Do not use m/ft fractions for vertical speed

O(n^2) -> O(1)

.appveyor.yml

@@ -1,4 +1,4 @@
-version: 9.12.{build}
+version: 10.3.{build}
 
 configuration:
   - Release

.github/workflows/linux.yml

@@ -0,0 +1,24 @@
+name: Linux
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: GPXSee
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install qtbase5-dev qtbase5-private-dev qtbase5-dev-tools qt5-qmake qttools5-dev-tools libqt5opengl5-dev qtpositioning5-dev
+      - name: Create localization
+        run: lrelease gpxsee.pro
+      - name: Configure build
+        run: qmake gpxsee.pro
+      - name: Build project
+        run: make -j2

README.md

@@ -4,8 +4,8 @@ GPS log file formats.
 
 ## Features
 * Opens GPX, TCX, FIT, KML, NMEA, IGC, CUP, SIGMA SLF, Suunto SML, LOC, GeoJSON,
-  OziExplorer (PLT, RTE, WPT), Garmin GPI&CSV, TomTom OV2&ITN, ONmove OMD/GHP and
+  OziExplorer (PLT, RTE, WPT), Garmin GPI&CSV, TomTom OV2&ITN, ONmove OMD/GHP,
-  geotagged JPEG files.
+  TwoNav (TRK, RTE, WPT) and geotagged JPEG files.
 * User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS,
   QuadTiles).
 * Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases,
@@ -20,6 +20,7 @@ GPS log file formats.
 * Print/export to PDF/PNG.
 * Full-screen mode.
 * HiDPI/Retina displays & maps support.
+* Real-time GPS position.
 * Native GUI for Windows, Mac OS X and Linux.
 
 ![GPXSee - Linux](https://a.fsdn.com/con/app/proj/gpxsee/screenshots/linux2.png)

gpxsee.pro

@@ -3,7 +3,7 @@ unix:!macx {
 } else {
     TARGET = GPXSee
 }
-VERSION = 9.12
+VERSION = 10.3
 
 QT += core \
     gui \
@@ -12,7 +12,8 @@ QT += core \
     sql \
     concurrent \
     widgets \
-    printsupport
+    printsupport \
+    positioning
 greaterThan(QT_MAJOR_VERSION, 5) {
     QT += openglwidgets \
           core5compat
@@ -21,6 +22,9 @@ greaterThan(QT_MAJOR_VERSION, 5) {
 CONFIG += object_parallel_to_source
 INCLUDEPATH += ./src
 HEADERS += src/common/config.h \
+    src/GUI/crosshairitem.h \
+    src/GUI/motioninfoitem.h \
+    src/GUI/pluginparameters.h \
     src/common/garmin.h \
     src/common/coordinates.h \
     src/common/range.h \
@@ -108,6 +112,7 @@ HEADERS += src/common/config.h \
     src/GUI/pngexportdialog.h \
     src/GUI/timezoneinfo.h \
     src/GUI/passwordedit.h \
+    src/data/twonavparser.h \
     src/map/proj/polyconic.h \
     src/map/proj/webmercator.h \
     src/map/proj/transversemercator.h \
@@ -238,6 +243,9 @@ HEADERS += src/common/config.h \
     src/data/geojsonparser.h
 
 SOURCES += src/main.cpp \
+    src/GUI/crosshairitem.cpp \
+    src/GUI/motioninfoitem.cpp \
+    src/GUI/pluginparameters.cpp \
     src/common/coordinates.cpp \
     src/common/rectc.cpp \
     src/common/range.cpp \
@@ -305,6 +313,7 @@ SOURCES += src/main.cpp \
     src/GUI/pngexportdialog.cpp \
     src/GUI/projectioncombobox.cpp \
     src/GUI/passwordedit.cpp \
+    src/data/twonavparser.cpp \
     src/map/proj/polyconic.cpp \
     src/map/proj/webmercator.cpp \
     src/map/proj/transversemercator.cpp \
@@ -488,7 +497,8 @@ win32 {
         icons/formats/wld.ico \
         icons/formats/omd.ico \
         icons/formats/ghp.ico \
-        icons/formats/qct.ico
+        icons/formats/qct.ico \
+        icons/formats/trk.ico
     DEFINES += _USE_MATH_DEFINES \
         NOGDI
 }

gpxsee.qrc

@@ -49,6 +49,10 @@
 		<file alias="document-decrypt@2x.png">icons/GUI/document-decrypt.png</file>
 		<file alias="document-encrypt.png">icons/GUI/document-encrypt.png</file>
 		<file alias="document-encrypt@2x.png">icons/GUI/document-encrypt.png</file>
+		<file alias="transform-move.png">icons/GUI/transform-move.png</file>
+		<file alias="transform-move@2x.png">icons/GUI/transform-move@2x.png</file>
+		<file alias="transform-move_32.png">icons/GUI/transform-move_32.png</file>
+		<file alias="transform-move_32@2x.png">icons/GUI/transform-move_32@2x.png</file>
 	</qresource>
 
 	<!-- IMG map style -->

icons/formats/scripts/extensions

@@ -28,3 +28,4 @@ wld:#c74c8f
 omd:#ed09cb
 ghp:#ed09cb
 qct:#370642
+trk:#cccccc

pkg/Info.plist

@@ -594,6 +594,22 @@
 			<key>CFBundleTypeRole</key>
 			<string>Viewer</string>
 		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>trk</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.twonav.trk</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>icons/trk.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>TwoNav Track File</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
 	</array>
 
 	<key>UTImportedTypeDeclarations</key>
@@ -1407,6 +1423,29 @@
 				<string>application/vnd.memory-map.qct</string>
 			</dict>
 		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>com.twonav.trk</string>
+			<key>UTTypeReferenceURL</key>
+			<string>https://github.com/GPSBabel/gpsbabel/blob/master/deprecated/compegps.cc</string>
+			<key>UTTypeDescription</key>
+			<string>TwoNav Track File</string>
+			<key>UTTypeIconFile</key>
+			<string>icons/trk.icns</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>trk</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.twonav.trk</string>
+			</dict>
+		</dict>
 	</array>
 
 	<key>UTExportedTypeDeclarations</key>

pkg/appdata.xml

@@ -14,8 +14,8 @@
 		<ul>
 			<li>Opens GPX, TCX, FIT, KML, IGC, NMEA, SIGMA SLF, Suunto SML, LOC,
 				OziExplorer (PLT, WPT, RTE), GeoJSON, SeeYou CUP,
-				Garmin GPI &amp; CSV, TomTom OV2 &amp; ITN, ONmove OMD/GHP
+				Garmin GPI &amp; CSV, TomTom OV2 &amp; ITN, ONmove OMD/GHP,
-				and geotagged JPEG files.</li>
+				TwoNav (TRK, RTE, WPT) and geotagged JPEG files.</li>
 			<li>User-definable online maps (OpenStreetMap/Google tiles, WMTS,
 				WMS, TMS, QuadTiles).</li>
 			<li>Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases,
@@ -30,6 +30,7 @@
 			<li>Print/export to PDF &amp; PNG.</li>
 			<li>Full-screen mode.</li>
 			<li>HiDPI/Retina displays &amp; maps support.</li>
+			<li>Real-time GPS position.</li>
 		</ul>
 	</description>
 
@@ -98,5 +99,8 @@
 		<mimetype>application/vnd.onmove.omd</mimetype>
 		<mimetype>application/vnd.onmove.ghp</mimetype>
 		<mimetype>application/vnd.memory-map.qct</mimetype>
+		<mimetype>application/vnd.twonav.trk</mimetype>
+		<mimetype>application/vnd.twonav.rte</mimetype>
+		<mimetype>application/vnd.twonav.wpt</mimetype>
 	</mimetypes>
 </component>

pkg/gpxsee.desktop

@@ -15,4 +15,4 @@ Icon=gpxsee
 Terminal=false
 Type=Application
 Categories=Graphics;Viewer;Education;Geography;Maps;Sports;Qt
-MimeType=application/gpx+xml;application/vnd.garmin.tcx+xml;application/vnd.ant.fit;application/vnd.google-earth.kml+xml;application/vnd.fai.igc;application/vnd.nmea.nmea;application/vnd.oziexplorer.plt;application/vnd.oziexplorer.rte;application/vnd.oziexplorer.wpt;application/vnd.groundspeak.loc+xml;application/vnd.sigma.slf+xml;application/geo+json;application/vnd.naviter.seeyou.cup;application/vnd.garmin.gpi;application/vnd.suunto.sml+xml;image/jpeg;text/csv;application/vnd.garmin.img;application/vnd.garmin.jnx;application/vnd.garmin.gmap+xml;image/vnd.maptech.kap;application/vnd.oziexplorer.map;application/vnd.mapbox.mbtiles;application/vnd.twonav.rmap;application/vnd.trekbuddy.tba;application/vnd.gpxsee.map+xml;application/x-tar;image/tiff;application/vnd.google-earth.kmz;application/vnd.alpinequest.aqm;application/vnd.rmaps.sqlite;application/vnd.mapsforge.map;application/vnd.tomtom.ov2;application/vnd.tomtom.itn;application/vnd.esri.wld
+MimeType=application/gpx+xml;application/vnd.garmin.tcx+xml;application/vnd.ant.fit;application/vnd.google-earth.kml+xml;application/vnd.fai.igc;application/vnd.nmea.nmea;application/vnd.oziexplorer.plt;application/vnd.oziexplorer.rte;application/vnd.oziexplorer.wpt;application/vnd.groundspeak.loc+xml;application/vnd.sigma.slf+xml;application/geo+json;application/vnd.naviter.seeyou.cup;application/vnd.garmin.gpi;application/vnd.suunto.sml+xml;image/jpeg;text/csv;application/vnd.garmin.img;application/vnd.garmin.jnx;application/vnd.garmin.gmap+xml;image/vnd.maptech.kap;application/vnd.oziexplorer.map;application/vnd.mapbox.mbtiles;application/vnd.twonav.rmap;application/vnd.trekbuddy.tba;application/vnd.gpxsee.map+xml;application/x-tar;image/tiff;application/vnd.google-earth.kmz;application/vnd.alpinequest.aqm;application/vnd.rmaps.sqlite;application/vnd.mapsforge.map;application/vnd.tomtom.ov2;application/vnd.tomtom.itn;application/vnd.esri.wld;application/vnd.onmove.omd;application/vnd.onmove.ghp;application/vnd.memory-map.qct;application/vnd.twonav.trk;application/vnd.twonav.rte;application/vnd.twonav.wpt

pkg/gpxsee.xml

@@ -156,6 +156,28 @@
 		<glob pattern="*.ghp"/>
 	</mime-type>
 
+	<mime-type type="application/vnd.twonav.trk">
+		<comment>TwoNav Track File</comment>
+		<sub-class-of type="text/plain"/>
+		<generic-icon name="text/plain"/>
+		<glob pattern="*.trk"/>
+	</mime-type>
+
+	<mime-type type="application/vnd.twonav.rte">
+		<comment>TwoNav Route File</comment>
+		<sub-class-of type="text/plain"/>
+		<generic-icon name="text/plain"/>
+		<glob pattern="*.rte"/>
+	</mime-type>
+
+	<mime-type type="application/vnd.twonav.wpt">
+		<comment>TwoNav Waypoint File</comment>
+		<sub-class-of type="text/plain"/>
+		<generic-icon name="text/plain"/>
+		<glob pattern="*.wpt"/>
+	</mime-type>
+
+
 	<!-- Maps -->
 
 	<mime-type type="application/vnd.garmin.img">

pkg/gpxsee64.nsi

@@ -37,7 +37,7 @@ Unicode true
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "9.12"
+!define VERSION "10.3"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"
@@ -178,13 +178,14 @@ Section "GPXSee" SEC_APP
   !insertmacro FILE_ASSOCIATION_ADD "tcx" "Training Center XML" 22
   !insertmacro FILE_ASSOCIATION_ADD "ghp" "ONmove Log File" 23
   !insertmacro FILE_ASSOCIATION_ADD "qct" "QuickChart Map File" 24
-  !insertmacro FILE_ASSOCIATION_ADD "kml" "Keyhole Markup Language" 25
+  !insertmacro FILE_ASSOCIATION_ADD "trk" "TwoNav Track File" 25
-  !insertmacro FILE_ASSOCIATION_ADD "kmz" "KML geographic compressed data" 25
+  !insertmacro FILE_ASSOCIATION_ADD "kml" "Keyhole Markup Language" 26
-  !insertmacro FILE_ASSOCIATION_ADD "fit" "Flexible and Interoperable Data Transfer" 26
+  !insertmacro FILE_ASSOCIATION_ADD "kmz" "KML geographic compressed data" 26
-  !insertmacro FILE_ASSOCIATION_ADD "igc" "Flight Recorder Data Format" 27
+  !insertmacro FILE_ASSOCIATION_ADD "fit" "Flexible and Interoperable Data Transfer" 27
-  !insertmacro FILE_ASSOCIATION_ADD "nmea" "NMEA 0183 Data" 28
+  !insertmacro FILE_ASSOCIATION_ADD "igc" "Flight Recorder Data Format" 28
-  !insertmacro FILE_ASSOCIATION_ADD "plt" "OziExplorer Track File" 29
+  !insertmacro FILE_ASSOCIATION_ADD "nmea" "NMEA 0183 Data" 29
-  !insertmacro FILE_ASSOCIATION_ADD "rte" "OziExplorer Route File" 30
+  !insertmacro FILE_ASSOCIATION_ADD "plt" "OziExplorer Track File" 30
+  !insertmacro FILE_ASSOCIATION_ADD "rte" "OziExplorer Route File" 31
 
