Decreased outlier detection window

Update gpxsee_sv.ts

Info.plist

@@ -74,7 +74,7 @@
 			</array>
 			<key>CFBundleTypeMIMETypes</key>
 			<array>
-				<string>application/octet-stream</string>
+				<string>application/vnd.ant.fit</string>
 			</array>
 			<key>CFBundleTypeIconFile</key>
 			<string>fit.icns</string>
@@ -83,6 +83,38 @@
 			<key>CFBundleTypeRole</key>
 			<string>Viewer</string>
 		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>igc</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.fai.igc</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>igc.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>Flight Recorder Data Format</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>nmea</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/vnd.nmea.nmea</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>nmea.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>NMEA 0183 data</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
 	</array>
 
 	<key>UTImportedTypeDeclarations</key>
@@ -168,7 +200,49 @@
 					<string>fit</string>
 				</array>
 				<key>public.mime-type</key>
-				<string>application/octet-stream</string>
+				<string>application/vnd.ant.fit</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>org.fai.igc</string>
+			<key>UTTypeReferenceURL</key>
+			<string>http://www.fai.org/gnss-recording-devices/igc-approved-flight-recorders</string>
+			<key>UTTypeDescription</key>
+			<string>Flight Recorder Data Format</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>igc</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.fai.igc</string>
+			</dict>
+		</dict>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>org.nmea.nmea</string>
+			<key>UTTypeReferenceURL</key>
+			<string>http://www.nmea.org/content/nmea_standards/nmea_0183_v_410.asp</string>
+			<key>UTTypeDescription</key>
+			<string>NMEA 0183 data</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>nmea</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/vnd.nmea.nmea</string>
 			</dict>
 		</dict>
 	</array>

README.md

@@ -1,33 +1,33 @@
 # GPXSee
-GPX viewer and analyzer.
+GPXSee is a Qt-based GPS log file viewer and analyzer that supports GPX, TCX,
+KML, FIT, IGC and NMEA files.
 
-* User-definable map sources.
-* Track and elevation/speed/heart rate graphs.
+## Features
+* User-definable online maps.
+* Offline maps (OziExplorer maps and TrekBuddy maps/atlases).
+* Elevation, speed, heart rate, cadence, power and temperature graphs.
 * Support for multiple tracks in one view.
 * Support for POI files.
-* Export to PDF.
-* Full-screen mode
+* Print/export to PDF.
+* Full-screen mode.
 * Native GUI for Windows, Mac OS X and Linux.
+* Opens GPX, TCX, FIT, KML, IGC, NMEA and Garmin CSV files.
 
-![GPXSee - Linux](https://a.fsdn.com/con/app/proj/gpxsee/screenshots/linux.png)
+![GPXSee - Linux](https://a.fsdn.com/con/app/proj/gpxsee/screenshots/linux2.png)
 
 ## Build
-### Linux/OS X
 ```shell
 lrelease gpxsee.pro
 qmake gpxsee.pro
 make
 ```
-### Windows
-```shell
-lrelease gpxsee.pro
-qmake gpxsee.pro
-nmake release
-```
 
-## Binaries
-* Windows & OS X builds: http://sourceforge.net/projects/gpxsee
-* Linux packages: https://build.opensuse.org/project/repositories/home:tumic:GPXSee
+## Download
+* [Windows & OS X builds](http://sourceforge.net/projects/gpxsee)
+* [Linux packages](http://software.opensuse.org/download.html?project=home%3Atumic%3AGPXSee&package=gpxsee)
+
+## Changelog
+[Changelog](https://build.opensuse.org/package/view_file/home:tumic:GPXSee/gpxsee/gpxsee.changes)
 
 ## Homepage
 GPXSee homepage: http://tumic.wz.cz/gpxsee

build/env.bat

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

build/env64.bat

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

gpxsee.pro

@@ -1,10 +1,12 @@
 TARGET = GPXSee
-VERSION = 3.0
+VERSION = 4.8
 QT += core \
     gui \
     network
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 greaterThan(QT_MAJOR_VERSION, 4): QT += printsupport
+lessThan(QT_VERSION, 5.4): QT += opengl
+macx: QT += opengl
 HEADERS += src/config.h \
     src/icons.h \
     src/gui.h \
@@ -20,7 +22,7 @@ HEADERS += src/config.h \
     src/sliderinfoitem.h \
     src/filebrowser.h \
     src/map.h \
-    src/maplist.h \
+    src/onlinemap.h \
     src/downloader.h \
     src/units.h \
     src/scaleitem.h \
@@ -68,7 +70,31 @@ HEADERS += src/config.h \
     src/path.h \
     src/assert.h \
     src/cadencegraph.h \
-    src/powergraph.h
+    src/powergraph.h \
+    src/igcparser.h \
+    src/nmeaparser.h \
+    src/optionsdialog.h \
+    src/colorbox.h \
+    src/stylecombobox.h \
+    src/opengl.h \
+    src/timetype.h \
+    src/emptymap.h \
+    src/offlinemap.h \
+    src/matrix.h \
+    src/tar.h \
+    src/atlas.h \
+    src/projection.h \
+    src/mercator.h \
+    src/transversemercator.h \
+    src/latlon.h \
+    src/utm.h \
+    src/lambertconic.h \
+    src/ellipsoid.h \
+    src/ozf.h \
+    src/datum.h \
+    src/maplist.h \
+    src/albersequal.h \
+    src/oddspinbox.h
 SOURCES += src/main.cpp \
     src/gui.cpp \
     src/poi.cpp \
@@ -80,8 +106,7 @@ SOURCES += src/main.cpp \
     src/speedgraph.cpp \
     src/sliderinfoitem.cpp \
     src/filebrowser.cpp \
-    src/map.cpp \
-    src/maplist.cpp \
+    src/onlinemap.cpp \
     src/downloader.cpp \
     src/scaleitem.cpp \
     src/track.cpp \
@@ -116,9 +141,32 @@ SOURCES += src/main.cpp \
     src/format.cpp \
     src/graph.cpp \
     src/cadencegraph.cpp \
-    src/powergraph.cpp
+    src/powergraph.cpp \
+    src/igcparser.cpp \
+    src/path.cpp \
+    src/nmeaparser.cpp \
+    src/optionsdialog.cpp \
+    src/colorbox.cpp \
+    src/stylecombobox.cpp \
+    src/emptymap.cpp \
+    src/offlinemap.cpp \
+    src/matrix.cpp \
+    src/tar.cpp \
+    src/atlas.cpp \
+    src/mercator.cpp \
+    src/transversemercator.cpp \
+    src/utm.cpp \
+    src/lambertconic.cpp \
+    src/ellipsoid.cpp \
+    src/ozf.cpp \
+    src/datum.cpp \
+    src/maplist.cpp \
+    src/albersequal.cpp \
+    src/oddspinbox.cpp
 RESOURCES += gpxsee.qrc
-TRANSLATIONS = lang/gpxsee_cs.ts
+TRANSLATIONS = lang/gpxsee_cs.ts \
+    lang/gpxsee_sv.ts \
+    lang/gpxsee_de.ts
 macx {
     ICON = icons/gpxsee.icns
     QMAKE_INFO_PLIST = Info.plist
@@ -126,7 +174,11 @@ macx {
         icons/tcx.icns \
         icons/kml.icns \
         icons/fit.icns \
-        pkg/maps.txt
+        icons/igc.icns \
+        icons/nmea.icns \
+        pkg/maps.txt \
+        pkg/ellipsoids.csv \
+        pkg/datums.csv
     APP_RESOURCES.path = Contents/Resources
     QMAKE_BUNDLE_DATA += APP_RESOURCES
 }
@@ -135,6 +187,8 @@ win32 {
         icons/gpx.ico \
         icons/tcx.ico \
         icons/kml.ico \
-        icons/fit.ico
+        icons/fit.ico \
+        icons/igc.ico \
+        icons/nmea.ico
 }
 DEFINES += APP_VERSION=\\\"$$VERSION\\\"

gpxsee.qrc

@@ -14,7 +14,14 @@
         <file>icons/arrow-left-double.png</file>
         <file>icons/arrow-right-double.png</file>
         <file>icons/view-fullscreen.png</file>
-        <file>icons/office-chart-line-stacked.png</file>
+        <file>icons/office-chart-line.png</file>
+        <file>icons/preferences-desktop-display.png</file>
+        <file>icons/flag_48.png</file>
+        <file>icons/system-run.png</file>
+        <file>icons/document-print-preview.png</file>
+        <file>icons/view-filter.png</file>
         <file>lang/gpxsee_cs.qm</file>
+        <file>lang/gpxsee_sv.qm</file>
+        <file>lang/gpxsee_de.qm</file>
     </qresource>
 </RCC>

icons/igc.svg

@@ -0,0 +1,145 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   width="185"
+   height="185"
+   id="svg3390"
+   version="1.1">
+  <metadata
+     id="metadata3404">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs3402" />
+  <path
+     d="m 128.23996,2.2548915 -95.377018,0 0,181.0580085 134.394868,0 0,-141.313567 z m 0,0 0,39.7444415 39.01785,0"
+     id="path3392"
+     style="fill:#ffffff;stroke:#999999;stroke-width:2.18774867" />
+  <rect
+     style="fill:#ff3300;fill-opacity:1;stroke:none;stroke-width:2;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+     id="rect3426"
+     width="120.3215"
+     height="49.84631"
+     x="16.573463"
+     y="124.9782" />
+  <g
+     transform="matrix(0.89093793,0,0,0.84489692,3.5017807,-51.565424)"
+     id="g3828">
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+    </g>
+    <polyline
+       id="polyline3721"
+       points="62.3563,178.566 73.5,125.854 96,151.875 113,90.875 136.5,172.375 148.831,160.03 "
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+       id="g3723">
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+         r="7.0209999"
+         id="ellipse3727"
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+    <g
+       id="g3729">
+      <circle
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+    </g>
+    <g
+       id="g3735">
+      <circle
+         r="7.0209999"
+         id="ellipse3737"
+         cy="186.39999"
+         cx="60.700001"
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+         r="7.0209999"
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+         cy="186.39999"
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+    <g
+       id="g3741">
+      <circle
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+         cx="154.5"
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+    </g>
+    <g
+       id="g3747">
+      <circle
+         r="7.0209999"
+         id="ellipse3749"
+         cy="151.875"
+         cx="96"
+         style="fill:#000000" />
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+         r="7.0209999"
+         id="ellipse3751"
+         cy="151.875"
+         cx="96"
+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2" />
+    </g>
+  </g>
+  <text
+     xml:space="preserve"
+     style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:40px;line-height:100%;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Bold';text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+     x="40.149723"
+     y="155.86783"
+     id="text3921"
+     transform="scale(0.9437456,1.0596076)"><tspan
+       y="155.86783"
+       x="40.149723"
+       id="tspan3448">IGC</tspan></text>
+</svg>

icons/nmea.svg

@@ -0,0 +1,145 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   version="1.1"
+   id="svg3390"
+   height="185"
+   width="185">
+  <metadata
+     id="metadata3404">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs3402" />
+  <path
+     style="fill:#ffffff;stroke:#999999;stroke-width:2.18774867"
+     id="path3392"
+     d="m 128.23996,2.2548915 -95.377018,0 0,181.0580085 134.394868,0 0,-141.313567 z m 0,0 0,39.7444415 39.01785,0" />
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+    <g
+       id="g3729">
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+         cy="172.375"
+         id="ellipse3733"
+         r="7.0209999" />
+    </g>
+    <g
+       id="g3735">
+      <circle
+         style="fill:#000000"
+         cx="60.700001"
+         cy="186.39999"
+         id="ellipse3737"
+         r="7.0209999" />
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+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2"
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+    <g
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+         style="fill:none;fill-opacity:0;stroke:#000000;stroke-width:2"
+         cx="96"
+         cy="151.875"
+         id="ellipse3751"
+         r="7.0209999" />
+    </g>
+  </g>
+  <text
+     transform="scale(0.9437456,1.0596076)"
+     id="text3921"
+     y="155.86783"
+     x="21.076782"
+     style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:40px;line-height:100%;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Bold';text-align:start;letter-spacing:0px;word-spacing:0px;writing-mode:lr-tb;text-anchor:start;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
+     xml:space="preserve"><tspan
+       y="155.86783"
+       x="21.076782"
+       id="tspan3429">NMEA</tspan></text>
+</svg>

pkg/datums.csv

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

pkg/ellipsoids.csv

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

pkg/gpxsee.nsi

@@ -1,10 +1,11 @@
 !include "MUI2.nsh"
 !include "x64.nsh"
+!include "WinVer.nsh"
 
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "3.0"
+!define VERSION "4.8"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}.exe"
@@ -15,6 +16,14 @@ RequestExecutionLevel admin
 ; The default installation directory
 InstallDir "$PROGRAMFILES\GPXSee"
 
+; Installer executable info
+VIProductVersion "${VERSION}.0.0"
+VIAddVersionKey "ProductVersion" ${VERSION}
+VIAddVersionKey "FileVersion" "${VERSION}.0.0"
+VIAddVersionKey "ProductName" "GPXSee"
+VIAddVersionKey "LegalCopyright" "GPXSee project"
+VIAddVersionKey "FileDescription" "GPXSee installer"
+
 ; Registry key to check for directory (so if you install again, it will 
 ; overwrite the old one automatically)
 InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
@@ -26,6 +35,8 @@ InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
 !define REGTCX "GPXSee.tcx"
 !define REGKML "GPXSee.kml"
 !define REGFIT "GPXSee.fit"
+!define REGIGC "GPXSee.igc"
+!define REGNMEA "GPXSee.nmea"
 
 ; Start menu page configuration
 !define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKLM" 
@@ -53,9 +64,15 @@ Var StartMenuFolder
 ; Languages
 !insertmacro MUI_LANGUAGE "English"
 
+Function .onInit
+  ${IfNot} ${AtLeastWin7}
+    MessageBox MB_OK "GPXSee can only be installed on Windows 7 or later."
+    Abort
+  ${EndIf}
+FunctionEnd 
 
 ; The stuff to install
-Section "GPXSee (required)" SEC_APP
+Section "GPXSee" SEC_APP
 
   SectionIn RO
   
@@ -65,6 +82,8 @@ Section "GPXSee (required)" SEC_APP
   ; Put the files there
   File "gpxsee.exe"
   File "maps.txt"
+  File "ellipsoids.csv"
+  File "datums.csv"
 
   ; Create start menu entry and add links
   SetShellVarContext all
@@ -107,19 +126,28 @@ Section "GPXSee (required)" SEC_APP
   WriteRegStr HKCR "${REGFIT}" ""  "Flexible and Interoperable Data Transfer"
   WriteRegStr HKCR "${REGFIT}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,4"
   WriteRegStr HKCR "${REGFIT}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".igc" "" "${REGIGC}"
+  WriteRegStr HKCR "${REGIGC}" ""  "Flight Recorder Data Format"
+  WriteRegStr HKCR "${REGIGC}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,5"
+  WriteRegStr HKCR "${REGIGC}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".nmea" "" "${REGNMEA}"
+  WriteRegStr HKCR "${REGNMEA}" ""  "NMEA 0183 data"
+  WriteRegStr HKCR "${REGNMEA}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,6"
+  WriteRegStr HKCR "${REGNMEA}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
 
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
 SectionEnd
 
-Section "QT libs" SEC_QT
+Section "QT framework" SEC_QT
+
+  SectionIn RO
 
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
   File "Qt5Widgets.dll"
   File "Qt5PrintSupport.dll"
   File "Qt5Network.dll"
-  File "libGLESv2.dll"
   File /r "platforms"
   File /r "imageformats"
   File /r "printsupport"
@@ -128,6 +156,8 @@ SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
+  SectionIn RO
+
   DetailPrint "Checking whether Visual C++ 2015 Redistributable is already installed..."
   ${If} ${RunningX64}
     ReadRegDword $R0 HKLM "SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x86" "Installed"
@@ -143,10 +173,26 @@ Section "MSVC runtime" SEC_MSVC
   SetOutPath $TEMP
   File "VC_redist.x86.exe"
   ExecWait '"$TEMP/VC_redist.x86.exe" /install /quiet /norestart'
+  SetOutPath $INSTDIR
 
   done:
 SectionEnd
 
+Section "OpenSSL" SEC_OPENSSL
+
+  File "libeay32.dll"
+  File "ssleay32.dll"
+
+SectionEnd
+
+Section "ANGLE" SEC_ANGLE
+
+  File "libGLESv2.dll"
+  File "libEGL.dll"
+  File "D3DCompiler_47.dll"
+
+SectionEnd
+
 ;--------------------------------
 
 ; Uninstaller
@@ -175,6 +221,10 @@ Section "Uninstall"
   DeleteRegKey HKCR ".kml"
   DeleteRegKey HKCR "${REGFIT}"
   DeleteRegKey HKCR ".fit"
+  DeleteRegKey HKCR "${REGIGC}"
+  DeleteRegKey HKCR ".igc"
+  DeleteRegKey HKCR "${REGNMEA}"
+  DeleteRegKey HKCR ".nmea"
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'  
 
 SectionEnd
@@ -185,15 +235,21 @@ SectionEnd
 
 ;Language strings
 LangString DESC_QT ${LANG_ENGLISH} \
-  "QT Library. Unselct only if you have QT already installed!"
+  "QT cross-platform application framework."
 LangString DESC_MSVC ${LANG_ENGLISH} \
-  "Visual C++ 2015 runtime components. Unselct only if you have the runtime already installed!"
+  "Visual C++ 2015 runtime components. If already installed, will be skipped."
+LangString DESC_OPENSSL ${LANG_ENGLISH} \
+  "OpenSSL library. Required for HTTPS to work."
+LangString DESC_ANGLE ${LANG_ENGLISH} \
+  "ANGLE (OpenGL via Direct3D). Enables OpenGL on systems without native OpenGL drivers."
 LangString DESC_APP ${LANG_ENGLISH} \
   "GPXSee application"
 
