src/Computer/GlideComputerBlackboard.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
  25 #include "GlideComputerBlackboard.hpp"
  26 #include "NMEA/Info.hpp"
  27 #include "NMEA/Derived.hpp"
  28
  29 GlideComputerBlackboard::GlideComputerBlackboard()
  30 {
  31 }
  32
  33 /**
  34  * Resets the GlideComputerBlackboard
  35  * @param full Reset all data?
  36  */
  37 void
  38 GlideComputerBlackboard::ResetFlight(const bool full)
  39 {
  40   gps_info.Reset();
  41   calculated_info.Reset();
  42 }
  43
  44 /**
  45  * Starts the task on the GlideComputerBlackboard
  46  */
  47 void
  48 GlideComputerBlackboard::StartTask()
  49 {
  50   calculated_info.cruise_start_location = gps_info.location;
  51   calculated_info.cruise_start_altitude = gps_info.nav_altitude;
  52   calculated_info.cruise_start_time = gps_info.time;
  53
  54   // JMW reset time cruising/time circling stats on task start
  55   calculated_info.time_climb = fixed(0);
  56   calculated_info.time_cruise = fixed(0);
  57   calculated_info.total_height_gain = fixed(0);
  58
  59   // reset max height gain stuff on task start
  60   calculated_info.max_height_gain = fixed(0);
  61 }
  62
  63 void
  64 GlideComputerBlackboard::SaveFinish()
  65 {
  66   // JMW save calculated data at finish
  67   Finish_Derived_Info = calculated_info;
  68 }
  69
  70 void
  71 GlideComputerBlackboard::RestoreFinish()
  72 {
  73   calculated_info = Finish_Derived_Info;
  74
  75   // \todo restore flying state
  76   //  SetBasic().flying_state = flying_state;
  77 }
  78
  79 /**
  80  * Retrieves GPS data from the DeviceBlackboard
  81  * @param nmea_info New GPS data
  82  */
  83 void
  84 GlideComputerBlackboard::ReadBlackboard(const MoreData &nmea_info)
  85 {
  86   _time_retreated = nmea_info.HasTimeRetreatedSince(gps_info);
  87
  88   if (_time_retreated) {
  89     // backwards in time, so reset last
  90     last_gps_info = nmea_info;
  91     _time_retreated = true;
  92   } else if (nmea_info.time > gps_info.time) {
  93     // forwards in time, so save state
  94     last_gps_info = gps_info;
  95   }
  96
  97   gps_info = nmea_info;
  98
  99   // if time hasn't advanced, don't copy last calculated
 100 }
 101
 102 /**
 103  * Retrieves settings from the DeviceBlackboard
 104  * @param settings New settings
 105  */
 106 void
 107 GlideComputerBlackboard::ReadComputerSettings(const ComputerSettings &settings)
 108 {
 109   computer_settings = settings;
 110 }