src/MapWindow/MapWindowBlackboard.hpp

   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 #ifndef MAP_WINDOW_BLACKBOARD_H
  25 #define MAP_WINDOW_BLACKBOARD_H
  26
  27 #include "Blackboard/BaseBlackboard.hpp"
  28 #include "Blackboard/ComputerSettingsBlackboard.hpp"
  29 #include "Blackboard/MapSettingsBlackboard.hpp"
  30 #include "Thread/Debug.hpp"
  31 #include "UIState.hpp"
  32
  33 /**
  34  * Blackboard used by map window: provides read-only access to local
  35  * copies of data required by map window
  36  *
  37  */
  38 class MapWindowBlackboard:
  39   public BaseBlackboard,
  40   public ComputerSettingsBlackboard,
  41   public MapSettingsBlackboard
  42 {
  43   UIState ui_state;
  44
  45 protected:
  46   gcc_const
  47   const MoreData &Basic() const {
  48     assert(InDrawThread());
  49
  50     return BaseBlackboard::Basic();
  51   }
  52
  53   gcc_const
  54   const DerivedInfo &Calculated() const {
  55     assert(InDrawThread());
  56
  57     return BaseBlackboard::Calculated();
  58   }
  59
  60   gcc_const
  61   const ComputerSettings &GetComputerSettings() const {
  62     assert(InDrawThread());
  63
  64     return ComputerSettingsBlackboard::GetComputerSettings();
  65   }
  66
  67   gcc_const
  68   const MapSettings &GetMapSettings() const {
  69     assert(InDrawThread());
  70
  71     return settings_map;
  72   }
  73
  74   gcc_const
  75   const UIState &GetUIState() const {
  76     assert(InDrawThread());
  77
  78     return ui_state;
  79   }
  80
  81   void ReadBlackboard(const MoreData &nmea_info,
  82                       const DerivedInfo &derived_info);
  83   void ReadComputerSettings(const ComputerSettings &settings);
  84   void ReadMapSettings(const MapSettings &settings);
  85
  86   void ReadUIState(const UIState &new_value) {
  87     ui_state = new_value;
  88   }
  89 };
  90
  91 #endif