 ;Assign language strings to sections
 !insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_QT} $(DESC_QT)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_OPENSSL} $(DESC_OPENSSL)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_ANGLE} $(DESC_ANGLE)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
-!insertmacro MUI_FUNCTION_DESCRIPTION_END
+!insertmacro MUI_FUNCTION_DESCRIPTION_END

pkg/gpxsee64.nsi

@@ -1,10 +1,11 @@
 !include "MUI2.nsh"
 !include "x64.nsh"
+!include "WinVer.nsh"
 
 ; The name of the installer
 Name "GPXSee"
 ; Program version
-!define VERSION "3.0"
+!define VERSION "4.8"
 
 ; The file to write
 OutFile "GPXSee-${VERSION}_x64.exe"
@@ -15,6 +16,14 @@ RequestExecutionLevel admin
 ; The default installation directory
 InstallDir "$PROGRAMFILES64\GPXSee"
 
+; Installer executable info
+VIProductVersion "${VERSION}.0.0"
+VIAddVersionKey "ProductVersion" ${VERSION}
+VIAddVersionKey "FileVersion" "${VERSION}.0.0"
+VIAddVersionKey "ProductName" "GPXSee"
+VIAddVersionKey "LegalCopyright" "GPXSee project"
+VIAddVersionKey "FileDescription" "GPXSee installer (x64)"
+
 ; Registry key to check for directory (so if you install again, it will 
 ; overwrite the old one automatically)
 InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
@@ -26,6 +35,8 @@ InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
 !define REGTCX "GPXSee.tcx"
 !define REGKML "GPXSee.kml"
 !define REGFIT "GPXSee.fit"
+!define REGIGC "GPXSee.igc"
+!define REGNMEA "GPXSee.nmea"
 
 ; Start menu page configuration
 !define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKLM" 
@@ -53,7 +64,12 @@ Var StartMenuFolder
 ; Languages
 !insertmacro MUI_LANGUAGE "English"
 
-Function .onInit  
+Function .onInit
+  ${IfNot} ${AtLeastWin7}
+    MessageBox MB_OK "GPXSee can only be installed on Windows 7 or later."
+    Abort
+  ${EndIf}
+  
   ${If} ${RunningX64}
     SetRegView 64
   ${Else}  
@@ -63,7 +79,7 @@ Function .onInit
 FunctionEnd 
 
 ; The stuff to install
-Section "GPXSee (required)" SEC_APP
+Section "GPXSee" SEC_APP
 
   SectionIn RO
   
@@ -73,6 +89,8 @@ Section "GPXSee (required)" SEC_APP
   ; Put the files there
   File "gpxsee.exe"
   File "maps.txt"
+  File "ellipsoids.csv"
+  File "datums.csv"
   
   ; Create start menu entry and add links
   SetShellVarContext all
@@ -90,7 +108,7 @@ Section "GPXSee (required)" SEC_APP
   WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
 
   ; Write the uninstall keys for Windows
-  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee (x64)"
   WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
   WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
   WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
@@ -115,19 +133,28 @@ Section "GPXSee (required)" SEC_APP
   WriteRegStr HKCR "${REGFIT}" ""  "Flexible and Interoperable Data Transfer"
   WriteRegStr HKCR "${REGFIT}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,4"
   WriteRegStr HKCR "${REGFIT}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
-
+  WriteRegStr HKCR ".igc" "" "${REGIGC}"
+  WriteRegStr HKCR "${REGIGC}" ""  "Flight Recorder Data Format"
+  WriteRegStr HKCR "${REGIGC}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,5"
+  WriteRegStr HKCR "${REGIGC}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  WriteRegStr HKCR ".nmea" "" "${REGNMEA}"
+  WriteRegStr HKCR "${REGNMEA}" ""  "NMEA 0183 data"
+  WriteRegStr HKCR "${REGNMEA}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,6"
+  WriteRegStr HKCR "${REGNMEA}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
 SectionEnd
 
-Section "QT libs" SEC_QT
+Section "QT framework" SEC_QT
+
+  SectionIn RO
 
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
   File "Qt5Widgets.dll"
   File "Qt5PrintSupport.dll"
   File "Qt5Network.dll"
-  File "libGLESv2.dll"
   File /r "platforms"
   File /r "imageformats"
   File /r "printsupport"
@@ -136,6 +163,8 @@ SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
+  SectionIn RO
+
   DetailPrint "Checking whether Visual C++ 2015 Redistributable is already installed..."
   ReadRegDword $R0 HKLM "SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64" "Installed"
   StrCmp $R0 "1" 0 +3
@@ -146,10 +175,26 @@ Section "MSVC runtime" SEC_MSVC
   SetOutPath $TEMP
   File "VC_redist.x64.exe"
   ExecWait '"$TEMP/VC_redist.x64.exe" /install /quiet /norestart'
+  SetOutPath $INSTDIR
 
   done:
 SectionEnd
 
+Section "OpenSSL" SEC_OPENSSL
+
+  File "libeay32.dll"
+  File "ssleay32.dll"
+
+SectionEnd
+
+Section "ANGLE" SEC_ANGLE
+
+  File "libGLESv2.dll"
+  File "libEGL.dll"
+  File "D3DCompiler_47.dll"
+
+SectionEnd
+
 ;--------------------------------
 
 ; Uninstaller
@@ -179,6 +224,10 @@ Section "Uninstall"
   DeleteRegKey HKCR ".kml"
   DeleteRegKey HKCR "${REGFIT}"
   DeleteRegKey HKCR ".fit"
+  DeleteRegKey HKCR "${REGIGC}"
+  DeleteRegKey HKCR ".igc"
+  DeleteRegKey HKCR "${REGNMEA}"
+  DeleteRegKey HKCR ".nmea"
   System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
 
 SectionEnd
@@ -189,15 +238,21 @@ SectionEnd
 
 ;Language strings
 LangString DESC_QT ${LANG_ENGLISH} \
-  "QT Library. Unselct only if you have QT already installed!"
+  "QT cross-platform application framework."
 LangString DESC_MSVC ${LANG_ENGLISH} \
-  "Visual C++ 2015 runtime components. Unselct only if you have the runtime already installed!"
+  "Visual C++ 2015 runtime components. If already installed, will be skipped."
+LangString DESC_OPENSSL ${LANG_ENGLISH} \
+  "OpenSSL library. Required for HTTPS to work."
+LangString DESC_ANGLE ${LANG_ENGLISH} \
+  "ANGLE (OpenGL via Direct3D). Enables OpenGL on systems without native OpenGL drivers."
 LangString DESC_APP ${LANG_ENGLISH} \
   "GPXSee application"
 
 ;Assign language strings to sections
 !insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_QT} $(DESC_QT)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_OPENSSL} $(DESC_OPENSSL)
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_ANGLE} $(DESC_ANGLE)
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_MSVC} $(DESC_MSVC) 
   !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
-!insertmacro MUI_FUNCTION_DESCRIPTION_END
+!insertmacro MUI_FUNCTION_DESCRIPTION_END

pkg/maps.txt

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

src/albersequal.cpp

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

src/albersequal.h

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

src/app.cpp

@@ -3,23 +3,28 @@
 #include <QLocale>
 #include <QFileOpenEvent>
 #include <QNetworkProxyFactory>
+#include "opengl.h"
 #include "gui.h"
+#include "onlinemap.h"
+#include "downloader.h"
 #include "app.h"
 
 
 App::App(int &argc, char **argv) : QApplication(argc, argv),
   _argc(argc), _argv(argv)
 {
-	_translator = new QTranslator();
+	QTranslator *translator = new QTranslator(this);
 
 	QString locale = QLocale::system().name();
-	_translator->load(QString(":/lang/gpxsee_") + locale);
-	installTranslator(_translator);
+	translator->load(QString(":/lang/gpxsee_") + locale);
+	installTranslator(translator);
 #ifdef Q_OS_MAC
 	setAttribute(Qt::AA_DontShowIconsInMenus);
 #endif // Q_OS_MAC
 
 	QNetworkProxyFactory::setUseSystemConfiguration(true);
+	OnlineMap::setDownloader(new Downloader(this));
+	OPENGL_SET_SAMPLES(4);
 
 	_gui = new GUI();
 }
@@ -27,7 +32,6 @@ App::App(int &argc, char **argv) : QApplication(argc, argv),
 App::~App()
 {
 	delete _gui;
-	delete _translator;
 }
 
 void App::run()

src/app.h

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

src/atlas.cpp

@@ -0,0 +1,320 @@
+#include <QDir>
+#include <QtAlgorithms>
+#include <QPainter>
+#include "tar.h"
+#include "atlas.h"
+
+
+#define ZOOM_THRESHOLD 0.9
+
+#define TL(m) ((m)->xy2pp((m)->bounds().topLeft()))
+#define BR(m) ((m)->xy2pp((m)->bounds().bottomRight()))
+
+static bool resCmp(const OfflineMap *m1, const OfflineMap *m2)
+{
+	qreal r1, r2;
+
+	r1 = m1->resolution(m1->bounds().center());
+	r2 = m2->resolution(m2->bounds().center());
+
+	return r1 > r2;
+}
+
+static bool xCmp(const OfflineMap *m1, const OfflineMap *m2)
+{
+	return TL(m1).x() < TL(m2).x();
+}
+
+static bool yCmp(const OfflineMap *m1, const OfflineMap *m2)
+{
+	return TL(m1).y() > TL(m2).y();
+}
+
+bool Atlas::isAtlas(Tar &tar, const QString &path)
+{
+	QFileInfo fi(path);
+	QByteArray ba;
+	QString suffix = fi.suffix().toLower();
+
+	if (suffix == "tar") {
+		if (!tar.load(path)) {
+			_errorString = "Error reading tar file";
+			return false;
+		}
+		QString tbaFileName = fi.completeBaseName() + ".tba";
+		ba = tar.file(tbaFileName);
+	} else if (suffix == "tba") {
+		QFile tbaFile(path);
+		if (!tbaFile.open(QIODevice::ReadOnly)) {
+			_errorString = QString("Error opening tba file: %1")
+			  .arg(tbaFile.errorString());
+			return false;
+		}
+		ba = tbaFile.readAll();
+	}
+
+	if (ba.startsWith("Atlas 1.0"))
+		return true;
+	else {
+		_errorString = "Missing or invalid tba file";
+		return false;
+	}
+}
+
+void Atlas::computeZooms()
+{
+	qSort(_maps.begin(), _maps.end(), resCmp);
+
+	_zooms.append(QPair<int, int>(0, _maps.count() - 1));
+	for (int i = 1; i < _maps.count(); i++) {
+		qreal last = _maps.at(i-1)->resolution(_maps.at(i)->bounds().center());
+		qreal cur = _maps.at(i)->resolution(_maps.at(i)->bounds().center());
+		if (cur < last * ZOOM_THRESHOLD) {
+			_zooms.last().second = i-1;
+			_zooms.append(QPair<int, int>(i, _maps.count() - 1));
+		}
+	}
+}
+
+void Atlas::computeBounds()
+{
+	QList<QPointF> offsets;
+
+	for (int i = 0; i < _maps.count(); i++)
+		offsets.append(QPointF());
+
+	for (int z = 0; z < _zooms.count(); z++) {
+		qreal w = 0, h = 0;
+
+		QList<OfflineMap*> m;
+		for (int i = _zooms.at(z).first; i <= _zooms.at(z).second; i++)
+			m.append(_maps.at(i));
+
+		qSort(m.begin(), m.end(), xCmp);
+		offsets[_maps.indexOf(m.first())].setX(w);
+		for (int i = 1; i < m.size(); i++) {
+			w += round(m.at(i-1)->pp2xy(TL(m.at(i))).x());
+			offsets[_maps.indexOf(m.at(i))].setX(w);
+		}
+
+		qSort(m.begin(), m.end(), yCmp);
+		offsets[_maps.indexOf(m.first())].setY(h);
+		for (int i = 1; i < m.size(); i++) {
+			h += round(m.at(i-1)->pp2xy(TL(m.at(i))).y());
+			offsets[_maps.indexOf(m.at(i))].setY(h);
+		}
+	}
+
+	for (int i = 0; i < _maps.count(); i++)
+		_bounds.append(QPair<QRectF, QRectF>(QRectF(TL(_maps.at(i)),
+		  BR(_maps.at(i))), QRectF(offsets.at(i), _maps.at(i)->bounds().size())));
+}
+
+Atlas::Atlas(const QString &fileName, QObject *parent) : Map(parent)
+{
+	Tar tar;
+	QFileInfo fi(fileName);
+
+	_valid = false;
+	_zoom = 0;
+	_name = fi.dir().dirName();
+	_ci = -1; _cz = -1;
+
+	if (!isAtlas(tar, fileName))
+		return;
+
+	QDir dir(fi.absolutePath());
+	QFileInfoList layers = dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
+	for (int n = 0; n < layers.count(); n++) {
+		QDir zdir(layers.at(n).absoluteFilePath());
+		QFileInfoList maps = zdir.entryInfoList(QDir::Dirs
+		  | QDir::NoDotAndDotDot);
+		for (int i = 0; i < maps.count(); i++) {
+			QString mapFile = maps.at(i).absoluteFilePath() + "/"
+			  + maps.at(i).fileName() + ".map";
+
+			OfflineMap *map;
+			if (tar.isOpen())
+				map = new OfflineMap(mapFile, tar, this);
+			else
+				map = new OfflineMap(mapFile, this);
+
+			if (map->isValid())
+				_maps.append(map);
+			else {
+				_errorString = QString("Error loading map: %1: %2")
+				  .arg(mapFile, map->errorString());
+				return;
+			}
+		}
+	}
+	if (_maps.isEmpty()) {
+		_errorString = "No maps found in atlas";
+		return;
+	}
+
+	computeZooms();
+	computeBounds();
+
+	_valid = true;
+}
+
+Atlas::~Atlas()
+{
+	for (int i = 0; i < _maps.size(); i++)
+		delete _maps.at(i);
+}
+
+QRectF Atlas::bounds() const
+{
+	QSizeF s(0, 0);
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.right() > s.width())
+			s.setWidth(_bounds.at(i).second.right());
+		if (_bounds.at(i).second.bottom() > s.height())
+			s.setHeight(_bounds.at(i).second.bottom());
+	}
+
+	return QRectF(QPointF(0, 0), s);
+}
+
+qreal Atlas::resolution(const QPointF &p) const
+{
+	int idx = _zooms.at(_zoom).first;
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.contains(_maps.at(i)->xy2pp(p))) {
+			idx = i;
+			break;
+		}
+	}
+
+	return _maps.at(idx)->resolution(p);
+}
+
+qreal Atlas::zoom() const
+{
+	return _zoom;
+}
+
+qreal Atlas::zoomFit(const QSize &size, const QRectF &br)
+{
+	_zoom = 0;
+
+	if (br.isNull()) {
+		_zoom = _zooms.size() - 1;
+		return _zoom;
+	}
+
+	for (int z = 0; z < _zooms.count(); z++) {
+		for (int i = _zooms.at(z).first; i <= _zooms.at(z).second; i++) {
+			if (!_bounds.at(i).first.contains(_maps.at(i)->ll2pp(br.center())))
+				continue;
+
+			QRect sbr = QRectF(_maps.at(i)->ll2xy(br.topLeft()),
+			  _maps.at(i)->ll2xy(br.bottomRight())).toRect().normalized();
+
+			if (sbr.size().width() > size.width()
+			  || sbr.size().height() > size.height())
+				return _zoom;
+
+			_zoom = z;
+			break;
+		}
+	}
+
+	return _zoom;
+}
+
+qreal Atlas::zoomIn()
+{
+	_zoom = qMin(_zoom + 1, _zooms.size() - 1);
+	return _zoom;
+}
+
+qreal Atlas::zoomOut()
+{
+	_zoom = qMax(_zoom - 1, 0);
+	return _zoom;
+}
+
+QPointF Atlas::ll2xy(const Coordinates &c)
+{
+	QPointF pp;
+
+	if (_cz != _zoom) {
+		_ci = -1;
+		_cz = _zoom;
+	}
+
+	if (_ci >= 0)
+		pp = _maps.at(_ci)->ll2pp(c);
+	if (_ci < 0 || !_bounds.at(_ci).first.contains(pp)) {
+		_ci = _zooms.at(_zoom).first;
+		for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+			pp = _maps.at(i)->ll2pp(c);
+			if (_bounds.at(i).first.contains(pp)) {
+				_ci = i;
+				break;
+			}
+		}
+	}
+
+	QPointF p = _maps.at(_ci)->pp2xy(pp);
+	return p + _bounds.at(_ci).second.topLeft();
+}
+
+Coordinates Atlas::xy2ll(const QPointF &p)
+{
+	int idx = _zooms.at(_zoom).first;
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).second.contains(_maps.at(i)->xy2pp(p))) {
+			idx = i;
+			break;
+		}
+	}
+
+	QPointF p2 = p - _bounds.at(idx).second.topLeft();
+	return _maps.at(idx)->xy2ll(p2);
+}
+
+void Atlas::draw(QPainter *painter, const QRectF &rect)
+{
+	// All in one map
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		QRectF ir = rect.intersected(_bounds.at(i).second);
+		if (ir == rect) {
+			draw(painter, rect, i);
+			return;
+		}
+	}
+
+	// Multiple maps
+	painter->fillRect(rect, Qt::white);
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		QRectF ir = rect.intersected(_bounds.at(i).second);
+		if (!ir.isNull())
+			draw(painter, ir, i);
+	}
+}
+
+void Atlas::draw(QPainter *painter, const QRectF &rect, int mapIndex)
+{
+	OfflineMap *map = _maps.at(mapIndex);
+	const QPointF offset = _bounds.at(mapIndex).second.topLeft();
+	QRectF pr = QRectF(rect.topLeft() - offset, rect.size());
+
+	map->load();
+
+	painter->translate(offset);
+	map->draw(painter, pr);
+	painter->translate(-offset);
+}
+
+void Atlas::unload()
+{
+	for (int i = 0; i < _maps.count(); i++)
+		_maps.at(i)->unload();
+}

src/atlas.h

@@ -0,0 +1,55 @@
+#ifndef ATLAS_H
+#define ATLAS_H
+
+#include <QFileInfoList>
+#include "map.h"
+#include "offlinemap.h"
+
+
+class Atlas : public Map
+{
+	Q_OBJECT
+
+public:
+	Atlas(const QString &fileName, QObject *parent = 0);
+	~Atlas();
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const;
+	qreal zoomFit(const QSize &size, const QRectF &br);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c);
+	Coordinates xy2ll(const QPointF &p);
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void unload();
+
+	bool isValid() const {return _valid;}
+	const QString &errorString() const {return _errorString;}
+
+private:
+	void draw(QPainter *painter, const QRectF &rect, int mapIndex);
+	bool isAtlas(Tar &tar, const QString &path);
+	void computeZooms();
+	void computeBounds();
+
+	QString _name;
+	bool _valid;
+	QString _errorString;
+
+	QList<OfflineMap*> _maps;
+	QVector<QPair<int, int> > _zooms;
+	QVector<QPair<QRectF, QRectF> > _bounds;
+	int _zoom;
+
+	int _ci, _cz;
+};
+
+#endif // ATLAS_H

src/colorbox.cpp

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

src/colorbox.h

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

src/config.h

@@ -13,7 +13,10 @@
 #define FONT_SIZE       12
 #define SCREEN_DPI      96.0
 
+#define ELLIPSOID_FILE  QString("ellipsoids.csv")
+#define DATUM_FILE      QString("datums.csv")
 #define MAP_FILE        QString("maps.txt")
+#define MAP_DIR         QString("maps")
 #define POI_DIR         QString("POI")
 
