Fixed typos

Merge branch 'origin/master' into Weblate.
Translated using Weblate (Hungarian)
2025-07-16 03:44:24 +02:00 · 2021-01-18 23:00:23 +01:00 · 2021-01-18 22:48:44 +01:00 · 2021-01-18 22:48:44 +01:00 · 2021-01-18 22:48:44 +01:00 · 2021-01-18 22:48:43 +01:00
156 changed files with 9183 additions and 5868 deletions
--- a/.appveyor.yml
+++ b/.appveyor.yml
@ -1,32 +1,39 @@
-version: 7.38.{build}
+version: 8.2.{build}

 configuration:
  - Release

 image:
-  - Visual Studio 2017
+  - Visual Studio 2019

 environment:
  NSISDIR: C:\Program Files (x86)\NSIS
  matrix:
-  - QTDIR: C:\Qt\5.13\msvc2017
+  - QTDIR: C:\Qt\5.15\msvc2019
    NSI: gpxsee.nsi
    VCVARS: vcvars32.bat
    OPENSSLDIR: C:\OpenSSL-v111-Win32\bin
    LIBCRYPTO: libssl-1_1.dll
    LIBSSL: libcrypto-1_1.dll
-  - QTDIR: C:\Qt\5.13\msvc2017_64
+  - QTDIR: C:\Qt\5.15\msvc2019_64
    NSI: gpxsee64.nsi
    VCVARS: vcvars64.bat
    OPENSSLDIR: C:\OpenSSL-v111-Win64\bin
    LIBCRYPTO: libssl-1_1-x64.dll
-    LIBSSL: libcrypto-1_1-x64.dll    
+    LIBSSL: libcrypto-1_1-x64.dll
+  - QTDIR: C:\Qt\6.0\msvc2019_64
+    NSI: gpxsee64.nsi
+    VCVARS: vcvars64.bat
+    OPENSSLDIR: C:\OpenSSL-v111-Win64\bin
+    LIBCRYPTO: libssl-1_1-x64.dll
+    LIBSSL: libcrypto-1_1-x64.dll
+    NSISDEF: /DQT6

 install:
 - cmd: >-
    set PATH=%QTDIR%\bin;%NSISDIR%;%PATH%

-    call "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\"%VCVARS%
+    call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\"%VCVARS%

 build_script:
 - cmd: >-
@ -60,6 +67,6 @@ build_script:
    copy %OPENSSLDIR%\%LIBSSL% installer


-    makensis.exe installer\%NSI%
+    makensis.exe %NSISDEF% installer\%NSI%
 artifacts:
 - path: installer\GPXSee-*.exe
--- a/.travis.yml
+++ b/.travis.yml
@ -4,13 +4,15 @@ os:
  - linux
  - osx

+dist: focal
+
 before_install:
  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get -qq update; fi
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi

 install:
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install qt; fi
-  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install libqt4-dev libqt4-opengl-dev; fi
+  - if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo apt-get install qtbase5-dev qtbase5-private-dev libqt5opengl5-dev qttools5-dev-tools; fi

 script:
  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then PATH=/usr/local/opt/qt/bin/:${PATH}; fi
--- a/README.md
+++ b/README.md
@ -4,7 +4,7 @@ GPXSee is a Qt-based GPS log file viewer and analyzer that supports all common G
 ## Features
 * Opens GPX, TCX, FIT, KML, NMEA, IGC, CUP, SIGMA SLF, Suunto SML, LOC, GeoJSON, OziExplorer (PLT, RTE, WPT), Garmin GPI&CSV and geotagged JPEG files.
 * User-definable online maps (OpenStreetMap/Google tiles, WMTS, WMS, TMS, QuadTiles).
-* Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases, Garmin IMG/GMAP & JNX maps, TwoNav RMaps, GeoTIFF images).
+* Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases, Garmin IMG/GMAP & JNX maps, TwoNav RMaps, GeoTIFF images, BSB charts, KMZ maps).
 * Elevation, speed, heart rate, cadence, power, temperature and gear ratio/shifts graphs.
 * Support for DEM files (SRTM HGT).
 * Support for multiple tracks in one view.
@ -18,8 +18,8 @@ GPXSee is a Qt-based GPS log file viewer and analyzer that supports all common G

 ## Build
 Build requirements:
-* Qt 4.8 or QT 5.x (Qt >= 5.10.1 recommended for all features)
-* C++03 or newer compiler (tested: msvc2015, gcc >= 4.8, clang/Apple LLVM version 8.1.0)
+* Qt5 >= 5.11 or Qt 6.x
+* C++11 or newer compiler (tested: msvc2017, gcc 7.5.0, clang/Apple LLVM version 10.0.0)

 Build steps:
 ```shell
@ -51,6 +51,7 @@ licenses:
 * [Mapbox Maki icons](icons/POI) - CC0
 * [RTree implementation](src/common/rtree.h) - Public domain
 * [Albers](src/map/albersequal.cpp), [Geocentric](src/map/geocentric.cpp), [LCC](src/map/lambertconic.cpp),
-  [Mercator](src/map/mercator.cpp), [Polar Stereographic](src/map/polarstereographic.cpp)
-  and [Transverse Mercator](src/map/transversemercator.cpp) projections - NIMA Source Code Disclaimer
+  [Mercator](src/map/mercator.cpp), [Polar Stereographic](src/map/polarstereographic.cpp),
+  [Polyconic](src/map/polyconic.cpp) and [Transverse Mercator](src/map/transversemercator.cpp)
+  projections - NIMA Source Code Disclaimer
 * [Projection parameters CSV files](pkg/csv) - BSD/EPSG/Public domain
--- a/gpxsee.pro
+++ b/gpxsee.pro
@ -3,19 +3,17 @@ unix:!macx {
 } else {
    TARGET = GPXSee
 }
-VERSION = 7.38
+VERSION = 8.2

 QT += core \
    gui \
+    gui-private \
    network \
    sql \
-    concurrent
-greaterThan(QT_MAJOR_VERSION, 4) {
-    QT += widgets
-    QT += printsupport
-}
-lessThan(QT_MAJOR_VERSION, 5) {QT += opengl}
-equals(QT_MAJOR_VERSION, 5) : lessThan(QT_MINOR_VERSION, 4) {QT += opengl}
+    concurrent \
+    widgets \
+    printsupport
+greaterThan(QT_MAJOR_VERSION, 5) {QT += openglwidgets}

 INCLUDEPATH += ./src
 HEADERS += src/common/config.h \
@ -27,10 +25,10 @@ HEADERS += src/common/config.h \
    src/GUI/planeitem.h \
    src/GUI/popup.h \
    src/common/garmin.h \
-    src/common/staticassert.h \
    src/common/coordinates.h \
    src/common/range.h \
    src/common/rectc.h \
+    src/common/textcodec.h \
    src/common/wgs84.h \
    src/common/util.h \
    src/common/rtree.h \
@ -58,7 +56,6 @@ HEADERS += src/common/config.h \
    src/GUI/heartrategraph.h \
    src/GUI/trackinfo.h \
    src/GUI/fileselectwidget.h \
-    src/GUI/margins.h \
    src/GUI/temperaturegraph.h \
    src/GUI/graphtab.h \
    src/GUI/trackitem.h \
@ -74,7 +71,6 @@ HEADERS += src/common/config.h \
    src/GUI/optionsdialog.h \
    src/GUI/colorbox.h \
    src/GUI/stylecombobox.h \
-    src/GUI/opengl.h \
    src/GUI/timetype.h \
    src/GUI/percentslider.h \
    src/GUI/elevationgraphitem.h \
@ -86,7 +82,6 @@ HEADERS += src/common/config.h \
    src/GUI/gearratiographitem.h \
    src/GUI/oddspinbox.h \
    src/GUI/settings.h \
-    src/GUI/cpuarch.h \
    src/GUI/searchpointer.h \
    src/GUI/mapview.h \
    src/GUI/font.h \
@ -107,6 +102,7 @@ HEADERS += src/common/config.h \
    src/map/IMG/textpointitem.h \
    src/map/bsbmap.h \
    src/map/invalidmap.h \
+    src/map/kmzmap.h \
    src/map/polyconic.h \
    src/map/projection.h \
    src/map/ellipsoid.h \
@ -208,7 +204,10 @@ HEADERS += src/common/config.h \
    src/data/address.h \
    src/data/smlparser.h \
    src/GUI/pdfexportdialog.h \
-    src/GUI/pngexportdialog.h
+    src/GUI/pngexportdialog.h \
+    src/data/geojsonparser.h \
+    src/GUI/timezoneinfo.h
+
 SOURCES += src/main.cpp \
    src/GUI/axislabelitem.cpp \
    src/GUI/mapitem.cpp \
@ -217,6 +216,7 @@ SOURCES += src/main.cpp \
    src/common/coordinates.cpp \
    src/common/rectc.cpp \
    src/common/range.cpp \
+    src/common/textcodec.cpp \
    src/common/util.cpp \
    src/common/greatcircle.cpp \
    src/common/programpaths.cpp \
@ -278,6 +278,7 @@ SOURCES += src/main.cpp \
    src/map/IMG/textpathitem.cpp \
    src/map/IMG/textpointitem.cpp \
    src/map/bsbmap.cpp \
+    src/map/kmzmap.cpp \
    src/map/maplist.cpp \
    src/map/onlinemap.cpp \
    src/map/downloader.cpp \
@ -362,19 +363,11 @@ SOURCES += src/main.cpp \
    src/data/gpiparser.cpp \
    src/data/smlparser.cpp \
    src/GUI/pdfexportdialog.cpp \
-    src/GUI/pngexportdialog.cpp
-
-greaterThan(QT_MAJOR_VERSION, 4) {
-    HEADERS += src/data/geojsonparser.h
-    SOURCES += src/data/geojsonparser.cpp
-}
-equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 4) {
-    HEADERS += src/GUI/timezoneinfo.h
-}
+    src/GUI/pngexportdialog.cpp \
+    src/data/geojsonparser.cpp

 DEFINES += APP_VERSION=\\\"$$VERSION\\\" \
    QT_NO_DEPRECATED_WARNINGS
-DEFINES *= QT_USE_QSTRINGBUILDER

 RESOURCES += gpxsee.qrc
 TRANSLATIONS = lang/gpxsee_en.ts \
@ -392,7 +385,8 @@ TRANSLATIONS = lang/gpxsee_en.ts \
    lang/gpxsee_pt_BR.ts \
    lang/gpxsee_uk.ts \
    lang/gpxsee_hu.ts \
-    lang/gpxsee_it.ts
+    lang/gpxsee_it.ts \
+    lang/gpxsee_eo.ts

 macx {
    ICON = icons/app/gpxsee.icns
@ -473,7 +467,6 @@ win32 {

 unix:!macx {
    isEmpty(PREFIX):PREFIX = /usr/local
-    DEFINES += PREFIX=\\\"$$PREFIX\\\"

    maps.files = pkg/maps/*
    maps.path = $$PREFIX/share/gpxsee/maps
--- a/icons/formats/cup.ico
+++ b/icons/formats/cup.ico
--- a/icons/formats/fit.ico
+++ b/icons/formats/fit.ico
--- a/icons/formats/gpi.ico
+++ b/icons/formats/gpi.ico
--- a/icons/formats/gpx.ico
+++ b/icons/formats/gpx.ico
--- a/icons/formats/igc.ico
+++ b/icons/formats/igc.ico
--- a/icons/formats/img.ico
+++ b/icons/formats/img.ico
--- a/icons/formats/jnx.ico
+++ b/icons/formats/jnx.ico
--- a/icons/formats/json.ico
+++ b/icons/formats/json.ico
--- a/icons/formats/kap.ico
+++ b/icons/formats/kap.ico
--- a/icons/formats/kml.ico
+++ b/icons/formats/kml.ico
--- a/icons/formats/loc.ico
+++ b/icons/formats/loc.ico
--- a/icons/formats/map.ico
+++ b/icons/formats/map.ico
--- a/icons/formats/mbts.ico
+++ b/icons/formats/mbts.ico
--- a/icons/formats/nmea.ico
+++ b/icons/formats/nmea.ico
--- a/icons/formats/plt.ico
+++ b/icons/formats/plt.ico
--- a/icons/formats/rmap.ico
+++ b/icons/formats/rmap.ico
--- a/icons/formats/rte.ico
+++ b/icons/formats/rte.ico
--- a/icons/formats/scripts/ico.sh
+++ b/icons/formats/scripts/ico.sh
@ -5,6 +5,6 @@ while read e; do

 	EXT=`echo $1 | tr /a-z/ /A-Z/`
 	sed -e "s/\$EXTENSION/$EXT/" -e "s/\$COLOR/$2/" icon-template.svg > $1.svg
-	convert -density 400 $1.svg -define icon:auto-resize $1.ico
+	convert -density 400 -background none $1.svg -define icon:auto-resize $1.ico
 	rm $1.svg
 done < extensions
--- a/icons/formats/slf.ico
+++ b/icons/formats/slf.ico
--- a/icons/formats/sml.ico
+++ b/icons/formats/sml.ico
--- a/icons/formats/tba.ico
+++ b/icons/formats/tba.ico
--- a/icons/formats/tcx.ico
+++ b/icons/formats/tcx.ico
--- a/icons/formats/wpt.ico
+++ b/icons/formats/wpt.ico
--- a/lang/gpxsee_cs.ts
+++ b/lang/gpxsee_cs.ts
--- a/lang/gpxsee_da.ts
+++ b/lang/gpxsee_da.ts
--- a/lang/gpxsee_de.ts
+++ b/lang/gpxsee_de.ts
--- a/lang/gpxsee_eo.ts
+++ b/lang/gpxsee_eo.ts
--- a/lang/gpxsee_es.ts
+++ b/lang/gpxsee_es.ts
--- a/lang/gpxsee_fi.ts
+++ b/lang/gpxsee_fi.ts
--- a/lang/gpxsee_fr.ts
+++ b/lang/gpxsee_fr.ts
--- a/lang/gpxsee_hu.ts
+++ b/lang/gpxsee_hu.ts
--- a/lang/gpxsee_it.ts
+++ b/lang/gpxsee_it.ts
--- a/lang/gpxsee_nb.ts
+++ b/lang/gpxsee_nb.ts
--- a/lang/gpxsee_pl.ts
+++ b/lang/gpxsee_pl.ts
--- a/lang/gpxsee_pt_BR.ts
+++ b/lang/gpxsee_pt_BR.ts
--- a/lang/gpxsee_ru.ts
+++ b/lang/gpxsee_ru.ts
--- a/lang/gpxsee_sv.ts
+++ b/lang/gpxsee_sv.ts
--- a/lang/gpxsee_tr.ts
+++ b/lang/gpxsee_tr.ts
--- a/lang/gpxsee_uk.ts
+++ b/lang/gpxsee_uk.ts
--- a/pkg/Info.plist
+++ b/pkg/Info.plist
@ -67,6 +67,22 @@
 			<key>CFBundleTypeRole</key>
 			<string>Viewer</string>
 		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>kmz</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.google-earth.kmz</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>icons/kml.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>KML geographic compressed data</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
 		<dict>
 			<key>CFBundleTypeExtensions</key>
 			<array>
@ -513,6 +529,27 @@
 				<string>application/vnd.google-earth.kml+xml</string>
 			</dict>
 		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>com.google.kmz</string>
+			<key>UTTypeReferenceURL</key>
+			<string>https://developers.google.com/kml/documentation/kmlreference</string>
+			<key>UTTypeDescription</key>
+			<string>KML geographic compressed data</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.archive</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>kmz</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.google-earth.kmz</string>
+			</dict>
+		</dict>
 		<dict>
 			<key>UTTypeIdentifier</key>
 			<string>com.geocaching.loc</string>
--- a/pkg/appdata.xml
+++ b/pkg/appdata.xml
@ -19,7 +19,7 @@
 				WMS, TMS, QuadTiles).</li>
 			<li>Offline maps (MBTiles, OziExplorer maps, TrekBuddy maps/atlases,
 				TwoNav RMaps, Garmin IMG &amp; JNX maps, GeoTIFF images,
-				BSB nautical charts).</li>
+				BSB nautical charts, KMZ maps).</li>
 			<li>Elevation, speed, heart rate, cadence, power, temperature and
 				gear ratio graphs.</li>
 			<li>Support for multiple tracks in one view.</li>
@ -33,10 +33,10 @@

 	<screenshots>
 		<screenshot type="default">
-			<image>http://www.gpxsee.org/gallery/lin1.png</image>
+			<image>https://www.gpxsee.org/gallery/linux.png</image>
 		</screenshot>
 		<screenshot>
-			<image>http://www.gpxsee.org/gallery/lin2.png</image>
+			<image>https://www.gpxsee.org/gallery/poi2.png</image>
 		</screenshot>
 	</screenshots>

@ -49,7 +49,7 @@
 		<category>DataVisualization</category>
 	</categories>

-	<url type="homepage">http://www.gpxsee.org</url>
+	<url type="homepage">https://www.gpxsee.org</url>

 	<launchable type="desktop-id">gpxsee.desktop</launchable>

@ -86,5 +86,6 @@
 		<mimetype>application/vnd.gpxsee.map+xml</mimetype>
 		<mimetype>application/x-tar</mimetype>
 		<mimetype>image/tiff</mimetype>
+		<mimetype>application/vnd.google-earth.kmz</mimetype>
 	</mimetypes>
 </component>
--- a/pkg/gpxsee.desktop
+++ b/pkg/gpxsee.desktop
@ -15,4 +15,4 @@ Icon=gpxsee
 Terminal=false
 Type=Application
 Categories=Graphics;Viewer;Education;Geography;Maps;Sports;Qt;
-MimeType=application/gpx+xml;application/vnd.garmin.tcx+xml;application/vnd.ant.fit;application/vnd.google-earth.kml+xml;application/vnd.fai.igc;application/vnd.nmea.nmea;application/vnd.oziexplorer.plt;application/vnd.oziexplorer.rte;application/vnd.oziexplorer.wpt;application/vnd.groundspeak.loc+xml;application/vnd.sigma.slf+xml;application/geo+json;application/vnd.naviter.seeyou.cup;application/vnd.garmin.gpi;application/vnd.suunto.sml+xml;image/jpeg;text/csv;application/vnd.garmin.img;application/vnd.garmin.jnx;application/vnd.garmin.gmap+xml;image/vnd.maptech.kap;application/vnd.oziexplorer.map;application/vnd.mapbox.mbtiles;application/vnd.twonav.rmap;application/vnd.trekbuddy.tba;application/vnd.gpxsee.map+xml;application/x-tar;image/tiff;
+MimeType=application/gpx+xml;application/vnd.garmin.tcx+xml;application/vnd.ant.fit;application/vnd.google-earth.kml+xml;application/vnd.fai.igc;application/vnd.nmea.nmea;application/vnd.oziexplorer.plt;application/vnd.oziexplorer.rte;application/vnd.oziexplorer.wpt;application/vnd.groundspeak.loc+xml;application/vnd.sigma.slf+xml;application/geo+json;application/vnd.naviter.seeyou.cup;application/vnd.garmin.gpi;application/vnd.suunto.sml+xml;image/jpeg;text/csv;application/vnd.garmin.img;application/vnd.garmin.jnx;application/vnd.garmin.gmap+xml;image/vnd.maptech.kap;application/vnd.oziexplorer.map;application/vnd.mapbox.mbtiles;application/vnd.twonav.rmap;application/vnd.trekbuddy.tba;application/vnd.gpxsee.map+xml;application/x-tar;image/tiff;application/vnd.google-earth.kmz;
--- a/pkg/gpxsee.nsi
+++ b/pkg/gpxsee.nsi
@ -7,7 +7,7 @@
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "7.38"
+!define VERSION "8.2"

 ; The file to write
 OutFile "GPXSee-${VERSION}.exe"
@ -109,14 +109,6 @@ Section "GPXSee" SEC_APP

  ; Associate file formats
  DetailPrint "Associating file types..."
