Added support for TCX multi-sport activities

Redesigned appearance settings tab.

.appveyor.yml

@@ -0,0 +1,52 @@
+version: 4.16.{build}
+configuration: Release
+platform: Any CPU
+environment:
+  NSISDIR: C:\Program Files (x86)\NSIS
+  matrix:
+  - QTDIR: C:\Qt\5.9\msvc2015
+    PLATFORM: x86
+    NSI: gpxsee.nsi
+    OPENSSLDIR: C:\OpenSSL-Win32\bin
+  - QTDIR: C:\Qt\5.9\msvc2015_64
+    PLATFORM: x86_amd64
+    NSI: gpxsee64.nsi
+    OPENSSLDIR: C:\OpenSSL-Win64\bin
+install:
+- cmd: >-
+    set PATH=%QTDIR%\bin;%NSISDIR%;%PATH%
+
+    call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %PLATFORM%
+build_script:
+- cmd: >-
+    lrelease gpxsee.pro
+
+    qmake gpxsee.pro
+
+    nmake release
+
+
+    md installer
+
+    copy release\GPXSee.exe installer
+
+    windeployqt --no-svg --release installer\GPXSee.exe
+
+    copy pkg\%NSI% installer
+
+    copy pkg\datums.csv installer
+
+    copy pkg\ellipsoids.csv installer
+
+    copy pkg\maps.txt installer
+
+    copy licence.txt installer
+
+    copy %OPENSSLDIR%\libeay32.dll installer
+
+    copy %OPENSSLDIR%\ssleay32.dll installer
+
+
+    makensis.exe installer\%NSI%
+artifacts:
+- path: installer\GPXSee-*.exe

.travis.yml

@@ -0,0 +1,9 @@
+language: c++
+
+install:
+  - sudo apt-get install libqt4-dev
+
+script:
+  - lrelease gpxsee.pro
+  - qmake gpxsee.pro
+  - make

Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundleExecutable</key>
 	<string>@EXECUTABLE@</string>
 	<key>CFBundleIdentifier</key>
-	<string>cz.wz.tumic.GPXSee</string>
+	<string>org.gpxsee.GPXSee</string>
 
 	<key>CFBundleDocumentTypes</key>
 	<array>

README.md

@@ -3,7 +3,8 @@ 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.
+* User-definable online maps.
+* Offline maps (OziExplorer maps and TrekBuddy maps/atlases).
 * Elevation, speed, heart rate, cadence, power and temperature graphs.
 * Support for multiple tracks in one view.
 * Support for POI files.
@@ -12,25 +13,21 @@ KML, FIT, IGC and NMEA files.
 * 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 - Linux](https://a.fsdn.com/con/app/proj/gpxsee/screenshots/linux2.png)
 
 ## Build
-### Linux/OS X
 ```shell
 lrelease gpxsee.pro
 qmake gpxsee.pro
 make
 ```
-### Windows
-```shell
-lrelease gpxsee.pro
-qmake gpxsee.pro
-nmake release
-```
 
-## Binaries
+## Download
-* Windows & OS X builds: http://sourceforge.net/projects/gpxsee
+* [Windows & OS X builds](http://sourceforge.net/projects/gpxsee)
-* Linux packages: https://build.opensuse.org/project/repositories/home:tumic:GPXSee
+* [Linux packages](http://software.opensuse.org/download.html?project=home%3Atumic%3AGPXSee&package=gpxsee)
+
+## Changelog
+[Changelog](https://build.opensuse.org/package/view_file/home:tumic:GPXSee/gpxsee/gpxsee.changes)
 
 ## Homepage
-GPXSee homepage: http://tumic.wz.cz/gpxsee
+http://www.gpxsee.org

build/env.bat

@@ -1,6 +0,0 @@
-CALL "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" 
-set PATH=C:\qt\qtbase\bin;%PATH%
-set PATH=C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin;%PATH%
-set INCLUDE=C:\Program Files\Microsoft SDKs\Windows\v7.1\Include;%INCLUDE%
-set LIB=C:\Program Files\Microsoft SDKs\Windows\v7.1\Lib;%LIB%
-set CL=/D_USING_V110_SDK71_

build/env64.bat

@@ -1,6 +0,0 @@
-CALL "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64 
-set PATH=C:\qt64\qtbase\bin;%PATH% 
-set PATH=C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin;%PATH%
-set INCLUDE=C:\Program Files\Microsoft SDKs\Windows\v7.1\Include;%INCLUDE%
-set LIB=C:\Program Files\Microsoft SDKs\Windows\v7.1\Lib\x64;%LIB%
-set CL=/D_USING_V110_SDK71_

gpxsee.pro

@@ -1,5 +1,5 @@
 TARGET = GPXSee
-VERSION = 3.7
+VERSION = 4.16
 QT += core \
     gui \
     network
@@ -22,7 +22,7 @@ HEADERS += src/config.h \
     src/sliderinfoitem.h \
     src/filebrowser.h \
     src/map.h \
-    src/maplist.h \
+    src/onlinemap.h \
     src/downloader.h \
     src/units.h \
     src/scaleitem.h \
@@ -76,7 +76,34 @@ HEADERS += src/config.h \
     src/optionsdialog.h \
     src/colorbox.h \
     src/stylecombobox.h \
-    src/opengl.h
+    src/opengl.h \
+    src/timetype.h \
+    src/emptymap.h \
+    src/offlinemap.h \
+    src/matrix.h \
+    src/tar.h \
+    src/atlas.h \
+    src/projection.h \
+    src/mercator.h \
+    src/transversemercator.h \
+    src/latlon.h \
+    src/utm.h \
+    src/lambertconic.h \
+    src/ellipsoid.h \
+    src/ozf.h \
+    src/datum.h \
+    src/maplist.h \
+    src/albersequal.h \
+    src/oddspinbox.h \
+    src/rectc.h \
+    src/searchpointer.h \
+    src/percentslider.h \
+    src/elevationgraphitem.h \
+    src/speedgraphitem.h \
+    src/heartrategraphitem.h \
+    src/temperaturegraphitem.h \
+    src/cadencegraphitem.h \
+    src/powergraphitem.h
 SOURCES += src/main.cpp \
     src/gui.cpp \
     src/poi.cpp \
@@ -88,8 +115,7 @@ SOURCES += src/main.cpp \
     src/speedgraph.cpp \
     src/sliderinfoitem.cpp \
     src/filebrowser.cpp \
-    src/map.cpp \
+    src/onlinemap.cpp \
-    src/maplist.cpp \
     src/downloader.cpp \
     src/scaleitem.cpp \
     src/track.cpp \
@@ -130,9 +156,34 @@ SOURCES += src/main.cpp \
     src/nmeaparser.cpp \
     src/optionsdialog.cpp \
     src/colorbox.cpp \
-    src/stylecombobox.cpp
+    src/stylecombobox.cpp \
+    src/emptymap.cpp \
+    src/offlinemap.cpp \
+    src/matrix.cpp \
+    src/tar.cpp \
+    src/atlas.cpp \
+    src/mercator.cpp \
+    src/transversemercator.cpp \
+    src/utm.cpp \
+    src/lambertconic.cpp \
+    src/ellipsoid.cpp \
+    src/ozf.cpp \
+    src/datum.cpp \
+    src/maplist.cpp \
+    src/albersequal.cpp \
+    src/oddspinbox.cpp \
+    src/rectc.cpp \
+    src/percentslider.cpp \
+    src/elevationgraphitem.cpp \
+    src/speedgraphitem.cpp \
+    src/heartrategraphitem.cpp \
+    src/temperaturegraphitem.cpp \
+    src/cadencegraphitem.cpp \
+    src/powergraphitem.cpp
 RESOURCES += gpxsee.qrc
-TRANSLATIONS = lang/gpxsee_cs.ts
+TRANSLATIONS = lang/gpxsee_cs.ts \
+    lang/gpxsee_sv.ts \
+    lang/gpxsee_de.ts
 macx {
     ICON = icons/gpxsee.icns
     QMAKE_INFO_PLIST = Info.plist
@@ -142,7 +193,9 @@ macx {
         icons/fit.icns \
         icons/igc.icns \
         icons/nmea.icns \
-        pkg/maps.txt
+        pkg/maps.txt \
+        pkg/ellipsoids.csv \
+        pkg/datums.csv
     APP_RESOURCES.path = Contents/Resources
     QMAKE_BUNDLE_DATA += APP_RESOURCES
 }

gpxsee.qrc

@@ -14,11 +14,14 @@
         <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/office-chart-line.png</file>
         <file>icons/preferences-desktop-display.png</file>
         <file>icons/flag_48.png</file>
         <file>icons/system-run.png</file>
         <file>icons/document-print-preview.png</file>
+        <file>icons/view-filter.png</file>
         <file>lang/gpxsee_cs.qm</file>
+        <file>lang/gpxsee_sv.qm</file>
+        <file>lang/gpxsee_de.qm</file>
     </qresource>
 </RCC>

pkg/datums.csv

@@ -0,0 +1,123 @@
+Adindan,4201,5,-162,-12,206
+Afgooye,4205,15,-43,-163,45
+Ain el Abd 1970,4204,14,-150,-251,-2
+Anna 1 Astro 1965,4708,2,-491,-22,435
+Arc 1950,4209,5,-143,-90,-294
+Arc 1960,4210,5,-160,-8,-300
+Ascension Island 1958,4712,14,-207,107,52
+Astro B4 Sorol Atoll,4707,14,114,-116,-333
+Astro Beacon 1945,4709,14,145,75,-272
+Astro DOS 71/4,4710,14,-320,550,-494
+Astronomic Stn 1952,4711,14,124,-234,-25
+Australian Geodetic 1966,4202,2,-133,-48,148
+Australian Geodetic 1984,4203,2,-134,-48,149
+Australian Geocentric 1994 (GDA94),4283,11,0,0,0 
+Austrian,4312,3,594,84,471
+Bellevue (IGN),4714,14,-127,-769,472
+Bermuda 1957,4216,4,-73,213,296
+Bogota Observatory,4218,14,307,304,-318
+Campo Inchauspe,4221,14,-148,136,90
+Canton Astro 1966,4716,14,298,-304,-375
+Cape,4222,5,-136,-108,-292
+Cape Canaveral,4717,4,-2,150,181
+Carthage,4223,5,-263,6,431
+CH-1903,4149,3,674,15,405
+Chatham 1971,4672,14,175,-38,113
+Chua Astro,4224,14,-134,229,-29
+Corrego Alegre,4225,14,-206,172,-6
+Djakarta (Batavia),4211,3,-377,681,-50
+DOS 1968,,14,230,-199,-752
+Easter Island 1967,4719,14,211,147,111
+Egypt,,14,-130,-117,-151
+European 1950,4230,14,-87,-98,-121
+European 1950 (Mean France),,14,-87,-96,-120
+European 1950 (Spain and Portugal),,14,-84,-107,-120 
+European 1979,4668,14,-86,-98,-119
+Finland Hayford,4123,14,-78,-231,-97
+Gandajika Base,4233,14,-133,-321,50
+Geodetic Datum 1949,4272,14,84,-22,209
+GGRS 87,4121,11,-199.87,74.79,246.62
+Guam 1963,4675,4,-100,-248,259
+GUX 1 Astro,4718,14,252,-209,-751
+Hartebeeshoek94,4148,20,0,0,0
+Hermannskogel,3906,3,653,-212,449
+Hjorsey 1955,4658,14,-73,46,-86
+Hong Kong 1963,4739,14,-156,-271,-189
+Hu-Tzu-Shan,4236,14,-634,-549,-201
+Indian Bangladesh,4682,6,289,734,257
+Indian Thailand,4240,6,214,836,303
+Israeli,4281,23,-235,-85,264
+Ireland 1965,4299,1,506,-122,611
+ISTS 073 Astro 1969,4724,14,208,-435,-229
+Johnston Island,4725,14,191,-77,-204
+Kandawala,4244,6,-97,787,86
+Kerguelen Island,4698,14,145,-187,103
+Kertau 1948,4245,7,-11,851,5
+L.C. 5 Astro,4726,4,42,124,147
+Liberia 1964,4251,5,-90,40,88
+Luzon Mindanao,,4,-133,-79,-72
+Luzon Philippines,4253,4,-133,-77,-51
+Mahe 1971,4256,5,41,-220,-134
+Marco Astro,4616,14,-289,-124,60
+Massawa,4262,3,639,405,60
+Merchich,4261,5,31,146,47
+Midway Astro 1961,4727,14,912,-58,1227
+Minna,4263,5,-92,-93,122
+NAD27 Alaska,,4,-5,135,172
+NAD27 Bahamas,,4,-4,154,178
+NAD27 Canada,,4,-10,158,187
+NAD27 Canal Zone,,4,0,125,201
+NAD27 Caribbean,,4,-7,152,178
+NAD27 Central,,4,0,125,194
+NAD27 CONUS,,4,-8,160,176
+NAD27 Cuba,,4,-9,152,178
+NAD27 Greenland,,4,11,114,195
+NAD27 Mexico,,4,-12,130,190
+NAD27 San Salvador,,4,1,140,165
+NAD83,4269,11,0,0,0
+Nahrwn Masirah Ilnd,,5,-247,-148,369
+Nahrwn Saudi Arbia,,5,-231,-196,482
+Nahrwn United Arab,,5,-249,-156,381
+Naparima BWI,4271,14,-2,374,172
+NGO1948,4273,27,315,-217,528
+NTF France,4275,24,-168,-60,320
+Norsk,4817,27,278,93,474
+NZGD1949,4272,14,84,-22,209
+NZGD2000,4167,20,0,0,0
+Observatorio 1966,4182,14,-425,-169,81
+Old Egyptian,4229,12,-130,110,-13
+Old Hawaiian,4135,4,61,-285,-181
+Oman,4232,5,-346,-1,224
+Ord Srvy Grt Britn,4277,0,375,-111,431
+Pico De Las Nieves,4728,14,-307,-92,127
+Pitcairn Astro 1967,4729,14,185,165,42
+Potsdam Rauenberg DHDN,4314,3,606,23,413
+Prov So Amrican 1956,4248,14,-288,175,-376
+Prov So Chilean 1963,4254,14,16,196,93
+Puerto Rico,4139,4,11,72,-101
+Pulkovo 1942 (1),4284,15,28,-130,-95
+Pulkovo 1942 (2),4284,15,28,-130,-95
+Qatar National,4285,14,-128,-283,22
+Qornoq,4287,14,164,138,-189
+Reunion,4626,14,94,-948,-1262
+Rijksdriehoeksmeting,4289,3,593,26,478
+Rome 1940,4806,14,-225,-65,9
+RT 90,4124,3,498,-36,568
+S42,4179,15,28,-121,-77
+Santo (DOS),4730,14,170,42,84
+Sao Braz,4184,14,-203,141,53
+Sapper Hill 1943,4292,14,-355,16,74
+Schwarzeck,4293,21,616,97,-251
+South American 1969,4291,16,-57,1,-41
+South Asia,,8,7,-10,-26
+Southeast Base,4615,14,-499,-249,314
+Southwest Base,4183,14,-104,167,-38
+Timbalai 1948,4298,6,-689,691,-46
+Tokyo,4301,3,-128,481,664
+Tristan Astro 1968,4734,14,-632,438,-609
+Viti Levu 1916,4731,5,51,391,-36
+Wake-Eniwetok 1960,4732,13,101,52,-39
+WGS 72,4322,19,0,0,5
+WGS 84,4326,20,0,0,0
+Yacare,4309,14,-155,171,37
+Zanderij,4311,14,-265,120,-358

pkg/ellipsoids.csv

@@ -0,0 +1,30 @@
+0,Airy 1830,6377563.396,299.3249646
+1,Modified Airy,6377340.189,299.3249646
+2,Australian National,6378160.0,298.25 
+3,Bessel 1841,6377397.155,299.1528128
+4,Clarke 1866,6378206.4,294.9786982
+5,Clarke 1880,6378249.145,293.465
+6,Everest (India 1830),6377276.345,300.8017
+7,Everest (1948),6377304.063,300.8017
+8,Modified Fischer 1960,6378155.0,298.3
+9,Everest (Pakistan),6377309.613,300.8017
+10,Indonesian 1974,6378160.0,298.247
+11,GRS 80,6378137.0,298.257222101
+12,Helmert 1906,6378200.0,298.3
+13,Hough 1960,6378270.0,297.0
+14,International 1924,6378388.0,297.0
+15,Krassovsky 1940,6378245.0,298.3
+16,South American 1969,6378160.0,298.25
+17,Everest (Malaysia 1969),6377295.664,300.8017
+18,Everest (Sabah Sarawak),6377298.556,300.8017
+19,WGS 72,6378135.0,298.26
+20,WGS 84,6378137.0,298.257223563
+21,Bessel 1841 (Namibia),6377483.865,299.1528128
+22,Everest (India 1956),6377301.243,300.8017
+23,Clarke 1880 Palestine,6378300.789,293.466 
+24,Clarke 1880 IGN,6378249.2,293.466021
+25,Hayford 1909,6378388.0,296.959263
+26,Clarke 1858,6378350.87,294.26
+27,Bessel 1841 (Norway),6377492.0176,299.1528
+28,Plessis 1817 (France),6376523.0,308.6409971
+29,Hayford 1924,6378388.0,297.0

pkg/gpxsee.nsi

@@ -1,13 +1,16 @@
 !include "MUI2.nsh"
 !include "x64.nsh"
+!include "WinVer.nsh"
 
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "3.7"
+!define VERSION "4.16"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}.exe"
+; Compression method
+SetCompressor /SOLID lzma
 
 ; Required execution level 
 RequestExecutionLevel admin
@@ -15,6 +18,14 @@ RequestExecutionLevel admin
 ; The default installation directory
 InstallDir "$PROGRAMFILES\GPXSee"
 
+; Installer executable info
+VIProductVersion "${VERSION}.0.0"
+VIAddVersionKey "ProductVersion" ${VERSION}
+VIAddVersionKey "FileVersion" "${VERSION}.0.0"
+VIAddVersionKey "ProductName" "GPXSee"
+VIAddVersionKey "LegalCopyright" "GPXSee project"
+VIAddVersionKey "FileDescription" "GPXSee installer"
+
 ; Registry key to check for directory (so if you install again, it will 
 ; overwrite the old one automatically)
 InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
@@ -55,9 +66,15 @@ Var StartMenuFolder
 ; Languages
 !insertmacro MUI_LANGUAGE "English"
 
+Function .onInit
+  ${IfNot} ${AtLeastWin7}
+    MessageBox MB_OK "GPXSee can only be installed on Windows 7 or later."
+    Abort
+  ${EndIf}
+FunctionEnd 
 
 ; The stuff to install
-Section "GPXSee (required)" SEC_APP
+Section "GPXSee" SEC_APP
 
   SectionIn RO
   
@@ -67,6 +84,8 @@ Section "GPXSee (required)" SEC_APP
   ; Put the files there
   File "gpxsee.exe"
   File "maps.txt"
+  File "ellipsoids.csv"
+  File "datums.csv"
 
   ; Create start menu entry and add links
   SetShellVarContext all
@@ -122,16 +141,15 @@ Section "GPXSee (required)" SEC_APP
 
 SectionEnd
 
-Section "QT libs" SEC_QT
+Section "QT framework" SEC_QT
+
+  SectionIn RO
 
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
   File "Qt5Widgets.dll"
   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"
@@ -140,6 +158,8 @@ SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
+  SectionIn RO
+
   DetailPrint "Checking whether Visual C++ 2015 Redistributable is already installed..."
   ${If} ${RunningX64}
     ReadRegDword $R0 HKLM "SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x86" "Installed"
@@ -153,12 +173,28 @@ Section "MSVC runtime" SEC_MSVC
 
   DetailPrint "Installing Visual C++ 2015 Redistributable..."
   SetOutPath $TEMP
-  File "VC_redist.x86.exe"
+  File "vcredist_x86.exe"
-  ExecWait '"$TEMP/VC_redist.x86.exe" /install /quiet /norestart'
+  ExecWait '"$TEMP\vcredist_x86.exe" /install /quiet /norestart'
+  SetOutPath $INSTDIR
 
   done:
 SectionEnd
 
+Section "OpenSSL" SEC_OPENSSL
+
+  File "libeay32.dll"
+  File "ssleay32.dll"
+
+SectionEnd
+
+Section "ANGLE" SEC_ANGLE
+
+  File "libGLESv2.dll"
+  File "libEGL.dll"
+  File "D3DCompiler_47.dll"
+
+SectionEnd
+
 ;--------------------------------
 
 ; Uninstaller
@@ -201,15 +237,21 @@ SectionEnd
 
 ;Language strings
 LangString DESC_QT ${LANG_ENGLISH} \
-  "QT Library. Unselct only if you have QT already installed!"
+  "QT cross-platform application framework."
 LangString DESC_MSVC ${LANG_ENGLISH} \
-  "Visual C++ 2015 runtime components. Unselct only if you have the runtime already installed!"
+  "Visual C++ 2015 runtime components. If already installed, will be skipped."
+LangString DESC_OPENSSL ${LANG_ENGLISH} \
+  "OpenSSL library. Required for HTTPS to work."
+LangString DESC_ANGLE ${LANG_ENGLISH} \
+  "ANGLE (OpenGL via Direct3D). Enables OpenGL on systems without native OpenGL drivers."
 LangString DESC_APP ${LANG_ENGLISH} \
   "GPXSee application"
 
 ;Assign language strings to sections
 !insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_QT} $(DESC_QT)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_OPENSSL} $(DESC_OPENSSL)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_ANGLE} $(DESC_ANGLE)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
 !insertmacro MUI_FUNCTION_DESCRIPTION_END

pkg/gpxsee64.nsi

@@ -1,13 +1,16 @@
 !include "MUI2.nsh"
 !include "x64.nsh"
+!include "WinVer.nsh"
 
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "3.7"
+!define VERSION "4.16"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"
+; Compression method
+SetCompressor /SOLID lzma
 
 ; Required execution level 
 RequestExecutionLevel admin
@@ -15,6 +18,14 @@ RequestExecutionLevel admin
 ; The default installation directory
 InstallDir "$PROGRAMFILES64\GPXSee"
 
+; Installer executable info
+VIProductVersion "${VERSION}.0.0"
+VIAddVersionKey "ProductVersion" ${VERSION}
+VIAddVersionKey "FileVersion" "${VERSION}.0.0"
+VIAddVersionKey "ProductName" "GPXSee"
+VIAddVersionKey "LegalCopyright" "GPXSee project"
+VIAddVersionKey "FileDescription" "GPXSee installer (x64)"
+
 ; Registry key to check for directory (so if you install again, it will 
 ; overwrite the old one automatically)
 InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
@@ -55,7 +66,12 @@ Var StartMenuFolder
 ; Languages
 !insertmacro MUI_LANGUAGE "English"
 
-Function .onInit  
+Function .onInit
+  ${IfNot} ${AtLeastWin7}
+    MessageBox MB_OK "GPXSee can only be installed on Windows 7 or later."
+    Abort
+  ${EndIf}
+  
   ${If} ${RunningX64}
     SetRegView 64
   ${Else}  
@@ -65,7 +81,7 @@ Function .onInit
 FunctionEnd 
 
 ; The stuff to install
-Section "GPXSee (required)" SEC_APP
+Section "GPXSee" SEC_APP
 
   SectionIn RO
   
@@ -75,6 +91,8 @@ Section "GPXSee (required)" SEC_APP
   ; Put the files there
   File "gpxsee.exe"
   File "maps.txt"
+  File "ellipsoids.csv"
+  File "datums.csv"
   
   ; Create start menu entry and add links
   SetShellVarContext all
@@ -92,7 +110,7 @@ Section "GPXSee (required)" SEC_APP
   WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
 
   ; Write the uninstall keys for Windows
-  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee (x64)"
   WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
   WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
   WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
@@ -130,16 +148,15 @@ Section "GPXSee (required)" SEC_APP
 
 SectionEnd
 
-Section "QT libs" SEC_QT
+Section "QT framework" SEC_QT
+
+  SectionIn RO
 
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
   File "Qt5Widgets.dll"
   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"
@@ -148,6 +165,8 @@ SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
+  SectionIn RO
+
   DetailPrint "Checking whether Visual C++ 2015 Redistributable is already installed..."
   ReadRegDword $R0 HKLM "SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64" "Installed"
   StrCmp $R0 "1" 0 +3
@@ -156,12 +175,28 @@ Section "MSVC runtime" SEC_MSVC
 
   DetailPrint "Installing Visual C++ 2015 Redistributable..."
   SetOutPath $TEMP
-  File "VC_redist.x64.exe"
+  File "vcredist_x64.exe"
-  ExecWait '"$TEMP/VC_redist.x64.exe" /install /quiet /norestart'
+  ExecWait '"$TEMP\vcredist_x64.exe" /install /quiet /norestart'
+  SetOutPath $INSTDIR
 
   done:
 SectionEnd
 
+Section "OpenSSL" SEC_OPENSSL
+
+  File "libeay32.dll"
+  File "ssleay32.dll"
+
+SectionEnd
+
+Section "ANGLE" SEC_ANGLE
+
+  File "libGLESv2.dll"
+  File "libEGL.dll"
+  File "D3DCompiler_47.dll"
+
+SectionEnd
+
 ;--------------------------------
 
 ; Uninstaller
@@ -205,15 +240,21 @@ SectionEnd
 
 ;Language strings
 LangString DESC_QT ${LANG_ENGLISH} \
-  "QT Library. Unselct only if you have QT already installed!"
+  "QT cross-platform application framework."
 LangString DESC_MSVC ${LANG_ENGLISH} \
-  "Visual C++ 2015 runtime components. Unselct only if you have the runtime already installed!"
+  "Visual C++ 2015 runtime components. If already installed, will be skipped."
+LangString DESC_OPENSSL ${LANG_ENGLISH} \
+  "OpenSSL library. Required for HTTPS to work."
+LangString DESC_ANGLE ${LANG_ENGLISH} \
+  "ANGLE (OpenGL via Direct3D). Enables OpenGL on systems without native OpenGL drivers."
 LangString DESC_APP ${LANG_ENGLISH} \
   "GPXSee application"
 