 #if defined(Q_OS_WIN32)
@@ -28,10 +31,16 @@
 #define GLOBAL_DIR      QString("/usr/share/gpxsee")
 #endif
 
-#define USER_MAP_FILE   USER_DIR + QString("/") + MAP_FILE
-#define USER_POI_DIR    USER_DIR + QString("/") + POI_DIR
-#define GLOBAL_MAP_FILE GLOBAL_DIR + QString("/") + MAP_FILE
-#define GLOBAL_POI_DIR  GLOBAL_DIR + QString("/") + POI_DIR
-#define TILES_DIR       USER_DIR + QString("/tiles")
+#define USER_ELLIPSOID_FILE    USER_DIR + QString("/") + ELLIPSOID_FILE
+#define USER_DATUM_FILE        USER_DIR + QString("/") + DATUM_FILE
+#define USER_MAP_DIR           USER_DIR + QString("/") + MAP_DIR
+#define USER_MAP_FILE          USER_DIR + QString("/") + MAP_FILE
+#define USER_POI_DIR           USER_DIR + QString("/") + POI_DIR
+#define GLOBAL_ELLIPSOID_FILE  GLOBAL_DIR + QString("/") + ELLIPSOID_FILE
+#define GLOBAL_DATUM_FILE      GLOBAL_DIR + QString("/") + DATUM_FILE
+#define GLOBAL_MAP_DIR         GLOBAL_DIR + QString("/") + MAP_DIR
+#define GLOBAL_MAP_FILE        GLOBAL_DIR + QString("/") + MAP_FILE
+#define GLOBAL_POI_DIR         GLOBAL_DIR + QString("/") + POI_DIR
+#define TILES_DIR              USER_DIR + QString("/tiles")
 
 #endif /* CONFIG_H */

src/coordinates.cpp

@@ -2,6 +2,10 @@
 #include "wgs84.h"
 #include "coordinates.h"
 
+#define MIN_LAT deg2rad(-90.0)
+#define MAX_LAT deg2rad(90.0)
+#define MIN_LON deg2rad(-180.0)
+#define MAX_LON deg2rad(180.0)
 
 qreal Coordinates::distanceTo(const Coordinates &c) const
 {
@@ -13,25 +17,39 @@ qreal Coordinates::distanceTo(const Coordinates &c) const
 	return (WGS84_RADIUS * (2.0 * atan2(sqrt(a), sqrt(1.0 - a))));
 }
 
-QPointF Coordinates::toMercator() const
-{
-	return QPointF(_lon, rad2deg(log(tan(M_PI/4.0 + deg2rad(_lat)/2.0))));
-}
-
-Coordinates Coordinates::fromMercator(const QPointF &m)
-{
-	return Coordinates(m.x(), rad2deg(2 * atan(exp(deg2rad(m.y()))) - M_PI/2));
-}
-
-bool operator==(const Coordinates &c1, const Coordinates &c2)
-{
-	return (c1.lat() == c2.lat() && c1.lon() == c2.lon());
-}
-
 QDebug operator<<(QDebug dbg, const Coordinates &coordinates)
 {
 	dbg.nospace() << "Coordinates(" << coordinates.lon() << ", "
 	  << coordinates.lat() << ")";
 
-	return dbg.maybeSpace();
+	return dbg.space();
+}
+
+QPair<Coordinates, Coordinates> Coordinates::boundingRect(qreal distance) const
+{
+	qreal radDist = distance / WGS84_RADIUS;
+
+	qreal minLat = deg2rad(_lat) - radDist;
+	qreal maxLat = deg2rad(_lat) + radDist;
+
+	qreal minLon, maxLon;
+	if (minLat > MIN_LAT && maxLat < MAX_LAT) {
+		qreal deltaLon = asin(sin(radDist) / cos(_lat));
+		minLon = deg2rad(_lon) - deltaLon;
+		if (minLon < MIN_LON)
+			minLon += 2.0 * M_PI;
+		maxLon = deg2rad(_lon) + deltaLon;
+		if (maxLon > MAX_LON)
+			maxLon -= 2.0 * M_PI;
+	} else {
+		// a pole is within the distance
+		minLat = qMax(minLat, MIN_LAT);
+		maxLat = qMin(maxLat, MAX_LAT);
+		minLon = MIN_LON;
+		maxLon = MAX_LON;
+	}
+
+	return QPair<Coordinates, Coordinates>(Coordinates(rad2deg(qMin(minLon,
+	  maxLon)), rad2deg(qMin(minLat, maxLat))), Coordinates(rad2deg(qMax(minLon,
+	  maxLon)), rad2deg(qMax(minLat, maxLat))));
 }

src/coordinates.h

@@ -12,6 +12,9 @@ public:
 	Coordinates(const Coordinates &c) {_lon = c._lon; _lat = c._lat;}
 	Coordinates(qreal lon, qreal lat) {_lon = lon; _lat = lat;}
 
+	Coordinates(const QPointF &p) {_lon = p.x(), _lat = p.y();}
+	QPointF toPointF() const {return QPointF(_lon, _lat);}
+
 	qreal &rlon() {return _lon;}
 	qreal &rlat() {return _lat;}
 	void setLon(qreal lon) {_lon = lon;}
@@ -26,15 +29,16 @@ public:
 		&& _lat <= 90.0) ? true : false;}
 
 	qreal distanceTo(const Coordinates &c) const;
-
-	QPointF toMercator() const;
-	static Coordinates fromMercator(const QPointF &m);
+	QPair<Coordinates, Coordinates> boundingRect(qreal distance) const;
 
 private:
 	qreal _lat, _lon;
 };
 
-bool operator==(const Coordinates &c1, const Coordinates &c2);
+inline bool operator==(const Coordinates &c1, const Coordinates &c2)
+  {return (c1.lat() == c2.lat() && c1.lon() == c2.lon());}
+inline bool operator!=(const Coordinates &c1, const Coordinates &c2)
+  {return !(c1 == c2);}
 QDebug operator<<(QDebug dbg, const Coordinates &trackpoint);
 
 #endif // COORDINATES_H

src/csvparser.cpp

@@ -3,9 +3,8 @@
 bool CSVParser::loadFile(QFile *file)
 {
 	bool res;
-	int ln = 1;
 
-	_errorLine = 0;
+	_errorLine = 1;
 	_errorString.clear();
 
 	while (!file->atEnd()) {
@@ -13,20 +12,17 @@ bool CSVParser::loadFile(QFile *file)
 		QList<QByteArray> list = line.split(',');
 		if (list.size() < 3) {
 			_errorString = "Parse error";
-			_errorLine = ln;
 			return false;
 		}
 
 		qreal lat = list[0].trimmed().toDouble(&res);
 		if (!res || (lat < -90.0 || lat > 90.0)) {
 			_errorString = "Invalid latitude";
-			_errorLine = ln;
 			return false;
 		}
 		qreal lon = list[1].trimmed().toDouble(&res);
 		if (!res || (lon < -180.0 || lon > 180.0)) {
 			_errorString = "Invalid longitude";
-			_errorLine = ln;
 			return false;
 		}
 		Waypoint wp(Coordinates(lon, lat));
@@ -41,7 +37,7 @@ bool CSVParser::loadFile(QFile *file)
 		}
 
 		_waypoints.append(wp);
-		ln++;
+		_errorLine++;
 	}
 
 	return true;

src/data.cpp

@@ -6,6 +6,8 @@
 #include "csvparser.h"
 #include "kmlparser.h"
 #include "fitparser.h"
+#include "igcparser.h"
+#include "nmeaparser.h"
 #include "data.h"
 
 
@@ -21,6 +23,10 @@ Data::Data() : _errorLine(0)
 	  _waypointData));
 	_parsers.insert("csv", new CSVParser(_trackData, _routeData,
 	  _waypointData));
+	_parsers.insert("igc", new IGCParser(_trackData, _routeData,
+	  _waypointData));
+	_parsers.insert("nmea", new NMEAParser(_trackData, _routeData,
+	  _waypointData));
 }
 
 Data::~Data()
@@ -76,9 +82,9 @@ bool Data::loadFile(const QString &fileName)
 			file.reset();
 		}
 
-		fprintf(stderr, "Error loading data file: %s:\n", qPrintable(fileName));
+		qWarning("Error loading data file: %s:\n", qPrintable(fileName));
 		for (it = _parsers.begin(); it != _parsers.end(); it++)
-			fprintf(stderr, "%s: line %d: %s\n", qPrintable(it.key()),
+			qWarning("%s: line %d: %s\n", qPrintable(it.key()),
 			  it.value()->errorLine(), qPrintable(it.value()->errorString()));
 
 		_errorLine = 0;

src/datum.cpp

@@ -0,0 +1,83 @@
+#include <QFile>
+#include "wgs84.h"
+#include "datum.h"
+
+
+static QMap<QString, Datum> WGS84()
+{
+	QMap<QString, Datum> map;
+	map.insert("WGS 84", Datum(Ellipsoid(WGS84_RADIUS, WGS84_FLATTENING),
+	  0, 0, 0));
+	return map;
+}
+
+QMap<QString, Datum> Datum::_datums = WGS84();
+QString Datum::_errorString;
+int Datum::_errorLine = 0;
+
+Datum Datum::datum(const QString &name)
+{
+	QMap<QString, Datum>::const_iterator it = _datums.find(name);
+
+	if (it == _datums.end())
+		return Datum();
+
+	return it.value();
+}
+
+bool Datum::loadList(const QString &path)
+{
+	QFile file(path);
+	bool res;
+
+	if (!file.open(QFile::ReadOnly)) {
+		_errorString = qPrintable(file.errorString());
+		return false;
+	}
+
+	_errorLine = 1;
+	_errorString.clear();
+
+	while (!file.atEnd()) {
+		QByteArray line = file.readLine();
+		QList<QByteArray> list = line.split(',');
+		if (list.size() != 6) {
+			_errorString = "Format error";
+			return false;
+		}
+
+		int eid = list[2].trimmed().toInt(&res);
+		if (!res) {
+			_errorString = "Invalid ellipsoid id";
+			return false;
+		}
+		double dx = list[3].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid dx";
+			return false;
+		}
+		double dy = list[4].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid dy";
+			return false;
+		}
+		double dz = list[5].trimmed().toDouble(&res);
+		if (!res) {
+			_errorString = "Invalid dz";
+			return false;
+		}
+
+		Ellipsoid e = Ellipsoid::ellipsoid(eid);
+		if (e.isNull()) {
+			_errorString = "Unknown ellipsoid ID";
+			return false;
+		}
+
+		Datum d(e, dx, dy, dz);
+		_datums.insert(list[0].trimmed(), d);
+
+		_errorLine++;
+	}
+
+	return true;
+}

src/datum.h

@@ -0,0 +1,38 @@
+#ifndef DATUM_H
+#define DATUM_H
+
+#include <QMap>
+#include "ellipsoid.h"
+
+class Datum
+{
+public:
+	Datum() : _ellipsoid(Ellipsoid()), _dx(0), _dy(0), _dz(0) {}
+	Datum(const Ellipsoid &ellipsoid, double dx, double dy, double dz)
+	  : _ellipsoid(ellipsoid), _dx(dx), _dy(dy), _dz(dz) {}
+
+	const Ellipsoid &ellipsoid() const {return _ellipsoid;}
+	double dx() const {return _dx;}
+	double dy() const {return _dy;}
+	double dz() const {return _dz;}
+
+	bool isNull() const {return _ellipsoid.isNull();}
+	bool isWGS84() const
+	  {return _ellipsoid.isWGS84() && _dx == 0 && _dy == 0 && _dz == 0;}
+
+	static bool loadList(const QString &path);
+	static const QString &errorString() {return _errorString;}
+	static int errorLine() {return _errorLine;}
+
+	static Datum datum(const QString &name);
+
+private:
+	Ellipsoid _ellipsoid;
+	double _dx, _dy, _dz;
+
+	static QMap<QString, Datum> _datums;
+	static QString _errorString;
+	static int _errorLine;
+};
+
+#endif // DATUM_H

src/downloader.cpp

@@ -1,5 +1,7 @@
 #include <QFile>
 #include <QFileInfo>
+#include <QNetworkRequest>
+#include <QNetworkReply>
 #include "config.h"
 #include "downloader.h"
 
@@ -17,25 +19,39 @@
 #define USER_AGENT \
 	APP_NAME "/" APP_VERSION " (" PLATFORM_STR "; Qt " QT_VERSION_STR ")"
 
-Downloader::Downloader()
+#define ATTR_REDIRECT QNetworkRequest::RedirectionTargetAttribute
+#define ATTR_FILE     QNetworkRequest::User
+#define ATTR_ORIGIN   (QNetworkRequest::Attribute)(QNetworkRequest::User + 1)
+#define ATTR_LEVEL    (QNetworkRequest::Attribute)(QNetworkRequest::User + 2)
+
+#define MAX_REDIRECT_LEVEL 5
+
+
+Downloader::Downloader(QObject *parent) : QObject(parent)
 {
 	connect(&_manager, SIGNAL(finished(QNetworkReply*)),
 			SLOT(downloadFinished(QNetworkReply*)));
 }
 
-bool Downloader::doDownload(const Download &dl)
+bool Downloader::doDownload(const Download &dl, const Redirect &redirect)
 {
 	QUrl url(dl.url());
 
 	if (_errorDownloads.contains(url))
 		return false;
+	if (_currentDownloads.contains(url))
+		return false;
 
 	QNetworkRequest request(url);
-	request.setAttribute(QNetworkRequest::User, QVariant(dl.file()));
+	request.setAttribute(ATTR_FILE, QVariant(dl.file()));
+	if (!redirect.isNull()) {
+		request.setAttribute(ATTR_ORIGIN, QVariant(redirect.origin()));
+		request.setAttribute(ATTR_LEVEL, QVariant(redirect.level()));
+	}
 	request.setRawHeader("User-Agent", USER_AGENT);
 	QNetworkReply *reply = _manager.get(request);
 
-	_currentDownloads.append(reply);
+	_currentDownloads.insert(url, reply);
 
 	return true;
 }
@@ -45,7 +61,7 @@ bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
 	QFile file(filename);
 
 	if (!file.open(QIODevice::WriteOnly)) {
-		fprintf(stderr, "Error writing map tile: %s: %s\n",
+		qWarning("Error writing map tile: %s: %s\n",
 		  qPrintable(filename), qPrintable(file.errorString()));
 		return false;
 	}
@@ -58,26 +74,49 @@ bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
 
 void Downloader::downloadFinished(QNetworkReply *reply)
 {
-	QUrl url = reply->url();
+	QUrl url = reply->request().url();
+
 	if (reply->error()) {
-		_errorDownloads.insert(url);
-		fprintf(stderr, "Error downloading map tile: %s: %s\n",
-		  url.toEncoded().constData(), qPrintable(reply->errorString()));
+		QUrl origin = reply->request().attribute(ATTR_ORIGIN).toUrl();
+		if (origin.isEmpty()) {
+			_errorDownloads.insert(url);
+			qWarning("Error downloading map tile: %s: %s\n",
+			  url.toEncoded().constData(), qPrintable(reply->errorString()));
+		} else {
+			_errorDownloads.insert(origin);
+			qWarning("Error downloading map tile: %s -> %s: %s\n",
+			  origin.toEncoded().constData(), url.toEncoded().constData(),
+			  qPrintable(reply->errorString()));
+		}
 	} else {
-		QUrl redirect = reply->attribute(
-		  QNetworkRequest::RedirectionTargetAttribute).toUrl();
-		QString filename = reply->request().attribute(QNetworkRequest::User)
+		QUrl location = reply->attribute(ATTR_REDIRECT).toUrl();
+		QString filename = reply->request().attribute(ATTR_FILE)
 		  .toString();
 
