Fixed switched default values

Version++.

Info.plist

@@ -35,6 +35,86 @@
 			<key>CFBundleTypeRole</key>
 			<string>Viewer</string>
 		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>tcx</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/tcx+xml</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>tcx.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>Training Center XML</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>kml</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.google-earth.kml+xml</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>kml.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>Keyhole Markup Language</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>fit</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.ant.fit</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>fit.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>Flexible and Interoperable Data Transfer</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>igc</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.fai.igc</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>igc.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>Flight Recorder Data Format</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>nmea</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.nmea.nmea</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>nmea.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>NMEA 0183 data</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
 	</array>
 
 	<key>UTImportedTypeDeclarations</key>
@@ -60,6 +140,111 @@
 				<string>application/gpx+xml</string>
 			</dict>
 		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>com.garmin.tcx</string>
+			<key>UTTypeReferenceURL</key>
+			<string>http://www8.garmin.com/xmlschemas/TrainingCenterDatabasev2.xsd</string>
+			<key>UTTypeDescription</key>
+			<string>Training Center XML</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.xml</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>tcx</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/tcx+xml</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>com.google.kml</string>
+			<key>UTTypeReferenceURL</key>
+			<string>https://developers.google.com/kml/documentation/kmlreference</string>
+			<key>UTTypeDescription</key>
+			<string>Keyhole Markup Language</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.xml</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>kml</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.google-earth.kml+xml</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>com.thisisant.fit</string>
+			<key>UTTypeReferenceURL</key>
+			<string>https://www.thisisant.com/resources/fit</string>
+			<key>UTTypeDescription</key>
+			<string>Flexible and Interoperable Data Transfer</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>fit</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.ant.fit</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>org.fai.igc</string>
+			<key>UTTypeReferenceURL</key>
+			<string>http://www.fai.org/gnss-recording-devices/igc-approved-flight-recorders</string>
+			<key>UTTypeDescription</key>
+			<string>Flight Recorder Data Format</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>igc</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.fai.igc</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>org.nmea.nmea</string>
+			<key>UTTypeReferenceURL</key>
+			<string>http://www.nmea.org/content/nmea_standards/nmea_0183_v_410.asp</string>
+			<key>UTTypeDescription</key>
+			<string>NMEA 0183 data</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>nmea</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.nmea.nmea</string>
+			</dict>
+		</dict>
 	</array>
 
 </dict>

README.md

@@ -1,13 +1,16 @@
 # GPXSee
-GPX viewer and analyzer.
+GPXSee is a Qt-based GPS log file viewer and analyzer that supports GPX, TCX,
+KML, FIT, IGC and NMEA files.
 
+## Features
 * User-definable map sources.
-* Track and elevation/speed/heart rate graphs.
+* Elevation, speed, heart rate, cadence, power and temperature graphs.
 * Support for multiple tracks in one view.
 * Support for POI files.
-* Export to PDF.
-* Full-screen mode
+* Print/export to PDF.
+* Full-screen mode.
 * Native GUI for Windows, Mac OS X and Linux.
+* Opens GPX, TCX, FIT, KML, IGC, NMEA and Garmin CSV files.
 
 ![GPXSee - Linux](https://a.fsdn.com/con/app/proj/gpxsee/screenshots/linux.png)
 

gpxsee.pro

@@ -1,18 +1,16 @@
 TARGET = GPXSee
-VERSION = 2.14
+VERSION = 3.3
 QT += core \
     gui \
     network
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 greaterThan(QT_MAJOR_VERSION, 4): QT += printsupport
+lessThan(QT_MAJOR_VERSION, 5) : QT += opengl
 HEADERS += src/config.h \
     src/icons.h \
     src/gui.h \
-    src/gpx.h \
-    src/parser.h \
     src/poi.h \
     src/rtree.h \
-    src/ll.h \
     src/axisitem.h \
     src/keys.h \
     src/slideritem.h \
@@ -27,9 +25,7 @@ HEADERS += src/config.h \
     src/downloader.h \
     src/units.h \
     src/scaleitem.h \
-    src/nicenum.h \
     src/waypoint.h \
-    src/trackview.h \
     src/track.h \
     src/graphview.h \
     src/trackpoint.h \
@@ -43,13 +39,45 @@ HEADERS += src/config.h \
     src/trackinfo.h \
     src/exportdialog.h \
     src/fileselectwidget.h \
-    src/margins.h
+    src/margins.h \
+    src/temperaturegraph.h \
+    src/graphtab.h \
+    src/misc.h \
+    src/trackitem.h \
+    src/tooltip.h \
+    src/route.h \
+    src/routeitem.h \
+    src/graphitem.h \
+    src/graph.h \
+    src/pathitem.h \
+    src/pathview.h \
+    src/griditem.h \
+    src/data.h \
+    src/gpxparser.h \
+    src/tcxparser.h \
+    src/parser.h \
+    src/csvparser.h \
+    src/coordinates.h \
+    src/tile.h \
+    src/rd.h \
+    src/wgs84.h \
+    src/kmlparser.h \
+    src/trackdata.h \
+    src/routedata.h \
+    src/fitparser.h \
+    src/format.h \
+    src/path.h \
+    src/assert.h \
+    src/cadencegraph.h \
+    src/powergraph.h \
+    src/igcparser.h \
+    src/nmeaparser.h \
+    src/optionsdialog.h \
+    src/colorbox.h \
+    src/stylecombobox.h
 SOURCES += src/main.cpp \
     src/gui.cpp \
-    src/gpx.cpp \
-    src/parser.cpp \
     src/poi.cpp \
-    src/ll.cpp \
     src/axisitem.cpp \
     src/slideritem.cpp \
     src/markeritem.cpp \
@@ -62,8 +90,6 @@ SOURCES += src/main.cpp \
     src/maplist.cpp \
     src/downloader.cpp \
     src/scaleitem.cpp \
-    src/nicenum.cpp \
-    src/trackview.cpp \
     src/track.cpp \
     src/graphview.cpp \
     src/waypointitem.cpp \
@@ -73,19 +99,58 @@ SOURCES += src/main.cpp \
     src/app.cpp \
     src/trackinfo.cpp \
     src/exportdialog.cpp \
-    src/fileselectwidget.cpp
+    src/fileselectwidget.cpp \
+    src/temperaturegraph.cpp \
+    src/trackpoint.cpp \
+    src/misc.cpp \
+    src/waypoint.cpp \
+    src/trackitem.cpp \
+    src/tooltip.cpp \
+    src/route.cpp \
+    src/routeitem.cpp \
+    src/graphitem.cpp \
+    src/pathitem.cpp \
+    src/pathview.cpp \
+    src/griditem.cpp \
+    src/data.cpp \
+    src/gpxparser.cpp \
+    src/tcxparser.cpp \
+    src/csvparser.cpp \
+    src/coordinates.cpp \
+    src/kmlparser.cpp \
+    src/fitparser.cpp \
+    src/format.cpp \
+    src/graph.cpp \
+    src/cadencegraph.cpp \
+    src/powergraph.cpp \
+    src/igcparser.cpp \
+    src/path.cpp \
+    src/nmeaparser.cpp \
+    src/optionsdialog.cpp \
+    src/colorbox.cpp \
+    src/stylecombobox.cpp
 RESOURCES += gpxsee.qrc
 TRANSLATIONS = lang/gpxsee_cs.ts
 macx {
     ICON = icons/gpxsee.icns
     QMAKE_INFO_PLIST = Info.plist
     APP_RESOURCES.files = icons/gpx.icns \
+        icons/tcx.icns \
+        icons/kml.icns \
+        icons/fit.icns \
+        icons/igc.icns \
+        icons/nmea.icns \
         pkg/maps.txt
     APP_RESOURCES.path = Contents/Resources
     QMAKE_BUNDLE_DATA += APP_RESOURCES
 }
 win32 {
     RC_ICONS = icons/gpxsee.ico \
-        icons/gpx.ico
+        icons/gpx.ico \
+        icons/tcx.ico \
+        icons/kml.ico \
+        icons/fit.ico \
+        icons/igc.ico \
+        icons/nmea.ico
 }
 DEFINES += APP_VERSION=\\\"$$VERSION\\\"

gpxsee.qrc

@@ -14,6 +14,10 @@
         <file>icons/arrow-left-double.png</file>
         <file>icons/arrow-right-double.png</file>
         <file>icons/view-fullscreen.png</file>
+        <file>icons/office-chart-line-stacked.png</file>
+        <file>icons/preferences-desktop-display.png</file>
+        <file>icons/flag_48.png</file>
+        <file>icons/system-run.png</file>
         <file>lang/gpxsee_cs.qm</file>
     </qresource>
 </RCC>

icons/fit.svg

@@ -0,0 +1,171 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   version="1.1"
+   id="svg3390"
+   height="185"
+   width="185"
+   inkscape:version="0.91 r13725"
+   sodipodi:docname="fit.svg">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1440"
+     inkscape:window-height="815"
+     id="namedview3427"
+     showgrid="false"
+     inkscape:zoom="3.1351351"
+     inkscape:cx="92.5"
+     inkscape:cy="92.5"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg3390" />
+  <metadata
+     id="metadata3404">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs3402" />
+  <path
+     style="fill:#ffffff;stroke:#999999;stroke-width:2.18774867"
+     id="path3392"
+     d="m 128.23996,2.2548915 -95.377018,0 0,181.0580085 134.394868,0 0,-141.313567 z m 0,0 0,39.7444415 39.01785,0" />
+  <rect
+     y="124.9782"
+     x="16.573463"
+     height="49.84631"
+     width="120.3215"
+     id="rect3426"
+     style="fill:#006600;fill-opacity:1;stroke:none;stroke-width:2;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1" />
+  <g
+     id="g3828"
+     transform="matrix(0.89093793,0,0,0.84489692,3.5017807,-51.565424)">
+    <g
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+    </g>
+    <polyline
+       style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:4"
+       points="62.3563,178.566 73.5,125.854 96,151.875 113,90.875 136.5,172.375 148.831,160.03 "
+       id="polyline3721" />
+    <g
+       id="g3723">
+      <circle
+         style="fill:#000000"
+         cx="73.5"
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+         r="7.0209999" />
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+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2"
+         cx="73.5"
+         cy="125.854"
+         id="ellipse3727"
+         r="7.0209999" />
+    </g>
+    <g
+       id="g3729">
+      <circle
+         style="fill:#000000"
+         cx="136.5"
+         cy="172.375"
+         id="ellipse3731"
+         r="7.0209999" />
+      <circle
+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2"
+         cx="136.5"
+         cy="172.375"
+         id="ellipse3733"
+         r="7.0209999" />
+    </g>
+    <g
+       id="g3735">
+      <circle
+         style="fill:#000000"
+         cx="60.700001"
+         cy="186.39999"
+         id="ellipse3737"
+         r="7.0209999" />
+      <circle
+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2"
+         cx="60.700001"
+         cy="186.39999"
+         id="ellipse3739"
+         r="7.0209999" />
+    </g>
+    <g
+       id="g3741">
+      <circle
+         style="fill:#000000"
+         cx="154.5"
+         cy="154.354"
+         id="ellipse3743"
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+         cx="154.5"
+         cy="154.354"
+         id="ellipse3745"
+         r="7.0209999" />
+    </g>
+    <g
+       id="g3747">
+      <circle
+         style="fill:#000000"
+         cx="96"
+         cy="151.875"
+         id="ellipse3749"
+         r="7.0209999" />
+      <circle
+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2"
+         cx="96"
+         cy="151.875"
+         id="ellipse3751"
+         r="7.0209999" />
+    </g>
+  </g>
+  <text
+     transform="scale(0.9437456,1.0596076)"
+     id="text3921"
+     y="155.86783"
+     x="44.388157"
+     style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:40px;line-height:100%;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Bold';text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+     xml:space="preserve"
+     sodipodi:linespacing="100%"><tspan
+       sodipodi:role="line"
+       id="tspan3429"
+       x="44.388157"
+       y="155.86783">FIT</tspan></text>
+</svg>

icons/gpx.svg

@@ -0,0 +1,146 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg3390"
+   height="185"
+   width="185">
+  <metadata
+     id="metadata3404">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs3402" />
+  <path
+     style="fill:#ffffff;stroke:#999999;stroke-width:2.18774867"
+     id="path3392"
+     d="m 128.23996,2.2548915 -95.377018,0 0,181.0580085 134.394868,0 0,-141.313567 z m 0,0 0,39.7444415 39.01785,0" />
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+      <circle
+         r="7.0209999"
+         id="ellipse3743"
+         cy="154.354"
+         cx="154.5"
+         style="fill:#000000" />
+      <circle
+         r="7.0209999"
+         id="ellipse3745"
+         cy="154.354"
+         cx="154.5"
+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2" />
+    </g>
+    <g
+       id="g3747">
+      <circle
+         r="7.0209999"
+         id="ellipse3749"
+         cy="151.875"
+         cx="96"
+         style="fill:#000000" />
+      <circle
+         r="7.0209999"
+         id="ellipse3751"
+         cy="151.875"
+         cx="96"
+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2" />
+    </g>
+  </g>
+  <text
+     xml:space="preserve"
+     style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:40px;line-height:100%;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Bold';text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+     x="35.911289"
+     y="155.86783"
+     id="text3921"
+     transform="scale(0.9437456,1.0596076)"><tspan
+       y="155.86783"
+       x="35.911289"
+       id="tspan3429">TCX</tspan></text>
+</svg>

pkg/gpxsee.nsi

@@ -4,7 +4,7 @@
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "2.14"
+!define VERSION "3.3"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}.exe"
@@ -21,8 +21,13 @@ InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
 
 ; Registry key for uninstaller
 !define REGENTRY "Software\Microsoft\Windows\CurrentVersion\Uninstall\GPXSee"
-; GPX file type registry entry
+; File types registry entries
 !define REGGPX "GPXSee.gpx"
+!define REGTCX "GPXSee.tcx"
+!define REGKML "GPXSee.kml"
+!define REGFIT "GPXSee.fit"
+!define REGIGC "GPXSee.igc"
+!define REGNMEA "GPXSee.nmea"
 
 ; Start menu page configuration
 !define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKLM" 
@@ -62,18 +67,6 @@ Section "GPXSee (required)" SEC_APP
   ; Put the files there
   File "gpxsee.exe"
   File "maps.txt"
-  
-  ; Write the installation path into the registry
-  WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
-  
-  ; Write the uninstall keys for Windows
-  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
-  WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
-  WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
-  WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
-  WriteRegDWORD HKLM "${REGENTRY}" "NoModify" 1
-  WriteRegDWORD HKLM "${REGENTRY}" "NoRepair" 1
-  WriteUninstaller "$INSTDIR\uninstall.exe"
 
   ; Create start menu entry and add links
   SetShellVarContext all
@@ -83,11 +76,48 @@ Section "GPXSee (required)" SEC_APP
     CreateShortCut "$SMPROGRAMS\$StartMenuFolder\GPXSee.lnk" "$INSTDIR\gpxsee.exe"
   !insertmacro MUI_STARTMENU_WRITE_END
 
-  ; Associate .gpx files
+  ; Create the uninstaller
+  WriteUninstaller "$INSTDIR\uninstall.exe" 
+
+  ; Write the installation path into the registry
+  DetailPrint "Registering application..."
+  WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
+
+  ; Write the uninstall keys for Windows
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
+  WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "${REGENTRY}" "NoModify" 1
+  WriteRegDWORD HKLM "${REGENTRY}" "NoRepair" 1
+
+  ; Associate file formats
+  DetailPrint "Associating file types..."
   WriteRegStr HKCR ".gpx" "" "${REGGPX}"
   WriteRegStr HKCR "${REGGPX}" ""  "GPS Exchange Format"
   WriteRegStr HKCR "${REGGPX}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,1"
   WriteRegStr HKCR "${REGGPX}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".tcx" "" "${REGTCX}"
+  WriteRegStr HKCR "${REGTCX}" ""  "Training Center XML"
+  WriteRegStr HKCR "${REGTCX}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,2"
+  WriteRegStr HKCR "${REGTCX}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".kml" "" "${REGKML}"
+  WriteRegStr HKCR "${REGKML}" ""  "Keyhole Markup Language"
+  WriteRegStr HKCR "${REGKML}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,3"
+  WriteRegStr HKCR "${REGKML}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".fit" "" "${REGFIT}"
+  WriteRegStr HKCR "${REGFIT}" ""  "Flexible and Interoperable Data Transfer"
+  WriteRegStr HKCR "${REGFIT}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,4"
+  WriteRegStr HKCR "${REGFIT}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".igc" "" "${REGIGC}"
+  WriteRegStr HKCR "${REGIGC}" ""  "Flight Recorder Data Format"
+  WriteRegStr HKCR "${REGIGC}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,5"
+  WriteRegStr HKCR "${REGIGC}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".nmea" "" "${REGNMEA}"
+  WriteRegStr HKCR "${REGNMEA}" ""  "NMEA 0183 data"
+  WriteRegStr HKCR "${REGNMEA}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,6"
+  WriteRegStr HKCR "${REGNMEA}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
 SectionEnd
@@ -100,8 +130,11 @@ Section "QT libs" SEC_QT
   File "Qt5PrintSupport.dll"
   File "Qt5Network.dll"
   File "libGLESv2.dll"
+  File "libEGL.dll"
+  File "D3DCompiler_47.dll"
   File /r "platforms"
   File /r "imageformats"
+  File /r "printsupport"
  
 SectionEnd
 
@@ -148,6 +181,16 @@ Section "Uninstall"
   ; Remove GPX file association
   DeleteRegKey HKCR "${REGGPX}"
   DeleteRegKey HKCR ".gpx"
+  DeleteRegKey HKCR "${REGTCX}"
+  DeleteRegKey HKCR ".tcx"
+  DeleteRegKey HKCR "${REGKML}"
+  DeleteRegKey HKCR ".kml"
+  DeleteRegKey HKCR "${REGFIT}"
+  DeleteRegKey HKCR ".fit"
+  DeleteRegKey HKCR "${REGIGC}"
+  DeleteRegKey HKCR ".igc"
+  DeleteRegKey HKCR "${REGNMEA}"
+  DeleteRegKey HKCR ".nmea"
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'  
 
 SectionEnd
@@ -169,4 +212,4 @@ LangString DESC_APP ${LANG_ENGLISH} \
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_QT} $(DESC_QT)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
-!insertmacro MUI_FUNCTION_DESCRIPTION_END
+!insertmacro MUI_FUNCTION_DESCRIPTION_END

pkg/gpxsee64.nsi

@@ -4,7 +4,7 @@
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "2.14"
+!define VERSION "3.3"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"
@@ -21,8 +21,13 @@ InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
 
 ; Registry key for uninstaller
 !define REGENTRY "Software\Microsoft\Windows\CurrentVersion\Uninstall\GPXSee"
-; GPX file type registry entry
-!define REGGPX "GPXSee.gpx" 
+; File types registry entries
+!define REGGPX "GPXSee.gpx"
+!define REGTCX "GPXSee.tcx"
+!define REGKML "GPXSee.kml"
+!define REGFIT "GPXSee.fit"
+!define REGIGC "GPXSee.igc"
+!define REGNMEA "GPXSee.nmea"
 
 ; Start menu page configuration
 !define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKLM" 
@@ -71,18 +76,6 @@ Section "GPXSee (required)" SEC_APP
   File "gpxsee.exe"
   File "maps.txt"
   
-  ; Write the installation path into the registry
-  WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
-  
-  ; Write the uninstall keys for Windows
-  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
-  WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
-  WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
-  WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
-  WriteRegDWORD HKLM "${REGENTRY}" "NoModify" 1
-  WriteRegDWORD HKLM "${REGENTRY}" "NoRepair" 1
-  WriteUninstaller "$INSTDIR\uninstall.exe"
-
   ; Create start menu entry and add links
   SetShellVarContext all
   !insertmacro MUI_STARTMENU_WRITE_BEGIN Application  
@@ -91,11 +84,48 @@ Section "GPXSee (required)" SEC_APP
     CreateShortCut "$SMPROGRAMS\$StartMenuFolder\GPXSee.lnk" "$INSTDIR\gpxsee.exe"
   !insertmacro MUI_STARTMENU_WRITE_END
 
-  ; Associate .gpx files
+  ; Create the uninstaller
+  WriteUninstaller "$INSTDIR\uninstall.exe"
+  
+  ; Write the installation path into the registry
+  DetailPrint "Registering application..."
+  WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
+
+  ; Write the uninstall keys for Windows
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
+  WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "${REGENTRY}" "NoModify" 1
+  WriteRegDWORD HKLM "${REGENTRY}" "NoRepair" 1
+
+  ; Associate file formats
+  DetailPrint "Associating file types..."
   WriteRegStr HKCR ".gpx" "" "${REGGPX}"
   WriteRegStr HKCR "${REGGPX}" ""  "GPS Exchange Format"
   WriteRegStr HKCR "${REGGPX}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,1"
   WriteRegStr HKCR "${REGGPX}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".tcx" "" "${REGTCX}"
+  WriteRegStr HKCR "${REGTCX}" ""  "Training Center XML"
+  WriteRegStr HKCR "${REGTCX}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,2"
+  WriteRegStr HKCR "${REGTCX}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".kml" "" "${REGKML}"
+  WriteRegStr HKCR "${REGKML}" ""  "Keyhole Markup Language"
+  WriteRegStr HKCR "${REGKML}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,3"
+  WriteRegStr HKCR "${REGKML}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".fit" "" "${REGFIT}"
+  WriteRegStr HKCR "${REGFIT}" ""  "Flexible and Interoperable Data Transfer"
+  WriteRegStr HKCR "${REGFIT}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,4"
+  WriteRegStr HKCR "${REGFIT}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".igc" "" "${REGIGC}"
+  WriteRegStr HKCR "${REGIGC}" ""  "Flight Recorder Data Format"
+  WriteRegStr HKCR "${REGIGC}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,5"
+  WriteRegStr HKCR "${REGIGC}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".nmea" "" "${REGNMEA}"
+  WriteRegStr HKCR "${REGNMEA}" ""  "NMEA 0183 data"
+  WriteRegStr HKCR "${REGNMEA}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,6"
+  WriteRegStr HKCR "${REGNMEA}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
 SectionEnd
@@ -108,8 +138,11 @@ Section "QT libs" SEC_QT
   File "Qt5PrintSupport.dll"
   File "Qt5Network.dll"
   File "libGLESv2.dll"
+  File "libEGL.dll"
+  File "D3DCompiler_47.dll"
   File /r "platforms"
   File /r "imageformats"
+  File /r "printsupport"
  
 SectionEnd
 
@@ -149,9 +182,19 @@ Section "Uninstall"
   Delete "$SMPROGRAMS\$StartMenuFolder\*.*"
   RMDir "$SMPROGRAMS\$StartMenuFolder"
   
-  ; Remove GPX file association
+  ; Remove File associations
   DeleteRegKey HKCR "${REGGPX}"
   DeleteRegKey HKCR ".gpx"
+  DeleteRegKey HKCR "${REGTCX}"
+  DeleteRegKey HKCR ".tcx"
+  DeleteRegKey HKCR "${REGKML}"
+  DeleteRegKey HKCR ".kml"
+  DeleteRegKey HKCR "${REGFIT}"
+  DeleteRegKey HKCR ".fit"
+  DeleteRegKey HKCR "${REGIGC}"
+  DeleteRegKey HKCR ".igc"
+  DeleteRegKey HKCR "${REGNMEA}"
+  DeleteRegKey HKCR ".nmea"
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
 SectionEnd
@@ -173,4 +216,4 @@ LangString DESC_APP ${LANG_ENGLISH} \
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_QT} $(DESC_QT)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
-!insertmacro MUI_FUNCTION_DESCRIPTION_END
+!insertmacro MUI_FUNCTION_DESCRIPTION_END

src/app.cpp

@@ -2,6 +2,13 @@
 #include <QTranslator>
 #include <QLocale>
 #include <QFileOpenEvent>
+#include <QNetworkProxyFactory>
+#include <QPixmapCache>
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+#include <QGLFormat>
+#else // QT 5
+#include <QSurfaceFormat>
+#endif // QT 5
 #include "gui.h"
 #include "app.h"
 
@@ -18,6 +25,20 @@ App::App(int &argc, char **argv) : QApplication(argc, argv),
 	setAttribute(Qt::AA_DontShowIconsInMenus);
 #endif // Q_OS_MAC
 
+	QNetworkProxyFactory::setUseSystemConfiguration(true);
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+	QGLFormat fmt;
+	fmt.setSamples(10);
+	QGLFormat::setDefaultFormat(fmt);
+#else
+	QSurfaceFormat fmt;
+	fmt.setSamples(4);
+	QSurfaceFormat::setDefaultFormat(fmt);
+#endif
+
+	QPixmapCache::setCacheLimit(65536);
+
 	_gui = new GUI();
 }
 

src/assert.h

@@ -0,0 +1,11 @@
+#ifndef ASSERT_H
+#define ASSERT_H
+
+template<bool> struct CompileTimeAssert;
+template<> struct CompileTimeAssert <true> {};
+
+#define STATIC_ASSERT(e) \
+	(CompileTimeAssert <(e) != 0>())
+
+#endif // ASSERT_H
+

src/axisitem.cpp

@@ -1,10 +1,11 @@
 #include <cmath>
 #include <QPainter>
 #include "config.h"
-#include "nicenum.h"
+#include "misc.h"
 #include "axisitem.h"
 
 
+#define AXIS_WIDTH  1
 #define TICK        6
 #define PADDING     6
 #define XTICKS      15
@@ -34,6 +35,10 @@ AxisItem::AxisItem(Type type, QGraphicsItem *parent) : QGraphicsItem(parent)
 {
 	_type = type;
 	_size = 0;
+
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
 }
 
 void AxisItem::setRange(const RangeF &range)
@@ -41,6 +46,7 @@ void AxisItem::setRange(const RangeF &range)
 	prepareGeometryChange();
 	_range = range;
 	updateBoundingRect();
+	update();
 }
 
 void AxisItem::setSize(qreal size)
@@ -48,6 +54,7 @@ void AxisItem::setSize(qreal size)
 	prepareGeometryChange();
 	_size = size;
 	updateBoundingRect();
+	update();
 }
 
 void AxisItem::setLabel(const QString& label)
@@ -55,6 +62,7 @@ void AxisItem::setLabel(const QString& label)
 	prepareGeometryChange();
 	_label = label;
 	updateBoundingRect();
+	update();
 }
 
 void AxisItem::updateBoundingRect()
@@ -75,7 +83,7 @@ void AxisItem::updateBoundingRect()
 	if (_type == X) {
 		_boundingRect = QRectF(-ss.width()/2, -TICK/2,
 		_size + es.width()/2 + ss.width()/2,
-		ls.height() + es.height() - fm.descent() + TICK + 2*PADDING);
+		ls.height() + es.height() - fm.descent() + TICK + 2*PADDING + 1);
 	} else {
 		int mtw = 0;
 		QRect ts;
@@ -88,9 +96,8 @@ void AxisItem::updateBoundingRect()
 			mtw = qMax(ts.width(), mtw);
 		}
 