 ;Assign language strings to sections
 !insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_QT} $(DESC_QT)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_OPENSSL} $(DESC_OPENSSL)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_ANGLE} $(DESC_ANGLE)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
 !insertmacro MUI_FUNCTION_DESCRIPTION_END

pkg/maps.txt

@@ -1,2 +1,5 @@
-Thunderforest	http://tile.thunderforest.com/outdoors/$z/$x/$y.png
+Open Topo Map	https://a.tile.opentopomap.org/$z/$x/$y.png	17
-Open Street Map	http://tile.openstreetmap.org/$z/$x/$y.png
+4UMaps	http://4umaps.eu/$z/$x/$y.png	15
+Open Street Map	http://tile.openstreetmap.org/$z/$x/$y.png	19
+USGS Topo	https://navigator.er.usgs.gov/tiles/tcr.cgi/$z/$x/$y.png	15
+USGS Imagery	https://navigator.er.usgs.gov/tiles/aerial_Imagery.cgi/$z/$x/$y	15

src/albersequal.cpp

@@ -0,0 +1,229 @@
+/*
+ * Based on libgeotrans with the following Source Code Disclaimer:
+
+1. The GEOTRANS source code ("the software") is provided free of charge by
+the National Imagery and Mapping Agency (NIMA) of the United States
+Department of Defense. Although NIMA makes no copyright claim under Title 17
+U.S.C., NIMA claims copyrights in the source code under other legal regimes.
+NIMA hereby grants to each user of the software a license to use and
+distribute the software, and develop derivative works.
+
+2. Warranty Disclaimer: The software was developed to meet only the internal
+requirements of the U.S. National Imagery and Mapping Agency. The software
+is provided "as is," and no warranty, express or implied, including but not
+limited to the implied warranties of merchantability and fitness for
+particular purpose or arising by statute or otherwise in law or from a
+course of dealing or usage in trade, is made by NIMA as to the accuracy and
+functioning of the software.
+
+3. NIMA and its personnel are not required to provide technical support or
+general assistance with respect to the software.
+
+4. Neither NIMA nor its personnel will be liable for any claims, losses, or
+damages arising from or connected with the use of the software. The user
+agrees to hold harmless the United States National Imagery and Mapping
+Agency. The user's sole and exclusive remedy is to stop using the software.
+
+5. NIMA requests that products developed using the software credit the
+source of the software with the following statement, "The product was
+developed using GEOTRANS, a product of the National Imagery and Mapping
+Agency and U.S. Army Engineering Research and Development Center."
+
+6. For any products developed using the software, NIMA requires a disclaimer
+that use of the software does not indicate endorsement or approval of the
+product by the Secretary of Defense or the National Imagery and Mapping
+Agency. Pursuant to the United States Code, 10 U.S.C. Sec. 2797, the name of
+the National Imagery and Mapping Agency, the initials "NIMA", the seal of
+the National Imagery and Mapping Agency, or any colorable imitation thereof
+shall not be used to imply approval, endorsement, or authorization of a
+product without prior written permission from United States Secretary of
+Defense.
+
+*/
+
+#include "ellipsoid.h"
+#include "rd.h"
+#include "albersequal.h"
+
+
+#ifndef M_PI_2
+	#define M_PI_2 1.57079632679489661923
+#endif // M_PI_2
+
+#define ONE_MINUS_SQR(x) (1.0 - (x) * (x))
+#define ALBERS_Q(slat, one_minus_sqr_es_sin, es_sin) \
+	(_one_minus_es2 * ((slat) / (one_minus_sqr_es_sin) - \
+	(1 / (_two_es)) * log((1 - (es_sin)) / (1 + (es_sin)))))
+#define ALBERS_M(clat, one_minus_sqr_es_sin) \
+	((clat) / sqrt(one_minus_sqr_es_sin))
+
+
+AlbersEqual::AlbersEqual(const Ellipsoid &ellipsoid, double standardParallel1,
+  double standardParallel2, double latitudeOrigin, double longitudeOrigin,
+  double falseEasting, double falseNorthing)
+{
+	double sin_lat, sin_lat1, sin_lat2, cos_lat1, cos_lat2;
+	double m1, m2, sqr_m1, sqr_m2;
+	double q0, q1, q2;
+	double es_sin, es_sin1, es_sin2;
+	double one_minus_sqr_es_sin1, one_minus_sqr_es_sin2;
+	double nq0;
+	double sp1, sp2;
+
+
+	_e = ellipsoid;
+	_latitudeOrigin = deg2rad(latitudeOrigin);
+	_longitudeOrigin = deg2rad(longitudeOrigin);
+	_falseEasting = falseEasting;
+	_falseNorthing = falseNorthing;
+
+	sp1 = deg2rad(standardParallel1);
+	sp2 = deg2rad(standardParallel2);
+
+	_es2 = 2 * _e.flattening() - _e.flattening() * _e.flattening();
+	_es = sqrt(_es2);
+	_one_minus_es2 = 1 - _es2;
+	_two_es = 2 * _es;
+
+	sin_lat = sin(_latitudeOrigin);
+	es_sin = _es * sin_lat;
+	q0 = ALBERS_Q(sin_lat, ONE_MINUS_SQR(es_sin), es_sin);
+
+	sin_lat1 = sin(sp1);
+	cos_lat1 = cos(sp1);
+	es_sin1 = _es * sin_lat1;
+	one_minus_sqr_es_sin1 = ONE_MINUS_SQR(es_sin1);
+	m1 = ALBERS_M(cos_lat1, one_minus_sqr_es_sin1);
+	q1 = ALBERS_Q(sin_lat1, one_minus_sqr_es_sin1, es_sin1);
+
+	sqr_m1 = m1 * m1;
+	if (fabs(sp1 - sp2) > 1.0e-10) {
+		sin_lat2 = sin(sp2);
+		cos_lat2 = cos(sp2);
+		es_sin2 = _es * sin_lat2;
+		one_minus_sqr_es_sin2 = ONE_MINUS_SQR(es_sin2);
+		m2 = ALBERS_M(cos_lat2, one_minus_sqr_es_sin2);
+		q2 = ALBERS_Q(sin_lat2, one_minus_sqr_es_sin2, es_sin2);
+		sqr_m2 = m2 * m2;
+		_n = (sqr_m1 - sqr_m2) / (q2 - q1);
+	} else
+		_n = sin_lat1;
+
+	_C = sqr_m1 + _n * q1;
+	_a_over_n = _e.radius() / _n;
+	nq0 = _n * q0;
+	_rho0 = (_C < nq0) ? 0 : _a_over_n * sqrt(_C - nq0);
+}
+
+QPointF AlbersEqual::ll2xy(const Coordinates &c) const
+{
+	double dlam;
+	double sin_lat;
+	double es_sin;
+	double q;
+	double rho;
+	double theta;
+	double nq;
+
+
+	dlam = deg2rad(c.lon()) - _longitudeOrigin;
+	if (dlam > M_PI)
+		dlam -= 2.0 * M_PI;
+	if (dlam < -M_PI)
+		dlam += 2.0 * M_PI;
+
+	sin_lat = sin(deg2rad(c.lat()));
+	es_sin = _es * sin_lat;
+	q = ALBERS_Q(sin_lat, ONE_MINUS_SQR(es_sin), es_sin);
+	nq = _n * q;
+	rho = (_C < nq) ? 0 : _a_over_n * sqrt(_C - nq);
+	theta = _n * dlam;
+
+	return QPointF(rho * sin(theta) + _falseEasting,
+	  _rho0 - rho * cos(theta) + _falseNorthing);
+}
+
+Coordinates AlbersEqual::xy2ll(const QPointF &p) const
+{
+	double dy, dx;
+	double rho0_minus_dy;
+	double q, qc, q_over_2;
+	double rho, rho_n;
+	double phi, delta_phi = 1.0;
+	double sin_phi;
+	double es_sin, one_minus_sqr_es_sin;
+	double theta = 0.0;
+	int count = 30;
+	double tolerance = 4.85e-10;
+	double lat, lon;
+
+
+	dy = p.y() - _falseNorthing;
+	dx = p.x() - _falseEasting;
+
+	rho0_minus_dy = _rho0 - dy;
+	rho = sqrt(dx * dx + rho0_minus_dy * rho0_minus_dy);
+
+	if (_n < 0) {
+		rho *= -1.0;
+		dx *= -1.0;
+		rho0_minus_dy *= -1.0;
+	}
+
+	if (rho != 0.0)
+		theta = atan2(dx, rho0_minus_dy);
+	rho_n = rho * _n;
+	q = (_C - (rho_n * rho_n) / (_e.radius() * _e.radius())) / _n;
+	qc = 1 - ((_one_minus_es2) / (_two_es)) * log((1.0 - _es) / (1.0 + _es));
+	if (fabs(fabs(qc) - fabs(q)) > 1.0e-6) {
+		q_over_2 = q / 2.0;
+		if (q_over_2 > 1.0)
+			lat = M_PI_2;
+		else if (q_over_2 < -1.0)
+			lat = -M_PI_2;
+		else {
+			phi = asin(q_over_2);
+			if (_es < 1.0e-10)
+				lat = phi;
+			else  {
+				while ((fabs(delta_phi) > tolerance) && count) {
+					sin_phi = sin(phi);
+					es_sin = _es * sin_phi;
+					one_minus_sqr_es_sin = ONE_MINUS_SQR(es_sin);
+					delta_phi = (one_minus_sqr_es_sin * one_minus_sqr_es_sin)
+					  / (2.0 * cos(phi)) * (q / (_one_minus_es2) - sin_phi
+					  / one_minus_sqr_es_sin + (log((1.0 - es_sin)
+					  / (1.0 + es_sin)) / (_two_es)));
+					phi += delta_phi;
+					count --;
+				}
+
+				lat = phi;
+			}
+
+			if (lat > M_PI_2)
+				lat = M_PI_2;
+			else if (lat < -M_PI_2)
+				lat = -M_PI_2;
+		}
+	} else {
+		if (q >= 0.0)
+			lat = M_PI_2;
+		else
+			lat = -M_PI_2;
+	}
+
+	lon = _longitudeOrigin + theta / _n;
+
+	if (lon > M_PI)
+		lon -= M_PI * 2;
+	if (lon < -M_PI)
+		lon += M_PI * 2;
+
+	if (lon > M_PI)
+		lon = M_PI;
+	else if (lon < -M_PI)
+		lon = -M_PI;
+
+	return Coordinates(rad2deg(lon), rad2deg(lat));
+}

src/albersequal.h

@@ -0,0 +1,36 @@
+#ifndef ALBERSEQUAL_H
+#define ALBERSEQUAL_H
+
+#include "projection.h"
+
+class Ellipsoid;
+
+class AlbersEqual : public Projection
+{
+public:
+	AlbersEqual(const Ellipsoid &ellipsoid, double standardParallel1,
+	  double standardParallel2, double latitudeOrigin, double longitudeOrigin,
+	  double falseEasting, double falseNorthing);
+
+	virtual QPointF ll2xy(const Coordinates &c) const;
+	virtual Coordinates xy2ll(const QPointF &p) const;
+
+private:
+	Ellipsoid _e;
+
+	double _latitudeOrigin;
+	double _longitudeOrigin;
+	double _falseEasting;
+	double _falseNorthing;
+
+	double _rho0;
+	double _C;
+	double _n;
+	double _es;
+	double _es2;
+	double _a_over_n;
+	double _one_minus_es2;
+	double _two_es;
+};
+
+#endif // ALBERSEQUAL_H

src/app.cpp

@@ -3,26 +3,33 @@
 #include <QLocale>
 #include <QFileOpenEvent>
 #include <QNetworkProxyFactory>
-#include <QPixmapCache>
+#include <QLibraryInfo>
 #include "opengl.h"
 #include "gui.h"
+#include "onlinemap.h"
+#include "downloader.h"
 #include "app.h"
 
 
 App::App(int &argc, char **argv) : QApplication(argc, argv),
   _argc(argc), _argv(argv)
 {
-	_translator = new QTranslator();
+	QTranslator *gpxsee = new QTranslator(this);
-
 	QString locale = QLocale::system().name();
-	_translator->load(QString(":/lang/gpxsee_") + locale);
+	gpxsee->load(QString(":/lang/gpxsee_") + locale);
-	installTranslator(_translator);
+	installTranslator(gpxsee);
+
+	QTranslator *qt = new QTranslator(this);
+	qt->load(QLocale::system(), "qt", "_", QLibraryInfo::location(
+	  QLibraryInfo::TranslationsPath));
+	installTranslator(qt);
+
 #ifdef Q_OS_MAC
 	setAttribute(Qt::AA_DontShowIconsInMenus);
 #endif // Q_OS_MAC
 
 	QNetworkProxyFactory::setUseSystemConfiguration(true);
-	QPixmapCache::setCacheLimit(65536);
+	OnlineMap::setDownloader(new Downloader(this));
 	OPENGL_SET_SAMPLES(4);
 
 	_gui = new GUI();
@@ -31,7 +38,6 @@ App::App(int &argc, char **argv) : QApplication(argc, argv),
 App::~App()
 {
 	delete _gui;
-	delete _translator;
 }
 
 void App::run()

src/app.h

@@ -4,7 +4,6 @@
 #include <QApplication>
 
 class GUI;
-class QTranslator;
 
 class App : QApplication
 {
@@ -22,7 +21,6 @@ private:
 	int &_argc;
 	char **_argv;
 	GUI *_gui;
-	QTranslator *_translator;
 };
 
 #endif // APP_H

src/atlas.cpp

@@ -0,0 +1,338 @@
+#include <QDir>
+#include <QtAlgorithms>
+#include <QPainter>
+#include "rectc.h"
+#include "tar.h"
+#include "atlas.h"
+
+
+#define ZOOM_THRESHOLD 0.9
+
+#define TL(m) ((m)->xy2pp((m)->bounds().topLeft()))
+#define BR(m) ((m)->xy2pp((m)->bounds().bottomRight()))
+
+static bool resCmp(const OfflineMap *m1, const OfflineMap *m2)
+{
+	qreal r1, r2;
+
+	r1 = m1->resolution(m1->bounds().center());
+	r2 = m2->resolution(m2->bounds().center());
+
+	return r1 > r2;
+}
+
+static bool xCmp(const OfflineMap *m1, const OfflineMap *m2)
+{
+	return TL(m1).x() < TL(m2).x();
+}
+
+static bool yCmp(const OfflineMap *m1, const OfflineMap *m2)
+{
+	return TL(m1).y() > TL(m2).y();
+}
+
+bool Atlas::isAtlas(Tar &tar, const QString &path)
+{
+	QFileInfo fi(path);
+	QByteArray ba;
+	QString suffix = fi.suffix().toLower();
+
+	if (suffix == "tar") {
+		if (!tar.load(path)) {
+			_errorString = "Error reading tar file";
+			return false;
+		}
+		QString tbaFileName = fi.completeBaseName() + ".tba";
+		ba = tar.file(tbaFileName);
+	} else if (suffix == "tba") {
+		QFile tbaFile(path);
+		if (!tbaFile.open(QIODevice::ReadOnly)) {
+			_errorString = QString("Error opening tba file: %1")
+			  .arg(tbaFile.errorString());
+			return false;
+		}
+		ba = tbaFile.readAll();
+	}
+
+	if (ba.startsWith("Atlas 1.0"))
+		return true;
+	else {
+		_errorString = "Missing or invalid tba file";
+		return false;
+	}
+}
+
+void Atlas::computeZooms()
+{
+	qSort(_maps.begin(), _maps.end(), resCmp);
+
+	_zooms.append(QPair<int, int>(0, _maps.count() - 1));
+	for (int i = 1; i < _maps.count(); i++) {
+		qreal last = _maps.at(i-1)->resolution(_maps.at(i)->bounds().center());
+		qreal cur = _maps.at(i)->resolution(_maps.at(i)->bounds().center());
+		if (cur < last * ZOOM_THRESHOLD) {
+			_zooms.last().second = i-1;
+			_zooms.append(QPair<int, int>(i, _maps.count() - 1));
+		}
+	}
+}
+
+void Atlas::computeBounds()
+{
+	QList<QPointF> offsets;
+
+	for (int i = 0; i < _maps.count(); i++)
+		offsets.append(QPointF());
+
+	for (int z = 0; z < _zooms.count(); z++) {
+		QList<OfflineMap*> m;
+		for (int i = _zooms.at(z).first; i <= _zooms.at(z).second; i++)
+			m.append(_maps.at(i));
+
+		qSort(m.begin(), m.end(), xCmp);
+		offsets[_maps.indexOf(m.first())].setX(0);
+		for (int i = 1; i < m.size(); i++) {
+			qreal w = round(m.first()->pp2xy(TL(m.at(i))).x());
+			offsets[_maps.indexOf(m.at(i))].setX(w);
+		}
+
+		qSort(m.begin(), m.end(), yCmp);
+		offsets[_maps.indexOf(m.first())].setY(0);
+		for (int i = 1; i < m.size(); i++) {
+			qreal h = round(m.first()->pp2xy(TL(m.at(i))).y());
+			offsets[_maps.indexOf(m.at(i))].setY(h);
+		}
+	}
+
+	for (int i = 0; i < _maps.count(); i++)
+		_bounds.append(QPair<QRectF, QRectF>(QRectF(TL(_maps.at(i)),
+		  BR(_maps.at(i))), QRectF(offsets.at(i), _maps.at(i)->bounds().size())));
+}
+
+Atlas::Atlas(const QString &fileName, QObject *parent) : Map(parent)
+{
+	Tar tar;
+	QFileInfo fi(fileName);
+
+	_valid = false;
+	_zoom = 0;
+	_name = fi.dir().dirName();
+	_ci = -1; _cz = -1;
+
+	if (!isAtlas(tar, fileName))
+		return;
+
+	QDir dir(fi.absolutePath());
+	QFileInfoList layers = dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
+	for (int n = 0; n < layers.count(); n++) {
+		QDir zdir(layers.at(n).absoluteFilePath());
+		QFileInfoList maps = zdir.entryInfoList(QDir::Dirs
+		  | QDir::NoDotAndDotDot);
+		for (int i = 0; i < maps.count(); i++) {
+			QString mapFile = maps.at(i).absoluteFilePath() + "/"
+			  + maps.at(i).fileName() + ".map";
+
+			OfflineMap *map;
+			if (tar.isOpen())
+				map = new OfflineMap(mapFile, tar, this);
+			else
+				map = new OfflineMap(mapFile, this);
+
+			if (map->isValid())
+				_maps.append(map);
+			else {
+				_errorString = QString("Error loading map: %1: %2")
+				  .arg(mapFile, map->errorString());
+				return;
+			}
+		}
+	}
+	if (_maps.isEmpty()) {
+		_errorString = "No maps found in atlas";
+		return;
+	}
+
+	computeZooms();
+	computeBounds();
+
+	_valid = true;
+}
+
+Atlas::~Atlas()
+{
+	for (int i = 0; i < _maps.size(); i++)
+		delete _maps.at(i);
+}
+
+QRectF Atlas::bounds() const
+{
+	QSizeF s(0, 0);
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.right() > s.width())
+			s.setWidth(_bounds.at(i).second.right());
+		if (_bounds.at(i).second.bottom() > s.height())
+			s.setHeight(_bounds.at(i).second.bottom());
+	}
+
+	return QRectF(QPointF(0, 0), s);
+}
+
+qreal Atlas::resolution(const QPointF &p) const
+{
+	int idx = _zooms.at(_zoom).first;
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.contains(_maps.at(i)->xy2pp(p))) {
+			idx = i;
+			break;
+		}
+	}
+
+	return _maps.at(idx)->resolution(p);
+}
+
+qreal Atlas::zoom() const
+{
+	return _zoom;
+}
+
+qreal Atlas::zoomFit(const QSize &size, const RectC &br)
+{
+	_zoom = 0;
+
+	if (!br.isValid()) {
+		_zoom = _zooms.size() - 1;
+		return _zoom;
+	}
+
+	for (int z = 0; z < _zooms.count(); z++) {
+		for (int i = _zooms.at(z).first; i <= _zooms.at(z).second; i++) {
+			if (!_bounds.at(i).first.contains(_maps.at(i)->ll2pp(br.center())))
+				continue;
+
+			QRect sbr = QRectF(_maps.at(i)->ll2xy(br.topLeft()),
+			  _maps.at(i)->ll2xy(br.bottomRight())).toRect().normalized();
+
+			if (sbr.size().width() > size.width()
+			  || sbr.size().height() > size.height())
+				return _zoom;
+
+			_zoom = z;
+			break;
+		}
+	}
+
+	return _zoom;
+}
+
+qreal Atlas::zoomFit(qreal resolution, const Coordinates &c)
+{
+	_zoom = 0;
+
+	for (int z = 0; z < _zooms.count(); z++) {
+		for (int i = _zooms.at(z).first; i <= _zooms.at(z).second; i++) {
+			if (!_bounds.at(i).first.contains(_maps.at(i)->ll2pp(c)))
+				continue;
+
+			if (_maps.at(i)->resolution(_maps.at(i)->ll2xy(c)) < resolution)
+				return _zoom;
+
+			_zoom = z;
+			break;
+		}
+	}
+
+	return _zoom;
+}
+
+qreal Atlas::zoomIn()
+{
+	_zoom = qMin(_zoom + 1, _zooms.size() - 1);
+	return _zoom;
+}
+
+qreal Atlas::zoomOut()
+{
+	_zoom = qMax(_zoom - 1, 0);
+	return _zoom;
+}
+
+QPointF Atlas::ll2xy(const Coordinates &c)
+{
+	QPointF pp;
+
+	if (_cz != _zoom) {
+		_ci = -1;
+		_cz = _zoom;
+	}
+
+	if (_ci >= 0)
+		pp = _maps.at(_ci)->ll2pp(c);
+	if (_ci < 0 || !_bounds.at(_ci).first.contains(pp)) {
+		_ci = _zooms.at(_zoom).first;
+		for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+			pp = _maps.at(i)->ll2pp(c);
+			if (_bounds.at(i).first.contains(pp)) {
+				_ci = i;
+				break;
+			}
+		}
+	}
+
+	QPointF p = _maps.at(_ci)->pp2xy(pp);
+	return p + _bounds.at(_ci).second.topLeft();
+}
+
+Coordinates Atlas::xy2ll(const QPointF &p)
+{
+	int idx = _zooms.at(_zoom).first;
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.contains(_maps.at(i)->xy2pp(p))) {
+			idx = i;
+			break;
+		}
+	}
+
+	QPointF p2 = p - _bounds.at(idx).second.topLeft();
+	return _maps.at(idx)->xy2ll(p2);
+}
+
+void Atlas::draw(QPainter *painter, const QRectF &rect)
+{
+	// All in one map
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.contains(rect)) {
+			draw(painter, rect, i);
+			return;
+		}
+	}
+
+	// Multiple maps
+	painter->fillRect(rect, _backgroundColor);
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		QRectF ir = rect.intersected(_bounds.at(i).second);
+		if (!ir.isNull())
+			draw(painter, ir, i);
+	}
+}
+
+void Atlas::draw(QPainter *painter, const QRectF &rect, int mapIndex)
+{
+	OfflineMap *map = _maps.at(mapIndex);
+	const QPointF offset = _bounds.at(mapIndex).second.topLeft();
+	QRectF pr = QRectF(rect.topLeft() - offset, rect.size());
+
+	map->load();
+
+	painter->translate(offset);
+	map->draw(painter, pr);
+	painter->translate(-offset);
+}
+
+void Atlas::unload()
+{
+	for (int i = 0; i < _maps.count(); i++)
+		_maps.at(i)->unload();
+}

src/atlas.h

@@ -0,0 +1,56 @@
+#ifndef ATLAS_H
+#define ATLAS_H
+
+#include <QFileInfoList>
+#include "map.h"
+#include "offlinemap.h"
+
+
+class Atlas : public Map
+{
+	Q_OBJECT
+
+public:
+	Atlas(const QString &fileName, QObject *parent = 0);
+	~Atlas();
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const;
+	qreal zoomFit(const QSize &size, const RectC &br);
+	qreal zoomFit(qreal resolution, const Coordinates &c);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c);
+	Coordinates xy2ll(const QPointF &p);
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void unload();
+
+	bool isValid() const {return _valid;}
+	const QString &errorString() const {return _errorString;}
+
+private:
+	void draw(QPainter *painter, const QRectF &rect, int mapIndex);
+	bool isAtlas(Tar &tar, const QString &path);
+	void computeZooms();
+	void computeBounds();
+
+	QString _name;
+	bool _valid;
+	QString _errorString;
+
+	QList<OfflineMap*> _maps;
+	QVector<QPair<int, int> > _zooms;
+	QVector<QPair<QRectF, QRectF> > _bounds;
+	int _zoom;
+
+	int _ci, _cz;
+};
+
+#endif // ATLAS_H

src/cadencegraph.cpp

@@ -1,10 +1,10 @@
 #include "data.h"
+#include "cadencegraphitem.h"
 #include "cadencegraph.h"
 
 
 CadenceGraph::CadenceGraph(QWidget *parent) : GraphTab(parent)
 {
-	_units = Metric;
 	_showTracks = true;
 