   WriteRegStr HKCR "Applications\GPXSee.exe\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
   WriteRegStr HKCR ".gpx\OpenWithList" "GPXSee.exe" ""
@@ -231,6 +232,7 @@ Section "GPXSee" SEC_APP
   WriteRegStr HKCR ".omd\OpenWithList" "GPXSee.exe" ""
   WriteRegStr HKCR ".ghp\OpenWithList" "GPXSee.exe" ""
   WriteRegStr HKCR ".qct\OpenWithList" "GPXSee.exe" ""
+  WriteRegStr HKCR ".trk\OpenWithList" "GPXSee.exe" ""
 
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
@@ -252,6 +254,9 @@ Section "QT framework" SEC_QT
   File "Qt6Svg.dll"
   File "Qt6Widgets.dll"
   File "Qt6Core5Compat.dll"
+  File "Qt6Positioning.dll"
+  File "Qt6SerialPort.dll"
+  File /r "tls"
 !else
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
@@ -261,12 +266,15 @@ Section "QT framework" SEC_QT
   File "Qt5Sql.dll"
   File "Qt5Svg.dll"
   File "Qt5Concurrent.dll"
+  File "Qt5Positioning.dll"
+  File "Qt5SerialPort.dll" 
   File /r "printsupport"
 !endif
   File /r "platforms"
   File /r "imageformats"
   File /r "styles"
   File /r "sqldrivers"
+  File /r "position"
 
 SectionEnd
 
@@ -376,6 +384,7 @@ Section "Uninstall"
   !insertmacro FILE_ASSOCIATION_REMOVE "omd"
   !insertmacro FILE_ASSOCIATION_REMOVE "ghp"
   !insertmacro FILE_ASSOCIATION_REMOVE "qct"
+  !insertmacro FILE_ASSOCIATION_REMOVE "trk"
 
   DeleteRegValue HKCR ".gpx\OpenWithList" "GPXSee.exe"
   DeleteRegValue HKCR ".tcx\OpenWithList" "GPXSee.exe"
@@ -421,6 +430,7 @@ Section "Uninstall"
   DeleteRegValue HKCR ".omd\OpenWithList" "GPXSee.exe"
   DeleteRegValue HKCR ".ghp\OpenWithList" "GPXSee.exe"
   DeleteRegValue HKCR ".qct\OpenWithList" "GPXSee.exe"
+  DeleteRegValue HKCR ".trk\OpenWithList" "GPXSee.exe"
   DeleteRegKey HKCR "Applications\GPXSee.exe"   
   
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
@@ -453,4 +463,4 @@ LangString DESC_LOCALIZATION ${LANG_ENGLISH} \
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_LOCALIZATION} $(DESC_LOCALIZATION)
-!insertmacro MUI_FUNCTION_DESCRIPTION_END
+!insertmacro MUI_FUNCTION_DESCRIPTION_END

src/GUI/coordinatesitem.cpp

@@ -7,10 +7,13 @@
 CoordinatesItem::CoordinatesItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
 	_format = DecimalDegrees;
-
+	_units = Metric;
+	_ele = NAN;
+	_color = Qt::black;
+	_bgColor = Qt::white;
+	_drawBackground = false;
 	_font.setPixelSize(FONT_SIZE);
 	_font.setFamily(FONT_FAMILY);
-
 	_digitalZoom = 0;
 
 	setAcceptHoverEvents(true);
@@ -27,24 +30,36 @@ void CoordinatesItem::paint(QPainter *painter,
 	if (!_c.isValid())
 		return;
 
+	if (_drawBackground) {
+		painter->setPen(Qt::NoPen);
+		QColor bc(_bgColor);
+		bc.setAlpha(196);
+		painter->setBrush(QBrush(bc));
+		painter->drawRect(_boundingRect);
+		painter->setBrush(Qt::NoBrush);
+	}
+
 	QFontMetrics fm(_font);
 	painter->setFont(_font);
-	painter->setPen(QPen(Qt::black));
+	painter->setPen(QPen(_color));
-	painter->drawText(0, -fm.descent(), Format::coordinates(_c, _format));
+	painter->drawText(0, -fm.descent(), text());
 
-/*
+	//painter->setPen(Qt::red);
-	painter->setPen(Qt::red);
+	//painter->drawRect(boundingRect());
-	painter->drawRect(boundingRect());
-*/
 }
 
-void CoordinatesItem::setCoordinates(const Coordinates &c)
+void CoordinatesItem::setCoordinates(const Coordinates &c, qreal elevation)
 {
+	prepareGeometryChange();
+
 	_c = c;
+	_ele = elevation;
+
+	updateBoundingRect();
 	update();
 }
 
-void CoordinatesItem::setFormat(const CoordinatesFormat &format)
+void CoordinatesItem::setFormat(CoordinatesFormat format)
 {
 	prepareGeometryChange();
 
@@ -52,16 +67,54 @@ void CoordinatesItem::setFormat(const CoordinatesFormat &format)
 	updateBoundingRect();
 }
 
+void CoordinatesItem::setUnits(Units units)
+{
+	prepareGeometryChange();
+
+	_units = units;
+	updateBoundingRect();
+}
+
 void CoordinatesItem::setDigitalZoom(qreal zoom)
 {
 	_digitalZoom = zoom;
 	setScale(pow(2, -_digitalZoom));
 }
 
+QString CoordinatesItem::text() const
+{
+	return (std::isnan(_ele))
+	  ? Format::coordinates(_c, _format)
+	  : Format::coordinates(_c, _format) + ", " + Format::elevation(_ele, _units);
+}
+
 void CoordinatesItem::updateBoundingRect()
 {
 	QFontMetrics fm(_font);
-	_boundingRect = fm.tightBoundingRect(Format::coordinates(
+
-	  Coordinates(-180, -90), _format));
+	QRectF br(fm.tightBoundingRect(text()));
-	_boundingRect.moveBottom(-fm.descent());
+	QRectF r1(br);
+	QRectF r2(br);
+	r1.moveTop(-fm.ascent());
+	r2.moveBottom(-fm.descent());
+
+	_boundingRect = r1 | r2;
+}
+
+void CoordinatesItem::setColor(const QColor &color)
+{
+	_color = color;
+	update();
+}
+
+void CoordinatesItem::setBackgroundColor(const QColor &color)
+{
+	_bgColor = color;
+	update();
+}
+
+void CoordinatesItem::drawBackground(bool draw)
+{
+	_drawBackground = draw;
+	update();
 }

src/GUI/coordinatesitem.h

@@ -17,18 +17,27 @@ public:
 
 	CoordinatesFormat format() const {return _format;}
 
-	void setCoordinates(const Coordinates &c);
+	void setCoordinates(const Coordinates &c, qreal elevation = NAN);
-	void setFormat(const CoordinatesFormat &format);
+	void setFormat(CoordinatesFormat format);
+	void setUnits(Units units);
 	void setDigitalZoom(qreal zoom);
+	void setColor(const QColor &color);
+	void setBackgroundColor(const QColor &color);
+	void drawBackground(bool draw);
 
 private:
 	void updateBoundingRect();
+	QString text() const;
 
 	Coordinates _c;
+	qreal _ele;
 	CoordinatesFormat _format;
+	Units _units;
 	QRectF _boundingRect;
 	QFont _font;
 	qreal _digitalZoom;
+	QColor _color, _bgColor;
+	bool _drawBackground;
 };
 
 #endif // COORDINATESITEM_H

src/GUI/crosshairitem.cpp

@@ -0,0 +1,45 @@
+#include <QPainter>
+#include "crosshairitem.h"
+
+#define SIZE  16
+#define WIDTH 2
+
+CrosshairItem::CrosshairItem(QGraphicsItem *parent) : QGraphicsItem(parent)
+{
+	_color = Qt::red;
+	_digitalZoom = 0;
+}
+
+QRectF CrosshairItem::boundingRect() const
+{
+	return QRectF(-SIZE/2, -SIZE/2, SIZE, SIZE);
+}
+
+void CrosshairItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+
+	painter->setRenderHint(QPainter::Antialiasing, false);
+	painter->setPen(QPen(_color, WIDTH));
+
+	painter->drawLine(-SIZE/2, 0, -SIZE/4, 0);
+	painter->drawLine(SIZE/4, 0, SIZE/2, 0);
+	painter->drawLine(0, -SIZE/2, 0, -SIZE/4);
+	painter->drawLine(0, SIZE/4, 0, SIZE/2);
+
+	//painter->drawRect(boundingRect());
+}
+
+void CrosshairItem::setDigitalZoom(qreal zoom)
+{
+	_digitalZoom = zoom;
+	setScale(pow(2, -_digitalZoom));
+}
+
+void CrosshairItem::setColor(const QColor &color)
+{
+	_color = color;
+	update();
+}

src/GUI/crosshairitem.h

@@ -0,0 +1,30 @@
+#ifndef CROSSHAIRITEM_H
+#define CROSSHAIRITEM_H
+
+#include <QGraphicsItem>
+#include "map/map.h"
+
+class CrosshairItem : public QGraphicsItem
+{
+public:
+	CrosshairItem(QGraphicsItem *parent = 0);
+
+	QRectF boundingRect() const;
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	const Coordinates &coordinates() const {return _c;}
+	const QColor &color() const {return _color;}
+
+	void setCoordinates(const Coordinates &c) {_c = c;}
+	void setMap(Map *map) {setPos(map->ll2xy(_c));}
+	void setDigitalZoom(qreal zoom);
+	void setColor(const QColor &color);
+
+private:
+	Coordinates _c;
+	QColor _color;
+	qreal _digitalZoom;
+};
+
+#endif // CROSSHAIRITEM_H

src/GUI/gui.cpp

@@ -25,6 +25,7 @@
 #include <QScreen>
 #include <QStyle>
 #include <QTabBar>
+#include <QGeoPositionInfoSource>
 #include "common/programpaths.h"
 #include "common/downloader.h"
 #include "data/data.h"
@@ -327,7 +328,32 @@ void GUI::createActions()
 	_showCoordinatesAction->setMenuRole(QAction::NoRole);
 	_showCoordinatesAction->setCheckable(true);
 	connect(_showCoordinatesAction, &QAction::triggered, _mapView,
-	  &MapView::showCoordinates);
+	  &MapView::showCursorCoordinates);
+
+	// Position
+	_showPositionAction = new QAction(QIcon(SHOW_POS_ICON),
+	  tr("Show position"), this);
+	_showPositionAction->setMenuRole(QAction::NoRole);
+	_showPositionAction->setCheckable(true);
+	_showPositionAction->setEnabled(false);
+	connect(_showPositionAction, &QAction::triggered, _mapView,
+	  &MapView::showPosition);
+	_followPositionAction = new QAction(tr("Follow position"), this);
+	_followPositionAction->setMenuRole(QAction::NoRole);
+	_followPositionAction->setCheckable(true);
+	connect(_followPositionAction, &QAction::triggered, _mapView,
+	  &MapView::followPosition);
+	_showPositionCoordinatesAction = new QAction(tr("Show coordinates"),
+	  this);
+	_showPositionCoordinatesAction->setMenuRole(QAction::NoRole);
+	_showPositionCoordinatesAction->setCheckable(true);
+	connect(_showPositionCoordinatesAction, &QAction::triggered, _mapView,
+	  &MapView::showPositionCoordinates);
+	_showMotionInfo = new QAction(tr("Show motion info"), this);
+	_showMotionInfo->setMenuRole(QAction::NoRole);
+	_showMotionInfo->setCheckable(true);
+	connect(_showMotionInfo, &QAction::triggered, _mapView,
+	  &MapView::showMotionInfo);
 
 	// Data actions
 	_showTracksAction = new QAction(tr("Show tracks"), this);
@@ -613,6 +639,13 @@ void GUI::createMenus()
 	demMenu->addAction(_showDEMTilesAction);
 	demMenu->addAction(_downloadDEMAction);
 
+	QMenu *positionMenu = menuBar()->addMenu(tr("Position"));
+	positionMenu->addAction(_showPositionCoordinatesAction);
+	positionMenu->addAction(_showMotionInfo);
+	positionMenu->addAction(_followPositionAction);
+	positionMenu->addSeparator();
+	positionMenu->addAction(_showPositionAction);
+
 	QMenu *settingsMenu = menuBar()->addMenu(tr("&Settings"));
 	QMenu *timeMenu = settingsMenu->addMenu(tr("Time"));
 	timeMenu->addAction(_totalTimeAction);
@@ -663,6 +696,7 @@ void GUI::createToolBars()
 	_showToolBar->addAction(_showPOIAction);
 	_showToolBar->addAction(_showMapAction);
 	_showToolBar->addAction(_showGraphsAction);
+	_showToolBar->addAction(_showPositionAction);
 