-		_boundingRect = QRectF(-(ls.height() + mtw + 2*PADDING
-		  - fm.descent() + TICK/2), -(_size + es.height()/2
-		  + fm.descent()), ls.height() -fm.descent() + mtw + 2*PADDING
+		_boundingRect = QRectF(-(ls.height() + mtw + 2*PADDING + TICK/2),
+		  -(_size + es.height()/2 + fm.descent()), ls.height() + mtw + 2*PADDING
 		  + TICK, _size + es.height()/2 + fm.descent() + ss.height()/2);
 	}
 }
@@ -108,9 +115,12 @@ void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	struct Label l;
 	qreal range = _range.size();
 	qreal val;
+	QPen pen = QPen(Qt::black, AXIS_WIDTH);
 
 
+	painter->setRenderHint(QPainter::Antialiasing, false);
 	painter->setFont(font);
+	painter->setPen(pen);
 
 	ls = fm.tightBoundingRect(_label);
 
@@ -193,3 +203,16 @@ QSizeF AxisItem::margin() const
 		  + TICK/2, es.height()/2 + fm.descent());
 	}
 }
+
+QList<qreal> AxisItem::ticks() const
+{
+	struct Label l;
+	QList<qreal> list;
+
+	l = label(_range.min(), _range.max(), (_type == X) ? XTICKS : YTICKS);
+	for (int i = 0; i < ((l.max - l.min) / l.d) + 1; i++)
+		list.append(((_size/_range.size()) * ((l.min + i * l.d)
+		  - _range.min())));
+
+	return list;
+}

src/axisitem.h

@@ -20,6 +20,7 @@ public:
 	void setLabel(const QString& label);
 
 	QSizeF margin() const;
+	QList<qreal> ticks() const;
 
 private:
 	void updateBoundingRect();

src/cadencegraph.cpp

@@ -0,0 +1,84 @@
+#include "data.h"
+#include "cadencegraph.h"
+
+
+CadenceGraph::CadenceGraph(QWidget *parent) : GraphTab(parent)
+{
+	_units = Metric;
+	_showTracks = true;
+
+	GraphView::setYUnits(tr("1/min"));
+	setYLabel(tr("Cadence"));
+
+	setSliderPrecision(1);
+}
+
+void CadenceGraph::setInfo()
+{
+	if (_showTracks) {
+		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
+	} else
+		clearInfo();
+}
+
+void CadenceGraph::loadData(const Data &data, const QList<PathItem *> &paths)
+{
+	for (int i = 0; i < data.tracks().count(); i++) {
+		const Graph &graph = data.tracks().at(i)->cadence();
+		qreal sum = 0, w = 0;
+
+		if (graph.size() < 2) {
+			skipColor();
+			continue;
+		}
+
+		for (int j = 1; j < graph.size(); j++) {
+			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+			sum += graph.at(j).y() * ds;
+			w += ds;
+		}
+		_avg.append(QPointF(data.tracks().at(i)->distance(), sum/w));
+
+		GraphView::loadGraph(graph, paths.at(i));
+	}
+
+	for (int i = 0; i < data.routes().count(); i++)
+		skipColor();
+
+	setInfo();
+
+	redraw();
+}
+
+qreal CadenceGraph::avg() const
+{
+	qreal sum = 0, w = 0;
+	QList<QPointF>::const_iterator it;
+
+	for (it = _avg.begin(); it != _avg.end(); it++) {
+		sum += it->y() * it->x();
+		w += it->x();
+	}
+
+	return (sum / w);
+}
+
+void CadenceGraph::clear()
+{
+	_avg.clear();
+
+	GraphView::clear();
+}
+
+void CadenceGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	showGraph(show);
+	setInfo();
+
+	redraw();
+}

src/cadencegraph.h

@@ -0,0 +1,31 @@
+#ifndef CADENCEGRAPH_H
+#define CADENCEGRAPH_H
+
+#include "graphtab.h"
+
+class CadenceGraph : public GraphTab
+{
+	Q_OBJECT
+
+public:
+	CadenceGraph(QWidget *parent = 0);
+
+	QString label() const {return tr("Cadence");}
+	void loadData(const Data &data, const QList<PathItem *> &paths);
+	void clear();
+	void setUnits(enum Units) {}
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
+
+private:
+	qreal avg() const;
+	qreal max() const {return bounds().bottom();}
+	void setInfo();
+
+	QList<QPointF> _avg;
+
+	enum Units _units;
+	bool _showTracks;
+};
+
+#endif // CADENCEGRAPH_H

src/colorbox.cpp

@@ -0,0 +1,68 @@
+#include <QStylePainter>
+#include <QStyleOptionComboBox>
+#include <QMouseEvent>
+#include <QColorDialog>
+#include <QComboBox>
+#include "colorbox.h"
+
+
+ColorBox::ColorBox(QWidget *parent) : QWidget(parent)
+{
+	_color = Qt::red;
+	setSizePolicy(QSizePolicy::QSizePolicy::Minimum, QSizePolicy::Fixed);
+}
+
+QSize ColorBox::sizeHint() const
+{
+	static QSize size;
+	if (size.isValid())
+		return size;
+
+	QComboBox cb;
+	size = cb.sizeHint();
+	return size;
+}
+
+void ColorBox::paintEvent(QPaintEvent *event)
+{
+	Q_UNUSED(event);
+
+    QStylePainter painter(this);
+
+    QStyleOptionComboBox option;
+	option.initFrom(this);
+
+#if defined(Q_OS_MAC) || defined(Q_OS_WIN32)
+	painter.setBrush(_color);
+	painter.drawPrimitive(QStyle::PE_Frame, option);
+#else // Q_OS_MAC || Q_OS_WIN32
+	// Fallback for some broken QT4 styles that do not draw the background
+	painter.setBrush(_color);
+	painter.setPen(Qt::NoPen);
+	painter.drawRect(event->rect().adjusted(2, 2, -2, -2));
+	// If works (QT5 and most QT4 styles) overpaints the previous rectangle
+	option.palette.setBrush(QPalette::Base, _color);
+	painter.drawPrimitive(QStyle::PE_PanelLineEdit, option);
+	painter.drawPrimitive(QStyle::PE_FrameLineEdit, option);
+#endif // Q_OS_MAC || Q_OS_WIN32
+}
+
+void ColorBox::mousePressEvent(QMouseEvent *event)
+{
+	if (event->button() != Qt::LeftButton)
+		return;
+
+	QColor color = QColorDialog::getColor(_color, this, QString(),
+	  QColorDialog::ShowAlphaChannel);
+	if (color.isValid()) {
+		_color = color;
+		update();
+		emit colorChanged(_color);
+	}
+}
+
+void ColorBox::setColor(const QColor &color)
+{
+	_color = color;
+	update();
+}

src/colorbox.h

@@ -0,0 +1,29 @@
+#ifndef COLORBOX_H
+#define COLORBOX_H
+
+#include <QWidget>
+
+class ColorBox : public QWidget
+{
+	Q_OBJECT
+
+public:
+	ColorBox(QWidget *parent = 0);
+
+	const QColor &color() const {return _color;}
+	void setColor(const QColor &color);
+
+	QSize sizeHint() const;
+
+signals:
+	void colorChanged(const QColor &color);
+
+protected:
+	void mousePressEvent(QMouseEvent *event);
+	void paintEvent(QPaintEvent *event);
+
+private:
+	QColor _color;
+};
+
+#endif // COLORBOX_H

src/coordinates.cpp

@@ -0,0 +1,69 @@
+#include "rd.h"
+#include "wgs84.h"
+#include "coordinates.h"
+
+#define MIN_LAT deg2rad(-90.0)
+#define MAX_LAT deg2rad(90.0)
+#define MIN_LON deg2rad(-180.0)
+#define MAX_LON deg2rad(180.0)
+
+qreal Coordinates::distanceTo(const Coordinates &c) const
+{
+	qreal dLat = deg2rad(c.lat() - _lat);
+	qreal dLon = deg2rad(c.lon() - _lon);
+	qreal a = pow(sin(dLat / 2.0), 2.0)
+	  + cos(deg2rad(_lat)) * cos(deg2rad(c.lat())) * pow(sin(dLon / 2.0), 2.0);
+
+	return (WGS84_RADIUS * (2.0 * atan2(sqrt(a), sqrt(1.0 - a))));
+}
+
+QPointF Coordinates::toMercator() const
+{
+	return QPointF(_lon, rad2deg(log(tan(M_PI/4.0 + deg2rad(_lat)/2.0))));
+}
+
+Coordinates Coordinates::fromMercator(const QPointF &m)
+{
+	return Coordinates(m.x(), rad2deg(2 * atan(exp(deg2rad(m.y()))) - M_PI/2));
+}
+
+bool operator==(const Coordinates &c1, const Coordinates &c2)
+{
+	return (c1.lat() == c2.lat() && c1.lon() == c2.lon());
+}
+
+QDebug operator<<(QDebug dbg, const Coordinates &coordinates)
+{
+	dbg.nospace() << "Coordinates(" << coordinates.lon() << ", "
+	  << coordinates.lat() << ")";
+
+	return dbg.maybeSpace();
+}
+
+QPair<Coordinates, Coordinates> Coordinates::boundingRect(qreal distance) const
+{
+	qreal radDist = distance / WGS84_RADIUS;
+
+	qreal minLat = deg2rad(_lat) - radDist;
+	qreal maxLat = deg2rad(_lat) + radDist;
+
+	qreal minLon, maxLon;
+	if (minLat > MIN_LAT && maxLat < MAX_LAT) {
+		qreal deltaLon = asin(sin(radDist) / cos(_lat));
+		minLon = deg2rad(_lon) - deltaLon;
+		if (minLon < MIN_LON)
+			minLon += 2.0 * M_PI;
+		maxLon = deg2rad(_lon) + deltaLon;
+		if (maxLon > MAX_LON)
+			maxLon -= 2.0 * M_PI;
+	} else {
+		// a pole is within the distance
+		minLat = qMax(minLat, MIN_LAT);
+		maxLat = qMin(maxLat, MAX_LAT);
+		minLon = MIN_LON;
+		maxLon = MAX_LON;
+	}
+
+	return QPair<Coordinates, Coordinates>(Coordinates(rad2deg(minLon),
+	  rad2deg(minLat)), Coordinates(rad2deg(maxLon), rad2deg(maxLat)));
+}

src/coordinates.h

@@ -0,0 +1,41 @@
+#ifndef COORDINATES_H
+#define COORDINATES_H
+
+#include <cmath>
+#include <QPointF>
+#include <QDebug>
+
+class Coordinates
+{
+public:
+	Coordinates() {_lon = NAN; _lat = NAN;}
+	Coordinates(const Coordinates &c) {_lon = c._lon; _lat = c._lat;}
+	Coordinates(qreal lon, qreal lat) {_lon = lon; _lat = lat;}
+
+	qreal &rlon() {return _lon;}
+	qreal &rlat() {return _lat;}
+	void setLon(qreal lon) {_lon = lon;}
+	void setLat(qreal lat) {_lat = lat;}
+	qreal lon() const {return _lon;}
+	qreal lat() const {return _lat;}
+
+	bool isNull() const
+		{return (std::isnan(_lon) || std::isnan(_lat)) ? true : false;}
+	bool isValid() const
+		{return (_lon >= -180.0 && _lon <= 180.0 && _lat >= -90.0
+		&& _lat <= 90.0) ? true : false;}
+
+	qreal distanceTo(const Coordinates &c) const;
+	QPair<Coordinates, Coordinates> boundingRect(qreal distance) const;
+
+	QPointF toMercator() const;
+	static Coordinates fromMercator(const QPointF &m);
+
+private:
+	qreal _lat, _lon;
+};
+
+bool operator==(const Coordinates &c1, const Coordinates &c2);
+QDebug operator<<(QDebug dbg, const Coordinates &trackpoint);
+
+#endif // COORDINATES_H

src/csvparser.cpp

@@ -0,0 +1,44 @@
+#include "csvparser.h"
+
+bool CSVParser::loadFile(QFile *file)
+{
+	bool res;
+
+	_errorLine = 1;
+	_errorString.clear();
+
+	while (!file->atEnd()) {
+		QByteArray line = file->readLine();
+		QList<QByteArray> list = line.split(',');
+		if (list.size() < 3) {
+			_errorString = "Parse error";
+			return false;
+		}
+
+		qreal lat = list[0].trimmed().toDouble(&res);
+		if (!res || (lat < -90.0 || lat > 90.0)) {
+			_errorString = "Invalid latitude";
+			return false;
+		}
+		qreal lon = list[1].trimmed().toDouble(&res);
+		if (!res || (lon < -180.0 || lon > 180.0)) {
+			_errorString = "Invalid longitude";
+			return false;
+		}
+		Waypoint wp(Coordinates(lon, lat));
+
+		QByteArray ba = list[2].trimmed();
+		QString name = QString::fromUtf8(ba.data(), ba.size());
+		wp.setName(name);
+
+		if (list.size() > 3) {
+			ba = list[3].trimmed();
+			wp.setDescription(QString::fromUtf8(ba.data(), ba.size()));
+		}
+
+		_waypoints.append(wp);
+		_errorLine++;
+	}
+
+	return true;
+}

src/csvparser.h

@@ -0,0 +1,23 @@
+#ifndef CSVPARSER_H
+#define CSVPARSER_H
+
+#include "parser.h"
+
+class CSVParser : public Parser
+{
+public:
+	CSVParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
+	  {_errorLine = 0;}
+	~CSVParser() {}
+
+	bool loadFile(QFile *file);
+	QString errorString() const {return _errorString;}
+	int errorLine() const {return _errorLine;}
+
+private:
+	QString _errorString;
+	int _errorLine;
+};
+
+#endif // CSVPARSER_H

src/data.cpp

@@ -0,0 +1,95 @@
+#include <QFile>
+#include <QFileInfo>
+#include <QLineF>
+#include "gpxparser.h"
+#include "tcxparser.h"
+#include "csvparser.h"
+#include "kmlparser.h"
+#include "fitparser.h"
+#include "igcparser.h"
+#include "nmeaparser.h"
+#include "data.h"
+
+
+Data::Data() : _errorLine(0)
+{
+	_parsers.insert("gpx", new GPXParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("tcx", new TCXParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("kml", new KMLParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("fit", new FITParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("csv", new CSVParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("igc", new IGCParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("nmea", new NMEAParser(_trackData, _routeData,
+	  _waypointData));
+}
+
+Data::~Data()
+{
+	QHash<QString, Parser*>::iterator it;
+
+	for (it = _parsers.begin(); it != _parsers.end(); it++)
+		delete it.value();
+
+	for (int i = 0; i < _tracks.count(); i++)
+		delete _tracks.at(i);
+	for (int i = 0; i < _routes.count(); i++)
+		delete _routes.at(i);
+}
+
+void Data::createData()
+{
+	for (int i = 0; i < _trackData.count(); i++)
+		_tracks.append(new Track(_trackData.at(i)));
+	for (int i = 0; i < _routeData.count(); i++)
+		_routes.append(new Route(_routeData.at(i)));
+}
+
+bool Data::loadFile(const QString &fileName)
+{
+	QFile file(fileName);
+	QFileInfo fi(fileName);
+
+
+	_errorString.clear();
+	_errorLine = 0;
+
+	if (!file.open(QFile::ReadOnly)) {
+		_errorString = qPrintable(file.errorString());
+		return false;
+	}
+
+	QHash<QString, Parser*>::iterator it;
+	if ((it = _parsers.find(fi.suffix().toLower())) != _parsers.end()) {
+		if (it.value()->loadFile(&file)) {
+			createData();
+			return true;
+		}
+
+		_errorLine = it.value()->errorLine();
+		_errorString = it.value()->errorString();
+	} else {
+		for (it = _parsers.begin(); it != _parsers.end(); it++) {
+			if (it.value()->loadFile(&file)) {
+				createData();
+				return true;
+			}
+			file.reset();
+		}
+
+		fprintf(stderr, "Error loading data file: %s:\n", qPrintable(fileName));
+		for (it = _parsers.begin(); it != _parsers.end(); it++)
+			fprintf(stderr, "%s: line %d: %s\n", qPrintable(it.key()),
+			  it.value()->errorLine(), qPrintable(it.value()->errorString()));
+
+		_errorLine = 0;
+		_errorString = "Unknown format";
+	}
+
+	return false;
+}

src/data.h

@@ -0,0 +1,44 @@
+#ifndef DATA_H
+#define DATA_H
+
+#include <QVector>
+#include <QList>
+#include <QHash>
+#include <QPointF>
+#include <QString>
+#include "waypoint.h"
+#include "track.h"
+#include "route.h"
+#include "parser.h"
+
+
+class Data
+{
+public:
+	Data();
+	~Data();
+
+	bool loadFile(const QString &fileName);
+	const QString &errorString() const {return _errorString;}
+	int errorLine() const {return _errorLine;}
+
+	const QList<Track*> &tracks() const {return _tracks;}
+	const QList<Route*> &routes() const {return _routes;}
+	const QList<Waypoint> &waypoints() const {return _waypointData;}
+
+private:
+	void createData();
+
+	QString _errorString;
+	int _errorLine;
+	QHash<QString, Parser*> _parsers;
+
+	QList<Track*> _tracks;
+	QList<Route*> _routes;
+
+	QList<TrackData> _trackData;
+	QList<RouteData> _routeData;
+	QList<Waypoint> _waypointData;
+};
+
+#endif // DATA_H

src/downloader.cpp

@@ -64,9 +64,17 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 		fprintf(stderr, "Error downloading map tile: %s: %s\n",
 		  url.toEncoded().constData(), qPrintable(reply->errorString()));
 	} else {
+		QUrl redirect = reply->attribute(
+		  QNetworkRequest::RedirectionTargetAttribute).toUrl();
 		QString filename = reply->request().attribute(QNetworkRequest::User)
 		  .toString();
-		saveToDisk(filename, reply);
+
+		if (!redirect.isEmpty()) {
+			Download dl(redirect, filename);
+			doDownload(dl);
+		} else
+			if (!saveToDisk(filename, reply))
+				_errorDownloads.insert(url);
 	}
 
 	_currentDownloads.removeAll(reply);

src/downloader.h

@@ -12,13 +12,13 @@
 class Download
 {
 public:
-	Download(const QString &url, const QString &file)
+	Download(const QUrl &url, const QString &file)
 		{_url = url; _file = file;}
-	const QString& url() const {return _url;}
+	const QUrl& url() const {return _url;}
 	const QString& file() const {return _file;}
 
 private:
-	QString _url;
+	QUrl _url;
 	QString _file;
 };
 

src/elevationgraph.cpp

@@ -1,97 +1,140 @@
+#include <cmath>
 #include "config.h"
-#include "gpx.h"
+#include "data.h"
 #include "elevationgraph.h"
 
 
-ElevationGraph::ElevationGraph(QWidget *parent) : GraphView(parent)
+static qreal nMin(qreal a, qreal b)
 {
-	_ascent = 0;
-	_descent = 0;
+	if (!std::isnan(a) && !std::isnan(b))
+		return qMin(a, b);
+	else if (!std::isnan(a))
+		return a;
+	else if (!std::isnan(b))
+		return b;
+	else
+		return NAN;
+}
+
+static qreal nMax(qreal a, qreal b)
+{
+	if (!std::isnan(a) && !std::isnan(b))
+		return qMax(a, b);
+	else if (!std::isnan(a))
+		return a;
+	else if (!std::isnan(b))
+		return b;
+	else
+		return NAN;
+}
+
+ElevationGraph::ElevationGraph(QWidget *parent) : GraphTab(parent)
+{
+	_trackAscent = 0;
+	_routeAscent = 0;
+	_trackDescent = 0;
+	_routeDescent = 0;
+	_trackMin = NAN;
+	_trackMax = NAN;
+	_routeMin = NAN;
+	_routeMax = NAN;
+
+	_showRoutes = true;
+	_showTracks = true;
 
 	_units = Metric;
 
 	setYUnits();
-	setXLabel(tr("Distance"));
 	setYLabel(tr("Elevation"));
 
 	setMinYRange(50.0);
 }
 
-void ElevationGraph::addInfo()
+void ElevationGraph::setInfo()
 {
-	GraphView::addInfo(tr("Ascent"), QString::number(_ascent * yScale(), 'f', 0)
-	  + UNIT_SPACE + yUnits());
-	GraphView::addInfo(tr("Descent"), QString::number(_descent * yScale(), 'f',
-	  0) + UNIT_SPACE + yUnits());
-	GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f', 0)
-	  + UNIT_SPACE + yUnits());
-	GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale(), 'f', 0)
-	  + UNIT_SPACE + yUnits());
+	if (std::isnan(max()) || std::isnan(min()))
+		clearInfo();
+	else {
+		GraphView::addInfo(tr("Ascent"), QString::number(ascent() * yScale(),
+		  'f', 0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Descent"), QString::number(descent() * yScale(),
+		  'f', 0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		  0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale(), 'f',
+		  0) + UNIT_SPACE + yUnits());
+	}
+}
+
+void ElevationGraph::loadGraph(const Graph &graph, Type type, PathItem *path)
+{
+	qreal ascent = 0, descent = 0;
+	qreal min, max;
+
+	if (graph.size() < 2) {
+		skipColor();
+		return;
+	}
+
+	max = min = graph.at(0).y();
+	for (int j = 1; j < graph.size(); j++) {
+		qreal cur = graph.at(j).y();
+		qreal prev = graph.at(j-1).y();
+
+		if (cur > prev)
+			ascent += cur - prev;
+		if (cur < prev)
+			descent += prev - cur;
+
+		if (cur < min)
+			min = cur;
+		if (cur > max)
+			max = cur;
+	}
+
+	if (type == Track) {
+		_trackAscent += ascent;
+		_trackDescent += descent;
+		_trackMax = nMax(_trackMax, max);
+		_trackMin = nMin(_trackMin, min);
+	} else {
+		_routeAscent += ascent;
+		_routeDescent += descent;
+		_routeMax = nMax(_routeMax, max);
+		_routeMin = nMin(_routeMin, min);
+	}
+
+	GraphView::loadGraph(graph, path, type);
+}
+
+void ElevationGraph::loadData(const Data &data, const QList<PathItem *> &paths)
+{
+	int p = 0;
+
+	for (int i = 0; i < data.tracks().count(); i++)
+		loadGraph(data.tracks().at(i)->elevation(), Track, paths.at(p++));
+	for (int i = 0; i < data.routes().count(); i++)
+		loadGraph(data.routes().at(i)->elevation(), Route, paths.at(p++));
+
+	setInfo();
 
 	redraw();
 }
 
-void ElevationGraph::loadGPX(const GPX &gpx)
-{
-	for (int i = 0; i < gpx.trackCount(); i++) {
-		QVector<QPointF> data;
-		qreal ascent = 0, descent = 0;
-
-		gpx.track(i).elevationGraph(data);
-		if (data.count() < 2) {
-			skipColor();
-			continue;
-		}
-
-		for (int j = 1; j < data.size(); j++) {
-			qreal cur = data.at(j).y();
-			qreal prev = data.at(j-1).y();
-
-			if (cur > prev)
-				ascent += cur - prev;
-			if (cur < prev)
-				descent += prev - cur;
-		}
-
-		_ascent += ascent;
-		_descent += descent;
-
-		loadData(data);
-	}
-
-	setXUnits();
-	addInfo();
-}
-
 void ElevationGraph::clear()
 {
-	_ascent = 0;
-	_descent = 0;
+	_trackAscent = 0;
+	_routeAscent = 0;
+	_trackDescent = 0;
+	_routeDescent = 0;
+	_trackMin = NAN;
+	_trackMax = NAN;
+	_routeMin = NAN;
+	_routeMax = NAN;
 
 	GraphView::clear();
 }
 
-void ElevationGraph::setXUnits()
-{
-	if (_units == Metric) {
-		if (bounds().width() < KMINM) {
-			GraphView::setXUnits(tr("m"));
-			setXScale(1);
-		} else {
-			GraphView::setXUnits(tr("km"));
-			setXScale(M2KM);
-		}
-	} else {
-		if (bounds().width() < MIINM) {
-			GraphView::setXUnits(tr("ft"));
-			setXScale(M2FT);
-		} else {
-			GraphView::setXUnits(tr("mi"));
-			setXScale(M2MI);
-		}
-	}
-}
-
 void ElevationGraph::setYUnits()
 {
 	if (_units == Metric) {
@@ -106,9 +149,86 @@ void ElevationGraph::setYUnits()
 void ElevationGraph::setUnits(enum Units units)
 {
 	_units = units;
-	setXUnits();
-	setYUnits();
 
-	clearInfo();
-	addInfo();
+	setYUnits();
+	setInfo();
+	GraphView::setUnits(units);
+
+	redraw();
+}
+
+void ElevationGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	setInfo();
+	showGraph(show, Track);
+
+	redraw();
+}
+
+void ElevationGraph::showRoutes(bool show)
+{
+	_showRoutes = show;
+
+	showGraph(show, Route);
+	setInfo();
+
+	redraw();
+}
+
+qreal ElevationGraph::ascent() const
+{
+	qreal val = 0;
+
+	if (_showRoutes)
+		val += _routeAscent;
+	if (_showTracks)
+		val += _trackAscent;
+
+	return val;
+}
+
+qreal ElevationGraph::descent() const
+{
+	qreal val = 0;
+
+	if (_showRoutes)
+		val += _routeDescent;
+	if (_showTracks)
+		val += _trackDescent;
+
+	return val;
+}
+
+qreal ElevationGraph::max() const
+{
+	qreal val;
+
+	if (_showRoutes && _showTracks)
+		val = nMax(_routeMax, _trackMax);
+	else if (_showTracks)
+		val = _trackMax;
+	else if (_showRoutes)
+		val = _routeMax;
+	else
+		val = NAN;
+
+	return val;
+}
+
+qreal ElevationGraph::min() const
+{
+	qreal val;
+
+	if (_showRoutes && _showTracks)
+		val = nMin(_routeMin, _trackMin);
+	else if (_showTracks)
+		val = _trackMin;
+	else if (_showRoutes)
+		val = _routeMin;
+	else
+		val = NAN;
+
+	return val;
 }

src/elevationgraph.h

@@ -1,34 +1,42 @@
 #ifndef ELEVATIONGRAPH_H
 #define ELEVATIONGRAPH_H
 
-#include "graphview.h"
-#include "units.h"
+#include "graphtab.h"
 
-class GPX;
-
-class ElevationGraph : public GraphView
+class ElevationGraph : public GraphTab
 {
 	Q_OBJECT
 
 public:
 	ElevationGraph(QWidget *parent = 0);
 
-	void loadGPX(const GPX &gpx);
+	QString label() const {return tr("Elevation");}
+	void loadData(const Data &data, const QList<PathItem *> &paths);
 	void clear();
 	void setUnits(enum Units units);
-
-	qreal ascent() const {return _ascent;}
-	qreal descent() const {return _descent;}
-	qreal max() const {return bounds().bottom();}
-	qreal min() const {return bounds().top();}
+	void showTracks(bool show);
+	void showRoutes(bool show);
 
 private:
-	void setXUnits();
-	void setYUnits();
-	void addInfo();
+	enum Type {Track, Route};
+
+	qreal max() const;
+	qreal min() const;
+	qreal ascent() const;
+	qreal descent() const;
+
+	void setYUnits();
+	void setInfo();
+
+	void loadGraph(const Graph &graph, Type type, PathItem *path);
+
+	qreal _trackAscent, _trackDescent;
+	qreal _routeAscent, _routeDescent;
+	qreal _trackMax, _routeMax;
+	qreal _trackMin, _routeMin;
 
-	qreal _ascent, _descent;
 	enum Units _units;
+	bool _showTracks, _showRoutes;
 };
 