-  !insertmacro FILE_ASSOCIATION_ADD "gpx" "GPS Exchange Format" 11
-  !insertmacro FILE_ASSOCIATION_ADD "tcx" "Training Center XML" 16
-  !insertmacro FILE_ASSOCIATION_ADD "kml" "Keyhole Markup Language" 17
-  !insertmacro FILE_ASSOCIATION_ADD "fit" "Flexible and Interoperable Data Transfer" 18
-  !insertmacro FILE_ASSOCIATION_ADD "igc" "Flight Recorder Data Format" 19
-  !insertmacro FILE_ASSOCIATION_ADD "nmea" "NMEA 0183 Data" 20
-  !insertmacro FILE_ASSOCIATION_ADD "plt" "OziExplorer Track Point File" 21
-  !insertmacro FILE_ASSOCIATION_ADD "rte" "OziExplorer Route File" 22
  !insertmacro FILE_ASSOCIATION_ADD "wpt" "OziExplorer Waypoint File" 1
  !insertmacro FILE_ASSOCIATION_ADD "loc" "Geocaching.com Waypoint File" 2
  !insertmacro FILE_ASSOCIATION_ADD "slf" "Sigma Log File" 3
@ -127,10 +119,19 @@ Section "GPXSee" SEC_APP
  !insertmacro FILE_ASSOCIATION_ADD "img" "Garmin IMG Map" 8
  !insertmacro FILE_ASSOCIATION_ADD "jnx" "Garmin JNX Map" 9
  !insertmacro FILE_ASSOCIATION_ADD "kap" "BSB Nautical Chart" 10
+  !insertmacro FILE_ASSOCIATION_ADD "gpx" "GPS Exchange Format" 11
  !insertmacro FILE_ASSOCIATION_ADD "map" "OziExplorer Map File" 12
  !insertmacro FILE_ASSOCIATION_ADD "mbtiles" "MBTiles Map File" 13
  !insertmacro FILE_ASSOCIATION_ADD "rmap" "TwoNav Raster Map File" 14
  !insertmacro FILE_ASSOCIATION_ADD "tba" "TrekBuddy Atlas" 15
+  !insertmacro FILE_ASSOCIATION_ADD "tcx" "Training Center XML" 16
+  !insertmacro FILE_ASSOCIATION_ADD "kml" "Keyhole Markup Language" 17
+  !insertmacro FILE_ASSOCIATION_ADD "kmz" "KML geographic compressed data" 17
+  !insertmacro FILE_ASSOCIATION_ADD "fit" "Flexible and Interoperable Data Transfer" 18
+  !insertmacro FILE_ASSOCIATION_ADD "igc" "Flight Recorder Data Format" 19
+  !insertmacro FILE_ASSOCIATION_ADD "nmea" "NMEA 0183 Data" 20
+  !insertmacro FILE_ASSOCIATION_ADD "plt" "OziExplorer Track Point File" 21
+  !insertmacro FILE_ASSOCIATION_ADD "rte" "OziExplorer Route File" 22

  WriteRegStr HKCR "Applications\GPXSee.exe\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
  WriteRegStr HKCR ".gpx\OpenWithList" "GPXSee.exe" ""
@ -163,7 +164,8 @@ Section "GPXSee" SEC_APP
  WriteRegStr HKCR ".tba\OpenWithList" "GPXSee.exe" ""
  WriteRegStr HKCR ".tif\OpenWithList" "GPXSee.exe" ""
  WriteRegStr HKCR ".tiff\OpenWithList" "GPXSee.exe" ""
-  WriteRegStr HKCR ".xml\OpenWithList" "GPXSee.exe" ""  
+  WriteRegStr HKCR ".xml\OpenWithList" "GPXSee.exe" ""
+  WriteRegStr HKCR ".kmz\OpenWithList" "GPXSee.exe" ""
  
  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'

@ -217,6 +219,7 @@ SectionEnd
 SectionGroup "Localization" SEC_LOCALIZATION
  !insertmacro LOCALIZATION "Czech" "cs"
  !insertmacro LOCALIZATION "Danish" "da"
+  !insertmacro LOCALIZATION "Esperanto" "eo"
  !insertmacro LOCALIZATION "Finnish" "fi"
  !insertmacro LOCALIZATION "French" "fr"
  !insertmacro LOCALIZATION "German" "de"
@ -274,6 +277,7 @@ Section "Uninstall"
  !insertmacro FILE_ASSOCIATION_REMOVE "mbtiles"
  !insertmacro FILE_ASSOCIATION_REMOVE "rmap"
  !insertmacro FILE_ASSOCIATION_REMOVE "tba"
+  !insertmacro FILE_ASSOCIATION_REMOVE "kmz"

  DeleteRegValue HKCR ".gpx\OpenWithList" "GPXSee.exe"
  DeleteRegValue HKCR ".tcx\OpenWithList" "GPXSee.exe"
@ -306,6 +310,7 @@ Section "Uninstall"
  DeleteRegValue HKCR ".tif\OpenWithList" "GPXSee.exe"
  DeleteRegValue HKCR ".tiff\OpenWithList" "GPXSee.exe"
  DeleteRegValue HKCR ".xml\OpenWithList" "GPXSee.exe"
+  DeleteRegValue HKCR ".kmz\OpenWithList" "GPXSee.exe"
  DeleteRegKey HKCR "Applications\GPXSee.exe"
  
  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
@ -338,4 +343,4 @@ LangString DESC_LOCALIZATION ${LANG_ENGLISH} \
  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_LOCALIZATION} $(DESC_LOCALIZATION)
-!insertmacro MUI_FUNCTION_DESCRIPTION_END
+!insertmacro MUI_FUNCTION_DESCRIPTION_END
--- a/pkg/gpxsee.xml
+++ b/pkg/gpxsee.xml
@ -213,4 +213,11 @@
 		<glob pattern="*.xml"/>
 	</mime-type>

+	<mime-type type="application/vnd.google-earth.kmz">
+		<comment>KML geographic compressed data</comment>
+		<sub-class-of type="application/zip"/>
+		<generic-icon name="application/zip"/>
+		<glob pattern="*.kmz"/>
+	</mime-type>
+
 </mime-info>
--- a/pkg/gpxsee64.nsi
+++ b/pkg/gpxsee64.nsi
@ -7,7 +7,7 @@
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "7.38"
+!define VERSION "8.2"

 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"
@ -116,14 +116,6 @@ Section "GPXSee" SEC_APP

  ; Associate file formats
  DetailPrint "Associating file types..."
-  !insertmacro FILE_ASSOCIATION_ADD "gpx" "GPS Exchange Format" 11
-  !insertmacro FILE_ASSOCIATION_ADD "tcx" "Training Center XML" 16
-  !insertmacro FILE_ASSOCIATION_ADD "kml" "Keyhole Markup Language" 17
-  !insertmacro FILE_ASSOCIATION_ADD "fit" "Flexible and Interoperable Data Transfer" 18
-  !insertmacro FILE_ASSOCIATION_ADD "igc" "Flight Recorder Data Format" 19
-  !insertmacro FILE_ASSOCIATION_ADD "nmea" "NMEA 0183 Data" 20
-  !insertmacro FILE_ASSOCIATION_ADD "plt" "OziExplorer Track Point File" 21
-  !insertmacro FILE_ASSOCIATION_ADD "rte" "OziExplorer Route File" 22
  !insertmacro FILE_ASSOCIATION_ADD "wpt" "OziExplorer Waypoint File" 1
  !insertmacro FILE_ASSOCIATION_ADD "loc" "Geocaching.com Waypoint File" 2
  !insertmacro FILE_ASSOCIATION_ADD "slf" "Sigma Log File" 3
@ -134,10 +126,19 @@ Section "GPXSee" SEC_APP
  !insertmacro FILE_ASSOCIATION_ADD "img" "Garmin IMG Map" 8
  !insertmacro FILE_ASSOCIATION_ADD "jnx" "Garmin JNX Map" 9
  !insertmacro FILE_ASSOCIATION_ADD "kap" "BSB Nautical Chart" 10
+  !insertmacro FILE_ASSOCIATION_ADD "gpx" "GPS Exchange Format" 11
  !insertmacro FILE_ASSOCIATION_ADD "map" "OziExplorer Map File" 12
  !insertmacro FILE_ASSOCIATION_ADD "mbtiles" "MBTiles Map File" 13
  !insertmacro FILE_ASSOCIATION_ADD "rmap" "TwoNav Raster Map File" 14
-  !insertmacro FILE_ASSOCIATION_ADD "tba" "TrekBuddy Atlas" 15  
+  !insertmacro FILE_ASSOCIATION_ADD "tba" "TrekBuddy Atlas" 15
+  !insertmacro FILE_ASSOCIATION_ADD "tcx" "Training Center XML" 16
+  !insertmacro FILE_ASSOCIATION_ADD "kml" "Keyhole Markup Language" 17
+  !insertmacro FILE_ASSOCIATION_ADD "kmz" "KML geographic compressed data" 17
+  !insertmacro FILE_ASSOCIATION_ADD "fit" "Flexible and Interoperable Data Transfer" 18
+  !insertmacro FILE_ASSOCIATION_ADD "igc" "Flight Recorder Data Format" 19
+  !insertmacro FILE_ASSOCIATION_ADD "nmea" "NMEA 0183 Data" 20
+  !insertmacro FILE_ASSOCIATION_ADD "plt" "OziExplorer Track Point File" 21
+  !insertmacro FILE_ASSOCIATION_ADD "rte" "OziExplorer Route File" 22

  WriteRegStr HKCR "Applications\GPXSee.exe\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
  WriteRegStr HKCR ".gpx\OpenWithList" "GPXSee.exe" ""
@ -171,6 +172,7 @@ Section "GPXSee" SEC_APP
  WriteRegStr HKCR ".tif\OpenWithList" "GPXSee.exe" ""
  WriteRegStr HKCR ".tiff\OpenWithList" "GPXSee.exe" ""
  WriteRegStr HKCR ".xml\OpenWithList" "GPXSee.exe" ""
+  WriteRegStr HKCR ".kmz\OpenWithList" "GPXSee.exe" ""

  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'

@ -180,6 +182,17 @@ Section "QT framework" SEC_QT

  SectionIn RO

+!ifdef QT6
+  File "Qt6Concurrent.dll"
+  File "Qt6Core.dll"
+  File "Qt6Gui.dll"
+  File "Qt6Network.dll"
+  File "Qt6OpenGL.dll"
+  File "Qt6OpenGLWidgets.dll"
+  File "Qt6PrintSupport.dll"
+  File "Qt6Sql.dll"
+  File "Qt6Widgets.dll"
+!else
  File "Qt5Core.dll"
  File "Qt5Gui.dll"
  File "Qt5Widgets.dll"
@ -187,9 +200,10 @@ Section "QT framework" SEC_QT
  File "Qt5Network.dll"
  File "Qt5Sql.dll"
  File "Qt5Concurrent.dll"
+  File /r "printsupport"
+!endif
  File /r "platforms"
  File /r "imageformats"
-  File /r "printsupport"
  File /r "styles"
  File /r "sqldrivers"

@ -213,6 +227,7 @@ Section "OpenSSL" SEC_OPENSSL

 SectionEnd

+!ifndef QT6
 Section "ANGLE" SEC_ANGLE

  File "libGLESv2.dll"
@ -220,10 +235,12 @@ Section "ANGLE" SEC_ANGLE
  File "D3DCompiler_47.dll"

 SectionEnd
+!endif

 SectionGroup "Localization" SEC_LOCALIZATION
  !insertmacro LOCALIZATION "Czech" "cs"
  !insertmacro LOCALIZATION "Danish" "da"
+  !insertmacro LOCALIZATION "Esperanto" "eo"
  !insertmacro LOCALIZATION "Finnish" "fi"
  !insertmacro LOCALIZATION "French" "fr"
  !insertmacro LOCALIZATION "German" "de"
@ -282,6 +299,7 @@ Section "Uninstall"
  !insertmacro FILE_ASSOCIATION_REMOVE "mbtiles"
  !insertmacro FILE_ASSOCIATION_REMOVE "rmap"
  !insertmacro FILE_ASSOCIATION_REMOVE "tba"
+  !insertmacro FILE_ASSOCIATION_REMOVE "kmz"

  DeleteRegValue HKCR ".gpx\OpenWithList" "GPXSee.exe"
  DeleteRegValue HKCR ".tcx\OpenWithList" "GPXSee.exe"
@ -314,6 +332,7 @@ Section "Uninstall"
  DeleteRegValue HKCR ".tif\OpenWithList" "GPXSee.exe"
  DeleteRegValue HKCR ".tiff\OpenWithList" "GPXSee.exe"
  DeleteRegValue HKCR ".xml\OpenWithList" "GPXSee.exe"
+  DeleteRegValue HKCR ".kmz\OpenWithList" "GPXSee.exe"
  DeleteRegKey HKCR "Applications\GPXSee.exe"   
  
  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
--- a/src/GUI/app.cpp
+++ b/src/GUI/app.cpp
@ -6,6 +6,7 @@
 #include <QNetworkAccessManager>
 #include <QLibraryInfo>
 #include <QSettings>
+#include <QSurfaceFormat>
 #include "common/programpaths.h"
 #include "common/config.h"
 #include "map/downloader.h"
@ -13,7 +14,6 @@
 #include "map/gcs.h"
 #include "map/pcs.h"
 #include "data/dem.h"
-#include "opengl.h"
 #include "gui.h"
 #include "settings.h"
 #include "mapaction.h"
@ -30,18 +30,18 @@ App::App(int &argc, char **argv) : QApplication(argc, argv)
 	setApplicationVersion(APP_VERSION);

 	QTranslator *gpxsee = new QTranslator(this);
-	gpxsee->load(QLocale::system(), "gpxsee", "_",
-	  ProgramPaths::translationsDir());
-	installTranslator(gpxsee);
+	if (gpxsee->load(QLocale::system(), "gpxsee", "_",
+	  ProgramPaths::translationsDir()))
+		installTranslator(gpxsee);

 	QTranslator *qt = new QTranslator(this);
 #if defined(Q_OS_WIN32) || defined(Q_OS_MAC)
-	qt->load(QLocale::system(), "qt", "_", ProgramPaths::translationsDir());
+	if (qt->load(QLocale::system(), "qt", "_", ProgramPaths::translationsDir()))
 #else // Q_OS_WIN32 || Q_OS_MAC
-	qt->load(QLocale::system(), "qt", "_", QLibraryInfo::location(
-	  QLibraryInfo::TranslationsPath));
+	if (qt->load(QLocale::system(), "qt", "_", QLibraryInfo::location(
+	  QLibraryInfo::TranslationsPath)))
 #endif // Q_OS_WIN32 || Q_OS_MAC
-	installTranslator(qt);
+		installTranslator(qt);

 #ifdef Q_OS_MAC
 	setAttribute(Qt::AA_DontShowIconsInMenus);
@ -52,17 +52,18 @@ App::App(int &argc, char **argv) : QApplication(argc, argv)
 	   "QThreadStorage: Thread X exited after QThreadStorage Y destroyed" */
 	Downloader::setNetworkManager(new QNetworkAccessManager(this));
 	DEM::setDir(ProgramPaths::demDir());
-	OPENGL_SET_FORMAT(4, 8);
+	QSurfaceFormat fmt;
+	fmt.setStencilBufferSize(8);
+	fmt.setSamples(4);
+	QSurfaceFormat::setDefaultFormat(fmt);

 	loadDatums();
 	loadPCSs();

 	QSettings settings(qApp->applicationName(), qApp->applicationName());
 	settings.beginGroup(OPTIONS_SETTINGS_GROUP);
-#ifdef ENABLE_HTTP2
 	Downloader::enableHTTP2(settings.value(ENABLE_HTTP2_SETTING,
 	  ENABLE_HTTP2_DEFAULT).toBool());
-#endif // ENABLE_HTTP2
 	Downloader::setTimeout(settings.value(CONNECTION_TIMEOUT_SETTING,
 	  CONNECTION_TIMEOUT_DEFAULT).toInt());
 	settings.endGroup();
--- a/src/GUI/axisitem.cpp
+++ b/src/GUI/axisitem.cpp
@ -29,8 +29,8 @@ private:

 Ticks::Ticks(double minValue, double maxValue, int maxCount)
 {
-	double range = niceNum(maxValue - minValue, false);
-	_d = niceNum(range / maxCount, false);
+	double range = Util::niceNum(maxValue - minValue, false);
+	_d = Util::niceNum(range / maxCount, false);
 	_min = ceil(minValue / _d) * _d;
 	_max = floor(maxValue / _d) * _d;
 }
--- a/src/GUI/colorbox.cpp
+++ b/src/GUI/colorbox.cpp
@ -55,7 +55,8 @@ void ColorBox::mousePressEvent(QMouseEvent *event)
 	if (event->button() != Qt::LeftButton)
 		return;
 	QColorDialog::ColorDialogOptions options = _alpha
-	  ? QColorDialog::ShowAlphaChannel : (QColorDialog::ColorDialogOptions)0;
+	  ? QColorDialog::ColorDialogOptions(QColorDialog::ShowAlphaChannel)
+	  : QColorDialog::ColorDialogOptions();
 	QColor color = QColorDialog::getColor(_color, this, QString(), options);
 	if (color.isValid()) {
 		_color = color;
--- a/src/GUI/cpuarch.h
+++ b/src/GUI/cpuarch.h
@ -1,42 +0,0 @@
-#ifndef CPUARCH_H
-#define CPUARCH_H
-
-#include <QtGlobal>
-
-#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
-
-#if defined(__arm64__)
-	#define CPU_ARCH_STR "arm64"
-#elif defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_M_ARM)
-	#define CPU_ARCH_STR "arm"
-#elif defined(__x86_64) || defined(__x86_64__) || defined(__amd64) \
- || defined(_M_X64)
-	#define CPU_ARCH_STR "x86_64"
-#elif defined(__i386) || defined(__i386__) || defined(_M_IX86)
-	#define CPU_ARCH_STR "i386"
-#elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
-	#define CPU_ARCH_STR "ia64"
-#elif defined(_MIPS_ARCH_MIPS64) || defined(__mips64)
-	#define CPU_ARCH_STR "mips64"
-#elif defined(__mips) || defined(__mips__) || defined(_M_MRX000)
-	#define CPU_ARCH_STR "mips"
-#elif defined(__ppc64__) || defined(__powerpc64__) || defined(__64BIT__)
-	#define CPU_ARCH_STR "power64"
-#elif defined(__ppc__) || defined(__ppc) || defined(__powerpc__) \
-  || defined(_ARCH_COM) || defined(_ARCH_PWR) || defined(_ARCH_PPC)  \
-  || defined(_M_MPPC) || defined(_M_PPC)
-	#define CPU_ARCH_STR "power"
-#else
-	#define CPU_ARCH_STR "unknown"
-#endif
-
-#define CPU_ARCH QString(CPU_ARCH_STR)
-
-#else // QT_VERSION < 5.4
-
-#include <QSysInfo>
-#define CPU_ARCH QSysInfo::buildCpuArchitecture()
-
-#endif // QT_VERSION < 5.4
-
-#endif // CPUARCH_H
--- a/src/GUI/fileselectwidget.cpp
+++ b/src/GUI/fileselectwidget.cpp
@ -24,7 +24,7 @@ FileSelectWidget::FileSelectWidget(QWidget *parent) : QWidget(parent)
 	connect(_button, SIGNAL(clicked()), this, SLOT(browse()));

 	QHBoxLayout *layout = new QHBoxLayout();
-	layout->setMargin(0);
+	layout->setContentsMargins(QMargins());
 	layout->addWidget(_edit);
 	layout->addWidget(_button);
 	setLayout(layout);
--- a/src/GUI/graphitem.cpp
+++ b/src/GUI/graphitem.cpp
@ -85,7 +85,7 @@ const GraphSegment *GraphItem::segment(qreal x, GraphType type) const
 	return 0;
 }

-qreal GraphItem::yAtX(qreal x)
+qreal GraphItem::yAtX(qreal x) const
 {
 	const GraphSegment *seg = segment(x, _type);
 	if (!seg)
@ -106,7 +106,7 @@ qreal GraphItem::yAtX(qreal x)
 		else if (p.x(_type) < x)
 			low = mid + 1;
 		else
-			return -p.y();
+			return p.y();
 	}

 	QLineF l;
@ -117,11 +117,14 @@ qreal GraphItem::yAtX(qreal x)
 		l = QLineF(seg->at(mid-1).x(_type), seg->at(mid-1).y(),
 		  seg->at(mid).x(_type), seg->at(mid).y());

-	return -l.pointAt((x - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
+	return l.pointAt((x - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
 }

-qreal GraphItem::distanceAtTime(qreal time)
+qreal GraphItem::distanceAtTime(qreal time) const
 {
+	if (!_time)
+		return NAN;
+
 	const GraphSegment *seg = segment(time, Time);
 	if (!seg)
 		return NAN;
@ -155,12 +158,42 @@ qreal GraphItem::distanceAtTime(qreal time)
 	return l.pointAt((time - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
 }

-void GraphItem::emitSliderPositionChanged(qreal pos)
+qreal GraphItem::timeAtDistance(qreal distance) const
 {
-	if (_type == Time)
-		emit sliderPositionChanged(_time ? distanceAtTime(pos) : NAN);
+	if (!_time)
+		return NAN;
+
+	const GraphSegment *seg = segment(distance, Distance);
+	if (!seg)
+		return NAN;
+
+	int low = 0;
+	int high = seg->count() - 1;
+	int mid = 0;
+
+	if (!(distance >= seg->at(low).s() && distance <= seg->at(high).s()))
+		return NAN;
+
+	while (low <= high) {
+		mid = low + ((high - low) / 2);
+		const GraphPoint &p = seg->at(mid);
+		if (p.s() > distance)
+			high = mid - 1;
+		else if (p.s() < distance)
+			low = mid + 1;
+		else
+			return seg->at(mid).t();
+	}
+
+	QLineF l;
+	if (seg->at(mid).s() < distance)
+		l = QLineF(seg->at(mid).s(), seg->at(mid).t(), seg->at(mid+1).s(),
+		  seg->at(mid+1).t());
 	else
-		emit sliderPositionChanged(pos);
+		l = QLineF(seg->at(mid-1).s(), seg->at(mid-1).t(),
+		  seg->at(mid).s(), seg->at(mid).t());
+
+	return l.pointAt((distance - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
 }

 void GraphItem::hover(bool hover)
--- a/src/GUI/graphitem.h
+++ b/src/GUI/graphitem.h
@ -23,6 +23,7 @@ public:
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);

+	GraphType graphType() const {return _type;}
 	const QRectF &bounds() const {return _bounds;}

 	qreal max() const;
@ -38,17 +39,16 @@ public:
 	GraphItem *secondaryGraph() const {return _secondaryGraph;}
 	void setSecondaryGraph(GraphItem *graph) {_secondaryGraph = graph;}

-	qreal yAtX(qreal x);
-	qreal distanceAtTime(qreal time);
+	qreal yAtX(qreal x) const;
+	qreal distanceAtTime(qreal time) const;
+	qreal timeAtDistance(qreal distance) const;

 	void redraw();

 signals:
-	void sliderPositionChanged(qreal);