 	_navigationToolBar = addToolBar(tr("Navigation"));
 	_navigationToolBar->setObjectName("Navigation");
@@ -676,7 +710,7 @@ void GUI::createToolBars()
 void GUI::createMapView()
 {
 	_map = new EmptyMap(this);
-	_mapView = new MapView(_map, _poi, this);
+	_mapView = new MapView(_map, _poi, 0, this);
 	_mapView->setSizePolicy(QSizePolicy(QSizePolicy::Ignored,
 	  QSizePolicy::Expanding));
 	_mapView->setMinimumHeight(200);
@@ -1018,6 +1052,19 @@ void GUI::openOptions()
 	SET_VIEW_OPTION(pathAntiAliasing, useAntiAliasing);
 	SET_VIEW_OPTION(useOpenGL, useOpenGL);
 	SET_VIEW_OPTION(sliderColor, setMarkerColor);
+	SET_VIEW_OPTION(crosshairColor, setCrosshairColor);
+	SET_VIEW_OPTION(infoColor, setInfoColor);
+	SET_VIEW_OPTION(infoBackground, drawInfoBackground);
+
+	if (options.plugin != _options.plugin
+	  || options.pluginParams.value(options.plugin)
+	  != _options.pluginParams.value(_options.plugin)) {
+		QGeoPositionInfoSource *source = positionSource(options);
+		_showPositionAction->setEnabled(source != 0);
+		_mapView->setPositionSource(source);
+		delete _positionSource;
+		_positionSource = source;
+	}
 
 	if (options.hidpiMap != _options.hidpiMap)
 		_mapView->setDevicePixelRatio(devicePixelRatioF(),
@@ -2096,8 +2143,27 @@ void GUI::dropEvent(QDropEvent *event)
 	event->acceptProposedAction();
 }
 
+QGeoPositionInfoSource *GUI::positionSource(const Options &options)
+{
+	QGeoPositionInfoSource *source;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
+	source = QGeoPositionInfoSource::createSource(options.plugin, this);
+#else // QT 5.14
+	source = QGeoPositionInfoSource::createSource(options.plugin,
+	  options.pluginParams.value(options.plugin), this);
+#endif // QT 5.14
+	if (source)
+		source->setPreferredPositioningMethods(
+		  QGeoPositionInfoSource::SatellitePositioningMethods);
+
+	return source;
+}
+
 void GUI::writeSettings()
 {
+	int index;
+
 	QSettings settings(qApp->applicationName(), qApp->applicationName());
 	settings.clear();
 
@@ -2133,8 +2199,8 @@ void GUI::writeSettings()
 	settings.setValue(CURRENT_MAP_SETTING, _map->name());
 	if (_showMapAction->isChecked() != SHOW_MAP_DEFAULT)
 		settings.setValue(SHOW_MAP_SETTING, _showMapAction->isChecked());
-	if (_showCoordinatesAction->isChecked() != SHOW_COORDINATES_DEFAULT)
+	if (_showCoordinatesAction->isChecked() != SHOW_CURSOR_COORDINATES_DEFAULT)
-		settings.setValue(SHOW_COORDINATES_SETTING,
+		settings.setValue(SHOW_CURSOR_COORDINATES_SETTING,
 		  _showCoordinatesAction->isChecked());
 	settings.endGroup();
 
@@ -2165,21 +2231,37 @@ void GUI::writeSettings()
 		settings.setValue(SHOW_POI_ICONS_SETTING,
 		  _showPOIIconsAction->isChecked());
 
-	int j = 0;
+	index = 0;
 	QList<QAction*> poiActions(_poisActionGroup->actions());
 	for (int i = 0; i < poiActions.count(); i++) {
 		POIAction *a = static_cast<POIAction*>(poiActions.at(i));
 		if (!a->isChecked()) {
-			if (j == 0)
+			if (index == 0)
 				settings.beginWriteArray(DISABLED_POI_FILE_SETTINGS_PREFIX);
-			settings.setArrayIndex(j++);
+			settings.setArrayIndex(index++);
 			settings.setValue(DISABLED_POI_FILE_SETTING, a->data().toString());
 		}
 	}
-	if (j != 0)
+	if (index != 0)
 		settings.endArray();
 	settings.endGroup();
 
+	settings.beginGroup(POSITION_SETTINGS_GROUP);
+	if (_showPositionAction->isChecked() != SHOW_POSITION_DEFAULT)
+		settings.setValue(SHOW_POSITION_SETTING,
+		  _showPositionAction->isChecked());
+	if (_followPositionAction->isChecked() != FOLLOW_POSITION_DEFAULT)
+		settings.setValue(FOLLOW_POSITION_SETTING,
+		  _followPositionAction->isChecked());
+	if (_showPositionCoordinatesAction->isChecked()
+	  != SHOW_POSITION_COORDINATES_DEFAULT)
+		settings.setValue(SHOW_POSITION_COORDINATES_SETTING,
+		  _showPositionCoordinatesAction->isChecked());
+	if (_showMotionInfo->isChecked() != SHOW_MOTION_INFO_DEFAULT)
+		settings.setValue(SHOW_MOTION_INFO_SETTING,
+		  _showMotionInfo->isChecked());
+	settings.endGroup();
+
 	settings.beginGroup(DATA_SETTINGS_GROUP);
 	if (_showTracksAction->isChecked() != SHOW_TRACKS_DEFAULT)
 		settings.setValue(SHOW_TRACKS_SETTING, _showTracksAction->isChecked());
@@ -2262,6 +2344,12 @@ void GUI::writeSettings()
 		settings.setValue(MAP_OPACITY_SETTING, _options.mapOpacity);
 	if (_options.backgroundColor != BACKGROUND_COLOR_DEFAULT)
 		settings.setValue(BACKGROUND_COLOR_SETTING, _options.backgroundColor);
+	if (_options.crosshairColor != CROSSHAIR_COLOR_DEFAULT)
+		settings.setValue(CROSSHAIR_COLOR_SETTING, _options.crosshairColor);
+	if (_options.infoColor != INFO_COLOR_DEFAULT)
+		settings.setValue(INFO_COLOR_SETTING, _options.infoColor);
+	if (_options.infoBackground != INFO_BACKGROUND_DEFAULT)
+		settings.setValue(INFO_BACKGROUND_SETTING, _options.infoBackground);
 	if (_options.trackWidth != TRACK_WIDTH_DEFAULT)
 		settings.setValue(TRACK_WIDTH_SETTING, _options.trackWidth);
 	if (_options.routeWidth != ROUTE_WIDTH_DEFAULT)
@@ -2333,6 +2421,22 @@ void GUI::writeSettings()
 		settings.setValue(DEM_USERNAME_SETTING, _options.demUsername);
 	if (_options.demPassword != DEM_PASSWORD_DEFAULT)
 		settings.setValue(DEM_PASSWORD_SETTING, _options.demPassword);
+	// the plugins order is random so always store the value
+	settings.setValue(POSITION_PLUGIN_SETTING, _options.plugin);
+	index = 0;
+	for (QMap<QString, QVariantMap>::const_iterator it
+	  = _options.pluginParams.constBegin();
+	  it != _options.pluginParams.constEnd(); ++it) {
+		if (!it.value().isEmpty()) {
+			if (index == 0)
+				settings.beginWriteArray(POSITION_PLUGIN_PARAMS_PREFIX);
+			settings.setArrayIndex(index++);
+			settings.setValue(POSITION_PLUGIN_PARAMS_PLUGIN, it.key());
+			settings.setValue(POSITION_PLUGIN_PARAMS_PARAM, it.value());
+		}
+	}
+	if (index != 0)
+		settings.endArray();
 	if (_options.useOpenGL != USE_OPENGL_DEFAULT)
 		settings.setValue(USE_OPENGL_SETTING, _options.useOpenGL);
 	if (_options.enableHTTP2 != ENABLE_HTTP2_DEFAULT)
@@ -2419,10 +2523,10 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 		_showMapAction->setChecked(true);
 	else
 		_mapView->showMap(false);
-	if (settings.value(SHOW_COORDINATES_SETTING, SHOW_COORDINATES_DEFAULT)
+	if (settings.value(SHOW_CURSOR_COORDINATES_SETTING, SHOW_CURSOR_COORDINATES_DEFAULT)
 	  .toBool()) {
 		_showCoordinatesAction->setChecked(true);
-		_mapView->showCoordinates(true);
+		_mapView->showCursorCoordinates(true);
 	}
 	activeMap = settings.value(CURRENT_MAP_SETTING).toString();
 	settings.endGroup();
@@ -2577,6 +2681,12 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	  MAP_OPACITY_DEFAULT).toInt();
 	_options.backgroundColor = settings.value(BACKGROUND_COLOR_SETTING,
 	  BACKGROUND_COLOR_DEFAULT).value<QColor>();
+	_options.crosshairColor = settings.value(CROSSHAIR_COLOR_SETTING,
+	  CROSSHAIR_COLOR_DEFAULT).value<QColor>();
+	_options.infoColor = settings.value(INFO_COLOR_SETTING,
+	  INFO_COLOR_DEFAULT).value<QColor>();
+	_options.infoBackground = settings.value(INFO_BACKGROUND_SETTING,
+	  INFO_BACKGROUND_DEFAULT).toBool();
 	_options.trackWidth = settings.value(TRACK_WIDTH_SETTING,
 	  TRACK_WIDTH_DEFAULT).toInt();
 	_options.routeWidth = settings.value(ROUTE_WIDTH_SETTING,
@@ -2645,6 +2755,16 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	  DEM_USERNAME_DEFAULT).toString();
 	_options.demPassword = settings.value(DEM_PASSWORD_SETTING,
 	  DEM_PASSWORD_DEFAULT).toString();
+	_options.plugin = settings.value(POSITION_PLUGIN_SETTING,
+	  POSITION_PLUGIN_DEFAULT).toString();
+	size = settings.beginReadArray(POSITION_PLUGIN_PARAMS_PREFIX);
+	for (int i = 0; i < size; i++) {
+		settings.setArrayIndex(i);
+		_options.pluginParams.insert(
+		  settings.value(POSITION_PLUGIN_PARAMS_PLUGIN).toString(),
+		  settings.value(POSITION_PLUGIN_PARAMS_PARAM).toMap());
+	}
+	settings.endArray();
 	_options.useOpenGL = settings.value(USE_OPENGL_SETTING, USE_OPENGL_DEFAULT)
 	  .toBool();
 	_options.enableHTTP2 = settings.value(ENABLE_HTTP2_SETTING,
@@ -2683,10 +2803,30 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	  .toString();
 	_options.poiPath = settings.value(POI_PATH_SETTING, POI_PATH_DEFAULT)
 	  .toString();
+	settings.endGroup();
+
+	_positionSource = positionSource(_options);
+	_showPositionAction->setEnabled(_positionSource != 0);
+
+	settings.beginGroup(POSITION_SETTINGS_GROUP);
+	if (settings.value(SHOW_POSITION_SETTING, SHOW_POSITION_DEFAULT).toBool())
+		_showPositionAction->trigger();
+	if (settings.value(FOLLOW_POSITION_SETTING, FOLLOW_POSITION_DEFAULT).toBool())
+		_followPositionAction->trigger();
+	if (settings.value(SHOW_POSITION_COORDINATES_SETTING,
+	  SHOW_POSITION_COORDINATES_DEFAULT).toBool())
+		_showPositionCoordinatesAction->trigger();
+	if (settings.value(SHOW_MOTION_INFO_SETTING, SHOW_MOTION_INFO_DEFAULT)
+	  .toBool())
+		_showMotionInfo->trigger();
+	settings.endGroup();
 
 	_mapView->setPalette(_options.palette);
 	_mapView->setMapOpacity(_options.mapOpacity);
 	_mapView->setBackgroundColor(_options.backgroundColor);
+	_mapView->setCrosshairColor(_options.crosshairColor);
+	_mapView->setInfoColor(_options.infoColor);
+	_mapView->drawInfoBackground(_options.infoBackground);
 	_mapView->setTrackWidth(_options.trackWidth);
 	_mapView->setRouteWidth(_options.routeWidth);
 	_mapView->setAreaWidth(_options.areaWidth);
@@ -2707,6 +2847,7 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	_mapView->setOutputProjection(CRS::projection(_options.outputProjection));
 	_mapView->setInputProjection(CRS::projection(_options.inputProjection));
 	_mapView->setTimeZone(_options.timeZone.zone());
+	_mapView->setPositionSource(_positionSource);
 
 	for (int i = 0; i < _tabs.count(); i++) {
 		_tabs.at(i)->setPalette(_options.palette);
@@ -2752,8 +2893,6 @@ void GUI::readSettings(QString &activeMap, QStringList &disabledPOIs)
 	_dataDir = _options.dataPath;
 	_mapDir = _options.mapsPath;
 	_poiDir = _options.poiPath;
-
-	settings.endGroup();
 }
 
 void GUI::loadInitialMaps(const QString &selected)

src/GUI/gui.h

@@ -24,6 +24,7 @@ class QAction;
 class QLabel;
 class QSplitter;
 class QPrinter;
+class QGeoPositionInfoSource;
 class FileBrowser;
 class GraphTab;
 class MapView;
@@ -157,6 +158,7 @@ private:
 	qreal time() const;
 	qreal movingTime() const;
 	QAction *mapAction(const QString &name);
+	QGeoPositionInfoSource *positionSource(const Options &options);
 	void readSettings(QString &activeMap, QStringList &disabledPOIs);
 	void writeSettings();
 