-		if (!redirect.isEmpty()) {
-			Download dl(redirect, filename);
-			doDownload(dl);
+		if (!location.isEmpty()) {
+			QUrl origin = reply->request().attribute(ATTR_ORIGIN).toUrl();
+			int level = reply->request().attribute(ATTR_LEVEL).toInt();
+
+			if (location == url) {
+				_errorDownloads.insert(url);
+				qWarning("Error downloading map tile: %s: "
+				  "redirect loop\n", url.toEncoded().constData());
+			} else if (level >= MAX_REDIRECT_LEVEL) {
+				_errorDownloads.insert(origin);
+				qWarning("Error downloading map tile: %s: "
+				  "redirect level limit reached\n",
+				  origin.toEncoded().constData());
+			} else {
+				Redirect redirect(origin.isEmpty() ? url : origin, level + 1);
+				Download dl(location, filename);
+				doDownload(dl, redirect);
+			}
 		} else
 			if (!saveToDisk(filename, reply))
 				_errorDownloads.insert(url);
 	}
 
-	_currentDownloads.removeAll(reply);
+	_currentDownloads.remove(url);
 	reply->deleteLater();
 
 	if (_currentDownloads.isEmpty())

src/downloader.h

@@ -2,13 +2,14 @@
 #define DOWNLOADER_H
 
 #include <QNetworkAccessManager>
-#include <QNetworkRequest>
-#include <QNetworkReply>
 #include <QUrl>
 #include <QList>
+#include <QMap>
 #include <QSet>
 
 
+class QNetworkReply;
+
 class Download
 {
 public:
@@ -28,8 +29,8 @@ class Downloader : public QObject
 	Q_OBJECT
 
 public:
-	static Downloader& instance()
-		{static Downloader i; return i;}
+	Downloader(QObject *parent = 0);
+
 	bool get(const QList<Download> &list);
 
 signals:
@@ -39,15 +40,28 @@ private slots:
 	void downloadFinished(QNetworkReply *reply);
 
 private:
-	Downloader();
-	Downloader(Downloader const&);
-	void operator=(Downloader const&);
+	class Redirect
+	{
+	public:
+		Redirect() : _level(0) {}
+		Redirect(const QUrl &origin, int level) :
+		  _origin(origin), _level(level) {}
 
-	bool doDownload(const Download &dl);
+		const QUrl &origin() const {return _origin;}
+		int level() const {return _level;}
+
+		bool isNull() const {return (_level == 0);}
+
+	private:
+		QUrl _origin;
+		int _level;
+	};
+
+	bool doDownload(const Download &dl, const Redirect &redirect = Redirect());
 	bool saveToDisk(const QString &filename, QIODevice *data);
 
 	QNetworkAccessManager _manager;
-	QList<QNetworkReply *> _currentDownloads;
+	QMap<QUrl, QNetworkReply *> _currentDownloads;
 	QSet<QUrl> _errorDownloads;
 };
 

src/ellipsoid.cpp

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

src/ellipsoid.h

@@ -0,0 +1,37 @@
+#ifndef ELLIPSOID_H
+#define ELLIPSOID_H
+
+#include <QString>
+#include <QMap>
+#include "wgs84.h"
+
+class Ellipsoid
+{
+public:
+	Ellipsoid() : _radius(-1.0), _flattening(-1.0) {}
+	Ellipsoid(double radius, double flattening)
+	  : _radius(radius), _flattening(flattening) {}
+
+	double radius() const {return _radius;}
+	double flattening() const {return _flattening;}
+
+	bool isNull() const {return _radius < 0 || _flattening < 0;}
+	bool isWGS84() const
+	  {return _radius == WGS84_RADIUS && _flattening == WGS84_FLATTENING;}
+
+	static bool loadList(const QString &path);
+	static const QString &errorString() {return _errorString;}
+	static int errorLine() {return _errorLine;}
+
+	static Ellipsoid ellipsoid(int id);
+
+private:
+	double _radius;
+	double _flattening;
+
+	static QMap<int, Ellipsoid> _ellipsoids;
+	static QString _errorString;
+	static int _errorLine;
+};
+
+#endif // ELLIPSOID_H

src/emptymap.cpp

@@ -0,0 +1,77 @@
+#include <QtGlobal>
+#include <QPainter>
+#include "misc.h"
+#include "rd.h"
+#include "wgs84.h"
+#include "coordinates.h"
+#include "mercator.h"
+#include "emptymap.h"
+
+
+#define SCALE_MIN 0.5
+#define SCALE_MAX 1.0E-6
+
+EmptyMap::EmptyMap(QObject *parent) : Map(parent)
+{
+	_scale = SCALE_MAX;
+}
+
+QRectF EmptyMap::bounds() const
+{
+	return scaled(QRectF(QPointF(-180, -180), QSizeF(360, 360)), 1.0/_scale);
+}
+
+qreal EmptyMap::zoomFit(const QSize &size, const QRectF &br)
+{
+	if (br.isNull())
+		_scale = SCALE_MAX;
+	else {
+		Coordinates topLeft(br.topLeft());
+		Coordinates bottomRight(br.bottomRight());
+		QRectF tbr(Mercator().ll2xy(topLeft), Mercator().ll2xy(bottomRight));
+
+		QPointF sc(tbr.width() / size.width(), tbr.height() / size.height());
+
+		_scale = qMax(sc.x(), sc.y());
+	}
+
+	_scale = qMax(_scale, SCALE_MAX);
+	_scale = qMin(_scale, SCALE_MIN);
+
+	return _scale;
+}
+
+qreal EmptyMap::resolution(const QPointF &p) const
+{
+	return (WGS84_RADIUS * 2 * M_PI * _scale / 360.0
+	  * cos(2.0 * atan(exp(deg2rad(-p.y() * _scale))) - M_PI/2));
+}
+
+qreal EmptyMap::zoomIn()
+{
+	_scale = qMax(_scale / 2.0, SCALE_MAX);
+	return _scale;
+}
+
+qreal EmptyMap::zoomOut()
+{
+	_scale = qMin(_scale * 2.0, SCALE_MIN);
+	return _scale;
+}
+
+void EmptyMap::draw(QPainter *painter, const QRectF &rect)
+{
+	painter->fillRect(rect, Qt::white);
+}
+
+QPointF EmptyMap::ll2xy(const Coordinates &c)
+{
+	QPointF m = Mercator().ll2xy(c);
+	return QPointF(m.x() / _scale, m.y() / -_scale);
+}
+
+Coordinates EmptyMap::xy2ll(const QPointF &p)
+{
+	QPointF m(p.x() * _scale, -p.y() * _scale);
+	return Mercator().xy2ll(m);
+}

src/emptymap.h

@@ -0,0 +1,33 @@
+#ifndef EMPTYMAP_H
+#define EMPTYMAP_H
+
+#include "map.h"
+
+class EmptyMap : public Map
+{
+	Q_OBJECT
+
+public:
+	EmptyMap(QObject *parent = 0);
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const {return _scale;}
+	qreal zoomFit(const QSize &size, const QRectF &br);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c);
+	Coordinates xy2ll(const QPointF &p);
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+private:
+	QString _name;
+	qreal _scale;
+};
+
+#endif // EMPTYMAP_H

src/exportdialog.cpp

@@ -11,23 +11,19 @@
 #include <QMessageBox>
 #include <QTabWidget>
 #include <QDoubleSpinBox>
-#include <QLocale>
 #include "fileselectwidget.h"
 #include "units.h"
 #include "exportdialog.h"
 
 
-ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
-  : QDialog(parent), _printer(printer)
+ExportDialog::ExportDialog(Export *exp, QWidget *parent)
+  : QDialog(parent), _export(exp)
 {
 	int index;
 
-	_units = (QLocale::system().measurementSystem()
-	  == QLocale::ImperialSystem) ? QPrinter::Inch : QPrinter::Millimeter;
-
 	_fileSelect = new FileSelectWidget();
 	_fileSelect->setFilter(tr("PDF files (*.pdf);;All files (*)"));
-	_fileSelect->setFile(_printer->outputFileName());
+	_fileSelect->setFile(_export->fileName);
 
 	_paperSize = new QComboBox();
 	_paperSize->addItem("A3", QPrinter::A3);
@@ -36,7 +32,7 @@ ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
 	_paperSize->addItem("Tabloid", QPrinter::Tabloid);
 	_paperSize->addItem("Legal", QPrinter::Legal);
 	_paperSize->addItem("Letter", QPrinter::Letter);
-	if ((index = _paperSize->findData(_printer->paperSize())) >= 0)
+	if ((index = _paperSize->findData(_export->paperSize)) >= 0)
 		_paperSize->setCurrentIndex(index);
 
 	_portrait = new QRadioButton(tr("Portrait"));
@@ -44,32 +40,34 @@ ExportDialog::ExportDialog(QPrinter *printer, QWidget *parent)
 	QHBoxLayout *orientationLayout = new QHBoxLayout();
 	orientationLayout->addWidget(_portrait);
 	orientationLayout->addWidget(_landscape);
-	if (_printer->orientation() == QPrinter::Portrait)
+	if (_export->orientation == QPrinter::Portrait)
 		_portrait->setChecked(true);
 	else
 		_landscape->setChecked(true);
 
-	qreal top, bottom, left, right;
-
-	_printer->getPageMargins(&left, &top, &right, &bottom, _units);
-	QString us = _units == QPrinter::Inch ? tr("in") : tr("mm");
 	_topMargin = new QDoubleSpinBox();
 	_bottomMargin = new QDoubleSpinBox();
 	_leftMargin = new QDoubleSpinBox();
 	_rightMargin = new QDoubleSpinBox();
-	_topMargin->setValue(top);
+	QString us = (_export->units == Imperial) ? tr("in") : tr("mm");
 	_topMargin->setSuffix(UNIT_SPACE + us);
-	_bottomMargin->setValue(bottom);
 	_bottomMargin->setSuffix(UNIT_SPACE + us);
-	_leftMargin->setValue(left);
 	_leftMargin->setSuffix(UNIT_SPACE + us);
-	_rightMargin->setValue(right);
 	_rightMargin->setSuffix(UNIT_SPACE + us);
-	if (_units == QPrinter::Inch) {
+	if (_export->units == Imperial) {
+		_topMargin->setValue(_export->margins.top() * MM2IN);
+		_bottomMargin->setValue(_export->margins.bottom() * MM2IN);
+		_leftMargin->setValue(_export->margins.left() * MM2IN);
+		_rightMargin->setValue(_export->margins.right() * MM2IN);
 		_topMargin->setSingleStep(0.1);
 		_bottomMargin->setSingleStep(0.1);
 		_leftMargin->setSingleStep(0.1);
 		_rightMargin->setSingleStep(0.1);
+	} else {
+		_topMargin->setValue(_export->margins.top());
+		_bottomMargin->setValue(_export->margins.bottom());
+		_leftMargin->setValue(_export->margins.left());
+		_rightMargin->setValue(_export->margins.right());
 	}
 
 	QGridLayout *marginsLayout = new QGridLayout();
@@ -164,12 +162,16 @@ void ExportDialog::accept()
 	QPrinter::PaperSize paperSize = static_cast<QPrinter::PaperSize>
 	  (_paperSize->itemData(_paperSize->currentIndex()).toInt());
 
-	_printer->setOutputFormat(QPrinter::PdfFormat);
-	_printer->setOutputFileName(_fileSelect->file());
-	_printer->setPaperSize(paperSize);
-	_printer->setOrientation(orientation);
-	_printer->setPageMargins(_leftMargin->value(), _topMargin->value(),
-	  _rightMargin->value(), _bottomMargin->value(), _units);
+	_export->fileName = _fileSelect->file();
+	_export->paperSize = paperSize;
+	_export->orientation = orientation;
+	if (_export->units == Imperial)
+		_export->margins = MarginsF(_leftMargin->value() / MM2IN,
+		_topMargin->value() / MM2IN, _rightMargin->value() / MM2IN,
+		_bottomMargin->value() / MM2IN);
+	else
+		_export->margins = MarginsF(_leftMargin->value(), _topMargin->value(),
+		  _rightMargin->value(), _bottomMargin->value());
 
 	QDialog::accept();
 }

src/exportdialog.h

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

src/fitparser.cpp

@@ -14,6 +14,11 @@ FITParser::FITParser(QList<TrackData> &tracks, QList<RouteData> &routes,
   QList<Waypoint> &waypoints) : Parser(tracks, routes, waypoints)
 {
 	memset(_defs, 0, sizeof(_defs));
+
+	_device = 0;
+	_endian = 0;
+	_timestamp = 0;
+	_len = 0;
 }
 
 void FITParser::clearDefinitions()
@@ -31,8 +36,7 @@ void FITParser::clearDefinitions()
 void FITParser::warning(const char *text) const
 {
 	const QFile *file = static_cast<QFile *>(_device);
-	fprintf(stderr, "%s:%d: %s\n", qPrintable(file->fileName()),
-	  _len, text);
+	qWarning("%s:%d: %s\n", qPrintable(file->fileName()), _len, text);
 }
 
 bool FITParser::readData(char *data, size_t size)
@@ -335,10 +339,11 @@ bool FITParser::parseHeader()
 
 bool FITParser::loadFile(QFile *file)
 {
+	bool ret = true;
+
 	_device = file;
 	_endian = 0;
 	_timestamp = 0;
-	bool ret = true;
 
 	if (!parseHeader())
 		return false;

src/graph.cpp

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

src/graph.h

@@ -29,24 +29,8 @@ private:
 };
 
 Q_DECLARE_TYPEINFO(GraphPoint, Q_PRIMITIVE_TYPE);
-QDebug operator<<(QDebug dbg, const GraphPoint &graphpoint);
+QDebug operator<<(QDebug dbg, const GraphPoint &point);
 
-
-class Graph : public QVector<GraphPoint>
-{
-public:
-	Graph() : QVector<GraphPoint>() {_time = true;}
-	void append(const GraphPoint &p)
-	{
-		if (std::isnan(p.t()))
-			_time = false;
-		QVector<GraphPoint>::append(p);
-	}
-
-	bool hasTime() const {return _time;}
-
-private:
-	bool _time;
-};
+typedef QVector<GraphPoint> Graph;
 
 #endif // GRAPH_H

src/graphitem.cpp

@@ -2,20 +2,28 @@
 #include "graphitem.h"
 
 
-#define GRAPH_WIDTH 1
-#define HOVER_WIDTH 2
-
 GraphItem::GraphItem(const Graph &graph, QGraphicsItem *parent)
   : QGraphicsObject(parent)
 {
 	_id = 0;
+	_width = 1;
 
-	_pen = QPen(Qt::black, GRAPH_WIDTH);
+	_pen = QPen(Qt::black, _width);
 
 	_type = Distance;
 	_graph = graph;
 	_sx = 1.0; _sy = 1.0;
 
+	_time = true;
+	for (int i = 0; i < _graph.size(); i++) {
+		if (std::isnan(_graph.at(i).t())) {
+			_time = false;
+			break;
+		}
+	}
+
+	setZValue(1.0);
+
 	updatePath();
 	updateBounds();
 }
@@ -51,6 +59,14 @@ void GraphItem::setColor(const QColor &color)
 	update();
 }
 
+void GraphItem::setWidth(int width)
+{
+	prepareGeometryChange();
+
+	_width = width;
+	_pen.setWidth(width);
+}
+
 qreal GraphItem::yAtX(qreal x)
 {
 	int low = 0;
@@ -116,13 +132,13 @@ qreal GraphItem::distanceAtTime(qreal time)
 void GraphItem::emitSliderPositionChanged(qreal pos)
 {
 	if (_type == Time) {
-		if (_graph.hasTime()) {
-			if (pos <= _graph.last().t())
+		if (_time) {
+			if (pos >= _graph.first().t() && pos <= _graph.last().t())
 				emit sliderPositionChanged(distanceAtTime(pos));
 			else
-				emit sliderPositionChanged(_graph.last().s() + 1);
+				emit sliderPositionChanged(NAN);
 		} else
-			emit sliderPositionChanged(_graph.last().s() + 1);
+			emit sliderPositionChanged(NAN);
 	} else
 		emit sliderPositionChanged(pos);
 }
@@ -130,10 +146,10 @@ void GraphItem::emitSliderPositionChanged(qreal pos)
 void GraphItem::selected(bool selected)
 {
 	if (selected) {
-		_pen.setWidth(HOVER_WIDTH);
+		_pen.setWidth(_width + 1);
 		setZValue(zValue() + 1.0);
 	} else {
-		_pen.setWidth(GRAPH_WIDTH);
+		_pen.setWidth(_width);
 		setZValue(zValue() - 1.0);
 	}
 
@@ -155,7 +171,7 @@ void GraphItem::updatePath()
 {
 	_path = QPainterPath();
 
-	if (_type == Time && !_graph.hasTime())
+	if (_type == Time && !_time)
 		return;
 
 	_path.moveTo(_graph.first().x(_type) * _sx, -_graph.first().y() * _sy);
@@ -165,7 +181,7 @@ void GraphItem::updatePath()
 
 void GraphItem::updateBounds()
 {
-	if (_type == Time && !_graph.hasTime()) {
+	if (_type == Time && !_time) {
 		_bounds = QRectF();
 		return;
 	}

src/graphitem.h

@@ -24,6 +24,7 @@ public:
 	int id() const {return _id;}
 	void setId(int id) {_id = id;}
 	void setColor(const QColor &color);
+	void setWidth(int width);
 
 	qreal yAtX(qreal x);
 	qreal distanceAtTime(qreal time);
@@ -41,6 +42,7 @@ private:
 
 	int _id;
 	QPen _pen;
+	int _width;
 