 	void selected(bool);

 public slots:
-	void emitSliderPositionChanged(qreal);
 	void hover(bool hover);

 protected:
--- a/src/GUI/graphtab.h
+++ b/src/GUI/graphtab.h
@ -1,6 +1,7 @@
 #ifndef GRAPHTAB_H
 #define GRAPHTAB_H

+#include <QtGlobal>
 #include <QList>
 #include "graphview.h"
 #include "units.h"
@ -14,7 +15,12 @@ class GraphTab : public GraphView
 	Q_OBJECT

 public:
-	GraphTab(QWidget *parent = 0) : GraphView(parent) {}
+	GraphTab(QWidget *parent = 0) : GraphView(parent)
+	{
+#if defined(Q_OS_WIN32) || defined(Q_OS_MAC)
+		setFrameShape(QFrame::NoFrame);
+#endif // Q_OS_WIN32 || Q_OS_MAC
+	}
 	virtual ~GraphTab() {}

 	virtual QString label() const = 0;
--- a/src/GUI/graphview.cpp
+++ b/src/GUI/graphview.cpp
@ -6,8 +6,8 @@
 #include <QGraphicsSimpleTextItem>
 #include <QPalette>
 #include <QLocale>
+#include <QOpenGLWidget>
 #include "data/graph.h"
-#include "opengl.h"
 #include "axisitem.h"
 #include "axislabelitem.h"
 #include "slideritem.h"
@ -179,6 +179,13 @@ void GraphView::setGraphType(GraphType type)
 		_xLabel = tr("Time");
 	setXUnits();

+	if (singleGraph())
+		_sliderPos = (type == Distance)
+		  ? _graphs.first()->distanceAtTime(_sliderPos)
+		  : _graphs.first()->timeAtDistance(_sliderPos);
+	else
+		_sliderPos = 0;
+
 	redraw();
 }

@ -194,9 +201,6 @@ void GraphView::showSliderInfo(bool show)

 void GraphView::addGraph(GraphItem *graph)
 {
-	connect(this, SIGNAL(sliderPositionChanged(qreal)), graph,
-	  SLOT(emitSliderPositionChanged(qreal)));
-
 	_graphs.append(graph);
 	if (!graph->bounds().isNull())
 		_scene->addItem(graph);
@ -207,9 +211,6 @@ void GraphView::addGraph(GraphItem *graph)

 void GraphView::removeGraph(GraphItem *graph)
 {
-	disconnect(this, SIGNAL(sliderPositionChanged(qreal)), graph,
-	  SLOT(emitSliderPositionChanged(qreal)));
-
 	_graphs.removeOne(graph);
 	_scene->removeItem(graph);

@ -351,23 +352,31 @@ void GraphView::wheelEvent(QWheelEvent *e)
 {
 	static int deg = 0;

-	deg += e->delta() / 8;
+	deg += e->angleDelta().y() / 8;
 	if (qAbs(deg) < 15)
 		return;
 	deg = 0;

+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
 	QPointF pos = mapToScene(e->pos());
+#else // QT 5.15
+	QPointF pos = mapToScene(e->position().toPoint());
+#endif // QT 5.15
 	QRectF gr(_grid->boundingRect());
 	QPointF r(pos.x() / gr.width(), pos.y() / gr.height());

-	_zoom = (e->delta() > 0) ? _zoom * 1.25 : qMax(_zoom / 1.25, 1.0);
+	_zoom = (e->angleDelta().y() > 0) ? _zoom * 1.25 : qMax(_zoom / 1.25, 1.0);
 	redraw();

 	QRectF ngr(_grid->boundingRect());
 	QPointF npos(mapFromScene(QPointF(r.x() * ngr.width(),
 	  r.y() * ngr.height())));
 	QScrollBar *sb = horizontalScrollBar();
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
 	sb->setSliderPosition(sb->sliderPosition() + npos.x() - e->pos().x());
+#else // QT 5.15
+	sb->setSliderPosition(sb->sliderPosition() + npos.x() - e->position().x());
+#endif // QT 5.15

 	QGraphicsView::wheelEvent(e);
 }
@ -426,12 +435,17 @@ void GraphView::updateSliderPosition()
 	}
 }

+bool GraphView::singleGraph() const
+{
+	return (_graphs.count() == 1
+	  || (_graphs.count() == 2 && _graphs.first()->secondaryGraph()));
+}
+
 void GraphView::updateSliderInfo()
 {
 	QLocale l(QLocale::system());
 	qreal r = 0, y = 0;
-	GraphItem *cardinal = (_graphs.count() == 1 || (_graphs.count() == 2
-	  && _graphs.first()->secondaryGraph())) ? _graphs.first() : 0;
+	GraphItem *cardinal = singleGraph() ? _graphs.first() : 0;

 	if (cardinal) {
 		QRectF br(_bounds);
@ -439,7 +453,7 @@ void GraphView::updateSliderInfo()
 			br.adjust(0, -(_minYRange/2 - br.height()/2), 0,
 			  _minYRange/2 - br.height()/2);

-		y = cardinal->yAtX(_sliderPos);
+		y = -cardinal->yAtX(_sliderPos);
 		r = (y - br.bottom()) / br.height();
 	}

@ -455,9 +469,9 @@ void GraphView::updateSliderInfo()
 	QString yText((!cardinal) ? QString() : l.toString(-y * _yScale + _yOffset,
 	  'f', _precision) + UNIT_SPACE + _yUnits);
 	if (cardinal && cardinal->secondaryGraph()) {
-		qreal delta = y - cardinal->secondaryGraph()->yAtX(_sliderPos);
-		yText += " " + QChar(0x0394) + l.toString(-delta * _yScale + _yOffset,
-		  'f', _precision) + UNIT_SPACE + _yUnits;
+		qreal delta = y + cardinal->secondaryGraph()->yAtX(_sliderPos);
+		yText += QString(" ") + QChar(0x0394) + l.toString(-delta * _yScale
+		  + _yOffset, 'f', _precision) + UNIT_SPACE + _yUnits;
 	}
 	_sliderInfo->setText(xText, yText);
 }
@ -537,7 +551,7 @@ void GraphView::setGraphWidth(int width)
 void GraphView::useOpenGL(bool use)
 {
 	if (use)
-		setViewport(new OPENGL_WIDGET);
+		setViewport(new QOpenGLWidget);
 	else
 		setViewport(new QWidget);
 }
--- a/src/GUI/graphview.h
+++ b/src/GUI/graphview.h
@ -43,6 +43,8 @@ public:
 	void setSliderPosition(qreal pos);
 	void setSliderColor(const QColor &color);

+	qreal sliderPosition() const {return _sliderPos;}
+
 signals:
 	void sliderPositionChanged(qreal);

@ -91,6 +93,7 @@ private:
 	void updateSliderInfo();
 	void removeItem(QGraphicsItem *item);
 	void addItem(QGraphicsItem *item);
+	bool singleGraph() const;

 	GraphicsScene *_scene;

--- a/src/GUI/gui.cpp
+++ b/src/GUI/gui.cpp
@ -1,4 +1,3 @@
-#include "common/config.h"
 #include <QApplication>
 #include <QSplitter>
 #include <QVBoxLayout>
@ -23,10 +22,8 @@
 #include <QMimeData>
 #include <QUrl>
 #include <QPixmapCache>
-#ifdef ENABLE_HIDPI
 #include <QWindow>
 #include <QScreen>
-#endif // ENABLE_HIDPI
 #include <QStyle>
 #include "common/programpaths.h"
 #include "data/data.h"
@ -47,7 +44,6 @@
 #include "mapview.h"
 #include "trackinfo.h"
 #include "filebrowser.h"
-#include "cpuarch.h"
 #include "graphtab.h"
 #include "graphitem.h"
 #include "pathitem.h"
@ -94,8 +90,7 @@ GUI::GUI()
 	_routeDistance = 0;
 	_time = 0;
 	_movingTime = 0;
-
-	_sliderPos = 0;
+	_lastGraphTab = 0;

 	_dataDir = QDir::homePath();
 	_mapDir = QDir::homePath();
@ -174,8 +169,13 @@ void GUI::mapInitialized()
 void GUI::createPOIFilesActions()
 {
 	_poiFilesSignalMapper = new QSignalMapper(this);
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
 	connect(_poiFilesSignalMapper, SIGNAL(mapped(int)), this,
 	  SLOT(poiFileChecked(int)));
+#else // QT 5.15
+	connect(_poiFilesSignalMapper, SIGNAL(mappedInt(int)), this,
+	  SLOT(poiFileChecked(int)));
+#endif // QT 5.15

 	for (int i = 0; i < _poi->files().count(); i++)
 		createPOIFileAction(_poi->files().at(i));
@ -283,7 +283,7 @@ void GUI::createActions()
 	_overlapPOIAction->setMenuRole(QAction::NoRole);
 	_overlapPOIAction->setCheckable(true);
 	connect(_overlapPOIAction, SIGNAL(triggered(bool)), _mapView,
-	  SLOT(setPOIOverlap(bool)));
+	  SLOT(showOverlappedPOIs(bool)));
 	_showPOILabelsAction = new QAction(tr("Show POI labels"), this);
 	_showPOILabelsAction->setMenuRole(QAction::NoRole);
 	_showPOILabelsAction->setCheckable(true);
@ -374,6 +374,11 @@ void GUI::createActions()
 	_showTicksAction->setCheckable(true);
 	connect(_showTicksAction, SIGNAL(triggered(bool)), _mapView,
 	  SLOT(showTicks(bool)));
+	_showMarkersAction = new QAction(tr("Position markers"), this);
+	_showMarkersAction->setMenuRole(QAction::NoRole);
+	_showMarkersAction->setCheckable(true);
+	connect(_showMarkersAction, SIGNAL(triggered(bool)), _mapView,
+	  SLOT(showMarkers(bool)));

 	// Graph actions
 	_showGraphsAction = new QAction(QIcon(SHOW_GRAPHS_ICON), tr("Show graphs"),
@ -410,11 +415,6 @@ void GUI::createActions()
 	_showGraphSliderInfoAction->setCheckable(true);
 	connect(_showGraphSliderInfoAction, SIGNAL(triggered(bool)), this,
 	  SLOT(showGraphSliderInfo(bool)));
-	_showMarkersAction = new QAction(tr("Show path markers"), this);
-	_showMarkersAction->setMenuRole(QAction::NoRole);
-	_showMarkersAction->setCheckable(true);
-	connect(_showMarkersAction, SIGNAL(triggered(bool)), _mapView,
-	  SLOT(showMarkers(bool)));

 	// Settings actions
 	_showToolbarsAction = new QAction(tr("Show toolbars"), this);
@ -543,7 +543,6 @@ void GUI::createMenus()
 	graphMenu->addSeparator();
 	graphMenu->addAction(_showGraphGridAction);
 	graphMenu->addAction(_showGraphSliderInfoAction);
-	graphMenu->addAction(_showMarkersAction);
 	graphMenu->addSeparator();
 	graphMenu->addAction(_showGraphsAction);

@ -564,6 +563,7 @@ void GUI::createMenus()
 	displayMenu->addAction(_showWaypointLabelsAction);
 	displayMenu->addAction(_showRouteWaypointsAction);
 	displayMenu->addAction(_showTicksAction);
+	displayMenu->addAction(_showMarkersAction);
 	dataMenu->addSeparator();
 	dataMenu->addAction(_showTracksAction);
 	dataMenu->addAction(_showRoutesAction);
@ -661,13 +661,8 @@ void GUI::createGraphTabs()
 	_tabs.append(new TemperatureGraph(_graphTabWidget));
 	_tabs.append(new GearRatioGraph(_graphTabWidget));

-	for (int i = 0; i < _tabs.count(); i++) {
-#if defined(Q_OS_WIN32) || defined(Q_OS_MAC)
-		_tabs.at(i)->setFrameShape(QFrame::NoFrame);
-#endif // Q_OS_WIN32 || Q_OS_MAC
-		connect(_tabs.at(i), SIGNAL(sliderPositionChanged(qreal)), this,
-		  SLOT(sliderPositionChanged(qreal)));
-	}
+	connect(_tabs.first(), SIGNAL(sliderPositionChanged(qreal)), _mapView,
+	  SLOT(setMarkerPosition(qreal)));
 }

 void GUI::createStatusBar()
@ -691,8 +686,8 @@ void GUI::about()

 	msgBox.setWindowTitle(tr("About GPXSee"));
 	msgBox.setText("<h2>" + QString(APP_NAME) + "</h2><p><p>" + tr("Version %1")
-	  .arg(QString(APP_VERSION) + " (" + CPU_ARCH + ", Qt " + QT_VERSION_STR
-	  + ")") + "</p>");
+	  .arg(QString(APP_VERSION) + " (" + QSysInfo::buildCpuArchitecture()
+	  + ", Qt " + QT_VERSION_STR + ")") + "</p>");
 	msgBox.setInformativeText("<table width=\"300\"><tr><td>"
 	  + tr("GPXSee is distributed under the terms of the GNU General Public "
 	  "License version 3. For more info about GPXSee visit the project "
@ -835,12 +830,7 @@ void GUI::loadData(const Data &data)
 		_trackDistance += track.distance();
 		_time += track.time();
 		_movingTime += track.movingTime();
-#ifdef ENABLE_TIMEZONES
-		const QDateTime date = track.date().toTimeZone(
-		            _options.timeZone.zone());
-#else // ENABLE_TIMEZONES
-		const QDateTime &date = track.date();
-#endif // ENABLE_TIMEZONES
+		const QDateTime date = track.date().toTimeZone(_options.timeZone.zone());
 		if (_dateRange.first.isNull() || _dateRange.first > date)
 			_dateRange.first = date;
 		if (_dateRange.second.isNull() || _dateRange.second < date)
@ -869,17 +859,17 @@ void GUI::loadData(const Data &data)
 		_splitter->refresh();
 	paths = _mapView->loadData(data);

+	GraphTab *gt = static_cast<GraphTab*>(_graphTabWidget->currentWidget());
+	int index = _graphTabWidget->currentIndex();
+
 	for (int i = 0; i < paths.count(); i++) {
-		const PathItem *pi = paths.at(i);
-		for (int j = 0; j < graphs.count(); j++) {
-			const GraphItem *gi = graphs.at(j).at(i);
-			if (!gi)
-				continue;
-			connect(gi, SIGNAL(sliderPositionChanged(qreal)), pi,
-			        SLOT(moveMarker(qreal)));
-			connect(pi, SIGNAL(selected(bool)), gi, SLOT(hover(bool)));
-			connect(gi, SIGNAL(selected(bool)), pi, SLOT(hover(bool)));
-		}
+		PathItem *pi = paths.at(i);
+
+		for (int j = 0; j < graphs.count(); j++)
+			pi->addGraph(graphs.at(j).at(i));
+
+		pi->setGraph(index);
+		pi->setMarkerPosition(gt->sliderPosition());
 	}
 }

@ -977,7 +967,8 @@ void GUI::openOptions()
 	SET_VIEW_OPTION(pathAntiAliasing, useAntiAliasing);
 	SET_VIEW_OPTION(useOpenGL, useOpenGL);
 	SET_VIEW_OPTION(sliderColor, setMarkerColor);
-	SET_VIEW_OPTION(projection, setProjection);
+	SET_VIEW_OPTION(outputProjection, setOutputProjection);
+	SET_VIEW_OPTION(inputProjection, setInputProjection);

 	SET_TAB_OPTION(palette, setPalette);
 	SET_TAB_OPTION(graphWidth, setGraphWidth);
@ -1014,23 +1005,18 @@ void GUI::openOptions()

 	if (options.connectionTimeout != _options.connectionTimeout)
 		Downloader::setTimeout(options.connectionTimeout);
-#ifdef ENABLE_HTTP2
 	if (options.enableHTTP2 != _options.enableHTTP2)
 		Downloader::enableHTTP2(options.enableHTTP2);
-#endif // ENABLE_HTTP2

-#ifdef ENABLE_HIDPI
 	if (options.hidpiMap != _options.hidpiMap)
 		_mapView->setDevicePixelRatio(devicePixelRatioF(),
 		  options.hidpiMap ? devicePixelRatioF() : 1.0);
-#endif // ENABLE_HIDPI
-#ifdef ENABLE_TIMEZONES
+
 	if (options.timeZone != _options.timeZone) {
 		_mapView->setTimeZone(options.timeZone.zone());
 		_dateRange.first = _dateRange.first.toTimeZone(options.timeZone.zone());
 		_dateRange.second = _dateRange.second.toTimeZone(options.timeZone.zone());
 	}
-#endif // ENABLE_TIMEZONES

 	if (reload)
 		reloadFiles();
@ -1058,12 +1044,9 @@ void GUI::exportPDFFile()
 	printer.setCreator(QString(APP_NAME) + QString(" ")
 	  + QString(APP_VERSION));
 	printer.setResolution(_pdfExport.resolution);
-	printer.setOrientation(_pdfExport.orientation);
+	printer.setPageLayout(QPageLayout(QPageSize(_pdfExport.paperSize),
+	  _pdfExport.orientation, _pdfExport.margins, QPageLayout::Millimeter));
 	printer.setOutputFileName(_pdfExport.fileName);
-	printer.setPaperSize(_pdfExport.paperSize);
-	printer.setPageMargins(_pdfExport.margins.left(), _pdfExport.margins.top(),
-	  _pdfExport.margins.right(), _pdfExport.margins.bottom(),
-	  QPrinter::Millimeter);

 	plot(&printer);
 }
@ -1319,8 +1302,6 @@ void GUI::reloadFiles()
 		_tabs.at(i)->clear();
 	_mapView->clear();

-	_sliderPos = 0;
-
 	for (int i = 0; i < _files.size(); i++) {
 		if (!loadFile(_files.at(i))) {
 			_files.removeAt(i);
@ -1349,8 +1330,6 @@ void GUI::closeFiles()
 	_dateRange = DateTimeRange(QDateTime(), QDateTime());
 	_pathName = QString();

-	_sliderPos = 0;
-
 	for (int i = 0; i < _tabs.count(); i++)
 		_tabs.at(i)->clear();
 	_mapView->clear();
@ -1690,18 +1669,25 @@ void GUI::poiFileChecked(int index)
 	  _poiFilesActions.at(index)->isChecked());
 }

-void GUI::sliderPositionChanged(qreal pos)
-{
-	_sliderPos = pos;
-}
-
 void GUI::graphChanged(int index)
 {
 	if (index < 0)
 		return;

+	_mapView->setGraph(index);
+
 	GraphTab *gt = static_cast<GraphTab*>(_graphTabWidget->widget(index));
-	gt->setSliderPosition(_sliderPos);
+	if (_lastGraphTab)
+		disconnect(_lastGraphTab, SIGNAL(sliderPositionChanged(qreal)),
+		  _mapView, SLOT(setMarkerPosition(qreal)));
+
+	connect(gt, SIGNAL(sliderPositionChanged(qreal)), _mapView,
+	  SLOT(setMarkerPosition(qreal)));
+
+	if (_lastGraphTab)
+		gt->setSliderPosition(_lastGraphTab->sliderPosition());
+
+	_lastGraphTab = gt;
 }

 void GUI::updateNavigationActions()
@ -1780,12 +1766,8 @@ void GUI::setCoordinatesFormat(CoordinatesFormat format)

 void GUI::setGraphType(GraphType type)
 {
-	_sliderPos = 0;
-
-	for (int i = 0; i <_tabs.count(); i++) {
+	for (int i = 0; i <_tabs.count(); i++)
 		_tabs.at(i)->setGraphType(type);
-		_tabs.at(i)->setSliderPosition(0);
-	}
 }

 void GUI::next()
@ -1979,9 +1961,6 @@ void GUI::writeSettings()
 	  != SHOW_GRAPH_SLIDER_INFO_DEFAULT)
 		settings.setValue(SHOW_GRAPH_SLIDER_INFO_SETTING,
 		  _showGraphSliderInfoAction->isChecked());
-	if (_showMarkersAction->isChecked() != SHOW_MARKERS_DEFAULT)
-		settings.setValue(SHOW_MARKERS_SETTING,
-		  _showMarkersAction->isChecked());
 	settings.endGroup();

 	settings.beginGroup(POI_SETTINGS_GROUP);
@ -2022,6 +2001,9 @@ void GUI::writeSettings()
 	if (_showTicksAction->isChecked() != SHOW_TICKS_DEFAULT)
 		settings.setValue(SHOW_TICKS_SETTING,
 		  _showTicksAction->isChecked());
+	if (_showMarkersAction->isChecked() != SHOW_MARKERS_DEFAULT)
+		settings.setValue(SHOW_MARKERS_SETTING,
+		  _showMarkersAction->isChecked());
 	settings.endGroup();

 	settings.beginGroup(PDF_EXPORT_SETTINGS_GROUP);
@ -2127,21 +2109,17 @@ void GUI::writeSettings()
 	if (_options.showSecondarySpeed != SHOW_SECONDARY_SPEED_DEFAULT)
 		settings.setValue(SHOW_SECONDARY_SPEED_SETTING,
 		  _options.showSecondarySpeed);
-#ifdef ENABLE_TIMEZONES
 	if (_options.timeZone != TimeZoneInfo())
 		settings.setValue(TIME_ZONE_SETTING, QVariant::fromValue(
 		  _options.timeZone));
-#endif // ENABLE_TIMEZONES
 	if (_options.useSegments != USE_SEGMENTS_DEFAULT)
 		settings.setValue(USE_SEGMENTS_SETTING, _options.useSegments);
 	if (_options.poiRadius != POI_RADIUS_DEFAULT)
 		settings.setValue(POI_RADIUS_SETTING, _options.poiRadius);
 	if (_options.useOpenGL != USE_OPENGL_DEFAULT)
 		settings.setValue(USE_OPENGL_SETTING, _options.useOpenGL);
-#ifdef ENABLE_HTTP2
 	if (_options.enableHTTP2 != ENABLE_HTTP2_DEFAULT)
 		settings.setValue(ENABLE_HTTP2_SETTING, _options.enableHTTP2);
-#endif // ENABLE_HTTP2
 	if (_options.pixmapCache != PIXMAP_CACHE_DEFAULT)
 		settings.setValue(PIXMAP_CACHE_SETTING, _options.pixmapCache);
 	if (_options.connectionTimeout != CONNECTION_TIMEOUT_DEFAULT)
@ -2165,12 +2143,12 @@ void GUI::writeSettings()
 		  _options.separateGraphPage);
 	if (_options.sliderColor != SLIDER_COLOR_DEFAULT)
 		settings.setValue(SLIDER_COLOR_SETTING, _options.sliderColor);
-	if (_options.projection != PROJECTION_DEFAULT)
-		settings.setValue(PROJECTION_SETTING, _options.projection);