@@ -198,6 +200,10 @@ private:
 	QAction *_showPOILabelsAction;
 	QAction *_showPOIIconsAction;
 	QAction *_showMapAction;
+	QAction *_showPositionAction;
+	QAction *_followPositionAction;
+	QAction *_showPositionCoordinatesAction;
+	QAction *_showMotionInfo;
 	QAction *_fullscreenAction;
 	QAction *_loadMapAction;
 	QAction *_loadMapDirAction;
@@ -253,6 +259,7 @@ private:
 
 	POI *_poi;
 	Map *_map;
+	QGeoPositionInfoSource *_positionSource;
 	DEMLoader *_dem;
 
 	FileBrowser *_browser;

src/GUI/icons.h

@@ -18,6 +18,7 @@
 #define LAST_FILE_ICON    ":/arrow-right-double.png"
 #define FIRST_FILE_ICON   ":/arrow-left-double.png"
 #define FULLSCREEN_ICON   ":/view-fullscreen.png"
+#define SHOW_POS_ICON     ":/transform-move.png"
 
 // Options dialog icons
 #define APPEARANCE_ICON   ":/format-stroke-color.png"
@@ -27,6 +28,7 @@
 #define DATA_ICON         ":/view-filter.png"
 #define MAPS_ICON         ":/applications-internet_32.png"
 #define DEM_ICON          ":/view-grid.png"
+#define POSITION_ICON     ":/transform-move_32.png"
 
 #define SHOW_PWD_ICON     ":/document-encrypt.png"
 #define HIDE_PWD_ICON     ":/document-decrypt.png"

src/GUI/mapview.cpp

@@ -5,8 +5,10 @@
 #include <QScrollBar>
 #include <QClipboard>
 #include <QOpenGLWidget>
+#include <QGeoPositionInfoSource>
 #include "data/poi.h"
 #include "data/data.h"
+#include "data/dem.h"
 #include "map/map.h"
 #include "map/pcs.h"
 #include "trackitem.h"
@@ -20,6 +22,8 @@
 #include "graphicsscene.h"
 #include "mapaction.h"
 #include "markerinfoitem.h"
+#include "crosshairitem.h"
+#include "motioninfoitem.h"
 #include "mapview.h"
 
 
@@ -30,22 +34,8 @@
 #define COORDINATES_OFFSET SCALE_OFFSET
 
 
-template<typename T>
+MapView::MapView(Map *map, POI *poi, QGeoPositionInfoSource *source,
-static void updateZValues(T &items)
+  QWidget *parent) : QGraphicsView(parent)
-{
-	for (int i = 0; i < items.size(); i++) {
-		const QGraphicsItem *ai = items.at(i);
-		for (int j = 0; j < items.size(); j++) {
-			QGraphicsItem *aj = items[j];
-			if (aj->boundingRect().contains(ai->boundingRect()))
-				aj->setZValue(qMin(ai->zValue() - 1, aj->zValue()));
-		}
-	}
-}
-
-
-MapView::MapView(Map *map, POI *poi, QWidget *parent)
-  : QGraphicsView(parent)
 {
 	Q_ASSERT(map != 0);
 	Q_ASSERT(poi != 0);
@@ -63,10 +53,10 @@ MapView::MapView(Map *map, POI *poi, QWidget *parent)
 	_mapScale = new ScaleItem();
 	_mapScale->setZValue(2.0);
 	_scene->addItem(_mapScale);
-	_coordinates = new CoordinatesItem();
+	_cursorCoordinates = new CoordinatesItem();
-	_coordinates->setZValue(2.0);
+	_cursorCoordinates->setZValue(2.0);
-	_coordinates->setVisible(false);
+	_cursorCoordinates->setVisible(false);
-	_scene->addItem(_coordinates);
+	_scene->addItem(_cursorCoordinates);
 
 	_outputProjection = PCS::pcs(3857);
 	_inputProjection = GCS::gcs(4326);
@@ -79,6 +69,25 @@ MapView::MapView(Map *map, POI *poi, QWidget *parent)
 	_poi = poi;
 	connect(_poi, &POI::pointsChanged, this, &MapView::updatePOI);
 
+	_positionSource = source;
+	if (_positionSource)
+		connect(_positionSource, &QGeoPositionInfoSource::positionUpdated, this,
+		  &MapView::updatePosition);
+	_crosshair = new CrosshairItem();
+	_crosshair->setZValue(2.0);
+	_crosshair->setVisible(false);
+	_scene->addItem(_crosshair);
+
+	_positionCoordinates = new CoordinatesItem();
+	_positionCoordinates->setZValue(2.0);
+	_positionCoordinates->setVisible(false);
+	_scene->addItem(_positionCoordinates);
+
+	_motionInfo = new MotionInfoItem();
+	_motionInfo->setZValue(2.0);
+	_motionInfo->setVisible(false);
+	_scene->addItem(_motionInfo);
+
 	_mapOpacity = 1.0;
 	_backgroundColor = Qt::white;
 	_markerColor = Qt::red;
@@ -106,6 +115,10 @@ MapView::MapView(Map *map, POI *poi, QWidget *parent)
 	_waypointColor = Qt::black;
 	_poiSize = 8;
 	_poiColor = Qt::black;
+	_followPosition = false;
+	_showPosition = false;
+	_showPositionCoordinates = false;
+	_showMotionInfo = false;
 
 	_deviceRatio = 1.0;
 	_mapRatio = 1.0;
@@ -125,7 +138,7 @@ void MapView::centerOn(const QPointF &pos)
 	QRectF vr(mapToScene(viewport()->rect()).boundingRect());
 	_res = _map->resolution(vr);
 	_mapScale->setResolution(_res);
-	_coordinates->setCoordinates(Coordinates());
+	_cursorCoordinates->setCoordinates(Coordinates());
 }
 
 PathItem *MapView::addTrack(const Track &track)
@@ -199,6 +212,7 @@ void MapView::addArea(const Area &area)
 	ai->setOpacity(_areaOpacity);
 	ai->setDigitalZoom(_digitalZoom);
 	ai->setVisible(_showAreas);
+	ai->setZValue(-area.boundingRect().area());
 
 	_scene->addItem(ai);
 	_ar |= ai->bounds();
@@ -239,6 +253,7 @@ MapItem *MapView::addMap(MapAction *map)
 	mi->setOpacity(_areaOpacity);
 	mi->setDigitalZoom(_digitalZoom);
 	mi->setVisible(_showAreas);
+	mi->setZValue(-mi->bounds().area());
 
 	_scene->addItem(mi);
 	_ar |= mi->bounds();
@@ -272,9 +287,6 @@ QList<PathItem *> MapView::loadData(const Data &data)
 	else
 		updatePOIVisibility();
 
-	if (!data.areas().isEmpty())
-		updateZValues(_areas);
-
 	centerOn(contentCenter());
 
 	return paths;
@@ -292,8 +304,6 @@ void MapView::loadMaps(const QList<MapAction *> &maps)
 	else
 		updatePOIVisibility();
 
-	updateZValues(_areas);
-
 	centerOn(contentCenter());
 }
 
@@ -309,8 +319,6 @@ void MapView::loadDEMs(const QList<Area> &dems)
 	else
 		updatePOIVisibility();
 
-	updateZValues(_areas);
-
 	centerOn(contentCenter());
 }
 
@@ -369,6 +377,8 @@ void MapView::rescale()
 	  it != _pois.constEnd(); it++)
 		it.value()->setMap(_map);
 
+	_crosshair->setMap(_map);
+
 	updatePOIVisibility();
 }
 
@@ -407,19 +417,21 @@ void MapView::setMap(Map *map)
 	_scene->setSceneRect(_map->bounds());
 
 	for (int i = 0; i < _tracks.size(); i++)
-		_tracks.at(i)->setMap(map);
+		_tracks.at(i)->setMap(_map);
 	for (int i = 0; i < _routes.size(); i++)
-		_routes.at(i)->setMap(map);
+		_routes.at(i)->setMap(_map);
 	for (int i = 0; i < _areas.size(); i++)
-		_areas.at(i)->setMap(map);
+		_areas.at(i)->setMap(_map);
 	for (int i = 0; i < _waypoints.size(); i++)
-		_waypoints.at(i)->setMap(map);
+		_waypoints.at(i)->setMap(_map);
 
 	for (POIHash::const_iterator it = _pois.constBegin();
 	  it != _pois.constEnd(); it++)
 		it.value()->setMap(_map);
 	updatePOIVisibility();
 
+	_crosshair->setMap(_map);
+
 	QPointF nc = QRectF(_map->ll2xy(cr.topLeft()),
 	  _map->ll2xy(cr.bottomRight())).center();
 	centerOn(nc);
@@ -437,6 +449,20 @@ void MapView::setPOI(POI *poi)
 	updatePOI();
 }
 
+void MapView::setPositionSource(QGeoPositionInfoSource *source)
+{
+	if (_positionSource)
+		disconnect(_positionSource, &QGeoPositionInfoSource::positionUpdated,
+		  this, &MapView::updatePosition);
+	if (source)
+		connect(source, &QGeoPositionInfoSource::positionUpdated, this,
+		  &MapView::updatePosition);
+
+	_positionSource = source;
+
+	showPosition(_showPosition);
+}
+
 void MapView::setGraph(int index)
 {
 	for (int i = 0; i < _tracks.size(); i++)
@@ -502,6 +528,9 @@ void MapView::setUnits(Units units)
 		_routes.at(i)->updateTicks();
 
 	_mapScale->setUnits(units);
+	_cursorCoordinates->setUnits(units);
+	_positionCoordinates->setUnits(units);
+	_motionInfo->setUnits(units);
 }
 
 void MapView::setCoordinatesFormat(CoordinatesFormat format)
@@ -514,7 +543,8 @@ void MapView::setCoordinatesFormat(CoordinatesFormat format)
 	for (int i = 0; i < _routes.count(); i++)
 		_routes.at(i)->updateMarkerInfo();
 
-	_coordinates->setFormat(format);
+	_cursorCoordinates->setFormat(format);
+	_positionCoordinates->setFormat(format);
 }
 
 void MapView::setTimeZone(const QTimeZone &zone)
@@ -557,7 +587,10 @@ void MapView::digitalZoom(int zoom)
 		it.value()->setDigitalZoom(_digitalZoom);
 
 	_mapScale->setDigitalZoom(_digitalZoom);
-	_coordinates->setDigitalZoom(_digitalZoom);
+	_cursorCoordinates->setDigitalZoom(_digitalZoom);
+	_positionCoordinates->setDigitalZoom(_digitalZoom);
+	_motionInfo->setDigitalZoom(_digitalZoom);
+	_crosshair->setDigitalZoom(_digitalZoom);
 }
 
 void MapView::zoom(int zoom, const QPoint &pos, bool shift)
@@ -658,7 +691,7 @@ void MapView::mousePressEvent(QMouseEvent *event)
 {
 	if (event->button() == Qt::LeftButton && event->modifiers() & MODIFIER)
 		QApplication::clipboard()->setText(Format::coordinates(
-		  _map->xy2ll(mapToScene(event->pos())), _coordinates->format()));
+		  _map->xy2ll(mapToScene(event->pos())), _cursorCoordinates->format()));
 	else
 		QGraphicsView::mousePressEvent(event);
 }
@@ -756,10 +789,16 @@ void MapView::clear()
 	_waypoints.clear();
 
 	_scene->removeItem(_mapScale);
-	_scene->removeItem(_coordinates);
+	_scene->removeItem(_cursorCoordinates);
+	_scene->removeItem(_positionCoordinates);
+	_scene->removeItem(_crosshair);
+	_scene->removeItem(_motionInfo);
 	_scene->clear();
 	_scene->addItem(_mapScale);
-	_scene->addItem(_coordinates);
+	_scene->addItem(_cursorCoordinates);
+	_scene->addItem(_positionCoordinates);
+	_scene->addItem(_crosshair);
+	_scene->addItem(_motionInfo);
 
 	_palette.reset();
 
@@ -910,10 +949,31 @@ void MapView::showPOIIcons(bool show)
 	updatePOIVisibility();
 }
 