 	Graph _graph;
 	GraphType _type;
@@ -48,6 +50,8 @@ private:
 	QPainterPath _path;
 	QRectF _bounds;
 	qreal _sx, _sy;
+
+	bool _time;
 };
 
 #endif // GRAPHITEM_H

src/graphtab.h

@@ -4,6 +4,7 @@
 #include <QList>
 #include "graphview.h"
 #include "units.h"
+#include "timetype.h"
 
 class Data;
 class PathItem;
@@ -18,10 +19,11 @@ public:
 
 	virtual QString label() const = 0;
 	virtual void loadData(const Data &data, const QList<PathItem *> &paths) = 0;
-	virtual void clear() = 0;
-	virtual void setUnits(enum Units units) = 0;
-	virtual void showTracks(bool show) = 0;
-	virtual void showRoutes(bool show) = 0;
+	virtual void clear() {}
+	virtual void setUnits(enum Units units) {Q_UNUSED(units)}
+	virtual void setTimeType(enum TimeType type) {Q_UNUSED(type)}
+	virtual void showTracks(bool show) {Q_UNUSED(show)}
+	virtual void showRoutes(bool show) {Q_UNUSED(show)}
 };
 
 #endif // GRAPHTAB_H

src/graphview.cpp

@@ -3,6 +3,7 @@
 #include <QMouseEvent>
 #include <QPaintEngine>
 #include <QPaintDevice>
+#include "opengl.h"
 #include "config.h"
 #include "axisitem.h"
 #include "slideritem.h"
@@ -20,26 +21,31 @@
 GraphView::GraphView(QWidget *parent)
 	: QGraphicsView(parent)
 {
-	_scene = new QGraphicsScene();
+	_scene = new QGraphicsScene(this);
 	setScene(_scene);
 
+	setBackgroundBrush(QBrush(Qt::white));
+	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+	setRenderHint(QPainter::Antialiasing, true);
 	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 
 	_xAxis = new AxisItem(AxisItem::X);
-	_xAxis->setZValue(1.0);
+	_xAxis->setZValue(2.0);
 	_yAxis = new AxisItem(AxisItem::Y);
-	_yAxis->setZValue(1.0);
+	_yAxis->setZValue(2.0);
 	_slider = new SliderItem();
-	_slider->setZValue(2.0);
+	_slider->setZValue(3.0);
 	_sliderInfo = new SliderInfoItem(_slider);
-	_sliderInfo->setZValue(2.0);
+	_sliderInfo->setZValue(3.0);
 	_info = new InfoItem();
 	_grid = new GridItem();
 
 	connect(_slider, SIGNAL(positionChanged(const QPointF&)), this,
 	  SLOT(emitSliderPositionChanged(const QPointF&)));
 
+	_width = 1;
+
 	_xScale = 1;
 	_yScale = 1;
 	_yOffset = 0;
@@ -169,7 +175,8 @@ void GraphView::loadGraph(const Graph &graph, PathItem *path, int id)
 	GraphItem *gi = new GraphItem(graph);
 	gi->setGraphType(_graphType);
 	gi->setId(id);
-	gi->setColor(_palette.color());
+	gi->setColor(_palette.nextColor());
+	gi->setWidth(_width);
 
 	connect(this, SIGNAL(sliderPositionChanged(qreal)), gi,
 	  SLOT(emitSliderPositionChanged(qreal)));
@@ -400,6 +407,8 @@ void GraphView::emitSliderPositionChanged(const QPointF &pos)
 		return;
 
 	_sliderPos = (pos.x() / _slider->area().width()) * bounds().width();
+	_sliderPos = qMax(_sliderPos, bounds().left());
+	_sliderPos = qMin(_sliderPos, bounds().right());
 	updateSliderPosition();
 
 	emit sliderPositionChanged(_sliderPos);
@@ -429,3 +438,28 @@ void GraphView::clearInfo()
 {
 	_info->clear();
 }
+
+void GraphView::setPalette(const Palette &palette)
+{
+	_palette = palette;
+	_palette.reset();
+
+	for (int i = 0; i < _graphs.count(); i++)
+		_graphs.at(i)->setColor(_palette.nextColor());
+}
+
+void GraphView::setGraphWidth(int width)
+{
+	_width = width;
+
+	for (int i = 0; i < _graphs.count(); i++)
+		_graphs.at(i)->setWidth(width);
+}
+
+void GraphView::useOpenGL(bool use)
+{
+	if (use)
+		setViewport(new OPENGL_WIDGET);
+	else
+		setViewport(new QWidget);
+}

src/graphview.h

@@ -35,6 +35,9 @@ public:
 	void setUnits(Units units);
 	void showGrid(bool show);
 
+	void setPalette(const Palette &palette);
+	void setGraphWidth(int width);
+
 	const QString &yLabel() const {return _yLabel;}
 	const QString &yUnits() const {return _yUnits;}
 	qreal yScale() const {return _yScale;}
@@ -52,6 +55,8 @@ public:
 
 	void plot(QPainter *painter, const QRectF &target);
 
+	void useOpenGL(bool use);
+
 signals:
 	void sliderPositionChanged(qreal);
 
@@ -60,7 +65,7 @@ protected:
 	void redraw(const QSizeF &size);
 	void addInfo(const QString &key, const QString &value);
 	void clearInfo();
-	void skipColor() {_palette.color();}
+	void skipColor() {_palette.nextColor();}
 
 private slots:
 	void emitSliderPositionChanged(const QPointF &pos);
@@ -99,6 +104,7 @@ private:
 	QSet<int> _hide;
 	QRectF _bounds;
 	Palette _palette;
+	int _width;
 
 	Units _units;
 	GraphType _graphType;

src/griditem.cpp

@@ -6,7 +6,9 @@
 
 GridItem::GridItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
-
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
 }
 
 void GridItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,

src/gui.h

@@ -7,9 +7,12 @@
 #include <QDate>
 #include <QPrinter>
 #include "units.h"
+#include "timetype.h"
 #include "graph.h"
 #include "poi.h"
-#include "margins.h"
+#include "exportdialog.h"
+#include "optionsdialog.h"
+
 
 class QMenu;
 class QToolBar;
@@ -23,13 +26,14 @@ class FileBrowser;
 class GraphTab;
 class PathView;
 class Map;
+class MapList;
 
 class GUI : public QMainWindow
 {
 	Q_OBJECT
 
 public:
-	GUI(QWidget *parent = 0);
+	GUI();
 	~GUI();
 
 	bool openFile(const QString &fileName);
@@ -45,16 +49,17 @@ private slots:
 	void reloadFile();
 	void openPOIFile();
 	void closePOIFiles();
-	void showMap(bool show);
 	void showGraphs(bool show);
 	void showGraphGrids(bool show);
 	void showToolbars(bool show);
 	void showFullscreen(bool show);
 	void showTracks(bool show);
 	void showRoutes(bool show);
+	void loadMap();
 	void clearMapCache();
 	void nextMap();
 	void prevMap();
+	void openOptions();
 
 	void mapChanged(int);
 	void graphChanged(int);
@@ -65,6 +70,8 @@ private slots:
 	void last();
 	void first();
 
+	void setTotalTime() {setTimeType(Total);}
+	void setMovingTime() {setTimeType(Moving);}
 	void setMetricUnits() {setUnits(Metric);}
 	void setImperialUnits() {setUnits(Imperial);}
 	void setDistanceGraph() {setGraphType(Distance);}
@@ -75,6 +82,7 @@ private slots:
 private:
 	typedef QPair<QDate, QDate> DateRange;
 
+	void loadDatums();
 	void loadMaps();
 	void loadPOIs();
 	void closeFiles();
@@ -100,11 +108,15 @@ private:
 	void updateGraphTabs();
 	void updatePathView();
 
+	TimeType timeType() const;
+	Units units() const;
+	void setTimeType(TimeType type);
 	void setUnits(Units units);
 	void setGraphType(GraphType type);
 
 	qreal distance() const;
 	qreal time() const;
+	qreal movingTime() const;
 	int mapIndex(const QString &name);
 	void readSettings();
 	void writeSettings();
@@ -120,9 +132,11 @@ private:
 	QToolBar *_showToolBar;
 	QToolBar *_navigationToolBar;
 	QMenu *_poiFilesMenu;
+	QMenu *_mapMenu;
 
 	QActionGroup *_fileActionGroup;
 	QActionGroup *_navigationActionGroup;
+	QActionGroup *_mapsActionGroup;
 	QAction *_exitAction;
 	QAction *_keysAction;
 	QAction *_dataSourcesAction;
@@ -140,6 +154,7 @@ private:
 	QAction *_showPOILabelsAction;
 	QAction *_showMapAction;
 	QAction *_fullscreenAction;
+	QAction *_loadMapAction;
 	QAction *_clearMapCacheAction;
 	QAction *_showGraphsAction;
 	QAction *_showGraphGridAction;
@@ -152,6 +167,8 @@ private:
 	QAction *_firstAction;
 	QAction *_metricUnitsAction;
 	QAction *_imperialUnitsAction;
+	QAction *_totalTimeAction;
+	QAction *_movingTimeAction;
 	QAction *_nextMapAction;
 	QAction *_prevMapAction;
 	QAction *_showTracksAction;
@@ -159,10 +176,13 @@ private:
 	QAction *_showWaypointsAction;
 	QAction *_showWaypointLabelsAction;
 	QAction *_showRouteWaypointsAction;
+	QAction *_openOptionsAction;
+	QAction *_mapsEnd;
 	QList<QAction*> _mapActions;
 	QList<QAction*> _poiFilesActions;
 
-	QSignalMapper *_poiFilesSM;
+	QSignalMapper *_poiFilesSignalMapper;
+	QSignalMapper *_mapsSignalMapper;
 
 	QLabel *_fileNameLabel;
 	QLabel *_distanceLabel;
@@ -173,29 +193,29 @@ private:
 	QList<GraphTab*> _tabs;
 
 	POI *_poi;
-	QList<Map*> _maps;
+	MapList *_ml;
 
 	FileBrowser *_browser;
 	QList<QString> _files;
-	Map *_currentMap;
 
+	Map *_map;
 	int _trackCount;
 	int _routeCount;
 	int _waypointCount;
 	qreal _trackDistance;
 	qreal _routeDistance;
 	qreal _time;
+	qreal _movingTime;
 	DateRange _dateRange;
+	QString _pathName;
 
 	qreal _sliderPos;
 
 	int _frameStyle;
 	bool _showGraphs;
 
-	QString _exportFileName;
-	QPrinter::PaperSize _exportPaperSize;
-	QPrinter::Orientation _exportOrientation;
-	MarginsF _exportMargins;
+	Export _export;
+	Options _options;
 };
 
 #endif // GUI_H

src/heartrategraph.h

@@ -13,9 +13,7 @@ public:
 	QString label() const {return tr("Heart rate");}
 	void loadData(const Data &data, const QList<PathItem *> &paths);
 	void clear();
-	void setUnits(enum Units) {}
 	void showTracks(bool show);
-	void showRoutes(bool show) {Q_UNUSED(show);}
 
 private:
 	qreal avg() const;

src/icons.h

@@ -1,20 +1,29 @@
 #ifndef ICONS_H
 #define ICONS_H
 
-#define APP_ICON         ":/icons/gpxsee.png"
-#define OPEN_FILE_ICON   ":/icons/document-open.png"
-#define EXPORT_FILE_ICON ":/icons/document-export.png"
-#define PRINT_FILE_ICON  ":/icons/document-print.png"
-#define CLOSE_FILE_ICON  ":/icons/dialog-close.png"
-#define SHOW_POI_ICON    ":/icons/flag.png"
-#define SHOW_MAP_ICON    ":/icons/applications-internet.png"
-#define SHOW_GRAPHS_ICON ":/icons/office-chart-line-stacked.png"
-#define QUIT_ICON        ":/icons/application-exit.png"
-#define RELOAD_FILE_ICON ":/icons/view-refresh.png"
-#define NEXT_FILE_ICON   ":/icons/arrow-right.png"
-#define PREV_FILE_ICON   ":/icons/arrow-left.png"
-#define LAST_FILE_ICON   ":/icons/arrow-right-double.png"
-#define FIRST_FILE_ICON  ":/icons/arrow-left-double.png"
-#define FULLSCREEN_ICON  ":/icons/view-fullscreen.png"
+#define APP_ICON          ":/icons/gpxsee.png"
+
+// Toolbar/menu icons
+#define OPEN_FILE_ICON    ":/icons/document-open.png"
+#define EXPORT_FILE_ICON  ":/icons/document-export.png"
+#define PRINT_FILE_ICON   ":/icons/document-print.png"
+#define CLOSE_FILE_ICON   ":/icons/dialog-close.png"
+#define SHOW_POI_ICON     ":/icons/flag.png"
+#define SHOW_MAP_ICON     ":/icons/applications-internet.png"
+#define SHOW_GRAPHS_ICON  ":/icons/office-chart-line.png"
+#define QUIT_ICON         ":/icons/application-exit.png"
+#define RELOAD_FILE_ICON  ":/icons/view-refresh.png"
+#define NEXT_FILE_ICON    ":/icons/arrow-right.png"
+#define PREV_FILE_ICON    ":/icons/arrow-left.png"
+#define LAST_FILE_ICON    ":/icons/arrow-right-double.png"
+#define FIRST_FILE_ICON   ":/icons/arrow-left-double.png"
+#define FULLSCREEN_ICON   ":/icons/view-fullscreen.png"
+
+// Options dialog icons
+#define APPEARANCE_ICON   ":/icons/preferences-desktop-display.png"
+#define POI_ICON          ":/icons/flag_48.png"
+#define SYSTEM_ICON       ":/icons/system-run.png"
+#define PRINT_EXPORT_ICON ":/icons/document-print-preview.png"
+#define DATA_ICON         ":/icons/view-filter.png"
 
 #endif /* ICONS_H */

src/igcparser.cpp

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

src/igcparser.h

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

src/infoitem.cpp

@@ -7,7 +7,9 @@
 
 InfoItem::InfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
-
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
 }
 
 void InfoItem::updateBoundingRect()
@@ -76,6 +78,7 @@ void InfoItem::insert(const QString &key, const QString &value)
 		_list[i] = kv;
 
 	updateBoundingRect();
+	update();
 }
 
 void InfoItem::clear()

src/keys.h

@@ -10,18 +10,22 @@
 #define LAST_KEY                Qt::Key_End
 #define MODIFIER                Qt::ShiftModifier
 
-#define QUIT_SHORTCUT           QKeySequence::Quit
-#define OPEN_SHORTCUT           QKeySequence::Open
-#define CLOSE_SHORTCUT          QKeySequence::Close
-#define RELOAD_SHORTCUT         QKeySequence::Refresh
+#define ZOOM_IN                 QKeySequence::ZoomIn
+#define ZOOM_OUT                QKeySequence::ZoomOut
+
+#define QUIT_SHORTCUT           QKeySequence(QKeySequence::Quit)
+#define OPEN_SHORTCUT           QKeySequence(QKeySequence::Open)
+#define CLOSE_SHORTCUT          QKeySequence(QKeySequence::Close)
+#define RELOAD_SHORTCUT         QKeySequence(QKeySequence::Refresh)
 #define EXPORT_SHORTCUT         QKeySequence(Qt::CTRL + Qt::Key_E)
 #define SHOW_POI_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_P)
 #define SHOW_MAP_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_M)
-#define NEXT_MAP_SHORTCUT       QKeySequence::Forward
-#define PREV_MAP_SHORTCUT       QKeySequence::Back
+#define NEXT_MAP_SHORTCUT       QKeySequence(QKeySequence::Forward)
+#define PREV_MAP_SHORTCUT       QKeySequence(QKeySequence::Back)
 #define SHOW_GRAPHS_SHORTCUT    QKeySequence(Qt::CTRL + Qt::Key_G)
 #define DISTANCE_GRAPH_SHORTCUT QKeySequence(Qt::CTRL + Qt::Key_D)
 #define TIME_GRAPH_SHORTCUT     QKeySequence(Qt::CTRL + Qt::Key_T)
+
 #ifdef Q_OS_MAC
 #define FULLSCREEN_SHORTCUT     QKeySequence(Qt::META + Qt::CTRL + Qt::Key_F)
 #else // Q_OS_MAC

src/kmlparser.cpp

@@ -87,7 +87,7 @@ bool KMLParser::pointCoordinates(Waypoint &waypoint)
 
 	for (vp = cp; cp <= ep; cp++) {
 		if (*cp == ',') {
-			if (c > 2)
+			if (c > 1)
 				return false;
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
@@ -145,7 +145,7 @@ bool KMLParser::lineCoordinates(TrackData &track)
 
 	for (vp = cp; cp <= ep; cp++) {
 		if (*cp == ',') {
-			if (c > 2)
+			if (c > 1)
 				return false;
 
 #if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
@@ -225,7 +225,7 @@ void KMLParser::point(Waypoint &waypoint)
 		_reader.raiseError("Missing Point coordinates");
 }
 
-void KMLParser::Track(TrackData &track)
+void KMLParser::track(TrackData &track)
 {
 	const char mismatchError[] = "gx:coord/when element count mismatch";
 	int i = track.size();
@@ -251,6 +251,28 @@ void KMLParser::Track(TrackData &track)
 		_reader.raiseError(mismatchError);
 }
 
