src/Waypoint/WaypointList.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 XCSOAR_WAYPOINT_LIST_HPP
  25 #define XCSOAR_WAYPOINT_LIST_HPP
  26
  27 #include "Geo/GeoVector.hpp"
  28
  29 #include <vector>
  30
  31 struct Waypoint;
  32
  33 /**
  34  * Structure to hold Waypoint sorting information
  35  */
  36 struct WaypointListItem
  37 {
  38   /** Pointer to actual waypoint (unprotected!) */
  39   const Waypoint* waypoint;
  40
  41 private:
  42   /** From observer to waypoint */
  43   mutable GeoVector vec;
  44
  45 public:
  46   WaypointListItem() = default;
  47   explicit WaypointListItem(const Waypoint &_waypoint):
  48     waypoint(&_waypoint), vec(GeoVector::Invalid()) {}
  49
  50   void ResetVector();
  51   const GeoVector &GetVector(const GeoPoint &location) const;
  52 };
  53
  54 class WaypointList: public std::vector<WaypointListItem>
  55 {
  56 public:
  57   void SortByDistance(const GeoPoint &location);
  58 };
  59
  60 #endif