-void MapView::showCoordinates(bool show)
+void MapView::showCursorCoordinates(bool show)
 {
-	_coordinates->setVisible(show);
+	_cursorCoordinates->setVisible(show);
 	setMouseTracking(show);
+	_scene->invalidate();
+}
+
+void MapView::showPositionCoordinates(bool show)
+{
+	_showPositionCoordinates = show;
+
+	if (_crosshair->isVisible())
+		_positionCoordinates->setVisible(show);
+
+	_scene->invalidate();
+}
+
+void MapView::showMotionInfo(bool show)
+{
+	_showMotionInfo = show;
+
+	if (_crosshair->isVisible())
+		_motionInfo->setVisible(show);
+
+	_scene->invalidate();
 }
 
 void MapView::showOverlappedPOIs(bool show)
@@ -1022,6 +1082,10 @@ void MapView::setMapOpacity(int opacity)
 void MapView::setBackgroundColor(const QColor &color)
 {
 	_backgroundColor = color;
+	_cursorCoordinates->setBackgroundColor(color);
+	_positionCoordinates->setBackgroundColor(color);
+	_motionInfo->setBackgroundColor(color);
+
 	reloadMap();
 }
 
@@ -1053,11 +1117,27 @@ void MapView::paintEvent(QPaintEvent *event)
 	if (_mapScale->pos() != scaleScenePos && !_plot)
 		_mapScale->setPos(scaleScenePos);
 
-	if (_coordinates->isVisible()) {
+	if (_cursorCoordinates->isVisible()) {
 		QPointF coordinatesScenePos = mapToScene(rect().bottomLeft()
 		  + QPoint(COORDINATES_OFFSET, -COORDINATES_OFFSET));
-		if (_coordinates->pos() != coordinatesScenePos && !_plot)
+		if (_cursorCoordinates->pos() != coordinatesScenePos && !_plot)
-			_coordinates->setPos(coordinatesScenePos);
+			_cursorCoordinates->setPos(coordinatesScenePos);
+	}
+
+	if (_positionCoordinates->isVisible()) {
+		QPointF coordinatesScenePos = mapToScene(rect().topLeft()
+		  + QPoint(COORDINATES_OFFSET, COORDINATES_OFFSET
+		  + _positionCoordinates->boundingRect().height()));
+		if (_positionCoordinates->pos() != coordinatesScenePos)
+			_positionCoordinates->setPos(coordinatesScenePos);
+	}
+
+	if (_motionInfo->isVisible()) {
+		QPointF coordinatesScenePos = mapToScene(rect().topRight()
+		  + QPoint(-COORDINATES_OFFSET - _motionInfo->boundingRect().width(),
+		  COORDINATES_OFFSET + _motionInfo->boundingRect().height()));
+		if (_motionInfo->pos() != coordinatesScenePos)
+			_motionInfo->setPos(coordinatesScenePos);
 	}
 
 	QGraphicsView::paintEvent(event);
@@ -1078,15 +1158,17 @@ void MapView::scrollContentsBy(int dx, int dy)
 
 void MapView::mouseMoveEvent(QMouseEvent *event)
 {
-	if (_coordinates->isVisible())
+	if (_cursorCoordinates->isVisible()) {
-		_coordinates->setCoordinates(_map->xy2ll(mapToScene(event->pos())));
+		Coordinates c(_map->xy2ll(mapToScene(event->pos())));
+		_cursorCoordinates->setCoordinates(c, DEM::elevation(c));
+	}
 
 	QGraphicsView::mouseMoveEvent(event);
 }
 
 void MapView::leaveEvent(QEvent *event)
 {
-	_coordinates->setCoordinates(Coordinates());
+	_cursorCoordinates->setCoordinates(Coordinates());
 	QGraphicsView::leaveEvent(event);
 }
 
@@ -1157,6 +1239,8 @@ void MapView::setDevicePixelRatio(qreal deviceRatio, qreal mapRatio)
 		it.value()->setMap(_map);
 	updatePOIVisibility();
 
+	_crosshair->setMap(_map);
+
 	QPointF nc = QRectF(_map->ll2xy(cr.topLeft()),
 	  _map->ll2xy(cr.bottomRight())).center();
 	centerOn(nc);
@@ -1206,3 +1290,71 @@ RectC MapView::boundingRect() const
 
 	return rect;
 }
+
+void MapView::showPosition(bool show)
+{
+	_showPosition = show;
+
+	if (!_positionSource) {
+		_crosshair->setVisible(false);
+		_positionCoordinates->setVisible(false);
+		_motionInfo->setVisible(false);
+	} else if (_showPosition) {
+		_crosshair->setVisible(true);
+		if (_showPositionCoordinates)
+			_positionCoordinates->setVisible(true);
+		if (_showMotionInfo)
+			_motionInfo->setVisible(true);
+		_positionSource->startUpdates();
+	} else {
+		_positionSource->stopUpdates();
+		_crosshair->setVisible(false);
+		_positionCoordinates->setVisible(false);
+		_motionInfo->setVisible(false);
+	}
+}
+
+void MapView::followPosition(bool follow)
+{
+	_followPosition = follow;
+
+	if (follow && _crosshair->isVisible())
+		centerOn(_map->ll2xy(_crosshair->coordinates()));
+}
+
+void MapView::updatePosition(const QGeoPositionInfo &pos)
+{
+	QGeoCoordinate gc(pos.coordinate());
+	if (!gc.isValid())
+		return;
+
+	Coordinates c(gc.longitude(), gc.latitude());
+	_crosshair->setCoordinates(c);
+	_crosshair->setMap(_map);
+	_positionCoordinates->setCoordinates(c, gc.altitude());
+	_motionInfo->setInfo(pos.attribute(QGeoPositionInfo::Direction),
+	  pos.attribute(QGeoPositionInfo::GroundSpeed),
+	  pos.attribute(QGeoPositionInfo::VerticalSpeed));
+
+	if (_followPosition)
+		centerOn(_map->ll2xy(c));
+}
+
+void MapView::setCrosshairColor(const QColor &color)
+{
+	_crosshair->setColor(color);
+}
+
+void MapView::setInfoColor(const QColor &color)
+{
+	_cursorCoordinates->setColor(color);
+	_positionCoordinates->setColor(color);
+	_motionInfo->setColor(color);
+}
+
+void MapView::drawInfoBackground(bool draw)
+{
+	_cursorCoordinates->drawBackground(draw);
+	_positionCoordinates->drawBackground(draw);
+	_motionInfo->drawBackground(draw);
+}

src/GUI/mapview.h

@@ -17,6 +17,8 @@
 #include "palette.h"
 
 
+class QGeoPositionInfoSource;
+class QGeoPositionInfo;
 class Data;
 class POI;
 class Map;
@@ -35,6 +37,8 @@ class Area;
 class GraphicsScene;
 class QTimeZone;
 class MapAction;
+class CrosshairItem;
+class MotionInfoItem;
 
 class MapView : public QGraphicsView
 {
@@ -48,7 +52,8 @@ public:
 	};
 	Q_DECLARE_FLAGS(PlotFlags, Flag)
 
-	MapView(Map *map, POI *poi, QWidget *parent = 0);
+	MapView(Map *map, POI *poi, QGeoPositionInfoSource *source,
+	  QWidget *parent = 0);
 
 	QList<PathItem *> loadData(const Data &data);
 	void loadMaps(const QList<MapAction*> &maps);
@@ -57,6 +62,7 @@ public:
 	void setPalette(const Palette &palette);
 	void setPOI(POI *poi);
 	void setMap(Map *map);
+	void setPositionSource(QGeoPositionInfoSource *source);
 	void setGraph(int index);
 
 	void plot(QPainter *painter, const QRectF &target, qreal scale,
@@ -66,6 +72,9 @@ public:
 
 	void setUnits(Units units);
 	void setMarkerColor(const QColor &color);
+	void setCrosshairColor(const QColor &color);
+	void setInfoColor(const QColor &color);
+	void drawInfoBackground(bool draw);
 	void setTrackWidth(int width);
 	void setRouteWidth(int width);
 	void setAreaWidth(int width);
@@ -94,9 +103,11 @@ public:
 public slots:
 	void showMap(bool show);
 	void showPOI(bool show);
+	void showPosition(bool show);
 	void showPOILabels(bool show);
 	void showPOIIcons(bool show);
-	void showCoordinates(bool show);
+	void showCursorCoordinates(bool show);
+	void showPositionCoordinates(bool show);
 	void showTicks(bool show);
 	void showMarkers(bool show);
 	void showMarkerInfo(MarkerInfoItem::Type type);
@@ -109,10 +120,13 @@ public slots:
 	void showWaypoints(bool show);
 	void showRouteWaypoints(bool show);
 	void setMarkerPosition(qreal pos);
+	void followPosition(bool follow);
+	void showMotionInfo(bool show);
 
 private slots:
 	void updatePOI();
 	void reloadMap();
+	void updatePosition(const QGeoPositionInfo &pos);
 
 private:
 	typedef QHash<SearchPointer<Waypoint>, WaypointItem*> POIHash;
@@ -148,7 +162,9 @@ private:
 
 	GraphicsScene *_scene;
 	ScaleItem *_mapScale;
-	CoordinatesItem *_coordinates;
+	CoordinatesItem *_cursorCoordinates, *_positionCoordinates;
+	CrosshairItem *_crosshair;
+	MotionInfoItem *_motionInfo;
 	QList<TrackItem*> _tracks;
 	QList<RouteItem*> _routes;
 	QList<WaypointItem*> _waypoints;
@@ -160,6 +176,7 @@ private:
 
 	Map *_map;
 	POI *_poi;
+	QGeoPositionInfoSource *_positionSource;
 
 	Palette _palette;
 	qreal _mapOpacity;
@@ -167,9 +184,10 @@ private:
 
 	bool _showMap, _showTracks, _showRoutes, _showAreas, _showWaypoints,
 	  _showWaypointLabels, _showPOI, _showPOILabels, _showRouteWaypoints,
-	  _showMarkers, _showPathTicks, _showPOIIcons, _showWaypointIcons;
+	  _showMarkers, _showPathTicks, _showPOIIcons, _showWaypointIcons,
+	  _showPosition, _showPositionCoordinates, _showMotionInfo;
 	MarkerInfoItem::Type _markerInfoType;
-	bool _overlapPOIs;
+	bool _overlapPOIs, _followPosition;
 	int _trackWidth, _routeWidth, _areaWidth;
 	Qt::PenStyle _trackStyle, _routeStyle, _areaStyle;
 	int _waypointSize, _poiSize;

src/GUI/motioninfoitem.cpp

@@ -0,0 +1,160 @@
+#include <cmath>
+#include <QFont>
+#include <QPainter>
+#include <QLocale>
+#include <QApplication>
+#include "font.h"
+#include "motioninfoitem.h"
+
+
+#define DEGREE_UNIT QString::fromUtf8("\xC2\xB0")
+
+MotionInfoItem::MotionInfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
+{
+	_units = Metric;
+	_bearing = NAN;
+	_speed = NAN;
+	_verticalSpeed = NAN;
+	_color = Qt::black;
+	_bgColor = Qt::white;
+	_drawBackground = false;
+	_font.setPixelSize(FONT_SIZE);
+	_font.setFamily(FONT_FAMILY);
+	_digitalZoom = 0;
+
+	setAcceptHoverEvents(true);
+
+	updateBoundingRect();
+}
+
+void MotionInfoItem::paint(QPainter *painter,
+  const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+
+	if (std::isnan(_bearing) && std::isnan(_speed) && std::isnan(_verticalSpeed))
+		return;
+
+	if (_drawBackground) {
+		painter->setPen(Qt::NoPen);
+		QColor bc(_bgColor);
+		bc.setAlpha(196);
+		painter->setBrush(QBrush(bc));
+		painter->drawRect(_boundingRect);
+		painter->setBrush(Qt::NoBrush);
+	}
+
+	QFontMetrics fm(_font);
+	painter->setFont(_font);
+	painter->setPen(QPen(_color));
+	painter->drawText(0, -fm.descent(), text());
+
+	//painter->setPen(Qt::red);
+	//painter->drawRect(boundingRect());
+}
+
+void MotionInfoItem::setInfo(qreal bearing, qreal speed, qreal verticalSpeed)
+{
+	prepareGeometryChange();
+
+	_bearing = bearing;
+	_speed = speed;
+	_verticalSpeed = verticalSpeed;
+
+	updateBoundingRect();
+	update();
+}
+
+void MotionInfoItem::setUnits(Units units)
+{
+	prepareGeometryChange();
+
+	_units = units;
+	updateBoundingRect();
+}
+
+void MotionInfoItem::setDigitalZoom(qreal zoom)
+{
+	_digitalZoom = zoom;
+	setScale(pow(2, -_digitalZoom));
+}
+
+QString MotionInfoItem::speed(const QLocale &l) const
+{
+	if (_units == Nautical)
+		return l.toString(MS2KN * _speed, 'f', 1) + UNIT_SPACE
+		  + qApp->translate("MotionInfoItem", "kn");
+	else if (_units == Imperial)
+		return l.toString(MS2MIH * _speed, 'f', 1) + UNIT_SPACE
+		  + qApp->translate("MotionInfoItem", "mi/h");
+	else
+		return l.toString(MS2KMH * _speed, 'f', 1) + UNIT_SPACE
+		  + qApp->translate("MotionInfoItem", "km/h");
+}
+
+QString MotionInfoItem::verticalSpeed(const QLocale &l) const
+{
+	if (_units == Nautical || _units == Imperial)
+		return l.toString(MS2FTMIN * _verticalSpeed, 'f', 0) + UNIT_SPACE
+		  + qApp->translate("MotionInfoItem", "ft/min");
+	else
+		return l.toString(MS2MMIN * _verticalSpeed, 'f', 0) + UNIT_SPACE
+		  + qApp->translate("MotionInfoItem", "m/min");
+}
+
+static QString bearing(qreal val, const QLocale &l)
+{
+	return l.toString(val, 'f', 0) + DEGREE_UNIT;
+}
+
+QString MotionInfoItem::text() const
+{
+	QLocale l(QLocale::system());
+	QString str;
+
+	if (!std::isnan(_bearing))
+		str += bearing(_bearing, l);
+	if (!std::isnan(_speed)) {
+		if (!str.isEmpty())
+			str += ", ";
+		str += speed(l);
+	} if (!std::isnan(_verticalSpeed)) {
+		if (!str.isEmpty())
+			str += ", ";
+		str += verticalSpeed(l);
+	}
+
+	return str;
+}
+
+void MotionInfoItem::updateBoundingRect()
+{
+	QFontMetrics fm(_font);
+
+	QRectF br(fm.tightBoundingRect(text()));
+	QRectF r1(br);
+	QRectF r2(br);
+	r1.moveTop(-fm.ascent());
+	r2.moveBottom(-fm.descent());
+
+	_boundingRect = r1 | r2;
+}
+
+void MotionInfoItem::setColor(const QColor &color)
+{
+	_color = color;
+	update();
+}
+
+void MotionInfoItem::setBackgroundColor(const QColor &color)
+{
+	_bgColor = color;
+	update();
+}
+
+void MotionInfoItem::drawBackground(bool draw)
+{
+	_drawBackground = draw;
+	update();
+}