 	GraphView::setYUnits(tr("1/min"));
@@ -28,21 +28,16 @@ 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++) {
+		CadenceGraphItem *gi = new CadenceGraphItem(graph, _graphType);
-			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+		GraphView::addGraph(gi, paths.at(i));
-			sum += graph.at(j).y() * ds;
-			w += ds;
-		}
-		_avg.append(QPointF(data.tracks().at(i)->distance(), sum/w));
 
-		GraphView::loadGraph(graph, paths.at(i));
+		_avg.append(QPointF(data.tracks().at(i)->distance(), gi->avg()));
 	}
 
 	for (int i = 0; i < data.routes().count(); i++)

src/cadencegraph.h

@@ -13,7 +13,6 @@ public:
 	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);}
 
@@ -24,7 +23,6 @@ private:
 
 	QList<QPointF> _avg;
 
-	enum Units _units;
 	bool _showTracks;
 };
 

src/cadencegraphitem.cpp

@@ -0,0 +1,26 @@
+#include "tooltip.h"
+#include "cadencegraphitem.h"
+
+CadenceGraphItem::CadenceGraphItem(const Graph &graph, GraphType type,
+  QGraphicsItem *parent) : GraphItem(graph, type, parent)
+{
+	qreal sum = 0;
+
+	for (int j = 1; j < graph.size(); j++)
+		sum += graph.at(j).y() * (graph.at(j).s() - graph.at(j-1).s());
+	_avg = sum/graph.last().s();
+
+	setToolTip(toolTip());
+}
+
+QString CadenceGraphItem::toolTip() const
+{
+	ToolTip tt;
+
+	tt.insert(tr("Maximum"), QString::number(max(), 'f', 1)
+	  + UNIT_SPACE + tr("1/min"));
+	tt.insert(tr("Average"), QString::number(avg(), 'f', 1)
+	  + UNIT_SPACE + tr("1/min"));
+
+	return tt.toString();
+}

src/cadencegraphitem.h

@@ -0,0 +1,23 @@
+#ifndef CADENCEGRAPHITEM_H
+#define CADENCEGRAPHITEM_H
+
+#include "graphitem.h"
+
+class CadenceGraphItem : public GraphItem
+{
+	Q_OBJECT
+
+public:
+	CadenceGraphItem(const Graph &graph, GraphType type,
+	  QGraphicsItem *parent = 0);
+
+	qreal max() const {return -bounds().top();}
+	qreal avg() const {return _avg;}
+
+private:
+	QString toolTip() const;
+
+	qreal _avg;
+};
+
+#endif // CADENCEGRAPHITEM_H

src/colorbox.cpp

@@ -9,6 +9,8 @@
 ColorBox::ColorBox(QWidget *parent) : QWidget(parent)
 {
 	_color = Qt::red;
+	_alpha = true;
+
 	setSizePolicy(QSizePolicy::QSizePolicy::Minimum, QSizePolicy::Fixed);
 }
 
@@ -51,9 +53,9 @@ void ColorBox::mousePressEvent(QMouseEvent *event)
 {
 	if (event->button() != Qt::LeftButton)
 		return;
-
+	QColorDialog::ColorDialogOptions options = _alpha
-	QColor color = QColorDialog::getColor(_color, this, QString(),
+	  ? QColorDialog::ShowAlphaChannel : (QColorDialog::ColorDialogOptions)0;
-	  QColorDialog::ShowAlphaChannel);
+	QColor color = QColorDialog::getColor(_color, this, QString(), options);
 	if (color.isValid()) {
 		_color = color;
 		update();

src/colorbox.h

@@ -12,6 +12,7 @@ public:
 
 	const QColor &color() const {return _color;}
 	void setColor(const QColor &color);
+	void enableAlphaChannel(bool enable) {_alpha = enable;}
 
 	QSize sizeHint() const;
 
@@ -24,6 +25,7 @@ protected:
 
 private:
 	QColor _color;
+	bool _alpha;
 };
 
 #endif // COLORBOX_H

src/config.h

@@ -7,13 +7,15 @@
 #include <QString>
 
 #define APP_NAME        "GPXSee"
-#define APP_HOMEPAGE    "http://tumic.wz.cz/gpxsee"
+#define APP_HOMEPAGE    "http://www.gpxsee.org"
 
 #define FONT_FAMILY     "Arial"
-#define FONT_SIZE       12
+#define FONT_SIZE       12 // px
-#define SCREEN_DPI      96.0
 
+#define ELLIPSOID_FILE  QString("ellipsoids.csv")
+#define DATUM_FILE      QString("datums.csv")
 #define MAP_FILE        QString("maps.txt")
+#define MAP_DIR         QString("maps")
 #define POI_DIR         QString("POI")
 
 #if defined(Q_OS_WIN32)
@@ -28,10 +30,16 @@
 #define GLOBAL_DIR      QString("/usr/share/gpxsee")
 #endif
 
-#define USER_MAP_FILE   USER_DIR + QString("/") + MAP_FILE
+#define USER_ELLIPSOID_FILE    USER_DIR + QString("/") + ELLIPSOID_FILE
-#define USER_POI_DIR    USER_DIR + QString("/") + POI_DIR
+#define USER_DATUM_FILE        USER_DIR + QString("/") + DATUM_FILE
-#define GLOBAL_MAP_FILE GLOBAL_DIR + QString("/") + MAP_FILE
+#define USER_MAP_DIR           USER_DIR + QString("/") + MAP_DIR
-#define GLOBAL_POI_DIR  GLOBAL_DIR + QString("/") + POI_DIR
+#define USER_MAP_FILE          USER_DIR + QString("/") + MAP_FILE
-#define TILES_DIR       USER_DIR + QString("/tiles")
+#define USER_POI_DIR           USER_DIR + QString("/") + POI_DIR
+#define GLOBAL_ELLIPSOID_FILE  GLOBAL_DIR + QString("/") + ELLIPSOID_FILE
+#define GLOBAL_DATUM_FILE      GLOBAL_DIR + QString("/") + DATUM_FILE
+#define GLOBAL_MAP_DIR         GLOBAL_DIR + QString("/") + MAP_DIR
+#define GLOBAL_MAP_FILE        GLOBAL_DIR + QString("/") + MAP_FILE
+#define GLOBAL_POI_DIR         GLOBAL_DIR + QString("/") + POI_DIR
+#define TILES_DIR              USER_DIR + QString("/tiles")
 
 #endif /* CONFIG_H */

src/coordinates.cpp

@@ -17,27 +17,11 @@ qreal Coordinates::distanceTo(const Coordinates &c) const
 	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.space();
-	return dbg.maybeSpace();
 }
 
 QPair<Coordinates, Coordinates> Coordinates::boundingRect(qreal distance) const
@@ -64,6 +48,7 @@ QPair<Coordinates, Coordinates> Coordinates::boundingRect(qreal distance) const
 		maxLon = MAX_LON;
 	}
 
-	return QPair<Coordinates, Coordinates>(Coordinates(rad2deg(minLon),
+	return QPair<Coordinates, Coordinates>(Coordinates(rad2deg(qMin(minLon,
-	  rad2deg(minLat)), Coordinates(rad2deg(maxLon), rad2deg(maxLat)));
+	  maxLon)), rad2deg(qMin(minLat, maxLat))), Coordinates(rad2deg(qMax(minLon,
+	  maxLon)), rad2deg(qMax(minLat, maxLat))));
 }

src/coordinates.h

@@ -2,7 +2,7 @@
 #define COORDINATES_H
 
 #include <cmath>
-#include <QPointF>
+#include <QPair>
 #include <QDebug>
 
 class Coordinates
@@ -20,22 +20,23 @@ public:
 	qreal lat() const {return _lat;}
 
 	bool isNull() const
-		{return (std::isnan(_lon) || std::isnan(_lat)) ? true : false;}
+	  {return std::isnan(_lon) && std::isnan(_lat);}
 	bool isValid() const
-		{return (_lon >= -180.0 && _lon <= 180.0 && _lat >= -90.0
+	  {return (_lon >= -180.0 && _lon <= 180.0
-		&& _lat <= 90.0) ? true : false;}
+	    && _lat >= -90.0 && _lat <= 90.0);}
 
 	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);
+inline bool operator==(const Coordinates &c1, const Coordinates &c2)
+  {return (c1.lat() == c2.lat() && c1.lon() == c2.lon());}
+inline bool operator!=(const Coordinates &c1, const Coordinates &c2)
+  {return !(c1 == c2);}
+
 QDebug operator<<(QDebug dbg, const Coordinates &trackpoint);
 
 #endif // COORDINATES_H

src/csvparser.cpp

@@ -1,7 +1,10 @@
 #include "csvparser.h"
 
-bool CSVParser::loadFile(QFile *file)
+bool CSVParser::parse(QFile *file, QList<TrackData> &track,
+  QList<RouteData> &routes, QList<Waypoint> &waypoints)
 {
+	Q_UNUSED(track);
+	Q_UNUSED(routes);
 	bool res;
 
 	_errorLine = 1;
@@ -36,7 +39,7 @@ bool CSVParser::loadFile(QFile *file)
 			wp.setDescription(QString::fromUtf8(ba.data(), ba.size()));
 		}
 
-		_waypoints.append(wp);
+		waypoints.append(wp);
 		_errorLine++;
 	}
 

src/csvparser.h

@@ -6,12 +6,11 @@
 class CSVParser : public Parser
 {
 public:
-	CSVParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	CSVParser() : _errorLine(0) {}
-	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
-	  {_errorLine = 0;}
 	~CSVParser() {}
 
-	bool loadFile(QFile *file);
+	bool parse(QFile *file, QList<TrackData> &track, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints);
 	QString errorString() const {return _errorString;}
 	int errorLine() const {return _errorLine;}
 

src/data.cpp

@@ -11,38 +11,41 @@
 #include "data.h"
 
 
-Data::Data() : _errorLine(0)
+static GPXParser gpx;
+static TCXParser tcx;
+static KMLParser kml;
+static FITParser fit;
+static CSVParser csv;
+static IGCParser igc;
+static NMEAParser nmea;
+
+static QHash<QString, Parser*> parsers()
 {
-	_parsers.insert("gpx", new GPXParser(_trackData, _routeData,
+	QHash<QString, Parser*> hash;
-	  _waypointData));
+
-	_parsers.insert("tcx", new TCXParser(_trackData, _routeData,
+        hash.insert("gpx", &gpx);
-	  _waypointData));
+        hash.insert("tcx", &tcx);
-	_parsers.insert("kml", new KMLParser(_trackData, _routeData,
+        hash.insert("kml", &kml);
-	  _waypointData));
+        hash.insert("fit", &fit);
-	_parsers.insert("fit", new FITParser(_trackData, _routeData,
+        hash.insert("csv", &csv);
-	  _waypointData));
+        hash.insert("igc", &igc);
-	_parsers.insert("csv", new CSVParser(_trackData, _routeData,
+        hash.insert("nmea", &nmea);
-	  _waypointData));
+
-	_parsers.insert("igc", new IGCParser(_trackData, _routeData,
+	return hash;
-	  _waypointData));
-	_parsers.insert("nmea", new NMEAParser(_trackData, _routeData,
-	  _waypointData));
 }
 
+
+QHash<QString, Parser*> Data::_parsers = parsers();
+
 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()
+void Data::processData()
 {
 	for (int i = 0; i < _trackData.count(); i++)
 		_tracks.append(new Track(_trackData.at(i)));
@@ -66,8 +69,8 @@ bool Data::loadFile(const QString &fileName)
 
 	QHash<QString, Parser*>::iterator it;
 	if ((it = _parsers.find(fi.suffix().toLower())) != _parsers.end()) {
-		if (it.value()->loadFile(&file)) {
+		if (it.value()->parse(&file, _trackData, _routeData, _waypoints)) {
-			createData();
+			processData();
 			return true;
 		}
 
@@ -75,16 +78,16 @@ bool Data::loadFile(const QString &fileName)
 		_errorString = it.value()->errorString();
 	} else {
 		for (it = _parsers.begin(); it != _parsers.end(); it++) {
-			if (it.value()->loadFile(&file)) {
+			if (it.value()->parse(&file, _trackData, _routeData, _waypoints)) {
-				createData();
+				processData();
 				return true;
 			}
 			file.reset();
 		}
 
-		fprintf(stderr, "Error loading data file: %s:\n", qPrintable(fileName));
+		qWarning("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()),
+			qWarning("%s: line %d: %s\n", qPrintable(it.key()),
 			  it.value()->errorLine(), qPrintable(it.value()->errorString()));
 
 		_errorLine = 0;
@@ -93,3 +96,23 @@ bool Data::loadFile(const QString &fileName)
 
 	return false;
 }
+
+QString Data::formats()
+{
+	return tr("Supported files (*.csv *.fit *.gpx *.igc *.kml *.nmea *.tcx)")
+	  + ";;" + tr("CSV files (*.csv)") + ";;" + tr("FIT files (*.fit)") + ";;"
+	  + tr("GPX files (*.gpx)") + ";;" + tr("IGC files (*.igc)") + ";;"
+	  + tr("KML files (*.kml)") + ";;" + tr("NMEA files (*.nmea)") + ";;"
+	  + tr("TCX files (*.tcx)") + ";;" + tr("All files (*)");
+}
+
+QStringList Data::filter()
+{
+	QStringList filter;
+	QHash<QString, Parser*>::iterator it;
+
+	for (it = _parsers.begin(); it != _parsers.end(); it++)
+		filter << QString("*.%1").arg(it.key());
+
+	return filter;
+}

src/data.h

@@ -6,16 +6,19 @@
 #include <QHash>
 #include <QPointF>
 #include <QString>
+#include <QStringList>
 #include "waypoint.h"
 #include "track.h"
 #include "route.h"
 #include "parser.h"
 
 
-class Data
+class Data : public QObject
 {
+	Q_OBJECT
+
 public:
-	Data();
+	Data(QObject *parent = 0) : QObject(parent), _errorLine(0) {}
 	~Data();
 
 	bool loadFile(const QString &fileName);
@@ -24,21 +27,25 @@ public:
 
 	const QList<Track*> &tracks() const {return _tracks;}
 	const QList<Route*> &routes() const {return _routes;}
-	const QList<Waypoint> &waypoints() const {return _waypointData;}
+	const QList<Waypoint> &waypoints() const {return _waypoints;}
+
+	static QString formats();
+	static QStringList filter();
 
 private:
-	void createData();
+	void processData();
 
 	QString _errorString;
 	int _errorLine;
-	QHash<QString, Parser*> _parsers;
 
 	QList<Track*> _tracks;
 	QList<Route*> _routes;
+	QList<Waypoint> _waypoints;
 
 	QList<TrackData> _trackData;
 	QList<RouteData> _routeData;
-	QList<Waypoint> _waypointData;
+
+	static QHash<QString, Parser*> _parsers;
 };
 
 #endif // DATA_H

src/datum.cpp

@@ -0,0 +1,121 @@
+#include <cmath>
+#include <QFile>
+#include "wgs84.h"
+#include "rd.h"
+#include "datum.h"
+
+
+static QMap<QString, Datum> WGS84()
+{
+	QMap<QString, Datum> map;
+	map.insert("WGS 84", Datum(Ellipsoid(WGS84_RADIUS, WGS84_FLATTENING),
+	  0.0, 0.0, 0.0));
+	return map;
+}
+
+QMap<QString, Datum> Datum::_datums = WGS84();
+QString Datum::_errorString;
+int Datum::_errorLine = 0;
+
+Datum Datum::datum(const QString &name)
+{
+	QMap<QString, Datum>::const_iterator it = _datums.find(name);
+
+	if (it == _datums.end())
+		return Datum();
+
+	return it.value();
+}
+
+bool Datum::loadList(const QString &path)
+{
+	QFile file(path);
+	bool res;
+
+	if (!file.open(QFile::ReadOnly)) {
+		_errorString = qPrintable(file.errorString());
+		return false;
+	}
+
+	_errorLine = 1;
+	_errorString.clear();
+
+	while (!file.atEnd()) {
+		QByteArray line = file.readLine();
+		QList<QByteArray> list = line.split(',');
+		if (list.size() != 6) {
+			_errorString = "Format error";
+			return false;
+		}
+
+		int eid = list[2].trimmed().toInt(&res);
+		if (!res) {
+			_errorString = "Invalid ellipsoid id";
+			return false;
+		}
+		double dx = list[3].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid dx";
+			return false;
+		}
+		double dy = list[4].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid dy";
+			return false;
+		}
+		double dz = list[5].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid dz";
+			return false;
+		}
+
+		Ellipsoid e = Ellipsoid::ellipsoid(eid);
+		if (e.isNull()) {
+			_errorString = "Unknown ellipsoid ID";
+			return false;
+		}
+
+		Datum d(e, dx, dy, dz);
+		_datums.insert(list[0].trimmed(), d);
+
+		_errorLine++;
+	}
+
+	return true;
+}
+
+// Abridged Molodensky transformation
+Coordinates Datum::toWGS84(const Coordinates &c) const
+{
+	if (_ellipsoid.radius() == WGS84_RADIUS
+	  && _ellipsoid.flattening() == WGS84_FLATTENING
+	  && _dx == 0.0 && _dy == 0.0 && _dz == 0.0)
+		return c;
+
+	double rlat = deg2rad(c.lat());
+	double rlon = deg2rad(c.lon());
+
+	double slat = sin(rlat);
+	double clat = cos(rlat);
+	double slon = sin(rlon);
+	double clon = cos(rlon);
+	double ssqlat = slat * slat;
+
+	double from_f = ellipsoid().flattening();
+	double df = WGS84_FLATTENING - from_f;
+	double from_a = ellipsoid().radius();
+	double da = WGS84_RADIUS - from_a;
+	double from_esq = ellipsoid().flattening()
+	  * (2.0 - ellipsoid().flattening());
+	double adb = 1.0 / (1.0 - from_f);
+	double rn = from_a / sqrt(1 - from_esq * ssqlat);
+	double rm = from_a * (1 - from_esq) / pow((1 - from_esq * ssqlat), 1.5);
+	double from_h = 0.0;
+
+	double dlat = (-dx() * slat * clon - dy() * slat * slon + dz() * clat + da
+	  * rn * from_esq * slat * clat / from_a + df * (rm * adb + rn / adb) * slat
+	  * clat) / (rm + from_h);
+	double dlon = (-dx() * slon + dy() * clon) / ((rn + from_h) * clat);
+
+	return Coordinates(c.lon() + rad2deg(dlon), c.lat() + rad2deg(dlat));
+}

src/datum.h

@@ -0,0 +1,40 @@
+#ifndef DATUM_H
+#define DATUM_H
+
+#include <QMap>
+#include "ellipsoid.h"
+#include "coordinates.h"
+
+class Datum
+{
+public:
+	Datum() : _ellipsoid(Ellipsoid()), _dx(0.0), _dy(0.0), _dz(0.0) {}
+	Datum(const Ellipsoid &ellipsoid, double dx, double dy, double dz)
+	  : _ellipsoid(ellipsoid), _dx(dx), _dy(dy), _dz(dz) {}
+
+	const Ellipsoid &ellipsoid() const {return _ellipsoid;}
+	double dx() const {return _dx;}
+	double dy() const {return _dy;}
+	double dz() const {return _dz;}
+
+	bool isNull() const
+	  {return (_ellipsoid.isNull() && _dx == 0.0 && _dy == 0.0 && _dz == 0.0);}
+
+	Coordinates toWGS84(const Coordinates &c) const;
+
+	static bool loadList(const QString &path);
+	static const QString &errorString() {return _errorString;}
+	static int errorLine() {return _errorLine;}
+
+	static Datum datum(const QString &name);
+
+private:
+	Ellipsoid _ellipsoid;
+	double _dx, _dy, _dz;
+
+	static QMap<QString, Datum> _datums;
+	static QString _errorString;
+	static int _errorLine;
+};
+
+#endif // DATUM_H

src/downloader.cpp

@@ -1,5 +1,7 @@
 #include <QFile>
 #include <QFileInfo>
+#include <QNetworkRequest>
+#include <QNetworkReply>
 #include "config.h"
 #include "downloader.h"
 
@@ -25,7 +27,7 @@
 #define MAX_REDIRECT_LEVEL 5
 
 
-Downloader::Downloader()
+Downloader::Downloader(QObject *parent) : QObject(parent)
 {
 	connect(&_manager, SIGNAL(finished(QNetworkReply*)),
 			SLOT(downloadFinished(QNetworkReply*)));
@@ -59,7 +61,7 @@ bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
 	QFile file(filename);
 
 	if (!file.open(QIODevice::WriteOnly)) {
-		fprintf(stderr, "Error writing map tile: %s: %s\n",
+		qWarning("Error writing map tile: %s: %s\n",
 		  qPrintable(filename), qPrintable(file.errorString()));
 		return false;
 	}
@@ -78,11 +80,11 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 		QUrl origin = reply->request().attribute(ATTR_ORIGIN).toUrl();
 		if (origin.isEmpty()) {
 			_errorDownloads.insert(url);
-			fprintf(stderr, "Error downloading map tile: %s: %s\n",
+			qWarning("Error downloading map tile: %s: %s\n",
 			  url.toEncoded().constData(), qPrintable(reply->errorString()));
 		} else {
 			_errorDownloads.insert(origin);
-			fprintf(stderr, "Error downloading map tile: %s -> %s: %s\n",
+			qWarning("Error downloading map tile: %s -> %s: %s\n",
 			  origin.toEncoded().constData(), url.toEncoded().constData(),
 			  qPrintable(reply->errorString()));
 		}
@@ -97,11 +99,11 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 
 			if (location == url) {
 				_errorDownloads.insert(url);
-				fprintf(stderr, "Error downloading map tile: %s: "
+				qWarning("Error downloading map tile: %s: "
 				  "redirect loop\n", url.toEncoded().constData());
 			} else if (level >= MAX_REDIRECT_LEVEL) {
 				_errorDownloads.insert(origin);
-				fprintf(stderr, "Error downloading map tile: %s: "
+				qWarning("Error downloading map tile: %s: "
 				  "redirect level limit reached\n",
 				  origin.toEncoded().constData());
 			} else {

src/downloader.h

@@ -2,13 +2,14 @@
 #define DOWNLOADER_H
 
 #include <QNetworkAccessManager>
-#include <QNetworkRequest>
-#include <QNetworkReply>
 #include <QUrl>
+#include <QList>
 #include <QMap>
 #include <QSet>
 
 
+class QNetworkReply;
+
 class Download
 {
 public:
@@ -28,8 +29,8 @@ class Downloader : public QObject
 	Q_OBJECT
 
 public:
-	static Downloader& instance()
+	Downloader(QObject *parent = 0);
-		{static Downloader i; return i;}
+
 	bool get(const QList<Download> &list);
 
 signals:
@@ -56,10 +57,6 @@ private:
 		int _level;
 	};
 
-	Downloader();
-	Downloader(Downloader const&);
-	void operator=(Downloader const&);
-
 	bool doDownload(const Download &dl, const Redirect &redirect = Redirect());
 	bool saveToDisk(const QString &filename, QIODevice *data);
 

src/elevationgraph.cpp

@@ -1,6 +1,8 @@
 #include <cmath>
 #include "config.h"
 #include "data.h"
+#include "tooltip.h"
+#include "elevationgraphitem.h"
 #include "elevationgraph.h"
 
 
@@ -42,11 +44,8 @@ ElevationGraph::ElevationGraph(QWidget *parent) : GraphTab(parent)
 	_showRoutes = true;
 	_showTracks = true;
 
-	_units = Metric;
+	setYUnits(Metric);
-
-	setYUnits();
 	setYLabel(tr("Elevation"));
-
 	setMinYRange(50.0);
 }
 
@@ -68,43 +67,25 @@ void ElevationGraph::setInfo()
 
 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();
+	ElevationGraphItem *gi = new ElevationGraphItem(graph, _graphType);
-	for (int j = 1; j < graph.size(); j++) {
+	GraphView::addGraph(gi, path, type);
-		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;
+		_trackAscent += gi->ascent();
-		_trackDescent += descent;
+		_trackDescent += gi->descent();
-		_trackMax = nMax(_trackMax, max);
+		_trackMax = nMax(_trackMax, gi->max());
-		_trackMin = nMin(_trackMin, min);
+		_trackMin = nMin(_trackMin, gi->min());
 	} else {
-		_routeAscent += ascent;
+		_routeAscent += gi->ascent();
-		_routeDescent += descent;
+		_routeDescent += gi->descent();
-		_routeMax = nMax(_routeMax, max);
+		_routeMax = nMax(_routeMax, gi->max());
-		_routeMin = nMin(_routeMin, min);
+		_routeMin = nMin(_routeMin, gi->min());
 	}
-
-	GraphView::loadGraph(graph, path, type);
 }
 
 void ElevationGraph::loadData(const Data &data, const QList<PathItem *> &paths)
@@ -135,9 +116,9 @@ void ElevationGraph::clear()
 	GraphView::clear();
 }
 
-void ElevationGraph::setYUnits()
+void ElevationGraph::setYUnits(Units units)
 {
-	if (_units == Metric) {
+	if (units == Metric) {
 		GraphView::setYUnits(tr("m"));
 		setYScale(1);
 	} else {
@@ -146,15 +127,12 @@ void ElevationGraph::setYUnits()
 	}
 }
 
-void ElevationGraph::setUnits(enum Units units)
+void ElevationGraph::setUnits(Units units)
 {
-	_units = units;
+	setYUnits(units);
-
-	setYUnits();
 	setInfo();
-	GraphView::setUnits(units);
 
-	redraw();
+	GraphView::setUnits(units);
 }
 
 void ElevationGraph::showTracks(bool show)

src/elevationgraph.h

@@ -25,7 +25,7 @@ private:
 	qreal ascent() const;
 	qreal descent() const;
 
