSound def setAlarmTime(self, value): """ set the time after which the alarm is tripped value is a floating point value >= 0 in seconds set to 0 for no alarm """ if (value<0): raise ValueError("Alarm time must be >= 0"); else: self._alarmTime = float(value) def setAlarmTimeInMins(self, value): """ set the time after which the alarm is tripped value is a floating point value >= 0 in minutes set to 0 for no alarm """ self.setAlarmTime(value*60) def setAlarmDuration(self, value): """ set the duration for which the alarm is going off after being tripped value is a floating point value >= 0 in seconds set to 0 for endless alarm """ if (value<0): raise ValueError("Alarm time must be >= 0"); else: self._alarmDuration = float(value) def setAlarmStaysOn(self, value): """ defines if the alarm stays tripped after reaching the end of its duration """ self._alarmStaysOn = value def setAlarmSound(self, value): """ defines the sound byte that plays when the alarm is tripped value is a wxSound object """ self._alarmSound = value try: assert value.IsOk() except: print "WARNING: sound did not load properly, no sound will be produced" self._alarmSound = None def setAlarmSoundFile(self, value): """ defines the sound byte that plays when the alarm is tripped value is a file name """ sound = wx.Sound(value) self.setAlarmSound(sound) alarmTime = property(getAlarmTime,setAlarmTime,None,"") alarmDuration = property(getAlarmDuration,setAlarmDuration,None,"") alarmStaysOn = property(isAlarmStaysOn,setAlarmStaysOn,None,"") alarmSound = property(getAlarmSound,setAlarmSound,None,"") def __onDisplayUpdateTimer(self, event): """ Event handler of the __displayUpdateTimer Timer This function updates the label with the amount of mm:ss since the start of the time, and detects if the timer reached the alarm point and trips it """ #if DEBUG: print "got event %s at time %s"%(event, time.ctime()) timeInSecsSinceStart = time.time()-self.__startTime minutes = math.floor(timeInSecsSinceStart/60 % 60) secs = timeInSecsSinceStart - minutes*60 label = "%02d:%02d"%(minutes,secs); #if DEBUG: print "Current Timer Value is %.2fs (%.2fm:%.2fs)"%(timeInSecsSinceStart,minutes,secs) if (self.__alarmTimerLabel.GetLabelText()<>label): self.__alarmTimerLabel.SetLabel(label) if self._alarmTime>0 and (time.time()-self.__startTime)>self._alarmTime and not self.__alarmTripped: if DEBUG: print "Alarm tripped at time %s"%time.ctime() self.__alarmTrippedTime = time.time() self.__alarmTripped = True self.__alarmUpdateTimer.Start(self.__alarmUpdateTimerInterval) def __onAlarmUpdateTimer(self, event): """ Event handler for the __alarmUpdateTimer Timer This function blinks the display and plays the soundbyte during the alarm """ #if DEBUG: print "in onAlarmUpdateTime at time %s"%time.ctime() if self.__alarmTimerLabel.GetForegroundColour()==self.__labelNormalForeground: #if DEBUG: print "switching to alarm color" self.__alarmTimerLabel.SetForegroundColour(self.__labelAlarmForeground) if (self._alarmSound is not None) and self._alarmSound.IsOk(): self._alarmSound.Play(wx.SOUND_ASYNC) else: #if DEBUG: print "switching to normal color" self.__alarmTimerLabel.SetForegroundColour(self.__labelNormalForeground) if (self._alarmDuration>0) and (time.time()-self.__alarmTrippedTime>self._alarmDuration): if self._alarmStaysOn: self.__alarmTimerLabel.SetForegroundColour(self.__labelAlarmForeground) self.__alarmUpdateTimer.Stop() def startTimer(self): """ Start the AlarmTimer If the timer was already running, it is reset before start """ self.reset() self.__displayUpdateTimer.Start(self.__displayUpdateTimerInterval); self.__startTime = time.time() if DEBUG: print "Timer started at time %s"%(time.ctime(self.__startTime)) def reset(self): """ reset the AlarmTimer All the timers are stopped and the display is put back to 0 """ self.__displayUpdateTimer.Stop() self.__alarmUpdateTimer.Stop() self.__alarmTrippedTime = None self.__alarmTripped = False self.__startTime = None self.__alarmTimerLabel.SetLabel("00:00") self.__alarmTimerLabel.SetForegroundColour(self.__labelNormalForeground) def __onLeftDClick(self, event): """ Event handler for a double click on the AlarmTimer This action resets the timer """ self.reset() if __name__ == "__main__": app = wx.PySimpleApp(0) wx.InitAllImageHandlers() AlarmTimerFrame = AlarmTimer(None, -1, "") app.SetTopWindow(AlarmTimerFrame) AlarmTimerFrame.Show() AlarmTimerFrame.setAlarmSoundFile("./media/beep-01.wav") AlarmTimerFrame.startTimer() print AlarmTimerFrame.GetSize() app.MainLoop()