src/GUI/motioninfoitem.h

@@ -0,0 +1,38 @@
+#ifndef MOTIONINFOITEM_H
+#define MOTIONINFOITEM_H
+
+#include <QGraphicsItem>
+#include "units.h"
+
+class MotionInfoItem : public QGraphicsItem
+{
+public:
+	MotionInfoItem(QGraphicsItem *parent = 0);
+
+	QRectF boundingRect() const {return _boundingRect;}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	void setInfo(qreal bearing, qreal speed, qreal verticalSpeed);
+	void setUnits(Units units);
+	void setDigitalZoom(qreal zoom);
+	void setColor(const QColor &color);
+	void setBackgroundColor(const QColor &color);
+	void drawBackground(bool draw);
+
+private:
+	void updateBoundingRect();
+	QString speed(const QLocale &l) const;
+	QString verticalSpeed(const QLocale &l) const;
+	QString text() const;
+
+	qreal _bearing, _speed, _verticalSpeed;
+	Units _units;
+	QRectF _boundingRect;
+	QFont _font;
+	qreal _digitalZoom;
+	QColor _color, _bgColor;
+	bool _drawBackground;
+};
+
+#endif // MOTIONINFOITEM_H

src/GUI/optionsdialog.cpp

@@ -13,6 +13,7 @@
 #include <QLabel>
 #include <QSysInfo>
 #include <QButtonGroup>
+#include <QGeoPositionInfoSource>
 #include "icons.h"
 #include "infolabel.h"
 #include "colorbox.h"
@@ -22,6 +23,7 @@
 #include "projectioncombobox.h"
 #include "dirselectwidget.h"
 #include "authenticationwidget.h"
+#include "pluginparameters.h"
 #include "optionsdialog.h"
 
 
@@ -39,7 +41,6 @@ static QFrame *line()
 }
 #endif // Q_OS_MAC
 
-
 void OptionsDialog::automaticPauseDetectionSet(bool set)
 {
 	_pauseInterval->setEnabled(!set);
@@ -275,10 +276,20 @@ QWidget *OptionsDialog::createAppearancePage()
 	_backgroundColor = new ColorBox();
 	_backgroundColor->setColor(_options.backgroundColor);
 	_backgroundColor->enableAlphaChannel(false);
+	_crosshairColor = new ColorBox();
+	_crosshairColor->setColor(_options.crosshairColor);
+	_infoColor = new ColorBox();
+	_infoColor->setColor(_options.infoColor);
+	_infoBackground = new QCheckBox(tr("Info background"));
+	_infoBackground->setChecked(_options.infoBackground);
 
 	QFormLayout *mapLayout = new QFormLayout();
 	mapLayout->addRow(tr("Background color:"), _backgroundColor);
 	mapLayout->addRow(tr("Map opacity:"), _mapOpacity);
+	mapLayout->addRow(tr("Crosshair color:"), _crosshairColor);
+	mapLayout->addRow(tr("Info color:"), _infoColor);
+	mapLayout->addWidget(_infoBackground);
+
 	QWidget *mapTab = new QWidget();
 	QVBoxLayout *mapTabLayout = new QVBoxLayout();
 	mapTabLayout->addLayout(mapLayout);
@@ -593,6 +604,39 @@ QWidget *OptionsDialog::createDEMPage()
 	return demPage;
 }
 
+QWidget *OptionsDialog::createPositionPage()
+{
+	QStringList plugins(QGeoPositionInfoSource::availableSources());
+
+	_positionPlugin = new QComboBox();
+	_positionPlugin->addItems(plugins);
+	_positionPlugin->setCurrentIndex(_positionPlugin->findText(_options.plugin));
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	_pluginParameters = new PluginParameters(_positionPlugin->currentText(),
+	  _options.pluginParams);
+	connect(_positionPlugin, &QComboBox::currentTextChanged, _pluginParameters,
+	  &PluginParameters::setPlugin);
+#endif // QT 5.14
+
+	QFormLayout *pluginLayout = new QFormLayout();
+	pluginLayout->addRow(tr("Plugin:"), _positionPlugin);
+
+	QVBoxLayout *sourceLayout = new QVBoxLayout();
+	sourceLayout->addLayout(pluginLayout);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	sourceLayout->addWidget(_pluginParameters);
+#endif // QT 5.14
+	sourceLayout->addStretch();
+
+	QWidget *sourceTab = new QWidget();
+	sourceTab->setLayout(sourceLayout);
+
+	QTabWidget *positionPage = new QTabWidget();
+	positionPage->addTab(sourceTab, tr("Source"));
+
+	return positionPage;
+}
+
 QWidget *OptionsDialog::createExportPage()
 {
 	_wysiwyg = new QRadioButton(tr("WYSIWYG"));
@@ -741,6 +785,7 @@ OptionsDialog::OptionsDialog(Options &options, Units units, QWidget *parent)
 	pages->addWidget(createDataPage());
 	pages->addWidget(createPOIPage());
 	pages->addWidget(createDEMPage());
+	pages->addWidget(createPositionPage());
 	pages->addWidget(createExportPage());
 	pages->addWidget(createSystemPage());
 
@@ -752,6 +797,7 @@ OptionsDialog::OptionsDialog(Options &options, Units units, QWidget *parent)
 	new QListWidgetItem(QIcon(DATA_ICON), tr("Data"), menu);
 	new QListWidgetItem(QIcon(POI_ICON), tr("POI"), menu);
 	new QListWidgetItem(QIcon(DEM_ICON), tr("DEM"), menu);
+	new QListWidgetItem(QIcon(POSITION_ICON), tr("Position"), menu);
 	new QListWidgetItem(QIcon(PRINT_EXPORT_ICON), tr("Print & Export"),
 	  menu);
 	new QListWidgetItem(QIcon(SYSTEM_ICON), tr("System"), menu);
@@ -796,6 +842,9 @@ void OptionsDialog::accept()
 	_options.palette.setShift(_colorOffset->value() / 100.0);
 	_options.mapOpacity = _mapOpacity->value();
 	_options.backgroundColor = _backgroundColor->color();
+	_options.crosshairColor = _crosshairColor->color();
+	_options.infoColor = _infoColor->color();
+	_options.infoBackground = _infoBackground->isChecked();
 	_options.trackWidth = _trackWidth->value();
 	_options.trackStyle = (Qt::PenStyle) _trackStyle->itemData(
 	  _trackStyle->currentIndex()).toInt();
@@ -856,6 +905,11 @@ void OptionsDialog::accept()
 	_options.demUsername = _demAuth->username();
 	_options.demPassword = _demAuth->password();
 
+	_options.plugin = _positionPlugin->currentText();
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	_options.pluginParams = _pluginParameters->parameters();
+#endif // QT 5.14
+
 	_options.useOpenGL = _useOpenGL->isChecked();
 	_options.enableHTTP2 = _enableHTTP2->isChecked();
 	_options.pixmapCache = _pixmapCache->value();

src/GUI/optionsdialog.h

@@ -1,6 +1,7 @@
 #ifndef OPTIONSDIALOG_H
 #define OPTIONSDIALOG_H
 
+#include <QtGlobal>
 #include <QDialog>
 #include "palette.h"
 #include "units.h"
@@ -19,6 +20,7 @@ class PercentSlider;
 class ProjectionComboBox;
 class DirSelectWidget;
 class AuthenticationWidget;
+class PluginParameters;
 
 struct Options {
 	// Appearance
@@ -40,6 +42,9 @@ struct Options {
 	bool graphAntiAliasing;
 	int mapOpacity;
 	QColor backgroundColor;
+	QColor crosshairColor;
+	QColor infoColor;
+	bool infoBackground;
 	// Map
 	int outputProjection;
 	int inputProjection;
@@ -67,6 +72,9 @@ struct Options {
 	QString demUsername;
 	QString demPassword;
 	bool demAuthorization;
+	// Position
+	QString plugin;
+	QMap<QString, QVariantMap> pluginParams;
 	// System
 	bool useOpenGL;
 	bool enableHTTP2;
@@ -107,6 +115,7 @@ private:
 	QWidget *createSystemPage();
 	QWidget *createExportPage();
 	QWidget *createDEMPage();
+	QWidget *createPositionPage();
 
 	Options &_options;
 
@@ -116,6 +125,9 @@ private:
 	PercentSlider *_colorOffset;
 	PercentSlider *_mapOpacity;
 	ColorBox *_backgroundColor;
+	ColorBox *_crosshairColor;
+	ColorBox *_infoColor;
+	QCheckBox *_infoBackground;
 	QSpinBox *_trackWidth;
 	StyleComboBox *_trackStyle;
 	QSpinBox *_routeWidth;
@@ -163,6 +175,11 @@ private:
 	// DEM
 	QLineEdit *_demURL;
 	AuthenticationWidget *_demAuth;
+	// Position
+	QComboBox *_positionPlugin;
+#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
+	PluginParameters *_pluginParameters;
+#endif // QT 5.14
 	// System
 	QSpinBox *_pixmapCache;
 	QSpinBox *_connectionTimeout;

src/GUI/pluginparameters.cpp

@@ -0,0 +1,76 @@
+#include <QFormLayout>
+#include <QLineEdit>
+#include "pluginparameters.h"
+
+static const QMap<QString, QStringList> pluginParams = {
+	{"nmea", {"nmea.source"}},
+	{"serialnmea", {"serialnmea.serial_port"}},
+	{"geoclue2", {"desktopId"}}
+};
+
+static void deleteLayout(QLayout *layout)
+{
+	if (!layout)
+		return;
+
+	while (layout->count() > 0) {
+		QLayoutItem *child = layout->takeAt(0);
+		deleteLayout(child->layout());
+		delete child->widget();
+		delete child;
+	}
+
+	delete layout;
+}
+
+PluginParameters::PluginParameters(const QString &plugin,
+  const QMap<QString, QVariantMap> &params, QWidget *parent)
+  : QWidget(parent), _params(params), _plugin(plugin)
+{
+	setPlugin(plugin);
+}
+
+void PluginParameters::setPlugin(const QString &plugin)
+{
+	saveParameters();
+
+	QStringList params = pluginParams.value(plugin);
+
+	QFormLayout *l = new QFormLayout();
+	for (int i = 0; i < params.size(); i++) {
+		QLineEdit *le = new QLineEdit();
+		le->setObjectName(params.at(i));
+		le->setText(_params[plugin].value(params.at(i)).toString());
+		l->addRow(params.at(i) + ":", le);
+	}
+
+	deleteLayout(layout());
+	setLayout(l);
+
+	_plugin = plugin;
+}
+
+const QMap<QString, QVariantMap> &PluginParameters::parameters()
+{
+	saveParameters();
+	return _params;
+}
+
+void PluginParameters::saveParameters()
+{
+	QVariantMap &map(_params[_plugin]);
+	QFormLayout *l = qobject_cast<QFormLayout*>(layout());
+	if (!l)
+		return;
+
+	for (int i = 0; i < l->rowCount(); i++) {
+		QLayoutItem *li = l->itemAt(i, QFormLayout::FieldRole);
+		QLineEdit *le = qobject_cast<QLineEdit*>(li->widget());
+		if (le) {
+			if (le->text().isEmpty())
+				map.remove(le->objectName());
+			else
+				map.insert(le->objectName(), le->text());
+		}
+	}
+}

src/GUI/pluginparameters.h

@@ -0,0 +1,27 @@
+#ifndef PLUGINPARAMETERS_H
+#define PLUGINPARAMETERS_H
+
+#include <QWidget>
+#include <QVariantMap>
+
+class PluginParameters : public QWidget
+{
+	Q_OBJECT
+
+public:
+	PluginParameters(const QString &plugin,
+	  const QMap<QString, QVariantMap> &params, QWidget *parent = 0);
+
+	const QMap<QString, QVariantMap> &parameters();
+
+public slots:
+	void setPlugin(const QString &plugin);
+
+private:
+	void saveParameters();
+
+	QMap<QString, QVariantMap> _params;
+	QString _plugin;
+};
+
+#endif // PLUGINPARAMETERS_H

src/GUI/settings.h

@@ -3,6 +3,9 @@
 
 #define IMPERIAL_UNITS() \
 	(QLocale::system().measurementSystem() == QLocale::ImperialSystem)
+#define POSITION_PLUGIN() \
+	(QGeoPositionInfoSource::availableSources().isEmpty() \
+	  ? "" : QGeoPositionInfoSource::availableSources().first())
 