-#ifdef ENABLE_HIDPI
+	if (_options.outputProjection != OUTPUT_PROJECTION_DEFAULT)
+		settings.setValue(OUTPUT_PROJECTION_SETTING, _options.outputProjection);
+	if (_options.inputProjection != INPUT_PROJECTION_DEFAULT)
+		settings.setValue(INPUT_PROJECTION_SETTING, _options.outputProjection);
 	if (_options.hidpiMap != HIDPI_MAP_DEFAULT)
 		settings.setValue(HIDPI_MAP_SETTING, _options.hidpiMap);
-#endif // ENABLE_HIDPI
 	settings.endGroup();
 }

@ -2253,15 +2231,11 @@ void GUI::readSettings()
 		showGraphSliderInfo(false);
 	else
 		_showGraphSliderInfoAction->setChecked(true);
-	if (!settings.value(SHOW_MARKERS_SETTING, SHOW_MARKERS_DEFAULT).toBool())
-		_mapView->showMarkers(false);
-	else
-		_showMarkersAction->setChecked(true);
 	settings.endGroup();

 	settings.beginGroup(POI_SETTINGS_GROUP);
 	if (!settings.value(OVERLAP_POI_SETTING, OVERLAP_POI_DEFAULT).toBool())
-		_mapView->setPOIOverlap(false);
+		_mapView->showOverlappedPOIs(false);
 	else
 		_overlapPOIAction->setChecked(true);
 	if (!settings.value(LABELS_POI_SETTING, LABELS_POI_DEFAULT).toBool())
@ -2323,14 +2297,18 @@ void GUI::readSettings()
 		_mapView->showTicks(true);
 		_showTicksAction->setChecked(true);
 	}
+	if (!settings.value(SHOW_MARKERS_SETTING, SHOW_MARKERS_DEFAULT).toBool())
+		_mapView->showMarkers(false);
+	else
+		_showMarkersAction->setChecked(true);
 	settings.endGroup();

 	settings.beginGroup(PDF_EXPORT_SETTINGS_GROUP);
-	_pdfExport.orientation = (QPrinter::Orientation) settings.value(
+	_pdfExport.orientation = (QPageLayout::Orientation) settings.value(
 	  PAPER_ORIENTATION_SETTING, PAPER_ORIENTATION_DEFAULT).toInt();
 	_pdfExport.resolution = settings.value(RESOLUTION_SETTING,
 	  RESOLUTION_DEFAULT).toInt();
-	_pdfExport.paperSize = (QPrinter::PaperSize) settings.value(
+	_pdfExport.paperSize = (QPageSize::PageSizeId) settings.value(
 	  PAPER_SIZE_SETTING, PAPER_SIZE_DEFAULT).toInt();
 	qreal ml = settings.value(PDF_MARGIN_LEFT_SETTING, PDF_MARGIN_LEFT_DEFAULT)
 	  .toReal();
@ -2340,7 +2318,7 @@ void GUI::readSettings()
 	  PDF_MARGIN_RIGHT_DEFAULT).toReal();
 	qreal mb = settings.value(PDF_MARGIN_BOTTOM_SETTING,
 	  PDF_MARGIN_BOTTOM_DEFAULT).toReal();
-	_pdfExport.margins = MarginsF(ml, mt, mr, mb);
+	_pdfExport.margins = QMarginsF(ml, mt, mr, mb);
 	_pdfExport.fileName = settings.value(PDF_FILENAME_SETTING,
 	 PDF_FILENAME_DEFAULT).toString();
 	settings.endGroup();
@ -2425,9 +2403,7 @@ void GUI::readSettings()
 	_options.showSecondarySpeed = settings.value(
 	  SHOW_SECONDARY_SPEED_SETTING,
 	  SHOW_SECONDARY_SPEED_DEFAULT).toBool();
-#ifdef ENABLE_TIMEZONES
 	_options.timeZone = settings.value(TIME_ZONE_SETTING).value<TimeZoneInfo>();
-#endif // ENABLE_TIMEZONES
 	_options.useSegments = settings.value(USE_SEGMENTS_SETTING,
 	  USE_SEGMENTS_DEFAULT).toBool();
 	_options.automaticPause = settings.value(AUTOMATIC_PAUSE_SETTING,
@ -2438,10 +2414,8 @@ void GUI::readSettings()
 	  .toInt();
 	_options.useOpenGL = settings.value(USE_OPENGL_SETTING, USE_OPENGL_DEFAULT)
 	  .toBool();
-#ifdef ENABLE_HTTP2
 	_options.enableHTTP2 = settings.value(ENABLE_HTTP2_SETTING,
 	  ENABLE_HTTP2_DEFAULT).toBool();
-#endif // ENABLE_HTTP2
 	_options.pixmapCache = settings.value(PIXMAP_CACHE_SETTING,
 	  PIXMAP_CACHE_DEFAULT).toInt();
 	_options.connectionTimeout = settings.value(CONNECTION_TIMEOUT_SETTING,
@ -2464,12 +2438,12 @@ void GUI::readSettings()
 	  SEPARATE_GRAPH_PAGE_DEFAULT).toBool();
 	_options.sliderColor = settings.value(SLIDER_COLOR_SETTING,
 	  SLIDER_COLOR_DEFAULT).value<QColor>();
-	_options.projection = settings.value(PROJECTION_SETTING, PROJECTION_DEFAULT)
-	  .toInt();
-#ifdef ENABLE_HIDPI
+	_options.outputProjection = settings.value(OUTPUT_PROJECTION_SETTING,
+	  OUTPUT_PROJECTION_DEFAULT).toInt();
+	_options.inputProjection = settings.value(INPUT_PROJECTION_SETTING,
+	  INPUT_PROJECTION_DEFAULT).toInt();
 	_options.hidpiMap = settings.value(HIDPI_MAP_SETTING, HIDPI_MAP_SETTING)
 	  .toBool();
-#endif // ENABLE_HIDPI

 	_mapView->setPalette(_options.palette);
 	_mapView->setMapOpacity(_options.mapOpacity);
@ -2489,14 +2463,11 @@ void GUI::readSettings()
 	_mapView->setMarkerColor(_options.sliderColor);
 	if (_options.useOpenGL)
 		_mapView->useOpenGL(true);
-#ifdef ENABLE_HIDPI
 	_mapView->setDevicePixelRatio(devicePixelRatioF(),
 	  _options.hidpiMap ? devicePixelRatioF() : 1.0);
-#endif // ENABLE_HIDPI
-	_mapView->setProjection(_options.projection);
-#ifdef ENABLE_TIMEZONES
+	_mapView->setOutputProjection(_options.outputProjection);
+	_mapView->setInputProjection(_options.inputProjection);
 	_mapView->setTimeZone(_options.timeZone.zone());
-#endif // ENABLE_TIMEZONES

 	for (int i = 0; i < _tabs.count(); i++) {
 		_tabs.at(i)->setPalette(_options.palette);
@ -2587,20 +2558,17 @@ void GUI::show()
 {
 	QMainWindow::show();

-#ifdef ENABLE_HIDPI
 	QWindow *w = windowHandle();
 	connect(w->screen(), SIGNAL(logicalDotsPerInchChanged(qreal)), this,
 	  SLOT(logicalDotsPerInchChanged(qreal)));
 	connect(w, SIGNAL(screenChanged(QScreen*)), this,
 	  SLOT(screenChanged(QScreen*)));
-#endif // ENABLE_HIDPI

 	_mapView->fitContentToSize();
 }

 void GUI::screenChanged(QScreen *screen)
 {
-#ifdef ENABLE_HIDPI
 	_mapView->setDevicePixelRatio(devicePixelRatioF(),
 	  _options.hidpiMap ? devicePixelRatioF() : 1.0);

@ -2608,17 +2576,12 @@ void GUI::screenChanged(QScreen *screen)
 	  SLOT(logicalDotsPerInchChanged(qreal)));
 	connect(screen, SIGNAL(logicalDotsPerInchChanged(qreal)), this,
 	  SLOT(logicalDotsPerInchChanged(qreal)));
-#else // ENABLE_HIDPI
-	Q_UNUSED(screen);
-#endif // ENABLE_HIDPI
 }

 void GUI::logicalDotsPerInchChanged(qreal dpi)
 {
 	Q_UNUSED(dpi)

-#ifdef ENABLE_HIDPI
 	_mapView->setDevicePixelRatio(devicePixelRatioF(),
 	  _options.hidpiMap ? devicePixelRatioF() : 1.0);
-#endif // ENBLE_HIDPI
 }
--- a/src/GUI/gui.h
+++ b/src/GUI/gui.h
@ -91,7 +91,6 @@ private slots:
 	void setDegreesMinutes() {setCoordinatesFormat(DegreesMinutes);}
 	void setDMS() {setCoordinatesFormat(DMS);}

-	void sliderPositionChanged(qreal pos);
 	void screenChanged(QScreen *screen);
 	void logicalDotsPerInchChanged(qreal dpi);

@ -236,7 +235,7 @@ private:
 	DateTimeRange _dateRange;
 	QString _pathName;

-	qreal _sliderPos;
+	GraphTab *_lastGraphTab;

 	QList<QByteArray> _windowStates;
 	int _frameStyle;
--- a/src/GUI/infoitem.cpp
+++ b/src/GUI/infoitem.cpp
@ -18,9 +18,9 @@ void InfoItem::updateBoundingRect()

 	for (QList<KV<QString, QString> >::const_iterator i = _list.constBegin();
 	  i != _list.constEnd(); i++) {
-		width += fm.width(i->key() + ": ");
-		width += fm.width(i->value()) + ((i == _list.constEnd() - 1)
-		  ? 0 : PADDING);
+		width += fm.horizontalAdvance(i->key() + ": " + i->value());
+		if (i != _list.constEnd() - 1)
+			width += PADDING;
 	}

 	_boundingRect = QRectF(0, 0, width, _list.isEmpty() ? 0 : fm.height());
@ -39,12 +39,11 @@ void InfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,

 	for (QList<KV<QString, QString> >::const_iterator i = _list.constBegin();
 	  i != _list.constEnd(); i++) {
-		painter->drawText(width, fm.height() - fm.descent(), i->key() + ": ");
-		width += fm.width(i->key() + ": ");
-		painter->drawText(width, fm.height() - fm.descent(), i->value());
-		width += fm.width(i->value()) + ((i == _list.constEnd() - 1)
-		  ? 0 : PADDING);
+		QString text(i->key() + ": " + i->value());
+		painter->drawText(width, fm.height() - fm.descent(), text);
+		width += fm.horizontalAdvance(text);
 		if (i != _list.constEnd() - 1) {
+			width += PADDING;
 			painter->save();
 			painter->setPen(Qt::gray);
 			painter->drawLine(width - PADDING/2, fm.descent(),
--- a/src/GUI/mapview.cpp
+++ b/src/GUI/mapview.cpp
@ -4,11 +4,11 @@
 #include <QApplication>
 #include <QScrollBar>
 #include <QClipboard>
+#include <QOpenGLWidget>
 #include "data/poi.h"
 #include "data/data.h"
 #include "map/map.h"
 #include "map/pcs.h"
-#include "opengl.h"
 #include "trackitem.h"
 #include "routeitem.h"
 #include "waypointitem.h"
@ -67,10 +67,12 @@ MapView::MapView(Map *map, POI *poi, QWidget *parent)
 	_coordinates->setVisible(false);
 	_scene->addItem(_coordinates);

-	_projection = PCS::pcs(3857);
+	_outputProjection = PCS::pcs(3857);
+	_inputProjection = GCS::gcs(4326);
 	_map = map;
 	_map->load();
-	_map->setProjection(_projection);
+	_map->setOutputProjection(_outputProjection);
+	_map->setInputProjection(_inputProjection);
 	connect(_map, SIGNAL(tilesLoaded()), this, SLOT(reloadMap()));

 	_poi = poi;
@ -101,10 +103,8 @@ MapView::MapView(Map *map, POI *poi, QWidget *parent)
 	_poiSize = 8;
 	_poiColor = Qt::black;

-#ifdef ENABLE_HIDPI
 	_deviceRatio = 1.0;
 	_mapRatio = 1.0;
-#endif // ENABLE_HIDPI
 	_opengl = false;
 	_plot = false;
 	_digitalZoom = 0;
@ -371,10 +371,9 @@ void MapView::setMap(Map *map)

 	_map = map;
 	_map->load();
-	_map->setProjection(_projection);
-#ifdef ENABLE_HIDPI
+	_map->setOutputProjection(_outputProjection);
+	_map->setInputProjection(_inputProjection);
 	_map->setDevicePixelRatio(_deviceRatio, _mapRatio);
-#endif // ENABLE_HIDPI
 	connect(_map, SIGNAL(tilesLoaded()), this, SLOT(reloadMap()));

 	digitalZoom(0);
@ -413,6 +412,14 @@ void MapView::setPOI(POI *poi)
 	updatePOI();
 }

+void MapView::setGraph(int index)
+{
+	for (int i = 0; i < _tracks.size(); i++)
+		_tracks.at(i)->setGraph(index);
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->setGraph(index);
+}
+
 void MapView::updatePOI()
 {
 	for (POIHash::const_iterator it = _pois.constBegin();
@ -480,12 +487,8 @@ void MapView::setCoordinatesFormat(CoordinatesFormat format)

 void MapView::setTimeZone(const QTimeZone &zone)
 {
-#ifdef ENABLE_TIMEZONES
 	WaypointItem::setTimeZone(zone);
 	PathItem::setTimeZone(zone);
-#else // ENABLE_TIMEZONES
-	Q_UNUSED(zone);
-#endif // ENABLE_TIMEZONES
 }

 void MapView::clearMapCache()
@ -520,10 +523,8 @@ void MapView::digitalZoom(int zoom)
 	_coordinates->setDigitalZoom(_digitalZoom);
 }

-void MapView::zoom(int zoom, const QPoint &pos)
+void MapView::zoom(int zoom, const QPoint &pos, bool shift)
 {
-	bool shift = QApplication::keyboardModifiers() & Qt::ShiftModifier;
-
 	if (_digitalZoom) {
 		if (((_digitalZoom > 0 && zoom > 0) && (!shift || _digitalZoom
 		  >= MAX_DIGITAL_ZOOM)) || ((_digitalZoom < 0 && zoom < 0) && (!shift
@ -549,17 +550,28 @@ void MapView::zoom(int zoom, const QPoint &pos)
 void MapView::wheelEvent(QWheelEvent *event)
 {
 	static int deg = 0;
+	bool shift = (event->modifiers() & MODIFIER) ? true : false;
+	// Shift inverts the wheel axis on OS X, so use scrolling in both axes for
+	// the zoom.
+	int delta = event->angleDelta().y()
+	  ? event->angleDelta().y() : event->angleDelta().x();

-	deg += event->delta() / 8;
+	deg += delta / 8;
 	if (qAbs(deg) < 15)
 		return;
 	deg = 0;

-	zoom((event->delta() > 0) ? 1 : -1, event->pos());
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
+	zoom((delta > 0) ? 1 : -1, event->pos(), shift);
+#else // QT 5.15
+	zoom((delta > 0) ? 1 : -1, event->position().toPoint(), shift);
+#endif // QT 5.15
 }

 void MapView::mouseDoubleClickEvent(QMouseEvent *event)
 {
+	bool shift = (event->modifiers() & MODIFIER) ? true : false;
+
 	QGraphicsView::mouseDoubleClickEvent(event);
 	if (event->isAccepted())
 		return;
@ -567,13 +579,13 @@ void MapView::mouseDoubleClickEvent(QMouseEvent *event)
 	if (event->button() != Qt::LeftButton && event->button() != Qt::RightButton)
 		return;

-	zoom((event->button() == Qt::LeftButton) ? 1 : -1, event->pos());
+	zoom((event->button() == Qt::LeftButton) ? 1 : -1, event->pos(), shift);
 }

 void MapView::keyPressEvent(QKeyEvent *event)
 {
 	int z;
-
+	bool shift = (event->modifiers() & MODIFIER) ? true : false;
 	QPoint pos = viewport()->rect().center();

 	if (event->key() == ZOOM_IN)
@ -593,7 +605,7 @@ void MapView::keyPressEvent(QKeyEvent *event)
 		return;
 	}

-	zoom(z, pos);
+	zoom(z, pos, shift);
 }

 void MapView::keyReleaseEvent(QKeyEvent *event)
@ -626,9 +638,7 @@ void MapView::plot(QPainter *painter, const QRectF &target, qreal scale,
 	// Enter plot mode
 	setUpdatesEnabled(false);
 	_plot = true;
-#ifdef ENABLE_HIDPI
 	_map->setDevicePixelRatio(_deviceRatio, 1.0);
-#endif // ENABLE_HIDPI

 	// Compute sizes & ratios
 	orig = viewport()->rect();
@ -695,9 +705,7 @@ void MapView::plot(QPainter *painter, const QRectF &target, qreal scale,
 	_mapScale->setPos(origPos);

 	// Exit plot mode
-#ifdef ENABLE_HIDPI
 	_map->setDevicePixelRatio(_deviceRatio, _mapRatio);
-#endif // ENABLE_HIDPI
 	_plot = false;
 	setUpdatesEnabled(true);
 }
@ -840,9 +848,9 @@ void MapView::showCoordinates(bool show)
 	setMouseTracking(show);
 }

-void MapView::setPOIOverlap(bool overlap)
+void MapView::showOverlappedPOIs(bool show)
 {
-	_overlapPOIs = overlap;
+	_overlapPOIs = show;

 	updatePOIVisibility();
 }
@ -1019,7 +1027,7 @@ void MapView::useOpenGL(bool use)
 	_opengl = use;

 	if (use)
-		setViewport(new OPENGL_WIDGET);
+		setViewport(new QOpenGLWidget);
 	else
 		setViewport(new QWidget);
 }
@ -1039,6 +1047,14 @@ void MapView::setMarkerColor(const QColor &color)
 		_routes.at(i)->setMarkerColor(color);
 }

+void MapView::setMarkerPosition(qreal pos)
+{
+	for (int i = 0; i < _tracks.size(); i++)
+		_tracks.at(i)->setMarkerPosition(pos);
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->setMarkerPosition(pos);
+}
+
 void MapView::reloadMap()
 {
 	_scene->invalidate();
@ -1046,7 +1062,6 @@ void MapView::reloadMap()

 void MapView::setDevicePixelRatio(qreal deviceRatio, qreal mapRatio)
 {
-#ifdef ENABLE_HIDPI
 	if (_deviceRatio == deviceRatio && _mapRatio == mapRatio)
 		return;

@ -1079,26 +1094,40 @@ void MapView::setDevicePixelRatio(qreal deviceRatio, qreal mapRatio)
 	centerOn(nc);

 	reloadMap();
-#else // ENABLE_HIDPI
-	Q_UNUSED(deviceRatio);
-	Q_UNUSED(mapRatio);
-#endif // ENABLE_HIDPI
 }

-void MapView::setProjection(int id)
+void MapView::setOutputProjection(int id)
 {
 	const PCS *pcs;
 	const GCS *gcs;
 	Coordinates center = _map->xy2ll(mapToScene(viewport()->rect().center()));

 	if ((pcs = PCS::pcs(id)))
-		_projection = Projection(pcs);
+		_outputProjection = Projection(pcs);
 	else if ((gcs = GCS::gcs(id)))
-		_projection = Projection(gcs);
+		_outputProjection = Projection(gcs);
 	else
 		qWarning("%d: Unknown PCS/GCS id", id);

-	_map->setProjection(_projection);
+	_map->setOutputProjection(_outputProjection);
+	rescale();
+	centerOn(_map->ll2xy(center));
+}
+
+void MapView::setInputProjection(int id)
+{
+	const PCS *pcs;
+	const GCS *gcs;
+	Coordinates center = _map->xy2ll(mapToScene(viewport()->rect().center()));
+
+	if ((pcs = PCS::pcs(id)))
+		_inputProjection = Projection(pcs);
+	else if ((gcs = GCS::gcs(id)))
+		_inputProjection = Projection(gcs);
+	else
+		qWarning("%d: Unknown PCS/GCS id", id);
+
+	_map->setInputProjection(_inputProjection);
 	rescale();
 	centerOn(_map->ll2xy(center));
 }
--- a/src/GUI/mapview.h
+++ b/src/GUI/mapview.h
@ -56,6 +56,7 @@ public:
 	void setPalette(const Palette &palette);
 	void setPOI(POI *poi);
 	void setMap(Map *map);
+	void setGraph(int index);

 	void plot(QPainter *painter, const QRectF &target, qreal scale,
 	  PlotFlags flags);
@ -79,28 +80,29 @@ public:
 	void setBackgroundColor(const QColor &color);
 	void useOpenGL(bool use);
 	void useAntiAliasing(bool use);
+	void setCoordinatesFormat(CoordinatesFormat format);
+	void setTimeZone(const QTimeZone &zone);
+	void setDevicePixelRatio(qreal deviceRatio, qreal mapRatio);
+	void setOutputProjection(int id);
+	void setInputProjection(int id);
+	void clearMapCache();
+	void fitContentToSize();

 public slots:
 	void showMap(bool show);
 	void showPOI(bool show);
-	void setPOIOverlap(bool overlap);
-	void showWaypointLabels(bool show);
 	void showPOILabels(bool show);
+	void showCoordinates(bool show);
+	void showTicks(bool show);
+	void showMarkers(bool show);
+	void showOverlappedPOIs(bool show);
+	void showWaypointLabels(bool show);
 	void showTracks(bool show);
 	void showRoutes(bool show);
 	void showAreas(bool show);
 	void showWaypoints(bool show);
 	void showRouteWaypoints(bool show);
-	void showMarkers(bool show);
-	void showCoordinates(bool show);
-	void showTicks(bool show);
-	void clearMapCache();
-	void setCoordinatesFormat(CoordinatesFormat format);
-	void setTimeZone(const QTimeZone &zone);
-	void setDevicePixelRatio(qreal deviceRatio, qreal mapRatio);
-	void setProjection(int id);
-
-	void fitContentToSize();
+	void setMarkerPosition(qreal pos);

 private slots:
 	void updatePOI();
@ -122,7 +124,7 @@ private:
 	QPointF contentCenter() const;
 	void rescale();
 	void centerOn(const QPointF &pos);
-	void zoom(int zoom, const QPoint &pos);
+	void zoom(int zoom, const QPoint &pos, bool shift);
 	void digitalZoom(int zoom);
 	void updatePOIVisibility();
 	void skipColor() {_palette.nextColor();}
@ -155,7 +157,7 @@ private:

 	Palette _palette;
 	qreal _mapOpacity;
-	Projection _projection;