 #endif // ELEVATIONGRAPH_H

src/exportdialog.cpp

@@ -11,23 +11,19 @@
 #include <QMessageBox>
 #include <QTabWidget>
 #include <QDoubleSpinBox>
-#include <QLocale>
 #include "fileselectwidget.h"
 #include "units.h"
 #include "exportdialog.h"
 
 
-ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
-  : QDialog(parent), _printer(printer)
+ExportDialog::ExportDialog(Export *exp, QWidget *parent)
+  : QDialog(parent), _export(exp)
 {
 	int index;
 
-	_units = (QLocale::system().measurementSystem()
-	  == QLocale::ImperialSystem) ? QPrinter::Inch : QPrinter::Millimeter;
-
 	_fileSelect = new FileSelectWidget();
 	_fileSelect->setFilter(tr("PDF files (*.pdf);;All files (*)"));
-	_fileSelect->setFile(_printer->outputFileName());
+	_fileSelect->setFile(_export->fileName);
 
 	_paperSize = new QComboBox();
 	_paperSize->addItem("A3", QPrinter::A3);
@@ -36,7 +32,7 @@ ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
 	_paperSize->addItem("Tabloid", QPrinter::Tabloid);
 	_paperSize->addItem("Legal", QPrinter::Legal);
 	_paperSize->addItem("Letter", QPrinter::Letter);
-	if ((index = _paperSize->findData(_printer->paperSize())) >= 0)
+	if ((index = _paperSize->findData(_export->paperSize)) >= 0)
 		_paperSize->setCurrentIndex(index);
 
 	_portrait = new QRadioButton(tr("Portrait"));
@@ -44,32 +40,34 @@ ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
 	QHBoxLayout *orientationLayout = new QHBoxLayout();
 	orientationLayout->addWidget(_portrait);
 	orientationLayout->addWidget(_landscape);
-	if (_printer->orientation() == QPrinter::Portrait)
+	if (_export->orientation == QPrinter::Portrait)
 		_portrait->setChecked(true);
 	else
 		_landscape->setChecked(true);
 
-	qreal top, bottom, left, right;
-
-	_printer->getPageMargins(&left, &top, &right, &bottom, _units);
-	QString us = _units == QPrinter::Inch ? tr("in") : tr("mm");
 	_topMargin = new QDoubleSpinBox();
 	_bottomMargin = new QDoubleSpinBox();
 	_leftMargin = new QDoubleSpinBox();
 	_rightMargin = new QDoubleSpinBox();
-	_topMargin->setValue(top);
+	QString us = (_export->units == Imperial) ? tr("in") : tr("mm");
 	_topMargin->setSuffix(UNIT_SPACE + us);
-	_bottomMargin->setValue(bottom);
 	_bottomMargin->setSuffix(UNIT_SPACE + us);
-	_leftMargin->setValue(left);
 	_leftMargin->setSuffix(UNIT_SPACE + us);
-	_rightMargin->setValue(right);
 	_rightMargin->setSuffix(UNIT_SPACE + us);
-	if (_units == QPrinter::Inch) {
+	if (_export->units == Imperial) {
+		_topMargin->setValue(_export->margins.top() * MM2IN);
+		_bottomMargin->setValue(_export->margins.bottom() * MM2IN);
+		_leftMargin->setValue(_export->margins.left() * MM2IN);
+		_rightMargin->setValue(_export->margins.right() * MM2IN);
 		_topMargin->setSingleStep(0.1);
 		_bottomMargin->setSingleStep(0.1);
 		_leftMargin->setSingleStep(0.1);
 		_rightMargin->setSingleStep(0.1);
+	} else {
+		_topMargin->setValue(_export->margins.top());
+		_bottomMargin->setValue(_export->margins.bottom());
+		_leftMargin->setValue(_export->margins.left());
+		_rightMargin->setValue(_export->margins.right());
 	}
 
 	QGridLayout *marginsLayout = new QGridLayout();
@@ -91,6 +89,7 @@ ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
 	line->setFrameShadow(QFrame::Sunken);
 	pageSetupLayout->addRow(line);
 	pageSetupLayout->addRow(tr("File:"), _fileSelect);
+	pageSetupLayout->setFieldGrowthPolicy(QFormLayout::ExpandingFieldsGrow);
 #else // Q_OS_MAC
 	pageSetupBox->setLayout(pageSetupLayout);
 #endif // Q_OS_MAC
@@ -163,12 +162,16 @@ void ExportDialog::accept()
 	QPrinter::PaperSize paperSize = static_cast<QPrinter::PaperSize>
 	  (_paperSize->itemData(_paperSize->currentIndex()).toInt());
 
-	_printer->setOutputFormat(QPrinter::PdfFormat);
-	_printer->setOutputFileName(_fileSelect->file());
-	_printer->setPaperSize(paperSize);
-	_printer->setOrientation(orientation);
-	_printer->setPageMargins(_leftMargin->value(), _topMargin->value(),
-	  _rightMargin->value(), _bottomMargin->value(), _units);
+	_export->fileName = _fileSelect->file();
+	_export->paperSize = paperSize;
+	_export->orientation = orientation;
+	if (_export->units == Imperial)
+		_export->margins = MarginsF(_leftMargin->value() / MM2IN,
+		_topMargin->value() / MM2IN, _rightMargin->value() / MM2IN,
+		_bottomMargin->value() / MM2IN);
+	else
+		_export->margins = MarginsF(_leftMargin->value(), _topMargin->value(),
+		  _rightMargin->value(), _bottomMargin->value());
 
 	QDialog::accept();
 }

src/exportdialog.h

@@ -3,18 +3,29 @@
 
 #include <QDialog>
 #include <QPrinter>
+#include "margins.h"
+#include "units.h"
 
 class QComboBox;
 class QRadioButton;
 class FileSelectWidget;
 class QDoubleSpinBox;
 
+struct Export {
+	QString fileName;
+	QPrinter::PaperSize paperSize;
+	QPrinter::Orientation orientation;
+	MarginsF margins;
+
+	Units units;
+};
+
 class ExportDialog : public QDialog
 {
 	Q_OBJECT
 
 public:
-	ExportDialog(QPrinter *printer, QWidget *parent = 0);
+	ExportDialog(Export *exp, QWidget *parent = 0);
 
 public slots:
 	void accept();
@@ -22,9 +33,7 @@ public slots:
 private:
 	bool checkFile();
 
-	QPrinter *_printer;
-
-	QPrinter::Unit _units;
+	Export *_export;
 
 	FileSelectWidget *_fileSelect;
 	QComboBox *_paperSize;

src/fileselectwidget.cpp

@@ -1,4 +1,5 @@
 #include <QPushButton>
+#include <QToolButton>
 #include <QFileDialog>
 #include <QHBoxLayout>
 #include <QFileInfo>
@@ -12,7 +13,13 @@ FileSelectWidget::FileSelectWidget(QWidget *parent) : QWidget(parent)
 	QFontMetrics fm(QApplication::font());
 	_edit = new QLineEdit();
 	_edit->setMinimumWidth(fm.boundingRect(QDir::homePath()).width());
-	_button = new QPushButton(tr("Browse..."));
+#ifdef Q_OS_WIN32
+	_button = new QPushButton("...");
+	_button->setMaximumWidth(_button->sizeHint().width() / 2);
+#else // Q_OS_WIN32
+	_button = new QToolButton();
+	_button->setText("...");
+#endif // Q_OS_WIN32
 	connect(_button, SIGNAL(clicked()), this, SLOT(browse()));
 
 	QHBoxLayout *layout = new QHBoxLayout();
@@ -20,6 +27,9 @@ FileSelectWidget::FileSelectWidget(QWidget *parent) : QWidget(parent)
 	layout->addWidget(_edit);
 	layout->addWidget(_button);
 	setLayout(layout);
+
+	QSizePolicy p(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
+	setSizePolicy(p);
 }
 
 void FileSelectWidget::browse()

src/fileselectwidget.h

@@ -5,6 +5,7 @@
 #include <QLineEdit>
 
 class QPushButton;
+class QToolButton;
 
 class FileSelectWidget : public QWidget
 {
@@ -22,7 +23,11 @@ private slots:
 
 private:
 	QLineEdit *_edit;
+#ifdef Q_OS_WIN32
 	QPushButton *_button;
+#else // Q_OS_WIN32
+	QToolButton *_button;
+#endif // Q_OS_WIN32
 
 	QString _filter;
 };

src/fitparser.cpp

@@ -0,0 +1,361 @@
+#include <cstring>
+#include <QtEndian>
+#include "assert.h"
+#include "fitparser.h"
+
+
+const quint32 FIT_MAGIC = 0x5449462E; // .FIT
+
+#define RECORD_MESSAGE  20
+#define TIMESTAMP_FIELD 253
+
+
+FITParser::FITParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
+{
+	memset(_defs, 0, sizeof(_defs));
+
+	_device = 0;
+	_endian = 0;
+	_timestamp = 0;
+	_len = 0;
+}
+
+void FITParser::clearDefinitions()
+{
+	for (int i = 0; i < 16; i++) {
+		if (_defs[i].fields)
+			delete[] _defs[i].fields;
+		if (_defs[i].devFields)
+			delete[] _defs[i].devFields;
+	}
+
+	memset(_defs, 0, sizeof(_defs));
+}
+
+void FITParser::warning(const char *text) const
+{
+	const QFile *file = static_cast<QFile *>(_device);
+	fprintf(stderr, "%s:%d: %s\n", qPrintable(file->fileName()),
+	  _len, text);
+}
+
+bool FITParser::readData(char *data, size_t size)
+{
+	qint64 n;
+
+	n = _device->read(data, size);
+	if (n < 0) {
+		_errorString = "I/O error";
+		return false;
+	} else if ((size_t)n < size) {
+		_errorString = "Premature end of data";
+		return false;
+	}
+
+	return true;
+}
+
+template<class T> bool FITParser::readValue(T &val)
+{
+	T data;
+
+	if (!readData((char*)&data, sizeof(T)))
+		return false;
+
+	_len -= sizeof(T);
+
+	if (sizeof(T) > 1) {
+		if (_endian)
+			val = qFromBigEndian(data);
+		else
+			val = qFromLittleEndian(data);
+	} else
+		val = data;
+
+	return true;
+}
+
+bool FITParser::skipValue(size_t size)
+{
+	size_t i;
+	quint8 val;
+
+	for (i = 0; i < size; i++)
+		if (!readValue(val))
+			return false;
+
+	return true;
+}
+
+bool FITParser::parseDefinitionMessage(quint8 header)
+{
+	int local_id = header & 0x0f;
+	MessageDefinition* def = &_defs[local_id];
+	quint8 i;
+
+
+	if (def->fields) {
+		delete[] def->fields;
+		def->fields = 0;
+	}
+	if (def->devFields) {
+		delete[] def->devFields;
+		def->devFields = 0;
+	}
+
+	// reserved/unused
+	if (!readValue(i))
+		return false;
+
+	// endianness
+	if (!readValue(def->endian))
+		return false;
+	if (def->endian > 1) {
+		_errorString = "Bad endian field";
+		return false;
+	}
+	_endian = def->endian;
+
+	// global message number
+	if (!readValue(def->globalId))
+		return false;
+
+	// number of records
+	if (!readValue(def->numFields))
+		return false;
+
+	// definition records
+	def->fields = new Field[def->numFields];
+	for (i = 0; i < def->numFields; i++) {
+		STATIC_ASSERT(sizeof(def->fields[i]) == 3);
+		if (!readData((char*)&(def->fields[i]), sizeof(def->fields[i])))
+			return false;
+		_len -= sizeof(def->fields[i]);
+	}
+
+	// developer definition records
+	if (header & 0x20) {
+		if (!readValue(def->numDevFields))
+			return false;
+
+		def->devFields = new Field[def->numDevFields];
+		for (i = 0; i < def->numDevFields; i++) {
+			STATIC_ASSERT(sizeof(def->devFields[i]) == 3);
+			if (!readData((char*)&(def->devFields[i]),
+			  sizeof(def->devFields[i])))
+				return false;
+			_len -= sizeof(def->devFields[i]);
+		}
+	}
+
+	return true;
+}
+
+bool FITParser::readField(Field *f, quint32 &val)
+{
+	quint8 v8 = (quint8)-1;
+	quint16 v16 = (quint16)-1;
+	bool ret;
+
+	val = (quint32)-1;
+
+	switch (f->type) {
+		case 1: // sint8
+		case 2: // uint8
+			if (f->size == 1) {
+				ret = readValue(v8);
+				val = v8;
+			} else
+				ret = skipValue(f->size);
+			break;
+		case 0x83: // sint16
+		case 0x84: // uint16
+			if (f->size == 2) {
+				ret = readValue(v16);
+				val = v16;
+			} else
+				ret = skipValue(f->size);
+			break;
+		case 0x85: // sint32
+		case 0x86: // uint32
+			if (f->size == 4)
+				ret = readValue(val);
+			else
+				ret = skipValue(f->size);
+			break;
+		default:
+			ret = skipValue(f->size);
+			break;
+	}
+
+	return ret;
+}
+
+bool FITParser::parseData(MessageDefinition *def, quint8 offset)
+{
+	Field *field;
+	quint32 timestamp = _timestamp + offset;
+	quint32 val;
+	Trackpoint trackpoint;
+	int i;
+
+
+	if (!def->fields && !def->devFields) {
+		_errorString = "Undefined data message";
+		return false;
+	}
+
+	_endian = def->endian;
+
+	for (i = 0; i < def->numFields; i++) {
+		field = &def->fields[i];
+		if (!readField(field, val))
+			return false;
+
+		if (field->id == TIMESTAMP_FIELD)
+			_timestamp = timestamp = val;
+		else if (def->globalId == RECORD_MESSAGE) {
+			switch (field->id) {
+				case 0:
+					if (val != 0x7fffffff)
+						trackpoint.rcoordinates().setLat(
+						  ((qint32)val / (double)0x7fffffff) * 180);
+					break;
+				case 1:
+					if (val != 0x7fffffff)
+						trackpoint.rcoordinates().setLon(
+						  ((qint32)val / (double)0x7fffffff) * 180);
+					break;
+				case 2:
+					if (val != 0xffff)
+						trackpoint.setElevation((val / 5.0) - 500);
+					break;
+				case 3:
+					if (val != 0xff)
+						trackpoint.setHeartRate(val);
+					break;
+				case 4:
+					if (val != 0xff)
+						trackpoint.setCadence(val);
+					break;
+				case 6:
+					if (val != 0xffff)
+						trackpoint.setSpeed(val / 1000.0f);
+					break;
+				case 7:
+					if (val != 0xffff)
+						trackpoint.setPower(val);
+					break;
+				case 13:
+					if (val != 0x7f)
+						trackpoint.setTemperature((qint8)val);
+					break;
+				default:
+					break;
+
+			}
+		}
+	}
+
+	for (i = 0; i < def->numDevFields; i++) {
+		field = &def->devFields[i];
+		if (!readField(field, val))
+			return false;
+	}
+
+
+	if (def->globalId == RECORD_MESSAGE) {
+		if (trackpoint.coordinates().isValid()) {
+			trackpoint.setTimestamp(QDateTime::fromTime_t(timestamp
+			  + 631065600));
+			_tracks.last().append(trackpoint);
+		} else {
+			if (trackpoint.coordinates().isNull())
+				warning("Missing coordinates");
+			else {
+				_errorString = "Invalid coordinates";
+				return false;
+			}
+		}
+	}
+
+	return true;
+}
+
+bool FITParser::parseDataMessage(quint8 header)
+{
+	int local_id = header & 0xf;
+	MessageDefinition* def = &_defs[local_id];
+	return parseData(def, 0);
+}
+
+bool FITParser::parseCompressedMessage(quint8 header)
+{
+	int local_id = (header >> 5) & 3;
+	MessageDefinition* def = &_defs[local_id];
+	return parseData(def, header & 0x1f);
+}
+
+bool FITParser::parseRecord()
+{
+	quint8 header;
+
+	if (!readValue(header))
+		return false;
+
+	if (header & 0x80)
+		return parseCompressedMessage(header);
+	else if (header & 0x40)
+		return parseDefinitionMessage(header);
+	else
+		return parseDataMessage(header);
+}
+
+bool FITParser::parseHeader()
+{
+	FileHeader hdr;
+	quint16 crc;
+	qint64 len;
+
+	STATIC_ASSERT(sizeof(hdr) == 12);
+	len = _device->read((char*)&hdr, sizeof(hdr));
+	if (len < 0) {
+		_errorString = "I/O error";
+		return false;
+	} else if ((size_t)len < sizeof(hdr)
+	  || hdr.magic != qToLittleEndian(FIT_MAGIC)) {
+		_errorString = "Not a FIT file";
+		return false;
+	}
+
+	_len = qFromLittleEndian(hdr.dataSize);
+
+	if (hdr.headerSize > sizeof(hdr))
+		if (!readData((char *)&crc, sizeof(crc)))
+			return false;
+
+	return true;
+}
+
+bool FITParser::loadFile(QFile *file)
+{
+	bool ret = true;
+
+	_device = file;
+	_endian = 0;
+	_timestamp = 0;
+
+	if (!parseHeader())
+		return false;
+
+	_tracks.append(TrackData());
+
+	while (_len)
+		if ((ret = parseRecord()) == false)
+			break;
+
+	clearDefinitions();
+
+	return ret;
+}

src/fitparser.h

@@ -0,0 +1,66 @@
+#ifndef FITPARSER_H
+#define FITPARSER_H
+
+#include "parser.h"
+
+class FITParser : public Parser
+{
+public:
+	FITParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints);
+	~FITParser() {}
+
+	bool loadFile(QFile *file);
+	QString errorString() const {return _errorString;}
+	int errorLine() const {return 0;}
+
+private:
+	typedef struct {
+		quint8 headerSize;
+		quint8 protocolVersion;
+		quint16 profileVersion;
+		quint32 dataSize;
+		quint32 magic;
+	} FileHeader;
+
+	typedef struct {
+		quint8 id;
+		quint8 size;
+		quint8 type;
+	} Field;
+
+	typedef struct {
+		quint8 endian;
+		quint16 globalId;
+		quint8 numFields;
+		Field *fields;
+		quint8 numDevFields;
+		Field *devFields;
+	} MessageDefinition;
+
+
+	void warning(const char *text) const;
+	void clearDefinitions();
+
+	bool readData(char *data, size_t size);
+	template<class T> bool readValue(T &val);
+	bool skipValue(size_t size);
+
+	bool parseHeader();
+	bool parseRecord();
+	bool parseDefinitionMessage(quint8 header);
+	bool parseCompressedMessage(quint8 header);
+	bool parseDataMessage(quint8 header);
+	bool parseData(MessageDefinition *def, quint8 offset);
+	bool readField(Field *f, quint32 &val);
+
+	QIODevice *_device;
+	QString _errorString;
+
+	quint32 _len;
+	quint8 _endian;
+	quint32 _timestamp;
+	MessageDefinition _defs[16];
+};
+
+#endif // FITPARSER_H

src/format.cpp

@@ -0,0 +1,53 @@
+#include <QApplication>
+#include "coordinates.h"
+#include "format.h"
+
+QString Format::timeSpan(qreal time)
+{
+	unsigned h, m, s;
+
+	h = time / 3600;
+	m = (time - (h * 3600)) / 60;
+	s = time - (h * 3600) - (m * 60);
+
+	return QString("%1:%2:%3").arg(h).arg(m, 2, 10, QChar('0'))
+	  .arg(s, 2, 10, QChar('0'));
+}
+
+QString Format::distance(qreal value, Units units)
+{
+	if (units == Imperial) {
+		if (value < MIINM)
+			return QString::number(value * M2FT, 'f', 0) + UNIT_SPACE
+			  + qApp->translate("Format", "ft");
+		else
+			return QString::number(value * M2MI, 'f', 1) + UNIT_SPACE
+			  + qApp->translate("Format", "mi");
+	} else {
+		if (value < KMINM)
+			return QString::number(value, 'f', 0) + UNIT_SPACE
+			  + qApp->translate("Format", "m");
+		else
+			return QString::number(value * M2KM, 'f', 1) + UNIT_SPACE
+			  + qApp->translate("Format", "km");
+	}
+}
+
+QString Format::elevation(qreal value, Units units)
+{
+	if (units == Metric)
+		return QString::number(value, 'f', 0) + UNIT_SPACE
+		  + qApp->translate("Format", "m");
+	else
+		return QString::number(value * M2FT, 'f', 0) + UNIT_SPACE
+		  + qApp->translate("Format", "ft");
+}
+
+QString Format::coordinates(const Coordinates &value)
+{
+	QChar yH = (value.lat() < 0) ? 'S' : 'N';
+	QChar xH = (value.lon() < 0) ? 'W' : 'E';
+
+	return QString::number(qAbs(value.lat()), 'f', 5) + yH + "," + QChar(0x00A0)
+	  + QString::number(qAbs(value.lon()), 'f', 5) + xH;
+}

src/format.h

@@ -0,0 +1,17 @@
+#ifndef FORMAT_H
+#define FORMAT_H
+
+#include <QString>
+#include "units.h"
+
+class Coordinates;
+
+namespace Format
+{
+	QString timeSpan(qreal time);
+	QString distance(qreal value, Units units);
+	QString elevation(qreal value, Units units);
+	QString coordinates(const Coordinates &value);
+}
+
+#endif // FORMAT_H

src/gpx.cpp

@@ -1,28 +0,0 @@
-#include <QFile>
-#include <QLineF>
-#include "ll.h"
-#include "gpx.h"
-
-
-bool GPX::loadFile(const QString &fileName)
-{
-	QFile file(fileName);
-	bool ret;
-
-	_tracks.clear();
-	_error.clear();
-	_errorLine = 0;
-
-	if (!file.open(QFile::ReadOnly | QFile::Text)) {
-		_error = qPrintable(file.errorString());
-		return false;
-	}
-
-	if (!(ret = _parser.loadFile(&file))) {
-		_error = _parser.errorString();
-		_errorLine = _parser.errorLine();
-	}
-	file.close();
-
-	return ret;
-}

src/gpx.h

@@ -1,33 +0,0 @@
-#ifndef GPX_H
-#define GPX_H
-
-#include <QVector>
-#include <QList>
-#include <QPointF>
-#include <QString>
-#include "waypoint.h"
-#include "track.h"
-#include "parser.h"
-
-class GPX
-{
-public:
-	GPX() : _parser(_tracks, _waypoints), _errorLine(0) {}
-	bool loadFile(const QString &fileName);
-	const QString &errorString() const {return _error;}
-	int errorLine() const {return _errorLine;}
-
-	int trackCount() const {return _tracks.count();}
-	Track track(int i) const {return Track(_tracks.at(i));}
-	const QList<Waypoint> &waypoints() const {return _waypoints;}
-
-private:
-	Parser _parser;
-	QString _error;
-	int _errorLine;
-
-	QList<QVector<Trackpoint> > _tracks;
-	QList<Waypoint> _waypoints;
-};
-
-#endif // GPX_H

src/gpxparser.cpp

@@ -0,0 +1,205 @@
+#include "gpxparser.h"
+
+
+qreal GPXParser::number()
+{
+	bool res;
+	qreal ret = _reader.readElementText().toDouble(&res);
+	if (!res)
+		_reader.raiseError(QString("Invalid %1").arg(
+		  _reader.name().toString()));
+
+	return ret;
+}
+
+QDateTime GPXParser::time()
+{
+	QDateTime d = QDateTime::fromString(_reader.readElementText(),
+	  Qt::ISODate);
+	if (!d.isValid())
+		_reader.raiseError(QString("Invalid %1").arg(
+		  _reader.name().toString()));
+
+	return d;
+}
+
+Coordinates GPXParser::coordinates()
+{
+	bool res;
+	qreal lon, lat;
+	const QXmlStreamAttributes &attr = _reader.attributes();
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+	lon = attr.value("lon").toString().toDouble(&res);
+#else // QT_VERSION < 5
+	lon = attr.value("lon").toDouble(&res);
+#endif // QT_VERSION < 5
+	if (!res || (lon < -180.0 || lon > 180.0)) {
+		_reader.raiseError("Invalid longitude");
+		return Coordinates();
+	}
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+	lat = attr.value("lat").toString().toDouble(&res);
+#else // QT_VERSION < 5
+	lat = attr.value("lat").toDouble(&res);
+#endif // QT_VERSION < 5
+	if (!res || (lat < -90.0 || lat > 90.0)) {
+		_reader.raiseError("Invalid latitude");
+		return Coordinates();
+	}
+
+	return Coordinates(lon, lat);
+}
+
+void GPXParser::tpExtension(Trackpoint &trackpoint)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "hr")
+			trackpoint.setHeartRate(number());
+		else if (_reader.name() == "atemp")
+			trackpoint.setTemperature(number());
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void GPXParser::extensions(Trackpoint &trackpoint)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "speed")
+			trackpoint.setSpeed(number());
+		else if (_reader.name() == "hr" || _reader.name() == "heartrate")
+			trackpoint.setHeartRate(number());
+		else if (_reader.name() == "temp")
+			trackpoint.setTemperature(number());
+		else if (_reader.name() == "cadence")
+			trackpoint.setCadence(number());
+		else if (_reader.name() == "power")
+			trackpoint.setPower(number());
+		else if (_reader.name() == "TrackPointExtension")
+			tpExtension(trackpoint);
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void GPXParser::trackpointData(Trackpoint &trackpoint)
+{
+	qreal gh = NAN;
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "ele")
+			trackpoint.setElevation(number());
+		else if (_reader.name() == "time")
+			trackpoint.setTimestamp(time());
+		else if (_reader.name() == "geoidheight")
+			gh = number();
+		else if (_reader.name() == "extensions")
+			extensions(trackpoint);
+		else
+			_reader.skipCurrentElement();
+	}
+
+	if (!std::isnan(gh) && !std::isnan(trackpoint.elevation()))
+		trackpoint.setElevation(trackpoint.elevation() - gh);
+}
+
+void GPXParser::waypointData(Waypoint &waypoint)
+{
+	qreal gh = NAN;
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "name")
+			waypoint.setName(_reader.readElementText());
+		else if (_reader.name() == "desc")
+			waypoint.setDescription(_reader.readElementText());
+		else if (_reader.name() == "ele")
+			waypoint.setElevation(number());
+		else if (_reader.name() == "geoidheight")
+			gh = number();
+		else if (_reader.name() == "time")
+			waypoint.setTimestamp(time());
+		else
+			_reader.skipCurrentElement();
+	}
+
+	if (!std::isnan(gh) && !std::isnan(waypoint.elevation()))
+		waypoint.setElevation(waypoint.elevation() - gh);
+}
+
+void GPXParser::trackpoints(TrackData &track)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "trkpt") {
+			track.append(Trackpoint(coordinates()));
+			trackpointData(track.last());
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+void GPXParser::routepoints(RouteData &route)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "rtept") {
+			route.append(Waypoint(coordinates()));
+			waypointData(route.last());
+		} else if (_reader.name() == "name")
+			route.setName(_reader.readElementText());
+		else if (_reader.name() == "desc")
+			route.setDescription(_reader.readElementText());
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void GPXParser::track(TrackData &track)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "trkseg")
+			trackpoints(track);
+		else if (_reader.name() == "name")
+			track.setName(_reader.readElementText());
+		else if (_reader.name() == "desc")
+			track.setDescription(_reader.readElementText());
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void GPXParser::gpx()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "trk") {
+			_tracks.append(TrackData());
+			track(_tracks.back());
+		} else if (_reader.name() == "rte") {
+			_routes.append(RouteData());
+			routepoints(_routes.back());
+		} else if (_reader.name() == "wpt") {
+			_waypoints.append(Waypoint(coordinates()));
+			waypointData(_waypoints.last());
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+bool GPXParser::parse()
+{
+	if (_reader.readNextStartElement()) {
+		if (_reader.name() == "gpx")
+			gpx();
+		else
+			_reader.raiseError("Not a GPX file");
+	}
+
+	return !_reader.error();
+}
+
+bool GPXParser::loadFile(QFile *file)
+{
+	_reader.clear();
+	_reader.setDevice(file);
+
+	return parse();
+}

