src/GUI/format.cpp

   1 #include <QApplication>
   2 #include "common/coordinates.h"
   3 #include "format.h"
   4
   5
   6 static QString deg2DMS(double val)
   7 {
   8         int deg = val;
   9         double r1 = val - deg;
  10
  11         int min = r1 * 60.0;
  12         double r2 = r1 - (min / 60.0);
  13
  14         double sec = r2 * 3600.0;
  15
  16         return QString("%1°%2'%3\"").arg(deg).arg(min, 2, 10, QChar('0'))
  17           .arg(sec, 4, 'f', 1, QChar('0'));
  18 }
  19
  20 static QString deg2DMM(double val)
  21 {
  22         int deg = val;
  23         double r1 = val - deg;
  24
  25         double min = r1 * 60.0;
  26
  27         return QString("%1°%2'").arg(deg).arg(min, 6, 'f', 3, QChar('0'));
  28 }
  29
  30
  31 QString Format::timeSpan(qreal time, bool full)
  32 {
  33         unsigned h, m, s;
  34
  35         h = time / 3600;
  36         m = (time - (h * 3600)) / 60;
  37         s = time - (h * 3600) - (m * 60);
  38
  39         if (full || h)
  40                 return QString("%1:%2:%3").arg(h, 2, 10, QChar('0'))
  41                   .arg(m, 2, 10, QChar('0')).arg(s, 2, 10, QChar('0'));
  42         else
  43                 return QString("%1:%2").arg(m, 2, 10, QChar('0'))
  44                   .arg(s, 2, 10, QChar('0'));
  45 }
  46
  47 QString Format::distance(qreal value, Units units)
  48 {
  49         QLocale l(QLocale::system());
  50
  51         if (units == Imperial) {
  52                 if (value < MIINM)
  53                         return l.toString(value * M2FT, 'f', 0) + UNIT_SPACE
  54                           + qApp->translate("Format", "ft");
  55                 else
  56                         return l.toString(value * M2MI, 'f', 1) + UNIT_SPACE
  57                           + qApp->translate("Format", "mi");
  58         } else if (units == Nautical) {
  59                 if (value < NMIINM)
  60                         return l.toString(value * M2FT, 'f', 0) + UNIT_SPACE
  61                           + qApp->translate("Format", "ft");
  62                 else
  63                         return l.toString(value * M2NMI, 'f', 1) + UNIT_SPACE
  64                           + qApp->translate("Format", "nmi");
  65         } else {
  66                 if (value < KMINM)
  67                         return l.toString(value, 'f', 0) + UNIT_SPACE
  68                           + qApp->translate("Format", "m");
  69                 else
  70                         return l.toString(value * M2KM, 'f', 1) + UNIT_SPACE
  71                           + qApp->translate("Format", "km");
  72         }
  73 }
  74
  75 QString Format::elevation(qreal value, Units units)
  76 {
  77         QLocale l(QLocale::system());
  78
  79         if (units == Metric)
  80                 return l.toString(qRound(value)) + UNIT_SPACE
  81                   + qApp->translate("Format", "m");
  82         else
  83                 return l.toString(qRound(value * M2FT)) + UNIT_SPACE
  84                   + qApp->translate("Format", "ft");
  85 }
  86
  87
  88 QString Format::lon(const Coordinates &c, CoordinatesFormat type)
  89 {
  90         QChar xH = (c.lon() < 0) ? 'W' : 'E';
  91
  92         switch (type) {
  93                 case DegreesMinutes:
  94                         return deg2DMM(qAbs(c.lon())) + xH;
  95                 case DMS:
  96                         return deg2DMS(qAbs(c.lon())) + xH;
  97                 default:
  98                         QLocale l(QLocale::system());
  99                         return l.toString(qAbs(c.lon()), 'f', 5) + xH;
 100         }
 101 }
 102
 103 QString Format::lat(const Coordinates &c, CoordinatesFormat type)
 104 {
 105         QChar yH = (c.lat() < 0) ? 'S' : 'N';
 106
 107         switch (type) {
 108                 case DegreesMinutes:
 109                         return deg2DMM(qAbs(c.lat())) + yH;
 110                 case DMS:
 111                         return deg2DMS(qAbs(c.lat())) + yH;
 112                 default:
 113                         QLocale l(QLocale::system());
 114                         return l.toString(qAbs(c.lat()), 'f', 5) + yH;
 115         }
 116 }
 117
 118 QString Format::coordinates(const Coordinates &c, CoordinatesFormat type)
 119 {
 120         return lat(c, type) + "," + QChar(0x00A0) + lon(c, type);
 121 }