+	Projection _outputProjection, _inputProjection;

 	bool _showMap, _showTracks, _showRoutes, _showAreas, _showWaypoints,
 	  _showWaypointLabels, _showPOI, _showPOILabels, _showRouteWaypoints,
@ -171,10 +173,8 @@ private:
 	bool _plot;
 	QCursor _cursor;

-#ifdef ENABLE_HIDPI
 	qreal _deviceRatio;
 	qreal _mapRatio;
-#endif // ENABLE_HIDPI
 	bool _opengl;
 };

--- a/src/GUI/margins.h
+++ b/src/GUI/margins.h
@ -1,44 +0,0 @@
-#ifndef MARGINS_H
-#define MARGINS_H
-
-#include <QtGlobal>
-#include <QDebug>
-
-class MarginsF
-{
-public:
-	MarginsF() {_left = 0; _top = 0; _right = 0; _bottom = 0;}
-	MarginsF(qreal left, qreal top, qreal right, qreal bottom)
-	  {_left = left, _top = top; _right = right; _bottom = bottom;}
-
-	qreal left() const {return _left;}
-	qreal top() const {return _top;}
-	qreal right() const {return _right;}
-	qreal bottom() const {return _bottom;}
-
-private:
-	qreal _left, _top, _right, _bottom;
-};
-
-inline MarginsF operator*(const MarginsF &margins, qreal factor)
-{
-	return MarginsF(margins.left() * factor, margins.top() * factor,
-	  margins.right() * factor, margins.bottom() * factor);
-}
-
-inline MarginsF operator/(const MarginsF &margins, qreal factor)
-{
-	return MarginsF(margins.left() / factor, margins.top() / factor,
-	  margins.right() / factor, margins.bottom() / factor);
-}
-
-#ifndef QT_NO_DEBUG
-inline QDebug operator<<(QDebug dbg, const MarginsF &margins)
-{
-	dbg.nospace() << "MarginsF(" << margins.left() << ", " << margins.top()
-	  << ", " << margins.right() << margins.bottom() << ")";
-	return dbg.space();
-}
-#endif // QT_NO_DEBUG
-
-#endif // MARGINS_H
--- a/src/GUI/marginswidget.cpp
+++ b/src/GUI/marginswidget.cpp
@ -75,7 +75,7 @@ MarginsFWidget::MarginsFWidget(QWidget *parent) : QWidget(parent)
 	setLayout(layout);
 }

-void MarginsFWidget::setValue(const MarginsF &value)
+void MarginsFWidget::setValue(const QMarginsF &value)
 {
 	_top->setValue(value.top());
 	_bottom->setValue(value.bottom());
@ -104,8 +104,8 @@ void MarginsFWidget::setSingleStep(qreal step)
 	_right->setSingleStep(step);
 }

-MarginsF MarginsFWidget::value() const
+QMarginsF MarginsFWidget::value() const
 {
-	return MarginsF(_left->value(), _top->value(), _right->value(),
+	return QMarginsF(_left->value(), _top->value(), _right->value(),
 	  _bottom->value());
 }
--- a/src/GUI/marginswidget.h
+++ b/src/GUI/marginswidget.h
@ -3,7 +3,6 @@

 #include <QWidget>
 #include <QMargins>
-#include "margins.h"

 class QSpinBox;
 class QDoubleSpinBox;
@ -33,8 +32,8 @@ class MarginsFWidget : public QWidget
 public:
 	MarginsFWidget(QWidget *parent = 0);

-	MarginsF value() const;
-	void setValue(const MarginsF &value);
+	QMarginsF value() const;
+	void setValue(const QMarginsF &value);
 	void setUnits(const QString &units);
 	void setSingleStep(qreal step);

--- a/src/GUI/opengl.h
+++ b/src/GUI/opengl.h
@ -1,28 +0,0 @@
-#include <QtGlobal>
-#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
-#include <QGLWidget>
-#include <QGLFormat>
-#else
-#include <QOpenGLWidget>
-#include <QSurfaceFormat>
-#endif
-
-#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
-#define OPENGL_WIDGET QGLWidget
-#else
-#define OPENGL_WIDGET QOpenGLWidget
-#endif
-
-#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
-#define OPENGL_SET_FORMAT(samples, stencilBuffer) \
-	{QGLFormat fmt; \
-	fmt.setStencilBufferSize(stencilBuffer); \
-	fmt.setSamples(samples); \
-	QGLFormat::setDefaultFormat(fmt);}
-#else
-#define OPENGL_SET_FORMAT(samples, stencilBuffer) \
-	{QSurfaceFormat fmt; \
-	fmt.setStencilBufferSize(stencilBuffer); \
-	fmt.setSamples(samples); \
-	QSurfaceFormat::setDefaultFormat(fmt);}
-#endif
--- a/src/GUI/optionsdialog.cpp
+++ b/src/GUI/optionsdialog.cpp
@ -46,19 +46,53 @@ void OptionsDialog::automaticPauseDetectionSet(bool set)

 QWidget *OptionsDialog::createMapPage()
 {
-	_projection = new LimitedComboBox(200);
+	int last = -1;

+	_outputProjection = new LimitedComboBox(200);
 	QList<KV<int, QString> > projections(GCS::list() + PCS::list());
-	qSort(projections);
-
+	std::sort(projections.begin(), projections.end());
 	for (int i = 0; i < projections.size(); i++) {
-		QString text = QString::number(projections.at(i).key()) + " - "
-		  + projections.at(i).value();
-		_projection->addItem(text, QVariant(projections.at(i).key()));
+		const KV<int, QString> &proj = projections.at(i);
+		// There may be same EPSG codes with different names
+		if (proj.key() == last)
+			continue;
+		else
+			last = proj.key();
+		QString text = QString::number(proj.key()) + " - " + proj.value();
+		_outputProjection->addItem(text, QVariant(proj.key()));
 	}
-	_projection->setCurrentIndex(_projection->findData(_options.projection));
+	_outputProjection->setCurrentIndex(_outputProjection->findData(
+	  _options.outputProjection));
+
+	_inputProjection = new LimitedComboBox(200);
+	last = -1;
+	for (int i = 0; i < projections.size(); i++) {
+		const KV<int, QString> &proj = projections.at(i);
+		// There may be same EPSG codes with different names
+		if (proj.key() == last)
+			continue;
+		else
+			last = proj.key();
+		if (proj.key() == 4326 || proj.key() == 3857) {
+			QString text = QString::number(proj.key()) + " - " + proj.value();
+			_inputProjection->addItem(text, QVariant(proj.key()));
+		}
+	}
+	_inputProjection->setCurrentIndex(_inputProjection->findData(
+	  _options.inputProjection));
+
+	QLabel *inInfo = new QLabel(tr("Select the proper projection of"
+	  " JNX and KMZ maps. Both EPSG:3857 and EPSG:4326 projected maps"
+	  " exist and there is no projection info in the map file."));
+	QLabel *outInfo = new QLabel(tr("Select the desired projection of IMG"
+	  " maps. The projection must be valid for the whole map area."));
+	QFont f = inInfo->font();
+	f.setPointSize(f.pointSize() - 1);
+	inInfo->setWordWrap(true);
+	outInfo->setWordWrap(true);
+	inInfo->setFont(f);
+	outInfo->setFont(f);

-#ifdef ENABLE_HIDPI
 	_hidpi = new QRadioButton(tr("High-resolution"));
 	_lodpi = new QRadioButton(tr("Standard"));
 	if (_options.hidpiMap)
@ -69,24 +103,39 @@ QWidget *OptionsDialog::createMapPage()
 	  "The map is sharp but map objects are small/hard to read."));
 	QLabel *llo = new QLabel(tr("Non-HiDPI maps are loaded such as they are. "
 	  "Map objects have the expected size but the map is blurry."));
-	QFont f = lhi->font();
-	f.setPointSize(f.pointSize() - 1);
 	lhi->setWordWrap(true);
 	llo->setWordWrap(true);
 	lhi->setFont(f);
 	llo->setFont(f);
-#endif // ENABLE_HIDPI

-	QFormLayout *vectorLayout = new QFormLayout();
-	vectorLayout->addRow(tr("Projection:"), _projection);
+	QVBoxLayout *inLayout = new QVBoxLayout();
+	inLayout->addWidget(_inputProjection);
+	inLayout->addWidget(inInfo);
+	QVBoxLayout *outLayout = new QVBoxLayout();
+	outLayout->addWidget(_outputProjection);
+	outLayout->addWidget(outInfo);
+#ifndef Q_OS_MAC
+	QGroupBox *inBox = new QGroupBox(tr("Input"));
+	inBox->setLayout(inLayout);
+	QGroupBox *outBox = new QGroupBox(tr("Output"));
+	outBox->setLayout(outLayout);
+#endif // Q_OS_MAC

-	QWidget *vectorMapsTab = new QWidget();
-	QVBoxLayout *vectorMapsTabLayout = new QVBoxLayout();
-	vectorMapsTabLayout->addLayout(vectorLayout);
-	vectorMapsTabLayout->addStretch();
-	vectorMapsTab->setLayout(vectorMapsTabLayout);
+	QWidget *projectionTab = new QWidget();
+	QVBoxLayout *projectionTabLayout = new QVBoxLayout();
+#ifdef Q_OS_MAC
+	projectionTabLayout->addWidget(new QLabel(tr("Input:")));
+	projectionTabLayout->addLayout(inLayout);
+	projectionTabLayout->addWidget(line());
+	projectionTabLayout->addWidget(new QLabel(tr("Output:")));
+	projectionTabLayout->addLayout(outLayout);
+#else // Q_OS_MAC
+	projectionTabLayout->addWidget(inBox);
+	projectionTabLayout->addWidget(outBox);
+#endif // Q_OS_MAC
+	projectionTabLayout->addStretch();
+	projectionTab->setLayout(projectionTabLayout);

-#ifdef ENABLE_HIDPI
 	QVBoxLayout *hidpiTabLayout = new QVBoxLayout();
 	hidpiTabLayout->addWidget(_lodpi);
 	hidpiTabLayout->addWidget(llo);
@ -97,13 +146,10 @@ QWidget *OptionsDialog::createMapPage()

 	QWidget *hidpiTab = new QWidget();
 	hidpiTab->setLayout(hidpiTabLayout);
-#endif // ENABLE_HIDPI

 	QTabWidget *mapPage = new QTabWidget();
-	mapPage->addTab(vectorMapsTab, tr("Vector maps"));
-#ifdef ENABLE_HIDPI
+	mapPage->addTab(projectionTab, tr("Projection"));
 	mapPage->addTab(hidpiTab, tr("HiDPI display mode"));
-#endif // ENABLE_HIDPI

 	return mapPage;
 }
@ -416,7 +462,6 @@ QWidget *OptionsDialog::createDataPage()
 	_showSecondaryElevation = new QCheckBox(tr("Show secondary elevation"));
 	_showSecondaryElevation->setChecked(_options.showSecondaryElevation);

-#ifdef ENABLE_TIMEZONES
 	_utcZone = new QRadioButton(tr("UTC"));
 	_systemZone = new QRadioButton(tr("System"));
 	_customZone = new QRadioButton(tr("Custom"));
@ -437,7 +482,6 @@ QWidget *OptionsDialog::createDataPage()
 	QHBoxLayout *customZoneLayout = new QHBoxLayout();
 	customZoneLayout->addSpacing(20);
 	customZoneLayout->addWidget(_timeZone);
-#endif // ENABLE_TIMEZONES

 	_useSegments = new QCheckBox(tr("Use segments"));
 	_useSegments->setChecked(_options.useSegments);
@ -462,7 +506,6 @@ QWidget *OptionsDialog::createDataPage()
 	elevationOptions->addWidget(_dataDEMElevation);
 	elevationOptions->addWidget(_showSecondaryElevation);

-#ifdef ENABLE_TIMEZONES
 	QButtonGroup *timeZoneGroup = new QButtonGroup(this);
 	timeZoneGroup->addButton(_utcZone);
 	timeZoneGroup->addButton(_systemZone);
@ -472,15 +515,12 @@ QWidget *OptionsDialog::createDataPage()
 	zoneOptions->addWidget(_systemZone);
 	zoneOptions->addWidget(_customZone);
 	zoneOptions->addItem(customZoneLayout);
-#endif // ENABLE_TIMEZONES

 	QFormLayout *formLayout = new QFormLayout();
 	formLayout->addRow(tr("Speed:"), speedOptions);
 	formLayout->addRow(tr("Elevation:"), elevationOptions);

-#ifdef ENABLE_TIMEZONES
 	formLayout->addRow(tr("Time zone:"), zoneOptions);
-#endif // ENABLE_TIMEZONES

 	QFormLayout *segmentsLayout = new QFormLayout();
 	segmentsLayout->addWidget(_useSegments);
@ -492,9 +532,7 @@ QWidget *OptionsDialog::createDataPage()
 #else // Q_OS_MAC
 	QFormLayout *speedLayout = new QFormLayout();
 	QFormLayout *elevationLayout = new QFormLayout();
-#ifdef ENABLE_TIMEZONES
 	QFormLayout *timeZoneLayout = new QFormLayout();
-#endif // ENABLE_TIMEZONES
 	QFormLayout *segmentsLayout = new QFormLayout();

 	speedLayout->addWidget(_computedSpeed);
@ -511,7 +549,6 @@ QWidget *OptionsDialog::createDataPage()
 	QGroupBox *elevationBox = new QGroupBox(tr("Elevation"));
 	elevationBox->setLayout(elevationLayout);

-#ifdef ENABLE_TIMEZONES
 	timeZoneLayout->addWidget(_utcZone);
 	timeZoneLayout->addWidget(_systemZone);
 	timeZoneLayout->addWidget(_customZone);
@ -519,15 +556,12 @@ QWidget *OptionsDialog::createDataPage()

 	QGroupBox *timeZoneBox = new QGroupBox(tr("Time zone"));
 	timeZoneBox->setLayout(timeZoneLayout);
-#endif // ENABLE_TIMEZONES

 	segmentsLayout->addWidget(_useSegments);

 	sourceTabLayout->addWidget(speedBox);
 	sourceTabLayout->addWidget(elevationBox);
-#ifdef ENABLE_TIMEZONES
 	sourceTabLayout->addWidget(timeZoneBox);
-#endif // ENABLE_TIMEZONES
 	sourceTabLayout->addLayout(segmentsLayout);
 #endif // Q_OS_MAC
 	sourceTabLayout->addStretch();
@ -648,10 +682,8 @@ QWidget *OptionsDialog::createSystemPage()
 {
 	_useOpenGL = new QCheckBox(tr("Use OpenGL"));
 	_useOpenGL->setChecked(_options.useOpenGL);
-#ifdef ENABLE_HTTP2
 	_enableHTTP2 = new QCheckBox(tr("Enable HTTP/2"));
 	_enableHTTP2->setChecked(_options.enableHTTP2);
-#endif // ENABLE_HTTP2

 	_pixmapCache = new QSpinBox();
 	_pixmapCache->setMinimum(16);
@ -670,9 +702,7 @@ QWidget *OptionsDialog::createSystemPage()
 	formLayout->addRow(tr("Connection timeout:"), _connectionTimeout);

 	QFormLayout *checkboxLayout = new QFormLayout();
-#ifdef ENABLE_HTTP2
 	checkboxLayout->addWidget(_enableHTTP2);
-#endif // ENABLE_HTTP2
 	checkboxLayout->addWidget(_useOpenGL);

 	QWidget *systemTab = new QWidget();
@ -764,11 +794,11 @@ void OptionsDialog::accept()
 	_options.sliderColor = _sliderColor->color();
 	_options.graphAntiAliasing = _graphAA->isChecked();

-	_options.projection = _projection->itemData(_projection->currentIndex())
-	  .toInt();
-#ifdef ENABLE_HIDPI
+	_options.outputProjection = _outputProjection->itemData(
+	  _outputProjection->currentIndex()).toInt();
+	_options.inputProjection = _inputProjection->itemData(
+	  _inputProjection->currentIndex()).toInt();
 	_options.hidpiMap = _hidpi->isChecked();
-#endif // ENABLE_HIDPI

 	_options.elevationFilter = _elevationFilter->value();
 	_options.speedFilter = _speedFilter->value();
@ -787,13 +817,11 @@ void OptionsDialog::accept()
 	_options.dataUseDEM = _dataDEMElevation->isChecked();
 	_options.showSecondaryElevation = _showSecondaryElevation->isChecked();
 	_options.showSecondarySpeed = _showSecondarySpeed->isChecked();
-#ifdef ENABLE_TIMEZONES
 	_options.timeZone.setType(_utcZone->isChecked()
 	  ? TimeZoneInfo::UTC : _systemZone->isChecked()
 	  ? TimeZoneInfo::System : TimeZoneInfo::Custom);
 	_options.timeZone.setCustomZone(QTimeZone(_timeZone->currentText()
 	  .toLatin1()));
-#endif // ENABLE_TIMEZONES
 	_options.useSegments = _useSegments->isChecked();

 	qreal poiRadius = (_units == Imperial)
@ -803,9 +831,7 @@ void OptionsDialog::accept()
 		_options.poiRadius = poiRadius;

 	_options.useOpenGL = _useOpenGL->isChecked();
-#ifdef ENABLE_HTTP2
 	_options.enableHTTP2 = _enableHTTP2->isChecked();
-#endif // ENABLE_HTTP2
 	_options.pixmapCache = _pixmapCache->value();
 	_options.connectionTimeout = _connectionTimeout->value();

--- a/src/GUI/optionsdialog.h
+++ b/src/GUI/optionsdialog.h
@ -2,12 +2,9 @@
 #define OPTIONSDIALOG_H

 #include <QDialog>
-#include "common/config.h"
 #include "palette.h"
 #include "units.h"
-#ifdef ENABLE_TIMEZONES
 #include "timezoneinfo.h"
-#endif // ENABLE_TIMEZONES

 class ColorBox;
 class StyleComboBox;
@ -42,10 +39,9 @@ struct Options {
 	int mapOpacity;
 	QColor backgroundColor;
 	// Map
-	int projection;
-#ifdef ENABLE_HIDPI
+	int outputProjection;
+	int inputProjection;
 	bool hidpiMap;
-#endif // ENABLE_HIDPI
 	// Data
 	int elevationFilter;
 	int speedFilter;
@ -60,17 +56,13 @@ struct Options {
 	bool dataUseDEM;
 	bool showSecondaryElevation;
 	bool showSecondarySpeed;
-#ifdef ENABLE_TIMEZONES
 	TimeZoneInfo timeZone;
-#endif // ENABLE_TIMEZONES
 	bool useSegments;
 	// POI
 	int poiRadius;
 	// System
 	bool useOpenGL;
-#ifdef ENABLE_HTTP2
 	bool enableHTTP2;
-#endif // ENABLE_HTTP2
 	int pixmapCache;
 	int connectionTimeout;
 	// Print/Export
@ -129,11 +121,10 @@ private:
 	ColorBox *_sliderColor;
 	QCheckBox *_graphAA;
 	// Map
-	LimitedComboBox *_projection;
-#ifdef ENABLE_HIDPI
+	LimitedComboBox *_outputProjection;
+	LimitedComboBox *_inputProjection;
 	QRadioButton *_hidpi;
 	QRadioButton *_lodpi;
-#endif // ENABLE_HIDPI
 	// Data
 	OddSpinBox *_elevationFilter;
 	OddSpinBox *_speedFilter;
@ -151,12 +142,10 @@ private:
 	QRadioButton *_dataDEMElevation;
 	QCheckBox *_showSecondaryElevation;
 	QCheckBox *_showSecondarySpeed;
-#ifdef ENABLE_TIMEZONES
 	QRadioButton *_utcZone;
 	QRadioButton *_systemZone;
 	QRadioButton *_customZone;
 	QComboBox *_timeZone;
-#endif // ENABLE_TIMEZONES
 	QCheckBox *_useSegments;
 	// POI
 	QDoubleSpinBox *_poiRadius;
@ -164,9 +153,7 @@ private:
 	QSpinBox *_pixmapCache;
 	QSpinBox *_connectionTimeout;
 	QCheckBox *_useOpenGL;
-#ifdef ENABLE_HTTP2
 	QCheckBox *_enableHTTP2;
-#endif // ENABLE_HTTP2
 	// Print/Export
 	QRadioButton *_wysiwyg;
 	QRadioButton *_hires;
--- a/src/GUI/palette.h
+++ b/src/GUI/palette.h
@ -24,8 +24,13 @@ public:
 	  {return !(*this == other);}

 private:
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
 	qreal _h, _s, _v, _a, _shift;
 	qreal _state;
+#else // QT6
+	float _h, _s, _v, _a, _shift;
+	float _state;
+#endif // QT6
 };

 #ifndef QT_NO_DEBUG
--- a/src/GUI/pathitem.cpp
+++ b/src/GUI/pathitem.cpp
@ -6,9 +6,17 @@
 #include "map/map.h"
 #include "pathtickitem.h"
 #include "popup.h"
+#include "graphitem.h"
+#include "markeritem.h"
 #include "pathitem.h"


+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
+#define INTERSECTS intersect
+#else // QT 5.15
+#define INTERSECTS intersects
+#endif // QT 5.15
+
 #define GEOGRAPHICAL_MILE 1855.3248

 static inline bool isValid(const QPointF &p)
@ -22,12 +30,10 @@ static inline unsigned segments(qreal distance)
 }

 Units PathItem::_units = Metric;
-#ifdef ENABLE_TIMEZONES
 QTimeZone PathItem::_timeZone = QTimeZone::utc();
-#endif // ENABLE_TIMEZONES

 PathItem::PathItem(const Path &path, Map *map, QGraphicsItem *parent)
-  : GraphicsItem(parent), _path(path), _map(map)
+  : GraphicsItem(parent), _path(path), _map(map), _graph(0)
 {
 	Q_ASSERT(_path.isValid());

@ -68,14 +74,14 @@ void PathItem::addSegment(const Coordinates &c1, const Coordinates &c2)