-	void setYUnits();
+	void setYUnits(Units units);
 	void setInfo();
 
 	void loadGraph(const Graph &graph, Type type, PathItem *path);
@@ -35,7 +35,6 @@ private:
 	qreal _trackMax, _routeMax;
 	qreal _trackMin, _routeMin;
 
-	enum Units _units;
 	bool _showTracks, _showRoutes;
 };
 

src/elevationgraphitem.cpp

@@ -0,0 +1,43 @@
+#include "tooltip.h"
+#include "elevationgraphitem.h"
+
+ElevationGraphItem::ElevationGraphItem(const Graph &graph, GraphType type,
+  QGraphicsItem *parent) : GraphItem(graph, type, parent)
+{
+	_ascent = _descent = 0;
+
+	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;
+	}
+
+	setToolTip(toolTip(Metric));
+}
+
+QString ElevationGraphItem::toolTip(Units units) const
+{
+	ToolTip tt;
+	qreal scale = (units == Metric) ? 1.0 : M2FT;
+	QString su = (units == Metric) ? tr("m") : tr("ft");
+
+	tt.insert(tr("Ascent"), QString::number(ascent() * scale, 'f', 0)
+	  + UNIT_SPACE + su);
+	tt.insert(tr("Descent"), QString::number(descent() * scale, 'f', 0)
+	  + UNIT_SPACE + su);
+	tt.insert(tr("Maximum"), QString::number(max() * scale, 'f', 0)
+	  + UNIT_SPACE + su);
+	tt.insert(tr("Minimum"), QString::number(min() * scale, 'f', 0)
+	  + UNIT_SPACE + su);
+
+	return tt.toString();
+}
+
+void ElevationGraphItem::setUnits(Units units)
+{
+	setToolTip(toolTip(units));
+}

src/elevationgraphitem.h

@@ -0,0 +1,27 @@
+#ifndef ELEVATIONGRAPHITEM_H
+#define ELEVATIONGRAPHITEM_H
+
+#include "graphitem.h"
+
+class ElevationGraphItem : public GraphItem
+{
+	Q_OBJECT
+
+public:
+	ElevationGraphItem(const Graph &graph, GraphType type,
+	  QGraphicsItem *parent = 0);
+
+	qreal ascent() const {return _ascent;}
+	qreal descent() const {return _descent;}
+	qreal min() const {return -bounds().bottom();}
+	qreal max() const {return -bounds().top();}
+
+	void setUnits(Units units);
+
+private:
+	QString toolTip(Units units) const;
+
+	qreal _ascent, _descent;
+};
+
+#endif // ELEVATIONGRAPHITEM_H

src/ellipsoid.cpp

@@ -0,0 +1,62 @@
+#include <QFile>
+#include "ellipsoid.h"
+
+QMap<int, Ellipsoid> Ellipsoid::_ellipsoids;
+QString Ellipsoid::_errorString;
+int Ellipsoid::_errorLine = 0;
+
+Ellipsoid Ellipsoid::ellipsoid(int id)
+{
+	QMap<int, Ellipsoid>::const_iterator it = _ellipsoids.find(id);
+
+	if (it == _ellipsoids.end())
+		return Ellipsoid();
+
+	return it.value();
+}
+
+bool Ellipsoid::loadList(const QString &path)
+{
+	QFile file(path);
+	bool res;
+
+	if (!file.open(QFile::ReadOnly)) {
+		_errorString = qPrintable(file.errorString());
+		return false;
+	}
+
+	_errorLine = 1;
+	_errorString.clear();
+
+	while (!file.atEnd()) {
+		QByteArray line = file.readLine();
+		QList<QByteArray> list = line.split(',');
+		if (list.size() != 4) {
+			_errorString = "Format error";
+			return false;
+		}
+
+		int id = list[0].trimmed().toInt(&res);
+		if (!res) {
+			_errorString = "Invalid ellipsoid id";
+			return false;
+		}
+		double radius = list[2].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid ellipsoid radius";
+			return false;
+		}
+		double flattening = list[3].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid ellipsoid flattening";
+			return false;
+		}
+
+		Ellipsoid e(radius, 1.0/flattening);
+		_ellipsoids.insert(id, e);
+
+		_errorLine++;
+	}
+
+	return true;
+}

src/ellipsoid.h

@@ -0,0 +1,34 @@
+#ifndef ELLIPSOID_H
+#define ELLIPSOID_H
+
+#include <QString>
+#include <QMap>
+
+class Ellipsoid
+{
+public:
+	Ellipsoid() : _radius(0.0), _flattening(0.0) {}
+	Ellipsoid(double radius, double flattening)
+	  : _radius(radius), _flattening(flattening) {}
+
+	double radius() const {return _radius;}
+	double flattening() const {return _flattening;}
+
+	bool isNull() const {return (_radius == 0.0 && _flattening == 0.0);}
+
+	static bool loadList(const QString &path);
+	static const QString &errorString() {return _errorString;}
+	static int errorLine() {return _errorLine;}
+
+	static Ellipsoid ellipsoid(int id);
+
+private:
+	double _radius;
+	double _flattening;
+
+	static QMap<int, Ellipsoid> _ellipsoids;
+	static QString _errorString;
+	static int _errorLine;
+};
+
+#endif // ELLIPSOID_H

src/emptymap.cpp

@@ -0,0 +1,86 @@
+#include <QtGlobal>
+#include <QPainter>
+#include "rectc.h"
+#include "misc.h"
+#include "rd.h"
+#include "wgs84.h"
+#include "coordinates.h"
+#include "mercator.h"
+#include "emptymap.h"
+
+
+#define SCALE_MIN 0.5
+#define SCALE_MAX 1.0E-6
+
+EmptyMap::EmptyMap(QObject *parent) : Map(parent)
+{
+	_scale = SCALE_MAX;
+}
+
+QRectF EmptyMap::bounds() const
+{
+	return scaled(QRectF(QPointF(-180, -180), QSizeF(360, 360)), 1.0/_scale);
+}
+
+qreal EmptyMap::zoomFit(const QSize &size, const RectC &br)
+{
+	if (!br.isValid())
+		_scale = SCALE_MAX;
+	else {
+		QRectF tbr(Mercator().ll2xy(br.topLeft()),
+		  Mercator().ll2xy(br.bottomRight()));
+		QPointF sc(tbr.width() / size.width(), tbr.height() / size.height());
+		_scale = qMax(sc.x(), sc.y());
+	}
+
+	_scale = qMax(_scale, SCALE_MAX);
+	_scale = qMin(_scale, SCALE_MIN);
+
+	return _scale;
+}
+
+qreal EmptyMap::zoomFit(qreal resolution, const Coordinates &c)
+{
+	_scale = (360.0 * resolution) / (WGS84_RADIUS * 2 * M_PI
+	  * cos(deg2rad(c.lat())));
+
+	_scale = qMax(_scale, SCALE_MAX);
+	_scale = qMin(_scale, SCALE_MIN);
+
+	return _scale;
+}
+
+qreal EmptyMap::resolution(const QPointF &p) const
+{
+	return (WGS84_RADIUS * 2 * M_PI * _scale / 360.0
+	  * cos(2.0 * atan(exp(deg2rad(-p.y() * _scale))) - M_PI/2));
+}
+
+qreal EmptyMap::zoomIn()
+{
+	_scale = qMax(_scale / 2.0, SCALE_MAX);
+	return _scale;
+}
+
+qreal EmptyMap::zoomOut()
+{
+	_scale = qMin(_scale * 2.0, SCALE_MIN);
+	return _scale;
+}
+
+void EmptyMap::draw(QPainter *painter, const QRectF &rect)
+{
+	painter->fillRect(rect, _backgroundColor);
+}
+
+QPointF EmptyMap::ll2xy(const Coordinates &c)
+{
+	QPointF m = Mercator().ll2xy(c);
+	return QPointF(m.x() / _scale, m.y() / -_scale);
+}
+
+Coordinates EmptyMap::xy2ll(const QPointF &p)
+{
+	QPointF m(p.x() * _scale, -p.y() * _scale);
+	return Mercator().xy2ll(m);
+}

src/emptymap.h

@@ -0,0 +1,34 @@
+#ifndef EMPTYMAP_H
+#define EMPTYMAP_H
+
+#include "map.h"
+
+class EmptyMap : public Map
+{
+	Q_OBJECT
+
+public:
+	EmptyMap(QObject *parent = 0);
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const {return _scale;}
+	qreal zoomFit(const QSize &size, const RectC &br);
+	qreal zoomFit(qreal resolution, const Coordinates &c);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c);
+	Coordinates xy2ll(const QPointF &p);
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+private:
+	QString _name;
+	qreal _scale;
+};
+
+#endif // EMPTYMAP_H

src/exportdialog.cpp

@@ -26,15 +26,28 @@ ExportDialog::ExportDialog(Export *exp, QWidget *parent)
 	_fileSelect->setFile(_export->fileName);
 
 	_paperSize = new QComboBox();
+	_paperSize->addItem("A2", QPrinter::A2);
 	_paperSize->addItem("A3", QPrinter::A3);
 	_paperSize->addItem("A4", QPrinter::A4);
 	_paperSize->addItem("A5", QPrinter::A5);
+	_paperSize->addItem("A6", QPrinter::A6);
+	_paperSize->addItem("B3", QPrinter::B3);
+	_paperSize->addItem("B4", QPrinter::B4);
+	_paperSize->addItem("B5", QPrinter::B5);
+	_paperSize->addItem("B6", QPrinter::B6);
 	_paperSize->addItem("Tabloid", QPrinter::Tabloid);
 	_paperSize->addItem("Legal", QPrinter::Legal);
 	_paperSize->addItem("Letter", QPrinter::Letter);
 	if ((index = _paperSize->findData(_export->paperSize)) >= 0)
 		_paperSize->setCurrentIndex(index);
 
+	_resolution = new QComboBox();
+	_resolution->addItem("300 DPI", 300);
+	_resolution->addItem("600 DPI", 600);
+	_resolution->addItem("1200 DPI", 1200);
+	if ((index = _resolution->findData(_export->resolution)) >= 0)
+		_resolution->setCurrentIndex(index);
+
 	_portrait = new QRadioButton(tr("Portrait"));
 	_landscape = new QRadioButton(tr("Landscape"));
 	QHBoxLayout *orientationLayout = new QHBoxLayout();
@@ -81,6 +94,7 @@ ExportDialog::ExportDialog(Export *exp, QWidget *parent)
 #endif // Q_OS_MAC
 	QFormLayout *pageSetupLayout = new QFormLayout;
 	pageSetupLayout->addRow(tr("Page size:"), _paperSize);
+	pageSetupLayout->addRow(tr("Resolution:"), _resolution);
 	pageSetupLayout->addRow(tr("Orientation:"), orientationLayout);
 	pageSetupLayout->addRow(tr("Margins:"), marginsLayout);
 #ifdef Q_OS_MAC
@@ -161,9 +175,11 @@ void ExportDialog::accept()
 	  ? QPrinter::Portrait : QPrinter::Landscape;
 	QPrinter::PaperSize paperSize = static_cast<QPrinter::PaperSize>
 	  (_paperSize->itemData(_paperSize->currentIndex()).toInt());
+	int resolution = _resolution->itemData(_resolution->currentIndex()).toInt();
 
 	_export->fileName = _fileSelect->file();
 	_export->paperSize = paperSize;
+	_export->resolution = resolution;
 	_export->orientation = orientation;
 	if (_export->units == Imperial)
 		_export->margins = MarginsF(_leftMargin->value() / MM2IN,

src/exportdialog.h

@@ -16,6 +16,7 @@ struct Export {
 	QPrinter::PaperSize paperSize;
 	QPrinter::Orientation orientation;
 	MarginsF margins;
+	int resolution;
 
 	Units units;
 };
@@ -37,6 +38,7 @@ private:
 
 	FileSelectWidget *_fileSelect;
 	QComboBox *_paperSize;
+	QComboBox *_resolution;
 	QRadioButton *_portrait;
 	QRadioButton *_landscape;
 	QDoubleSpinBox *_topMargin;

src/fitparser.cpp

@@ -10,8 +10,7 @@ const quint32 FIT_MAGIC = 0x5449462E; // .FIT
 #define TIMESTAMP_FIELD 253
 
 
-FITParser::FITParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+FITParser::FITParser()
-  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
 {
 	memset(_defs, 0, sizeof(_defs));
 
@@ -36,8 +35,7 @@ void FITParser::clearDefinitions()
 void FITParser::warning(const char *text) const
 {
 	const QFile *file = static_cast<QFile *>(_device);
-	fprintf(stderr, "%s:%d: %s\n", qPrintable(file->fileName()),
+	qWarning("%s:%d: %s\n", qPrintable(file->fileName()), _len, text);
-	  _len, text);
 }
 
 bool FITParser::readData(char *data, size_t size)
@@ -192,7 +190,8 @@ bool FITParser::readField(Field *f, quint32 &val)
 	return ret;
 }
 
-bool FITParser::parseData(MessageDefinition *def, quint8 offset)
+bool FITParser::parseData(TrackData &track, MessageDefinition *def,
+  quint8 offset)
 {
 	Field *field;
 	quint32 timestamp = _timestamp + offset;
@@ -269,7 +268,7 @@ bool FITParser::parseData(MessageDefinition *def, quint8 offset)
 		if (trackpoint.coordinates().isValid()) {
 			trackpoint.setTimestamp(QDateTime::fromTime_t(timestamp
 			  + 631065600));
-			_tracks.last().append(trackpoint);
+			track.append(trackpoint);
 		} else {
 			if (trackpoint.coordinates().isNull())
 				warning("Missing coordinates");
@@ -283,21 +282,21 @@ bool FITParser::parseData(MessageDefinition *def, quint8 offset)
 	return true;
 }
 
-bool FITParser::parseDataMessage(quint8 header)
+bool FITParser::parseDataMessage(TrackData &track, quint8 header)
 {
 	int local_id = header & 0xf;
 	MessageDefinition* def = &_defs[local_id];
-	return parseData(def, 0);
+	return parseData(track, def, 0);
 }
 
-bool FITParser::parseCompressedMessage(quint8 header)
+bool FITParser::parseCompressedMessage(TrackData &track, quint8 header)
 {
 	int local_id = (header >> 5) & 3;
 	MessageDefinition* def = &_defs[local_id];
-	return parseData(def, header & 0x1f);
+	return parseData(track, def, header & 0x1f);
 }
 
-bool FITParser::parseRecord()
+bool FITParser::parseRecord(TrackData &track)
 {
 	quint8 header;
 
@@ -305,11 +304,11 @@ bool FITParser::parseRecord()
 		return false;
 
 	if (header & 0x80)
-		return parseCompressedMessage(header);
+		return parseCompressedMessage(track, header);
 	else if (header & 0x40)
 		return parseDefinitionMessage(header);
 	else
-		return parseDataMessage(header);
+		return parseDataMessage(track, header);
 }
 
 bool FITParser::parseHeader()
@@ -338,8 +337,11 @@ bool FITParser::parseHeader()
 	return true;
 }
 
-bool FITParser::loadFile(QFile *file)
+bool FITParser::parse(QFile *file, QList<TrackData> &tracks,
+  QList<RouteData> &routes, QList<Waypoint> &waypoints)
 {
+	Q_UNUSED(routes);
+	Q_UNUSED(waypoints);
 	bool ret = true;
 
 	_device = file;
@@ -349,10 +351,11 @@ bool FITParser::loadFile(QFile *file)
 	if (!parseHeader())
 		return false;
 
-	_tracks.append(TrackData());
+	tracks.append(TrackData());
+	TrackData &track = tracks.last();
 
 	while (_len)
-		if ((ret = parseRecord()) == false)
+		if ((ret = parseRecord(track)) == false)
 			break;
 
 	clearDefinitions();

src/fitparser.h

@@ -6,37 +6,37 @@
 class FITParser : public Parser
 {
 public:
-	FITParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	FITParser();
-	  QList<Waypoint> &waypoints);
 	~FITParser() {}
 
-	bool loadFile(QFile *file);
+	bool parse(QFile *file, QList<TrackData> &tracks, QList<RouteData> &routes,
+	  QList<Waypoint> &waypoints);
 	QString errorString() const {return _errorString;}
 	int errorLine() const {return 0;}
 
 private:
-	typedef struct {
+	struct FileHeader {
 		quint8 headerSize;
 		quint8 protocolVersion;
 		quint16 profileVersion;
 		quint32 dataSize;
 		quint32 magic;
-	} FileHeader;
+	};
 
-	typedef struct {
+	struct Field {
 		quint8 id;
 		quint8 size;
 		quint8 type;
-	} Field;
+	};
 
-	typedef struct {
+	struct MessageDefinition {
 		quint8 endian;
 		quint16 globalId;
 		quint8 numFields;
 		Field *fields;
 		quint8 numDevFields;
 		Field *devFields;
-	} MessageDefinition;
+	};
 
 
 	void warning(const char *text) const;
@@ -47,11 +47,11 @@ private:
 	bool skipValue(size_t size);
 
 	bool parseHeader();
-	bool parseRecord();
+	bool parseRecord(TrackData &track);
 	bool parseDefinitionMessage(quint8 header);
-	bool parseCompressedMessage(quint8 header);
+	bool parseCompressedMessage(TrackData &track, quint8 header);
-	bool parseDataMessage(quint8 header);
+	bool parseDataMessage(TrackData &track, quint8 header);
-	bool parseData(MessageDefinition *def, quint8 offset);
+	bool parseData(TrackData &track, MessageDefinition *def, quint8 offset);
 	bool readField(Field *f, quint32 &val);
 
 	QIODevice *_device;

src/format.cpp

@@ -2,7 +2,7 @@
 #include "coordinates.h"
 #include "format.h"
 
-QString Format::timeSpan(qreal time)
+QString Format::timeSpan(qreal time, bool full)
 {
 	unsigned h, m, s;
 
@@ -10,8 +10,12 @@ QString Format::timeSpan(qreal time)
 	m = (time - (h * 3600)) / 60;
 	s = time - (h * 3600) - (m * 60);
 
-	return QString("%1:%2:%3").arg(h).arg(m, 2, 10, QChar('0'))
+	if (full || h)
-	  .arg(s, 2, 10, QChar('0'));
+		return QString("%1:%2:%3").arg(h, 2, 10, QChar('0'))
+		  .arg(m, 2, 10, QChar('0')).arg(s, 2, 10, QChar('0'));
+	else
+		return QString("%1:%2").arg(m, 2, 10, QChar('0'))
+		  .arg(s, 2, 10, QChar('0'));
 }
 
 QString Format::distance(qreal value, Units units)

src/format.h

@@ -8,7 +8,7 @@ class Coordinates;
 
 namespace Format
 {
-	QString timeSpan(qreal time);
+	QString timeSpan(qreal time, bool full = true);
 	QString distance(qreal value, Units units);
 	QString elevation(qreal value, Units units);
 	QString coordinates(const Coordinates &value);

src/gpxparser.cpp

@@ -167,39 +167,36 @@ void GPXParser::track(TrackData &track)
 	}
 }
 
-void GPXParser::gpx()
+void GPXParser::gpx(QList<TrackData> &tracks, QList<RouteData> &routes,
+  QList<Waypoint> &waypoints)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "trk") {
-			_tracks.append(TrackData());
+			tracks.append(TrackData());
-			track(_tracks.back());
+			track(tracks.back());
 		} else if (_reader.name() == "rte") {
-			_routes.append(RouteData());
+			routes.append(RouteData());
-			routepoints(_routes.back());
+			routepoints(routes.back());
 		} else if (_reader.name() == "wpt") {
-			_waypoints.append(Waypoint(coordinates()));
+			waypoints.append(Waypoint(coordinates()));
-			waypointData(_waypoints.last());
+			waypointData(waypoints.last());
 		} else
 			_reader.skipCurrentElement();
 	}
 }
 
-bool GPXParser::parse()
+bool GPXParser::parse(QFile *file, QList<TrackData> &tracks,
+  QList<RouteData> &routes, QList<Waypoint> &waypoints)
 {
+	_reader.clear();
+	_reader.setDevice(file);
+
 	if (_reader.readNextStartElement()) {
 		if (_reader.name() == "gpx")
-			gpx();
+			gpx(tracks, routes, waypoints);
 		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

@@ -8,17 +8,16 @@
 class GPXParser : public Parser
 {
 public:
-	GPXParser(QList<TrackData> &tracks, QList<RouteData> &routes,
-	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints) {}
 	~GPXParser() {}
 
-	bool loadFile(QFile *file);
+	bool parse(QFile *file, QList<TrackData> &tracks,
+	  QList<RouteData> &routes, QList<Waypoint> &waypoints);
 	QString errorString() const {return _reader.errorString();}
 	int errorLine() const {return _reader.lineNumber();}
 
 private:
-	bool parse();
+	void gpx(QList<TrackData> &tracks, QList<RouteData> &routes,
-	void gpx();
+	  QList<Waypoint> &waypoints);
 	void track(TrackData &track);
 	void trackpoints(TrackData &track);
 	void routepoints(RouteData &route);

src/graph.cpp

@@ -4,6 +4,5 @@ QDebug operator<<(QDebug dbg, const GraphPoint &point)
 {
 	dbg.nospace() << "GraphPoint(" << point.s() << ", " << point.t() << ", "
 	  << point.y() << ")";
-
+	return dbg.space();
-	return dbg.maybeSpace();
 }

src/graph.h

@@ -31,22 +31,6 @@ private:
 Q_DECLARE_TYPEINFO(GraphPoint, Q_PRIMITIVE_TYPE);
 QDebug operator<<(QDebug dbg, const GraphPoint &point);
 
-
+typedef QVector<GraphPoint> Graph;
-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

@@ -2,7 +2,7 @@
 #include "graphitem.h"
 
 
-GraphItem::GraphItem(const Graph &graph, QGraphicsItem *parent)
+GraphItem::GraphItem(const Graph &graph, GraphType type, QGraphicsItem *parent)
   : QGraphicsObject(parent)
 {
 	_id = 0;
@@ -10,14 +10,32 @@ GraphItem::GraphItem(const Graph &graph, QGraphicsItem *parent)
 
 	_pen = QPen(Qt::black, _width);
 
-	_type = Distance;
+	_type = type;
 	_graph = graph;
 	_sx = 1.0; _sy = 1.0;
 
+	_time = true;
+	for (int i = 0; i < _graph.size(); i++) {
+		if (std::isnan(_graph.at(i).t())) {
+			_time = false;
+			break;
+		}
+	}
+
 	setZValue(1.0);
 
 	updatePath();
+	updateShape();
 	updateBounds();
+
+	setAcceptHoverEvents(true);
+}
+
+void GraphItem::updateShape()
+{
+	QPainterPathStroker s;
+	s.setWidth(_width + 1);
+	_shape = s.createStroke(_path);
 }
 
 void GraphItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
@@ -38,25 +56,37 @@ void GraphItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 
 void GraphItem::setGraphType(GraphType type)
 {
+	if (type == _type)
+		return;
+
 	prepareGeometryChange();
 
 	_type = type;
 	updatePath();
+	updateShape();
 	updateBounds();
 }
 
 void GraphItem::setColor(const QColor &color)
 {
+	if (_pen.color() == color)
+		return;
+
 	_pen.setColor(color);
 	update();
 }
 
 void GraphItem::setWidth(int width)
 {
+	if (width == _width)
+		return;
+
 	prepareGeometryChange();
 
 	_width = width;
 	_pen.setWidth(width);
+
+	updateShape();
 }
 
 qreal GraphItem::yAtX(qreal x)
@@ -124,7 +154,7 @@ qreal GraphItem::distanceAtTime(qreal time)
 void GraphItem::emitSliderPositionChanged(qreal pos)
 {
 	if (_type == Time) {
-		if (_graph.hasTime()) {
+		if (_time) {
 			if (pos >= _graph.first().t() && pos <= _graph.last().t())
 				emit sliderPositionChanged(distanceAtTime(pos));
 			else
@@ -135,9 +165,9 @@ void GraphItem::emitSliderPositionChanged(qreal pos)
 		emit sliderPositionChanged(pos);
 }
 
-void GraphItem::selected(bool selected)
+void GraphItem::hover(bool hover)
 {
-	if (selected) {
+	if (hover) {
 		_pen.setWidth(_width + 1);
 		setZValue(zValue() + 1.0);
 	} else {
@@ -157,13 +187,14 @@ void GraphItem::setScale(qreal sx, qreal sy)
 
 	_sx = sx; _sy = sy;
 	updatePath();
+	updateShape();
 }
 
 void GraphItem::updatePath()
 {
 	_path = QPainterPath();
 
-	if (_type == Time && !_graph.hasTime())
+	if (_type == Time && !_time)
 		return;
 
 	_path.moveTo(_graph.first().x(_type) * _sx, -_graph.first().y() * _sy);
@@ -173,7 +204,7 @@ void GraphItem::updatePath()
 
 void GraphItem::updateBounds()
 {
-	if (_type == Time && !_graph.hasTime()) {
+	if (_type == Time && !_time) {
 		_bounds = QRectF();
 		return;
 	}
@@ -191,3 +222,25 @@ void GraphItem::updateBounds()
 
 	_bounds = QRectF(QPointF(left, top), QPointF(right, bottom));
 }
+
+void GraphItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+	Q_UNUSED(event);
+
+	_pen.setWidthF(_width + 1);
+	setZValue(zValue() + 1.0);
+	update();
+
+	emit selected(true);
+}
+
+void GraphItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+	Q_UNUSED(event);
+
+	_pen.setWidthF(_width);
+	setZValue(zValue() - 1.0);
+	update();
+
+	emit selected(false);
+}

src/graphitem.h

@@ -3,6 +3,7 @@
 
 #include <QGraphicsObject>
 #include <QPen>
+#include "units.h"
 #include "graph.h"
 
 class GraphItem : public QGraphicsObject
@@ -10,34 +11,42 @@ class GraphItem : public QGraphicsObject
 	Q_OBJECT
 
 public:
-	GraphItem(const Graph &graph, QGraphicsItem *parent = 0);
+	GraphItem(const Graph &graph, GraphType type, QGraphicsItem *parent = 0);
 