+void KMLParser::multiGeometry(const QString &name, const QString &desc,
+  const QDateTime timestamp)
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "Point") {
+			_waypoints.append(Waypoint());
+			Waypoint &w = _waypoints.last();
+			w.setName(name);
+			w.setDescription(desc);
+			w.setTimestamp(timestamp);
+			point(w);
+		} else if (_reader.name() == "LineString") {
+			_tracks.append(TrackData());
+			TrackData &t = _tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			lineString(t);
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
 void KMLParser::placemark()
 {
 	QString name, desc;
@@ -263,25 +285,27 @@ void KMLParser::placemark()
 			desc = _reader.readElementText();
 		else if (_reader.name() == "TimeStamp")
 			timestamp = timeStamp();
+		else if (_reader.name() == "MultiGeometry")
+			multiGeometry(name, desc, timestamp);
 		else if (_reader.name() == "Point") {
 			_waypoints.append(Waypoint());
-			Waypoint &waypoint = _waypoints.last();
-			waypoint.setName(name);
-			waypoint.setDescription(desc);
-			waypoint.setTimestamp(timestamp);
-			point(waypoint);
+			Waypoint &w = _waypoints.last();
+			w.setName(name);
+			w.setDescription(desc);
+			w.setTimestamp(timestamp);
+			point(w);
 		} else if (_reader.name() == "LineString") {
 			_tracks.append(TrackData());
-			TrackData &track = _tracks.last();
-			track.setName(name);
-			track.setDescription(desc);
-			lineString(track);
+			TrackData &t = _tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			lineString(t);
 		} else if (_reader.name() == "Track") {
 			_tracks.append(TrackData());
-			TrackData &track = _tracks.last();
-			track.setName(name);
-			track.setDescription(desc);
-			Track(track);
+			TrackData &t = _tracks.last();
+			t.setName(name);
+			t.setDescription(desc);
+			track(t);
 		} else
 			_reader.skipCurrentElement();
 	}

src/kmlparser.h

@@ -22,7 +22,9 @@ private:
 	void document();
 	void folder();
 	void placemark();
-	void Track(TrackData &track);
+	void multiGeometry(const QString &name, const QString &desc,
+	  const QDateTime timestamp);
+	void track(TrackData &track);
 	void lineString(TrackData &track);
 	void point(Waypoint &waypoint);
 	bool pointCoordinates(Waypoint &waypoint);

src/lambertconic.cpp

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

src/lambertconic.h

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

src/latlon.h

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

src/map.cpp

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

src/map.h

@@ -1,37 +1,42 @@
 #ifndef MAP_H
 #define MAP_H
 
-#include "tile.h"
+#include <QObject>
+#include <QString>
+#include <QRectF>
+
+class QPainter;
+class Coordinates;
 
 class Map : public QObject
 {
 	Q_OBJECT
 
 public:
-	Map(QObject *parent = 0, const QString &name = QString(),
-	  const QString &url = QString());
+	Map(QObject *parent = 0) : QObject(parent) {}
 
-	const QString &name() const {return _name;}
-	void loadTiles(QList<Tile> &list, bool block);
-	void clearCache();
+	virtual const QString &name() const = 0;
+
+	virtual QRectF bounds() const = 0;
+	virtual qreal resolution(const QPointF &p) const = 0;
+
+	virtual qreal zoom() const = 0;
+	virtual qreal zoomFit(const QSize &size, const QRectF &br) = 0;
+	virtual qreal zoomIn() = 0;
+	virtual qreal zoomOut() = 0;
+
+	virtual QPointF ll2xy(const Coordinates &c) = 0;
+	virtual Coordinates xy2ll(const QPointF &p) = 0;
+
+	virtual void draw(QPainter *painter, const QRectF &rect) = 0;
+
+	virtual void setBlockingMode(bool block) {Q_UNUSED(block);}
+	virtual void clearCache() {}
+	virtual void load() {}
+	virtual void unload() {}
 
 signals:
 	void loaded();
-
-private slots:
-	void emitLoaded();
-
-private:
-	QString tileUrl(const Tile &tile);
-	QString tileFile(const Tile &tile);
-	bool loadTileFile(Tile &tile, const QString &file);
-	void fillTile(Tile &tile);
-
-	void loadTilesAsync(QList<Tile> &list);
-	void loadTilesSync(QList<Tile> &list);
-
-	QString _name;
-	QString _url;
 };
 
 #endif // MAP_H

src/maplist.cpp

@@ -1,41 +1,100 @@
-#include <QFile>
 #include <QFileInfo>
-#include "map.h"
+#include <QDir>
+#include "atlas.h"
+#include "offlinemap.h"
+#include "onlinemap.h"
 #include "maplist.h"
 
 
-QList<Map*> MapList::load(QObject *parent, const QString &fileName)
+bool MapList::loadListEntry(const QByteArray &line)
 {
-	QList<Map*> mapList;
-	QFileInfo fi(fileName);
+	QList<QByteArray> list = line.split('\t');
+	if (list.size() != 2)
+		return false;
 
-	if (!fi.exists())
-		return mapList;
+	QByteArray ba1 = list[0].trimmed();
+	QByteArray ba2 = list[1].trimmed();
+	if (ba1.isEmpty() || ba2.isEmpty())
+		return false;
 
-	QFile file(fileName);
+	_maps.append(new OnlineMap(QString::fromUtf8(ba1.data(), ba1.size()),
+	  QString::fromLatin1(ba2.data(), ba2.size()), this));
+
+	return true;
+}
+
+bool MapList::loadList(const QString &path)
+{
+	QFile file(path);
 
 	if (!file.open(QFile::ReadOnly | QFile::Text)) {
-		fprintf(stderr, "Error opening map list file: %s: %s\n",
-		  qPrintable(fileName), qPrintable(file.errorString()));
-		return mapList;
+		_errorString = file.errorString();
+		return false;
 	}
 
 	int ln = 0;
 	while (!file.atEnd()) {
 		ln++;
 		QByteArray line = file.readLine();
-		QList<QByteArray> list = line.split('\t');
-		if (list.size() != 2) {
-			fprintf(stderr, "Invalid map list entry on line %d\n", ln);
-			continue;
+
+		if (!loadListEntry(line)) {
+			_errorString = QString("Invalid map list entry on line %1.")
+			  .arg(QString::number(ln));
+			return false;
 		}
-
-		QByteArray ba1 = list[0].trimmed();
-		QByteArray ba2 = list[1].trimmed();
-
-		mapList.append(new Map(parent, QString::fromUtf8(ba1.data(), ba1.size()),
-		  QString::fromLatin1(ba2.data(), ba2.size())));
 	}
 
-	return mapList;
+	return true;
+}
+
+bool MapList::loadMap(const QString &path)
+{
+	QFileInfo fi(path);
+	QString suffix = fi.suffix().toLower();
+
+	if (suffix == "map") {
+		OfflineMap *om = new OfflineMap(path, this);
+		if (om->isValid()) {
+			_maps.append(om);
+			return true;
+		} else {
+			_errorString = om->errorString();
+			delete om;
+			return false;
+		}
+	} else if (suffix == "tba") {
+		Atlas *atlas = new Atlas(path, this);
+		if (atlas->isValid()) {
+			_maps.append(atlas);
+			return true;
+		} else {
+			_errorString = atlas->errorString();
+			delete atlas;
+			return false;
+		}
+	} else if (suffix == "tar") {
+		Atlas *atlas = new Atlas(path, this);
+		if (atlas->isValid()) {
+			_maps.append(atlas);
+			return true;
+		} else {
+			_errorString = atlas->errorString();
+			delete atlas;
+			OfflineMap *om = new OfflineMap(path, this);
+			if (om->isValid()) {
+				_maps.append(om);
+				return true;
+			} else {
+				qWarning("%s: %s", qPrintable(path), qPrintable(_errorString));
+				qWarning("%s: %s", qPrintable(path),
+				  qPrintable(om->errorString()));
+				_errorString = "Not a map/atlas file";
+				delete om;
+				return false;
+			}
+		}
+	} else {
+		_errorString = "Not a map/atlas file";
+		return false;
+	}
 }

src/maplist.h

@@ -1,17 +1,28 @@
 #ifndef MAPLIST_H
 #define MAPLIST_H
 
-#include <QList>
-#include <QString>
 #include <QObject>
+#include <QString>
+#include "map.h"
 
-class Map;
-
-class MapList
+class MapList : public QObject
 {
+	Q_OBJECT
+
 public:
-	static QList<Map*> load(QObject *parent = 0,
-	  const QString &fileName = QString());
+	MapList(QObject *parent = 0) : QObject(parent) {}
+
+	bool loadMap(const QString &path);
+	bool loadList(const QString &path);
+
+	QList<Map*> &maps() {return _maps;}
+	const QString &errorString() const {return _errorString;}
+
+private:
+	bool loadListEntry(const QByteArray &line);
+
+	QList<Map*> _maps;
+	QString _errorString;
 };
 
 #endif // MAPLIST_H

src/matrix.cpp

@@ -0,0 +1,117 @@
+#include "matrix.h"
+
+
+#define abs(x) ((x)<0 ? -(x) : (x))
+
+Matrix::~Matrix()
+{
+	if (isNull())
+		return;
+
+	delete[] _m;
+}
+
+Matrix::Matrix(size_t h, size_t w)
+{
+	_h = h; _w = w;
+
+	if (isNull())
+		_m = 0;
+	else
+		_m = new double[_h * _w];
+}
+
+Matrix::Matrix(const Matrix& M)
+{
+	_h = M._h; _w = M._w;
+
+	if (isNull())
+		_m = 0;
+	else
+		_m = new double[_h * _w];
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = 0; j < _w; j++)
+			m(i,j) = M.m(i,j);
+}
+
+Matrix &Matrix::operator=(const Matrix &M)
+{
+	if (_h != M._h || _w != M._w) {
+		if (!isNull())
+			delete[] _m;
+
+		_h = M._h; _w = M._w;
+		if (isNull())
+			_m = 0;
+		else
+			_m = new double[_h * _w];
+	}
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = 0; j < _w; j++)
+			m(i,j) = M.m(i,j);
+
+	return *this;
+}
+
+bool Matrix::eliminate(double epsilon)
+{
+	size_t i, j, k, maxrow;
+	double temp;
+
+
+	for (i = 0; i < _h; i++) {
+		maxrow = i;
+		for (j = i+1; j < _h; j++)
+			if (abs(m(j, i)) > abs(m(maxrow, i)))
+				maxrow = j;
+		for (j = 0; j < _w; j++) {
+			temp = m(i, j);
+			m(i, j) = m(maxrow, j);
+			m(maxrow, j) = temp;
+		}
+		if (abs(m(i, i)) <= epsilon)
+			return false;
+		for (j = i+1; j<_h; j++) {
+			temp = m(j, i) / m(i, i);
+			for (k = i; k < _w; k++)
+				m(j, k) -= m(i, k) * temp;
+		}
+	}
+	for (i = _h-1; i < i+1; i--) {
+		temp  = m(i, i);
+		for (j = 0; j < i; j++)
+			for (k = _w-1; k >= i; k--)
+				m(j, k) -=  m(i, k) * m(j, i) / temp;
+		m(i, i) /= temp;
+		for (j = _h; j < _w; j++)
+			m(i, j) /= temp;
+	}
+
+	return true;
+}
+
+Matrix Matrix::augemented(const Matrix &M) const
+{
+	if (_h != M._h)
+		return Matrix();
+
+	Matrix A(_h, _w + M._w);
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = 0; j < _w; j++)
+			A.m(i, j) = m(i, j);
+
+	for (size_t i = 0; i < _h; i++)
+		for (size_t j = _w; j < A._w; j++)
+			A.m(i, j) = M.m(i, j-_w);
+
+	return A;
+}
+
+void Matrix::zeroize()
+{
+	for (size_t i = 0; i < _h * _w; i++)
+		_m[i] = 0;
+}

src/matrix.h

@@ -0,0 +1,33 @@
+#ifndef MATRIX_H
+#define MATRIX_H
+
+#include <cstddef>
+#include <cfloat>
+
+class Matrix {
+public:
+	Matrix() {_h = 0; _w = 0; _m = 0;}
+	Matrix(size_t h, size_t w);
+	Matrix(const Matrix& M);
+	~Matrix();
+
+	Matrix &operator=(const Matrix &M);
+
+	size_t h() const {return _h;}
+	size_t w() const {return _w;}
+	double &m(size_t i, size_t j) {return _m[_w * i + j];}
+	double const &m(size_t i, size_t j) const {return _m[_w * i + j];}
+
+	bool isNull() const {return (_h == 0 || _w == 0);}
+
+	void zeroize();
+	bool eliminate(double epsilon = DBL_EPSILON);
+	Matrix augemented(const Matrix &M) const;
+
+private:
+	double *_m;
+	size_t _h;
+	size_t _w;
+};
+
+#endif // MATRIX_H

src/mercator.cpp

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

src/mercator.h

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

src/misc.cpp

@@ -1,4 +1,5 @@
 #include <cmath>
+#include <cctype>
 #include "misc.h"
 
 
@@ -33,3 +34,23 @@ double niceNum(double x, int round)
 
 	return nf * pow(10.0, expv);
 }
+
+int str2int(const char *str, int len)
+{
+	int res = 0;
+
+	for (const char *sp = str; sp < str + len; sp++) {
+		if (::isdigit(*sp))
+			res = res * 10 + *sp - '0';
+		else
+			return -1;
+	}
+
+	return res;
+}
+
+QRectF scaled(const QRectF &rect, qreal factor)
+{
+	return QRectF(QPointF(rect.left() * factor, rect.top() * factor),
+	  QSizeF(rect.width() * factor, rect.height() * factor));
+}

src/misc.h

@@ -1,6 +1,13 @@
 #ifndef MISC_H
 #define MISC_H
 
+#include <QRectF>
+
+#define ARRAY_SIZE(array) \
+  (sizeof(array) / sizeof((array)[0]))
+
 double niceNum(double x, int round);
+int str2int(const char *str, int len);
+QRectF scaled(const QRectF &rect, qreal factor);
 