 #define WINDOW_SETTINGS_GROUP             "Window"
 #define WINDOW_GEOMETRY_SETTING           "geometry"
@@ -34,13 +37,23 @@
 #define CURRENT_MAP_SETTING               "map"
 #define SHOW_MAP_SETTING                  "show"
 #define SHOW_MAP_DEFAULT                  true
-#define SHOW_COORDINATES_SETTING          "coordinates"
+#define SHOW_CURSOR_COORDINATES_SETTING   "coordinates"
-#define SHOW_COORDINATES_DEFAULT          false
+#define SHOW_CURSOR_COORDINATES_DEFAULT   false
 
 #define POI_SETTINGS_GROUP                "POI"
 #define OVERLAP_POI_SETTING               "overlap"
 #define OVERLAP_POI_DEFAULT               false
 
+#define POSITION_SETTINGS_GROUP           "Position"
+#define SHOW_POSITION_SETTING             "show"
+#define SHOW_POSITION_DEFAULT             false
+#define FOLLOW_POSITION_SETTING           "follow"
+#define FOLLOW_POSITION_DEFAULT           true
+#define SHOW_POSITION_COORDINATES_SETTING "coordinates"
+#define SHOW_POSITION_COORDINATES_DEFAULT true
+#define SHOW_MOTION_INFO_SETTING          "motionInfo"
+#define SHOW_MOTION_INFO_DEFAULT          true
+
 #define SHOW_POI_ICONS_SETTING            "icons"
 #define SHOW_POI_ICONS_DEFAULT            true
 #define SHOW_POI_LABELS_SETTING           "labels"
@@ -119,6 +132,12 @@
 #define MAP_OPACITY_DEFAULT               100
 #define BACKGROUND_COLOR_SETTING          "backgroundColor"
 #define BACKGROUND_COLOR_DEFAULT          QColor(Qt::white)
+#define CROSSHAIR_COLOR_SETTING           "crosshairColor"
+#define CROSSHAIR_COLOR_DEFAULT           QColor(Qt::red)
+#define INFO_COLOR_SETTING                "infoColor"
+#define INFO_COLOR_DEFAULT                QColor(Qt::black)
+#define INFO_BACKGROUND_SETTING           "infoBackground"
+#define INFO_BACKGROUND_DEFAULT           false
 #define TRACK_WIDTH_SETTING               "trackWidth"
 #define TRACK_WIDTH_DEFAULT               3
 #define ROUTE_WIDTH_SETTING               "routeWidth"
@@ -179,13 +198,18 @@
 #define POI_RADIUS_SETTING                "poiRadius"
 #define POI_RADIUS_DEFAULT                (int)(IMPERIAL_UNITS() ? MIINM : KMINM)
 #define DEM_URL_SETTING                   "demURL"
-#define DEM_URL_DEFAULT                   ""
+#define DEM_URL_DEFAULT                   "http://dem.gpxsee.org/$lat/$lat$lon.hgt.zip"
 #define DEM_AUTH_SETTING                  "demAuthentication"
 #define DEM_AUTH_DEFAULT                  false
 #define DEM_USERNAME_SETTING              "demUsername"
 #define DEM_USERNAME_DEFAULT              ""
 #define DEM_PASSWORD_SETTING              "demPassword"
 #define DEM_PASSWORD_DEFAULT              ""
+#define POSITION_PLUGIN_SETTING           "positionPlugin"
+#define POSITION_PLUGIN_DEFAULT           POSITION_PLUGIN()
+#define POSITION_PLUGIN_PARAMS_PREFIX     "pluginParameters"
+#define POSITION_PLUGIN_PARAMS_PLUGIN     "plugin"
+#define POSITION_PLUGIN_PARAMS_PARAM      "parameters"
 #define USE_OPENGL_SETTING                "useOpenGL"
 #define USE_OPENGL_DEFAULT                false
 #define ENABLE_HTTP2_SETTING              "enableHTTP2"

src/GUI/units.h

@@ -7,26 +7,28 @@ enum Units {
 	Nautical
 };
 
-#define M2KM    0.001000000000  // m -> km
+#define M2KM     0.001000000000  // m -> km
-#define M2MI    0.000621371192  // m -> mi
+#define M2MI     0.000621371192  // m -> mi
-#define M2NMI   0.000539956803  // m -> nmi
+#define M2NMI    0.000539956803  // m -> nmi
-#define M2FT    3.280839900000  // m -> ft
+#define M2FT     3.280839900000  // m -> ft
-#define MS2KMH  3.600000000000  // m/s -> km/h
+#define MS2KMH   3.600000000000  // m/s -> km/h
-#define MS2MIH  2.236936290000  // m/s -> mi/h
+#define MS2MIH   2.236936290000  // m/s -> mi/h
-#define MS2KN   1.943844490000  // m/s -> kn
+#define MS2KN    1.943844490000  // m/s -> kn
-#define FT2MI   0.000189393939  // ft -> mi
+#define MS2FTMIN 196.8503937008  // m/s -> ft/min
-#define MM2IN   0.039370100000  // mm -> in
+#define MS2MMIN  60.00000000000  // m/s -> m/min
-#define MM2CM   0.100000000000  // mm -> cm
+#define FT2MI    0.000189393939  // ft -> mi
-#define H2S     0.000277777778  // h -> s
+#define MM2IN    0.039370100000  // mm -> in
-#define MIN2S   0.016666666667  // min -> s
+#define MM2CM    0.100000000000  // mm -> cm
+#define H2S      0.000277777778  // h -> s
+#define MIN2S    0.016666666667  // min -> s
 
-#define KMINM   1000.0      // 1 km in m
+#define KMINM    1000.0      // 1 km in m
-#define MIINFT  5280.0      // 1 mi in ft
+#define MIINFT   5280.0      // 1 mi in ft
-#define NMIINFT 6076.11549  // 1 nm in ft
+#define NMIINFT  6076.11549  // 1 nm in ft
-#define MIINM   1609.344    // 1 mi in m
+#define MIINM    1609.344    // 1 mi in m
-#define NMIINM  1852.0      // 1 nmi in m
+#define NMIINM   1852.0      // 1 nmi in m
-#define MININS  60.0        // 1 min in s
+#define MININS   60.0        // 1 min in s
-#define HINS    3600.0      // 1 hins
+#define HINS     3600.0      // 1 hins
 
 #define C2FS    1.8  // Celsius to Farenheit - scale
 #define C2FO    32.0 // Celsius to Farenheit - offset

src/common/rectc.h

@@ -30,6 +30,7 @@ public:
 		return (left() > right()) ? 360.0 - res : res;
 	}
 	double height() const {return (top() - bottom());}
+	double area() const {return qAbs(width()) * qAbs(height());}
 
 	double top() const {return _tl.lat();}
 	double bottom() const {return _br.lat();}

src/data/data.cpp

@@ -1,7 +1,6 @@
 #include <QApplication>
 #include <QFile>
 #include <QFileInfo>
-#include <QLineF>
 #include "gpxparser.h"
 #include "tcxparser.h"
 #include "csvparser.h"
@@ -20,6 +19,7 @@
 #include "ov2parser.h"
 #include "itnparser.h"
 #include "onmoveparsers.h"
+#include "twonavparser.h"
 #include "data.h"
 
 
@@ -44,10 +44,11 @@ static OV2Parser ov2;
 static ITNParser itn;
 static OMDParser omd;
 static GHPParser ghp;
+static TwoNavParser twonav;
 
-static QMap<QString, Parser*> parsers()
+static QMultiMap<QString, Parser*> parsers()
 {
-	QMap<QString, Parser*> map;
+	QMultiMap<QString, Parser*> map;
 
 	map.insert("gpx", &gpx);
 	map.insert("tcx", &tcx);
@@ -72,11 +73,14 @@ static QMap<QString, Parser*> parsers()
 	map.insert("itn", &itn);
 	map.insert("omd", &omd);
 	map.insert("ghp", &ghp);
+	map.insert("trk", &twonav);
+	map.insert("rte", &twonav);
+	map.insert("wpt", &twonav);
 
 	return map;
 }
 
-QMap<QString, Parser*> Data::_parsers = parsers();
+QMultiMap<QString, Parser*> Data::_parsers = parsers();
 
 void Data::processData(QList<TrackData> &trackData, QList<RouteData> &routeData)
 {
@@ -101,16 +105,21 @@ Data::Data(const QString &fileName, bool tryUnknown)
 		return;
 	}
 
-	QMap<QString, Parser*>::iterator it;
+	QMultiMap<QString, Parser*>::iterator it;
-	if ((it = _parsers.find(fi.suffix().toLower())) != _parsers.end()) {
+	QString suffix(fi.suffix().toLower());
-		if (it.value()->parse(&file, trackData, routeData, _polygons,
+	if ((it = _parsers.find(suffix)) != _parsers.end()) {
-		  _waypoints)) {
+		while (it != _parsers.end() && it.key() == suffix) {
-			processData(trackData, routeData);
+			if (it.value()->parse(&file, trackData, routeData, _polygons,
-			_valid = true;
+			  _waypoints)) {
-			return;
+				processData(trackData, routeData);
-		} else {
+				_valid = true;
-			_errorLine = it.value()->errorLine();
+				return;
-			_errorString = it.value()->errorString();
+			} else {
+				_errorLine = it.value()->errorLine();
+				_errorString = it.value()->errorString();
+			}
+			file.reset();
+			++it;
 		}
 	} else if (tryUnknown) {
 		for (it = _parsers.begin(); it != _parsers.end(); it++) {
@@ -155,16 +164,21 @@ QString Data::formats()
 	  + qApp->translate("Data", "SLF files") + " (*.slf);;"
 	  + qApp->translate("Data", "SML files") + " (*.sml);;"
 	  + qApp->translate("Data", "TCX files") + " (*.tcx);;"
+	  + qApp->translate("Data", "TwoNav files") + " (*.rte *.trk *.wpt);;"
 	  + qApp->translate("Data", "All files") + " (*)";
 }
 
 QStringList Data::filter()
 {
 	QStringList filter;
+	QString last;
 
-	for (QMap<QString, Parser*>::iterator it = _parsers.begin();
+	for (QMultiMap<QString, Parser*>::iterator it = _parsers.begin();
-	  it != _parsers.end(); it++)
+	  it != _parsers.end(); it++) {
-		filter << "*." + it.key();
+		if (it.key() != last)
+			filter << "*." + it.key();
+		last = it.key();
+	}
 
 	return filter;
 }

src/data/data.h

@@ -2,7 +2,7 @@
 #define DATA_H
 
 #include <QList>
-#include <QMap>
+#include <QMultiMap>
 #include <QString>
 #include <QStringList>
 #include "waypoint.h"
@@ -39,7 +39,7 @@ private:
 	QList<Area> _polygons;
 	QVector<Waypoint> _waypoints;
 
-	static QMap<QString, Parser*> _parsers;
+	static QMultiMap<QString, Parser*> _parsers;
 };
 
 #endif // DATA_H

src/data/fitparser.cpp

@@ -223,6 +223,22 @@ bool FITParser::readField(CTX &ctx, Field *field, QVariant &val, bool &valid)
 		case 0: // enum
 			VAL(quint8, 0xffU);
 			break;
+		case 3:
+		case 0x83: // sint16
+			VAL(qint16, 0x7fffU);
+			break;
+		case 4:
+		case 0x84: // uint16
+			VAL(quint16, 0xffffU);
+			break;
+		case 5:
+		case 0x85: // sint32
+			VAL(qint32, 0x7fffffffU);
+			break;
+		case 6:
+		case 0x86: // uint32
+			VAL(quint32, 0xffffffffU);
+			break;
 		case 7: // UTF8 nul terminated string
 			{QByteArray ba(ctx.file->read(field->size));
 			ctx.len -= field->size;
@@ -230,18 +246,6 @@ bool FITParser::readField(CTX &ctx, Field *field, QVariant &val, bool &valid)
 			val = ret ? ba : QString();
 			valid = !ba.isEmpty();}
 			break;
-		case 0x83: // sint16
-			VAL(qint16, 0x7fffU);
-			break;
-		case 0x84: // uint16
-			VAL(quint16, 0xffffU);
-			break;
-		case 0x85: // sint32
-			VAL(qint32, 0x7fffffffU);
-			break;
-		case 0x86: // uint32
-			VAL(quint32, 0xffffffffU);
-			break;
 		default:
 			ret = skipValue(ctx, field->size);
 			valid = false;

src/data/gpiparser.cpp

@@ -429,27 +429,33 @@ static quint32 readImageInfo(DataStream &stream, Waypoint &waypoint,
 	return rs + rh.size;
 }
 