-	QRectF boundingRect() const
+	QPainterPath shape() const {return _shape;}
-	  {return _path.boundingRect();}
+	QRectF boundingRect() const {return _shape.boundingRect();}
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
 	const QRectF &bounds() const {return _bounds;}
-	void setScale(qreal sx, qreal sy);
 
+	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);
+	virtual void setUnits(Units units) {Q_UNUSED(units);}
 
 	qreal yAtX(qreal x);
 	qreal distanceAtTime(qreal time);
 
+	void redraw();
+
 signals:
 	void sliderPositionChanged(qreal);
+	void selected(bool);
 
 public slots:
 	void emitSliderPositionChanged(qreal);
-	void selected(bool selected);
+	void hover(bool hover);
 
 private:
+	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+
 	void updatePath();
+	void updateShape();
 	void updateBounds();
 
 	int _id;
@@ -48,8 +57,11 @@ private:
 	GraphType _type;
 
 	QPainterPath _path;
+	QPainterPath _shape;
 	QRectF _bounds;
 	qreal _sx, _sy;
+
+	bool _time;
 };
 
 #endif // GRAPHITEM_H

src/graphtab.h

@@ -4,6 +4,7 @@
 #include <QList>
 #include "graphview.h"
 #include "units.h"
+#include "timetype.h"
 
 class Data;
 class PathItem;
@@ -18,10 +19,12 @@ public:
 
 	virtual QString label() const = 0;
 	virtual void loadData(const Data &data, const QList<PathItem *> &paths) = 0;
-	virtual void clear() = 0;
+	virtual void clear() {GraphView::clear();}
-	virtual void setUnits(enum Units units) = 0;
+	virtual void setUnits(enum Units units) {GraphView::setUnits(units);}
-	virtual void showTracks(bool show) = 0;
+	virtual void setGraphType(GraphType type) {GraphView::setGraphType(type);}
-	virtual void showRoutes(bool show) = 0;
+	virtual void setTimeType(enum TimeType type) {Q_UNUSED(type)}
+	virtual void showTracks(bool show) {Q_UNUSED(show)}
+	virtual void showRoutes(bool show) {Q_UNUSED(show)}
 };
 
 #endif // GRAPHTAB_H

src/graphview.cpp

@@ -3,7 +3,6 @@
 #include <QMouseEvent>
 #include <QPaintEngine>
 #include <QPaintDevice>
-#include <QSysInfo>
 #include "opengl.h"
 #include "config.h"
 #include "axisitem.h"
@@ -14,6 +13,7 @@
 #include "graph.h"
 #include "graphitem.h"
 #include "pathitem.h"
+#include "format.h"
 #include "graphview.h"
 
 
@@ -25,6 +25,7 @@ GraphView::GraphView(QWidget *parent)
 	_scene = new QGraphicsScene(this);
 	setScene(_scene);
 
+	setBackgroundBrush(QBrush(Qt::white));
 	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
 	setRenderHint(QPainter::Antialiasing, true);
 	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
@@ -139,7 +140,13 @@ void GraphView::setXUnits()
 void GraphView::setUnits(Units units)
 {
 	_units = units;
+
+	for (int i = 0; i < _graphs.count(); i++)
+		_graphs.at(i)->setUnits(units);
+
 	setXUnits();
+
+	redraw();
 }
 
 void GraphView::setGraphType(GraphType type)
@@ -167,29 +174,31 @@ void GraphView::showGrid(bool show)
 	_grid->setVisible(show);
 }
 
-void GraphView::loadGraph(const Graph &graph, PathItem *path, int id)
+void GraphView::showSliderInfo(bool show)
 {
-	if (graph.size() < 2)
+	_sliderInfo->setVisible(show);
-		return;
+}
 
-	GraphItem *gi = new GraphItem(graph);
+void GraphView::addGraph(GraphItem *graph, PathItem *path, int id)
-	gi->setGraphType(_graphType);
+{
-	gi->setId(id);
+	graph->setUnits(_units);
-	gi->setColor(_palette.nextColor());
+	graph->setId(id);
-	gi->setWidth(_width);
+	graph->setColor(_palette.nextColor());
+	graph->setWidth(_width);
 
-	connect(this, SIGNAL(sliderPositionChanged(qreal)), gi,
+	connect(this, SIGNAL(sliderPositionChanged(qreal)), graph,
 	  SLOT(emitSliderPositionChanged(qreal)));
-	connect(gi, SIGNAL(sliderPositionChanged(qreal)), path,
+	connect(graph, SIGNAL(sliderPositionChanged(qreal)), path,
 	  SLOT(moveMarker(qreal)));
-	connect(path, SIGNAL(selected(bool)), gi, SLOT(selected(bool)));
+	connect(path, SIGNAL(selected(bool)), graph, SLOT(hover(bool)));
+	connect(graph, SIGNAL(selected(bool)), path, SLOT(hover(bool)));
 
-	_graphs.append(gi);
+	_graphs.append(graph);
 
 	if (!_hide.contains(id)) {
-		_visible.append(gi);
+		_visible.append(graph);
-		_scene->addItem(gi);
+		_scene->addItem(graph);
-		_bounds |= gi->bounds();
+		_bounds |= graph->bounds();
 		setXUnits();
 	}
 }
@@ -227,11 +236,6 @@ void GraphView::showGraph(bool show, int id)
 	}
 }
 
-void GraphView::redraw()
-{
-	redraw(viewport()->size() - QSizeF(MARGIN, MARGIN));
-}
-
 QRectF GraphView::bounds() const
 {
 	QRectF br(_bounds);
@@ -239,6 +243,11 @@ QRectF GraphView::bounds() const
 	return br;
 }
 
+void GraphView::redraw()
+{
+	redraw(viewport()->size() - QSizeF(MARGIN, MARGIN));
+}
+
 void GraphView::redraw(const QSizeF &size)
 {
 	QRectF r;
@@ -326,11 +335,9 @@ void GraphView::mousePressEvent(QMouseEvent *e)
 	QGraphicsView::mousePressEvent(e);
 }
 
-void GraphView::plot(QPainter *painter, const QRectF &target)
+void GraphView::plot(QPainter *painter, const QRectF &target, qreal scale)
 {
-	qreal ratio = painter->paintEngine()->paintDevice()->logicalDpiX()
+	QSizeF canvas = QSizeF(target.width() / scale, target.height() / scale);
-	  / SCREEN_DPI;
-	QSizeF canvas = QSizeF(target.width() / ratio, target.height() / ratio);
 
 	setUpdatesEnabled(false);
 	redraw(canvas);
@@ -374,22 +381,26 @@ void GraphView::updateSliderPosition()
 		_slider->setVisible(false);
 	}
 
-	updateSliderInfo();
+	if (_slider->isVisible())
+		updateSliderInfo();
 }
 
 void GraphView::updateSliderInfo()
 {
-	_sliderInfo->setVisible(_visible.count() == 1);
+	qreal r, y;
-	if (!_sliderInfo->isVisible())
-		return;
 
-	QRectF br(_visible.first()->bounds());
+	if (_visible.count() > 1) {
-	if (br.height() < _minYRange)
+		r = 0;
-		br.adjust(0, -(_minYRange/2 - br.height()/2), 0,
+		y = 0;
-		  _minYRange/2 - br.height()/2);
+	} else {
+		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 = _visible.first()->yAtX(_sliderPos);
+		y = _visible.first()->yAtX(_sliderPos);
-	qreal r = (y - br.bottom()) / br.height();
+		r = (y - br.bottom()) / br.height();
+	}
 
 	qreal pos = (_sliderPos / bounds().width()) * _slider->area().width();
 	SliderInfoItem::Side s = (pos + _sliderInfo->boundingRect().width()
@@ -397,8 +408,11 @@ void GraphView::updateSliderInfo()
 
 	_sliderInfo->setSide(s);
 	_sliderInfo->setPos(QPointF(0, _slider->boundingRect().height() * r));
-	_sliderInfo->setText(QString::number(-y * _yScale + _yOffset, 'f',
+	_sliderInfo->setText(_graphType == Time ? Format::timeSpan(_sliderPos,
-	  _precision));
+	  bounds().width() > 3600) : QString::number(_sliderPos * _xScale, 'f', 1)
+	  + UNIT_SPACE + _xUnits, (_visible.count() > 1) ? QString()
+	  : QString::number(-y * _yScale + _yOffset, 'f', _precision) + UNIT_SPACE
+	  + _yUnits);
 }
 
 void GraphView::emitSliderPositionChanged(const QPointF &pos)
@@ -454,15 +468,19 @@ void GraphView::setGraphWidth(int width)
 
 	for (int i = 0; i < _graphs.count(); i++)
 		_graphs.at(i)->setWidth(width);
+
+	redraw();
 }
 
 void GraphView::useOpenGL(bool use)
 {
-	if (use) {
+	if (use)
-#ifdef Q_OS_WIN32
-		if (QSysInfo::WindowsVersion >= QSysInfo::WV_VISTA)
-#endif // Q_OS_WIN32
 		setViewport(new OPENGL_WIDGET);
-	} else
+	else
 		setViewport(new QWidget);
 }
+
+void GraphView::useAntiAliasing(bool use)
+{
+	setRenderHint(QPainter::Antialiasing, use);
+}

src/graphview.h

@@ -4,9 +4,9 @@
 #include <QGraphicsView>
 #include <QList>
 #include <QSet>
+#include "graph.h"
 #include "palette.h"
 #include "units.h"
-#include "graph.h"
 
 
 class AxisItem;
@@ -25,18 +25,29 @@ public:
 	GraphView(QWidget *parent = 0);
 	~GraphView();
 
-	void loadGraph(const Graph &graph, PathItem *path, int id = 0);
+	bool isEmpty() const {return _graphs.isEmpty();}
-	int count() const {return _graphs.count();}
-	void redraw();
 	void clear();
 
+	void plot(QPainter *painter, const QRectF &target, qreal scale);
+
+	void setPalette(const Palette &palette);
+	void setGraphWidth(int width);
+	void showGrid(bool show);
+	void showSliderInfo(bool show);
+	void useOpenGL(bool use);
+	void useAntiAliasing(bool use);
+
+	void setSliderPosition(qreal pos);
+
+signals:
+	void sliderPositionChanged(qreal);
+
+protected:
+	void addGraph(GraphItem *graph, PathItem *path, int id = 0);
+
 	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 &yLabel() const {return _yLabel;}
 	const QString &yUnits() const {return _yUnits;}
@@ -50,23 +61,16 @@ public:
 	void setSliderPrecision(int precision) {_precision = precision;}
 	void setMinYRange(qreal range) {_minYRange = range;}
 
-	qreal sliderPosition() const {return _sliderPos;}
-	void setSliderPosition(qreal pos);
-
-	void plot(QPainter *painter, const QRectF &target);
-
-	void useOpenGL(bool use);
-
-signals:
-	void sliderPositionChanged(qreal);
-
-protected:
 	QRectF bounds() const;
+	void redraw();
 	void redraw(const QSizeF &size);
 	void addInfo(const QString &key, const QString &value);
 	void clearInfo();
 	void skipColor() {_palette.nextColor();}
 
+	QList<GraphItem*> _graphs;
+	GraphType _graphType;
+
 private slots:
 	void emitSliderPositionChanged(const QPointF &pos);
 	void newSliderPosition(const QPointF &pos);
@@ -83,6 +87,7 @@ private:
 	void resizeEvent(QResizeEvent *);
 	void mousePressEvent(QMouseEvent *);
 
+	Units _units;
 	qreal _xScale, _yScale;
 	qreal _yOffset;
 	QString _xUnits, _yUnits;
@@ -99,15 +104,11 @@ private:
 	InfoItem *_info;
 	GridItem *_grid;
 
-	QList<GraphItem*> _graphs;
 	QList<GraphItem*> _visible;
 	QSet<int> _hide;
 	QRectF _bounds;
 	Palette _palette;
 	int _width;
-
-	Units _units;
-	GraphType _graphType;
 };
 
 #endif // GRAPHVIEW_H

src/gui.h

@@ -7,11 +7,13 @@
 #include <QDate>
 #include <QPrinter>
 #include "units.h"
+#include "timetype.h"
 #include "graph.h"
 #include "poi.h"
 #include "exportdialog.h"
 #include "optionsdialog.h"
 
+
 class QMenu;
 class QToolBar;
 class QTabWidget;
@@ -24,13 +26,14 @@ class FileBrowser;
 class GraphTab;
 class PathView;
 class Map;
+class MapList;
 
 class GUI : public QMainWindow
 {
 	Q_OBJECT
 
 public:
-	GUI(QWidget *parent = 0);
+	GUI();
 	~GUI();
 
 	bool openFile(const QString &fileName);
@@ -46,14 +49,14 @@ private slots:
 	void reloadFile();
 	void openPOIFile();
 	void closePOIFiles();
-	void showMap(bool show);
 	void showGraphs(bool show);
 	void showGraphGrids(bool show);
+	void showGraphSliderInfo(bool show);
 	void showToolbars(bool show);
 	void showFullscreen(bool show);
 	void showTracks(bool show);
 	void showRoutes(bool show);
-	void clearMapCache();
+	void loadMap();
 	void nextMap();
 	void prevMap();
 	void openOptions();
@@ -67,6 +70,8 @@ private slots:
 	void last();
 	void first();
 
+	void setTotalTime() {setTimeType(Total);}
+	void setMovingTime() {setTimeType(Moving);}
 	void setMetricUnits() {setUnits(Metric);}
 	void setImperialUnits() {setUnits(Imperial);}
 	void setDistanceGraph() {setGraphType(Distance);}
@@ -77,6 +82,7 @@ private slots:
 private:
 	typedef QPair<QDate, QDate> DateRange;
 
+	void loadDatums();
 	void loadMaps();
 	void loadPOIs();
 	void closeFiles();
@@ -102,17 +108,19 @@ private:
 	void updateGraphTabs();
 	void updatePathView();
 
+	TimeType timeType() const;
+	Units units() const;
+	void setTimeType(TimeType type);
 	void setUnits(Units units);
 	void setGraphType(GraphType type);
 
 	qreal distance() const;
 	qreal time() const;
+	qreal movingTime() const;
 	int mapIndex(const QString &name);
 	void readSettings();
 	void writeSettings();
 
-	const QString fileFormats() const;
-
 	void keyPressEvent(QKeyEvent *event);
 	void closeEvent(QCloseEvent *event);
 	void dragEnterEvent(QDragEnterEvent *event);
@@ -122,9 +130,11 @@ private:
 	QToolBar *_showToolBar;
 	QToolBar *_navigationToolBar;
 	QMenu *_poiFilesMenu;
+	QMenu *_mapMenu;
 
 	QActionGroup *_fileActionGroup;
 	QActionGroup *_navigationActionGroup;
+	QActionGroup *_mapsActionGroup;
 	QAction *_exitAction;
 	QAction *_keysAction;
 	QAction *_dataSourcesAction;
@@ -142,9 +152,11 @@ private:
 	QAction *_showPOILabelsAction;
 	QAction *_showMapAction;
 	QAction *_fullscreenAction;
+	QAction *_loadMapAction;
 	QAction *_clearMapCacheAction;
 	QAction *_showGraphsAction;
 	QAction *_showGraphGridAction;
+	QAction *_showGraphSliderInfoAction;
 	QAction *_distanceGraphAction;
 	QAction *_timeGraphAction;
 	QAction *_showToolbarsAction;
@@ -154,6 +166,8 @@ private:
 	QAction *_firstAction;
 	QAction *_metricUnitsAction;
 	QAction *_imperialUnitsAction;
+	QAction *_totalTimeAction;
+	QAction *_movingTimeAction;
 	QAction *_nextMapAction;
 	QAction *_prevMapAction;
 	QAction *_showTracksAction;
@@ -162,10 +176,12 @@ private:
 	QAction *_showWaypointLabelsAction;
 	QAction *_showRouteWaypointsAction;
 	QAction *_openOptionsAction;
+	QAction *_mapsEnd;
 	QList<QAction*> _mapActions;
 	QList<QAction*> _poiFilesActions;
 
-	QSignalMapper *_poiFilesSM;
+	QSignalMapper *_poiFilesSignalMapper;
+	QSignalMapper *_mapsSignalMapper;
 
 	QLabel *_fileNameLabel;
 	QLabel *_distanceLabel;
@@ -176,18 +192,19 @@ private:
 	QList<GraphTab*> _tabs;
 
 	POI *_poi;
-	QList<Map*> _maps;
+	MapList *_ml;
 
 	FileBrowser *_browser;
 	QList<QString> _files;
-	Map *_currentMap;
 
+	Map *_map;
 	int _trackCount;
 	int _routeCount;
 	int _waypointCount;
 	qreal _trackDistance;
 	qreal _routeDistance;
 	qreal _time;
+	qreal _movingTime;
 	DateRange _dateRange;
 	QString _pathName;
 

src/heartrategraph.cpp

@@ -1,10 +1,10 @@
 #include "data.h"
+#include "heartrategraphitem.h"
 #include "heartrategraph.h"
 
 
 HeartRateGraph::HeartRateGraph(QWidget *parent) : GraphTab(parent)
 {
-	_units = Metric;
 	_showTracks = true;
 
 	GraphView::setYUnits(tr("1/min"));
@@ -28,21 +28,16 @@ void HeartRateGraph::loadData(const Data &data, const QList<PathItem *> &paths)
 {
 	for (int i = 0; i < data.tracks().count(); i++) {
 		const Graph &graph = data.tracks().at(i)->heartRate();
-		qreal sum = 0, w = 0;
 
 		if (graph.size() < 2) {
 			skipColor();
 			continue;
 		}
 
-		for (int j = 1; j < graph.size(); j++) {
+		HeartRateGraphItem *gi = new HeartRateGraphItem(graph, _graphType);
-			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+		GraphView::addGraph(gi, paths.at(i));
-			sum += graph.at(j).y() * ds;
-			w += ds;
-		}
-		_avg.append(QPointF(data.tracks().at(i)->distance(), sum/w));
 
-		GraphView::loadGraph(graph, paths.at(i));
+		_avg.append(QPointF(data.tracks().at(i)->distance(), gi->avg()));
 	}
 
 	for (int i = 0; i < data.routes().count(); i++)

src/heartrategraph.h

@@ -13,9 +13,7 @@ public:
 	QString label() const {return tr("Heart rate");}
 	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;
@@ -24,7 +22,6 @@ private:
 
 	QList<QPointF> _avg;
 
-	enum Units _units;
 	bool _showTracks;
 };
 

src/heartrategraphitem.cpp

@@ -0,0 +1,26 @@
+#include "tooltip.h"
+#include "heartrategraphitem.h"
+
+HeartRateGraphItem::HeartRateGraphItem(const Graph &graph, GraphType type,
+  QGraphicsItem *parent) : GraphItem(graph, type, parent)
+{
+	qreal sum = 0;
+
+	for (int j = 1; j < graph.size(); j++)
+		sum += graph.at(j).y() * (graph.at(j).s() - graph.at(j-1).s());
+	_avg = sum/graph.last().s();
+
+	setToolTip(toolTip());
+}
+
+QString HeartRateGraphItem::toolTip() const
+{
+	ToolTip tt;
+
+	tt.insert(tr("Maximum"), QString::number(max(), 'f', 0)
+	  + UNIT_SPACE + tr("1/min"));
+	tt.insert(tr("Average"), QString::number(avg(), 'f', 0)
+	  + UNIT_SPACE + tr("1/min"));
+
+	return tt.toString();
+}

src/heartrategraphitem.h

@@ -0,0 +1,23 @@
+#ifndef HEARTRATEGRAPHITEM_H
+#define HEARTRATEGRAPHITEM_H
+
+#include "graphitem.h"
+
+class HeartRateGraphItem : public GraphItem
+{
+	Q_OBJECT
+
+public:
+	HeartRateGraphItem(const Graph &graph, GraphType type,
+	  QGraphicsItem *parent = 0);
+
+	qreal max() const {return -bounds().top();}
+	qreal avg() const {return _avg;}
+
+private:
+	QString toolTip() const;
+
+	qreal _avg;
+};
+
+#endif // HEARTRATEGRAPHITEM_H

src/icons.h

@@ -10,7 +10,7 @@
 #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 SHOW_GRAPHS_ICON  ":/icons/office-chart-line.png"
 #define QUIT_ICON         ":/icons/application-exit.png"
 #define RELOAD_FILE_ICON  ":/icons/view-refresh.png"
 #define NEXT_FILE_ICON    ":/icons/arrow-right.png"
@@ -24,5 +24,6 @@
 #define POI_ICON          ":/icons/flag_48.png"
 #define SYSTEM_ICON       ":/icons/system-run.png"
 #define PRINT_EXPORT_ICON ":/icons/document-print-preview.png"
+#define DATA_ICON         ":/icons/view-filter.png"
 
 #endif /* ICONS_H */

src/igcparser.cpp

@@ -120,7 +120,7 @@ bool IGCParser::readHRecord(const char *line, int len)
 	return true;
 }
 
-bool IGCParser::readBRecord(const char *line, int len)
+bool IGCParser::readBRecord(TrackData &track, const char *line, int len)
 {
 	qreal lat, lon, ele;
 	QTime time;
@@ -156,12 +156,12 @@ bool IGCParser::readBRecord(const char *line, int len)
 	Trackpoint t(Coordinates(lon, lat));
 	t.setTimestamp(QDateTime(_date, _time, Qt::UTC));
 	t.setElevation(ele);
-	_tracks.last().append(t);
+	track.append(t);
 
 	return true;
 }
 
-bool IGCParser::readCRecord(const char *line, int len)
+bool IGCParser::readCRecord(RouteData &route, const char *line, int len)
 {
 	qreal lat, lon;
 
@@ -183,14 +183,16 @@ bool IGCParser::readCRecord(const char *line, int len)
 
 		Waypoint w(Coordinates(lon, lat));
 		w.setName(QString(ba.trimmed()));
-		_routes.last().append(w);
+		route.append(w);
 	}
 
 	return true;
 }
 
-bool IGCParser::loadFile(QFile *file)
+bool IGCParser::parse(QFile *file, QList<TrackData> &tracks,
+  QList<RouteData> &routes, QList<Waypoint> &waypoints)
 {
+	Q_UNUSED(waypoints);
 	qint64 len;
 	char line[76 + 2 + 1 + 1];
 	bool route = false, track = false;
@@ -221,11 +223,11 @@ bool IGCParser::loadFile(QFile *file)
 					return false;
 			} else if (line[0] == 'C') {
 				if (route) {
-					if (!readCRecord(line, len))
+					if (!readCRecord(routes.last() ,line, len))
 						return false;
 				} else {
 					route = true;
-					_routes.append(RouteData());
+					routes.append(RouteData());
 				}
 			} else if (line[0] == 'B') {
 				if (_date.isNull()) {
@@ -233,11 +235,11 @@ bool IGCParser::loadFile(QFile *file)
 					return false;
 				}
 				if (!track) {
-					_tracks.append(TrackData());
+					tracks.append(TrackData());
 					_time = QTime(0, 0);
 					track = true;
 				}
-				if (!readBRecord(line, len))
+				if (!readBRecord(tracks.last(), line, len))
 					return false;
 			}
 		}

src/igcparser.h

@@ -9,19 +9,18 @@
 class IGCParser : public Parser
 {
 public:
-	IGCParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	IGCParser() : _errorLine(0) {}
-	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
-	  {_errorLine = 0;}
 	~IGCParser() {}
 
-	bool loadFile(QFile *file);
+	bool parse(QFile *file, QList<TrackData> &tracks,
+	  QList<RouteData> &routes, QList<Waypoint> &waypoints);
 	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 readBRecord(TrackData &track, const char *line, int len);
-	bool readCRecord(const char *line, int len);
+	bool readCRecord(RouteData &route, const char *line, int len);
 
 	int _errorLine;
 	QString _errorString;

src/infoitem.cpp

@@ -78,6 +78,7 @@ void InfoItem::insert(const QString &key, const QString &value)
 		_list[i] = kv;
 
 	updateBoundingRect();
+	update();
 }
 
 void InfoItem::clear()

src/keys.h

@@ -10,18 +10,23 @@
 #define LAST_KEY                Qt::Key_End
 #define MODIFIER                Qt::ShiftModifier
 
-#define QUIT_SHORTCUT           QKeySequence::Quit
+#define ZOOM_IN                 QKeySequence::ZoomIn
-#define OPEN_SHORTCUT           QKeySequence::Open
+#define ZOOM_OUT                QKeySequence::ZoomOut
-#define CLOSE_SHORTCUT          QKeySequence::Close
+
-#define RELOAD_SHORTCUT         QKeySequence::Refresh
+#define TOGGLE_GRAPH_TYPE_KEY   Qt::Key_X
+#define TOGGLE_TIME_TYPE_KEY    Qt::Key_T
+
+#define QUIT_SHORTCUT           QKeySequence(QKeySequence::Quit)
+#define OPEN_SHORTCUT           QKeySequence(QKeySequence::Open)
+#define CLOSE_SHORTCUT          QKeySequence(QKeySequence::Close)
+#define RELOAD_SHORTCUT         QKeySequence(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 NEXT_MAP_SHORTCUT       QKeySequence(QKeySequence::Forward)
-#define PREV_MAP_SHORTCUT       QKeySequence::Back
+#define PREV_MAP_SHORTCUT       QKeySequence(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)
 #else // Q_OS_MAC

src/kmlparser.cpp

@@ -225,10 +225,127 @@ void KMLParser::point(Waypoint &waypoint)
 		_reader.raiseError("Missing Point coordinates");
 }
 