src/gpxparser.h

@@ -0,0 +1,36 @@
+#ifndef GPXPARSER_H
+#define GPXPARSER_H
+
+#include <QXmlStreamReader>
+#include "parser.h"
+
+
+class GPXParser : public Parser
+{
+public:
+	GPXParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints) {}
+	~GPXParser() {}
+
+	bool loadFile(QFile *file);
+	QString errorString() const {return _reader.errorString();}
+	int errorLine() const {return _reader.lineNumber();}
+
+private:
+	bool parse();
+	void gpx();
+	void track(TrackData &track);
+	void trackpoints(TrackData &track);
+	void routepoints(RouteData &route);
+	void tpExtension(Trackpoint &trackpoint);
+	void extensions(Trackpoint &trackpoint);
+	void trackpointData(Trackpoint &trackpoint);
+	void waypointData(Waypoint &waypoint);
+	qreal number();
+	QDateTime time();
+	Coordinates coordinates();
+
+	QXmlStreamReader _reader;
+};
+
+#endif // GPXPARSER_H

src/graph.cpp

@@ -0,0 +1,9 @@
+#include "graph.h"
+
+QDebug operator<<(QDebug dbg, const GraphPoint &point)
+{
+	dbg.nospace() << "GraphPoint(" << point.s() << ", " << point.t() << ", "
+	  << point.y() << ")";
+
+	return dbg.maybeSpace();
+}

src/graph.h

@@ -0,0 +1,52 @@
+#ifndef GRAPH_H
+#define GRAPH_H
+
+#include <QVector>
+#include <QDebug>
+#include <cmath>
+
+enum GraphType {Distance, Time};
+
+class GraphPoint
+{
+public:
+	GraphPoint(qreal s = NAN, qreal t = NAN, qreal y = NAN)
+	  : _s(s), _t(t), _y(y) {}
+
+	qreal s() const {return _s;}
+	qreal t() const {return _t;}
+	qreal y() const {return _y;}
+	qreal x(GraphType type) const {return (type == Distance) ? _s : _t;}
+
+	void setS(qreal s) {_s = s;}
+	void setT(qreal t) {_t = t;}
+	void setY(qreal y) {_y = y;}
+
+private:
+	qreal _s;
+	qreal _t;
+	qreal _y;
+};
+
+Q_DECLARE_TYPEINFO(GraphPoint, Q_PRIMITIVE_TYPE);
+QDebug operator<<(QDebug dbg, const GraphPoint &point);
+
+
+class Graph : public QVector<GraphPoint>
+{
+public:
+	Graph() : QVector<GraphPoint>() {_time = true;}
+	void append(const GraphPoint &p)
+	{
+		if (std::isnan(p.t()))
+			_time = false;
+		QVector<GraphPoint>::append(p);
+	}
+
+	bool hasTime() const {return _time;}
+
+private:
+	bool _time;
+};
+
+#endif // GRAPH_H

src/graphitem.cpp

@@ -0,0 +1,193 @@
+#include <QPainter>
+#include "graphitem.h"
+
+
+GraphItem::GraphItem(const Graph &graph, QGraphicsItem *parent)
+  : QGraphicsObject(parent)
+{
+	_id = 0;
+	_width = 1;
+
+	_pen = QPen(Qt::black, _width);
+
+	_type = Distance;
+	_graph = graph;
+	_sx = 1.0; _sy = 1.0;
+
+	setZValue(1.0);
+
+	updatePath();
+	updateBounds();
+}
+
+void GraphItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+
+	painter->setPen(_pen);
+	painter->drawPath(_path);
+
+/*
+	QPen p = QPen(QBrush(Qt::red), 0);
+	painter->setPen(p);
+	painter->drawRect(boundingRect());
+*/
+}
+
+void GraphItem::setGraphType(GraphType type)
+{
+	prepareGeometryChange();
+
+	_type = type;
+	updatePath();
+	updateBounds();
+}
+
+void GraphItem::setColor(const QColor &color)
+{
+	_pen.setColor(color);
+	update();
+}
+
+void GraphItem::setWidth(int width)
+{
+	prepareGeometryChange();
+
+	_width = width;
+	_pen.setWidth(width);
+}
+
+qreal GraphItem::yAtX(qreal x)
+{
+	int low = 0;
+	int high = _graph.count() - 1;
+	int mid = 0;
+
+	Q_ASSERT(high > low);
+	Q_ASSERT(x >= _graph.at(low).x(_type) && x <= _graph.at(high).x(_type));
+
+	while (low <= high) {
+		mid = low + ((high - low) / 2);
+		const GraphPoint &p = _graph.at(mid);
+		if (p.x(_type) > x)
+			high = mid - 1;
+		else if (p.x(_type) < x)
+			low = mid + 1;
+		else
+			return -p.y();
+	}
+
+	QLineF l;
+	if (_graph.at(mid).x(_type) < x)
+		l = QLineF(_graph.at(mid).x(_type), _graph.at(mid).y(),
+		  _graph.at(mid+1).x(_type), _graph.at(mid+1).y());
+	else
+		l = QLineF(_graph.at(mid-1).x(_type), _graph.at(mid-1).y(),
+		  _graph.at(mid).x(_type), _graph.at(mid).y());
+
+	return -l.pointAt((x - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
+}
+
+qreal GraphItem::distanceAtTime(qreal time)
+{
+	int low = 0;
+	int high = _graph.count() - 1;
+	int mid = 0;
+
+	Q_ASSERT(high > low);
+	Q_ASSERT(time >= _graph.at(low).t() && time <= _graph.at(high).t());
+
+	while (low <= high) {
+		mid = low + ((high - low) / 2);
+		const GraphPoint &p = _graph.at(mid);
+		if (p.t() > time)
+			high = mid - 1;
+		else if (p.t() < time)
+			low = mid + 1;
+		else
+			return _graph.at(mid).s();
+	}
+
+	QLineF l;
+	if (_graph.at(mid).t() < time)
+		l = QLineF(_graph.at(mid).t(), _graph.at(mid).s(), _graph.at(mid+1).t(),
+		  _graph.at(mid+1).s());
+	else
+		l = QLineF(_graph.at(mid-1).t(), _graph.at(mid-1).s(),
+		  _graph.at(mid).t(), _graph.at(mid).s());
+
+	return l.pointAt((time - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
+}
+
+void GraphItem::emitSliderPositionChanged(qreal pos)
+{
+	if (_type == Time) {
+		if (_graph.hasTime()) {
+			if (pos >= _graph.first().t() && pos <= _graph.last().t())
+				emit sliderPositionChanged(distanceAtTime(pos));
+			else
+				emit sliderPositionChanged(NAN);
+		} else
+			emit sliderPositionChanged(NAN);
+	} else
+		emit sliderPositionChanged(pos);
+}
+
+void GraphItem::selected(bool selected)
+{
+	if (selected) {
+		_pen.setWidth(_width + 1);
+		setZValue(zValue() + 1.0);
+	} else {
+		_pen.setWidth(_width);
+		setZValue(zValue() - 1.0);
+	}
+
+	update();
+}
+
+void GraphItem::setScale(qreal sx, qreal sy)
+{
+	if (_sx == sx && _sy == sy)
+		return;
+
+	prepareGeometryChange();
+
+	_sx = sx; _sy = sy;
+	updatePath();
+}
+
+void GraphItem::updatePath()
+{
+	_path = QPainterPath();
+
+	if (_type == Time && !_graph.hasTime())
+		return;
+
+	_path.moveTo(_graph.first().x(_type) * _sx, -_graph.first().y() * _sy);
+	for (int i = 1; i < _graph.size(); i++)
+		_path.lineTo(_graph.at(i).x(_type) * _sx, -_graph.at(i).y() * _sy);
+}
+
+void GraphItem::updateBounds()
+{
+	if (_type == Time && !_graph.hasTime()) {
+		_bounds = QRectF();
+		return;
+	}
+
+	qreal bottom, top, left, right;
+
+	QPointF p = QPointF(_graph.first().x(_type), -_graph.first().y());
+	bottom = p.y(); top = p.y(); left = p.x(); right = p.x();
+
+	for (int i = 1; i < _graph.size(); i++) {
+		p = QPointF(_graph.at(i).x(_type), -_graph.at(i).y());
+		bottom = qMax(bottom, p.y()); top = qMin(top, p.y());
+		right = qMax(right, p.x()); left = qMin(left, p.x());
+	}
+
+	_bounds = QRectF(QPointF(left, top), QPointF(right, bottom));
+}

src/graphitem.h

@@ -0,0 +1,55 @@
+#ifndef GRAPHITEM_H
+#define GRAPHITEM_H
+
+#include <QGraphicsObject>
+#include <QPen>
+#include "graph.h"
+
+class GraphItem : public QGraphicsObject
+{
+	Q_OBJECT
+
+public:
+	GraphItem(const Graph &graph, QGraphicsItem *parent = 0);
+
+	QRectF boundingRect() const
+	  {return _path.boundingRect();}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	const QRectF &bounds() const {return _bounds;}
+	void setScale(qreal sx, qreal sy);
+
+	void setGraphType(GraphType type);
+	int id() const {return _id;}
+	void setId(int id) {_id = id;}
+	void setColor(const QColor &color);
+	void setWidth(int width);
+
+	qreal yAtX(qreal x);
+	qreal distanceAtTime(qreal time);
+
+signals:
+	void sliderPositionChanged(qreal);
+
+public slots:
+	void emitSliderPositionChanged(qreal);
+	void selected(bool selected);
+
+private:
+	void updatePath();
+	void updateBounds();
+
+	int _id;
+	QPen _pen;
+	int _width;
+
+	Graph _graph;
+	GraphType _type;
+
+	QPainterPath _path;
+	QRectF _bounds;
+	qreal _sx, _sy;
+};
+
+#endif // GRAPHITEM_H

src/graphtab.h

@@ -0,0 +1,27 @@
+#ifndef GRAPHTAB_H
+#define GRAPHTAB_H
+
+#include <QList>
+#include "graphview.h"
+#include "units.h"
+
+class Data;
+class PathItem;
+
+class GraphTab : public GraphView
+{
+	Q_OBJECT
+
+public:
+	GraphTab(QWidget *parent = 0) : GraphView(parent)
+	  {setFrameShape(QFrame::NoFrame);}
+
+	virtual QString label() const = 0;
+	virtual void loadData(const Data &data, const QList<PathItem *> &paths) = 0;
+	virtual void clear() = 0;
+	virtual void setUnits(enum Units units) = 0;
+	virtual void showTracks(bool show) = 0;
+	virtual void showRoutes(bool show) = 0;
+};
+
+#endif // GRAPHTAB_H

src/graphview.cpp

@@ -1,59 +1,67 @@
-#include <QGraphicsView>
-#include <QGraphicsSceneMouseEvent>
+#include <QGraphicsScene>
 #include <QEvent>
+#include <QMouseEvent>
 #include <QPaintEngine>
 #include <QPaintDevice>
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+#include <QGLWidget>
+#else // QT 5
+#include <QOpenGLWidget>
+#endif // QT 5
+#include <QSysInfo>
 #include "config.h"
 #include "axisitem.h"
 #include "slideritem.h"
 #include "sliderinfoitem.h"
 #include "infoitem.h"
+#include "griditem.h"
+#include "graph.h"
+#include "graphitem.h"
+#include "pathitem.h"
 #include "graphview.h"
 
 
 #define MARGIN 10.0
 
-void Scene::mousePressEvent(QGraphicsSceneMouseEvent *e)
-{
-	if (e->button() == Qt::LeftButton)
-		emit mouseClicked(e->scenePos());
-
-	QGraphicsScene::mousePressEvent(e);
-}
-
-
 GraphView::GraphView(QWidget *parent)
 	: QGraphicsView(parent)
 {
-	_scene = new Scene(this);
+	_scene = new QGraphicsScene();
 	setScene(_scene);
 
+	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+	setRenderHint(QPainter::Antialiasing, true);
 	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 
 	_xAxis = new AxisItem(AxisItem::X);
+	_xAxis->setZValue(2.0);
 	_yAxis = new AxisItem(AxisItem::Y);
-
+	_yAxis->setZValue(2.0);
 	_slider = new SliderItem();
-	_slider->setZValue(2.0);
+	_slider->setZValue(3.0);
+	_sliderInfo = new SliderInfoItem(_slider);
+	_sliderInfo->setZValue(3.0);
+	_info = new InfoItem();
+	_grid = new GridItem();
 
 	connect(_slider, SIGNAL(positionChanged(const QPointF&)), this,
 	  SLOT(emitSliderPositionChanged(const QPointF&)));
-	connect(_scene, SIGNAL(mouseClicked(const QPointF&)), this,
-	  SLOT(newSliderPosition(const QPointF&)));
 
-	_info = new InfoItem();
-
-	_sliderInfo = new SliderInfoItem(_slider);
-	_sliderInfo->setZValue(2.0);
+	_width = 1;
 
 	_xScale = 1;
 	_yScale = 1;
+	_yOffset = 0;
 
 	_precision = 0;
 	_minYRange = 0.01;
 
 	_sliderPos = 0;
+
+	_units = Metric;
+	_graphType = Distance;
+	_xLabel = tr("Distance");
 }
 
 GraphView::~GraphView()
@@ -62,24 +70,16 @@ GraphView::~GraphView()
 		delete _xAxis;
 	if (_yAxis->scene() != _scene)
 		delete _yAxis;
-
 	if (_slider->scene() != _scene)
 		delete _slider;
-
 	if (_info->scene() != _scene)
 		delete _info;
-}
+	if (_grid->scene() != _scene)
+		delete _grid;
 
-void GraphView::updateBounds(const QPointF &point)
-{
-	if (point.x() < _bounds.left())
-		_bounds.setLeft(point.x());
-	if (point.x() > _bounds.right())
-		_bounds.setRight(point.x());
-	if (point.y() > _bounds.bottom())
-		_bounds.setBottom(point.y());
-	if (point.y() < _bounds.top())
-		_bounds.setTop(point.y());
+	for (int i = 0; i < _graphs.count(); i++)
+		if (_graphs.at(i)->scene() != _scene)
+			delete _graphs[i];
 }
 
 void GraphView::createXLabel()
@@ -92,72 +92,155 @@ void GraphView::createYLabel()
 	_yAxis->setLabel(QString("%1 [%2]").arg(_yLabel).arg(_yUnits));
 }
 
-void GraphView::setXLabel(const QString &label)
-{
-	_xLabel = label;
-	createXLabel();
-}
-
 void GraphView::setYLabel(const QString &label)
 {
 	_yLabel = label;
 	createYLabel();
 }
 
-void GraphView::setXUnits(const QString &units)
-{
-	_xUnits = units;
-	createXLabel();
-}
-
 void GraphView::setYUnits(const QString &units)
 {
 	_yUnits = units;
 	createYLabel();
 }
 
-void GraphView::setXScale(qreal scale)
+void GraphView::setXUnits()
 {
-	_xScale = scale;
-}
-
-void GraphView::setYScale(qreal scale)
-{
-	_yScale = scale;
-}
-
-void GraphView::loadData(const QVector<QPointF> &data)
-{
-	QPainterPath path;
-	QGraphicsPathItem *pi;
-
-
-	if (data.size() < 2)
-		return;
-
-	if (!_graphs.size())
-		_bounds.moveTo(data.at(0));
-
-	updateBounds(data.at(0));
-	path.moveTo(data.at(0).x(), -data.at(0).y());
-	for (int i = 1; i < data.size(); i++) {
-		const QPointF &p = data.at(i);
-		path.lineTo(p.x(), -p.y());
-		updateBounds(p);
+	if (_graphType == Distance) {
+		if (_units == Metric) {
+			if (bounds().width() < KMINM) {
+				_xUnits = tr("m");
+				_xScale = 1;
+			} else {
+				_xUnits = tr("km");
+				_xScale = M2KM;
+			}
+		} else {
+			if (bounds().width() < MIINM) {
+				_xUnits = tr("ft");
+				_xScale = M2FT;
+			} else {
+				_xUnits = tr("mi");
+				_xScale = M2MI;
+			}
+		}
+	} else {
+		    if (bounds().width() < MININS) {
+				_xUnits = tr("s");
+				_xScale = 1;
+			} else if (bounds().width() < HINS) {
+				_xUnits = tr("min");
+				_xScale = MIN2S;
+			} else {
+				_xUnits = tr("h");
+				_xScale = H2S;
+			}
 	}
 
-	pi = new QGraphicsPathItem(path);
-	QBrush brush(_palette.color(), Qt::SolidPattern);
-	QPen pen(brush, 0);
-	pi->setPen(pen);
-	_scene->addItem(pi);
-	_graphs.append(pi);
+	createXLabel();
+}
+
+void GraphView::setUnits(Units units)
+{
+	_units = units;
+	setXUnits();
+}
+
+void GraphView::setGraphType(GraphType type)
+{
+	_graphType = type;
+	_bounds = QRectF();
+
+	for (int i = 0; i < _graphs.count(); i++) {
+		_graphs.at(i)->setGraphType(type);
+		if (_graphs.at(i)->scene() == _scene)
+			_bounds |= _graphs.at(i)->bounds();
+	}
+
+	if (type == Distance)
+		_xLabel = tr("Distance");
+	else
+		_xLabel = tr("Time");
+	setXUnits();
+
+	redraw();
+}
+
+void GraphView::showGrid(bool show)
+{
+	_grid->setVisible(show);
+}
+
+void GraphView::loadGraph(const Graph &graph, PathItem *path, int id)
+{
+	if (graph.size() < 2)
+		return;
+
+	GraphItem *gi = new GraphItem(graph);
+	gi->setGraphType(_graphType);
+	gi->setId(id);
+	gi->setColor(_palette.nextColor());
+	gi->setWidth(_width);
+
+	connect(this, SIGNAL(sliderPositionChanged(qreal)), gi,
+	  SLOT(emitSliderPositionChanged(qreal)));
+	connect(gi, SIGNAL(sliderPositionChanged(qreal)), path,
+	  SLOT(moveMarker(qreal)));
+	connect(path, SIGNAL(selected(bool)), gi, SLOT(selected(bool)));
+
+	_graphs.append(gi);
+
+	if (!_hide.contains(id)) {
+		_visible.append(gi);
+		_scene->addItem(gi);
+		_bounds |= gi->bounds();
+		setXUnits();
+	}
+}
+
+void GraphView::removeItem(QGraphicsItem *item)
+{
+	if (item->scene() == _scene)
+		_scene->removeItem(item);
+}
+
+void GraphView::addItem(QGraphicsItem *item)
+{
+	if (item->scene() != _scene)
+		_scene->addItem(item);
+}
+
+void GraphView::showGraph(bool show, int id)
+{
+	if (show)
+		_hide.remove(id);
+	else
+		_hide.insert(id);
+
+	_visible.clear();
+	_bounds = QRectF();
+	for (int i = 0; i < _graphs.count(); i++) {
+		GraphItem* gi = _graphs.at(i);
+		if (_hide.contains(gi->id()))
+			removeItem(gi);
+		else {
+			addItem(gi);
+			_visible.append(gi);
+			_bounds |= gi->bounds();
+		}
+	}
 }
 
 void GraphView::redraw()
 {
-	if (!_graphs.isEmpty())
-		redraw(viewport()->size() - QSizeF(MARGIN, MARGIN));
+	redraw(viewport()->size() - QSizeF(MARGIN, MARGIN));
+}
+
+QRectF GraphView::bounds() const
+{
+	QRectF br(_bounds);
+	br.moveTopLeft(QPointF(br.left(), -br.top() - br.height()));
+	return br;
 }
 
 void GraphView::redraw(const QSizeF &size)
@@ -165,24 +248,28 @@ void GraphView::redraw(const QSizeF &size)
 	QRectF r;
 	QSizeF mx, my;
 	RangeF rx, ry;
-	QTransform transform;
-	qreal xs, ys;
+	qreal sx, sy;
 
 
-	if (_xAxis->scene() == _scene)
-		_scene->removeItem(_xAxis);
-	if (_yAxis->scene() == _scene)
-		_scene->removeItem(_yAxis);
-	if (_slider->scene() == _scene)
-		_scene->removeItem(_slider);
-	if (_info->scene() == _scene)
-		_scene->removeItem(_info);
+	if (_visible.isEmpty() || _bounds.isNull()) {
+		removeItem(_xAxis);
+		removeItem(_yAxis);
+		removeItem(_slider);
+		removeItem(_info);
+		removeItem(_grid);
+		_scene->setSceneRect(QRectF());
+		return;
+	}
 
-	for (int i = 0; i < _graphs.size(); i++)
-		_graphs.at(i)->resetTransform();
+	addItem(_xAxis);
+	addItem(_yAxis);
+	addItem(_slider);
+	addItem(_info);
+	addItem(_grid);
 
-	rx = RangeF(_bounds.left() * _xScale, _bounds.right() * _xScale);
-	ry = RangeF(_bounds.top() * _yScale, _bounds.bottom() * _yScale);
+	rx = RangeF(bounds().left() * _xScale, bounds().right() * _xScale);
+	ry = RangeF(bounds().top() * _yScale + _yOffset, bounds().bottom() * _yScale
+	  + _yOffset);
 	if (ry.size() < _minYRange)
 		ry.resize(_minYRange);
 
@@ -191,50 +278,56 @@ void GraphView::redraw(const QSizeF &size)
 	mx = _xAxis->margin();
 	my = _yAxis->margin();
 
-	r = _scene->itemsBoundingRect();
+	r = _bounds;
 	if (r.height() < _minYRange)
 		r.adjust(0, -(_minYRange/2 - r.height()/2), 0,
 		  _minYRange/2 - r.height()/2);
 
-	xs = (size.width() - (my.width() + mx.width())) / r.width();
-	ys = (size.height() - (mx.height() + my.height())
+	sx = (size.width() - (my.width() + mx.width())) / r.width();
+	sy = (size.height() - (mx.height() + my.height())
 	  - _info->boundingRect().height()) / r.height();
-	transform.scale(xs, ys);
 
-	for (int i = 0; i < _graphs.size(); i++)
-		_graphs.at(i)->setTransform(transform);
+	for (int i = 0; i < _visible.size(); i++)
+		_visible.at(i)->setScale(sx, sy);
 
-	r = _scene->itemsBoundingRect();
-	if (r.height() < _minYRange * ys)
-		r.adjust(0, -(_minYRange/2 * ys - r.height()/2), 0,
-		  (_minYRange/2) * ys - r.height()/2);
+	QPointF p(r.left() * sx, r.top() * sy);
+	QSizeF s(r.width() * sx, r.height() * sy);
+	r = QRectF(p, s);
+	if (r.height() < _minYRange * sy)
+		r.adjust(0, -(_minYRange/2 * sy - r.height()/2), 0,
+		  (_minYRange/2) * sy - r.height()/2);
 
 	_xAxis->setSize(r.width());
 	_yAxis->setSize(r.height());
 	_xAxis->setPos(r.bottomLeft());
 	_yAxis->setPos(r.bottomLeft());
-	_scene->addItem(_xAxis);
-	_scene->addItem(_yAxis);
+
+	_grid->setSize(r.size());
+	_grid->setTicks(_xAxis->ticks(), _yAxis->ticks());
+	_grid->setPos(r.bottomLeft());
 
 	_slider->setArea(r);
-	_slider->setPos((_sliderPos / _bounds.width()) * _slider->area().width(),
-	  r.bottom());
-	_scene->addItem(_slider);
+	updateSliderPosition();
 
-	updateSliderInfo();
-
-	r = _scene->itemsBoundingRect();
+	r |= _xAxis->sceneBoundingRect();
+	r |= _yAxis->sceneBoundingRect();
 	_info->setPos(r.topLeft() + QPointF(r.width()/2
 	  - _info->boundingRect().width()/2, -_info->boundingRect().height()));
-	_scene->addItem(_info);
 
 	_scene->setSceneRect(_scene->itemsBoundingRect());
 }
 
 void GraphView::resizeEvent(QResizeEvent *)
 {
-	if (!_graphs.empty())
-		redraw();
+	redraw();
+}
+
+void GraphView::mousePressEvent(QMouseEvent *e)
+{
+	if (e->button() == Qt::LeftButton)
+		newSliderPosition(mapToScene(e->pos()));
+
+	QGraphicsView::mousePressEvent(e);
 }
 
 void GraphView::plot(QPainter *painter, const QRectF &target)
@@ -255,19 +348,14 @@ void GraphView::plot(QPainter *painter, const QRectF &target)
 
 void GraphView::clear()
 {
-	if (_xAxis->scene() == _scene)
-		_scene->removeItem(_xAxis);
-	if (_yAxis->scene() == _scene)
-		_scene->removeItem(_yAxis);
-	if (_slider->scene() == _scene)
-		_scene->removeItem(_slider);
-	if (_info->scene() == _scene)
-		_scene->removeItem(_info);
-
 	_slider->clear();
 	_info->clear();
-	_scene->clear();
+
+	for (int i = 0; i < _graphs.count(); i++)
+		delete _graphs[i];
+
 	_graphs.clear();
+	_visible.clear();
 	_palette.reset();
 
 	_bounds = QRectF();
@@ -276,95 +364,73 @@ void GraphView::clear()
 	_scene->setSceneRect(0, 0, 0, 0);
 }
 
-static qreal yAtX(const QPainterPath &path, qreal x)
+void GraphView::updateSliderPosition()
 {
-	int low = 0;
-	int high = path.elementCount() - 1;
-	int mid = 0;
+	if (bounds().width() <= 0)
+		return;
 
-	Q_ASSERT(high > low);
-	Q_ASSERT(x >= path.elementAt(low).x && x <= path.elementAt(high).x);
-
-	while (low <= high) {
-		mid = low + ((high - low) / 2);
-		const QPainterPath::Element &e = path.elementAt(mid);
-		if (e.x > x)
-			high = mid - 1;
-		else if (e.x < x)
-			low = mid + 1;
-		else
-			return e.y;
+	if (_sliderPos <= bounds().right() && _sliderPos >= bounds().left()) {
+		_slider->setPos((_sliderPos / bounds().width())
+		  * _slider->area().width(), _slider->area().bottom());
+		_slider->setVisible(!_visible.isEmpty());
+	} else {
+		_slider->setPos(_slider->area().left(), _slider->area().bottom());
+		_slider->setVisible(false);
 	}
 
-	QLineF l;
-	if (path.elementAt(mid).x < x)
-		l = QLineF(path.elementAt(mid).x, path.elementAt(mid).y,
-		  path.elementAt(mid+1).x, path.elementAt(mid+1).y);
-	else
-		l = QLineF(path.elementAt(mid-1).x, path.elementAt(mid-1).y,
-		  path.elementAt(mid).x, path.elementAt(mid).y);
-
-	return l.pointAt((x - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
+	updateSliderInfo();
 }
 
 void GraphView::updateSliderInfo()
 {
-	_sliderInfo->setVisible(_graphs.size() == 1);
-
-	if (_graphs.size() != 1)
+	_sliderInfo->setVisible(_visible.count() == 1);
+	if (!_sliderInfo->isVisible())
 		return;
 