 #endif // MISC_H

src/nmeaparser.cpp

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

src/nmeaparser.h

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

src/oddspinbox.cpp

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

src/oddspinbox.h

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

src/offlinemap.cpp

@@ -0,0 +1,677 @@
+#include <QtGlobal>
+#include <QPainter>
+#include <QFileInfo>
+#include <QMap>
+#include <QDir>
+#include <QBuffer>
+#include <QImage>
+#include <QImageReader>
+#include <QPixmapCache>
+#include "misc.h"
+#include "rd.h"
+#include "wgs84.h"
+#include "coordinates.h"
+#include "matrix.h"
+#include "datum.h"
+#include "latlon.h"
+#include "mercator.h"
+#include "transversemercator.h"
+#include "utm.h"
+#include "lambertconic.h"
+#include "albersequal.h"
+#include "ozf.h"
+#include "offlinemap.h"
+
+
+// Abridged Molodensky transformation
+static Coordinates toWGS84(Coordinates c, const Datum &datum)
+{
+	double rlat = deg2rad(c.lat());
+	double rlon = deg2rad(c.lon());
+
+	double slat = sin(rlat);
+	double clat = cos(rlat);
+	double slon = sin(rlon);
+	double clon = cos(rlon);
+	double ssqlat = slat * slat;
+
+	double from_f = datum.ellipsoid().flattening();
+	double df = WGS84_FLATTENING - from_f;
+	double from_a = datum.ellipsoid().radius();
+	double da = WGS84_RADIUS - from_a;
+	double from_esq = datum.ellipsoid().flattening()
+	  * (2.0 - datum.ellipsoid().flattening());
+	double adb = 1.0 / (1.0 - from_f);
+	double rn = from_a / sqrt(1 - from_esq * ssqlat);
+	double rm = from_a * (1 - from_esq) / pow((1 - from_esq * ssqlat), 1.5);
+	double from_h = 0.0;
+
+	double dlat = (-datum.dx() * slat * clon - datum.dy() * slat * slon
+	  + datum.dz() * clat + da * rn * from_esq * slat * clat / from_a + df
+	  * (rm * adb + rn / adb) * slat * clat) / (rm + from_h);
+	double dlon = (-datum.dx() * slon + datum.dy() * clon) / ((rn + from_h)
+	  * clat);
+
+	return Coordinates(c.lon() + rad2deg(dlon), c.lat() + rad2deg(dlat));
+}
+
+
+int OfflineMap::parse(QIODevice &device, QList<ReferencePoint> &points,
+  QString &projection, ProjectionSetup &setup, QString &datum)
+{
+	bool res;
+	int ln = 1;
+
+	while (!device.atEnd()) {
+		QByteArray line = device.readLine();
+
+		if (ln == 1) {
+			if (!line.trimmed().startsWith("OziExplorer Map Data File"))
+				return ln;
+		} else if (ln == 2)
+			_name = line.trimmed();
+		else if (ln == 3)
+			_imgPath = line.trimmed();
+		else if (ln == 5)
+			datum = line.split(',').at(0).trimmed();
+		else {
+			QList<QByteArray> list = line.split(',');
+			QString key(list.at(0).trimmed());
+			bool ll = true; bool pp = true;
+
+			if (key.startsWith("Point") && list.count() == 17
+			  && !list.at(2).trimmed().isEmpty()) {
+				int x = list.at(2).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+				int y = list.at(3).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+
+				int latd = list.at(6).trimmed().toInt(&res);
+				if (!res)
+					ll = false;
+				qreal latm = list.at(7).trimmed().toFloat(&res);
+				if (!res)
+					ll = false;
+				int lond = list.at(9).trimmed().toInt(&res);
+				if (!res)
+					ll = false;
+				qreal lonm = list.at(10).trimmed().toFloat(&res);
+				if (!res)
+					ll = false;
+				if (ll && list.at(8).trimmed() == "S") {
+					latd = -latd;
+					latm = -latm;
+				}
+				if (ll && list.at(11).trimmed() == "W") {
+					lond = -lond;
+					lonm = -lonm;
+				}
+
+				setup.zone = list.at(13).trimmed().toInt(&res);
+				if (!res)
+					setup.zone = 0;
+				qreal ppx = list.at(14).trimmed().toFloat(&res);
+				if (!res)
+					pp = false;
+				qreal ppy = list.at(15).trimmed().toFloat(&res);
+				if (!res)
+					pp = false;
+				if (list.at(16).trimmed() == "S")
+					setup.zone = -setup.zone;
+
+				ReferencePoint p;
+				p.xy = QPoint(x, y);
+				if (ll) {
+					p.ll = Coordinates(lond + lonm/60.0, latd + latm/60.0);
+					if (p.ll.isValid())
+						points.append(p);
+					else
+						return ln;
+				} else if (pp) {
+					p.pp = QPointF(ppx, ppy);
+					points.append(p);
+				} else
+					return ln;
+			} else if (key == "IWH") {
+				int w = list.at(2).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+				int h = list.at(3).trimmed().toInt(&res);
+				if (!res)
+					return ln;
+				_size = QSize(w, h);
+			} else if (key == "Map Projection") {
+				projection = list.at(1);
+			} else if (key == "Projection Setup") {
+				if (list.count() < 8)
+					return ln;
+				setup.latitudeOrigin = list.at(1).trimmed().toFloat(&res);
+				if (!res)
+					setup.latitudeOrigin = 0;
+				setup.longitudeOrigin = list.at(2).trimmed().toFloat(&res);
+				if (!res)
+					setup.longitudeOrigin = 0;
+				setup.scale = list.at(3).trimmed().toFloat(&res);
+				if (!res)
+					setup.scale = 1.0;
+				setup.falseEasting = list.at(4).trimmed().toFloat(&res);
+				if (!res)
+					setup.falseEasting = 0;
+				setup.falseNorthing = list.at(5).trimmed().toFloat(&res);
+				if (!res)
+					setup.falseNorthing = 0;
+				setup.standardParallel1 = list.at(6).trimmed().toFloat(&res);
+				if (!res)
+					setup.standardParallel1 = 0;
+				setup.standardParallel2 = list.at(7).trimmed().toFloat(&res);
+				if (!res)
+					setup.standardParallel2 = 0;
+			}
+		}
+
+		ln++;
+	}
+
+	return 0;
+}
+
+bool OfflineMap::parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
+  QString &projection, ProjectionSetup &setup, QString &datum)
+{
+	int el;
+
+	if (!device.open(QIODevice::ReadOnly)) {
+		_errorString = QString("Error opening map file: %1")
+		  .arg(device.errorString());
+		return false;
+	}
+
+	if ((el = parse(device, points, projection, setup, datum))) {
+		_errorString = QString("Map file parse error on line %1").arg(el);
+		return false;
+	}
+
+	return true;
+}
+
+bool OfflineMap::createProjection(const QString &datum,
+  const QString &projection, const ProjectionSetup &setup,
+  QList<ReferencePoint> &points)
+{
+	if (points.count() < 2) {
+		_errorString = "Insufficient number of reference points";
+		return false;
+	}
+
+	Datum d = Datum::datum(datum);
+	if (d.isNull()) {
+		_errorString = QString("%1: Unknown datum").arg(datum);
+		return false;
+	}
+
+	if (setup.latitudeOrigin < -90.0 || setup.latitudeOrigin > 90.0
+	  || setup.longitudeOrigin < -180.0 || setup.longitudeOrigin > 180.0
+	  || setup.standardParallel1 < -90 || setup.standardParallel1 > 90
+	  || setup.standardParallel2 < -90 || setup.standardParallel2 > 90) {
+		_errorString = "Invalid projection setup";
+		return false;
+	}
+
+	if (projection == "Mercator")
+		_projection = new Mercator();
+	else if (projection == "Transverse Mercator")
+		_projection = new TransverseMercator(d.ellipsoid(),
+		  setup.latitudeOrigin, setup.longitudeOrigin, setup.scale,
+		  setup.falseEasting, setup.falseNorthing);
+	else if (projection == "Latitude/Longitude")
+		_projection = new LatLon();
+	else if (projection == "Lambert Conformal Conic")
+		_projection = new LambertConic(d.ellipsoid(),
+		  setup.standardParallel1, setup.standardParallel2,
+		  setup.latitudeOrigin, setup.longitudeOrigin, setup.scale,
+		  setup.falseEasting, setup.falseNorthing);
+	else if (projection == "Albers Equal Area")
+		_projection = new AlbersEqual(d.ellipsoid(), setup.standardParallel1,
+		  setup.standardParallel2, setup.latitudeOrigin, setup.longitudeOrigin,
+		  setup.falseEasting, setup.falseNorthing);
+	else if (projection == "(UTM) Universal Transverse Mercator") {
+		if (setup.zone)
+			_projection = new UTM(d.ellipsoid(), setup.zone);
+		else if (!points.first().ll.isNull())
+			_projection = new UTM(d.ellipsoid(), points.first().ll);
+		else {
+			_errorString = "Can not determine UTM zone";
+			return false;
+		}
+	} else if (projection == "(NZTM2) New Zealand TM 2000")
+		_projection = new TransverseMercator(d.ellipsoid(), 0, 173.0, 0.9996,
+		  1600000, 10000000);
+	else if (projection == "(BNG) British National Grid")
+		_projection = new TransverseMercator(d.ellipsoid(), 49, -2, 0.999601,
+		  400000, -100000);
+	else if (projection == "(IG) Irish Grid")
+		_projection = new TransverseMercator(d.ellipsoid(), 53.5, -8, 1.000035,
+		  200000, 250000);
+	else if (projection == "(SG) Swedish Grid")
+		_projection = new TransverseMercator(d.ellipsoid(), 0, 15.808278, 1,
+		  1500000, 0);
+	else {
+		_errorString = QString("%1: Unknown map projection").arg(projection);
+		return false;
+	}
+
+	for (int i = 0; i < points.size(); i++) {
+		if (points.at(i).ll.isNull()) {
+			if (d.isWGS84())
+				points[i].ll = _projection->xy2ll(points.at(i).pp);
+			else
+				points[i].ll = toWGS84(_projection->xy2ll(points.at(i).pp), d);
+		} else {
+			if (!d.isWGS84())
+				points[i].ll = toWGS84(points[i].ll, d);
+		}
+	}
+
+	return true;
+}
+
+bool OfflineMap::computeTransformation(const QList<ReferencePoint> &points)
+{
+	Q_ASSERT(points.size() >= 2);
+
+	Matrix c(3, 2);
+	c.zeroize();
+	for (size_t j = 0; j < c.w(); j++) {
+		for (size_t k = 0; k < c.h(); k++) {
+			for (int i = 0; i < points.size(); i++) {
+				double f[3], t[2];
+				QPointF p = _projection->ll2xy(points.at(i).ll);
+
+				f[0] = p.x();
+				f[1] = p.y();
+				f[2] = 1.0;
+				t[0] = points.at(i).xy.x();
+				t[1] = points.at(i).xy.y();
+				c.m(k,j) += f[k] * t[j];
+			}
+		}
+	}
+
+	Matrix Q(3, 3);
+	Q.zeroize();
+	for (int qi = 0; qi < points.size(); qi++) {
+		double v[3];
+		QPointF p = _projection->ll2xy(points.at(qi).ll);
+
+		v[0] = p.x();
+		v[1] = p.y();
+		v[2] = 1.0;
+		for (size_t i = 0; i < Q.h(); i++)
+			for (size_t j = 0; j < Q.w(); j++)
+				Q.m(i,j) += v[i] * v[j];
+	}
+
+	Matrix M = Q.augemented(c);
+	if (!M.eliminate()) {
+		_errorString = "Singular transformation matrix";
+		return false;
+	}
+
+	_transform = QTransform(M.m(0,3), M.m(0,4), M.m(1,3), M.m(1,4), M.m(2,3),
+	  M.m(2,4));
+	_inverted = _transform.inverted();
+
+	return true;
+}
+
+bool OfflineMap::computeResolution(QList<ReferencePoint> &points)
+{
+	Q_ASSERT(points.count() >= 2);
+
+	int maxLon = 0, minLon = 0, maxLat = 0, minLat = 0;
+	qreal dLon, pLon, dLat, pLat;
+
+	for (int i = 1; i < points.size(); i++) {
+		if (points.at(i).ll.lon() < points.at(minLon).ll.lon())
+			minLon = i;
+		if (points.at(i).ll.lon() > points.at(maxLon).ll.lon())
+			maxLon = i;
+		if (points.at(i).ll.lat() < points.at(minLat).ll.lon())
+			minLat = i;
+		if (points.at(i).ll.lat() > points.at(maxLat).ll.lon())
+			maxLat = i;
+	}
+
+	dLon = points.at(minLon).ll.distanceTo(points.at(maxLon).ll);
+	pLon = QLineF(points.at(minLon).xy, points.at(maxLon).xy).length();
+	dLat = points.at(minLat).ll.distanceTo(points.at(maxLat).ll);
+	pLat = QLineF(points.at(minLat).xy, points.at(maxLat).xy).length();
+
+	_resolution = (dLon/pLon + dLat/pLat) / 2.0;
+
+	return true;
+}
+
+bool OfflineMap::getImageInfo(const QString &path)
+{
+	QFileInfo ii(_imgPath);
+
+	if (ii.isRelative())
+		ii.setFile(path + "/" + _imgPath);
+
+	if (!ii.exists()) {
+		int last = _imgPath.lastIndexOf('\\');
+		if (last >= 0 && last < _imgPath.length() - 1) {
+			QStringRef fn(&_imgPath, last + 1, _imgPath.length() - last - 1);
+			ii.setFile(path + "/" + fn.toString());
+		}
+	}
+
+	if (ii.exists())
+		_imgPath = ii.absoluteFilePath();
+	else {
+		_errorString = QString("%1: No such image file").arg(_imgPath);
+		return false;
+	}
+
+	QString suffix = ii.suffix().toLower();
+	if (suffix == "ozf4" || suffix == "ozfx4") {
+		_errorString = QString("%1: OZF4 image files not supported")
+		  .arg(QFileInfo(_imgPath).fileName());
+		return false;
+	} else if (suffix == "ozf2" || suffix == "ozfx2" || suffix == "ozf3"
+	  || suffix == "ozfx3") {
+		_ozf.load(_imgPath);
+		_size = _ozf.size();
+	} else {
+		QImageReader img(_imgPath);
+		_size = img.size();
+	}
+	if (!_size.isValid()) {
+		_errorString = QString("%1: Error reading map image")
+		  .arg(QFileInfo(_imgPath).fileName());
+		return false;
+	}
+
+	return true;
+}
+
+bool OfflineMap::getTileInfo(const QStringList &tiles, const QString &path)
+{
+	QRegExp rx("_[0-9]+_[0-9]+\\.");
+	for (int i = 0; i < tiles.size(); i++) {
+		if (tiles.at(i).contains(rx)) {
+			_tileName = QString(tiles.at(i)).replace(rx, "_%1_%2.");
+
+			if (path.isNull()) {
+				QByteArray ba = _tar.file(tiles.at(i));
+				QBuffer buffer(&ba);
+				_tileSize = QImageReader(&buffer).size();
+			} else {
+				_tileName = path + "/" + _tileName;
+				_tileSize = QImageReader(path + "/" + tiles.at(i)).size();
+			}
+			if (!_tileSize.isValid()) {
+				_errorString = QString("Error retrieving tile size: "
+				  "%1: Invalid image").arg(QFileInfo(tiles.at(i)).fileName());
+				return false;
+			}
+
+			return true;
+		}
+	}
+
+	_errorString = "Invalid/missing tile set";
+	return false;
+}
+
+bool OfflineMap::totalSizeSet()
+{
+	if (!_size.isValid()) {
+		_errorString = "Missing total image size (IWH)";
+		return false;
+	} else
+		return true;
+}
+
+OfflineMap::OfflineMap(const QString &fileName, QObject *parent)
+  : Map(parent)
+{
+	QList<ReferencePoint> points;
+	QString proj, datum;
+	ProjectionSetup setup;
+	QFileInfo fi(fileName);
+	QString suffix = fi.suffix().toLower();
+
+
+	_valid = false;
+	_img = 0;
+	_projection = 0;
+	_resolution = 0;
+
+	if (suffix == "tar") {
+		if (!_tar.load(fileName)) {
+			_errorString = "Error reading tar file";
+			return;
+		}
+
+		QString mapFileName = fi.completeBaseName() + ".map";
+		QByteArray ba = _tar.file(mapFileName);
+		if (ba.isNull()) {
+			_errorString = "Map file not found";
+			return;
+		}
+		QBuffer mapFile(&ba);
+		if (!parseMapFile(mapFile, points, proj, setup, datum))
+			return;
+	} else if (suffix =="map") {
+		QFile mapFile(fileName);
+		if (!parseMapFile(mapFile, points, proj, setup, datum))
+			return;
+	} else {
+		_errorString = "Not a map file";
+		return;
+	}
+
+	if (!createProjection(datum, proj, setup, points))
+		return;
+	if (!computeTransformation(points))
+		return;
+	computeResolution(points);
+
+	if (_tar.isOpen()) {
+		if (!totalSizeSet())
+			return;
+		if (!getTileInfo(_tar.files()))
+			return;
+		_imgPath = QString();
+	} else {
+		QDir set(fi.absolutePath() + "/" + "set");
+		if (set.exists()) {
+			if (!totalSizeSet())
+				return;
+			if (!getTileInfo(set.entryList(), set.absolutePath()))
+				return;
+			_imgPath = QString();
+		} else {
+			if (!getImageInfo(fi.absolutePath()))
+				return;
+		}
+	}
+
+	_valid = true;
+}
+
+OfflineMap::OfflineMap(const QString &fileName, Tar &tar, QObject *parent)
+  : Map(parent)
+{
+	QList<ReferencePoint> points;
+	QString proj, datum;
+	ProjectionSetup setup;
+	QFileInfo fi(fileName);
+
+	_valid = false;
+	_img = 0;
+	_projection = 0;
+
+	QFileInfo map(fi.absolutePath());
+	QFileInfo layer(map.absolutePath());
+	QString mapFile = layer.fileName() + "/" + map.fileName() + "/"
+	  + fi.fileName();
+	QByteArray ba = tar.file(mapFile);
+	if (ba.isNull()) {
+		_errorString = "Map file not found";
+		return;
+	}
+	QBuffer buffer(&ba);
+
+	if (!parseMapFile(buffer, points, proj, setup, datum))
+		return;
+	if (!createProjection(datum, proj, setup, points))
+		return;
+	if (!totalSizeSet())
+		return;
+	if (!computeTransformation(points))
+		return;
+	computeResolution(points);
+
+
+	_tarPath = fi.absolutePath() + "/" + fi.completeBaseName() + ".tar";
+	_imgPath = QString();
+	_valid = true;
+}
+
+OfflineMap::~OfflineMap()
+{
+	if (_img)
+		delete _img;
+	if (_projection)
+		delete _projection;
+}
+
+void OfflineMap::load()
+{
+	if (!_tarPath.isNull() && !_tileSize.isValid()) {
+		if (!_tar.load(_tarPath)) {
+			qWarning("%s: error loading tar file", qPrintable(_tarPath));
+			return;
+		}
+		if (!getTileInfo(_tar.files()))
+			qWarning("%s: %s", qPrintable(_tarPath), qPrintable(_errorString));
+		return;
+	}
+
+	if (!_img && !_imgPath.isNull() && !_ozf.isOpen()) {
+		_img = new QImage(_imgPath);
+		if (_img->isNull())
+			qWarning("%s: error loading map image", qPrintable(_imgPath));
+	}
+}
+
+void OfflineMap::unload()
+{
+	if (_img) {
+		delete _img;
+		_img = 0;
+	}
+}
+
+void OfflineMap::drawTiled(QPainter *painter, const QRectF &rect)
+{
+	QPoint tl = QPoint((int)floor(rect.left() / (qreal)_tileSize.width())
+	  * _tileSize.width(), (int)floor(rect.top() / _tileSize.height())
+	  * _tileSize.height());
+
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	for (int i = 0; i < ceil(s.width() / _tileSize.width()); i++) {
+		for (int j = 0; j < ceil(s.height() / _tileSize.height()); j++) {
+			int x = tl.x() + i * _tileSize.width();
+			int y = tl.y() + j * _tileSize.height();
+
+			if (!QRectF(QPointF(x, y), _ozf.tileSize()).intersects(bounds())) {
+				painter->fillRect(QRectF(QPoint(x, y), _tileSize), Qt::white);
+				continue;
+			}
+
+			QString tileName(_tileName.arg(QString::number(x),
+			  QString::number(y)));
+			QPixmap pixmap;
+
+			if (_tar.isOpen()) {
+				QString key = _tar.fileName() + "/" + tileName;
+				if (!QPixmapCache::find(key, &pixmap)) {
+					QByteArray ba = _tar.file(tileName);
+					pixmap = QPixmap::fromImage(QImage::fromData(ba));
+					if (!pixmap.isNull())
+						QPixmapCache::insert(key, pixmap);
+				}
+			} else
+				pixmap = QPixmap(tileName);
+
+			if (pixmap.isNull()) {
+				qWarning("%s: error loading tile image", qPrintable(
+				  _tileName.arg(QString::number(x), QString::number(y))));
+				painter->fillRect(QRectF(QPoint(x, y), _tileSize), Qt::white);
+			} else
+				painter->drawPixmap(QPoint(x, y), pixmap);
+		}
+	}
+}
+
+void OfflineMap::drawOZF(QPainter *painter, const QRectF &rect)
+{
+	QPoint tl = QPoint((int)floor(rect.left() / _ozf.tileSize().width())
+	  * _ozf.tileSize().width(), (int)floor(rect.top()
+	  / _ozf.tileSize().height()) * _ozf.tileSize().height());
+
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	for (int i = 0; i < ceil(s.width() / _ozf.tileSize().width()); i++) {
+		for (int j = 0; j < ceil(s.height() / _ozf.tileSize().height()); j++) {
+			int x = tl.x() + i * _ozf.tileSize().width();
+			int y = tl.y() + j * _ozf.tileSize().height();
+
+			if (!QRectF(QPointF(x, y), _ozf.tileSize()).intersects(bounds())) {
+				painter->fillRect(QRectF(QPoint(x, y), _tileSize), Qt::white);
+				continue;
+			}
+
+			QPixmap pixmap;
+			QString key = _ozf.fileName() + "/" + QString::number(x)
+			  + "_" + QString::number(y);
+			if (!QPixmapCache::find(key, &pixmap)) {
+				pixmap = _ozf.tile(x, y);
+				if (!pixmap.isNull())
+					QPixmapCache::insert(key, pixmap);
+			}
+
+			if (pixmap.isNull()) {
+				qWarning("%s: error loading tile image", qPrintable(key));
+				painter->fillRect(QRectF(QPoint(x, y), _tileSize), Qt::white);
+			} else
+				painter->drawPixmap(QPoint(x, y), pixmap);
+		}
+	}
+}
+
+void OfflineMap::drawImage(QPainter *painter, const QRectF &rect)
+{
+	if (!_img || _img->isNull())
+		painter->fillRect(rect, Qt::white);
+	else {
+		QPoint p = rect.topLeft().toPoint();
+		QImage crop = _img->copy(QRect(p, rect.size().toSize()));
+		painter->drawImage(rect.topLeft(), crop);
+	}
+}
+
+void OfflineMap::draw(QPainter *painter, const QRectF &rect)
+{
+	if (_ozf.isOpen())
+		drawOZF(painter, rect);
+	else if (_tileSize.isValid())
+		drawTiled(painter, rect);
+	else
+		drawImage(painter, rect);
+}