-static int speed(quint8 flags)
+static int speed(quint16 flags)
 {
-	switch (flags >> 4) {
+	return (((flags >> 3) & 0x0F) * 10) + (((flags >> 2) & 1) * 5);
-		case 0x8:
+}
-			return 40;
+
-		case 0x9:
+static QString units(quint16 flags)
-			return 30;
+{
-		case 0xA:
+	return (flags & (1<<8)) ? "km/h" : "mi/h";
-			return 50;
+}
-		case 0xB:
+
-			return 70;
+static bool portable(quint16 flags)
-		case 0xC:
+{
-			return 80;
+	return (flags & 1);
-		case 0xD:
+}
-			return 90;
+
-		case 0xE:
+static bool redLight(quint16 flags)
-			return 100;
+{
-		case 0xF:
+	return (flags & (1<<9));
-			return 120;
+}
-		default:
+
-			return 0;
+static QString cameraDesc(quint16 flags)
+{
+	if (redLight(flags))
+		return "Red light camera";
+	else {
+		QString desc(QString::number(speed(flags)) + "&nbsp;" + units(flags));
+		return portable(flags) ? "<i>" + desc + "<i>" : desc;
 	}
 }
 
@@ -457,7 +463,8 @@ static quint32 readCamera(DataStream &stream, QVector<Waypoint> &waypoints,
   QList<Area> &polygons)
 {
 	RecordHeader rh;
-	quint8 flags, type, s7, rs;
+	quint8 s7, rs;
+	quint16 flags;
 	qint32 top, right, bottom, left, lat, lon;
 	quint32 ds = 15;
 
@@ -467,7 +474,7 @@ static quint32 readCamera(DataStream &stream, QVector<Waypoint> &waypoints,
 	right = stream.readInt24();
 	bottom = stream.readInt24();
 	left = stream.readInt24();
-	stream >> flags >> type >> s7;
+	stream >> flags >> s7;
 
 	if (s7) {
 		quint32 skip = s7 + 2 + s7/4;
@@ -486,26 +493,11 @@ static quint32 readCamera(DataStream &stream, QVector<Waypoint> &waypoints,
 		ds += skip + 16;
 	}
 
-	waypoints.append(Coordinates(toWGS24(lon), toWGS24(lat)));
-
 	Area area(RectC(Coordinates(toWGS24(left), toWGS24(top)),
 	  Coordinates(toWGS24(right), toWGS24(bottom))));
+	area.setDescription(cameraDesc(flags));
 
-	switch (type) {
+	waypoints.append(Coordinates(toWGS24(lon), toWGS24(lat)));
-		case 8:
-			area.setDescription(QString("%1&nbsp;mi/h")
-			  .arg(speed(flags)));
-			break;
-		case 9:
-			area.setDescription(QString("%1&nbsp;km/h")
-			  .arg(speed(flags)));
-			break;
-		case 10:
-		case 11:
-			area.setDescription("Red light camera");
-			break;
-	}
-
 	polygons.append(area);
 
 	if (ds > rh.size)
@@ -654,13 +646,15 @@ static quint32 readSymbol(DataStream &stream, QPixmap &pixmap)
 		ds += paletteSize * 4;
 	}
 
-	if (paletteSize) {
+	if (data.size() >= lineSize * height) {
-		img = QImage((uchar*)data.data(), width, height, lineSize,
+		if (paletteSize) {
-		  QImage::Format_Indexed8);
+			img = QImage((uchar*)data.data(), width, height, lineSize,
-		img.setColorTable(palette);
+			  QImage::Format_Indexed8);
-	} else
+			img.setColorTable(palette);
-		img = QImage((uchar*)data.data(), width, height, lineSize,
+		} else
-		  QImage::Format_RGBX8888).rgbSwapped();
+			img = QImage((uchar*)data.data(), width, height, lineSize,
+			  QImage::Format_RGBX8888).rgbSwapped();
+	}
 	pixmap = QPixmap::fromImage(img);
 
 	/* There should be no more data left in the record, but broken GPI files

src/data/twonavparser.cpp

@@ -0,0 +1,223 @@
+#include "common/textcodec.h"
+#include "map/gcs.h"
+#include "twonavparser.h"
+
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
+#define SKIP_EMPTY QString::SkipEmptyParts
+#else // Qt 5.14
+#define SKIP_EMPTY Qt::SkipEmptyParts
+#endif
+
+static double lon(const QString &str)
+{
+	QStringList l(str.split(QChar(0xBA)));
+	if (l.size() < 2)
+		return NAN;
+
+	bool ok;
+	double val = l.at(0).toDouble(&ok);
+	if (!ok)
+		return NAN;
+
+	if (l.at(1) == "W")
+		return -val;
+	else if (l.at(1) == "E")
+		return val;
+	else
+		return NAN;
+}
+
+static double lat(const QString &str)
+{
+	QStringList l(str.split(QChar(0xBA)));
+	if (l.size() < 2)
+		return NAN;
+
+	bool ok;
+	double val = l.at(0).toDouble(&ok);
+	if (!ok)
+		return NAN;
+
+	if (l.at(1) == "S")
+		return -val;
+	else if (l.at(1) == "N")
+		return val;
+	else
+		return NAN;
+}
+
+static QDateTime timestamp(const QString &dateStr, const QString &timeStr)
+{
+	QLocale l("C");
+
+	QDate date(l.toDate(dateStr, "dd-MMM-yy"));
+	if (date.isValid())
+		date = date.addYears(100);
+	else {
+		date = l.toDate(dateStr, "dd-MMM-yyyy");
+		if (!date.isValid())
+			return QDateTime();
+	}
+
+	QTime time(l.toTime(timeStr, "H:m:s.z"));
+	if (!time.isValid()) {
+		time = l.toTime(timeStr, "H:m:s");
+		if (!time.isValid())
+			return QDateTime();
+	}
+
+	return QDateTime(date, time);
+}
+
+bool TwoNavParser::parse(QFile *file, QList<TrackData> &tracks,
+  QList<RouteData> &routes, QList<Area> &polygons,
+  QVector<Waypoint> &waypoints)
+{
+	Q_UNUSED(polygons);
+	TextCodec codec;
+	GCS gcs;
+	bool ok, route = false, track = false, waypoint = false;
+
+	_errorLine = 1;
+	_errorString.clear();
+
+	quint8 bom[3];
+	if (file->peek((char*)bom, sizeof(bom)) == sizeof(bom)
+	  && bom[0] == 0xEF && bom[1] == 0xBB && bom[2] == 0xBF) {
+		file->seek(3);
+		codec = TextCodec(65001);
+	}
+
+	while (!file->atEnd()) {
+		QByteArray line(file->readLine().trimmed());
+		if (!line.size())
+			continue;
+
+		switch (line.at(0)) {
+			case 'B':
+				{line.remove(0, 1);
+				QByteArray encoding(line.trimmed());
+				if (encoding == "UTF-8")
+					codec = TextCodec(65001);
+				else {
+					_errorString = "Invalid/unknown encoding";
+					return false;
+				}}
+				break;
+			case 'G':
+				{line.remove(0, 1);
+				QString datum(line.trimmed());
+				gcs = GCS::gcs(datum);
+				if (gcs.isNull()) {
+					_errorString = "Invalid/unknown datum";
+					return false;
+				}}
+				break;
+			case 'U':
+				{line.remove(0, 1);
+				QByteArray cs(line.trimmed());
+				if (cs != "1") {
+					_errorString = "Invalid/unknown coordinate system";
+					return false;
+				}}
+				break;
+			case 'T':
+				{QStringList list(codec.toString(line).split(' ', SKIP_EMPTY));
+				if (list.size() < 4) {
+					_errorString = "Parse error";
+					return false;
+				}
+				Coordinates c(lon(list.at(3)), lat(list.at(2)));
+				if (!c.isValid()) {
+					_errorString = "Invalid coordinates";
+					return false;
+				}
+
+				Trackpoint t(gcs.toWGS84(c));
+
+				if (list.size() > 5) {
+					QDateTime ts(timestamp(list.at(4), list.at(5)));
+					if (ts.isValid())
+						t.setTimestamp(ts);
+				}
+				if (list.size() > 7) {
+					qreal elevation = list.at(7).toDouble(&ok);
+					if (!ok) {
+						_errorString = "Invalid altitude";
+						return false;
+					}
+					t.setElevation(elevation);
+				}
+
+				if (!track) {
+					tracks.append(TrackData());
+					tracks.last().append(SegmentData());
+					track = true;
+				}
+
+				tracks.last().last().append(t);}
+				break;
+			case 'W':
+				{QStringList list(codec.toString(line).split(' ', SKIP_EMPTY));
+				if (list.size() < 5) {
+					_errorString = "Parse error";
+					return false;
+				}
+				Coordinates c(lon(list.at(4)), lat(list.at(3)));
+				if (!c.isValid()) {
+					_errorString = "Invalid coordinates";
+					return false;
+				}
+
+				Waypoint w(gcs.toWGS84(c));
+				QString name(list.at(1));
+				w.setName(name.replace('_', ' ').trimmed());
+
+				if (list.size() > 6) {
+					QDateTime ts(timestamp(list.at(5), list.at(6)));
+					if (ts.isValid())
+						w.setTimestamp(ts);
+				}
+				if (list.size() > 7) {
+					qreal elevation = list.at(7).toDouble(&ok);
+					if (!ok) {
+						_errorString = "Invalid altitude";
+						return false;
+					}
+					w.setElevation(elevation);
+				}
+				if (list.size() > 8)
+					w.setDescription(list.mid(8).join(' '));
+
+				if (route)
+					routes.last().append(w);
+				else {
+					waypoints.append(w);
+					waypoint = true;
+				}}
+				break;
+			case 'w':
+				{line.remove(0, 1);
+				QStringList list(codec.toString(line).split(','));
+				if (list.size() && waypoints.size())
+					waypoints.last().setSymbol(list.at(0).trimmed());}
+				break;
+			case 'R':
+				{QStringList list(codec.toString(line).split(','));
+				routes.append(RouteData());
+				if (list.size() > 1)
+					routes.last().setName(list.at(1));
+				route = true;}
+				break;
+		}
+
+		_errorLine++;
+	}
+
+	if (!(waypoint | route | track)) {
+		_errorString = "No valid data found";
+		return false;
+	} else
+		return true;
+}

src/data/twonavparser.h

@@ -0,0 +1,21 @@
+#ifndef TWONAVPARSER_H
+#define TWONAVPARSER_H
+
+#include "parser.h"
+
+class TwoNavParser : public Parser
+{
+public:
+	TwoNavParser() : _errorLine(0) {}
+
+	bool parse(QFile *file, QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Area> &polygons, QVector<Waypoint> &waypoints);
+	QString errorString() const {return _errorString;}
+	int errorLine() const {return _errorLine;}
+
+private:
+	QString _errorString;
+	int _errorLine;
+};
+
+#endif // TWONAVPARSER_H

src/data/waypoint.cpp

@@ -27,6 +27,9 @@ QPair<qreal, qreal> Waypoint::elevations() const
 
 void Waypoint::loadSymbolIcons(const QString &dir)
 {
+	if (dir.isEmpty())
+		return;
+
 	QDir d(dir);
 	QFileInfoList files(d.entryInfoList(QDir::Files | QDir::Readable));
 

src/map/IMG/subfile.h

@@ -26,7 +26,7 @@ public:
 
 			_data.resize(1U<<subFile->blockBits());
 			_file.setFileName(subFile->fileName());
-			_file.open(QIODevice::ReadOnly);
+			_file.open(QIODevice::ReadOnly | QIODevice::Unbuffered);
 		}
 
 	private:

src/map/textpointitem.cpp

@@ -40,7 +40,7 @@ void TextPointItem::setPos(const QPoint &point, bool padding)
 	QPainterPath shape;
 	QRect iconRect;
 
-	if (_img) {
+	if (_img && !_img->isNull()) {
 		QSize s(_img->size() / _img->devicePixelRatioF());
 		int xOffset = padding ? s.width() : s.width() / 2;
 		iconRect = QRect(QPoint(point.x() - xOffset, point.y()
@@ -57,7 +57,7 @@ void TextPointItem::setPos(const QPoint &point, bool padding)
 
 void TextPointItem::paint(QPainter *painter) const
 {
-	if (_img) {
+	if (_img && !_img->isNull()) {
 		QSize s(_img->size() / _img->devicePixelRatioF());
 		painter->drawImage(QPoint(_rect.left(), _rect.center().y()
 		  - s.height()/2), *_img);