-	const QPainterPath &path = _graphs.at(0)->path();
-	QRectF br = path.boundingRect();
+	QRectF br(_visible.first()->bounds());
 	if (br.height() < _minYRange)
 		br.adjust(0, -(_minYRange/2 - br.height()/2), 0,
 		  _minYRange/2 - br.height()/2);
 
-	qreal y = yAtX(path, _sliderPos);
+	qreal y = _visible.first()->yAtX(_sliderPos);
 	qreal r = (y - br.bottom()) / br.height();
 
-	qreal pos = (_sliderPos / _bounds.width()) * _slider->area().width();
+	qreal pos = (_sliderPos / bounds().width()) * _slider->area().width();
 	SliderInfoItem::Side s = (pos + _sliderInfo->boundingRect().width()
 	  > _slider->area().right()) ? SliderInfoItem::Left : SliderInfoItem::Right;
 
 	_sliderInfo->setSide(s);
 	_sliderInfo->setPos(QPointF(0, _slider->boundingRect().height() * r));
-	_sliderInfo->setText(QString::number(-y * _yScale, 'f', _precision));
+	_sliderInfo->setText(QString::number(-y * _yScale + _yOffset, 'f',
+	  _precision));
 }
 
 void GraphView::emitSliderPositionChanged(const QPointF &pos)
 {
-	if (_graphs.isEmpty())
+	if (_slider->area().width() <= 0)
 		return;
 
-	_sliderPos = (pos.x() / _slider->area().width()) * _bounds.width();
-	emit sliderPositionChanged(_sliderPos);
+	_sliderPos = (pos.x() / _slider->area().width()) * bounds().width();
+	_sliderPos = qMax(_sliderPos, bounds().left());
+	_sliderPos = qMin(_sliderPos, bounds().right());
+	updateSliderPosition();
 
-	updateSliderInfo();
+	emit sliderPositionChanged(_sliderPos);
 }
 
 void GraphView::setSliderPosition(qreal pos)
 {
-	_sliderPos = pos;
-
-	if (_graphs.isEmpty())
+	if (_visible.isEmpty())
 		return;
 
-	if (pos > _bounds.right() || pos < _bounds.left())
-		_slider->setVisible(false);
-	else {
-		_slider->setPos((pos / _bounds.width()) * _slider->area().width(), 0);
-		_slider->setVisible(true);
-	}
+	_sliderPos = pos;
+	updateSliderPosition();
 }
 
 void GraphView::newSliderPosition(const QPointF &pos)
 {
-	if (_slider->area().contains(pos)) {
+	if (_slider->area().contains(pos))
 		_slider->setPos(pos);
-		_slider->setVisible(true);
-		emitSliderPositionChanged(pos);
-	}
 }
 
 void GraphView::addInfo(const QString &key, const QString &value)
@@ -376,3 +442,35 @@ void GraphView::clearInfo()
 {
 	_info->clear();
 }
+
+void GraphView::setPalette(const Palette &palette)
+{
+	_palette = palette;
+	_palette.reset();
+
+	for (int i = 0; i < _graphs.count(); i++)
+		_graphs.at(i)->setColor(_palette.nextColor());
+}
+
+void GraphView::setGraphWidth(int width)
+{
+	_width = width;
+
+	for (int i = 0; i < _graphs.count(); i++)
+		_graphs.at(i)->setWidth(width);
+}
+
+void GraphView::useOpenGL(bool use)
+{
+	if (use) {
+#ifdef Q_OS_WIN32
+		if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)
+#endif // Q_OS_WIN32
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+		setViewport(new QGLWidget);
+#else // QT 5
+		setViewport(new QOpenGLWidget);
+#endif // QT 5
+	} else
+		setViewport(new QWidget);
+}

src/graphview.h

@@ -2,29 +2,20 @@
 #define GRAPHVIEW_H
 
 #include <QGraphicsView>
-#include <QGraphicsScene>
-#include <QVector>
 #include <QList>
-#include <QPointF>
+#include <QSet>
 #include "palette.h"
+#include "units.h"
+#include "graph.h"
 
 
 class AxisItem;
 class SliderItem;
 class SliderInfoItem;
 class InfoItem;
-
-class Scene : public QGraphicsScene
-{
-	Q_OBJECT
-
-public:
-	Scene(QObject *parent = 0) : QGraphicsScene(parent) {}
-	void mousePressEvent(QGraphicsSceneMouseEvent *e);
-
-signals:
-	void mouseClicked(const QPointF &pos);
-};
+class GraphItem;
+class PathItem;
+class GridItem;
 
 class GraphView : public QGraphicsView
 {
@@ -34,26 +25,27 @@ public:
 	GraphView(QWidget *parent = 0);
 	~GraphView();
 
-	void loadData(const QVector<QPointF> &data);
-
+	void loadGraph(const Graph &graph, PathItem *path, int id = 0);
+	int count() const {return _graphs.count();}
 	void redraw();
 	void clear();
 
-	int count() const {return _graphs.count();}
+	void showGraph(bool show, int id = 0);
+	void setGraphType(GraphType type);
+	void setUnits(Units units);
+	void showGrid(bool show);
+
+	void setPalette(const Palette &palette);
+	void setGraphWidth(int width);
 
-	const QString &xLabel() const {return _xLabel;}
 	const QString &yLabel() const {return _yLabel;}
-	const QString &xUnits() const {return _xUnits;}
 	const QString &yUnits() const {return _yUnits;}
-	qreal xScale() const {return _xScale;}
 	qreal yScale() const {return _yScale;}
-
-	void setXLabel(const QString &label);
+	qreal yOffset() const {return _yOffset;}
 	void setYLabel(const QString &label);
-	void setXUnits(const QString &units);
 	void setYUnits(const QString &units);
-	void setXScale(qreal scale);
-	void setYScale(qreal scale);
+	void setYScale(qreal scale) {_yScale = scale;}
+	void setYOffset(qreal offset) {_yOffset = offset;}
 
 	void setSliderPrecision(int precision) {_precision = precision;}
 	void setMinYRange(qreal range) {_minYRange = range;}
@@ -63,44 +55,59 @@ public:
 
 	void plot(QPainter *painter, const QRectF &target);
 
+	void useOpenGL(bool use);
+
 signals:
 	void sliderPositionChanged(qreal);
 
 protected:
-	const QRectF &bounds() const {return _bounds;}
-	void resizeEvent(QResizeEvent *);
+	QRectF bounds() const;
 	void redraw(const QSizeF &size);
 	void addInfo(const QString &key, const QString &value);
 	void clearInfo();
-	void skipColor() {_palette.color();}
+	void skipColor() {_palette.nextColor();}
 
 private slots:
 	void emitSliderPositionChanged(const QPointF &pos);
 	void newSliderPosition(const QPointF &pos);
 
 private:
+	void setXUnits();
 	void createXLabel();
 	void createYLabel();
-	void updateBounds(const QPointF &point);
+	void updateSliderPosition();
 	void updateSliderInfo();
+	void removeItem(QGraphicsItem *item);
+	void addItem(QGraphicsItem *item);
+
+	void resizeEvent(QResizeEvent *);
+	void mousePressEvent(QMouseEvent *);
 
 	qreal _xScale, _yScale;
+	qreal _yOffset;
 	QString _xUnits, _yUnits;
 	QString _xLabel, _yLabel;
 	int _precision;
 	qreal _minYRange;
 	qreal _sliderPos;
 
-	Scene *_scene;
+	QGraphicsScene *_scene;
 
 	AxisItem *_xAxis, *_yAxis;
 	SliderItem *_slider;
 	SliderInfoItem *_sliderInfo;
 	InfoItem *_info;
+	GridItem *_grid;
 
-	QList<QGraphicsPathItem*> _graphs;
+	QList<GraphItem*> _graphs;
+	QList<GraphItem*> _visible;
+	QSet<int> _hide;
 	QRectF _bounds;
 	Palette _palette;
+	int _width;
+
+	Units _units;
+	GraphType _graphType;
 };
 
 #endif // GRAPHVIEW_H

src/griditem.cpp

@@ -0,0 +1,50 @@
+#include <QPainter>
+#include "griditem.h"
+
+
+#define GRID_WIDTH 0
+
+GridItem::GridItem(QGraphicsItem *parent) : QGraphicsItem(parent)
+{
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
+}
+
+void GridItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+	QBrush brush(Qt::gray);
+	QPen pen = QPen(brush, GRID_WIDTH, Qt::DotLine);
+
+
+	painter->setRenderHint(QPainter::Antialiasing, false);
+	painter->setPen(pen);
+
+	for (int i = 0; i < _xTicks.size(); i++)
+		painter->drawLine(_xTicks.at(i), 0, _xTicks.at(i),
+		  -_boundingRect.height());
+	for (int i = 0; i < _yTicks.size(); i++)
+		painter->drawLine(0, -_yTicks.at(i), boundingRect().width(),
+		  -_yTicks.at(i));
+
+/*
+	painter->setPen(Qt::red);
+	painter->drawRect(boundingRect());
+*/
+}
+
+void GridItem::setTicks(const QList<qreal> &x, const QList<qreal> &y)
+{
+	_xTicks = x; _yTicks = y;
+	update();
+}
+
+void GridItem::setSize(const QSizeF &size)
+{
+	prepareGeometryChange();
+
+	_boundingRect = QRectF(QPointF(0, -size.height()), size);
+}

src/griditem.h

@@ -0,0 +1,23 @@
+#ifndef GRIDITEM_H
+#define GRIDITEM_H
+
+#include <QGraphicsItem>
+
+class GridItem : public QGraphicsItem
+{
+public:
+	GridItem(QGraphicsItem *parent = 0);
+
+	QRectF boundingRect() const {return _boundingRect;}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	void setTicks(const QList<qreal> &x, const QList<qreal> &y);
+	void setSize(const QSizeF &size);
+
+private:
+	QRectF _boundingRect;
+	QList<qreal> _xTicks, _yTicks;
+};
+
+#endif // GRIDITEM_H

src/gui.h

@@ -6,8 +6,11 @@
 #include <QList>
 #include <QDate>
 #include <QPrinter>
+#include "units.h"
+#include "graph.h"
 #include "poi.h"
-#include "margins.h"
+#include "exportdialog.h"
+#include "optionsdialog.h"
 
 class QMenu;
 class QToolBar;
@@ -18,11 +21,8 @@ class QLabel;
 class QSignalMapper;
 class QPrinter;
 class FileBrowser;
-class GraphView;
-class ElevationGraph;
-class SpeedGraph;
-class HeartRateGraph;
-class TrackView;
+class GraphTab;
+class PathView;
 class Map;
 
 class GUI : public QMainWindow
@@ -46,14 +46,17 @@ private slots:
 	void reloadFile();
 	void openPOIFile();
 	void closePOIFiles();
-	void showPOI(bool checked);
-	void showMap(bool checked);
-	void showGraphs(bool checked);
-	void showToolbars(bool checked);
-	void showFullscreen(bool checked);
+	void showMap(bool show);
+	void showGraphs(bool show);
+	void showGraphGrids(bool show);
+	void showToolbars(bool show);
+	void showFullscreen(bool show);
+	void showTracks(bool show);
+	void showRoutes(bool show);
 	void clearMapCache();
 	void nextMap();
 	void prevMap();
+	void openOptions();
 
 	void mapChanged(int);
 	void graphChanged(int);
@@ -64,13 +67,14 @@ private slots:
 	void last();
 	void first();
 
-	void setMetricUnits();
-	void setImperialUnits();
+	void setMetricUnits() {setUnits(Metric);}
+	void setImperialUnits() {setUnits(Imperial);}
+	void setDistanceGraph() {setGraphType(Distance);}
+	void setTimeGraph() {setGraphType(Time);}
 
 	void sliderPositionChanged(qreal pos);
 
 private:
-	typedef QPair<GraphView *, QString> GraphTab;
 	typedef QPair<QDate, QDate> DateRange;
 
 	void loadMaps();
@@ -85,8 +89,9 @@ private:
 	void createMenus();
 	void createToolBars();
 	void createStatusBar();
-	void createTrackView();
-	void createTrackGraphs();
+	void createPathView();
+	void createGraphTabs();
+	void createBrowser();
 
 	bool openPOIFile(const QString &fileName);
 	bool loadFile(const QString &fileName);
@@ -95,30 +100,31 @@ private:
 	void updateWindowTitle();
 	void updateNavigationActions();
 	void updateGraphTabs();
-	void updateTrackView();
+	void updatePathView();
 
-	void keyPressEvent(QKeyEvent * event);
-	void closeEvent(QCloseEvent *event);
+	void setUnits(Units units);
+	void setGraphType(GraphType type);
 
+	qreal distance() const;
+	qreal time() const;
 	int mapIndex(const QString &name);
 	void readSettings();
 	void writeSettings();
 
-	QMenu *_fileMenu;
-	QMenu *_helpMenu;
-	QMenu *_poiMenu;
-	QMenu *_mapMenu;
-	QMenu *_settingsMenu;
-	QMenu *_unitsMenu;
-	QMenu *_poiFilesMenu;
+	const QString fileFormats() const;
+
+	void keyPressEvent(QKeyEvent *event);
+	void closeEvent(QCloseEvent *event);
+	void dragEnterEvent(QDragEnterEvent *event);
+	void dropEvent(QDropEvent *event);
 
 	QToolBar *_fileToolBar;
 	QToolBar *_showToolBar;
 	QToolBar *_navigationToolBar;
-	QTabWidget *_trackGraphs;
+	QMenu *_poiFilesMenu;
+
 	QActionGroup *_fileActionGroup;
 	QActionGroup *_navigationActionGroup;
-
 	QAction *_exitAction;
 	QAction *_keysAction;
 	QAction *_dataSourcesAction;
@@ -132,10 +138,15 @@ private:
 	QAction *_openPOIAction;
 	QAction *_closePOIAction;
 	QAction *_showPOIAction;
+	QAction *_overlapPOIAction;
+	QAction *_showPOILabelsAction;
 	QAction *_showMapAction;
 	QAction *_fullscreenAction;
 	QAction *_clearMapCacheAction;
 	QAction *_showGraphsAction;
+	QAction *_showGraphGridAction;
+	QAction *_distanceGraphAction;
+	QAction *_timeGraphAction;
 	QAction *_showToolbarsAction;
 	QAction *_nextAction;
 	QAction *_prevAction;
@@ -145,6 +156,12 @@ private:
 	QAction *_imperialUnitsAction;
 	QAction *_nextMapAction;
 	QAction *_prevMapAction;
+	QAction *_showTracksAction;
+	QAction *_showRoutesAction;
+	QAction *_showWaypointsAction;
+	QAction *_showWaypointLabelsAction;
+	QAction *_showRouteWaypointsAction;
+	QAction *_openOptionsAction;
 	QList<QAction*> _mapActions;
 	QList<QAction*> _poiFilesActions;
 
@@ -154,13 +171,11 @@ private:
 	QLabel *_distanceLabel;
 	QLabel *_timeLabel;
 
-	TrackView *_track;
-	ElevationGraph *_elevationGraph;
-	SpeedGraph *_speedGraph;
-	HeartRateGraph *_heartRateGraph;
-	QList<GraphTab> _tabs;
+	PathView *_pathView;
+	QTabWidget *_graphTabWidget;
+	QList<GraphTab*> _tabs;
 
-	POI _poi;
+	POI *_poi;
 	QList<Map*> _maps;
 
 	FileBrowser *_browser;
@@ -168,7 +183,10 @@ private:
 	Map *_currentMap;
 
 	int _trackCount;
-	qreal _distance;
+	int _routeCount;
+	int _waypointCount;
+	qreal _trackDistance;
+	qreal _routeDistance;
 	qreal _time;
 	DateRange _dateRange;
 
@@ -177,10 +195,8 @@ private:
 	int _frameStyle;
 	bool _showGraphs;
 
-	QString _exportFileName;
-	QPrinter::PaperSize _exportPaperSize;
-	QPrinter::Orientation _exportOrientation;
-	MarginsF _exportMargins;
+	Export _export;
+	Options _options;
 };
 
 #endif // GUI_H

src/heartrategraph.cpp

@@ -1,51 +1,56 @@
-#include "gpx.h"
+#include "data.h"
 #include "heartrategraph.h"
 
 
-HeartRateGraph::HeartRateGraph(QWidget *parent) : GraphView(parent)
+HeartRateGraph::HeartRateGraph(QWidget *parent) : GraphTab(parent)
 {
 	_units = Metric;
+	_showTracks = true;
 
 	GraphView::setYUnits(tr("1/min"));
-	setXLabel(tr("Distance"));
 	setYLabel(tr("Heart rate"));
 
 	setSliderPrecision(0);
 }
 
-void HeartRateGraph::addInfo()
+void HeartRateGraph::setInfo()
 {
-	GraphView::addInfo(tr("Average"), QString::number(avg() * yScale(), 'f', 0)
-	  + UNIT_SPACE + yUnits());
-	GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(),  'f', 0)
-	  + UNIT_SPACE + yUnits());
-
-	redraw();
+	if (_showTracks) {
+		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale(), 'f',
+		  0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		  0) + UNIT_SPACE + yUnits());
+	} else
+		clearInfo();
 }
 
-void HeartRateGraph::loadGPX(const GPX &gpx)
+void HeartRateGraph::loadData(const Data &data, const QList<PathItem *> &paths)
 {
-	for (int i = 0; i < gpx.trackCount(); i++) {
-		QVector<QPointF> data;
+	for (int i = 0; i < data.tracks().count(); i++) {
+		const Graph &graph = data.tracks().at(i)->heartRate();
 		qreal sum = 0, w = 0;
 
-		gpx.track(i).heartRateGraph(data);
-		if (data.count() < 2) {
+		if (graph.size() < 2) {
 			skipColor();
 			continue;
 		}
 
-		for (int j = 1; j < data.size(); j++) {
-			sum += data.at(j).y() * (data.at(j).x() - data.at(j-1).x());
-			w += data.at(j).x() - data.at(j-1).x();
+		for (int j = 1; j < graph.size(); j++) {
+			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+			sum += graph.at(j).y() * ds;
+			w += ds;
 		}
-		_avg.append(QPointF(gpx.track(i).distance(), sum/w));
+		_avg.append(QPointF(data.tracks().at(i)->distance(), sum/w));
 
-		loadData(data);
+		GraphView::loadGraph(graph, paths.at(i));
 	}
 
-	setXUnits();
-	addInfo();
+	for (int i = 0; i < data.routes().count(); i++)
+		skipColor();
+
+	setInfo();
+
+	redraw();
 }
 
 qreal HeartRateGraph::avg() const
@@ -68,32 +73,12 @@ void HeartRateGraph::clear()
 	GraphView::clear();
 }
 
-void HeartRateGraph::setXUnits()
+void HeartRateGraph::showTracks(bool show)
 {
-	if (_units == Metric) {
-		if (bounds().width() < KMINM) {
-			GraphView::setXUnits(tr("m"));
-			setXScale(1);
-		} else {
-			GraphView::setXUnits(tr("km"));
-			setXScale(M2KM);
-		}
-	} else {
-		if (bounds().width() < MIINM) {
-			GraphView::setXUnits(tr("ft"));
-			setXScale(M2FT);
-		} else {
-			GraphView::setXUnits(tr("mi"));
-			setXScale(M2MI);
-		}
-	}
-}
+	_showTracks = show;
 
-void HeartRateGraph::setUnits(enum Units units)
-{
-	_units = units;
-	setXUnits();
+	showGraph(show);
+	setInfo();
 
-	clearInfo();
-	addInfo();
+	redraw();
 }

src/heartrategraph.h

@@ -1,31 +1,31 @@
 #ifndef HEARTRATEGRAPH_H
 #define HEARTRATEGRAPH_H
 
-#include "graphview.h"
-#include "units.h"
+#include "graphtab.h"
 
-class GPX;
-
-class HeartRateGraph : public GraphView
+class HeartRateGraph : public GraphTab
 {
 	Q_OBJECT
 
 public:
 	HeartRateGraph(QWidget *parent = 0);
 
-	void loadGPX(const GPX &gpx);
+	QString label() const {return tr("Heart rate");}
+	void loadData(const Data &data, const QList<PathItem *> &paths);
 	void clear();
-	void setUnits(enum Units units);
-
-	qreal avg() const;
-	qreal max() const {return bounds().bottom();}
+	void setUnits(enum Units) {}
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
 
 private:
-	void setXUnits();
-	void addInfo();
+	qreal avg() const;
+	qreal max() const {return bounds().bottom();}
+	void setInfo();
 
 	QList<QPointF> _avg;
+
 	enum Units _units;
+	bool _showTracks;
 };
 
 #endif // HEARTRATEGRAPH_H

src/icons.h

@@ -1,13 +1,16 @@
 #ifndef ICONS_H
 #define ICONS_H
 
-#define APP_ICON         ":/icons/gpxsee.png"
+#define APP_ICON          ":/icons/gpxsee.png"
+
+// Toolbar/menu icons
 #define OPEN_FILE_ICON   ":/icons/document-open.png"
 #define EXPORT_FILE_ICON ":/icons/document-export.png"
 #define PRINT_FILE_ICON  ":/icons/document-print.png"
 #define CLOSE_FILE_ICON  ":/icons/dialog-close.png"
 #define SHOW_POI_ICON    ":/icons/flag.png"
 #define SHOW_MAP_ICON    ":/icons/applications-internet.png"
+#define SHOW_GRAPHS_ICON ":/icons/office-chart-line-stacked.png"
 #define QUIT_ICON        ":/icons/application-exit.png"
 #define RELOAD_FILE_ICON ":/icons/view-refresh.png"
 #define NEXT_FILE_ICON   ":/icons/arrow-right.png"
@@ -16,4 +19,9 @@
 #define FIRST_FILE_ICON  ":/icons/arrow-left-double.png"
 #define FULLSCREEN_ICON  ":/icons/view-fullscreen.png"
 
+// Options dialog icons
+#define APPEARANCE_ICON  ":/icons/preferences-desktop-display.png"
+#define POI_ICON         ":/icons/flag_48.png"
+#define SYSTEM_ICON      ":/icons/system-run.png"
+
 #endif /* ICONS_H */

src/igcparser.cpp

@@ -0,0 +1,249 @@
+#include <cstring>
+#include "misc.h"
+#include "igcparser.h"
+
+
+static bool readLat(const char *data, qreal &lat)
+{
+	int d = str2int(data, 2);
+	int mi = str2int(data + 2, 2);
+	int mf = str2int(data + 4, 3);
+	if (d < 0 || mi < 0 || mf < 0)
+		return false;
+
+	if (!(data[7] == 'N' || data[7] == 'S'))
+		return false;
+
+	lat = d + (((qreal)mi + (qreal)mf/1000) / 60);
+	if (lat > 90)
+		return false;
+
+	if (data[7] == 'S')
+		lat = -lat;
+
+	return true;
+}
+
+static bool readLon(const char *data, qreal &lon)
+{
+	int d = str2int(data, 3);
+	int mi = str2int(data + 3, 2);
+	int mf = str2int(data + 5, 3);
+	if (d < 0 || mi < 0 || mf < 0)
+		return false;
+
+	if (!(data[8] == 'E' || data[8] == 'W'))
+		return false;
+
+	lon = d + (((qreal)mi + (qreal)mf/1000) / 60);
+	if (lon > 180)
+		return false;
+
+	if (data[8] == 'W')
+		lon = -lon;
+
+	return true;
+}
+
+static bool readAltitude(const char *data, qreal &ele)
+{
+	int p;
+
+	if (!(data[0] == 'A' || data[0] == 'V'))
+		return false;
+
+	if (data[1] == '-')
+		p = str2int(data + 2, 4);
+	else
+		p = str2int(data + 1, 5);
+
+	int g = str2int(data + 6, 5);
+	if (p < 0 || g < 0)
+		return false;
+
+	if (data[0] == 'A')
+		ele = (qreal)g;
+	else
+		ele = NAN;
+
+	return true;
+}
+
+static bool readTimestamp(const char *data, QTime &time)
+{
+	int h = str2int(data, 2);
+	int m = str2int(data + 2, 2);
+	int s = str2int(data + 4, 2);
+
+	if (h < 0 || m < 0 || s < 0)
+		return false;
+
+	time = QTime(h, m, s);
+	if (!time.isValid())
+		return false;
+
+	return true;
+}
+
+static bool readARecord(const char *line, qint64 len)
+{
+	if (len < 9 || line[0] != 'A')
+		return false;
+
+	for (int i = 1; i < 7; i++)
+		if (!::isprint(line[i]))
+			return false;
+	return true;
+}
+
+bool IGCParser::readHRecord(const char *line, int len)
+{
+	if (len < 10 || ::strncmp(line, "HFDTE", 5))
+		return true;
+
+	int d = str2int(line + 5, 2);
+	int m = str2int(line + 7, 2);
+	int y = str2int(line + 9, 2);
+
+	if (y < 0 || m < 0 || d < 0) {
+		_errorString = "Invalid date header format";
+		return false;
+	}
+
+	_date = QDate(y + 2000 < QDate::currentDate().year() ? 2000 + y : 1900 + y,
+	  m, d);
+	if (!_date.isValid()) {
+		_errorString = "Invalid date";
+		return false;
+	}
+
+	return true;
+}
+
+bool IGCParser::readBRecord(const char *line, int len)
+{
+	qreal lat, lon, ele;
+	QTime time;
+
+
+	if (len < 35)
+		return false;
+
+	if (!readTimestamp(line + 1, time)) {
+		_errorString = "Invalid timestamp";
+		return false;
+	}
+
+	if (!readLat(line + 7, lat)) {
+		_errorString = "Invalid latitude";
+		return false;
+	}
+	if (!readLon(line + 15, lon)) {
+		_errorString = "Invalid longitude";
+		return false;
+	}
+
+	if (!readAltitude(line + 24, ele)) {
+		_errorString = "Invalid altitude";
+		return false;
+	}
+
+
+	if (time < _time)
+		_date = _date.addDays(1);
+	_time = time;
+
+	Trackpoint t(Coordinates(lon, lat));
+	t.setTimestamp(QDateTime(_date, _time, Qt::UTC));
+	t.setElevation(ele);
+	_tracks.last().append(t);
+
+	return true;
+}
+
+bool IGCParser::readCRecord(const char *line, int len)
+{
+	qreal lat, lon;
+
+
+	if (len < 18)
+		return false;
+
+	if (!readLat(line + 1, lat)) {
+		_errorString = "Invalid latitude";
+		return false;
+	}
+	if (!readLon(line + 9, lon)) {
+		_errorString = "Invalid longitude";
+		return false;
+	}
+
+	if (!(lat == 0 && lon == 0)) {
+		QByteArray ba(line + 18, len - 19);
+
+		Waypoint w(Coordinates(lon, lat));
+		w.setName(QString(ba.trimmed()));
+		_routes.last().append(w);
+	}
+
+	return true;
+}
+
+bool IGCParser::loadFile(QFile *file)
+{
+	qint64 len;
+	char line[76 + 2 + 1 + 1];
+	bool route = false, track = false;
+
+
+	_errorLine = 1;
+	_errorString.clear();
+
+	while (!file->atEnd()) {
+		len = file->readLine(line, sizeof(line));
+
+		if (len < 0) {
+			_errorString = "I/O error";
+			return false;
+		} else if (len > (qint64)sizeof(line) - 1) {
+			_errorString = "Line limit exceeded";
+			return false;
+		}
+
+		if (_errorLine == 1) {
+			if (!readARecord(line, len)) {
+				_errorString = "Invalid/missing A record";
+				return false;
+			}
+		} else {
+			if (line[0] == 'H') {
+				if (!readHRecord(line, len))
+					return false;
+			} else if (line[0] == 'C') {
+				if (route) {
+					if (!readCRecord(line, len))
+						return false;
+				} else {
+					route = true;
+					_routes.append(RouteData());
+				}
+			} else if (line[0] == 'B') {
+				if (_date.isNull()) {
+					_errorString = "Missing date header";
+					return false;
+				}
+				if (!track) {
+					_tracks.append(TrackData());
+					_time = QTime(0, 0);
+					track = true;
+				}
+				if (!readBRecord(line, len))
+					return false;
+			}
+		}
+
+		_errorLine++;
+	}
+
+	return true;
+}

src/igcparser.h

@@ -0,0 +1,33 @@
+#ifndef IGCPARSER_H
+#define IGCPARSER_H
+
+#include <QDate>
+#include <QTime>
+#include "parser.h"
+
+
+class IGCParser : public Parser
+{
+public:
+	IGCParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
+	  {_errorLine = 0;}
+	~IGCParser() {}
+
+	bool loadFile(QFile *file);
+	QString errorString() const {return _errorString;}
+	int errorLine() const {return _errorLine;}
+
+private:
+	bool readHRecord(const char *line, int len);
+	bool readBRecord(const char *line, int len);
+	bool readCRecord(const char *line, int len);
+
+	int _errorLine;
+	QString _errorString;
+
+	QDate _date;
+	QTime _time;
+};
+
+#endif // IGCPARSER_H

src/infoitem.cpp

@@ -7,7 +7,9 @@
 
 InfoItem::InfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
-
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
 }
 
 void InfoItem::updateBoundingRect()
@@ -40,6 +42,9 @@ void InfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	QList<KV>::const_iterator i;
 	int width = 0;
 