 			QLineF l(QPointF(c1.lon(), c1.lat()), QPointF(c2.lon() + 360,
 			  c2.lat()));
 			QLineF dl(QPointF(180, -90), QPointF(180, 90));
-			l.intersect(dl, &p);
+			l.INTERSECTS(dl, &p);
 			_painterPath.lineTo(_map->ll2xy(Coordinates(180, p.y())));
 			_painterPath.moveTo(_map->ll2xy(Coordinates(-180, p.y())));
 		} else {
 			QLineF l(QPointF(c1.lon(), c1.lat()), QPointF(c2.lon() - 360,
 			  c2.lat()));
 			QLineF dl(QPointF(-180, -90), QPointF(-180, 90));
-			l.intersect(dl, &p);
+			l.INTERSECTS(dl, &p);
 			_painterPath.lineTo(_map->ll2xy(Coordinates(-180, p.y())));
 			_painterPath.moveTo(_map->ll2xy(Coordinates(180, p.y())));
 		}
@ -260,14 +266,18 @@ QPointF PathItem::position(qreal x) const
 	}
 }

-void PathItem::moveMarker(qreal distance)
+void PathItem::setMarkerPosition(qreal pos)
 {
-	_markerDistance = distance;
-	QPointF pos(position(distance));
+	qreal distance = _graph
+	  ? (_graph->graphType() == Time) ? _graph->distanceAtTime(pos) : pos
+	  : NAN;

-	if (isValid(pos)) {
+	_markerDistance = distance;
+	QPointF pp(position(distance));
+
+	if (isValid(pp)) {
 		_marker->setVisible(_showMarker);
-		_marker->setPos(pos);
+		_marker->setPos(pp);
 	} else
 		_marker->setVisible(false);
 }
@ -356,6 +366,21 @@ void PathItem::showTicks(bool show)
 	updateTicks();
 }

+void PathItem::addGraph(GraphItem *graph)
+{
+	_graphs.append(graph);
+
+	if (graph) {
+		connect(this, SIGNAL(selected(bool)), graph, SLOT(hover(bool)));
+		connect(graph, SIGNAL(selected(bool)), this, SLOT(hover(bool)));
+	}
+}
+
+void PathItem::setGraph(int index)
+{
+	_graph = _graphs.at(index);
+}
+
 void PathItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 {
 	Q_UNUSED(event);
--- a/src/GUI/pathitem.h
+++ b/src/GUI/pathitem.h
@ -1,19 +1,17 @@
 #ifndef PATHITEM_H
 #define PATHITEM_H

-#include "common/config.h"
 #include <QGraphicsObject>
 #include <QPen>
-#ifdef ENABLE_TIMEZONES
 #include <QTimeZone>
-#endif // ENABLE_TIMEZONES
 #include "data/path.h"
-#include "markeritem.h"
-#include "units.h"
 #include "graphicsscene.h"
+#include "units.h"

 class Map;
 class PathTickItem;
+class GraphItem;
+class MarkerItem;

 class PathItem : public QObject, public GraphicsItem
 {
@ -30,7 +28,10 @@ public:

 	const Path &path() const {return _path;}

+	void addGraph(GraphItem *graph);
+
 	void setMap(Map *map);
+	void setGraph(int index);

 	void setColor(const QColor &color);
 	void setWidth(qreal width);
@ -40,15 +41,14 @@ public:
 	void showMarker(bool show);
 	void showTicks(bool show);

+	void setMarkerPosition(qreal pos);
+
 	void updateTicks();

 	static void setUnits(Units units) {_units = units;}
-#ifdef ENABLE_TIMEZONES
 	static void setTimeZone(const QTimeZone &zone) {_timeZone = zone;}
-#endif // ENABLE_TIMEZONES

 public slots:
-	void moveMarker(qreal distance);
 	void hover(bool hover);

 signals:
@ -60,9 +60,7 @@ protected:
 	void mousePressEvent(QGraphicsSceneMouseEvent *event);

 	static Units _units;
-#ifdef ENABLE_TIMEZONES
 	static QTimeZone _timeZone;
-#endif // ENABLE_TIMEZONES

 private:
 	const PathSegment *segment(qreal x) const;
@ -76,6 +74,8 @@ private:

 	Path _path;
 	Map *_map;
+	QList<GraphItem *> _graphs;
+	GraphItem *_graph;
 	qreal _markerDistance;
 	int _digitalZoom;

--- a/src/GUI/pdfexportdialog.cpp
+++ b/src/GUI/pdfexportdialog.cpp
@ -24,18 +24,18 @@ PDFExportDialog::PDFExportDialog(PDFExport &exp, Units units, 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);
+	_paperSize->addItem("A2", QPageSize::PageSizeId::A2);
+	_paperSize->addItem("A3", QPageSize::PageSizeId::A3);
+	_paperSize->addItem("A4", QPageSize::PageSizeId::A4);
+	_paperSize->addItem("A5", QPageSize::PageSizeId::A5);
+	_paperSize->addItem("A6", QPageSize::PageSizeId::A6);
+	_paperSize->addItem("B3", QPageSize::PageSizeId::B3);
+	_paperSize->addItem("B4", QPageSize::PageSizeId::B4);
+	_paperSize->addItem("B5", QPageSize::PageSizeId::B5);
+	_paperSize->addItem("B6", QPageSize::PageSizeId::B6);
+	_paperSize->addItem("Tabloid", QPageSize::PageSizeId::Tabloid);
+	_paperSize->addItem("Legal", QPageSize::PageSizeId::Legal);
+	_paperSize->addItem("Letter", QPageSize::PageSizeId::Letter);
 	if ((index = _paperSize->findData(_export.paperSize)) >= 0)
 		_paperSize->setCurrentIndex(index);

@ -51,7 +51,7 @@ PDFExportDialog::PDFExportDialog(PDFExport &exp, Units units, QWidget *parent)
 	QHBoxLayout *orientationLayout = new QHBoxLayout();
 	orientationLayout->addWidget(_portrait);
 	orientationLayout->addWidget(_landscape);
-	if (_export.orientation == QPrinter::Portrait)
+	if (_export.orientation == QPageLayout::Orientation::Portrait)
 		_portrait->setChecked(true);
 	else
 		_landscape->setChecked(true);
@ -116,9 +116,9 @@ void PDFExportDialog::accept()
 		return;
 	}

-	QPrinter::Orientation orientation = _portrait->isChecked()
-	  ? QPrinter::Portrait : QPrinter::Landscape;
-	QPrinter::PaperSize paperSize = static_cast<QPrinter::PaperSize>
+	QPageLayout::Orientation orientation = _portrait->isChecked()
+	  ? QPageLayout::Orientation::Portrait : QPageLayout::Orientation::Landscape;
+	QPageSize::PageSizeId paperSize = static_cast<QPageSize::PageSizeId>
 	  (_paperSize->itemData(_paperSize->currentIndex()).toInt());
 	int resolution = _resolution->itemData(_resolution->currentIndex()).toInt();

--- a/src/GUI/pdfexportdialog.h
+++ b/src/GUI/pdfexportdialog.h
@ -3,7 +3,6 @@

 #include <QDialog>
 #include <QPrinter>
-#include "margins.h"
 #include "units.h"

 class QComboBox;
@ -14,9 +13,9 @@ class MarginsFWidget;
 struct PDFExport
 {
 	QString fileName;
-	QPrinter::PaperSize paperSize;
-	QPrinter::Orientation orientation;
-	MarginsF margins;
+	QPageSize::PageSizeId paperSize;
+	QPageLayout::Orientation orientation;
+	QMarginsF margins;
 	int resolution;
 };

--- a/src/GUI/pngexportdialog.h
+++ b/src/GUI/pngexportdialog.h
@ -3,7 +3,6 @@

 #include <QDialog>
 #include <QMargins>
-#include "margins.h"

 class FileSelectWidget;
 class MarginsWidget;
--- a/src/GUI/popup.cpp
+++ b/src/GUI/popup.cpp
@ -4,9 +4,12 @@
 #include <QStyleOptionFrame>
 #include <QLabel>
 #include <QMouseEvent>
-#include <QApplication>
-#include <QDesktopWidget>
 #include <QBasicTimer>
+#include <QScreen>
+#include <QApplication>
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
+#include <QDesktopWidget>
+#endif // QT 5.15
 #include "popup.h"


@ -36,10 +39,7 @@ PopupLabel *PopupLabel::_instance = 0;

 PopupLabel::PopupLabel(const QString &text, QWidget *parent)
  : QLabel(text, parent, Qt::ToolTip | Qt::BypassGraphicsProxyWidget
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 0, 0))
-	| Qt::WindowDoesNotAcceptFocus
-#endif // QT5
-)
+	| Qt::WindowDoesNotAcceptFocus)
 {
 	delete _instance;
 	_instance = this;
@ -74,7 +74,7 @@ void PopupLabel::paintEvent(QPaintEvent *event)
 {
 	QStylePainter p(this);
 	QStyleOptionFrame opt;
-	opt.init(this);
+	opt.initFrom(this);
 	p.drawPrimitive(QStyle::PE_PanelTipLabel, opt);
 	p.end();
 	QLabel::paintEvent(event);
@ -125,7 +125,11 @@ bool PopupLabel::eventFilter(QObject *o, QEvent *ev)

 void PopupLabel::place(const QPoint &pos, QWidget *w)
 {
+#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
 	QRect screen = QApplication::desktop()->screenGeometry(w);
+#else // QT 5.15
+	QRect screen = w->screen()->geometry();
+#endif // QT 5.15
 	QPoint p(pos.x() + 2, pos.y() + 16);

 	if (p.x() + width() > screen.x() + screen.width())
--- a/src/GUI/routeitem.cpp
+++ b/src/GUI/routeitem.cpp
@ -1,5 +1,6 @@
 #include <QPainter>
 #include "data/waypoint.h"
+#include "data/route.h"
 #include "map/map.h"
 #include "format.h"
 #include "waypointitem.h"
--- a/src/GUI/routeitem.h
+++ b/src/GUI/routeitem.h
@ -1,13 +1,11 @@
 #ifndef ROUTEITEM_H
 #define ROUTEITEM_H

-#include "data/route.h"
+#include "data/link.h"
 #include "pathitem.h"
-#include "units.h"
-#include "format.h"
-#include "graphicsscene.h"

 class Map;
+class Route;
 class WaypointItem;

 class RouteItem : public PathItem
--- a/src/GUI/scaleitem.cpp
+++ b/src/GUI/scaleitem.cpp
@ -61,9 +61,9 @@ void ScaleItem::computeScale()
 	qreal res = _res * pow(2, -_digitalZoom);

 	if (_units == Imperial) {
-		_length = niceNum((res * M2FT * SCALE_WIDTH) / SEGMENTS, true);
+		_length = Util::niceNum((res * M2FT * SCALE_WIDTH) / SEGMENTS, true);
 		if (_length >= MIINFT) {
-			_length = niceNum((res * M2MI * SCALE_WIDTH) / SEGMENTS, true);
+			_length = Util::niceNum((res * M2MI * SCALE_WIDTH) / SEGMENTS, true);
 			_width = (_length / (res * M2MI));
 			_scale = true;
 		} else {
@ -71,9 +71,9 @@ void ScaleItem::computeScale()
 			_scale = false;
 		}
 	} else if (_units == Nautical) {
-		_length = niceNum((res * M2FT * SCALE_WIDTH) / SEGMENTS, true);
+		_length = Util::niceNum((res * M2FT * SCALE_WIDTH) / SEGMENTS, true);
 		if (_length >= NMIINFT) {
-			_length = niceNum((res * M2NMI * SCALE_WIDTH) / SEGMENTS, true);
+			_length = Util::niceNum((res * M2NMI * SCALE_WIDTH) / SEGMENTS, true);
 			_width = (_length / (res * M2NMI));
 			_scale = true;
 		} else {
@ -81,7 +81,7 @@ void ScaleItem::computeScale()
 			_scale = false;
 		}
 	} else {
-		_length = niceNum((res * SCALE_WIDTH) / SEGMENTS, true);
+		_length = Util::niceNum((res * SCALE_WIDTH) / SEGMENTS, true);
 		if (_length >= KMINM) {
 			_length *= M2KM;
 			_width = (_length / (res * M2KM));
--- a/src/GUI/searchpointer.h
+++ b/src/GUI/searchpointer.h
@ -1,6 +1,8 @@
 #ifndef SEARCHPOINTER_H
 #define SEARCHPOINTER_H

+#include "common/config.h"
+
 template <class T>
 class SearchPointer
 {
@ -16,7 +18,7 @@ private:
 };

 template <class T>
-inline uint qHash(const SearchPointer<T> &t)
+inline HASH_T qHash(const SearchPointer<T> &t)
 {
 	return ::qHash(*(t.data()));
 }
--- a/src/GUI/settings.h
+++ b/src/GUI/settings.h
@ -30,8 +30,6 @@
 #define SHOW_GRAPH_GRIDS_DEFAULT          true
 #define SHOW_GRAPH_SLIDER_INFO_SETTING    "sliderInfo"
 #define SHOW_GRAPH_SLIDER_INFO_DEFAULT    true
-#define SHOW_MARKERS_SETTING              "pathMarkers"
-#define SHOW_MARKERS_DEFAULT              true
 #define SHOW_TICKS_SETTING                "pathTicks"
 #define SHOW_TICKS_DEFAULT                false

@ -65,13 +63,16 @@
 #define SHOW_ROUTE_WAYPOINTS_DEFAULT      true
 #define SHOW_WAYPOINT_LABELS_SETTING      "waypointLabels"
 #define SHOW_WAYPOINT_LABELS_DEFAULT      true
+#define SHOW_MARKERS_SETTING              "positionMarkers"
+#define SHOW_MARKERS_DEFAULT              true

 #define PDF_EXPORT_SETTINGS_GROUP         "Export"
 #define PAPER_ORIENTATION_SETTING         "orientation"
-#define PAPER_ORIENTATION_DEFAULT         QPrinter::Portrait
+#define PAPER_ORIENTATION_DEFAULT         QPageLayout::Orientation::Portrait
 #define PAPER_SIZE_SETTING                "size"
-#define PAPER_SIZE_DEFAULT                (IMPERIAL_UNITS() ? QPrinter::Letter \
-                                            : QPrinter::A4)
+#define PAPER_SIZE_DEFAULT                (IMPERIAL_UNITS() \
+	                                        ? QPageSize::PageSizeId::Letter \
+	                                        : QPageSize::PageSizeId::A4)
 #define PDF_MARGIN_LEFT_SETTING           "marginLeft"
 #define PDF_MARGIN_LEFT_DEFAULT           5 /* mm */
 #define PDF_MARGIN_TOP_SETTING            "marginTop"
@ -199,8 +200,10 @@
 #define SEPARATE_GRAPH_PAGE_DEFAULT       false
 #define SLIDER_COLOR_SETTING              "sliderColor"
 #define SLIDER_COLOR_DEFAULT              QColor(Qt::red)
-#define PROJECTION_SETTING                "projection"
-#define PROJECTION_DEFAULT                3857
+#define OUTPUT_PROJECTION_SETTING         "outputProjection"
+#define OUTPUT_PROJECTION_DEFAULT         3857
+#define INPUT_PROJECTION_SETTING          "inputProjection"
+#define INPUT_PROJECTION_DEFAULT          4326
 #define HIDPI_MAP_SETTING                 "HiDPIMap"
 #define HIDPI_MAP_DEFAULT                 true

--- a/src/GUI/sliderinfoitem.cpp
+++ b/src/GUI/sliderinfoitem.cpp
@ -18,7 +18,7 @@ void SliderInfoItem::updateBoundingRect()
 {
 	QFontMetrics fm(_font);

-	qreal width = qMax(fm.width(_x), fm.width(_y));
+	qreal width = qMax(fm.boundingRect(_x).width(), fm.boundingRect(_y).width());
 	qreal height = 2 * fm.height() - 2*fm.descent();

 	_boundingRect = (_side == Right)
@ -35,16 +35,16 @@ void SliderInfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem
 	QRectF rx, ry;


-	qreal width = qMax(fm.width(_x), fm.width(_y));
+	qreal width = qMax(fm.boundingRect(_x).width(), fm.boundingRect(_y).width());
 	if (_side == Right) {
-		ry = QRectF(SIZE, -fm.height() + fm.descent(), fm.width(_y),
+		ry = QRectF(SIZE, -fm.height() + fm.descent(), fm.boundingRect(_y).width(),
 		  fm.height() - fm.descent());
-		rx = QRectF(SIZE, 0, fm.width(_x), fm.height()
+		rx = QRectF(SIZE, 0, fm.boundingRect(_x).width(), fm.height()
 		  - fm.descent());
 	} else {
-		ry = QRectF(-(width + SIZE), -fm.height() + fm.descent(), fm.width(_y),
-		  fm.height() - fm.descent());
-		rx = QRectF(-(width + SIZE), 0, fm.width(_x), fm.height()
+		ry = QRectF(-(width + SIZE), -fm.height() + fm.descent(),
+		  fm.boundingRect(_y).width(), fm.height() - fm.descent());
+		rx = QRectF(-(width + SIZE), 0, fm.boundingRect(_x).width(), fm.height()
 		  - fm.descent());
 	}

--- a/src/GUI/timezoneinfo.h
+++ b/src/GUI/timezoneinfo.h
@ -3,6 +3,7 @@

 #include <QTimeZone>
 #include <QDataStream>
+#include <QDebug>

 class TimeZoneInfo
 {
@ -42,6 +43,7 @@ public:
 private:
 	friend QDataStream& operator<<(QDataStream &out, const TimeZoneInfo &info);
 	friend QDataStream& operator>>(QDataStream &in, TimeZoneInfo &info);
+	friend QDebug operator<<(QDebug dbg, const TimeZoneInfo &info);

 	Type _type;
 	QTimeZone _customZone;
@ -66,4 +68,12 @@ inline QDataStream &operator>>(QDataStream &in, TimeZoneInfo &info)
 	return in;
 }

+// Required in Qt6 even in release builds
+inline QDebug operator<<(QDebug dbg, const TimeZoneInfo &info)
+{
+	dbg.nospace() << "TimeZoneInfo(" << static_cast<int>(info._type)
+	  << ", " << info._customZone << ")";
+	return dbg.space();
+}
+
 #endif // TIMEZONEINFO_H
--- a/src/GUI/trackitem.cpp
+++ b/src/GUI/trackitem.cpp
@ -1,5 +1,6 @@
 #include <QPainter>
 #include "map/map.h"
+#include "data/track.h"
 #include "format.h"
 #include "tooltip.h"
 #include "trackitem.h"
@ -8,6 +9,7 @@
 QString TrackItem::info() const
 {
 	ToolTip tt;
+	QLocale l;

 	if (!_name.isEmpty())
 		tt.insert(tr("Name"), _name);
@ -22,13 +24,7 @@ QString TrackItem::info() const
 	if  (_movingTime > 0)
 		tt.insert(tr("Moving time"), Format::timeSpan(_movingTime));
 	if (!_date.isNull())
-		tt.insert(tr("Date"),
-#ifdef ENABLE_TIMEZONES
-		  _date.toTimeZone(_timeZone)
-#else // ENABLE_TIMEZONES
-		  _date
-#endif // ENABLE_TIMEZONES
-		  .toString(Qt::SystemLocaleShortDate));
+		tt.insert(tr("Date"), l.toString(_date.toTimeZone(_timeZone)));
 	if (!_links.isEmpty()) {
 		QString links;
 		for (int i = 0; i < _links.size(); i++) {
--- a/src/GUI/trackitem.h
+++ b/src/GUI/trackitem.h
@ -2,13 +2,11 @@
 #define TRACKITEM_H

 #include <QDateTime>
-#include <QPen>
-#include "data/track.h"
+#include "data/link.h"
 #include "pathitem.h"
-#include "units.h"
-#include "graphicsscene.h"

 class Map;
+class Track;

 class TrackItem : public PathItem
 {
--- a/src/GUI/waypointitem.cpp
+++ b/src/GUI/waypointitem.cpp
@ -16,13 +16,12 @@

 Units WaypointItem::_units = Metric;
 CoordinatesFormat WaypointItem::_format = DecimalDegrees;
-#ifdef ENABLE_TIMEZONES
 QTimeZone WaypointItem::_timeZone = QTimeZone::utc();
-#endif // ENABLE_TIMEZONES

 QString WaypointItem::info() const
 {
 	ToolTip tt;
+	QLocale l;

 	if (!_waypoint.name().isEmpty())
 		tt.insert(qApp->translate("WaypointItem", "Name"), _waypoint.name());
@ -37,12 +36,8 @@ QString WaypointItem::info() const
 	}
 	if (_waypoint.timestamp().isValid())
 		tt.insert(qApp->translate("WaypointItem", "Date"),
-#ifdef ENABLE_TIMEZONES
-		  _waypoint.timestamp().toTimeZone(_timeZone)
-#else // ENABLE_TIMEZONES
-		  _waypoint.timestamp()
-#endif // ENABLE_TIMEZONES
-		  .toString(Qt::SystemLocaleShortDate));
+		  l.toString(_waypoint.timestamp().toTimeZone(_timeZone),
+		  QLocale::ShortFormat));
 	if (!_waypoint.description().isEmpty())
 		tt.insert(qApp->translate("WaypointItem", "Description"),
 		  _waypoint.description());
--- a/src/GUI/waypointitem.h
+++ b/src/GUI/waypointitem.h
@ -1,13 +1,10 @@
 #ifndef WAYPOINTITEM_H
 #define WAYPOINTITEM_H

-#include "common/config.h"
 #include <cmath>
 #include <QGraphicsItem>
 #include <QFont>
-#ifdef ENABLE_TIMEZONES
 #include <QTimeZone>
-#endif // ENABLE_TIMEZONES
 #include "data/waypoint.h"
 #include "map/map.h"
 #include "units.h"
@ -38,9 +35,7 @@ public:
 	static void setUnits(Units units) {_units = units;}
 	static void setCoordinatesFormat(CoordinatesFormat format)
 	  {_format = format;}
-#ifdef ENABLE_TIMEZONES
 	static void setTimeZone(const QTimeZone &zone) {_timeZone = zone;}
-#endif // ENABLE_TIMEZONES

 protected:
 	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