+void KMLParser::heartRate(TrackData &track, int start)
+{
+	int i = start;
+	const char error[] = "Heartrate data count mismatch";
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "value") {
+			if (i < track.size())
+				track[i++].setHeartRate(number());
+			else {
+				_reader.raiseError(error);
+				return;
+			}
+		} else
+			_reader.skipCurrentElement();
+	}
+
+	if (i != track.size())
+		_reader.raiseError(error);
+}
+
+void KMLParser::cadence(TrackData &track, int start)
+{
+	int i = start;
+	const char error[] = "Cadence data count mismatch";
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "value") {
+			if (i < track.size())
+				track[i++].setCadence(number());
+			else {
+				_reader.raiseError(error);
+				return;
+			}
+		} else
+			_reader.skipCurrentElement();
+	}
+
+	if (i != track.size())
+		_reader.raiseError(error);
+}
+
+void KMLParser::speed(TrackData &track, int start)
+{
+	int i = start;
+	const char error[] = "Speed data count mismatch";
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "value") {
+			if (i < track.size())
+				track[i++].setSpeed(number());
+			else {
+				_reader.raiseError(error);
+				return;
+			}
+		} else
+			_reader.skipCurrentElement();
+	}
+
+	if (i != track.size())
+		_reader.raiseError(error);
+}
+
+void KMLParser::temperature(TrackData &track, int start)
+{
+	int i = start;
+	const char error[] = "Temperature data count mismatch";
+
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "value") {
+			if (i < track.size())
+				track[i++].setTemperature(number());
+			else {
+				_reader.raiseError(error);
+				return;
+			}
+		} else
+			_reader.skipCurrentElement();
+	}
+
+	if (i != track.size())
+		_reader.raiseError(error);
+}
+
+void KMLParser::schemaData(TrackData &track, int start)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "SimpleArrayData") {
+			QXmlStreamAttributes attr = _reader.attributes();
+			QStringRef name = attr.value("name");
+
+			if (name == "Heartrate")
+				heartRate(track, start);
+			else if (name == "Cadence")
+				cadence(track, start);
+			else if (name == "Speed")
+				speed(track, start);
+			else if (name == "Temperature")
+				temperature(track, start);
+			else
+				_reader.skipCurrentElement();
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::extendedData(TrackData &track, int start)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "SchemaData")
+			schemaData(track, start);
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
 void KMLParser::track(TrackData &track)
 {
-	const char mismatchError[] = "gx:coord/when element count mismatch";
+	const char error[] = "gx:coord/when element count mismatch";
-	int i = track.size();
+	int first = track.size();
+	int i = first;
 
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "when") {
@@ -236,35 +353,48 @@ void KMLParser::track(TrackData &track)
 			track.last().setTimestamp(time());
 		} else if (_reader.name() == "coord") {
 			if (i == track.size()) {
-				_reader.raiseError(mismatchError);
+				_reader.raiseError(error);
 				return;
 			} else if (!coord(track[i])) {
 				_reader.raiseError("Invalid coordinates");
 				return;
 			}
 			i++;
-		} else
+		} else if (_reader.name() == "ExtendedData")
+			extendedData(track, first);
+		else
 			_reader.skipCurrentElement();
 	}
 
 	if (i != track.size())
-		_reader.raiseError(mismatchError);
+		_reader.raiseError(error);
 }
 
-void KMLParser::multiGeometry(const QString &name, const QString &desc,
+void KMLParser::multiTrack(TrackData &t)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "Track")
+			track(t);
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void KMLParser::multiGeometry(QList<TrackData> &tracks,
+  QList<Waypoint> &waypoints, const QString &name, const QString &desc,
   const QDateTime timestamp)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "Point") {
-			_waypoints.append(Waypoint());
+			waypoints.append(Waypoint());
-			Waypoint &w = _waypoints.last();
+			Waypoint &w = waypoints.last();
 			w.setName(name);
 			w.setDescription(desc);
 			w.setTimestamp(timestamp);
 			point(w);
 		} else if (_reader.name() == "LineString") {
-			_tracks.append(TrackData());
+			tracks.append(TrackData());
-			TrackData &t = _tracks.last();
+			TrackData &t = tracks.last();
 			t.setName(name);
 			t.setDescription(desc);
 			lineString(t);
@@ -273,7 +403,7 @@ void KMLParser::multiGeometry(const QString &name, const QString &desc,
 	}
 }
 
-void KMLParser::placemark()
+void KMLParser::placemark(QList<TrackData> &tracks, QList<Waypoint> &waypoints)
 {
 	QString name, desc;
 	QDateTime timestamp;
@@ -286,83 +416,90 @@ void KMLParser::placemark()
 		else if (_reader.name() == "TimeStamp")
 			timestamp = timeStamp();
 		else if (_reader.name() == "MultiGeometry")
-			multiGeometry(name, desc, timestamp);
+			multiGeometry(tracks, waypoints, name, desc, timestamp);
 		else if (_reader.name() == "Point") {
-			_waypoints.append(Waypoint());
+			waypoints.append(Waypoint());
-			Waypoint &w = _waypoints.last();
+			Waypoint &w = waypoints.last();
 			w.setName(name);
 			w.setDescription(desc);
 			w.setTimestamp(timestamp);
 			point(w);
-		} else if (_reader.name() == "LineString") {
+		} else if (_reader.name() == "LineString"
-			_tracks.append(TrackData());
+		  || _reader.name() == "LinearRing") {
-			TrackData &t = _tracks.last();
+			tracks.append(TrackData());
+			TrackData &t = tracks.last();
 			t.setName(name);
 			t.setDescription(desc);
 			lineString(t);
 		} else if (_reader.name() == "Track") {
-			_tracks.append(TrackData());
+			tracks.append(TrackData());
-			TrackData &t = _tracks.last();
+			TrackData &t = tracks.last();
 			t.setName(name);
 			t.setDescription(desc);
 			track(t);
+		} else if (_reader.name() == "MultiTrack") {
+			tracks.append(TrackData());
+			TrackData &t = tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			multiTrack(t);
 		} else
 			_reader.skipCurrentElement();
 	}
 }
 
-void KMLParser::folder()
+void KMLParser::folder(QList<TrackData> &tracks, QList<Waypoint> &waypoints)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "Placemark")
-			placemark();
+			placemark(tracks, waypoints);
 		else if (_reader.name() == "Folder")
-			folder();
+			folder(tracks, waypoints);
 		else
 			_reader.skipCurrentElement();
 	}
 }
 
-void KMLParser::document()
+void KMLParser::document(QList<TrackData> &tracks, QList<Waypoint> &waypoints)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "Placemark")
-			placemark();
+			placemark(tracks, waypoints);
 		else if (_reader.name() == "Folder")
-			folder();
+			folder(tracks, waypoints);
 		else
 			_reader.skipCurrentElement();
 	}
 }
 
-void KMLParser::kml()
+void KMLParser::kml(QList<TrackData> &tracks, QList<Waypoint> &waypoints)
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "Document")
-			document();
+			document(tracks, waypoints);
 		else if (_reader.name() == "Placemark")
-			placemark();
+			placemark(tracks, waypoints);
+		else if (_reader.name() == "Folder")
+			folder(tracks, waypoints);
 		else
 			_reader.skipCurrentElement();
 	}
 }
 
-bool KMLParser::parse()
+bool KMLParser::parse(QFile *file, QList<TrackData> &tracks,
+  QList<RouteData> &routes, QList<Waypoint> &waypoints)
 {
+	Q_UNUSED(routes);
+
+	_reader.clear();
+	_reader.setDevice(file);
+
 	if (_reader.readNextStartElement()) {
 		if (_reader.name() == "kml")
-			kml();
+			kml(tracks, waypoints);
 		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

@@ -8,28 +8,33 @@
 class KMLParser : public Parser
 {
 public:
-	KMLParser(QList<TrackData> &tracks, QList<RouteData> &routes,
-	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints) {}
 	~KMLParser() {}
 
-	bool loadFile(QFile *file);
+	bool parse(QFile *file, QList<TrackData> &tracks,
+	  QList<RouteData> &routes, QList<Waypoint> &waypoints);
 	QString errorString() const {return _reader.errorString();}
 	int errorLine() const {return _reader.lineNumber();}
 
 private:
-	bool parse();
+	void kml(QList<TrackData> &tracks, QList<Waypoint> &waypoints);
-	void kml();
+	void document(QList<TrackData> &tracks, QList<Waypoint> &waypoints);
-	void document();
+	void folder(QList<TrackData> &tracks, QList<Waypoint> &waypoints);
-	void folder();
+	void placemark(QList<TrackData> &tracks, QList<Waypoint> &waypoints);
-	void placemark();
+	void multiGeometry(QList<TrackData> &tracks, QList<Waypoint> &waypoints,
-	void multiGeometry(const QString &name, const QString &desc,
+	  const QString &name, const QString &desc, const QDateTime timestamp);
-	  const QDateTime timestamp);
 	void track(TrackData &track);
+	void multiTrack(TrackData &t);
 	void lineString(TrackData &track);
 	void point(Waypoint &waypoint);
 	bool pointCoordinates(Waypoint &waypoint);
 	bool lineCoordinates(TrackData &track);
 	bool coord(Trackpoint &trackpoint);
+	void extendedData(TrackData &track, int start);
+	void schemaData(TrackData &track, int start);
+	void heartRate(TrackData &track, int start);
+	void cadence(TrackData &track, int start);
+	void speed(TrackData &track, int start);
+	void temperature(TrackData &track, int start);
 	QDateTime timeStamp();
 	qreal number();
 	QDateTime time();

src/lambertconic.cpp

@@ -0,0 +1,81 @@
+#include <cmath>
+#include "rd.h"
+#include "lambertconic.h"
+
+#ifndef M_PI_2
+	#define M_PI_2 1.57079632679489661923
+#endif // M_PI_2
+#ifndef M_PI_4
+	#define M_PI_4 0.78539816339744830962
+#endif // M_PI_4
+
+static double q(const Ellipsoid &el, double b)
+{
+	double e = sqrt(el.flattening() * (2. - el.flattening()));
+	double esb = e * sin(b);
+	return log(tan(M_PI_4 + b / 2.) * pow((1. - esb) / (1. + esb), e / 2.));
+}
+
+static double iq(const Ellipsoid &el, double q)
+{
+	double e = sqrt(el.flattening() * (2. - el.flattening()));
+	double b0 = 0.;
+	double b = 2. * atan(exp(q)) - M_PI_2;
+
+	do {
+		b0 = b;
+		double esb = e * sin(b);
+		b = 2. * atan(exp(q) * pow((1. - esb) / (1. + esb), -e / 2.)) - M_PI_2;
+	} while (fabs(b - b0) > 1e-10);
+
+	return b;
+}
+
+static double nradius(const Ellipsoid &el, double phi)
+{
+	double sin_phi = sin(phi);
+	return (el.radius() / sqrt(1. - (el.flattening() * (2. - el.flattening()))
+	  * sin_phi * sin_phi));
+}
+
+LambertConic::LambertConic(const Ellipsoid &ellipsoid, double standardParallel1,
+  double standardParallel2, double latitudeOrigin, double longitudeOrigin,
+  double scale, double falseEasting, double falseNorthing) : _e(ellipsoid)
+{
+	_cm = longitudeOrigin;
+	_fe = falseEasting;
+	_fn = falseNorthing;
+
+	double sp1 = deg2rad(standardParallel1);
+	double sp2 = deg2rad(standardParallel2);
+
+	double N1 = nradius(_e, sp1);
+	double N2 = nradius(_e, sp2);
+
+	_q0 = q(_e, deg2rad(latitudeOrigin));
+	double q1 = q(_e, sp1);
+	double q2 = q(_e, sp2);
+
+	_n = log((N1 * cos(sp1)) / (N2 * cos(sp2))) / (q2 - q1);
+	double R1 = N1 * cos(sp1) / _n;
+	_R0 = scale * R1 * exp(_n * (q1 - _q0));
+}
+
+QPointF LambertConic::ll2xy(const Coordinates &c) const
+{
+	double dl = _n * (deg2rad(c.lon()) - deg2rad(_cm));
+	double R = _R0 * exp(_n * (_q0 - q(_e, deg2rad(c.lat()))));
+
+	return QPointF(_fe + R * sin(dl), _fn + _R0 - R * cos(dl));
+}
+
+Coordinates LambertConic::xy2ll(const QPointF &p) const
+{
+	double dl = atan((p.x() - _fe) / (_fn + _R0 - p.y()));
+	double dx = p.x() - _fe;
+	double dy = p.y() - _fn - _R0;
+	double R = sqrt(dx * dx + dy * dy);
+	double q = _q0 - log(fabs(R / _R0)) / _n;
+
+	return Coordinates(rad2deg(deg2rad(_cm) + dl / _n), rad2deg(iq(_e, q)));
+}

src/lambertconic.h

@@ -0,0 +1,29 @@
+#ifndef LAMBERTCONIC_H
+#define LAMBERTCONIC_H
+
+#include "ellipsoid.h"
+#include "projection.h"
+
+class LambertConic : public Projection
+{
+public:
+	LambertConic(const Ellipsoid &ellipsoid, double standardParallel1,
+	  double standardParallel2, double latitudeOrigin, double longitudeOrigin,
+	  double scale, double falseEasting, double falseNorthing);
+
+	virtual QPointF ll2xy(const Coordinates &c) const;
+	virtual Coordinates xy2ll(const QPointF &p) const;
+
+private:
+	Ellipsoid _e;
+
+	double _cm;
+	double _fe;
+	double _fn;
+
+	double _q0;
+	double _R0;
+	double _n;
+};
+
+#endif // LAMBERTCONIC_H

src/latlon.h

@@ -0,0 +1,15 @@
+#ifndef LATLON_H
+#define LATLON_H
+
+#include "projection.h"
+
+class LatLon : public Projection
+{
+public:
+	virtual QPointF ll2xy(const Coordinates &c) const
+	  {return QPointF(c.lon(), c.lat());}
+	virtual Coordinates xy2ll(const QPointF &p) const
+	  {return Coordinates(p.x(), p.y());}
+};
+
+#endif // LATLON_H

src/map.cpp

@@ -1,134 +0,0 @@
-#include <QFileInfo>
-#include <QDir>
-#include "downloader.h"
-#include "config.h"
-#include "map.h"
-
-
-Map::Map(QObject *parent, const QString &name, const QString &url)
-  : QObject(parent)
-{
-	_name = name;
-	_url = url;
-
-	connect(&Downloader::instance(), SIGNAL(finished()), this,
-	  SLOT(emitLoaded()));
-
-	QString path = TILES_DIR + QString("/") + _name;
-	if (!QDir().mkpath(path))
-		fprintf(stderr, "Error creating tiles dir: %s\n", qPrintable(path));
-}
-
-void Map::emitLoaded()
-{
-	emit loaded();
-}
-
-void Map::loadTiles(QList<Tile> &list, bool block)
-{
-	if (block)
-		loadTilesSync(list);
-	else
-		loadTilesAsync(list);
-}
-
-void Map::loadTilesAsync(QList<Tile> &list)
-{
-	QList<Download> dl;
-
-	for (int i = 0; i < list.size(); i++) {
-		Tile &t = list[i];
-		QString file = tileFile(t);
-		QFileInfo fi(file);
-
-		if (!fi.exists()) {
-			fillTile(t);
-			dl.append(Download(tileUrl(t), file));
-		} else
-			loadTileFile(t, file);
-	}
-
-	if (!dl.empty())
-		Downloader::instance().get(dl);
-}
-
-void Map::loadTilesSync(QList<Tile> &list)
-{
-	QList<Download> dl;
-
-	for (int i = 0; i < list.size(); i++) {
-		Tile &t = list[i];
-		QString file = tileFile(t);
-		QFileInfo fi(file);
-
-		if (!fi.exists())
-			dl.append(Download(tileUrl(t), file));
-		else
-			loadTileFile(t, file);
-	}
-
-	if (dl.empty())
-		return;
-
-	QEventLoop wait;
-	connect(&Downloader::instance(), SIGNAL(finished()), &wait, SLOT(quit()));
-	if (Downloader::instance().get(dl))
-		wait.exec();
-
-	for (int i = 0; i < list.size(); i++) {
-		Tile &t = list[i];
-
-		if (t.pixmap().isNull()) {
-			QString file = tileFile(t);
-			QFileInfo fi(file);
-
-			if (!(fi.exists() && loadTileFile(t, file)))
-				fillTile(t);
-		}
-	}
-}
-
-void Map::fillTile(Tile &tile)
-{
-	tile.pixmap() = QPixmap(Tile::size(), Tile::size());
-	tile.pixmap().fill();
-}
-
-bool Map::loadTileFile(Tile &tile, const QString &file)
-{
-	if (!tile.pixmap().load(file)) {
-		fprintf(stderr, "%s: error loading tile file\n", qPrintable(file));
-		return false;
-	}
-
-	return true;
-}
-
-QString Map::tileUrl(const Tile &tile)
-{
-	QString url(_url);
-
-	url.replace("$z", QString::number(tile.zoom()));
-	url.replace("$x", QString::number(tile.xy().x()));
-	url.replace("$y", QString::number(tile.xy().y()));
-
-	return url;
-}
-
-QString Map::tileFile(const Tile &tile)
-{
-	QString file = TILES_DIR + QString("/%1/%2-%3-%4").arg(_name)
-	  .arg(tile.zoom()).arg(tile.xy().x()).arg(tile.xy().y());
-
-	return file;
-}
-
-void Map::clearCache()
-{
-	QString path = TILES_DIR + QString("/") + _name;
-	QDir dir = QDir(path);
-	QStringList list = dir.entryList();
-
-	for (int i = 0; i < list.count(); i++)
-		dir.remove(list.at(i));
-}

src/map.h

@@ -1,37 +1,50 @@
 #ifndef MAP_H
 #define MAP_H
 
-#include "tile.h"
+#include <QObject>
+#include <QString>
+#include <QRectF>
+#include <QColor>
+
+class QPainter;
+class Coordinates;
+class RectC;
 
 class Map : public QObject
 {
 	Q_OBJECT
 
 public:
-	Map(QObject *parent = 0, const QString &name = QString(),
+	Map(QObject *parent = 0) : QObject(parent) {_backgroundColor = Qt::white;}
-	  const QString &url = QString());
 
-	const QString &name() const {return _name;}
+	virtual const QString &name() const = 0;
-	void loadTiles(QList<Tile> &list, bool block);
+
-	void clearCache();
+	virtual QRectF bounds() const = 0;
+	virtual qreal resolution(const QPointF &p) const = 0;
+
+	virtual qreal zoom() const = 0;
+	virtual qreal zoomFit(const QSize &size, const RectC &br) = 0;
+	virtual qreal zoomFit(qreal resolution, const Coordinates &c) = 0;
+	virtual qreal zoomIn() = 0;
+	virtual qreal zoomOut() = 0;
+
+	virtual QPointF ll2xy(const Coordinates &c) = 0;
+	virtual Coordinates xy2ll(const QPointF &p) = 0;
+
+	virtual void draw(QPainter *painter, const QRectF &rect) = 0;
+
+	virtual void setBlockingMode(bool block) {Q_UNUSED(block);}
+	virtual void clearCache() {}
+	virtual void load() {}
+	virtual void unload() {}
+
+	void setBackgroundColor(const QColor &color) {_backgroundColor = color;}
 
 signals:
 	void loaded();
 
-private slots:
+protected:
-	void emitLoaded();
+	QColor _backgroundColor;
-
-private:
-	QString tileUrl(const Tile &tile);
-	QString tileFile(const Tile &tile);
-	bool loadTileFile(Tile &tile, const QString &file);
-	void fillTile(Tile &tile);
-
-	void loadTilesAsync(QList<Tile> &list);
-	void loadTilesSync(QList<Tile> &list);
-
-	QString _name;
-	QString _url;
 };
 
 #endif // MAP_H

src/maplist.cpp

@@ -1,41 +1,150 @@
-#include <QFile>
 #include <QFileInfo>
-#include "map.h"
+#include <QDir>
+#include "range.h"
+#include "atlas.h"
+#include "offlinemap.h"
+#include "onlinemap.h"
 #include "maplist.h"
 
 
-QList<Map*> MapList::load(QObject *parent, const QString &fileName)
+#define ZOOM_MAX 18
+#define ZOOM_MIN  2
+
+Map *MapList::loadListEntry(const QByteArray &line)
 {
-	QList<Map*> mapList;
+	int max;
-	QFileInfo fi(fileName);
 
-	if (!fi.exists())
+	QList<QByteArray> list = line.split('\t');
-		return mapList;
+	if (list.size() < 2)
+		return 0;
 
-	QFile file(fileName);
+	QByteArray ba1 = list.at(0).trimmed();
+	QByteArray ba2 = list.at(1).trimmed();
+	if (ba1.isEmpty() || ba2.isEmpty())
+		return 0;
+
+	if (list.size() == 3) {
+		bool ok;
+		max = QString(list.at(2).trimmed()).toInt(&ok);
+		if (!ok)
+			return 0;
+	} else
+		max = ZOOM_MAX;
+
+	return new OnlineMap(QString::fromUtf8(ba1.data(), ba1.size()),
+	  QString::fromLatin1(ba2.data(), ba2.size()), Range(ZOOM_MIN, max), this);
+}
+
+bool MapList::loadList(const QString &path)
+{
+	QFile file(path);
+	QList<Map*> maps;
 
 	if (!file.open(QFile::ReadOnly | QFile::Text)) {
-		fprintf(stderr, "Error opening map list file: %s: %s\n",
+		_errorString = file.errorString();
-		  qPrintable(fileName), qPrintable(file.errorString()));
+		return false;
-		return mapList;
 	}
 
 	int ln = 0;
 	while (!file.atEnd()) {
 		ln++;
 		QByteArray line = file.readLine();
-		QList<QByteArray> list = line.split('\t');
+		Map *map = loadListEntry(line);
-		if (list.size() != 2) {
+
-			fprintf(stderr, "Invalid map list entry on line %d\n", ln);
+		if (map)
-			continue;
+			maps.append(map);
+		else {
+			for (int i = 0; i < maps.count(); i++)
+				delete maps.at(i);
+			_errorString = QString("Invalid map list entry on line %1.")
+			  .arg(QString::number(ln));
+			return false;
 		}
-
-		QByteArray ba1 = list[0].trimmed();
-		QByteArray ba2 = list[1].trimmed();
-
-		mapList.append(new Map(parent, QString::fromUtf8(ba1.data(), ba1.size()),
-		  QString::fromLatin1(ba2.data(), ba2.size())));
 	}
 
-	return mapList;
+	_maps += maps;
+
+	return true;
+}
+
+bool MapList::loadMap(const QString &path)
+{
+	OfflineMap *map = new OfflineMap(path, this);
+	if (map->isValid()) {
+		_maps.append(map);
+		return true;
+	} else {
+		_errorString = map->errorString();
+		delete map;
+		return false;
+	}
+}
+
+bool MapList::loadTba(const QString &path)
+{
+	Atlas *atlas = new Atlas(path, this);
+	if (atlas->isValid()) {
+		_maps.append(atlas);
+		return true;
+	} else {
+		_errorString = atlas->errorString();
+		delete atlas;
+		return false;
+	}
+}
+
+bool MapList::loadTar(const QString &path)
+{
+	Atlas *atlas = new Atlas(path, this);
+	if (atlas->isValid()) {
+		_maps.append(atlas);
+		return true;
+	} else {
+		_errorString = atlas->errorString();
+		delete atlas;
+		OfflineMap *map = new OfflineMap(path, this);
+		if (map->isValid()) {
+			_maps.append(map);
+			return true;
+		} else {
+			qWarning("%s: %s", qPrintable(path), qPrintable(_errorString));
+			qWarning("%s: %s", qPrintable(path),
+			  qPrintable(map->errorString()));
+			_errorString = "Not a map/atlas file";
+			delete map;
+			return false;
+		}
+	}
+}
+
+bool MapList::loadFile(const QString &path)
+{
+	QFileInfo fi(path);
+	QString suffix = fi.suffix().toLower();
+
+	if (suffix == "txt")
+		return loadList(path);
+	else if (suffix == "map")
+		return loadMap(path);
+	else if (suffix == "tba")
+		return loadTba(path);
+	else if (suffix == "tar")
+		return loadTar(path);
+	else {
+		_errorString = "Not a map/atlas file";
+		return false;
+	}
+}
+
+QString MapList::formats()
+{
+	return tr("Map files (*.map *.tba *.tar)") + ";;"
+	  + tr("URL list files (*.txt)");
+}
+
+QStringList MapList::filter()
+{
+	QStringList filter;
+	filter << "*.map" << "*.tba" << "*.tar" << "*.txt";
+	return filter;
 }

src/maplist.h

@@ -1,17 +1,35 @@
 #ifndef MAPLIST_H
 #define MAPLIST_H
 
-#include <QList>
-#include <QString>
 #include <QObject>
+#include <QString>
+#include "map.h"
 
-class Map;
+class MapList : public QObject
-
-class MapList
 {
+	Q_OBJECT
+
 public:
-	static QList<Map*> load(QObject *parent = 0,
+	MapList(QObject *parent = 0) : QObject(parent) {}
-	  const QString &fileName = QString());
+
+	bool loadFile(const QString &path);
+
+	const QList<Map*> &maps() const {return _maps;}
+	const QString &errorString() const {return _errorString;}
+
+	static QString formats();
+	static QStringList filter();
+
+private:
+	Map *loadListEntry(const QByteArray &line);
+
+	bool loadList(const QString &path);
+	bool loadMap(const QString &path);
+	bool loadTba(const QString &path);
+	bool loadTar(const QString &path);
+
+	QList<Map*> _maps;
+	QString _errorString;
 };
 