+
+	painter->setRenderHint(QPainter::Antialiasing, false);
+
 	for (i = _list.constBegin(); i != _list.constEnd(); i++) {
 		painter->drawText(width, fm.height() - fm.descent(), i->key + ": ");
 		width += fm.width(i->key + ": ");

src/keys.h

@@ -4,26 +4,28 @@
 #include <Qt>
 #include <QKeySequence>
 
-#define NEXT_KEY              Qt::Key_Space
-#define PREV_KEY              Qt::Key_Backspace
-#define FIRST_KEY             Qt::Key_Home
-#define LAST_KEY              Qt::Key_End
-#define MODIFIER              Qt::ShiftModifier
+#define NEXT_KEY                Qt::Key_Space
+#define PREV_KEY                Qt::Key_Backspace
+#define FIRST_KEY               Qt::Key_Home
+#define LAST_KEY                Qt::Key_End
+#define MODIFIER                Qt::ShiftModifier
 
-#define QUIT_SHORTCUT         QKeySequence::Quit
-#define OPEN_SHORTCUT         QKeySequence::Open
-#define CLOSE_SHORTCUT        QKeySequence::Close
-#define RELOAD_SHORTCUT       QKeySequence::Refresh
-#define EXPORT_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_E)
-#define SHOW_POI_SHORTCUT     QKeySequence(Qt::CTRL + Qt::Key_P)
-#define SHOW_MAP_SHORTCUT     QKeySequence(Qt::CTRL + Qt::Key_M)
-#define NEXT_MAP_SHORTCUT     QKeySequence::Forward
-#define PREV_MAP_SHORTCUT     QKeySequence::Back
-#define SHOW_GRAPHS_SHORTCUT  QKeySequence(Qt::CTRL + Qt::Key_G)
+#define QUIT_SHORTCUT           QKeySequence::Quit
+#define OPEN_SHORTCUT           QKeySequence::Open
+#define CLOSE_SHORTCUT          QKeySequence::Close
+#define RELOAD_SHORTCUT         QKeySequence::Refresh
+#define EXPORT_SHORTCUT         QKeySequence(Qt::CTRL + Qt::Key_E)
+#define SHOW_POI_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_P)
+#define SHOW_MAP_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_M)
+#define NEXT_MAP_SHORTCUT       QKeySequence::Forward
+#define PREV_MAP_SHORTCUT       QKeySequence::Back
+#define SHOW_GRAPHS_SHORTCUT    QKeySequence(Qt::CTRL + Qt::Key_G)
+#define DISTANCE_GRAPH_SHORTCUT QKeySequence(Qt::CTRL + Qt::Key_D)
+#define TIME_GRAPH_SHORTCUT     QKeySequence(Qt::CTRL + Qt::Key_T)
 #ifdef Q_OS_MAC
-#define FULLSCREEN_SHORTCUT   QKeySequence(Qt::META + Qt::CTRL + Qt::Key_F)
+#define FULLSCREEN_SHORTCUT     QKeySequence(Qt::META + Qt::CTRL + Qt::Key_F)
 #else // Q_OS_MAC
-#define FULLSCREEN_SHORTCUT   QKeySequence(Qt::Key_F11)
+#define FULLSCREEN_SHORTCUT     QKeySequence(Qt::Key_F11)
 #endif // Q_OS_MAC
 
 #endif // KEYS_H

src/kmlparser.cpp

@@ -0,0 +1,368 @@
+#include "kmlparser.h"
+
+
+qreal KMLParser::number()
+{
+	bool res;
+	qreal ret = _reader.readElementText().toDouble(&res);
+	if (!res)
+		_reader.raiseError(QString("Invalid %1").arg(
+		  _reader.name().toString()));
+
+	return ret;
+}
+
+QDateTime KMLParser::time()
+{
+	QDateTime d = QDateTime::fromString(_reader.readElementText(),
+	  Qt::ISODate);
+	if (!d.isValid())
+		_reader.raiseError(QString("Invalid %1").arg(
+		  _reader.name().toString()));
+
+	return d;
+}
+
+bool KMLParser::coord(Trackpoint &trackpoint)
+{
+	QString data = _reader.readElementText();
+	const QChar *sp, *ep, *cp, *vp;
+	int c = 0;
+	qreal val[3];
+	bool res;
+
+
+	sp = data.constData();
+	ep = sp + data.size();
+
+	for (cp = sp; cp < ep; cp++)
+		if (!cp->isSpace())
+			break;
+
+	for (vp = cp; cp <= ep; cp++) {
+		if (cp->isSpace() || cp->isNull()) {
+			if (c > 2)
+				return false;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+			val[c] = QString(vp, cp - vp).toDouble(&res);
+#else // QT_VERSION < 5
+			val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
+#endif // QT_VERSION < 5
+			if (!res)
+				return false;
+
+			if (c == 1) {
+				trackpoint.setCoordinates(Coordinates(val[0], val[1]));
+				if (!trackpoint.coordinates().isValid())
+					return false;
+			} else if (c == 2)
+				trackpoint.setElevation(val[2]);
+
+			while (cp->isSpace())
+				cp++;
+			vp = cp;
+			c++;
+		}
+	}
+
+	return true;
+}
+
+bool KMLParser::pointCoordinates(Waypoint &waypoint)
+{
+	QString data = _reader.readElementText();
+	const QChar *sp, *ep, *cp, *vp;
+	int c = 0;
+	qreal val[3];
+	bool res;
+
+
+	sp = data.constData();
+	ep = sp + data.size();
+
+	for (cp = sp; cp < ep; cp++)
+		if (!cp->isSpace())
+			break;
+
+	for (vp = cp; cp <= ep; cp++) {
+		if (*cp == ',') {
+			if (c > 1)
+				return false;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+			val[c] = QString(vp, cp - vp).toDouble(&res);
+#else // QT_VERSION < 5
+			val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
+#endif // QT_VERSION < 5
+			if (!res)
+				return false;
+
+			c++;
+			vp = cp + 1;
+		} else if (cp->isSpace() || cp->isNull()) {
+			if (c < 1)
+				return false;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+			val[c] = QString(vp, cp - vp).toDouble(&res);
+#else // QT_VERSION < 5
+			val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
+#endif // QT_VERSION < 5
+			if (!res)
+				return false;
+
+			waypoint.setCoordinates(Coordinates(val[0], val[1]));
+			if (!waypoint.coordinates().isValid())
+				return false;
+			if (c == 2)
+				waypoint.setElevation(val[2]);
+
+			while (cp->isSpace())
+				cp++;
+			c = 3;
+		}
+	}
+
+	return true;
+}
+
+bool KMLParser::lineCoordinates(TrackData &track)
+{
+	QString data = _reader.readElementText();
+	const QChar *sp, *ep, *cp, *vp;
+	int c = 0;
+	qreal val[3];
+	bool res;
+
+
+	sp = data.constData();
+	ep = sp + data.size();
+
+	for (cp = sp; cp < ep; cp++)
+		if (!cp->isSpace())
+			break;
+
+	for (vp = cp; cp <= ep; cp++) {
+		if (*cp == ',') {
+			if (c > 1)
+				return false;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+			val[c] = QString(vp, cp - vp).toDouble(&res);
+#else // QT_VERSION < 5
+			val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
+#endif // QT_VERSION < 5
+			if (!res)
+				return false;
+
+			c++;
+			vp = cp + 1;
+		} else if (cp->isSpace() || cp->isNull()) {
+			if (c < 1 || c > 2)
+				return false;
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+			val[c] = QString(vp, cp - vp).toDouble(&res);
+#else // QT_VERSION < 5
+			val[c] = QStringRef(&data, vp - sp, cp - vp).toDouble(&res);
+#endif // QT_VERSION < 5
+			if (!res)
+				return false;
+
+			track.append(Trackpoint(Coordinates(val[0], val[1])));
+			if (!track.last().coordinates().isValid())
+				return false;
+			if (c == 2)
+				track.last().setElevation(val[2]);
+
+			while (cp->isSpace())
+				cp++;
+			c = 0;
+			vp = cp;
+		}
+	}
+
+ 	return true;
+}
+
+QDateTime KMLParser::timeStamp()
+{
+	QDateTime ts;
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "when")
+			ts = time();
+		else
+			_reader.skipCurrentElement();
+	}
+
+	return ts;
+}
+
+void KMLParser::lineString(TrackData &track)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "coordinates") {
+			if (!lineCoordinates(track))
+				_reader.raiseError("Invalid coordinates");
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::point(Waypoint &waypoint)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "coordinates") {
+			if (!pointCoordinates(waypoint))
+				_reader.raiseError("Invalid coordinates");
+		} else
+			_reader.skipCurrentElement();
+	}
+
+	if (waypoint.coordinates().isNull())
+		_reader.raiseError("Missing Point coordinates");
+}
+
+void KMLParser::track(TrackData &track)
+{
+	const char mismatchError[] = "gx:coord/when element count mismatch";
+	int i = track.size();
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "when") {
+			track.append(Trackpoint());
+			track.last().setTimestamp(time());
+		} else if (_reader.name() == "coord") {
+			if (i == track.size()) {
+				_reader.raiseError(mismatchError);
+				return;
+			} else if (!coord(track[i])) {
+				_reader.raiseError("Invalid coordinates");
+				return;
+			}
+			i++;
+		} else
+			_reader.skipCurrentElement();
+	}
+
+	if (i != track.size())
+		_reader.raiseError(mismatchError);
+}
+
+void KMLParser::multiGeometry(const QString &name, const QString &desc,
+  const QDateTime timestamp)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "Point") {
+			_waypoints.append(Waypoint());
+			Waypoint &w = _waypoints.last();
+			w.setName(name);
+			w.setDescription(desc);
+			w.setTimestamp(timestamp);
+			point(w);
+		} else if (_reader.name() == "LineString") {
+			_tracks.append(TrackData());
+			TrackData &t = _tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			lineString(t);
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::placemark()
+{
+	QString name, desc;
+	QDateTime timestamp;
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "name")
+			name = _reader.readElementText();
+		else if (_reader.name() == "description")
+			desc = _reader.readElementText();
+		else if (_reader.name() == "TimeStamp")
+			timestamp = timeStamp();
+		else if (_reader.name() == "MultiGeometry")
+			multiGeometry(name, desc, timestamp);
+		else if (_reader.name() == "Point") {
+			_waypoints.append(Waypoint());
+			Waypoint &w = _waypoints.last();
+			w.setName(name);
+			w.setDescription(desc);
+			w.setTimestamp(timestamp);
+			point(w);
+		} else if (_reader.name() == "LineString") {
+			_tracks.append(TrackData());
+			TrackData &t = _tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			lineString(t);
+		} else if (_reader.name() == "Track") {
+			_tracks.append(TrackData());
+			TrackData &t = _tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			track(t);
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::folder()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "Placemark")
+			placemark();
+		else if (_reader.name() == "Folder")
+			folder();
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::document()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "Placemark")
+			placemark();
+		else if (_reader.name() == "Folder")
+			folder();
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::kml()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "Document")
+			document();
+		else if (_reader.name() == "Placemark")
+			placemark();
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+bool KMLParser::parse()
+{
+	if (_reader.readNextStartElement()) {
+		if (_reader.name() == "kml")
+			kml();
+		else
+			_reader.raiseError("Not a KML file");
+	}
+
+	return !_reader.error();
+}
+
+bool KMLParser::loadFile(QFile *file)
+{
+	_reader.clear();
+	_reader.setDevice(file);
+
+	return parse();
+}

src/kmlparser.h

@@ -0,0 +1,40 @@
+#ifndef KMLPARSER_H
+#define KMLPARSER_H
+
+#include <QXmlStreamReader>
+#include <QDateTime>
+#include "parser.h"
+
+class KMLParser : public Parser
+{
+public:
+	KMLParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints) {}
+	~KMLParser() {}
+
+	bool loadFile(QFile *file);
+	QString errorString() const {return _reader.errorString();}
+	int errorLine() const {return _reader.lineNumber();}
+
+private:
+	bool parse();
+	void kml();
+	void document();
+	void folder();
+	void placemark();
+	void multiGeometry(const QString &name, const QString &desc,
+	  const QDateTime timestamp);
+	void track(TrackData &track);
+	void lineString(TrackData &track);
+	void point(Waypoint &waypoint);
+	bool pointCoordinates(Waypoint &waypoint);
+	bool lineCoordinates(TrackData &track);
+	bool coord(Trackpoint &trackpoint);
+	QDateTime timeStamp();
+	qreal number();
+	QDateTime time();
+
+	QXmlStreamReader _reader;
+};
+
+#endif // KMLPARSER_H

src/ll.cpp

@@ -1,76 +0,0 @@
-#include <cmath>
-#include "ll.h"
-
-// MSVC workarounds
-#ifndef M_PI
-	#define M_PI 3.14159265358979323846
-#endif // M_PI
-#if defined(_MSC_VER) && (_MSC_VER < 1800)
-	#define log2(n) (log(n)/log(2.0))
-#endif
-
-
-#define WGS84_RADIUS 6378137.0
-#define deg2rad(d) (((d)*M_PI)/180.0)
-#define rad2deg(d) (((d)*180.0)/M_PI)
-
-qreal llDistance(const QPointF &p1, const QPointF &p2)
-{
-	qreal dLat = deg2rad(p2.y() - p1.y());
-	qreal dLon = deg2rad(p2.x() - p1.x());
-	qreal a = pow(sin(dLat / 2.0), 2.0)
-	  + cos(deg2rad(p1.y())) * cos(deg2rad(p2.y())) * pow(sin(dLon / 2.0), 2.0);
-	qreal c = 2.0 * atan2(sqrt(a), sqrt(1.0 - a));
-
-	return (WGS84_RADIUS * c);
-}
-
-QPointF ll2mercator(const QPointF &ll)
-{
-	QPointF m;
-
-	m.setX(ll.x());
-	m.setY(rad2deg(log(tan(M_PI/4.0 + deg2rad(ll.y())/2.0))));
-
-	return m;
-}
-
-QPoint mercator2tile(const QPointF &m, int z)
-{
-	QPoint tile;
-
-	tile.setX((int)(floor((m.x() + 180.0) / 360.0 * pow(2.0, z))));
-	tile.setY((int)(floor((1.0 - (m.y() / 180.0)) / 2.0 * pow(2.0, z))));
-
-	return tile;
-}
-
-QPointF tile2mercator(const QPoint &tile, int z)
-{
-	QPointF m;
-
-	m.setX(tile.x() / pow(2.0, z) * 360.0 - 180);
-	qreal n = M_PI - 2.0 * M_PI * tile.y() / pow(2.0, z);
-	m.setY(rad2deg(atan(0.5 * (exp(n) - exp(-n)))));
-
-	return ll2mercator(m);
-}
-
-int scale2zoom(qreal scale)
-{
-	int zoom;
-
-	zoom = (int)log2(360.0/(scale * (qreal)TILE_SIZE));
-
-	if (zoom < ZOOM_MIN)
-		return ZOOM_MIN;
-	if (zoom > ZOOM_MAX)
-		return ZOOM_MAX;
-	return zoom;
-}
-
-qreal zoom2resolution(int zoom, qreal y)
-{
-	return (WGS84_RADIUS * 2 * M_PI / 256 * cos(2 * atan(exp(deg2rad(y)))
-	  - M_PI/2)) / pow(2.0, zoom);
-}

src/ll.h

@@ -1,17 +0,0 @@
-#ifndef LL_H
-#define LL_H
-
-#include <QPointF>
-
-#define TILE_SIZE 256
-#define ZOOM_MAX 18
-#define ZOOM_MIN 3
-
-QPointF ll2mercator(const QPointF &ll);
-qreal llDistance(const QPointF &p1, const QPointF &p2);
-QPoint mercator2tile(const QPointF &m, int zoom);
-QPointF tile2mercator(const QPoint &tile, int zoom);
-int scale2zoom(qreal scale);
-qreal zoom2resolution(int zoom, qreal y);
-
-#endif // LL_H

src/map.cpp

@@ -1,7 +1,6 @@
 #include <QFileInfo>
 #include <QDir>
 #include "downloader.h"
-#include "ll.h"
 #include "config.h"
 #include "map.h"
 
@@ -42,10 +41,11 @@ void Map::loadTilesAsync(QList<Tile> &list)
 		QString file = tileFile(t);
 		QFileInfo fi(file);
 
-		if (!(fi.exists() && loadTileFile(t, file))) {
+		if (!fi.exists()) {
 			fillTile(t);
 			dl.append(Download(tileUrl(t), file));
-		}
+		} else
+			loadTileFile(t, file);
 	}
 
 	if (!dl.empty())
@@ -61,8 +61,10 @@ void Map::loadTilesSync(QList<Tile> &list)
 		QString file = tileFile(t);
 		QFileInfo fi(file);
 
-		if (!(fi.exists() && loadTileFile(t, file)))
+		if (!fi.exists())
 			dl.append(Download(tileUrl(t), file));
+		else
+			loadTileFile(t, file);
 	}
 
 	if (dl.empty())
@@ -88,7 +90,7 @@ void Map::loadTilesSync(QList<Tile> &list)
 
 void Map::fillTile(Tile &tile)
 {
-	tile.pixmap() = QPixmap(TILE_SIZE, TILE_SIZE);
+	tile.pixmap() = QPixmap(Tile::size(), Tile::size());
 	tile.pixmap().fill();
 }
 

src/map.h

@@ -1,24 +1,7 @@
 #ifndef MAP_H
 #define MAP_H
 
-#include <QPixmap>
-
-class Tile
-{
-public:
-	Tile(const QPoint &xy, int zoom)
-		{_xy = xy; _zoom = zoom;}
-
-	int zoom() const {return _zoom;}
-	const QPoint& xy() const {return _xy;}
-	QPixmap& pixmap() {return _pixmap;}
-
-private:
-	int _zoom;
-	QPoint _xy;
-	QPixmap _pixmap;
-};
-
+#include "tile.h"
 
 class Map : public QObject
 {

src/markeritem.cpp

@@ -2,7 +2,8 @@
 #include "markeritem.h"
 
 
-#define SIZE 8
+#define SIZE  8
+#define WIDTH 2
 
 MarkerItem::MarkerItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
@@ -19,18 +20,11 @@ void MarkerItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option
 {
 	Q_UNUSED(option);
 	Q_UNUSED(widget);
-	bool aa;
 
-
-	if ((aa = painter->testRenderHint(QPainter::Antialiasing)))
-		painter->setRenderHint(QPainter::Antialiasing, false);
-
-	painter->setPen(Qt::red);
+	painter->setRenderHint(QPainter::Antialiasing, false);
+	painter->setPen(QPen(Qt::red, WIDTH));
 	painter->drawLine(-SIZE/2, 0, SIZE/2, 0);
 	painter->drawLine(0, -SIZE/2, 0, SIZE/2);
 
-	if (aa)
-		painter->setRenderHint(QPainter::Antialiasing, true);
-
 //	painter->drawRect(boundingRect());
 }

src/misc.cpp

@@ -1,5 +1,7 @@
 #include <cmath>
-#include "nicenum.h"
+#include <cctype>
+#include "misc.h"
+
 
 double niceNum(double x, int round)
 {
@@ -32,3 +34,17 @@ double niceNum(double x, int round)
 
 	return nf * pow(10.0, expv);
 }
+
+int str2int(const char *str, int len)
+{
+	int res = 0;
+
+	for (const char *sp = str; sp < str + len; sp++) {
+		if (::isdigit(*sp))
+			res = res * 10 + *sp - '0';
+		else
+			return -1;
+	}
+
+	return res;
+}

src/misc.h

@@ -0,0 +1,7 @@
+#ifndef MISC_H
+#define MISC_H
+
+double niceNum(double x, int round);
+int str2int(const char *str, int len);
+
+#endif // MISC_H

src/nicenum.h

@@ -1,6 +0,0 @@
-#ifndef NICENUM_H
-#define NICENUM_H
-
-double niceNum(double x, int round);
-
-#endif // NICENUM_H