@ -60,9 +55,7 @@ private:

 	static Units _units;
 	static CoordinatesFormat _format;
-#ifdef ENABLE_TIMEZONES
 	static QTimeZone _timeZone;
-#endif // ENABLE_TIMEZONES
 };

 #endif // WAYPOINTITEM_H
--- a/src/common/config.h
+++ b/src/common/config.h
@ -6,20 +6,10 @@
 #define APP_NAME        "GPXSee"
 #define APP_HOMEPAGE    "http://www.gpxsee.org"

-#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 1)
-#define ENABLE_HTTP2
-#endif // QT >= 5.10.1
-
-#if QT_VERSION >= QT_VERSION_CHECK(5, 6, 0)
-#define ENABLE_HIDPI
-#endif // QT >= 5.6
-
-#if QT_VERSION >= QT_VERSION_CHECK(5, 0, 0)
-#define ENABLE_GEOJSON
-#endif // QT >= 5.0
-
-#if QT_VERSION >= QT_VERSION_CHECK(5, 5, 0)
-#define ENABLE_TIMEZONES
-#endif // QT >= 5.5
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
+#define HASH_T uint
+#else // QT6
+#define HASH_T size_t
+#endif // QT6

 #endif /* CONFIG_H */
--- a/src/common/programpaths.cpp
+++ b/src/common/programpaths.cpp
@ -1,5 +1,6 @@
 #include <QtGlobal>
 #include <QDir>
+#include <QStandardPaths>
 #include "programpaths.h"


@ -16,119 +17,6 @@
 #define TYP_FILE         "style.typ"


-#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
-
-#include <QApplication>
-
-#if defined(Q_OS_WIN32)
-#define USER_DIR        QDir::homePath() + QString("/AppData/Roaming/") \
-						  + qApp->applicationName()
-#define GLOBAL_DIR      QApplication::applicationDirPath()
-#elif defined(Q_OS_MAC)
-#define USER_DIR        QDir::homePath() \
-						  + QString("/Library/Application Support/") \
-						  + qApp->applicationName()
-#define GLOBAL_DIR      QApplication::applicationDirPath() \
-						  + QString("/../Resources")
-#else
-#define USER_DIR        QDir::homePath() + QString("/.local/share/") \
-						  + qApp->applicationName()
-#define GLOBAL_DIR      QString(PREFIX "/share/") + qApp->applicationName()
-#endif
-
-static QString dir(const QString &dirName, bool writable = false)
-{
-	QDir userDir(QDir(USER_DIR).filePath(dirName));
-
-	if (writable || userDir.exists())
-		return userDir.absolutePath();
-	else {
-		QDir globalDir(QDir(GLOBAL_DIR).filePath(dirName));
-
-		if (globalDir.exists())
-			return globalDir.absolutePath();
-		else
-			return QString();
-	}
-}
-
-static QString file(const QString &path, const QString &fileName)
-{
-	if (path.isNull())
-		return QString();
-
-	QFileInfo fi(QDir(path).filePath(fileName));
-	return fi.exists() ? fi.absoluteFilePath() : QString();
-}
-
-QString ProgramPaths::mapDir(bool writable)
-{
-	return dir(MAP_DIR, writable);
-}
-
-QString ProgramPaths::poiDir(bool writable)
-{
-	return dir(POI_DIR, writable);
-}
-
-QString ProgramPaths::csvDir(bool writable)
-{
-	return dir(CSV_DIR, writable);
-}
-
-QString ProgramPaths::demDir(bool writable)
-{
-	return dir(DEM_DIR, writable);
-}
-
-QString ProgramPaths::styleDir(bool writable)
-{
-	return dir(STYLE_DIR, writable);
-}
-
-QString ProgramPaths::tilesDir()
-{
-#if defined(Q_OS_WIN32)
-	return QDir::homePath() + QString("/AppData/Local/")
-	  + qApp->applicationName() + QString("/cache/") + QString(TILES_DIR);
-#elif defined(Q_OS_MAC)
-	return QDir::homePath() + QString("/Library/Caches/")
-	  + qApp->applicationName() + QString("/" TILES_DIR);
-#else
-	return QDir::homePath() + QString("/.cache/") + qApp->applicationName()
-	  + QString("/" TILES_DIR);
-#endif
-}
-
-QString ProgramPaths::translationsDir()
-{
-	return dir(TRANSLATIONS_DIR);
-}
-
-QString ProgramPaths::ellipsoidsFile()
-{
-	return file(dir(CSV_DIR),  ELLIPSOID_FILE);
-}
-
-QString ProgramPaths::gcsFile()
-{
-	return file(dir(CSV_DIR), GCS_FILE);
-}
-
-QString ProgramPaths::pcsFile()
-{
-	return file(dir(CSV_DIR), PCS_FILE);
-}
-
-QString ProgramPaths::typFile()
-{
-	return file(dir(STYLE_DIR), TYP_FILE);
-}
-
-#else // QT_VERSION < 5
-
-#include <QStandardPaths>
-
 QString ProgramPaths::mapDir(bool writable)
 {
 	if (writable)
@ -214,5 +102,3 @@ QString ProgramPaths::typFile()
 	return QStandardPaths::locate(QStandardPaths::AppDataLocation,
 	  STYLE_DIR "/" TYP_FILE, QStandardPaths::LocateFile);
 }
-
-#endif // QT_VERSION < 5
--- a/src/common/staticassert.h
+++ b/src/common/staticassert.h
@ -1,11 +0,0 @@
-#ifndef ASSERT_H
-#define ASSERT_H
-
-template<bool> struct CompileTimeAssert;
-template<> struct CompileTimeAssert <true> {};
-
-#define STATIC_ASSERT(e) \
-	(CompileTimeAssert <(e) != 0>())
-
-#endif // ASSERT_H
-
--- a/src/common/textcodec.cpp
+++ b/src/common/textcodec.cpp
@ -0,0 +1,214 @@
+#include <QVector>
+#include "textcodec.h"
+
+static const char32_t cp1250[] = {
+	0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x0000, 0x2030, 0x0160, 0x2039, 0x015A, 0x0164, 0x017D, 0x0179,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0161, 0x203A, 0x015B, 0x0165, 0x017E, 0x017A,
+	0x00A0, 0x02C7, 0x02D8, 0x0141, 0x00A4, 0x0104, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x015E, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x017B,
+	0x00B0, 0x00B1, 0x02DB, 0x0142, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x0105, 0x015F, 0x00BB, 0x013D, 0x02DD, 0x013E, 0x017C,
+	0x0154, 0x00C1, 0x00C2, 0x0102, 0x00C4, 0x0139, 0x0106, 0x00C7,
+	0x010C, 0x00C9, 0x0118, 0x00CB, 0x011A, 0x00CD, 0x00CE, 0x010E,
+	0x0110, 0x0143, 0x0147, 0x00D3, 0x00D4, 0x0150, 0x00D6, 0x00D7,
+	0x0158, 0x016E, 0x00DA, 0x0170, 0x00DC, 0x00DD, 0x0162, 0x00DF,
+	0x0155, 0x00E1, 0x00E2, 0x0103, 0x00E4, 0x013A, 0x0107, 0x00E7,
+	0x010D, 0x00E9, 0x0119, 0x00EB, 0x011B, 0x00ED, 0x00EE, 0x010F,
+	0x0111, 0x0144, 0x0148, 0x00F3, 0x00F4, 0x0151, 0x00F6, 0x00F7,
+	0x0159, 0x016F, 0x00FA, 0x0171, 0x00FC, 0x00FD, 0x0163, 0x02D9
+};
+
+static const char32_t cp1251[] = {
+	0x0402, 0x0403, 0x201A, 0x0453, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x20AC, 0x2030, 0x0409, 0x2039, 0x040A, 0x040C, 0x040B, 0x040F,
+	0x0452, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0459, 0x203A, 0x045A, 0x045C, 0x045B, 0x045F,
+	0x00A0, 0x040E, 0x045E, 0x0408, 0x00A4, 0x0490, 0x00A6, 0x00A7,
+	0x0401, 0x00A9, 0x0404, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x0407,
+	0x00B0, 0x00B1, 0x0406, 0x0456, 0x0491, 0x00B5, 0x00B6, 0x00B7,
+	0x0451, 0x2116, 0x0454, 0x00BB, 0x0458, 0x0405, 0x0455, 0x0457,
+	0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
+	0x0418, 0x0419, 0x041A, 0x041B, 0x041C, 0x041D, 0x041E, 0x041F,
+	0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
+	0x0428, 0x0429, 0x042A, 0x042B, 0x042C, 0x042D, 0x042E, 0x042F,
+	0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
+	0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F,
+	0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
+	0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F
+};
+
+static const char32_t cp1252[] = {
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x017D, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x017E, 0x0178,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
+	0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
+	0x00D0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
+	0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00DE, 0x00DF,
+	0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
+	0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
+	0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF
+};
+
+static const char32_t cp1253[] = {
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x0000, 0x2030, 0x0000, 0x2039, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0000, 0x203A, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x00A0, 0x0385, 0x0386, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x0000, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x2015,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x0384, 0x00B5, 0x00B6, 0x00B7,
+	0x0388, 0x0389, 0x038A, 0x00BB, 0x038C, 0x00BD, 0x038E, 0x038F,
+	0x0390, 0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397,
+	0x0398, 0x0399, 0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F,
+	0x03A0, 0x03A1, 0x0000, 0x03A3, 0x03A4, 0x03A5, 0x03A6, 0x03A7,
+	0x03A8, 0x03A9, 0x03AA, 0x03AB, 0x03AC, 0x03AD, 0x03AE, 0x03AF,
+	0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7,
+	0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF,
+	0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7,
+	0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, 0x0000
+};
+
+static const char32_t cp1254[] = {
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0160, 0x2039, 0x0152, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0161, 0x203A, 0x0153, 0x0000, 0x0000, 0x0178,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00C6, 0x00C7,
+	0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF,
+	0x011E, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7,
+	0x00D8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x0130, 0x015E, 0x00DF,
+	0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF,
+	0x011F, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7,
+	0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x0131, 0x015F, 0x00FF
+};
+
+static const char32_t cp1255[] = {
+	0x20AC, 0x0000, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0000, 0x2039, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x02DC, 0x2122, 0x0000, 0x203A, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x20AA, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF,
+	0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7,
+	0x05B8, 0x05B9, 0x0000, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF,
+	0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05F0, 0x05F1, 0x05F2, 0x05F3,
+	0x05F4, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
+	0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7,
+	0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF,
+	0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7,
+	0x05E8, 0x05E9, 0x05EA, 0x0000, 0x0000, 0x200E, 0x200F, 0x0000
+};
+
+static const char32_t cp1256[] = {
+	0x20AC, 0x067E, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x02C6, 0x2030, 0x0679, 0x2039, 0x0152, 0x0686, 0x0698, 0x0688,
+	0x06AF, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x06A9, 0x2122, 0x0691, 0x203A, 0x0153, 0x200C, 0x200D, 0x06BA,
+	0x00A0, 0x060C, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7,
+	0x00A8, 0x00A9, 0x06BE, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00B8, 0x00B9, 0x061B, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x061F,
+	0x06C1, 0x0621, 0x0622, 0x0623, 0x0624, 0x0625, 0x0626, 0x0627,
+	0x0628, 0x0629, 0x062A, 0x062B, 0x062C, 0x062D, 0x062E, 0x062F,
+	0x0630, 0x0631, 0x0632, 0x0633, 0x0634, 0x0635, 0x0636, 0x00D7,
+	0x0637, 0x0638, 0x0639, 0x063A, 0x0640, 0x0641, 0x0642, 0x0643,
+	0x00E0, 0x0644, 0x00E2, 0x0645, 0x0646, 0x0647, 0x0648, 0x00E7,
+	0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x0649, 0x064A, 0x00EE, 0x00EF,
+	0x064B, 0x064C, 0x064D, 0x064E, 0x00F4, 0x064F, 0x0650, 0x00F7,
+	0x0651, 0x00F9, 0x0652, 0x00FB, 0x00FC, 0x200E, 0x200F, 0x06D2,
+};
+
+static const char32_t cp1257[] = {
+	0x20AC, 0x0000, 0x201A, 0x0000, 0x201E, 0x2026, 0x2020, 0x2021,
+	0x0000, 0x2030, 0x0000, 0x2039, 0x0000, 0x00A8, 0x02C7, 0x00B8,
+	0x0000, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014,
+	0x0000, 0x2122, 0x0000, 0x203A, 0x0000, 0x00AF, 0x02DB, 0x0000,
+	0x00A0, 0x0000, 0x00A2, 0x00A3, 0x00A4, 0x0000, 0x00A6, 0x00A7,
+	0x00D8, 0x00A9, 0x0156, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00C6,
+	0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7,
+	0x00F8, 0x00B9, 0x0157, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00E6,
+	0x0104, 0x012E, 0x0100, 0x0106, 0x00C4, 0x00C5, 0x0118, 0x0112,
+	0x010C, 0x00C9, 0x0179, 0x0116, 0x0122, 0x0136, 0x012A, 0x013B,
+	0x0160, 0x0143, 0x0145, 0x00D3, 0x014C, 0x00D5, 0x00D6, 0x00D7,
+	0x0172, 0x0141, 0x015A, 0x016A, 0x00DC, 0x017B, 0x017D, 0x00DF,
+	0x0105, 0x012F, 0x0101, 0x0107, 0x00E4, 0x00E5, 0x0119, 0x0113,
+	0x010D, 0x00E9, 0x017A, 0x0117, 0x0123, 0x0137, 0x012B, 0x013C,
+	0x0161, 0x0144, 0x0146, 0x00F3, 0x014D, 0x00F5, 0x00F6, 0x00F7,
+	0x0173, 0x0142, 0x015B, 0x016B, 0x00FC, 0x017C, 0x017E, 0x02D9,
+};
+
+TextCodec::TextCodec() : _table(cp1252)
+{
+
+}
+
+TextCodec::TextCodec(int codepage)
+{
+	switch (codepage) {
+		case 65001:
+			_table = 0;
+			break;
+		case 1250:
+			_table = cp1250;
+			break;
+		case 1251:
+			_table = cp1251;
+			break;
+		case 1253:
+			_table = cp1253;
+			break;
+		case 1254:
+			_table = cp1254;
+			break;
+		case 1255:
+			_table = cp1255;
+			break;
+		case 1256:
+			_table = cp1256;
+			break;
+		case 1257:
+			_table = cp1257;
+			break;
+		default:
+			_table = cp1252;
+	}
+}
+
+QString TextCodec::toString(const QByteArray &ba) const
+{
+	if (_table)
+		return from8bCp(ba);
+	else
+		return QString::fromUtf8(ba);
+}
+
+QString TextCodec::from8bCp(const QByteArray &ba) const
+{
+	QVector<char32_t> ucs4(ba.size());
+
+	for (int i = 0; i < ba.size(); i++) {
+		quint8 c = (quint8)ba.at(i);
+		if (c < 0x80)
+			ucs4[i] = (char32_t)c;
+		else
+			ucs4[i] = _table[c - 0x80];
+	}
+
+	return QString::fromUcs4(ucs4.constData(), ucs4.size());
+}
--- a/src/common/textcodec.h
+++ b/src/common/textcodec.h
@ -0,0 +1,20 @@
+#ifndef TEXTCODEC_H
+#define TEXTCODEC_H
+
+#include <QString>
+
+class TextCodec
+{
+public:
+	TextCodec();
+	TextCodec(int codepage);
+
+	QString toString(const QByteArray &ba) const;
+
+private:
+	QString from8bCp(const QByteArray &ba) const;
+
+	const char32_t *_table;
+};
+
+#endif // TEXTCODEC_H
--- a/src/common/util.cpp
+++ b/src/common/util.cpp
@ -1,9 +1,10 @@
 #include <cctype>
 #include <cmath>
+#include <QFileInfo>
 #include "util.h"


-int str2int(const char *str, int len)
+int Util::str2int(const char *str, int len)
 {
 	int res = 0;

@ -17,7 +18,7 @@ int str2int(const char *str, int len)
 	return res;
 }

-double niceNum(double x, bool round)
+double Util::niceNum(double x, bool round)
 {
 	int expv;
 	double f;
@ -48,3 +49,9 @@ double niceNum(double x, bool round)

 	return nf * pow(10.0, expv);
 }
+
+QString Util::file2name(const QString &path)
+{
+	QFileInfo fi(path);
+	return fi.baseName().replace('_', ' ');
+}
--- a/src/common/util.h
+++ b/src/common/util.h
@ -1,7 +1,13 @@
 #ifndef UTIL_H
 #define UTIL_H

-int str2int(const char *str, int len);
-double niceNum(double x, bool round);
+#include <QString>
+
+namespace Util
+{
+    int str2int(const char *str, int len);
+	double niceNum(double x, bool round);
+	QString file2name(const QString &path);
+}

 #endif // UTIL_H
--- a/src/data/data.cpp
+++ b/src/data/data.cpp
@ -2,7 +2,6 @@
 #include <QFile>
 #include <QFileInfo>
 #include <QLineF>
-#include "common/config.h"
 #include "gpxparser.h"
 #include "tcxparser.h"
 #include "csvparser.h"
@ -13,9 +12,7 @@
 #include "oziparsers.h"
 #include "locparser.h"
 #include "slfparser.h"
-#ifdef ENABLE_GEOJSON
 #include "geojsonparser.h"
-#endif // ENABLE_GEOJSON
 #include "exifparser.h"
 #include "cupparser.h"
 #include "gpiparser.h"
@ -36,9 +33,7 @@ static WPTParser wpt;
 static RTEParser rte;
 static LOCParser loc;
 static SLFParser slf;
-#ifdef ENABLE_GEOJSON
 static GeoJSONParser geojson;
-#endif // ENABLE_GEOJSON
 static EXIFParser exif;
 static CUPParser cup;
 static GPIParser gpi;
@ -60,10 +55,8 @@ static QMap<QString, Parser*> parsers()
 	map.insert("rte", &rte);
 	map.insert("loc", &loc);
 	map.insert("slf", &slf);
-#ifdef ENABLE_GEOJSON
 	map.insert("json", &geojson);
 	map.insert("geojson", &geojson);
-#endif // ENABLE_GEOJSON
 	map.insert("jpeg", &exif);
 	map.insert("jpg", &exif);
 	map.insert("cup", &cup);
@ -137,9 +130,7 @@ QString Data::formats()
 	  + qApp->translate("Data", "CSV files") + " (*.csv);;"
 	  + qApp->translate("Data", "CUP files") + " (*.cup);;"
 	  + qApp->translate("Data", "FIT files") + " (*.fit);;"
-#ifdef ENABLE_GEOJSON
 	  + qApp->translate("Data", "GeoJSON files") + " (*.geojson *.json);;"
-#endif // ENABLE_GEOJSON
 	  + qApp->translate("Data", "GPI files") + " (*.gpi);;"
 	  + qApp->translate("Data", "GPX files") + " (*.gpx);;"
 	  + qApp->translate("Data", "IGC files") + " (*.igc);;"
--- a/src/data/dem.cpp
+++ b/src/data/dem.cpp
@ -1,11 +1,21 @@
+/*
+	WARNING: This code uses internal Qt API - the QZipReader class for reading
+	ZIP files - and things may break if Qt changes the API. For Qt5 this is not
+	a problem as we can "see the future" now and there are no changes in all
+	the supported Qt5 versions up to the last one (5.15). In Qt6 the class
+	might change or even disappear in the future, but this is very unlikely
+	as there were no changes for several years and The Qt Company's policy
+	is: "do not invest any resources into any desktop related stuff unless
+	absolutely necessary". There is an issue (QTBUG-3897) since the year 2009 to
+	include the ZIP reader into the public API, which aptly illustrates the
+	effort The Qt Company is willing to make about anything desktop related...