 #endif // MAPLIST_H

src/matrix.cpp

@@ -0,0 +1,130 @@
+#include "matrix.h"
+
+
+#define abs(x) ((x)<0 ? -(x) : (x))
+
+Matrix::~Matrix()
+{
+	if (isNull())
+		return;
+
+	delete[] _m;
+}
+
+Matrix::Matrix(size_t h, size_t w)
+{
+	_h = h; _w = w;
+
+	if (isNull())
+		_m = 0;
+	else
+		_m = new double[_h * _w];
+}
+
+Matrix::Matrix(const Matrix& M)
+{
+	_h = M._h; _w = M._w;
+
+	if (isNull())
+		_m = 0;
+	else
+		_m = new double[_h * _w];
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = 0; j < _w; j++)
+			m(i,j) = M.m(i,j);
+}
+
+Matrix &Matrix::operator=(const Matrix &M)
+{
+	if (_h != M._h || _w != M._w) {
+		if (!isNull())
+			delete[] _m;
+
+		_h = M._h; _w = M._w;
+		if (isNull())
+			_m = 0;
+		else
+			_m = new double[_h * _w];
+	}
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = 0; j < _w; j++)
+			m(i,j) = M.m(i,j);
+
+	return *this;
+}
+
+bool Matrix::eliminate(double epsilon)
+{
+	size_t i, j, k, maxrow;
+	double temp;
+
+
+	for (i = 0; i < _h; i++) {
+		maxrow = i;
+		for (j = i+1; j < _h; j++)
+			if (abs(m(j, i)) > abs(m(maxrow, i)))
+				maxrow = j;
+		for (j = 0; j < _w; j++) {
+			temp = m(i, j);
+			m(i, j) = m(maxrow, j);
+			m(maxrow, j) = temp;
+		}
+		if (abs(m(i, i)) <= epsilon)
+			return false;
+		for (j = i+1; j<_h; j++) {
+			temp = m(j, i) / m(i, i);
+			for (k = i; k < _w; k++)
+				m(j, k) -= m(i, k) * temp;
+		}
+	}
+	for (i = _h-1; i < i+1; i--) {
+		temp  = m(i, i);
+		for (j = 0; j < i; j++)
+			for (k = _w-1; k >= i; k--)
+				m(j, k) -=  m(i, k) * m(j, i) / temp;
+		m(i, i) /= temp;
+		for (j = _h; j < _w; j++)
+			m(i, j) /= temp;
+	}
+
+	return true;
+}
+
+Matrix Matrix::augemented(const Matrix &M) const
+{
+	if (_h != M._h)
+		return Matrix();
+
+	Matrix A(_h, _w + M._w);
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = 0; j < _w; j++)
+			A.m(i, j) = m(i, j);
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = _w; j < A._w; j++)
+			A.m(i, j) = M.m(i, j-_w);
+
+	return A;
+}
+
+void Matrix::zeroize()
+{
+	for (size_t i = 0; i < _h * _w; i++)
+		_m[i] = 0;
+}
+
+QDebug operator<<(QDebug dbg, const Matrix &matrix)
+{
+	dbg.nospace() << "Matrix(" << endl;
+	for (size_t i = 0; i < matrix.h(); i++) {
+		for (size_t j = 0; j < matrix.w(); j++)
+			dbg << "\t" << matrix.m(i, j);
+		dbg << endl;
+	}
+	dbg << ")";
+
+	return dbg.space();
+}

src/matrix.h

@@ -0,0 +1,36 @@
+#ifndef MATRIX_H
+#define MATRIX_H
+
+#include <cstddef>
+#include <cfloat>
+#include <QDebug>
+
+class Matrix {
+public:
+	Matrix() {_h = 0; _w = 0; _m = 0;}
+	Matrix(size_t h, size_t w);
+	Matrix(const Matrix& M);
+	~Matrix();
+
+	Matrix &operator=(const Matrix &M);
+
+	size_t h() const {return _h;}
+	size_t w() const {return _w;}
+	double &m(size_t i, size_t j) {return _m[_w * i + j];}
+	double const &m(size_t i, size_t j) const {return _m[_w * i + j];}
+
+	bool isNull() const {return (_h == 0 || _w == 0);}
+
+	void zeroize();
+	bool eliminate(double epsilon = DBL_EPSILON);
+	Matrix augemented(const Matrix &M) const;
+
+private:
+	double *_m;
+	size_t _h;
+	size_t _w;
+};
+
+QDebug operator<<(QDebug dbg, const Matrix &matrix);
+
+#endif // MATRIX_H

src/mercator.cpp

@@ -0,0 +1,13 @@
+#include <cmath>
+#include "rd.h"
+#include "mercator.h"
+
+QPointF Mercator::ll2xy(const Coordinates &c) const
+{
+	return QPointF(c.lon(), rad2deg(log(tan(M_PI/4.0 + deg2rad(c.lat())/2.0))));
+}
+
+Coordinates Mercator::xy2ll(const QPointF &p) const
+{
+	return Coordinates(p.x(), rad2deg(2 * atan(exp(deg2rad(p.y()))) - M_PI/2));
+}

src/mercator.h

@@ -0,0 +1,13 @@
+#ifndef MERCATOR_H
+#define MERCATOR_H
+
+#include "projection.h"
+
+class Mercator : public Projection
+{
+public:
+	virtual QPointF ll2xy(const Coordinates &c) const;
+	virtual Coordinates xy2ll(const QPointF &p) const;
+};
+
+#endif // MERCATOR_H

src/misc.cpp

@@ -48,3 +48,9 @@ int str2int(const char *str, int len)
 
 	return res;
 }
+
+QRectF scaled(const QRectF &rect, qreal factor)
+{
+	return QRectF(QPointF(rect.left() * factor, rect.top() * factor),
+	  QSizeF(rect.width() * factor, rect.height() * factor));
+}

src/misc.h

@@ -1,7 +1,13 @@
 #ifndef MISC_H
 #define MISC_H
 
+#include <QRectF>
+
+#define ARRAY_SIZE(array) \
+  (sizeof(array) / sizeof((array)[0]))
+
 double niceNum(double x, int round);
 int str2int(const char *str, int len);
+QRectF scaled(const QRectF &rect, qreal factor);
 
 #endif // MISC_H

src/nmeaparser.cpp

@@ -227,7 +227,7 @@ bool NMEAParser::readEW(const char *data, int len, qreal &lon)
 	return true;
 }
 
-bool NMEAParser::readRMC(const char *line, int len)
+bool NMEAParser::readRMC(TrackData &track, const char *line, int len)
 {
 	int col = 1;
 	const char *vp = line;
@@ -280,22 +280,23 @@ bool NMEAParser::readRMC(const char *line, int len)
 	}
 
 	if (!date.isNull()) {
-		if (_date.isNull() && !_time.isNull() && !_tracks.last().isEmpty())
+		if (_date.isNull() && !_time.isNull() && !track.isEmpty())
-			_tracks.last().last().setTimestamp(QDateTime(date, _time, Qt::UTC));
+			track.last().setTimestamp(QDateTime(date, _time, Qt::UTC));
 		_date = date;
 	}
 
-	if (valid && !_GGA && !std::isnan(lat) && !std::isnan(lon)) {
+	Coordinates c(lon, lat);
-		Trackpoint t(Coordinates(lon, lat));
+	if (valid && !_GGA && c.isValid()) {
+		Trackpoint t(c);
 		if (!_date.isNull() && !time.isNull())
 			t.setTimestamp(QDateTime(_date, time, Qt::UTC));
-		_tracks.last().append(t);
+		track.append(t);
 	}
 
 	return true;
 }
 
-bool NMEAParser::readGGA(const char *line, int len)
+bool NMEAParser::readGGA(TrackData &track, const char *line, int len)
 {
 	int col = 1;
 	const char *vp = line;
@@ -356,13 +357,14 @@ bool NMEAParser::readGGA(const char *line, int len)
 		return false;
 	}
 
-	if (!std::isnan(lat) && !std::isnan(lon)) {
+	Coordinates c(lon, lat);
-		Trackpoint t(Coordinates(lon, lat));
+	if (c.isValid()) {
+		Trackpoint t(c);
 		if (!(_time.isNull() || _date.isNull()))
 			t.setTimestamp(QDateTime(_date, _time, Qt::UTC));
 		if (!std::isnan(ele))
 			t.setElevation(ele - gh);
-		_tracks.last().append(t);
+		track.append(t);
 
 		_GGA = true;
 	}
@@ -370,7 +372,7 @@ bool NMEAParser::readGGA(const char *line, int len)
 	return true;
 }
 
-bool NMEAParser::readWPL(const char *line, int len)
+bool NMEAParser::readWPL(QList<Waypoint> &waypoints, const char *line, int len)
 {
 	int col = 1;
 	const char *vp = line;
@@ -411,10 +413,11 @@ bool NMEAParser::readWPL(const char *line, int len)
 		return false;
 	}
 
-	if (!std::isnan(lat) && !std::isnan(lon)) {
+	Coordinates c(lon, lat);
-		Waypoint w(Coordinates(lon, lat));
+	if (c.isValid()) {
+		Waypoint w(c);
 		w.setName(name);
-		_waypoints.append(w);
+		waypoints.append(w);
 	}
 
 	return true;
@@ -474,8 +477,10 @@ bool NMEAParser::readZDA(const char *line, int len)
 	return true;
 }
 
-bool NMEAParser::loadFile(QFile *file)
+bool NMEAParser::parse(QFile *file, QList<TrackData> &tracks,
+  QList<RouteData> &routes, QList<Waypoint> &waypoints)
 {
+	Q_UNUSED(routes);
 	qint64 len;
 	char line[80 + 2 + 1 + 1];
 
@@ -486,7 +491,8 @@ bool NMEAParser::loadFile(QFile *file)
 	_time = QTime();
 	_GGA = false;
 
-	_tracks.append(TrackData());
+	tracks.append(TrackData());
+	TrackData &track = tracks.last();
 
 	while (!file->atEnd()) {
 		len = file->readLine(line, sizeof(line));
@@ -501,16 +507,16 @@ bool NMEAParser::loadFile(QFile *file)
 
 		if (validSentence(line, len)) {
 			if (!memcmp(line + 3, "RMC,", 4)) {
-				if (!readRMC(line + 7, len))
+				if (!readRMC(track, line + 7, len - 7))
 					return false;
 			} else if (!memcmp(line + 3, "GGA,", 4)) {
-				if (!readGGA(line + 7, len))
+				if (!readGGA(track, line + 7, len - 7))
 					return false;
 			} else if (!memcmp(line + 3, "WPL,", 4)) {
-				if (!readWPL(line + 7, len))
+				if (!readWPL(waypoints, line + 7, len - 7))
 					return false;
 			} else if (!memcmp(line + 3, "ZDA,", 4)) {
-				if (!readZDA(line + 7, len))
+				if (!readZDA(line + 7, len - 7))
 					return false;
 			}
 		}
@@ -518,7 +524,7 @@ bool NMEAParser::loadFile(QFile *file)
 		_errorLine++;
 	}
 
-	if (!_tracks.last().size() && !_waypoints.size()) {
+	if (!tracks.last().size() && !waypoints.size()) {
 		_errorString = "No usable NMEA sentence found";
 		return false;
 	}

src/nmeaparser.h

@@ -8,12 +8,11 @@
 class NMEAParser : public Parser
 {
 public:
-	NMEAParser(QList<TrackData> &tracks, QList<RouteData> &routes,
+	NMEAParser() : _errorLine(0), _GGA(false) {}
-	  QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
-	  {_errorLine = 0; _GGA = false;}
 	~NMEAParser() {}
 
-	bool loadFile(QFile *file);
+	bool parse(QFile *file, QList<TrackData> &tracks,
+	  QList<RouteData> &routes, QList<Waypoint> &waypoints);
 	QString errorString() const {return _errorString;}
 	int errorLine() const {return _errorLine;}
 
@@ -27,9 +26,9 @@ private:
 	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 readRMC(TrackData &track, const char *line, int len);
-	bool readGGA(const char *line, int len);
+	bool readGGA(TrackData &track, const char *line, int len);
-	bool readWPL(const char *line, int len);
+	bool readWPL(QList<Waypoint> &waypoints, const char *line, int len);
 	bool readZDA(const char *line, int len);
 
 	int _errorLine;

src/oddspinbox.cpp

@@ -0,0 +1,20 @@
+#include "oddspinbox.h"
+
+OddSpinBox::OddSpinBox(QWidget *parent) : QSpinBox(parent)
+{
+	setSingleStep(2);
+	setMinimum(1);
+}
+
+QValidator::State OddSpinBox::validate(QString &text, int &pos) const
+{
+	Q_UNUSED(pos);
+	bool ok;
+	int val;
+
+	val = text.toInt(&ok);
+	if (!ok || val < 0 || val % 2 == 0)
+		return QValidator::Invalid;
+
+	return QValidator::Acceptable;
+}

src/oddspinbox.h

@@ -0,0 +1,15 @@
+#ifndef ODDSPINBOX_H
+#define ODDSPINBOX_H
+
+#include <QSpinBox>
+
+class OddSpinBox : public QSpinBox
+{
+public:
+	OddSpinBox(QWidget *parent = 0);
+
+protected:
+	QValidator::State validate(QString &text, int &pos) const;
+};
+
+#endif // ODDSPINBOX_H