src/nmeaparser.cpp

@@ -0,0 +1,527 @@
+#include <cstring>
+#include "misc.h"
+#include "nmeaparser.h"
+
+
+static bool validSentence(const char  *line, int len)
+{
+	const char *lp;
+
+	if (len < 12 || line[0] != '$')
+		return false;
+
+	for (lp = line + len - 1; lp > line + 3; lp--)
+		if (!::isspace(*lp))
+			break;
+	if (*(lp-2) != '*' || !::isalnum(*(lp-1)) || !::isalnum(*(lp)))
+		return false;
+
+	return true;
+}
+
+static bool readFloat(const char *data, int len, qreal &f)
+{
+	bool ok;
+
+	f = QString(QByteArray::fromRawData(data, len)).toFloat(&ok);
+
+	return ok;
+}
+
+bool NMEAParser::readAltitude(const char *data, int len, qreal &ele)
+{
+	if (!len) {
+		ele = NAN;
+		return true;
+	}
+
+	if (!readFloat(data, len, ele)) {
+		_errorString = "Invalid altitude";
+		return false;
+	}
+
+	return true;
+}
+
+bool NMEAParser::readGeoidHeight(const char *data, int len, qreal &gh)
+{
+	if (!len) {
+		gh = 0;
+		return true;
+	}
+
+	if (!readFloat(data, len, gh)) {
+		_errorString = "Invalid geoid height";
+		return false;
+	}
+
+	return true;
+}
+
+bool NMEAParser::readTime(const char *data, int len, QTime &time)
+{
+	int h, m, s, ms = 0;
+
+
+	if (!len) {
+		time = QTime();
+		return true;
+	}
+
+	if (len < 6)
+		goto error;
+
+	h = str2int(data, 2);
+	m = str2int(data + 2, 2);
+	s = str2int(data + 4, 2);
+	if (h < 0 || m < 0 || s < 0)
+		goto error;
+
+	if (len > 7 && data[6] == '.') {
+		if ((ms = str2int(data + 7, len - 7)) < 0)
+			goto error;
+	}
+
+	time = QTime(h, m, s, ms);
+	if (!time.isValid())
+		goto error;
+
+	return true;
+
+error:
+	_errorString = "Invalid time";
+	return false;
+}
+
+bool NMEAParser::readDate(const char *data, int len, QDate &date)
+{
+	int y, m, d;
+
+
+	if (!len) {
+		date = QDate();
+		return true;
+	}
+
+	if (len < 6)
+		goto error;
+
+	d = str2int(data, 2);
+	m = str2int(data + 2, 2);
+	y = str2int(data + 4, len - 4);
+	if (d < 0 || m < 0 || y < 0)
+		goto error;
+
+	if (len - 4 == 2)
+		date = QDate(y + 2000 < QDate::currentDate().year()
+		  ? 2000 + y : 1900 + y, m, d);
+	else
+		date = QDate(y, m, d);
+	if (!date.isValid())
+		goto error;
+
+	return true;
+
+error:
+	_errorString = "Invalid date";
+	return false;
+}
+
+bool NMEAParser::readLat(const char *data, int len, qreal &lat)
+{
+	int d, mi;
+	qreal mf;
+	bool ok;
+
+
+	if (!len) {
+		lat = NAN;
+		return true;
+	}
+
+	if (len < 7 || data[4] != '.')
+		goto error;
+
+	d = str2int(data, 2);
+	mi = str2int(data + 2, 2);
+	mf = QString(QByteArray::fromRawData(data + 4, len - 4)).toFloat(&ok);
+	if (d < 0 || mi < 0 || !ok)
+		goto error;
+
+	lat = d + (((qreal)mi + mf) / 60.0);
+	if (lat > 90)
+		goto error;
+
+	return true;
+
+error:
+	_errorString = "Invalid ltitude";
+	return false;
+}
+
+bool NMEAParser::readNS(const char *data, int len, qreal &lat)
+{
+	if (!len) {
+		lat = NAN;
+		return true;
+	}
+
+	if (len != 1 || !(*data == 'N' || *data == 'S')) {
+		_errorString = "Invalid N/S value";
+		return false;
+	}
+
+	if (*data == 'S')
+		lat = -lat;
+
+	return true;
+}
+
+bool NMEAParser::readLon(const char *data, int len, qreal &lon)
+{
+	int d, mi;
+	qreal mf;
+	bool ok;
+
+
+	if (!len) {
+		lon = NAN;
+		return true;
+	}
+
+	if (len < 8 || data[5] != '.')
+		goto error;
+
+	d = str2int(data, 3);
+	mi = str2int(data + 3, 2);
+	mf = QString(QByteArray::fromRawData(data + 5, len - 5)).toFloat(&ok);
+	if (d < 0 || mi < 0 || !ok)
+		goto error;
+
+	lon = d + (((qreal)mi + mf) / 60.0);
+	if (lon > 180)
+		goto error;
+
+	return true;
+
+error:
+	_errorString = "Invalid longitude";
+	return false;
+}
+
+bool NMEAParser::readEW(const char *data, int len, qreal &lon)
+{
+	if (!len) {
+		lon = NAN;
+		return true;
+	}
+
+	if (len != 1 || !(*data == 'E' || *data == 'W')) {
+		_errorString = "Invalid E/W value";
+		return false;
+	}
+
+	if (*data == 'W')
+		lon = -lon;
+
+	return true;
+}
+
+bool NMEAParser::readRMC(const char *line, int len)
+{
+	int col = 1;
+	const char *vp = line;
+	qreal lat, lon;
+	QTime time;
+	QDate date;
+	bool valid = true;
+
+	for (const char *lp = line; lp < line + len; lp++) {
+		if (*lp == ',' || *lp == '*') {
+			switch (col) {
+				case 1:
+					if (!readTime(vp, lp - vp, time))
+						return false;
+					break;
+				case 2:
+					if (*vp != 'A')
+						valid = false;
+					break;
+				case 3:
+					if (!readLat(vp, lp - vp, lat))
+						return false;
+					break;
+				case 4:
+					if (!readNS(vp, lp - vp, lat))
+						return false;
+					break;
+				case 5:
+					if (!readLon(vp, lp - vp, lon))
+						return false;
+					break;
+				case 6:
+					if (!readEW(vp, lp - vp, lon))
+						return false;
+					break;
+				case 9:
+					if (!readDate(vp, lp - vp, date))
+						return false;
+					break;
+			}
+
+			col++;
+			vp = lp + 1;
+		}
+	}
+
+	if (col < 9) {
+		_errorString = "Invalid RMC sentence";
+		return false;
+	}
+
+	if (!date.isNull()) {
+		if (_date.isNull() && !_time.isNull() && !_tracks.last().isEmpty())
+			_tracks.last().last().setTimestamp(QDateTime(date, _time, Qt::UTC));
+		_date = date;
+	}
+
+	if (valid && !_GGA && !std::isnan(lat) && !std::isnan(lon)) {
+		Trackpoint t(Coordinates(lon, lat));
+		if (!_date.isNull() && !time.isNull())
+			t.setTimestamp(QDateTime(_date, time, Qt::UTC));
+		_tracks.last().append(t);
+	}
+
+	return true;
+}
+
+bool NMEAParser::readGGA(const char *line, int len)
+{
+	int col = 1;
+	const char *vp = line;
+	qreal lat, lon, ele, gh;
+
+	for (const char *lp = line; lp < line + len; lp++) {
+		if (*lp == ',' || *lp == '*') {
+			switch (col) {
+				case 1:
+					if (!readTime(vp, lp - vp, _time))
+						return false;
+					break;
+				case 2:
+					if (!readLat(vp, lp - vp, lat))
+						return false;
+					break;
+				case 3:
+					if (!readNS(vp, lp - vp, lon))
+						return false;
+					break;
+				case 4:
+					if (!readLon(vp, lp - vp, lon))
+						return false;
+					break;
+				case 5:
+					if (!readEW(vp, lp - vp, lon))
+						return false;
+					break;
+				case 9:
+					if (!readAltitude(vp, lp - vp, ele))
+						return false;
+					break;
+				case 10:
+					if ((lp - vp) && !((lp - vp) == 1 && *vp == 'M')) {
+						_errorString = "Invalid altitude units";
+						return false;
+					}
+					break;
+				case 11:
+					if (!readGeoidHeight(vp, lp - vp, gh))
+						return false;
+					break;
+				case 12:
+					if ((lp - vp) && !((lp - vp) == 1 && *vp == 'M')) {
+						_errorString = "Invalid geoid height units";
+						return false;
+					}
+					break;
+			}
+
+			col++;
+			vp = lp + 1;
+		}
+	}
+
+	if (col < 12) {
+		_errorString = "Invalid GGA sentence";
+		return false;
+	}
+
+	if (!std::isnan(lat) && !std::isnan(lon)) {
+		Trackpoint t(Coordinates(lon, lat));
+		if (!(_time.isNull() || _date.isNull()))
+			t.setTimestamp(QDateTime(_date, _time, Qt::UTC));
+		if (!std::isnan(ele))
+			t.setElevation(ele - gh);
+		_tracks.last().append(t);
+
+		_GGA = true;
+	}
+
+	return true;
+}
+
+bool NMEAParser::readWPL(const char *line, int len)
+{
+	int col = 1;
+	const char *vp = line;
+	qreal lat, lon;
+	QString name;
+
+	for (const char *lp = line; lp < line + len; lp++) {
+		if (*lp == ',' || *lp == '*') {
+			switch (col) {
+				case 1:
+					if (!readLat(vp, lp - vp, lat))
+						return false;
+					break;
+				case 2:
+					if (!readNS(vp, lp - vp, lat))
+						return false;
+					break;
+				case 3:
+					if (!readLon(vp, lp - vp, lon))
+						return false;
+					break;
+				case 4:
+					if (!readEW(vp, lp - vp, lon))
+						return false;
+					break;
+				case 5:
+					name = QString(QByteArray(vp, lp - vp));
+					break;
+			}
+
+			col++;
+			vp = lp + 1;
+		}
+	}
+
+	if (col < 4) {
+		_errorString = "Invalid WPL sentence";
+		return false;
+	}
+
+	if (!std::isnan(lat) && !std::isnan(lon)) {
+		Waypoint w(Coordinates(lon, lat));
+		w.setName(name);
+		_waypoints.append(w);
+	}
+
+	return true;
+}
+
+bool NMEAParser::readZDA(const char *line, int len)
+{
+	int col = 1;
+	const char *vp = line;
+	int d, m, y;
+
+	for (const char *lp = line; lp < line + len; lp++) {
+		if (*lp == ',' || *lp == '*') {
+			switch (col) {
+				case 2:
+					if (!(lp - vp))
+						return true;
+					if ((d = str2int(vp, lp - vp)) < 0) {
+						_errorString = "Invalid day";
+						return false;
+					}
+					break;
+				case 3:
+					if (!(lp - vp))
+						return true;
+					if ((m = str2int(vp, lp - vp)) < 0) {
+						_errorString = "Invalid month";
+						return false;
+					}
+					break;
+				case 4:
+					if (!(lp - vp))
+						return true;
+					if ((y = str2int(vp, lp - vp)) < 0) {
+						_errorString = "Invalid year";
+						return false;
+					}
+					break;
+			}
+
+			col++;
+			vp = lp + 1;
+		}
+	}
+
+	if (col < 4) {
+		_errorString = "Invalid ZDA sentence";
+		return false;
+	}
+
+	_date = QDate(y, m, d);
+	if (!_date.isValid()) {
+		_errorString = "Invalid date";
+		return false;
+	}
+
+	return true;
+}
+
+bool NMEAParser::loadFile(QFile *file)
+{
+	qint64 len;
+	char line[80 + 2 + 1 + 1];
+
+
+	_errorLine = 1;
+	_errorString.clear();
+	_date = QDate();
+	_time = QTime();
+	_GGA = false;
+
+	_tracks.append(TrackData());
+
+	while (!file->atEnd()) {
+		len = file->readLine(line, sizeof(line));
+
+		if (len < 0) {
+			_errorString = "I/O error";
+			return false;
+		} else if (len > (qint64)sizeof(line) - 1) {
+			_errorString = "Line limit exceeded";
+			return false;
+		}
+
+		if (validSentence(line, len)) {
+			if (!memcmp(line + 3, "RMC,", 4)) {
+				if (!readRMC(line + 7, len))
+					return false;
+			} else if (!memcmp(line + 3, "GGA,", 4)) {
+				if (!readGGA(line + 7, len))
+					return false;
+			} else if (!memcmp(line + 3, "WPL,", 4)) {
+				if (!readWPL(line + 7, len))
+					return false;
+			} else if (!memcmp(line + 3, "ZDA,", 4)) {
+				if (!readZDA(line + 7, len))
+					return false;
+			}
+		}
+
+		_errorLine++;
+	}
+
+	if (!_tracks.last().size() && !_waypoints.size()) {
+		_errorString = "No usable NMEA sentence found";
+		return false;
+	}
+
+	return true;
+}

src/nmeaparser.h

@@ -0,0 +1,43 @@
+#ifndef NMEAPARSER_H
+#define NMEAPARSER_H
+
+#include <QDate>
+#include "parser.h"
+
+
+class NMEAParser : public Parser
+{
+public:
+	NMEAParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
+	  {_errorLine = 0; _GGA = false;}
+	~NMEAParser() {}
+
+	bool loadFile(QFile *file);
+	QString errorString() const {return _errorString;}
+	int errorLine() const {return _errorLine;}
+
+private:
+	bool readEW(const char *data, int len, qreal &lon);
+	bool readLon(const char *data, int len, qreal &lon);
+	bool readNS(const char *data, int len, qreal &lat);
+	bool readLat(const char *data, int len, qreal &lat);
+	bool readDate(const char *data, int len, QDate &date);
+	bool readTime(const char *data, int len, QTime &time);
+	bool readAltitude(const char *data, int len, qreal &ele);
+	bool readGeoidHeight(const char *data, int len, qreal &gh);
+
+	bool readRMC(const char *line, int len);
+	bool readGGA(const char *line, int len);
+	bool readWPL(const char *line, int len);
+	bool readZDA(const char *line, int len);
+
+	int _errorLine;
+	QString _errorString;
+
+	QDate _date;
+	QTime _time;
+	bool _GGA;
+};
+
+#endif // NMEAPARSER_H

src/optionsdialog.cpp

@@ -0,0 +1,238 @@
+#include <QVBoxLayout>
+#include <QFormLayout>
+#include <QDialogButtonBox>
+#include <QListWidget>
+#include <QListWidgetItem>
+#include <QStackedWidget>
+#include <QTabWidget>
+#include <QSpinBox>
+#include <QGroupBox>
+#include <QCheckBox>
+#include <QComboBox>
+#include <QSysInfo>
+#include "config.h"
+#include "icons.h"
+#include "colorbox.h"
+#include "stylecombobox.h"
+#include "optionsdialog.h"
+
+#define MENU_MARGIN 20
+#define MENU_ICON_SIZE 32
+
+
+QWidget *OptionsDialog::createAppearancePage()
+{
+	_baseColor = new ColorBox();
+	_baseColor->setColor(_options->palette.color());
+	_colorOffset = new QDoubleSpinBox();
+	_colorOffset->setMinimum(0);
+	_colorOffset->setMaximum(1.0);
+	_colorOffset->setSingleStep(0.01);
+	_colorOffset->setValue(_options->palette.shift());
+
+	QFormLayout *paletteLayout = new QFormLayout();
+	paletteLayout->addRow(tr("Base color:"), _baseColor);
+	paletteLayout->addRow(tr("Palette shift:"), _colorOffset);
+
+	QWidget *colorTab = new QWidget();
+	colorTab->setLayout(paletteLayout);
+
+
+	_trackWidth = new QSpinBox();
+	_trackWidth->setValue(_options->trackWidth);
+	_trackWidth->setMinimum(1);
+	_trackStyle = new StyleComboBox();
+	_trackStyle->setValue(_options->trackStyle);
+	QFormLayout *trackLayout = new QFormLayout();
+	trackLayout->addRow(tr("Track width:"), _trackWidth);
+	trackLayout->addRow(tr("Track style:"), _trackStyle);
+#ifndef Q_OS_MAC
+	QGroupBox *trackBox = new QGroupBox(tr("Tracks"));
+	trackBox->setLayout(trackLayout);
+#endif
+
+	_routeWidth = new QSpinBox();
+	_routeWidth->setValue(_options->routeWidth);
+	_routeWidth->setMinimum(1);
+	_routeStyle = new StyleComboBox();
+	_routeStyle->setValue(_options->routeStyle);
+	QFormLayout *routeLayout = new QFormLayout();
+	routeLayout->addRow(tr("Route width:"), _routeWidth);
+	routeLayout->addRow(tr("Route style:"), _routeStyle);
+#ifndef Q_OS_MAC
+	QGroupBox *routeBox = new QGroupBox(tr("Routes"));
+	routeBox->setLayout(routeLayout);
+#endif // Q_OS_MAC
+
+	_pathAA = new QCheckBox(tr("Use anti-aliasing"));
+	_pathAA->setChecked(_options->pathAntiAliasing);
+	QFormLayout *pathAALayout = new QFormLayout();
+	pathAALayout->addWidget(_pathAA);
+
+	QWidget *pathTab = new QWidget();
+	QVBoxLayout *pathTabLayout = new QVBoxLayout();
+#ifdef Q_OS_MAC
+	QFrame *l1 = new QFrame();
+	l1->setFrameShape(QFrame::HLine);
+	l1->setFrameShadow(QFrame::Sunken);
+	QFrame *l2 = new QFrame();
+	l2->setFrameShape(QFrame::HLine);
+	l2->setFrameShadow(QFrame::Sunken);
+
+	pathTabLayout->addLayout(trackLayout);
+	pathTabLayout->addWidget(l1);
+	pathTabLayout->addLayout(routeLayout);
+	pathTabLayout->addWidget(l2);
+#else
+	pathTabLayout->addWidget(trackBox);
+	pathTabLayout->addWidget(routeBox);
+#endif
+	pathTabLayout->addLayout(pathAALayout);
+	pathTab->setLayout(pathTabLayout);
+
+	_graphWidth = new QSpinBox();
+	_graphWidth->setValue(_options->graphWidth);
+	_graphWidth->setMinimum(1);
+	QFormLayout *graphLayout = new QFormLayout();
+	graphLayout->addRow(tr("Line width:"), _graphWidth);
+
+	_graphAA = new QCheckBox(tr("Use anti-aliasing"));
+	_graphAA->setChecked(_options->graphAntiAliasing);
+	QFormLayout *graphAALayout = new QFormLayout();
+	graphAALayout->addWidget(_graphAA);
+
+
+	QWidget *graphTab = new QWidget();
+	QVBoxLayout *graphTabLayout = new QVBoxLayout();
+	graphTabLayout->addLayout(graphLayout);
+	graphTabLayout->addLayout(graphAALayout);
+	graphTabLayout->addStretch();
+	graphTab->setLayout(graphTabLayout);
+
+	QTabWidget *appearancePage = new QTabWidget();
+	appearancePage->addTab(colorTab, tr("Colors"));
+	appearancePage->addTab(pathTab, tr("Paths"));
+	appearancePage->addTab(graphTab, tr("Graphs"));
+
+	return appearancePage;
+}
+
+QWidget *OptionsDialog::createPOIPage()
+{
+	_poiRadius = new QDoubleSpinBox();
+	_poiRadius->setSingleStep(1);
+	_poiRadius->setDecimals(1);
+	if (_options->units == Imperial) {
+		_poiRadius->setValue(_options->poiRadius / MIINM);
+		_poiRadius->setSuffix(UNIT_SPACE + tr("mi"));
+	} else {
+		_poiRadius->setValue(_options->poiRadius / KMINM);
+		_poiRadius->setSuffix(UNIT_SPACE + tr("km"));
+	}
+
+	QFormLayout *poiLayout = new QFormLayout();
+	poiLayout->addRow(tr("POI radius:"), _poiRadius);
+
+	QWidget *poiTab = new QWidget();
+	poiTab->setLayout(poiLayout);
+
+	QTabWidget *poiPage = new QTabWidget();
+	poiPage->addTab(poiTab, tr("POI"));
+
+	return poiPage;
+}
+
+QWidget *OptionsDialog::createSystemPage()
+{
+	_useOpenGL = new QCheckBox(tr("Use OpenGL"));
+#if defined(Q_OS_WIN32) || defined(Q_OS_MAC)
+#ifdef Q_OS_WIN32
+	if (QSysInfo::WindowsVersion < QSysInfo::WV_VISTA) {
+#endif // Q_OS_WIN32
+		_useOpenGL->setChecked(false);
+		_useOpenGL->setEnabled(false);
+#ifdef Q_OS_WIN32
+	} else
+#endif // Q_OS_WIN32
+#endif // Q_OS_WIN32 || Q_OS_MAC
+	_useOpenGL->setChecked(_options->useOpenGL);
+
+	QFormLayout *systemLayout = new QFormLayout();
+	systemLayout->addWidget(_useOpenGL);
+
+	QWidget *systemTab = new QWidget();
+	systemTab->setLayout(systemLayout);
+
+	QTabWidget *systemPage = new QTabWidget();
+	systemPage->addTab(systemTab, tr("System"));
+
+	return systemPage;
+}
+
+OptionsDialog::OptionsDialog(Options *options, QWidget *parent)
+  : QDialog(parent), _options(options)
+{
+	QStackedWidget *pages = new QStackedWidget();
+	pages->addWidget(createAppearancePage());
+	pages->addWidget(createPOIPage());
+	pages->addWidget(createSystemPage());
+
+	QListWidget *menu = new QListWidget();
+	menu->setIconSize(QSize(MENU_ICON_SIZE, MENU_ICON_SIZE));
+	new QListWidgetItem(QIcon(QPixmap(APPEARANCE_ICON)), tr("Appearance"),
+	  menu);
+	new QListWidgetItem(QIcon(QPixmap(POI_ICON)), tr("POI"), menu);
+	new QListWidgetItem(QIcon(QPixmap(SYSTEM_ICON)), tr("System"), menu);
+
+	QHBoxLayout *contentLayout = new QHBoxLayout();
+	contentLayout->addWidget(menu);
+	contentLayout->addWidget(pages);
+
+	menu->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
+	menu->setMaximumWidth(menu->sizeHintForColumn(0) + 2 * menu->frameWidth()
+	  + MENU_MARGIN);
+	pages->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
+	pages->setMinimumWidth(2 * menu->size().width());
+
+	connect(menu, SIGNAL(currentRowChanged(int)), pages,
+	  SLOT(setCurrentIndex(int)));
+	menu->item(0)->setSelected(true);
+
+
+	QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
+	  | QDialogButtonBox::Cancel);
+	connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
+	connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+
+	QVBoxLayout *layout = new QVBoxLayout;
+	layout->addLayout(contentLayout);
+	layout->addWidget(buttonBox);
+	setLayout(layout);
+
+	setWindowTitle(tr("Options"));
+	setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+}
+
+void OptionsDialog::accept()
+{
+	_options->palette.setColor(_baseColor->color());
+	_options->palette.setShift(_colorOffset->value());
+	_options->trackWidth = _trackWidth->value();
+	_options->trackStyle = (Qt::PenStyle) _trackStyle->itemData(
+	  _trackStyle->currentIndex()).toInt();
+	_options->routeWidth = _routeWidth->value();
+	_options->routeStyle = (Qt::PenStyle) _routeStyle->itemData(
+	  _routeStyle->currentIndex()).toInt();
+	_options->pathAntiAliasing = _pathAA->isChecked();
+	_options->graphWidth = _graphWidth->value();
+	_options->graphAntiAliasing = _graphAA->isChecked();
+
+	if (_options->units == Imperial)
+		_options->poiRadius = _poiRadius->value() * MIINM;
+	else
+		_options->poiRadius = _poiRadius->value() * KMINM;
+
+	_options->useOpenGL = _useOpenGL->isChecked();
+
+	QDialog::accept();
+}

src/optionsdialog.h

@@ -0,0 +1,63 @@
+#ifndef OPTIONSDIALOG_H
+#define OPTIONSDIALOG_H
+
+#include <QDialog>
+#include "palette.h"
+#include "units.h"
+
+class ColorBox;
+class StyleComboBox;
+class QSpinBox;
+class QDoubleSpinBox;
+class QComboBox;
+class QCheckBox;
+
+struct Options {
+	// Appearance
+	Palette palette;
+	int trackWidth;
+	int routeWidth;
+	Qt::PenStyle trackStyle;
+	Qt::PenStyle routeStyle;
+	int graphWidth;
+	bool pathAntiAliasing;
+	bool graphAntiAliasing;
+	// POI
+	int poiRadius;
+	// System
+	bool useOpenGL;
+
+	Units units;
+};
+
+class OptionsDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	OptionsDialog(Options *options, QWidget *parent = 0);
+
+public slots:
+	void accept();
+
+private:
+	QWidget *createAppearancePage();
+	QWidget *createPOIPage();
+	QWidget *createSystemPage();
+
+	Options *_options;
+
+	ColorBox *_baseColor;
+	QDoubleSpinBox *_colorOffset;
+	QSpinBox *_trackWidth;
+	StyleComboBox *_trackStyle;
+	QSpinBox *_routeWidth;
+	StyleComboBox *_routeStyle;
+	QCheckBox *_pathAA;
+	QSpinBox *_graphWidth;
+	QCheckBox *_graphAA;
+	QDoubleSpinBox *_poiRadius;
+	QCheckBox *_useOpenGL;
+};
+
+#endif // OPTIONSDIALOG_H

src/palette.cpp

@@ -1,62 +1,46 @@
 #include "palette.h"
 
-
-#define HUE_INIT		0.1f
-#define HUE_INCREMENT	0.62f
-#define SATURATION		0.99f
-#define VALUE			0.99f
-
-static unsigned hsv2rgb(float h, float s, float v)
+Palette::Palette(const QColor &color, qreal shift)
 {
-	unsigned hi;
-	float r = 0, g = 0, b = 0, p, q, t, f;
+	_h = 0; _s = 0; _v = 0; _a = 1.0;
 
-	hi = (unsigned)(h * 6.0f);
-	f = h * 6.0f - hi;
-	p = v * (1.0f - s);
-	q = v * (1.0f - f * s);
-	t = v * (1.0f - (1.0f - f) * s);
+	setColor(color);
+	setShift(shift);
 
-	switch (hi) {
-		case 0:
-			r = v; g = t; b = p;
-			break;
-		case 1:
-			r = q; g = v; b = p;
-			break;
-		case 2:
-			r = p; g = v; b = t;
-			break;
-		case 3:
-			r = p; g = q; b = v;
-			break;
-		case 4:
-			r = t; g = p; b = v;
-			break;
-		case 5:
-			r = v; g = p; b = q;
-			break;
-	}
-
-	return ((unsigned)(r * 256) << 16)
-	  + ((unsigned)(g * 256) << 8)
-	  + (unsigned)(b * 256);
+	_state = _h;
 }
 
-Palette::Palette()
+void Palette::setColor(const QColor &color)
 {
-	_hueState = HUE_INIT;
+	if (color.isValid())
+		color.getHsvF(&_h, &_s, &_v, &_a);
 }
 
-QColor Palette::color()
+void Palette::setShift(qreal shift)
 {
-	_hueState += HUE_INCREMENT;
-	_hueState -= (int) _hueState;
+	if (shift >= 0 && shift <= 1.0)
+		_shift = shift;
+}
 
-	return QColor(hsv2rgb(_hueState, SATURATION, VALUE));
+QColor Palette::nextColor()
+{
+	QColor ret = QColor::fromHsvF(_state, _s, _v, _a);
+
+	_state += _shift;
+	_state -= (int) _state;
+
+	return ret;
 }
 
 void Palette::reset()
 {
-	_hueState = HUE_INIT;
+	_state = _h;
+}
+
+QDebug operator<<(QDebug dbg, const Palette &palette)
+{
+	dbg.nospace() << "Palette(" << palette.color() << ", " << palette.shift()
+	  << ")";
+
+	return dbg.maybeSpace();
 }

src/palette.h

@@ -2,16 +2,32 @@
 #define PALETTE_H
 
 #include <QColor>
+#include <QDebug>
 
 class Palette
 {
 public:
-	Palette();
-	QColor color();
+	Palette(const QColor &color = Qt::blue, qreal shift = 0.62);
+
+	QColor color() const {return QColor::fromHsvF(_h, _s, _v, _a).toRgb();}
+	qreal shift() const {return _shift;}
+	void setColor(const QColor &color);
+	void setShift(qreal shift);
+
+	QColor nextColor();
 	void reset();
 
+	bool operator==(const Palette &other) const
+	  {return (_h == other._h && _s == other._s && _v == other._v
+	  && _a == other._a && _shift == other._shift);}
+	bool operator!=(const Palette &other) const
+	  {return !(*this == other);}
+
 private:
-	float _hueState;
+	qreal _h, _s, _v, _a, _shift;
+	qreal _state;
 };
 
+QDebug operator<<(QDebug dbg, const Palette &palette);
+
 #endif // PALLETE_H

src/parser.cpp

@@ -1,144 +0,0 @@
-#include "parser.h"
-
-
-void Parser::handleExtensionData(QStringRef element, const QString &value)
-{
-	if (element == "speed")
-		_track->last().speed = value.toDouble();
-	else if (element == "hr" || element == "heartrate")
-		_track->last().heartRate = value.toDouble();
-}
-
-void Parser::handleTrekPointData(QStringRef element, const QString &value)
-{
-	if (element == "ele")
-		_track->last().elevation = value.toLatin1().toDouble();
-	else if (element == "time")
-		_track->last().timestamp = QDateTime::fromString(value.toLatin1(),
-		  Qt::ISODate);
-	else if (element == "geoidheight")
-		_track->last().geoidheight = value.toLatin1().toDouble();
-}
-
-void Parser::handleWayPointData(QStringRef element, const QString &value)
-{
-	if (element == "name")
-		_waypoints.last().setDescription(value);
-}
-
-void Parser::handleTrekPointAttributes(const QXmlStreamAttributes &attr)
-{
-	_track->last().coordinates.setY(attr.value("lat").toLatin1().toDouble());
-	_track->last().coordinates.setX(attr.value("lon").toLatin1().toDouble());
-}
-
-void Parser::handleWayPointAttributes(const QXmlStreamAttributes &attr)
-{
-	_waypoints.last().setCoordinates(QPointF(
-	  attr.value("lon").toLatin1().toDouble(),
-	  attr.value("lat").toLatin1().toDouble()));
-}
-
-void Parser::tpExtension()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "hr")
-			handleExtensionData(_reader.name(), _reader.readElementText());
-		else
-			_reader.skipCurrentElement();
-	}
-}
-
-void Parser::extensions()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "speed" || _reader.name() == "hr"
-		  || _reader.name() == "heartrate")
-			handleExtensionData(_reader.name(), _reader.readElementText());
-		else if (_reader.name() == "TrackPointExtension")
-			tpExtension();
-		else
-			_reader.skipCurrentElement();
-	}
-}
-
-void Parser::trackPointData()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "ele" || _reader.name() == "time"
-		  || _reader.name() == "geoidheight")
-			handleTrekPointData(_reader.name(), _reader.readElementText());
-		else if (_reader.name() == "extensions")
-			extensions();
-		else
-			_reader.skipCurrentElement();
-	}
-}
-
-void Parser::trackPoints()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "trkpt") {
-			_track->append(Trackpoint());
-			handleTrekPointAttributes(_reader.attributes());
-			trackPointData();
-		} else
-			_reader.skipCurrentElement();
-	}
-}
-
-void Parser::track()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "trkseg") {
-			trackPoints();
-		} else
-			_reader.skipCurrentElement();
-	}
-}
-
-void Parser::wayPointData()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "name")
-			handleWayPointData(_reader.name(), _reader.readElementText());
-		else
-			_reader.skipCurrentElement();
-	}
-}
-
-void Parser::gpx()
-{
-	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "trk") {
-			_tracks.append(QVector<Trackpoint>());
-			_track = &_tracks.back();
-			track();
-		} else if (_reader.name() == "wpt") {
-			_waypoints.append(Waypoint());
-			handleWayPointAttributes(_reader.attributes());
-			wayPointData();
-		} else
-			_reader.skipCurrentElement();
-	}
-}
-
-bool Parser::parse()
-{
-	if (_reader.readNextStartElement()) {
-		if (_reader.name() == "gpx")
-			gpx();
-		else
-			_reader.raiseError("Not a GPX file.");
-	}
-
-	return !_reader.error();
-}
-
-bool Parser::loadFile(QIODevice *device)
-{
-	_reader.clear();
-	_reader.setDevice(device);
-
-	return parse();
-}

src/parser.h

@@ -1,42 +1,30 @@
 #ifndef PARSER_H
 #define PARSER_H
 
-#include <QXmlStreamReader>
-#include <QVector>
+#include <QString>
 #include <QList>
-#include "trackpoint.h"
+#include <QFile>
+#include "trackdata.h"
+#include "routedata.h"
 #include "waypoint.h"
 
 
 class Parser
 {
 public:
-	Parser(QList<QVector<Trackpoint> > &tracks, QList<Waypoint> &waypoints)
-	  : _tracks(tracks), _waypoints(waypoints) {_track = 0;}
-	bool loadFile(QIODevice *device);
-	QString errorString() const {return _reader.errorString();}
-	int errorLine() const {return _reader.lineNumber();}
+	Parser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints) : _tracks(tracks), _routes(routes),
+	  _waypoints(waypoints) {}
+	virtual ~Parser() {}
 
