src/data/waypoint.cpp

   1 #include <QDir>
   2 #include <QFileInfo>
   3 #include "dem.h"
   4 #include "waypoint.h"
   5
   6 bool Waypoint::_useDEM = false;
   7 bool Waypoint::_show2ndElevation = false;
   8 QHash<QString, QPixmap> Waypoint::_symbolIcons;
   9
  10 QPair<qreal, qreal> Waypoint::elevations() const
  11 {
  12         if (_useDEM) {
  13                 DEM::lock();
  14                 qreal dem = DEM::elevation(coordinates());
  15                 DEM::unlock();
  16                 if (!std::isnan(dem))
  17                         return QPair<qreal, qreal>(dem, _show2ndElevation ? elevation()
  18                           : NAN);
  19                 else
  20                         return QPair<qreal, qreal>(elevation(), NAN);
  21         } else {
  22                 if (hasElevation()) {
  23                         DEM::lock();
  24                         qreal dem = _show2ndElevation ? DEM::elevation(coordinates()) : NAN;
  25                         DEM::unlock();
  26                         return QPair<qreal, qreal>(elevation(), dem);
  27                 } else
  28                         return QPair<qreal, qreal>(DEM::elevation(coordinates()), NAN);
  29         }
  30 }
  31
  32 void Waypoint::loadSymbolIcons(const QString &dir)
  33 {
  34         if (dir.isEmpty())
  35                 return;
  36
  37         QDir d(dir);
  38         QFileInfoList files(d.entryInfoList(QDir::Files | QDir::Readable));
  39
  40         for (int i = 0; i < files.size(); i++) {
  41                 QPixmap pm(files.at(i).absoluteFilePath());
  42                 if (pm.isNull())
  43                         qWarning("%s: error loading image",
  44                           qPrintable(files.at(i).absoluteFilePath()));
  45                 else
  46                         _symbolIcons.insert(files.at(i).baseName(), pm);
  47         }
  48 }
  49
  50 const QPixmap *Waypoint::symbolIcon(const QString &symbol)
  51 {
  52         if (symbol.isEmpty())
  53                 return 0;
  54         QHash<QString, QPixmap>::const_iterator it(_symbolIcons.find(symbol));
  55         return (it == _symbolIcons.constEnd()) ? 0 : &*it;
  56 }