+*/
+
 #include <QtEndian>
-#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
-#include <QtCore/qmath.h>
-#else // QT5
 #include <QtMath>
-#endif // QT5
 #include <QDir>
 #include <QFile>
+#include <private/qzipreader_p.h>
 #include "common/coordinates.h"
 #include "dem.h"

@ -59,15 +69,19 @@ static qreal height(const Coordinates &c, const QByteArray *data)
 QString DEM::_dir;
 QCache<DEM::Key, QByteArray> DEM::_data;

-QString DEM::fileName(const Key &key)
+QString DEM::baseName(const Key &key)
 {
 	const char ns = (key.lat() >= 0) ? 'N' : 'S';
 	const char ew = (key.lon() >= 0) ? 'E' : 'W';

-	QString basename = QString("%1%2%3%4.hgt").arg(ns)
+	return QString("%1%2%3%4.hgt").arg(ns)
 	  .arg(qAbs(key.lat()), 2, 10, QChar('0')).arg(ew)
 	  .arg(qAbs(key.lon()), 3, 10, QChar('0'));
-	return QDir(_dir).absoluteFilePath(basename);
+}
+
+QString DEM::fileName(const QString &baseName)
+{
+	return QDir(_dir).absoluteFilePath(baseName);
 }

 void DEM::setDir(const QString &path)
@ -84,17 +98,29 @@ qreal DEM::elevation(const Coordinates &c)

 	QByteArray *ba = _data[k];
 	if (!ba) {
-		QFile file(fileName(k));
-		if (!file.open(QIODevice::ReadOnly)) {
-			qWarning("%s: %s", qPrintable(file.fileName()),
-			  qPrintable(file.errorString()));
-			_data.insert(k, new QByteArray());
-			return NAN;
-		} else {
-			ba = new QByteArray(file.readAll());
+		QString bn(baseName(k));
+		QString fn(fileName(bn));
+		QString zn(fn + ".zip");
+
+		if (QFileInfo::exists(zn)) {
+			QZipReader zip(zn, QIODevice::ReadOnly);
+			ba = new QByteArray(zip.fileData(bn));
 			qreal ele = height(c, ba);
 			_data.insert(k, ba);
 			return ele;
+		} else {
+			QFile file(fn);
+			if (!file.open(QIODevice::ReadOnly)) {
+				qWarning("%s: %s", qPrintable(file.fileName()),
+				  qPrintable(file.errorString()));
+				_data.insert(k, new QByteArray());
+				return NAN;
+			} else {
+				ba = new QByteArray(file.readAll());
+				qreal ele = height(c, ba);
+				_data.insert(k, ba);
+				return ele;
+			}
 		}
 	} else
 		return height(c, ba);
--- a/src/data/dem.h
+++ b/src/data/dem.h
@ -4,6 +4,7 @@
 #include <QString>
 #include <QCache>
 #include <QByteArray>
+#include "common/config.h"

 class QString;
 class Coordinates;
@ -27,7 +28,8 @@ private:
 		int _lon, _lat;
 	};

-	static QString fileName(const Key &key);
+	static QString baseName(const Key &key);
+	static QString fileName(const QString &baseName);

 	static QString _dir;
 	static QCache<Key, QByteArray> _data;
@ -36,12 +38,12 @@ public:
 	static void setDir(const QString &path);
 	static qreal elevation(const Coordinates &c);

-	friend uint qHash(const Key &key);
+	friend HASH_T qHash(const Key &key);
 };

-inline uint qHash(const DEM::Key &key)
+inline HASH_T qHash(const DEM::Key &key)
 {
-	return (key.lon() ^ key.lat());
+	return (qHash(key.lon()) ^ qHash(key.lat()));
 }

 #endif // DEM_H
--- a/src/data/exifparser.cpp
+++ b/src/data/exifparser.cpp
@ -1,7 +1,7 @@
 #include <QDataStream>
-#include <QFileInfo>
 #include <QImageReader>
 #include "common/tifffile.h"
+#include "common/util.h"
 #include "exifparser.h"


@ -211,7 +211,7 @@ bool EXIFParser::parseTIFF(QFile *file, QVector<Waypoint> &waypoints)
 	ImageInfo img(file->fileName(), QImageReader(file).size());

 	Waypoint wp(c);
-	wp.setName(QFileInfo(file->fileName()).baseName());
+	wp.setName(Util::file2name(file->fileName()));
 	wp.addImage(img);
 	wp.setElevation(altitude(tiff, GPSIFD.value(GPSAltitude),
 	  GPSIFD.value(GPSAltitudeRef)));
--- a/src/data/fitparser.cpp
+++ b/src/data/fitparser.cpp
@ -1,5 +1,4 @@
 #include <QtEndian>
-#include "common/staticassert.h"
 #include "fitparser.h"


@ -174,7 +173,7 @@ bool FITParser::parseDefinitionMessage(CTX &ctx, quint8 header)
 	// definition records
 	def->fields = new Field[def->numFields];
 	for (i = 0; i < def->numFields; i++) {
-		STATIC_ASSERT(sizeof(def->fields[i]) == 3);
+		static_assert(sizeof(def->fields[i]) == 3, "Invalid Field alignment");
 		if (!readData(ctx.file, (char*)&(def->fields[i]),
 		  sizeof(def->fields[i])))
 			return false;
@ -188,7 +187,7 @@ bool FITParser::parseDefinitionMessage(CTX &ctx, quint8 header)

 		def->devFields = new Field[def->numDevFields];
 		for (i = 0; i < def->numDevFields; i++) {
-			STATIC_ASSERT(sizeof(def->devFields[i]) == 3);
+			static_assert(sizeof(def->fields[i]) == 3, "Invalid Field alignment");
 			if (!readData(ctx.file, (char*)&(def->devFields[i]),
 			  sizeof(def->devFields[i])))
 				return false;
@ -326,8 +325,8 @@ bool FITParser::parseData(CTX &ctx, const MessageDefinition *def)
 		} else if (def->globalId == COURSE_POINT) {
 			switch (field->id) {
 				case 1:
-					waypoint.setTimestamp(QDateTime::fromTime_t(val.toUInt()
-					  + 631065600));
+					waypoint.setTimestamp(QDateTime::fromSecsSinceEpoch(val.toUInt()
+					  + 631065600, Qt::UTC));
 					break;
 				case 2:
 					waypoint.rcoordinates().setLat(
@ -362,8 +361,8 @@ bool FITParser::parseData(CTX &ctx, const MessageDefinition *def)
 		}
 	} else if (def->globalId == RECORD_MESSAGE) {
 		if (ctx.trackpoint.coordinates().isValid()) {
-			ctx.trackpoint.setTimestamp(QDateTime::fromTime_t(ctx.timestamp
-			  + 631065600));
+			ctx.trackpoint.setTimestamp(QDateTime::fromSecsSinceEpoch(ctx.timestamp
+			  + 631065600, Qt::UTC));
 			ctx.trackpoint.setRatio(ctx.ratio);
 			ctx.segment.append(ctx.trackpoint);
 			ctx.trackpoint = Trackpoint();
@ -411,7 +410,7 @@ bool FITParser::parseHeader(CTX &ctx)
 	quint16 crc;
 	qint64 len;

-	STATIC_ASSERT(sizeof(hdr) == 12);
+	static_assert(sizeof(hdr) == 12, "Invalid FileHeader alignment");
 	len = ctx.file->read((char*)&hdr, sizeof(hdr));
 	if (len < 0) {
 		_errorString = "I/O error";
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Martin Tůma	51e38bf4d8	Fixed typos	2021-01-18 23:00:23 +01:00
Hosted Weblate	3b480fbd23	Merge branch 'origin/master' into Weblate.	2021-01-18 22:48:44 +01:00
99 efi	c523ddbfac	Translated using Weblate (Hungarian) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/hu/	2021-01-18 22:48:44 +01:00
Oğuz Ersen	3be4227de9	Translated using Weblate (Turkish) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/tr/	2021-01-18 22:48:44 +01:00
Åke Engelbrektson	17dbcf3e10	Translated using Weblate (Swedish) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/sv/	2021-01-18 22:48:43 +01:00
Nikolay Korotkiy	57b2f431c1	Translated using Weblate (Russian) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/ru/	2021-01-18 22:48:43 +01:00
Estébastien Robespi	52b081ea59	Translated using Weblate (French) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fr/	2021-01-18 22:48:43 +01:00
Nikolay Korotkiy	dc97061c8e	Translated using Weblate (Finnish) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fi/	2021-01-18 22:48:43 +01:00
Martin Tůma	b59e6d5d79	German translation	2021-01-18 22:48:14 +01:00
Martin Tůma	9386fa587c	Rather do not hover on the secondary graphs	2021-01-18 00:36:52 +01:00
Martin Tůma	9a459dc365	Properly handle the marker when there are multiple tracks	2021-01-18 00:18:52 +01:00
Martin Tůma	2bbf75cb0b	Localization update	2021-01-17 19:51:29 +01:00
Martin Tůma	f697c6b693	Removed unused include	2021-01-17 19:36:38 +01:00
Martin Tůma	6d8ccd2216	Unified path -> name conversion	2021-01-17 19:33:06 +01:00
Martin Tůma	3033bc680d	Includes cleanup	2021-01-17 18:39:57 +01:00
Hosted Weblate	c95e9abd65	Merge branch 'origin/master' into Weblate.	2021-01-17 16:03:30 +01:00
Martin Tůma	591560c0eb	Improved graph slider and path marker handling + related refactoring	2021-01-17 16:02:37 +01:00
Hosted Weblate	e473b5dc2d	Merge branch 'origin/master' into Weblate.	2021-01-15 06:44:46 +01:00
Martin Tůma	7217f9acfc	Cosmetics	2021-01-15 06:44:31 +01:00
Nikolay Korotkiy	8f39ce3be5	Translated using Weblate (Esperanto) Currently translated at 96.1% (371 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/eo/	2021-01-14 13:32:18 +01:00
Estébastien Robespi	fba7a0b40f	Translated using Weblate (French) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fr/	2021-01-14 13:32:17 +01:00
Hosted Weblate	fb261a1513	Merge branch 'origin/master' into Weblate.	2021-01-11 23:42:04 +01:00
Martin Tůma	925ddffba5	Remove accidently added BOM	2021-01-11 23:41:44 +01:00
Hosted Weblate	6891999139	Merge branch 'origin/master' into Weblate.	2021-01-11 23:39:17 +01:00
Martin Tůma	14a9c0a8cb	A little bit more sane binary search	2021-01-11 23:38:46 +01:00
Hosted Weblate	6103788008	Merge branch 'origin/master' into Weblate.	2021-01-11 00:31:26 +01:00
Martin Tůma	cb8c19a2bc	Yet another retype for MSVC/qt6	2021-01-11 00:30:52 +01:00
Hosted Weblate	dadf095cc1	Merge branch 'origin/master' into Weblate.	2021-01-10 16:17:41 +01:00
Martin Tůma	f4ee36a173	Silence Qt6 MSVC warning	2021-01-10 16:17:19 +01:00
Hosted Weblate	7555c89f0c	Merge branch 'origin/master' into Weblate.	2021-01-10 15:43:13 +01:00
Martin Tůma	ae1e357fb7	See if this silences MSVC2019...	2021-01-10 15:42:29 +01:00
Hosted Weblate	05e8cccb3a	Merge branch 'origin/master' into Weblate.	2021-01-10 15:21:22 +01:00
Martin Tůma	1468528a62	Try to silence some more MSVC warnings	2021-01-10 15:21:00 +01:00
Hosted Weblate	30e6f624b6	Merge branch 'origin/master' into Weblate.	2021-01-10 15:03:49 +01:00
Martin Tůma	a568efadd2	Silence MSVC warning	2021-01-10 15:03:32 +01:00
Hosted Weblate	aca258da05	Merge branch 'origin/master' into Weblate.	2021-01-10 13:24:18 +01:00
Martin Tůma	815071fc55	Use propper qHash return values on Qt6	2021-01-10 13:23:43 +01:00
Allan Nordhøy	35ff0f8d55	Translated using Weblate (Norwegian Bokmål) Currently translated at 98.4% (382 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/nb_NO/	2021-01-10 08:32:09 +01:00
Martin Tůma	7a664342b6	Yet another Qt6 NSIS fix	2021-01-09 13:30:54 +01:00
Martin Tůma	34b5323fb6	Added support for NSIS QT6 build	2021-01-09 13:06:31 +01:00
Martin Tůma	0a5480ba2c	Added AppVeyor Qt6 build	2021-01-09 11:43:59 +01:00
Martin Tůma	ef6dff42b7	Version++	2021-01-09 11:29:29 +01:00
Martin Tůma	cec8946d86	Fixed windows icons background	2021-01-06 19:27:28 +01:00
Martin Tůma	1b842ab2f0	Fixed crash on invalid KMZ maps	2021-01-05 20:56:40 +01:00
Martin Tůma	0ac6b697bb	Removed obsolete stuff	2021-01-02 22:37:56 +01:00
Hosted Weblate	4cb369d2f3	Merge branch 'origin/master' into Weblate.	2021-01-01 12:52:00 +01:00
Martin Tůma	f7b44b64b0	Fixed broken graph info layout	2021-01-01 12:51:39 +01:00
Hosted Weblate	895b2219c5	Merge branch 'origin/master' into Weblate.	2020-12-31 15:45:18 +01:00
Martin Tůma	0ec265e4ea	Version++	2020-12-31 15:45:03 +01:00
Hosted Weblate	d9e5fc6a74	Merge branch 'origin/master' into Weblate.	2020-12-31 14:03:55 +01:00
Martin Tůma	c3f345c7f9	Added support for ZIPed DEM files	2020-12-31 14:03:30 +01:00
Hosted Weblate	1f9bff6a9b	Merge branch 'origin/master' into Weblate.	2020-12-30 09:26:41 +01:00
Martin Tůma	7e39a34d0e	Fixed typo	2020-12-30 09:26:26 +01:00
Hosted Weblate	a941a7315e	Merge branch 'origin/master' into Weblate.	2020-12-29 18:36:59 +01:00
Martin Tůma	cf4f9b6f98	Fixed digital zoom on OS X	2020-12-29 18:36:23 +01:00
Hosted Weblate	3d89d0d7da	Merge branch 'origin/master' into Weblate.	2020-12-29 15:17:54 +01:00
Martin Tůma	9b3ed7ef1d	Fixed Qt6 Release build	2020-12-29 15:17:31 +01:00
Hosted Weblate	796107b1ab	Merge branch 'origin/master' into Weblate.	2020-12-29 01:05:40 +01:00
Martin Tůma	a7e9c95ba2	Updated minimal required Qt version Luckily for wretches using Debian systems, the minimal Qt version is 5.11, not 5.12	2020-12-29 01:05:36 +01:00
Hosted Weblate	cd54d2d952	Merge branch 'origin/master' into Weblate.	2020-12-28 16:09:15 +01:00
Martin Tůma	bafbb825fc	Fixed TimeZoneInfo QVariant loading/saving in QT6	2020-12-28 16:08:36 +01:00
Hosted Weblate	031ed4907c	Merge branch 'origin/master' into Weblate.	2020-12-28 14:45:51 +01:00
99 efi	7cdbad3e79	Translated using Weblate (Hungarian) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/hu/	2020-12-28 14:45:51 +01:00
Oğuz Ersen	b62ec2429a	Translated using Weblate (Turkish) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/tr/	2020-12-28 14:45:50 +01:00
Nikolay Korotkiy	10032000b1	Translated using Weblate (Russian) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/ru/	2020-12-28 14:45:50 +01:00
Nikolay Korotkiy	fd19d9c5a4	Translated using Weblate (Finnish) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fi/	2020-12-28 14:45:50 +01:00
Martin Tůma	60bb42d708	Translated missing strings	2020-12-28 14:45:25 +01:00
Martin Tůma	6201ba1c67	Cosmetics	2020-12-28 14:42:16 +01:00
Martin Tůma	85d6357cb9	Added missing HiDPI mode support	2020-12-28 14:05:51 +01:00
Martin Tůma	26cbbee135	Added KMZ mimetype	2020-12-28 11:19:44 +01:00
Martin Tůma	e200d1597d	Consistently use HTTPS	2020-12-28 11:13:40 +01:00
Martin Tůma	cd46a9cb0a	Fixed screenshots links	2020-12-28 11:11:00 +01:00
Martin Tůma	1ba1ae498c	Added Esperanto localization	2020-12-27 19:39:41 +01:00
Åke Engelbrektson	31429b6344	Translated using Weblate (Swedish) Currently translated at 100.0% (388 of 388 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/sv/	2020-12-27 06:32:19 +01:00
Hosted Weblate	5719cb5a35	Merge branch 'origin/master' into Weblate.	2020-12-27 02:49:08 +01:00
Martin Tůma	73aab44848	Localization update	2020-12-27 02:48:47 +01:00
Hosted Weblate	e2360f8fb2	Merge branch 'origin/master' into Weblate.	2020-12-27 00:16:20 +01:00
Martin Tůma	08fc8ff6c4	Fixed cut&paste error	2020-12-27 00:15:41 +01:00
Hosted Weblate	78d6ae6838	Merge branch 'origin/master' into Weblate.	2020-12-27 00:14:49 +01:00
Martin Tůma	0ae55e1511	Improved projection settings layout	2020-12-27 00:14:28 +01:00
Hosted Weblate	e0be482d65	Merge branch 'origin/master' into Weblate.	2020-12-27 00:01:23 +01:00
Martin Tůma	4f22c50510	Properly handle return values	2020-12-27 00:00:59 +01:00
Hosted Weblate	3bc5adec73	Merge branch 'origin/master' into Weblate.	2020-12-26 19:57:42 +01:00
Martin Tůma	a17110782a	Added KMZ maps info	2020-12-26 19:57:25 +01:00
Hosted Weblate	1d5f5ccffd	Merge branch 'origin/master' into Weblate.	2020-12-26 19:54:21 +01:00
Martin Tůma	e1e3800f72	Use the same icons for KML and KMZ (soon we are out of colors anyway...)	2020-12-26 19:53:23 +01:00
Hosted Weblate	a1a67fd03f	Merge branch 'origin/master' into Weblate.	2020-12-26 14:46:20 +01:00
Martin Tůma	b12eef7366	Use a better data descriptions	2020-12-26 14:45:38 +01:00
Hosted Weblate	a3071eb022	Merge branch 'origin/master' into Weblate.	2020-12-26 14:30:35 +01:00
Martin Tůma	821790fa91	Code cleanup	2020-12-26 14:30:18 +01:00
Hosted Weblate	4d0cf66925	Merge branch 'origin/master' into Weblate.	2020-12-26 00:41:13 +01:00
Nikolay Korotkiy	598d21077e	Translated using Weblate (Esperanto) Currently translated at 95.0% (367 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/eo/	2020-12-26 00:41:13 +01:00
Åke Engelbrektson	763d634934	Translated using Weblate (Swedish) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/sv/	2020-12-26 00:41:11 +01:00
Martin Tůma	336f3741d8	Cosmetics	2020-12-26 00:40:57 +01:00
Hosted Weblate	b6357cfab6	Merge branch 'origin/master' into Weblate.	2020-12-25 19:50:49 +01:00
Martin Tůma	248695ac04	Added KMZ maps info	2020-12-25 19:50:46 +01:00
Hosted Weblate	ab4944b296	Merge branch 'origin/master' into Weblate.	2020-12-25 19:48:10 +01:00
Martin Tůma	d116508d73	Added Windows and Linux KMZ desktop integration	2020-12-25 19:47:37 +01:00
Hosted Weblate	efec3ce4f4	Merge branch 'origin/master' into Weblate.	2020-12-25 18:42:28 +01:00
Nikolay Korotkiy	23c7d8e585	Translated using Weblate (Ukrainian) Currently translated at 97.9% (378 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/uk/	2020-12-25 18:42:28 +01:00
Nikolay Korotkiy	ec86692ea9	Translated using Weblate (Russian) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/ru/	2020-12-25 18:42:28 +01:00
Nikolay Korotkiy	3237146b78	Translated using Weblate (Finnish) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fi/	2020-12-25 18:42:28 +01:00
Martin Tůma	fbf81e8861	Added Esperanto localization stub	2020-12-25 18:42:12 +01:00
Martin Tůma	5bf9ee7bec	Translated using Weblate (Czech) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/cs/	2020-12-25 16:17:22 +01:00
Martin Tůma	652d6cf97c	Removed obsolete/duplicit entries	2020-12-25 16:05:51 +01:00
Martin Tůma	a36068c207	Merge remote-tracking branch 'weblate/master'	2020-12-25 16:00:01 +01:00
Allan Nordhøy	8e5fcfa0b2	Translated using Weblate (Norwegian Bokmål) Currently translated at 98.9% (382 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/nb_NO/	2020-12-25 15:12:09 +01:00
Nikolay Korotkiy	f1375fb7f8	Translated using Weblate (Finnish) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fi/	2020-12-25 15:12:09 +01:00
Martin Tůma	c98315a7b7	Updated localizations with fixed typo	2020-12-25 15:11:51 +01:00
Allan Nordhøy	b90dfc963f	Translated using Weblate (Norwegian Bokmål) Currently translated at 97.6% (377 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/nb_NO/	2020-12-25 11:08:06 +01:00
Hosted Weblate	a7bbfb0995	Merge branch 'origin/master' into Weblate.	2020-12-25 09:13:20 +01:00
Nikolay Korotkiy	eca7ca44ee	Translated using Weblate (Ukrainian) Currently translated at 97.4% (376 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/uk/	2020-12-25 09:13:20 +01:00
Nikolay Korotkiy	56a68689b4	Translated using Weblate (Russian) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/ru/	2020-12-25 09:13:20 +01:00
Nikolay Korotkiy	16e7de8a0d	Translated using Weblate (Finnish) Currently translated at 98.9% (382 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/fi/	2020-12-25 09:13:20 +01:00
Martin Tůma	977ba58570	Fixed typo	2020-12-25 09:13:11 +01:00
Oğuz Ersen	0d8e46cad0	Translated using Weblate (Turkish) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/tr/	2020-12-24 21:28:56 +01:00
99 efi	14cf94d393	Translated using Weblate (Hungarian) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/hu/	2020-12-24 21:28:55 +01:00
Åke Engelbrektson	88763ba1ca	Translated using Weblate (Swedish) Currently translated at 100.0% (386 of 386 strings) Translation: GPXSee/Translations Translate-URL: https://hosted.weblate.org/projects/gpxsee/translations/sv/	2020-12-24 21:20:47 +01:00
Martin Tůma	d74693327d	Localization update	2020-12-24 16:34:32 +01:00
Martin Tůma	dde8e9a22c	Make the source projection of JNX and KMZ maps selectable	2020-12-24 16:33:17 +01:00
Martin Tůma	50d4ca1690	Added missing devel package	2020-12-24 00:06:29 +01:00
Martin Tůma	07894f3a55	Various KMZ map fixes	2020-12-23 23:05:12 +01:00
Martin Tůma	86dd6ed772	Fixed typos	2020-12-22 22:50:46 +01:00
Martin Tůma	d01a5a7e42	Added support for KMZ maps	2020-12-22 22:32:07 +01:00
Martin Tůma	97bea8c56c	Added support for Qt6 Removed support for Qt4 and Qt5 < 5.12	2020-12-22 22:09:09 +01:00
Martin Tůma	b5972c8328	Added BSB charts support info	2020-12-16 00:25:31 +01:00
Martin Tůma	4fd0ca0b11	Added polyconic projection license info	2020-12-16 00:15:57 +01:00