-private:
-	bool parse();
-	void gpx();
-	void track();
-	void trackPoints();
-	void tpExtension();
-	void extensions();
-	void trackPointData();
-	void wayPointData();
+	virtual bool loadFile(QFile *file) = 0;
+	virtual QString errorString() const = 0;
+	virtual int errorLine() const = 0;
 
-	void handleWayPointAttributes(const QXmlStreamAttributes &attr);
-	void handleWayPointData(QStringRef element, const QString &value);
-	void handleTrekPointAttributes(const QXmlStreamAttributes &attr);
-	void handleTrekPointData(QStringRef element, const QString &value);
-	void handleExtensionData(QStringRef element, const QString &value);
-
-	QXmlStreamReader _reader;
-	QList<QVector<Trackpoint> > &_tracks;
+protected:
+	QList<TrackData> &_tracks;
+	QList<RouteData> &_routes;
 	QList<Waypoint> &_waypoints;
-	QVector<Trackpoint> *_track;
 };
 
 #endif // PARSER_H

src/path.cpp

@@ -0,0 +1,9 @@
+#include "path.h"
+
+QDebug operator<<(QDebug dbg, const PathPoint &point)
+{
+	dbg.nospace() << "PathPoint(" << point.distance() << ", "
+	  << point.coordinates() << ")";
+
+	return dbg.maybeSpace();
+}

src/path.h

@@ -0,0 +1,28 @@
+#ifndef PATH_H
+#define PATH_H
+
+#include <QVector>
+#include "coordinates.h"
+
+class PathPoint
+{
+public:
+	PathPoint() :
+	  _coordinates(Coordinates()), _distance(NAN) {}
+	PathPoint(const Coordinates &coordinates, qreal distance)
+	  : _coordinates(coordinates), _distance(distance) {}
+
+	const Coordinates &coordinates() const {return _coordinates;}
+	qreal distance() const {return _distance;}
+
+private:
+	Coordinates _coordinates;
+	qreal _distance;
+};
+
+Q_DECLARE_TYPEINFO(PathPoint, Q_PRIMITIVE_TYPE);
+QDebug operator<<(QDebug dbg, const PathPoint &point);
+
+typedef QVector<PathPoint> Path;
+
+#endif // PATH_H

src/pathitem.cpp

@@ -0,0 +1,149 @@
+#include <cmath>
+#include <QApplication>
+#include <QCursor>
+#include <QPainter>
+#include "tooltip.h"
+#include "pathitem.h"
+
+
+void PathItem::updateShape()
+{
+	QPainterPathStroker s;
+	s.setWidth((_width + 1) * 1.0/scale());
+	_shape = s.createStroke(_path);
+}
+
+PathItem::PathItem(QGraphicsItem *parent) : QGraphicsObject(parent)
+{
+	_width = 3;
+
+	QBrush brush(Qt::SolidPattern);
+	_pen = QPen(brush, _width);
+
+	_units = Metric;
+
+	_marker = new MarkerItem(this);
+
+	setCursor(Qt::ArrowCursor);
+	setAcceptHoverEvents(true);
+}
+
+void PathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+
+	painter->setPen(_pen);
+	painter->drawPath(_path);
+
+/*
+	QPen p = QPen(QBrush(Qt::red), 0);
+	painter->setPen(p);
+	painter->drawRect(boundingRect());
+*/
+}
+
+void PathItem::setScale(qreal scale)
+{
+	prepareGeometryChange();
+
+	_pen.setWidthF(_width * 1.0/scale);
+	QGraphicsItem::setScale(scale);
+	_marker->setScale(1.0/scale);
+
+	updateShape();
+}
+
+void PathItem::setColor(const QColor &color)
+{
+	_pen.setColor(color);
+	update();
+}
+
+void PathItem::setWidth(int width)
+{
+	prepareGeometryChange();
+
+	_width = width;
+	_pen.setWidthF(_width * 1.0/scale());
+
+	updateShape();
+}
+
+void PathItem::setStyle(Qt::PenStyle style)
+{
+	_pen.setStyle(style);
+	update();
+}
+
+void PathItem::setUnits(enum Units units)
+{
+	_units = units;
+}
+
+QPointF PathItem::position(qreal x) const
+{
+	int low = 0;
+	int high = _distance.count() - 1;
+	int mid = 0;
+
+
+	Q_ASSERT(_distance.count() == _path.elementCount());
+	Q_ASSERT(high > low);
+	Q_ASSERT(x >= _distance.at(low) && x <= _distance.at(high));
+
+	while (low <= high) {
+		mid = low + ((high - low) / 2);
+		qreal val = _distance.at(mid);
+		if (val > x)
+			high = mid - 1;
+		else if (val < x)
+			low = mid + 1;
+		else
+			return _path.elementAt(mid);
+	}
+
+	QLineF l;
+	qreal p1, p2;
+	if (_distance.at(mid) < x) {
+		l = QLineF(_path.elementAt(mid), _path.elementAt(mid+1));
+		p1 = _distance.at(mid); p2 = _distance.at(mid+1);
+	} else {
+		l = QLineF(_path.elementAt(mid-1), _path.elementAt(mid));
+		p1 = _distance.at(mid-1); p2 = _distance.at(mid);
+	}
+
+	return l.pointAt((x - p1) / (p2 - p1));
+}
+
+void PathItem::moveMarker(qreal distance)
+{
+	if (distance >= _distance.first() && distance <= _distance.last()) {
+		_marker->setVisible(true);
+		_marker->setPos(position(distance));
+	} else
+		_marker->setVisible(false);
+}
+
+void PathItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+	Q_UNUSED(event);
+
+	_pen.setWidthF((_width + 1) * 1.0/scale());
+	setZValue(zValue() + 1.0);
+	update();
+
+	emit selected(true);
+}
+
+void PathItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+	Q_UNUSED(event);
+
+	_pen.setWidthF(_width * 1.0/scale());
+	setZValue(zValue() - 1.0);
+	update();
+
+	emit selected(false);
+}

src/pathitem.h

@@ -0,0 +1,55 @@
+#ifndef PATHITEM_H
+#define PATHITEM_H
+
+#include <QGraphicsObject>
+#include <QPen>
+#include "markeritem.h"
+#include "units.h"
+
+
+class PathItem : public QGraphicsObject
+{
+	Q_OBJECT
+
+public:
+	PathItem(QGraphicsItem *parent = 0);
+
+	QPainterPath shape() const {return _shape;}
+	QRectF boundingRect() const {return _shape.boundingRect();}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	const QPainterPath &path() const {return _path;}
+	void showMarker(bool show) {_marker->setVisible(show);}
+	void setScale(qreal scale);
+	void setUnits(enum Units units);
+	void setColor(const QColor &color);
+	void setWidth(int width);
+	void setStyle(Qt::PenStyle style);
+
+public slots:
+	void moveMarker(qreal distance);
+
+signals:
+	void selected(bool);
+
+protected:
+	void updateShape();
+
+	QVector<qreal> _distance;
+	QPainterPath _path;
+	MarkerItem *_marker;
+	Units _units;
+
+private:
+	QPointF position(qreal distance) const;
+
+	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+
+	int _width;
+	QPen _pen;
+	QPainterPath _shape;
+};
+
+#endif // PATHITEM_H

src/pathview.cpp

@@ -0,0 +1,726 @@
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include <QWheelEvent>
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+#include <QGLWidget>
+#else // QT 5
+#include <QOpenGLWidget>
+#endif // QT 5
+#include <QSysInfo>
+#include "rd.h"
+#include "poi.h"
+#include "data.h"
+#include "map.h"
+#include "trackitem.h"
+#include "routeitem.h"
+#include "waypointitem.h"
+#include "scaleitem.h"
+#include "pathview.h"
+
+
+#define ZOOM_MAX      18
+#define ZOOM_MIN      3
+#define MARGIN        10.0
+#define SCALE_OFFSET  7
+
+static QPoint mercator2tile(const QPointF &m, int z)
+{
+	QPoint tile;
+
+	tile.setX((int)(floor((m.x() + 180.0) / 360.0 * pow(2.0, z))));
+	tile.setY((int)(floor((1.0 - (m.y() / 180.0)) / 2.0 * pow(2.0, z))));
+
+	return tile;
+}
+
+static QPointF tile2mercator(const QPoint &tile, int z)
+{
+	Coordinates m;
+
+	m.setLon(tile.x() / pow(2.0, z) * 360.0 - 180);
+	qreal n = M_PI - 2.0 * M_PI * tile.y() / pow(2.0, z);
+	m.setLat(rad2deg(atan(0.5 * (exp(n) - exp(-n)))));
+
+	return m.toMercator();
+}
+
+static int scale2zoom(qreal scale)
+{
+	int zoom = (int)log2(360.0/(scale * (qreal)Tile::size()));
+
+	if (zoom < ZOOM_MIN)
+		return ZOOM_MIN;
+	if (zoom > ZOOM_MAX)
+		return ZOOM_MAX;
+
+	return zoom;
+}
+
+qreal mapScale(int zoom)
+{
+	return ((360.0/(qreal)(1<<zoom))/(qreal)Tile::size());
+}
+
+static QRectF qrectf(const QPointF &p1, const QPointF &p2)
+{
+	return QRectF(QPointF(qMin(p1.x(), p2.x()), qMin(p1.y(), p2.y())),
+	  QPointF(qMax(p1.x(), p2.x()), qMax(p1.y(), p2.y())));
+}
+
+static void unite(QRectF &rect, const QPointF &p)
+{
+	if (p.x() < rect.left())
+		rect.setLeft(p.x());
+	if (p.x() > rect.right())
+		rect.setRight(p.x());
+	if (p.y() > rect.bottom())
+		rect.setBottom(p.y());
+	if (p.y() < rect.top())
+		rect.setTop(p.y());
+}
+
+static QRectF scaled(const QRectF &rect, qreal factor)
+{
+	return QRectF(QPointF(rect.left() * factor, rect.top() * factor),
+	  QSizeF(rect.width() * factor, rect.height() * factor));
+}
+
+
+PathView::PathView(QWidget *parent)
+	: QGraphicsView(parent)
+{
+	_scene = new QGraphicsScene(this);
+	setScene(_scene);
+	setCacheMode(QGraphicsView::CacheBackground);
+	setDragMode(QGraphicsView::ScrollHandDrag);
+	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setRenderHint(QPainter::Antialiasing, true);
+	setAcceptDrops(false);
+
+	_mapScale = new ScaleItem();
+	_mapScale->setZValue(2.0);
+
+	_zoom = ZOOM_MAX;
+	_map = 0;
+	_poi = 0;
+
+	_units = Metric;
+
+	_showTracks = true;
+	_showRoutes = true;
+	_showWaypoints = true;
+	_showWaypointLabels = true;
+	_showPOI = true;
+	_showPOILabels = true;
+	_overlapPOIs = true;
+	_showRouteWaypoints = true;
+	_trackWidth = 3;
+	_routeWidth = 3;
+	_trackStyle = Qt::SolidLine;
+	_routeStyle = Qt::DashLine;
+
+	_plot = false;
+}
+
+PathView::~PathView()
+{
+	if (_mapScale->scene() != _scene)
+		delete _mapScale;
+}
+
+PathItem *PathView::addTrack(const Track &track)
+{
+	if (track.isNull()) {
+		_palette.nextColor();
+		return 0;
+	}
+
+	TrackItem *ti = new TrackItem(track);
+	_tracks.append(ti);
+	_tr |= ti->path().boundingRect();
+	_zoom = scale2zoom(contentsScale());
+	ti->setScale(1.0/mapScale(_zoom));
+	ti->setColor(_palette.nextColor());
+	ti->setWidth(_trackWidth);
+	ti->setStyle(_trackStyle);
+	ti->setVisible(_showTracks);
+	_scene->addItem(ti);
+
+	if (_poi)
+		addPOI(_poi->points(ti));
+
+	return ti;
+}
+
+PathItem *PathView::addRoute(const Route &route)
+{
+	if (route.isNull()) {
+		_palette.nextColor();
+		return 0;
+	}
+
+	RouteItem *ri = new RouteItem(route);
+	_routes.append(ri);
+	_rr |= ri->path().boundingRect();
+	_zoom = scale2zoom(contentsScale());
+	ri->setScale(1.0/mapScale(_zoom));
+	ri->setColor(_palette.nextColor());
+	ri->setWidth(_routeWidth);
+	ri->setStyle(_routeStyle);
+	ri->setVisible(_showRoutes);
+	ri->showWaypoints(_showRouteWaypoints);
+	ri->showWaypointLabels(_showWaypointLabels);
+	_scene->addItem(ri);
+
+	if (_poi)
+		addPOI(_poi->points(ri));
+
+	return ri;
+}
+
+void PathView::addWaypoints(const QList<Waypoint> &waypoints)
+{
+	qreal scale = mapScale(_zoom);
+
+	for (int i = 0; i < waypoints.count(); i++) {
+		const Waypoint &w = waypoints.at(i);
+
+		WaypointItem *wi = new WaypointItem(w);
+		wi->setScale(1.0/scale);
+		wi->setZValue(1);
+		wi->showLabel(_showWaypointLabels);
+		wi->setVisible(_showWaypoints);
+		_scene->addItem(wi);
+
+		if (_wr.isNull()) {
+			if (_wp.isNull())
+				_wp = wi->coordinates();
+			else
+				_wr = qrectf(_wp, wi->coordinates());
+		} else
+			unite(_wr, wi->coordinates());
+
+		_waypoints.append(wi);
+	}
+
+	if (_poi)
+		addPOI(_poi->points(waypoints));
+
+	_zoom = scale2zoom(contentsScale());
+}
+
+QList<PathItem *> PathView::loadData(const Data &data)
+{
+	QList<PathItem *> paths;
+	int zoom = _zoom;
+
+
+	for (int i = 0; i < data.tracks().count(); i++)
+		paths.append(addTrack(*(data.tracks().at(i))));
+	for (int i = 0; i < data.routes().count(); i++)
+		paths.append(addRoute(*(data.routes().at(i))));
+	addWaypoints(data.waypoints());
+
+	if (_tracks.empty() && _routes.empty() && _waypoints.empty())
+		return paths;
+
+	if ((_tracks.size() + _routes.size() > 1 && _zoom < zoom)
+	  || (_waypoints.size() && _zoom < zoom))
+		rescale(_zoom);
+	else
+		updatePOIVisibility();
+
+	QRectF sr = contentsSceneRect();
+	_scene->setSceneRect(sr);
+	centerOn(sr.center());
+
+	_mapScale->setZoom(_zoom, -(sr.center().ry() * mapScale(_zoom)));
+	if (_mapScale->scene() != _scene)
+		_scene->addItem(_mapScale);
+
+	return paths;
+}
+
+qreal PathView::contentsScale() const
+{
+	QRectF br = _tr | _rr | _wr;
+
+	if (br.isNull())
+		return mapScale(ZOOM_MAX);
+
+	QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
+	  br.height() / (viewport()->height() - MARGIN/2));
+
+	return qMax(sc.x(), sc.y());
+}
+
+QRectF PathView::contentsSceneRect() const
+{
+	qreal scale = mapScale(_zoom);
+	QRectF br = scaled(_tr | _rr | _wr, 1.0/scale);
+
+	if (br.isNull())
+		return QRectF(QPointF(_wp.x() / scale - Tile::size()/2,
+		  _wp.y() /scale - Tile::size()/2), QSizeF(Tile::size(), Tile::size()));
+	else
+		return br.adjusted(-Tile::size(), -Tile::size(), Tile::size(),
+		  Tile::size());
+}
+
+void PathView::updatePOIVisibility()
+{
+	QHash<Waypoint, WaypointItem*>::const_iterator it, jt;
+
+	if (!_showPOI)
+		return;
+
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->show();
+
+	if (!_overlapPOIs) {
+		for (it = _pois.constBegin(); it != _pois.constEnd(); it++) {
+			for (jt = _pois.constBegin(); jt != _pois.constEnd(); jt++) {
+				if (it.value()->isVisible() && jt.value()->isVisible()
+				  && it != jt && it.value()->collidesWithItem(jt.value()))
+					jt.value()->hide();
+			}
+		}
+	}
+}
+
+void PathView::rescale(int zoom)
+{
+	_zoom = zoom;
+	qreal scale = mapScale(zoom);
+
+	for (int i = 0; i < _tracks.size(); i++)
+		_tracks.at(i)->setScale(1.0/scale);
+
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->setScale(1.0/scale);
+
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->setScale(1.0/scale);
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->setScale(1.0/scale);
+
+	updatePOIVisibility();
+}
+
+void PathView::setPalette(const Palette &palette)
+{
+	_palette = palette;
+	_palette.reset();
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setColor(_palette.nextColor());
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setColor(_palette.nextColor());
+}
+
+void PathView::setPOI(POI *poi)
+{
+	if (_poi)
+		disconnect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
+
+	_poi = poi;
+
+	if (_poi)
+		connect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
+
+	updatePOI();
+}
+
+void PathView::updatePOI()
+{
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++) {
+		_scene->removeItem(it.value());
+		delete it.value();
+	}
+	_pois.clear();
+
+	if (!_poi)
+		return;
+
+	for (int i = 0; i < _tracks.size(); i++)
+		addPOI(_poi->points(_tracks.at(i)));
+	for (int i = 0; i < _routes.size(); i++)
+		addPOI(_poi->points(_routes.at(i)));
+	addPOI(_poi->points(_waypoints));
+
+	updatePOIVisibility();
+}
+
+void PathView::addPOI(const QVector<Waypoint> &waypoints)
+{
+	qreal scale = mapScale(_zoom);
+
+	for (int i = 0; i < waypoints.size(); i++) {
+		const Waypoint &w = waypoints.at(i);
+
+		if (_pois.contains(w))
+			continue;
+
+		WaypointItem *pi = new WaypointItem(w);
+		pi->setScale(1.0/scale);
+		pi->setZValue(1);
+		pi->showLabel(_showPOILabels);
+		pi->setVisible(_showPOI);
+		_scene->addItem(pi);
+
+		_pois.insert(w, pi);
+	}
+}
+
+void PathView::setMap(Map *map)
+{
+	if (_map)
+		disconnect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
+
+	_map = map;
+
+	if (_map)
+		connect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
+
+	resetCachedContent();
+}
+
+void PathView::setUnits(enum Units units)
+{
+	_units = units;
+
+	_mapScale->setUnits(units);
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks[i]->setUnits(units);
+	for (int i = 0; i < _routes.count(); i++)
+		_routes[i]->setUnits(units);
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->setUnits(units);
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->setUnits(units);
+}
+
+void PathView::redraw()
+{
+	resetCachedContent();
+}
+
+void PathView::rescale()
+{
+	int zoom = scale2zoom(contentsScale());
+
+	if (zoom != _zoom) {
+		rescale(zoom);
+		_mapScale->setZoom(zoom);
+	}
+}
+
+void PathView::zoom(int z, const QPoint &pos)
+{
+	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+		return;
+
+	QPoint offset = pos - viewport()->rect().center();
+	QPointF spos = mapToScene(pos);
+
+	qreal os = mapScale(_zoom);
+	_zoom = z;
+
+	rescale(_zoom);
+
+	QRectF sr = contentsSceneRect();
+	_scene->setSceneRect(sr);
+
+	if (sr.width() < viewport()->size().width()
+	  && sr.height() < viewport()->size().height())
+		centerOn(sr.center());
+	else
+		centerOn((spos * (os/mapScale(_zoom))) - offset);
+
+	_mapScale->setZoom(_zoom);
+
+	resetCachedContent();
+}
+
+void PathView::wheelEvent(QWheelEvent *event)
+{
+	int z = (event->delta() > 0) ?
+		qMin(_zoom + 1, ZOOM_MAX) : qMax(_zoom - 1, ZOOM_MIN);
+
+	zoom(z, event->pos());
+}
+
+void PathView::mouseDoubleClickEvent(QMouseEvent *event)
+{
+	if (event->button() != Qt::LeftButton && event->button() != Qt::RightButton)
+		return;
+
+	int z = (event->button() == Qt::LeftButton) ?
+		qMin(_zoom + 1, ZOOM_MAX) : qMax(_zoom - 1, ZOOM_MIN);
+
+	zoom(z, event->pos());
+}
+
+void PathView::keyPressEvent(QKeyEvent *event)
+{
+	int z = -1;
+
+	if (event->matches(QKeySequence::ZoomIn))
+		z = qMin(_zoom + 1, ZOOM_MAX);
+	if (event->matches(QKeySequence::ZoomOut))
+		z = qMax(_zoom - 1, ZOOM_MIN);
+
+	if (z >= 0)
+		zoom(z, QRect(QPoint(), size()).center());
+	else
+		QWidget::keyPressEvent(event);
+}
+
+void PathView::plot(QPainter *painter, const QRectF &target)
+{
+	QRect orig, adj;
+	qreal ratio, diff;
+
+
+	orig = viewport()->rect();
+
+	if (orig.height() * (target.width() / target.height()) - orig.width() < 0) {
+		ratio = target.height()/target.width();
+		diff = (orig.width() * ratio) - orig.height();
+		adj = orig.adjusted(0, -diff/2, 0, diff/2);
+	} else {
+		ratio = target.width() / target.height();
+		diff = (orig.height() * ratio) - orig.width();
+		adj = orig.adjusted(-diff/2, 0, diff/2, 0);
+	}
+
+	setUpdatesEnabled(false);
+	_plot = true;
+
+	QPointF pos = _mapScale->pos();
+	_mapScale->setPos(mapToScene(QPoint(adj.bottomRight() + QPoint(
+	  -(SCALE_OFFSET + _mapScale->boundingRect().width()),
+	  -(SCALE_OFFSET + _mapScale->boundingRect().height())))));
+
+	render(painter, target, adj);
+
+	_mapScale->setPos(pos);
+
+	_plot = false;
+	setUpdatesEnabled(true);
+}
+
+void PathView::clear()
+{
+	if (_mapScale->scene() == _scene)
+		_scene->removeItem(_mapScale);
+
+	_pois.clear();
+	_tracks.clear();
+	_routes.clear();
+	_waypoints.clear();
+	_scene->clear();
+	_palette.reset();
+
+	_zoom = ZOOM_MAX;
+	_tr = QRectF(); _rr = QRectF(); _wr = QRectF();
+	_wp = QPointF();
+
+	_scene->setSceneRect(QRectF());
+}
+
+void PathView::showTracks(bool show)
+{
+	_showTracks = show;
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setVisible(show);
+}
+
+void PathView::showRoutes(bool show)
+{
+	_showRoutes = show;
+
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setVisible(show);
+}
+
+void PathView::showWaypoints(bool show)
+{
+	_showWaypoints = show;
+
+	for (int i = 0; i < _waypoints.count(); i++)
+		_waypoints.at(i)->setVisible(show);
+}
+
+void PathView::showWaypointLabels(bool show)
+{
+	_showWaypointLabels = show;
+
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->showLabel(show);
+
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->showWaypointLabels(show);
+}
+
+void PathView::showRouteWaypoints(bool show)
+{
+	_showRouteWaypoints = show;
+
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->showWaypoints(show);
+}
+
+void PathView::showPOI(bool show)
+{
+	_showPOI = show;
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->setVisible(show);
+
+	updatePOIVisibility();
+}
+
+void PathView::showPOILabels(bool show)
+{
+	_showPOILabels = show;
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->showLabel(show);
+
+	updatePOIVisibility();
+}
+
+void PathView::setPOIOverlap(bool overlap)
+{
+	_overlapPOIs = overlap;
+
+	updatePOIVisibility();
+}
+
+void PathView::setTrackWidth(int width)
+{
+	_trackWidth = width;
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setWidth(width);
+}
+
+void PathView::setRouteWidth(int width)
+{
+	_routeWidth = width;
+
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setWidth(width);
+}
+
+void PathView::setTrackStyle(Qt::PenStyle style)
+{
+	_trackStyle = style;
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setStyle(style);
+}
+
+void PathView::setRouteStyle(Qt::PenStyle style)
+{
+	_routeStyle = style;
+
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setStyle(style);
+}
+
+void PathView::drawBackground(QPainter *painter, const QRectF &rect)
+{
+	if ((_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+	  || !_map) {
+		painter->fillRect(rect, Qt::white);
+		return;
+	}
+
+	qreal scale = mapScale(_zoom);
+	QRectF rr(rect.topLeft() * scale, rect.size());
+	QPoint tile = mercator2tile(QPointF(rr.topLeft().x(), -rr.topLeft().y()),
+	  _zoom);
+	QPointF tm = tile2mercator(tile, _zoom);
+	QPoint tl = mapToScene(mapFromScene(QPointF(tm.x() / scale,
+	  -tm.y() / scale))).toPoint();
+
+	QList<Tile> tiles;
+	for (int i = 0; i <= rr.size().width() / Tile::size() + 1; i++) {
+		for (int j = 0; j <= rr.size().height() / Tile::size() + 1; j++) {
+			tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), _zoom));
+		}
+	}
+
+	_map->loadTiles(tiles, _plot);
+
+	for (int i = 0; i < tiles.count(); i++) {
+		Tile &t = tiles[i];
+		QPoint tp(tl.x() + (t.xy().x() - tile.x()) * Tile::size(),
+		  tl.y() + (t.xy().y() - tile.y()) * Tile::size());
+		painter->drawPixmap(tp, t.pixmap());
+	}
+}
+
+void PathView::resizeEvent(QResizeEvent *event)
+{
+	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+		return;
+
+	rescale();
+
+	QRectF sr = contentsSceneRect();
+
+	if (sr.width() < event->size().width()) {
+		qreal diff = event->size().width() - sr.width();
+		sr.adjust(-diff/2, 0, diff/2, 0);
+	}
+	if (sr.height() < event->size().height()) {
+		qreal diff = event->size().height() - sr.height();
+		sr.adjust(0, -diff/2, 0, diff/2);
+	}
+
+	_scene->setSceneRect(sr);
+	centerOn(sr.center());
+
+	resetCachedContent();
+}
+
+void PathView::paintEvent(QPaintEvent *event)
+{
+	QPointF scenePos = mapToScene(rect().bottomRight() + QPoint(
+	  -(SCALE_OFFSET + _mapScale->boundingRect().width()),
+	  -(SCALE_OFFSET + _mapScale->boundingRect().height())));
+	if (_mapScale->pos() != scenePos && !_plot)
+		_mapScale->setPos(scenePos);
+
+	QGraphicsView::paintEvent(event);
+}
+
+void PathView::useOpenGL(bool use)
+{
+	if (use) {
+#ifdef Q_OS_WIN32
+		if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)
+#endif // Q_OS_WIN32
+#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
+		setViewport(new QGLWidget);
+#else // QT 5
+		setViewport(new QOpenGLWidget);
+#endif // QT 5
+	} else
+		setViewport(new QWidget);
+}