From 4bbd16182dab69da9ca7ad13309962af40529469 Mon Sep 17 00:00:00 2001 From: Stefano Karapetsas Date: Tue, 12 Jun 2012 17:49:56 +0200 Subject: add timer-applet --- timer-applet/src/timerapplet/core/Timer.py | 175 +++++++++++++++++++++++++++++ 1 file changed, 175 insertions(+) create mode 100644 timer-applet/src/timerapplet/core/Timer.py (limited to 'timer-applet/src/timerapplet/core/Timer.py') diff --git a/timer-applet/src/timerapplet/core/Timer.py b/timer-applet/src/timerapplet/core/Timer.py new file mode 100644 index 00000000..f4ba57a2 --- /dev/null +++ b/timer-applet/src/timerapplet/core/Timer.py @@ -0,0 +1,175 @@ +# Copyright (C) 2008 Jimmy Do +# Copyright (C) 2010 Kenny Meyer +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program 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 General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +import datetime +import time +import gobject + +class Timer(gobject.GObject): + (STATE_IDLE, STATE_RUNNING, STATE_PAUSED, STATE_FINISHED) = xrange(4) + + __gsignals__ = {'time-changed': + (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ()), + 'state-changed': + (gobject.SIGNAL_RUN_LAST, gobject.TYPE_NONE, ())} + + def __init__(self): + gobject.GObject.__init__(self) + self._state = Timer.STATE_IDLE + self._duration_seconds = 0 + self._remaining_seconds = 0 + self._end_time = 0 + self._name = '' + self._command = '' + self._next_timer = '' + self._auto_start = False + + def set_duration(self, seconds): + """Set the duration of the timer in seconds.""" + assert self._state == Timer.STATE_IDLE + self._duration_seconds = seconds + + def get_duration(self): + """Return the duration of the timer in seconds.""" + return self._duration_seconds + + def set_name(self, name): + """Set the name of the timer.""" + assert self._state == Timer.STATE_IDLE + self._name = name + + def get_name(self): + """Return the name of the timer.""" + return self._name + + def set_command(self, command): + """Set the command to run of the timer.""" + assert self._state == Timer.STATE_IDLE + self._command = command + + def get_command(self): + """Return the name of the command of the timer.""" + return self._command + + def set_next_timer(self, timer): + """Set the next timeer of the timer.""" + assert self._state == Timer.STATE_IDLE + self._next_timer = timer + + def get_next_timer(self): + """Get the next timer of the timer.""" + return self._next_timer + + def set_auto_start(self, auto_start): + """Set the auto-start value of the timer.""" + assert self._state == Timer.STATE_IDLE + self._auto_start = auto_start + + def get_auto_start(self): + """Get the auto-start value.""" + return self._auto_start + + def start(self): + """Start or resume the timer. + + This method should only be called when the timer is IDLE or PAUSED. + + """ + assert self._state == Timer.STATE_IDLE or self._state == Timer.STATE_PAUSED + self._timer_transition_to_state(Timer.STATE_RUNNING) + + def stop(self): + """Pause the timer. + + This method should only be called when the timer is RUNNING. + + """ + assert self._state == Timer.STATE_RUNNING + self._timer_transition_to_state(Timer.STATE_PAUSED) + + def reset(self): + """Reset the timer. + + This method should only be called when the timer is not IDLE. + + """ + assert self._state != Timer.STATE_IDLE + self._timer_transition_to_state(Timer.STATE_IDLE) + + def get_state(self): + """Return the current state.""" + return self._state + + def get_remaining_time(self): + """Return the remaining time in seconds.""" + return min(self._duration_seconds, max(0, self._remaining_seconds)) + + def get_end_time(self): + """Return a datetime object representing the end time. + + This method should only be called when the timer is RUNNING or FINISHED. + + """ + assert self._state == Timer.STATE_RUNNING or self._state == Timer.STATE_FINISHED + return datetime.datetime.fromtimestamp(self._end_time) + + def _timer_set_state(self, state): + self._state = state + self.emit('state-changed') + + def _timer_transition_to_state(self, dest_state): + cur_time = int(time.time()) + + if dest_state == Timer.STATE_IDLE: + self._end_time = 0 + self._set_remaining_time(self._duration_seconds) + elif dest_state == Timer.STATE_RUNNING: + assert self._duration_seconds >= 0 + + if self._state == Timer.STATE_IDLE: + self._end_time = cur_time + self._duration_seconds + self._set_remaining_time(self._duration_seconds) + elif self._state == Timer.STATE_PAUSED: + self._end_time = cur_time + self._remaining_seconds + + gobject.timeout_add(500, self._on_timeout) + elif dest_state == Timer.STATE_PAUSED: + self._set_remaining_time(self._end_time - cur_time) + self._end_time = 0 + elif dest_state == Timer.STATE_FINISHED: + pass + else: + assert False + + self._timer_set_state(dest_state) + + def _on_timeout(self): + if self._state != Timer.STATE_RUNNING: + return False # remove timeout source + + new_remaining = self._end_time - int(time.time()) + if self._remaining_seconds != new_remaining: + self._set_remaining_time(new_remaining) + + if self._remaining_seconds < 0: + self._timer_transition_to_state(Timer.STATE_FINISHED) + return False # remove timeout source + return True # keep timeout source + + def _set_remaining_time(self, new_remaining): + self._remaining_seconds = new_remaining + self.emit('time-changed') -- cgit v1.2.1