src/offlinemap.cpp

@@ -0,0 +1,797 @@
+#include <QtGlobal>
+#include <QPainter>
+#include <QFileInfo>
+#include <QMap>
+#include <QDir>
+#include <QBuffer>
+#include <QImage>
+#include <QImageReader>
+#include <QPixmapCache>
+#include "misc.h"
+#include "rd.h"
+#include "wgs84.h"
+#include "coordinates.h"
+#include "matrix.h"
+#include "datum.h"
+#include "latlon.h"
+#include "mercator.h"
+#include "transversemercator.h"
+#include "utm.h"
+#include "lambertconic.h"
+#include "albersequal.h"
+#include "ozf.h"
+#include "rectc.h"
+#include "offlinemap.h"
+
+
+int OfflineMap::parse(QIODevice &device, QList<ReferencePoint> &points,
+  QString &projection, ProjectionSetup &setup, QString &datum)
+{
+	bool res;
+	int ln = 1;
+
+	while (!device.atEnd()) {
+		QByteArray line = device.readLine();
+
+		if (ln == 1) {
+			if (!line.trimmed().startsWith("OziExplorer Map Data File"))
+				return ln;
+		} else if (ln == 2)
+			_name = line.trimmed();
+		else if (ln == 3)
+			_imgPath = line.trimmed();
+		else if (ln == 5)
+			datum = line.split(',').at(0).trimmed();
+		else {
+			QList<QByteArray> list = line.split(',');
+			QString key(list.at(0).trimmed());
+			bool ll = true; bool pp = true;
+
+			if (key.startsWith("Point") && list.count() == 17
+			  && !list.at(2).trimmed().isEmpty()) {
+				int x = list.at(2).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+				int y = list.at(3).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+
+				int latd = list.at(6).trimmed().toInt(&res);
+				if (!res)
+					ll = false;
+				qreal latm = list.at(7).trimmed().toFloat(&res);
+				if (!res)
+					ll = false;
+				int lond = list.at(9).trimmed().toInt(&res);
+				if (!res)
+					ll = false;
+				qreal lonm = list.at(10).trimmed().toFloat(&res);
+				if (!res)
+					ll = false;
+				if (ll && list.at(8).trimmed() == "S") {
+					latd = -latd;
+					latm = -latm;
+				}
+				if (ll && list.at(11).trimmed() == "W") {
+					lond = -lond;
+					lonm = -lonm;
+				}
+
+				setup.zone = list.at(13).trimmed().toInt(&res);
+				if (!res)
+					setup.zone = 0;
+				qreal ppx = list.at(14).trimmed().toFloat(&res);
+				if (!res)
+					pp = false;
+				qreal ppy = list.at(15).trimmed().toFloat(&res);
+				if (!res)
+					pp = false;
+				if (list.at(16).trimmed() == "S")
+					setup.zone = -setup.zone;
+
+				ReferencePoint p;
+				p.xy = QPoint(x, y);
+				if (ll) {
+					p.ll = Coordinates(lond + lonm/60.0, latd + latm/60.0);
+					if (p.ll.isValid())
+						points.append(p);
+					else
+						return ln;
+				} else if (pp) {
+					p.pp = QPointF(ppx, ppy);
+					points.append(p);
+				} else
+					return ln;
+			} else if (key == "IWH") {
+				if (list.count() < 4)
+					return ln;
+				int w = list.at(2).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+				int h = list.at(3).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+				_size = QSize(w, h);
+			} else if (key == "Map Projection") {
+				if (list.count() < 2)
+					return ln;
+				projection = list.at(1);
+			} else if (key == "Projection Setup") {
+				if (list.count() < 8)
+					return ln;
+				setup.latitudeOrigin = list.at(1).trimmed().toFloat(&res);
+				if (!res)
+					setup.latitudeOrigin = 0;
+				setup.longitudeOrigin = list.at(2).trimmed().toFloat(&res);
+				if (!res)
+					setup.longitudeOrigin = 0;
+				setup.scale = list.at(3).trimmed().toFloat(&res);
+				if (!res)
+					setup.scale = 1.0;
+				setup.falseEasting = list.at(4).trimmed().toFloat(&res);
+				if (!res)
+					setup.falseEasting = 0;
+				setup.falseNorthing = list.at(5).trimmed().toFloat(&res);
+				if (!res)
+					setup.falseNorthing = 0;
+				setup.standardParallel1 = list.at(6).trimmed().toFloat(&res);
+				if (!res)
+					setup.standardParallel1 = 0;
+				setup.standardParallel2 = list.at(7).trimmed().toFloat(&res);
+				if (!res)
+					setup.standardParallel2 = 0;
+			}
+		}
+
+		ln++;
+	}
+
+	return 0;
+}
+
+bool OfflineMap::parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
+  QString &projection, ProjectionSetup &setup, QString &datum)
+{
+	int el;
+
+	if (!device.open(QIODevice::ReadOnly)) {
+		_errorString = QString("Error opening map file: %1")
+		  .arg(device.errorString());
+		return false;
+	}
+
+	if ((el = parse(device, points, projection, setup, datum))) {
+		_errorString = QString("Map file parse error on line %1").arg(el);
+		return false;
+	}
+
+	return true;
+}
+
+bool OfflineMap::createProjection(const QString &datum,
+  const QString &projection, const ProjectionSetup &setup,
+  QList<ReferencePoint> &points)
+{
+	if (points.count() < 2) {
+		_errorString = "Insufficient number of reference points";
+		return false;
+	}
+
+	Datum d = Datum::datum(datum);
+	if (d.isNull()) {
+		_errorString = QString("%1: Unknown datum").arg(datum);
+		return false;
+	}
+
+	if (setup.latitudeOrigin < -90.0 || setup.latitudeOrigin > 90.0
+	  || setup.longitudeOrigin < -180.0 || setup.longitudeOrigin > 180.0
+	  || setup.standardParallel1 < -90.0 || setup.standardParallel1 > 90.0
+	  || setup.standardParallel2 < -90.0 || setup.standardParallel2 > 90.0) {
+		_errorString = "Invalid projection setup";
+		return false;
+	}
+
+	if (projection == "Mercator")
+		_projection = new Mercator();
+	else if (projection == "Transverse Mercator")
+		_projection = new TransverseMercator(d.ellipsoid(),
+		  setup.latitudeOrigin, setup.longitudeOrigin, setup.scale,
+		  setup.falseEasting, setup.falseNorthing);
+	else if (projection == "Latitude/Longitude")
+		_projection = new LatLon();
+	else if (projection == "Lambert Conformal Conic")
+		_projection = new LambertConic(d.ellipsoid(),
+		  setup.standardParallel1, setup.standardParallel2,
+		  setup.latitudeOrigin, setup.longitudeOrigin, setup.scale,
+		  setup.falseEasting, setup.falseNorthing);
+	else if (projection == "Albers Equal Area")
+		_projection = new AlbersEqual(d.ellipsoid(), setup.standardParallel1,
+		  setup.standardParallel2, setup.latitudeOrigin, setup.longitudeOrigin,
+		  setup.falseEasting, setup.falseNorthing);
+	else if (projection == "(UTM) Universal Transverse Mercator") {
+		if (setup.zone)
+			_projection = new UTM(d.ellipsoid(), setup.zone);
+		else if (!points.first().ll.isNull())
+			_projection = new UTM(d.ellipsoid(), points.first().ll);
+		else {
+			_errorString = "Can not determine UTM zone";
+			return false;
+		}
+	} else if (projection == "(NZTM2) New Zealand TM 2000")
+		_projection = new TransverseMercator(d.ellipsoid(), 0, 173.0, 0.9996,
+		  1600000, 10000000);
+	else if (projection == "(BNG) British National Grid")
+		_projection = new TransverseMercator(d.ellipsoid(), 49, -2, 0.999601,
+		  400000, -100000);
+	else if (projection == "(IG) Irish Grid")
+		_projection = new TransverseMercator(d.ellipsoid(), 53.5, -8, 1.000035,
+		  200000, 250000);
+	else if (projection == "(SG) Swedish Grid")
+		_projection = new TransverseMercator(d.ellipsoid(), 0, 15.808278, 1,
+		  1500000, 0);
+	else if (projection == "(I) France Zone I")
+		_projection = new LambertConic(d.ellipsoid(), 48.598523, 50.395912,
+		  49.5, 2.337229, 1 /*0.99987734*/, 600000, 1200000);
+	else if (projection == "(II) France Zone II")
+		_projection = new LambertConic(d.ellipsoid(), 45.898919, 47.696014,
+		  46.8, 2.337229, 1 /*0.99987742*/, 600000, 2200000);
+	else if (projection == "(III) France Zone III")
+		_projection = new LambertConic(d.ellipsoid(), 43.199291, 44.996094,
+		  44.1, 2.337229, 1 /*0.99987750*/, 600000, 3200000);
+	else if (projection == "(IV) France Zone IV")
+		_projection = new LambertConic(d.ellipsoid(), 41.560388, 42.767663,
+		  42.165, 2.337229, 1 /*0.99994471*/, 234.358, 4185861.369);
+	else if (projection == "(VICGRID) Victoria Australia")
+		_projection = new LambertConic(d.ellipsoid(), -36, -38, -37, 145, 1,
+		  2500000, 4500000);
+	else if (projection == "(VG94) VICGRID94 Victoria Australia")
+		_projection = new LambertConic(d.ellipsoid(), -36, -38, -37, 145, 1,
+		  2500000, 2500000);
+	else {
+		_errorString = QString("%1: Unknown map projection").arg(projection);
+		return false;
+	}
+
+	for (int i = 0; i < points.size(); i++) {
+		if (points.at(i).ll.isNull())
+			points[i].ll = d.toWGS84(_projection->xy2ll(points.at(i).pp));
+		else
+			points[i].ll = d.toWGS84(points[i].ll);
+	}
+
+	return true;
+}
+
+bool OfflineMap::simpleTransformation(const QList<ReferencePoint> &points)
+{
+	if (points.at(0).xy.x() == points.at(1).xy.x()
+	  || points.at(0).xy.y() == points.at(1).xy.y()) {
+		_errorString = "Invalid reference points tuple";
+		return false;
+	}
+
+	QPointF p0(_projection->ll2xy(points.at(0).ll));
+	QPointF p1(_projection->ll2xy(points.at(1).ll));
+
+	qreal dX, dY, lat0, lon0;
+	dX = (p0.x() - p1.x()) / (points.at(0).xy.x() - points.at(1).xy.x());
+	dY = (p1.y() - p0.y()) / (points.at(1).xy.y() - points.at(0).xy.y());
+	lat0 = p0.y() - points.at(0).xy.y() * dY;
+	lon0 = p1.x() - points.at(1).xy.x() * dX;
+
+	_transform = QTransform(1.0/dX, 0, 0, 1.0/dY, -lon0/dX, -lat0/dY);
+	_inverted = _transform.inverted();
+
+	return true;
+}
+
+bool OfflineMap::affineTransformation(const QList<ReferencePoint> &points)
+{
+	Matrix c(3, 2);
+	c.zeroize();
+	for (size_t i = 0; i < c.h(); i++) {
+		for (size_t j = 0; j < c.w(); j++) {
+			for (int k = 0; k < points.size(); k++) {
+				double f[3], t[2];
+				QPointF p = _projection->ll2xy(points.at(k).ll);
+
+				f[0] = p.x();
+				f[1] = p.y();
+				f[2] = 1.0;
+				t[0] = points.at(k).xy.x();
+				t[1] = points.at(k).xy.y();
+				c.m(i,j) += f[i] * t[j];
+			}
+		}
+	}
+
+	Matrix Q(3, 3);
+	Q.zeroize();
+	for (int qi = 0; qi < points.size(); qi++) {
+		double v[3];
+		QPointF p = _projection->ll2xy(points.at(qi).ll);
+
+		v[0] = p.x();
+		v[1] = p.y();
+		v[2] = 1.0;
+		for (size_t i = 0; i < Q.h(); i++)
+			for (size_t j = 0; j < Q.w(); j++)
+				Q.m(i,j) += v[i] * v[j];
+	}
+
+	Matrix M = Q.augemented(c);
+	if (!M.eliminate()) {
+		_errorString = "Singular transformation matrix";
+		return false;
+	}
+
+	_transform = QTransform(M.m(0,3), M.m(0,4), M.m(1,3), M.m(1,4), M.m(2,3),
+	  M.m(2,4));
+	_inverted = _transform.inverted();
+
+	return true;
+}
+
+bool OfflineMap::computeTransformation(const QList<ReferencePoint> &points)
+{
+	Q_ASSERT(points.size() >= 2);
+
+	if (points.size() == 2)
+		return simpleTransformation(points);
+	else
+		return affineTransformation(points);
+}
+
+bool OfflineMap::computeResolution(QList<ReferencePoint> &points)
+{
+	Q_ASSERT(points.count() >= 2);
+
+	int maxLon = 0, minLon = 0, maxLat = 0, minLat = 0;
+	qreal dLon, pLon, dLat, pLat;
+
+	for (int i = 1; i < points.size(); i++) {
+		if (points.at(i).ll.lon() < points.at(minLon).ll.lon())
+			minLon = i;
+		if (points.at(i).ll.lon() > points.at(maxLon).ll.lon())
+			maxLon = i;
+		if (points.at(i).ll.lat() < points.at(minLat).ll.lon())
+			minLat = i;
+		if (points.at(i).ll.lat() > points.at(maxLat).ll.lon())
+			maxLat = i;
+	}
+
+	dLon = points.at(minLon).ll.distanceTo(points.at(maxLon).ll);
+	pLon = QLineF(points.at(minLon).xy, points.at(maxLon).xy).length();
+	dLat = points.at(minLat).ll.distanceTo(points.at(maxLat).ll);
+	pLat = QLineF(points.at(minLat).xy, points.at(maxLat).xy).length();
+
+	_resolution = (dLon/pLon + dLat/pLat) / 2.0;
+
+	return true;
+}
+
+bool OfflineMap::getImageInfo(const QString &path)
+{
+	QFileInfo ii(_imgPath);
+
+	if (ii.isRelative())
+		ii.setFile(path + "/" + _imgPath);
+
+	if (!ii.exists()) {
+		int last = _imgPath.lastIndexOf('\\');
+		if (last >= 0 && last < _imgPath.length() - 1) {
+			QStringRef fn(&_imgPath, last + 1, _imgPath.length() - last - 1);
+			ii.setFile(path + "/" + fn.toString());
+		}
+	}
+
+	if (ii.exists())
+		_imgPath = ii.absoluteFilePath();
+	else {
+		_errorString = QString("%1: No such image file").arg(_imgPath);
+		return false;
+	}
+
+	if (OZF::isOZF(_imgPath)) {
+		if (!_ozf.load(_imgPath)) {
+			_errorString = QString("%1: Error loading OZF file")
+			  .arg(QFileInfo(_imgPath).fileName());
+			return false;
+		}
+	} else {
+		QImageReader img(_imgPath);
+		_size = img.size();
+		if (!_size.isValid()) {
+			_errorString = QString("%1: Error reading map image")
+			  .arg(QFileInfo(_imgPath).fileName());
+			return false;
+		}
+	}
+
+	return true;
+}
+
+bool OfflineMap::getTileInfo(const QStringList &tiles, const QString &path)
+{
+	QRegExp rx("_[0-9]+_[0-9]+\\.");
+	for (int i = 0; i < tiles.size(); i++) {
+		if (tiles.at(i).contains(rx)) {
+			_tileName = QString(tiles.at(i)).replace(rx, "_%1_%2.");
+
+			if (path.isNull()) {
+				QByteArray ba = _tar.file(tiles.at(i));
+				QBuffer buffer(&ba);
+				_tileSize = QImageReader(&buffer).size();
+			} else {
+				_tileName = path + "/" + _tileName;
+				_tileSize = QImageReader(path + "/" + tiles.at(i)).size();
+			}
+			if (!_tileSize.isValid()) {
+				_errorString = QString("Error retrieving tile size: "
+				  "%1: Invalid image").arg(QFileInfo(tiles.at(i)).fileName());
+				return false;
+			}
+
+			return true;
+		}
+	}
+
+	_errorString = "Invalid/missing tile set";
+	return false;
+}
+
+bool OfflineMap::totalSizeSet()
+{
+	if (!_size.isValid()) {
+		_errorString = "Missing total image size (IWH)";
+		return false;
+	} else
+		return true;
+}
+
+OfflineMap::OfflineMap(const QString &fileName, QObject *parent)
+  : Map(parent)
+{
+	QList<ReferencePoint> points;
+	QString proj, datum;
+	ProjectionSetup setup;
+	QFileInfo fi(fileName);
+	QString suffix = fi.suffix().toLower();
+
+
+	_valid = false;
+	_img = 0;
+	_projection = 0;
+	_resolution = 0.0;
+	_zoom = 0;
+	_scale = QPointF(1.0, 1.0);
+
+	if (suffix == "tar") {
+		if (!_tar.load(fileName)) {
+			_errorString = "Error reading tar file";
+			return;
+		}
+
+		QString mapFileName = fi.completeBaseName() + ".map";
+		QByteArray ba = _tar.file(mapFileName);
+		if (ba.isNull()) {
+			_errorString = "Map file not found";
+			return;
+		}
+		QBuffer mapFile(&ba);
+		if (!parseMapFile(mapFile, points, proj, setup, datum))
+			return;
+	} else if (suffix =="map") {
+		QFile mapFile(fileName);
+		if (!parseMapFile(mapFile, points, proj, setup, datum))
+			return;
+	} else {
+		_errorString = "Not a map file";
+		return;
+	}
+
+	if (!createProjection(datum, proj, setup, points))
+		return;
+	if (!computeTransformation(points))
+		return;
+	computeResolution(points);
+
+	if (_tar.isOpen()) {
+		if (!totalSizeSet())
+			return;
+		if (!getTileInfo(_tar.files()))
+			return;
+		_imgPath = QString();
+	} else {
+		QDir set(fi.absolutePath() + "/" + "set");
+		if (set.exists()) {
+			if (!totalSizeSet())
+				return;
+			if (!getTileInfo(set.entryList(), set.absolutePath()))
+				return;
+			_imgPath = QString();
+		} else {
+			if (!getImageInfo(fi.absolutePath()))
+				return;
+		}
+	}
+
+	_valid = true;
+}
+
+OfflineMap::OfflineMap(const QString &fileName, Tar &tar, QObject *parent)
+  : Map(parent)
+{
+	QList<ReferencePoint> points;
+	QString proj, datum;
+	ProjectionSetup setup;
+	QFileInfo fi(fileName);
+
+	_valid = false;
+	_img = 0;
+	_projection = 0;
+	_resolution = 0.0;
+	_zoom = 0;
+	_scale = QPointF(1.0, 1.0);
+
+	QFileInfo map(fi.absolutePath());
+	QFileInfo layer(map.absolutePath());
+	QString mapFile = layer.fileName() + "/" + map.fileName() + "/"
+	  + fi.fileName();
+	QByteArray ba = tar.file(mapFile);
+	if (ba.isNull()) {
+		_errorString = "Map file not found";
+		return;
+	}
+	QBuffer buffer(&ba);
+
+	if (!parseMapFile(buffer, points, proj, setup, datum))
+		return;
+	if (!createProjection(datum, proj, setup, points))
+		return;
+	if (!totalSizeSet())
+		return;
+	if (!computeTransformation(points))
+		return;
+	computeResolution(points);
+
+
+	_tarPath = fi.absolutePath() + "/" + fi.completeBaseName() + ".tar";
+	_imgPath = QString();
+	_valid = true;
+}
+
+OfflineMap::~OfflineMap()
+{
+	if (_img)
+		delete _img;
+	if (_projection)
+		delete _projection;
+}
+
+void OfflineMap::load()
+{
+	if (!_tarPath.isNull() && !_tileSize.isValid()) {
+		if (!_tar.load(_tarPath)) {
+			qWarning("%s: error loading tar file", qPrintable(_tarPath));
+			return;
+		}
+		if (!getTileInfo(_tar.files()))
+			qWarning("%s: %s", qPrintable(_tarPath), qPrintable(_errorString));
+		return;
+	}
+
+	if (!_img && !_imgPath.isNull() && !_ozf.isOpen()) {
+		_img = new QImage(_imgPath);
+		if (_img->isNull())
+			qWarning("%s: error loading map image", qPrintable(_imgPath));
+	}
+}
+
+void OfflineMap::unload()
+{
+	if (_img) {
+		delete _img;
+		_img = 0;
+	}
+}
+
+void OfflineMap::drawTiled(QPainter *painter, const QRectF &rect)
+{
+	QPoint tl = QPoint((int)floor(rect.left() / (qreal)_tileSize.width())
+	  * _tileSize.width(), (int)floor(rect.top() / _tileSize.height())
+	  * _tileSize.height());
+
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	for (int i = 0; i < ceil(s.width() / _tileSize.width()); i++) {
+		for (int j = 0; j < ceil(s.height() / _tileSize.height()); j++) {
+			int x = tl.x() + i * _tileSize.width();
+			int y = tl.y() + j * _tileSize.height();
+
+			if (!QRectF(QPointF(x, y), _tileSize).intersects(bounds())) {
+				painter->fillRect(QRectF(QPoint(x, y), _tileSize),
+				  _backgroundColor);
+				continue;
+			}
+
+			QString tileName(_tileName.arg(QString::number(x),
+			  QString::number(y)));
+			QPixmap pixmap;
+
+			if (_tar.isOpen()) {
+				QString key = _tar.fileName() + "/" + tileName;
+				if (!QPixmapCache::find(key, &pixmap)) {
+					QByteArray ba = _tar.file(tileName);
+					pixmap = QPixmap::fromImage(QImage::fromData(ba));
+					if (!pixmap.isNull())
+						QPixmapCache::insert(key, pixmap);
+				}
+			} else
+				pixmap = QPixmap(tileName);
+
+			if (pixmap.isNull()) {
+				qWarning("%s: error loading tile image", qPrintable(
+				  _tileName.arg(QString::number(x), QString::number(y))));
+				painter->fillRect(QRectF(QPoint(x, y), _tileSize),
+				  _backgroundColor);
+			} else
+				painter->drawPixmap(QPoint(x, y), pixmap);
+		}
+	}
+}
+
+void OfflineMap::drawOZF(QPainter *painter, const QRectF &rect)
+{
+	QPoint tl = QPoint((int)floor(rect.left() / _ozf.tileSize().width())
+	  * _ozf.tileSize().width(), (int)floor(rect.top()
+	  / _ozf.tileSize().height()) * _ozf.tileSize().height());
+
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	for (int i = 0; i < ceil(s.width() / _ozf.tileSize().width()); i++) {
+		for (int j = 0; j < ceil(s.height() / _ozf.tileSize().height()); j++) {
+			int x = tl.x() + i * _ozf.tileSize().width();
+			int y = tl.y() + j * _ozf.tileSize().height();
+
+			if (!QRectF(QPointF(x, y), _ozf.tileSize()).intersects(bounds())) {
+				painter->fillRect(QRectF(QPoint(x, y), _ozf.tileSize()),
+				  _backgroundColor);
+				continue;
+			}
+
+			QPixmap pixmap;
+			QString key = _ozf.fileName() + "/" + QString::number(_zoom) + "_"
+			  + QString::number(x) + "_" + QString::number(y);
+			if (!QPixmapCache::find(key, &pixmap)) {
+				pixmap = _ozf.tile(_zoom, x, y);
+				if (!pixmap.isNull())
+					QPixmapCache::insert(key, pixmap);
+			}
+
+			if (pixmap.isNull()) {
+				qWarning("%s: error loading tile image", qPrintable(key));
+				painter->fillRect(QRectF(QPoint(x, y), _ozf.tileSize()),
+				  _backgroundColor);
+			} else
+				painter->drawPixmap(QPoint(x, y), pixmap);
+		}
+	}
+}
+
+void OfflineMap::drawImage(QPainter *painter, const QRectF &rect)
+{
+	if (!_img || _img->isNull())
+		painter->fillRect(rect, _backgroundColor);
+	else {
+		QRect r(rect.toRect());
+		painter->drawImage(r.left(), r.top(), *_img, r.left(), r.top(),
+		  r.width(), r.height());
+	}
+}
+
+void OfflineMap::draw(QPainter *painter, const QRectF &rect)
+{
+	if (_ozf.isOpen())
+		drawOZF(painter, rect);
+	else if (_tileSize.isValid())
+		drawTiled(painter, rect);
+	else
+		drawImage(painter, rect);
+}
+
+QPointF OfflineMap::ll2xy(const Coordinates &c)
+{
+	if (_ozf.isOpen()) {
+		QPointF p(_transform.map(_projection->ll2xy(c)));
+		return QPointF(p.x() * _scale.x(), p.y() * _scale.y());
+	} else
+		return _transform.map(_projection->ll2xy(c));
+}
+
+Coordinates OfflineMap::xy2ll(const QPointF &p)
+{
+	if (_ozf.isOpen()) {
+		return _projection->xy2ll(_inverted.map(QPointF(p.x() / _scale.x(),
+		  p.y() / _scale.y())));
+	} else
+		return _projection->xy2ll(_inverted.map(p));
+}
+
+QRectF OfflineMap::bounds() const
+{
+	if (_ozf.isOpen())
+		return QRectF(QPointF(0, 0), _ozf.size(_zoom));
+	else
+		return QRectF(QPointF(0, 0), _size);
+}
+
+qreal OfflineMap::resolution(const QPointF &p) const
+{
+	Q_UNUSED(p);
+
+	if (_ozf.isOpen())
+		return _resolution / ((_scale.x() + _scale.y()) / 2.0);
+	else
+		return _resolution;
+}
+
+qreal OfflineMap::zoomFit(const QSize &size, const RectC &br)
+{
+	if (_ozf.isOpen()) {
+		if (!br.isValid())
+			rescale(0);
+		else {
+			QRect sbr(QRectF(_transform.map(_projection->ll2xy(br.topLeft())),
+			  _transform.map(_projection->ll2xy(br.bottomRight())))
+			  .toRect().normalized());
+
+			for (int i = 0; i < _ozf.zooms(); i++) {
+				rescale(i);
+				if (sbr.size().width() * _scale.x() <= size.width()
+				  && sbr.size().height() * _scale.y() <= size.height())
+					break;
+			}
+		}
+	}
+
+	return _zoom;
+}
+
+qreal OfflineMap::zoomFit(qreal resolution, const Coordinates &c)
+{
+	Q_UNUSED(c);
+
+	if (_ozf.isOpen()) {
+		for (int i = 0; i < _ozf.zooms(); i++) {
+			rescale(i);
+			qreal sr = _resolution / ((_scale.x() + _scale.y()) / 2.0);
+			if (sr >= resolution)
+				break;
+		}
+	}
+
+	return _zoom;
+}
+
+qreal OfflineMap::zoomIn()
+{
+	if (_ozf.isOpen())
+		rescale(qMax(_zoom - 1, 0));
+
+	return _zoom;
+}
+
+qreal OfflineMap::zoomOut()
+{
+	if (_ozf.isOpen())
+		rescale(qMin(_zoom + 1, _ozf.zooms() - 1));
+
+	return _zoom;
+}
+
+void OfflineMap::rescale(int zoom)
+{
+	_zoom = zoom;
+	_scale = QPointF(
+	  (qreal)_ozf.size(_zoom).width() / (qreal)_ozf.size(0).width(),
+	  (qreal)_ozf.size(_zoom).height() / (qreal)_ozf.size(0).height());
+}

src/offlinemap.h

@@ -0,0 +1,112 @@
+#ifndef OFFLINEMAP_H
+#define OFFLINEMAP_H
+
+#include <QTransform>
+#include "map.h"
+#include "tar.h"
+#include "ozf.h"
+#include "coordinates.h"
+#include "projection.h"
+
+
+class QIODevice;
+class QImage;
+
+class OfflineMap : public Map
+{
+	Q_OBJECT
+
+public:
+	OfflineMap(const QString &fileName, QObject *parent = 0);
+	OfflineMap(const QString &fileName, Tar &tar, QObject *parent = 0);
+	~OfflineMap();
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const {return _zoom;}
+	qreal zoomFit(const QSize &size, const RectC &br);
+	qreal zoomFit(qreal resolution, const Coordinates &c);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c);
+	Coordinates xy2ll(const QPointF &p);
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void load();
+	void unload();
+
+	bool isValid() const {return _valid;}
+	const QString &errorString() const {return _errorString;}
+
+	QPointF ll2pp(const Coordinates &c) const
+	  {return _projection->ll2xy(c);}
+	QPointF xy2pp(const QPointF &p) const
+	  {return _inverted.map(p);}
+	QPointF pp2xy(const QPointF &p) const
+	  {return _transform.map(p);}
+
+private:
+	struct ReferencePoint {
+		QPoint xy;
+		Coordinates ll;
+		QPointF pp;
+	};
+
+	struct ProjectionSetup {
+		double latitudeOrigin;
+		double longitudeOrigin;
+		double scale;
+		double falseEasting;
+		double falseNorthing;
+		double standardParallel1;
+		double standardParallel2;
+		int zone;
+	};
+
+	int parse(QIODevice &device, QList<ReferencePoint> &points,
+	  QString &projection, ProjectionSetup &setup, QString &datum);
+	bool parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
+	  QString &projection, ProjectionSetup &setup, QString &datum);
+	bool totalSizeSet();
+	bool createProjection(const QString &datum, const QString &projection,
+	  const ProjectionSetup &setup, QList<ReferencePoint> &points);
+	bool simpleTransformation(const QList<ReferencePoint> &points);
+	bool affineTransformation(const QList<ReferencePoint> &points);
+	bool computeTransformation(const QList<ReferencePoint> &points);
+	bool computeResolution(QList<ReferencePoint> &points);
+	bool getTileInfo(const QStringList &tiles, const QString &path = QString());
+	bool getImageInfo(const QString &path);
+
+	void drawTiled(QPainter *painter, const QRectF &rect);
+	void drawOZF(QPainter *painter, const QRectF &rect);
+	void drawImage(QPainter *painter, const QRectF &rect);
+
+	void rescale(int zoom);
+
+	QString _name;
+	bool _valid;
+	QString _errorString;
+
+	QSize _size;
+	Projection *_projection;
+	QTransform _transform, _inverted;
+	qreal _resolution;
+
+	OZF _ozf;
+	Tar _tar;
+	QString _tarPath;
+	QImage *_img;
+	QString _imgPath;
+	QSize _tileSize;
+	QString _tileName;
+
+	int _zoom;
+	QPointF _scale;
+};
+
+#endif // OFFLINEMAP_H

src/onlinemap.cpp

@@ -0,0 +1,269 @@
+#include <QFileInfo>
+#include <QDir>
+#include <QPainter>
+#include "rectc.h"
+#include "downloader.h"
+#include "config.h"
+#include "rd.h"
+#include "wgs84.h"
+#include "misc.h"
+#include "coordinates.h"
+#include "mercator.h"
+#include "onlinemap.h"
+
+
+#define TILE_SIZE     256
+
+static QPoint mercator2tile(const QPointF &m, int z)
+{
+	QPoint tile;
+
+	tile.setX((int)(floor((m.x() + 180.0) / 360.0 * (1<<z))));
+	tile.setY((int)(floor((1.0 - (m.y() / 180.0)) / 2.0 * (1<<z))));
+
+	return tile;
+}
+
+static qreal zoom2scale(int zoom)
+{
+	return (360.0/(qreal)((1<<zoom) * TILE_SIZE));
+}
+
+static int scale2zoom(qreal scale)
+{
+	return (int)log2(360.0/(scale * (qreal)TILE_SIZE));
+}
+
+static bool loadTileFile(Tile &tile, const QString &file)
+{
+	if (!tile.pixmap().load(file)) {
+		qWarning("%s: error loading tile file\n", qPrintable(file));
+		return false;
+	}
+
+	return true;
+}
+
+
+Downloader *OnlineMap::downloader;
+
+OnlineMap::OnlineMap(const QString &name, const QString &url,
+  const Range &zooms, QObject *parent) : Map(parent)
+{
+	_name = name;
+	_url = url;
+	_block = false;
+	_zooms = zooms;
+	_zoom = zooms.max();
+
+	QString path = TILES_DIR + QString("/") + name;
+	if (!QDir().mkpath(path))
+		qWarning("Error creating tiles dir: %s\n", qPrintable(path));
+}
+
+void OnlineMap::load()
+{
+	connect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
+}
+
+void OnlineMap::unload()
+{
+	disconnect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
+}
+
+void OnlineMap::fillTile(Tile &tile)
+{
+	tile.pixmap() = QPixmap(TILE_SIZE, TILE_SIZE);
+	tile.pixmap().fill(_backgroundColor);
+}
+
+void OnlineMap::emitLoaded()
+{
+	emit loaded();
+}
+
+void OnlineMap::loadTilesAsync(QList<Tile> &list)
+{
+	QList<Download> dl;
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+		QString file = tileFile(t);
+		QFileInfo fi(file);
+
+		if (!fi.exists()) {
+			fillTile(t);
+			dl.append(Download(tileUrl(t), file));
+		} else
+			loadTileFile(t, file);
+	}
+
+	if (!dl.empty())
+		downloader->get(dl);
+}
+
+void OnlineMap::loadTilesSync(QList<Tile> &list)
+{
+	QList<Download> dl;
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+		QString file = tileFile(t);
+		QFileInfo fi(file);
+
+		if (!fi.exists())
+			dl.append(Download(tileUrl(t), file));
+		else
+			loadTileFile(t, file);
+	}
+
+	if (dl.empty())
+		return;
+
+	QEventLoop wait;
+	connect(downloader, SIGNAL(finished()), &wait, SLOT(quit()));
+	if (downloader->get(dl))
+		wait.exec();
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+
+		if (t.pixmap().isNull()) {
+			QString file = tileFile(t);
+			QFileInfo fi(file);
+
+			if (!(fi.exists() && loadTileFile(t, file)))
+				fillTile(t);
+		}
+	}
+}
+
+QString OnlineMap::tileUrl(const Tile &tile) const
+{
+	QString url(_url);
+
+	url.replace("$z", QString::number(tile.zoom()));
+	url.replace("$x", QString::number(tile.xy().x()));
+	url.replace("$y", QString::number(tile.xy().y()));
+
+	return url;
+}
+
+QString OnlineMap::tileFile(const Tile &tile) const
+{
+	QString file = TILES_DIR + QString("/%1/%2-%3-%4").arg(name())
+	  .arg(tile.zoom()).arg(tile.xy().x()).arg(tile.xy().y());
+
+	return file;
+}
+
+void OnlineMap::clearCache()
+{
+	QString path = TILES_DIR + QString("/") + name();
+	QDir dir = QDir(path);
+	QStringList list = dir.entryList();
+
+	for (int i = 0; i < list.count(); i++)
+		dir.remove(list.at(i));
+}
+
+QRectF OnlineMap::bounds() const
+{
+	return scaled(QRectF(QPointF(-180, -180), QSizeF(360, 360)),
+	  1.0/zoom2scale(_zoom));
+}
+
+int OnlineMap::limitZoom(int zoom) const
+{
+	if (zoom < _zooms.min())
+		return _zooms.min();
+	if (zoom > _zooms.max())
+		return _zooms.max();
+
+	return zoom;
+}
+
+qreal OnlineMap::zoomFit(const QSize &size, const RectC &br)
+{
+	if (!br.isValid())
+		_zoom = _zooms.max();
+	else {
+		QRectF tbr(Mercator().ll2xy(br.topLeft()),
+		  Mercator().ll2xy(br.bottomRight()));
+		QPointF sc(tbr.width() / size.width(), tbr.height() / size.height());
+
+		_zoom = limitZoom(scale2zoom(qMax(sc.x(), sc.y())));
+	}
+
+	return _zoom;
+}
+
+qreal OnlineMap::zoomFit(qreal resolution, const Coordinates &c)
+{
+	_zoom = limitZoom((int)(log2((WGS84_RADIUS * 2 * M_PI
+	  * cos(deg2rad(c.lat()))) / resolution) - log2(TILE_SIZE)));
+
+	return _zoom;
+}
+
+qreal OnlineMap::resolution(const QPointF &p) const
+{
+	qreal scale = zoom2scale(_zoom);
+
+	return (WGS84_RADIUS * 2 * M_PI * scale / 360.0
+	  * cos(2.0 * atan(exp(deg2rad(-p.y() * scale))) - M_PI/2));
+}
+
+qreal OnlineMap::zoomIn()
+{
+	_zoom = qMin(_zoom + 1, _zooms.max());
+	return _zoom;
+}
+
+qreal OnlineMap::zoomOut()
+{
+	_zoom = qMax(_zoom - 1, _zooms.min());
+	return _zoom;
+}
+
+void OnlineMap::draw(QPainter *painter, const QRectF &rect)
+{
+	qreal scale = zoom2scale(_zoom);
+
+	QPoint tile = mercator2tile(QPointF(rect.topLeft().x() * scale,
+	  -rect.topLeft().y() * scale), _zoom);
+	QPoint tl = QPoint((int)floor(rect.left() / (qreal)TILE_SIZE)
+	  * TILE_SIZE, (int)floor(rect.top() / TILE_SIZE) * TILE_SIZE);
+
+	QList<Tile> tiles;
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	for (int i = 0; i < ceil(s.width() / TILE_SIZE); i++)
+		for (int j = 0; j < ceil(s.height() / TILE_SIZE); j++)
+			tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), _zoom));
+
+	if (_block)
+		loadTilesSync(tiles);
+	else
+		loadTilesAsync(tiles);
+
+	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());
+	}
+}
+
+QPointF OnlineMap::ll2xy(const Coordinates &c)
+{
+	qreal scale = zoom2scale(_zoom);
+	QPointF m = Mercator().ll2xy(c);
+	return QPointF(m.x() / scale, m.y() / -scale);
+}
+
+Coordinates OnlineMap::xy2ll(const QPointF &p)
+{
+	qreal scale = zoom2scale(_zoom);
+	QPointF m(p.x() * scale, -p.y() * scale);
+	return Mercator().xy2ll(m);
+}