src/BatteryTimer.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "BatteryTimer.hpp"
  25 #include "Hardware/Battery.hpp"
  26 #include "UIActions.hpp"
  27 #include "LogFile.hpp"
  28 #include "Simulator.hpp"
  29 #include "Language/Language.hpp"
  30 #include "Message.hpp"
  31
  32 void
  33 BatteryTimer::Process()
  34 {
  35 #ifdef HAVE_BATTERY
  36   // TODO feature: Trigger a GCE (Glide Computer Event) when
  37   // switching to battery mode This can be used to warn users that
  38   // power has been lost and you are now on battery power - ie:
  39   // something else is wrong
  40
  41   UpdateBatteryInfo();
  42
  43   /* Battery status - simulator only - for safety of battery data
  44      note: Simulator only - more important to keep running in your plane
  45   */
  46
  47   // JMW, maybe this should be active always...
  48   // we don't want the PDA to be completely depleted.
  49
  50   if (Power::External::Status == Power::External::OFF) {
  51     if (is_simulator() && Power::Battery::RemainingPercentValid &&
  52         Power::Battery::RemainingPercent < BATTERY_EXIT) {
  53       LogFormat("Battery low exit...");
  54       // TODO feature: Warning message on battery shutdown
  55       UIActions::SignalShutdown(true);
  56     } else {
  57       if (Power::Battery::RemainingPercentValid &&
  58           Power::Battery::RemainingPercent < BATTERY_WARNING) {
  59         if (last_warning.CheckUpdate(BATTERY_REMINDER))
  60           // TODO feature: Show the user what the batt status is.
  61           Message::AddMessage(_("Battery low"));
  62       } else {
  63         last_warning.Reset();
  64       }
  65     }
  66   }
  67 #endif /* HAVE_BATTERY */
  68 }