src/offlinemap.h

@@ -0,0 +1,106 @@
+#ifndef OFFLINEMAP_H
+#define OFFLINEMAP_H
+
+#include <QTransform>
+#include "map.h"
+#include "tar.h"
+#include "ozf.h"
+#include "coordinates.h"
+#include "projection.h"
+
+
+class QIODevice;
+class QImage;
+
+class OfflineMap : public Map
+{
+	Q_OBJECT
+
+public:
+	OfflineMap(const QString &fileName, QObject *parent = 0);
+	OfflineMap(const QString &fileName, Tar &tar, QObject *parent = 0);
+	~OfflineMap();
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const {return QRectF(QPointF(0, 0), _size);}
+	qreal resolution(const QPointF &) const {return _resolution;}
+
+	qreal zoom() const {return 1.0;}
+	qreal zoomFit(const QSize &, const QRectF &) {return 1.0;}
+	qreal zoomIn() {return 1.0;}
+	qreal zoomOut() {return 1.0;}
+
+	QPointF ll2xy(const Coordinates &c)
+	  {return _transform.map(_projection->ll2xy(c));}
+	Coordinates xy2ll(const QPointF &p)
+	  {return _projection->xy2ll(_inverted.map(p));}
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void load();
+	void unload();
+
+	bool isValid() const {return _valid;}
+	const QString &errorString() const {return _errorString;}
+
+	QPointF ll2pp(const Coordinates &c) const
+	  {return _projection->ll2xy(c);}
+	QPointF xy2pp(const QPointF &p) const
+	  {return _inverted.map(p);}
+	QPointF pp2xy(const QPointF &p) const
+	  {return _transform.map(p);}
+
+private:
+	typedef struct {
+		QPoint xy;
+		Coordinates ll;
+		QPointF pp;
+	} ReferencePoint;
+
+	typedef struct {
+		double latitudeOrigin;
+		double longitudeOrigin;
+		double scale;
+		double falseEasting;
+		double falseNorthing;
+		double standardParallel1;
+		double standardParallel2;
+		int zone;
+	} ProjectionSetup;
+
+	int parse(QIODevice &device, QList<ReferencePoint> &points,
+	  QString &projection, ProjectionSetup &setup, QString &datum);
+	bool parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
+	  QString &projection, ProjectionSetup &setup, QString &datum);
+	bool totalSizeSet();
+	bool createProjection(const QString &datum, const QString &projection,
+	  const ProjectionSetup &setup, QList<ReferencePoint> &points);
+	bool computeTransformation(const QList<ReferencePoint> &points);
+	bool computeResolution(QList<ReferencePoint> &points);
+	bool getTileInfo(const QStringList &tiles, const QString &path = QString());
+	bool getImageInfo(const QString &path);
+
+	void drawTiled(QPainter *painter, const QRectF &rect);
+	void drawOZF(QPainter *painter, const QRectF &rect);
+	void drawImage(QPainter *painter, const QRectF &rect);
+
+	QString _name;
+	bool _valid;
+	QString _errorString;
+
+	QSize _size;
+	Projection *_projection;
+	QTransform _transform, _inverted;
+	qreal _resolution;
+
+	OZF _ozf;
+	Tar _tar;
+	QString _tarPath;
+	QImage *_img;
+	QString _imgPath;
+	QSize _tileSize;
+	QString _tileName;
+};
+
+#endif // OFFLINEMAP_H

src/onlinemap.cpp

@@ -0,0 +1,245 @@
+#include <QFileInfo>
+#include <QDir>
+#include <QPainter>
+#include "downloader.h"
+#include "config.h"
+#include "rd.h"
+#include "wgs84.h"
+#include "misc.h"
+#include "coordinates.h"
+#include "mercator.h"
+#include "onlinemap.h"
+
+
+#define ZOOM_MAX      18
+#define ZOOM_MIN      3
+#define TILE_SIZE     256
+
+static QPoint mercator2tile(const QPointF &m, int z)
+{
+	QPoint tile;
+
+	tile.setX((int)(floor((m.x() + 180.0) / 360.0 * (1<<z))));
+	tile.setY((int)(floor((1.0 - (m.y() / 180.0)) / 2.0 * (1<<z))));
+
+	return tile;
+}
+
+static int scale2zoom(qreal scale)
+{
+	int zoom = (int)log2(360.0/(scale * (qreal)TILE_SIZE));
+
+	if (zoom < ZOOM_MIN)
+		return ZOOM_MIN;
+	if (zoom > ZOOM_MAX)
+		return ZOOM_MAX;
+
+	return zoom;
+}
+
+
+Downloader *OnlineMap::downloader;
+
+OnlineMap::OnlineMap(const QString &name, const QString &url, QObject *parent)
+  : Map(parent)
+{
+	_name = name;
+	_url = url;
+	_block = false;
+	_scale = ((360.0/(qreal)(1<<ZOOM_MAX))/(qreal)TILE_SIZE);
+
+	connect(downloader, SIGNAL(finished()), this, SLOT(emitLoaded()));
+
+	QString path = TILES_DIR + QString("/") + name;
+	if (!QDir().mkpath(path))
+		qWarning("Error creating tiles dir: %s\n", qPrintable(path));
+}
+
+void OnlineMap::emitLoaded()
+{
+	emit loaded();
+}
+
+void OnlineMap::loadTilesAsync(QList<Tile> &list)
+{
+	QList<Download> dl;
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+		QString file = tileFile(t);
+		QFileInfo fi(file);
+
+		if (!fi.exists()) {
+			fillTile(t);
+			dl.append(Download(tileUrl(t), file));
+		} else
+			loadTileFile(t, file);
+	}
+
+	if (!dl.empty())
+		downloader->get(dl);
+}
+
+void OnlineMap::loadTilesSync(QList<Tile> &list)
+{
+	QList<Download> dl;
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+		QString file = tileFile(t);
+		QFileInfo fi(file);
+
+		if (!fi.exists())
+			dl.append(Download(tileUrl(t), file));
+		else
+			loadTileFile(t, file);
+	}
+
+	if (dl.empty())
+		return;
+
+	QEventLoop wait;
+	connect(downloader, SIGNAL(finished()), &wait, SLOT(quit()));
+	if (downloader->get(dl))
+		wait.exec();
+
+	for (int i = 0; i < list.size(); i++) {
+		Tile &t = list[i];
+
+		if (t.pixmap().isNull()) {
+			QString file = tileFile(t);
+			QFileInfo fi(file);
+
+			if (!(fi.exists() && loadTileFile(t, file)))
+				fillTile(t);
+		}
+	}
+}
+
+void OnlineMap::fillTile(Tile &tile)
+{
+	tile.pixmap() = QPixmap(TILE_SIZE, TILE_SIZE);
+	tile.pixmap().fill();
+}
+
+bool OnlineMap::loadTileFile(Tile &tile, const QString &file)
+{
+	if (!tile.pixmap().load(file)) {
+		qWarning("%s: error loading tile file\n", qPrintable(file));
+		return false;
+	}
+
+	return true;
+}
+
+QString OnlineMap::tileUrl(const Tile &tile)
+{
+	QString url(_url);
+
+	url.replace("$z", QString::number(tile.zoom()));
+	url.replace("$x", QString::number(tile.xy().x()));
+	url.replace("$y", QString::number(tile.xy().y()));
+
+	return url;
+}
+
+QString OnlineMap::tileFile(const Tile &tile)
+{
+	QString file = TILES_DIR + QString("/%1/%2-%3-%4").arg(name())
+	  .arg(tile.zoom()).arg(tile.xy().x()).arg(tile.xy().y());
+
+	return file;
+}
+
+void OnlineMap::clearCache()
+{
+	QString path = TILES_DIR + QString("/") + name();
+	QDir dir = QDir(path);
+	QStringList list = dir.entryList();
+
+	for (int i = 0; i < list.count(); i++)
+		dir.remove(list.at(i));
+}
+
+QRectF OnlineMap::bounds() const
+{
+	return scaled(QRectF(QPointF(-180, -180), QSizeF(360, 360)), 1.0/_scale);
+}
+
+qreal OnlineMap::zoomFit(const QSize &size, const QRectF &br)
+{
+	if (br.isNull())
+		_scale = ((360.0/(qreal)(1<<ZOOM_MAX))/(qreal)TILE_SIZE);
+	else {
+		Coordinates topLeft(br.topLeft());
+		Coordinates bottomRight(br.bottomRight());
+		QRectF tbr(Mercator().ll2xy(topLeft), Mercator().ll2xy(bottomRight));
+
+		QPointF sc(tbr.width() / size.width(), tbr.height() / size.height());
+
+		_scale = ((360.0/(qreal)(1<<scale2zoom(qMax(sc.x(), sc.y()))))
+		  / (qreal)TILE_SIZE);
+	}
+
+	return _scale;
+}
+
+qreal OnlineMap::resolution(const QPointF &p) const
+{
+	return (WGS84_RADIUS * 2 * M_PI * _scale / 360.0
+	  * cos(2.0 * atan(exp(deg2rad(-p.y() * _scale))) - M_PI/2));
+}
+
+qreal OnlineMap::zoomIn()
+{
+	int zoom = qMin(scale2zoom(_scale) + 1, ZOOM_MAX);
+	_scale = ((360.0/(qreal)(1<<zoom))/(qreal)TILE_SIZE);
+	return _scale;
+}
+
+qreal OnlineMap::zoomOut()
+{
+	int zoom = qMax(scale2zoom(_scale) - 1, ZOOM_MIN);
+	_scale = ((360.0/(qreal)(1<<zoom))/(qreal)TILE_SIZE);
+	return _scale;
+}
+
+void OnlineMap::draw(QPainter *painter, const QRectF &rect)
+{
+	int zoom = scale2zoom(_scale);
+
+	QPoint tile = mercator2tile(QPointF(rect.topLeft().x() * _scale,
+	  -rect.topLeft().y() * _scale), zoom);
+	QPoint tl = QPoint((int)floor(rect.left() / (qreal)TILE_SIZE)
+	  * TILE_SIZE, (int)floor(rect.top() / TILE_SIZE) * TILE_SIZE);
+
+	QList<Tile> tiles;
+	QSizeF s(rect.right() - tl.x(), rect.bottom() - tl.y());
+	for (int i = 0; i < ceil(s.width() / TILE_SIZE); i++)
+		for (int j = 0; j < ceil(s.height() / TILE_SIZE); j++)
+			tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), zoom));
+
+	if (_block)
+		loadTilesSync(tiles);
+	else
+		loadTilesAsync(tiles);
+
+	for (int i = 0; i < tiles.count(); i++) {
+		Tile &t = tiles[i];
+		QPoint tp(tl.x() + (t.xy().x() - tile.x()) * TILE_SIZE,
+		  tl.y() + (t.xy().y() - tile.y()) * TILE_SIZE);
+		painter->drawPixmap(tp, t.pixmap());
+	}
+}
+
+QPointF OnlineMap::ll2xy(const Coordinates &c)
+{
+	QPointF m = Mercator().ll2xy(c);
+	return QPointF(m.x() / _scale, m.y() / -_scale);
+}
+
+Coordinates OnlineMap::xy2ll(const QPointF &p)
+{
+	QPointF m(p.x() * _scale, -p.y() * _scale);
+	return Mercator().xy2ll(m);
+}

src/onlinemap.h

@@ -0,0 +1,56 @@
+#ifndef ONLINEMAP_H
+#define ONLINEMAP_H
+
+#include "map.h"
+#include "tile.h"
+
+class Downloader;
+
+class OnlineMap : public Map
+{
+	Q_OBJECT
+
+public:
+	OnlineMap(const QString &name, const QString &url, QObject *parent = 0);
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const {return _scale;}
+	qreal zoomFit(const QSize &size, const QRectF &br);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c);
+	Coordinates xy2ll(const QPointF &p);
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void setBlockingMode(bool block) {_block = block;}
+	void clearCache();
+
+	static void setDownloader(Downloader *downloader)
+	  {OnlineMap::downloader = downloader;}
+
+private slots:
+	void emitLoaded();
+
+private:
+	QString tileUrl(const Tile &tile);
+	QString tileFile(const Tile &tile);
+	bool loadTileFile(Tile &tile, const QString &file);
+	void fillTile(Tile &tile);
+	void loadTilesAsync(QList<Tile> &list);
+	void loadTilesSync(QList<Tile> &list);
+
+	qreal _scale;
+	QString _name;
+	QString _url;
+	bool _block;
+
+	static Downloader *downloader;
+};
+
+#endif // ONLINEMAP_H

src/opengl.h

@@ -0,0 +1,26 @@
+#include <QtGlobal>
+#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0) || defined(Q_OS_MAC)
+#include <QGLWidget>
+#include <QGLFormat>
+#else
+#include <QOpenGLWidget>
+#include <QSurfaceFormat>
+#endif
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0) || defined(Q_OS_MAC)
+#define OPENGL_WIDGET QGLWidget
+#else
+#define OPENGL_WIDGET QOpenGLWidget
+#endif
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0) || defined(Q_OS_MAC)
+#define OPENGL_SET_SAMPLES(samples) \
+	{QGLFormat fmt; \
+	fmt.setSamples(samples); \
+	QGLFormat::setDefaultFormat(fmt);}
+#else
+#define OPENGL_SET_SAMPLES(samples) \
+	{QSurfaceFormat fmt; \
+	fmt.setSamples(samples);\
+	QSurfaceFormat::setDefaultFormat(fmt);}
+#endif

src/optionsdialog.cpp

@@ -0,0 +1,407 @@
+#include <QVBoxLayout>
+#include <QFormLayout>
+#include <QDialogButtonBox>
+#include <QListWidget>
+#include <QListWidgetItem>
+#include <QStackedWidget>
+#include <QTabWidget>
+#include <QSpinBox>
+#include <QGroupBox>
+#include <QCheckBox>
+#include <QComboBox>
+#include <QLabel>
+#include <QSysInfo>
+#include "config.h"
+#include "icons.h"
+#include "colorbox.h"
+#include "stylecombobox.h"
+#include "oddspinbox.h"
+#include "optionsdialog.h"
+
+#define MENU_MARGIN 20
+#define MENU_ICON_SIZE 32
+
+
+QWidget *OptionsDialog::createAppearancePage()
+{
+	_baseColor = new ColorBox();
+	_baseColor->setColor(_options->palette.color());
+	_colorOffset = new QDoubleSpinBox();
+	_colorOffset->setMinimum(0);
+	_colorOffset->setMaximum(1.0);
+	_colorOffset->setSingleStep(0.01);
+	_colorOffset->setValue(_options->palette.shift());
+
+	QFormLayout *paletteLayout = new QFormLayout();
+	paletteLayout->addRow(tr("Base color:"), _baseColor);
+	paletteLayout->addRow(tr("Palette shift:"), _colorOffset);
+
+	QWidget *colorTab = new QWidget();
+	colorTab->setLayout(paletteLayout);
+
+
+	_trackWidth = new QSpinBox();
+	_trackWidth->setValue(_options->trackWidth);
+	_trackWidth->setMinimum(1);
+	_trackStyle = new StyleComboBox();
+	_trackStyle->setValue(_options->trackStyle);
+	QFormLayout *trackLayout = new QFormLayout();
+	trackLayout->addRow(tr("Track width:"), _trackWidth);
+	trackLayout->addRow(tr("Track style:"), _trackStyle);
+#ifndef Q_OS_MAC
+	QGroupBox *trackBox = new QGroupBox(tr("Tracks"));
+	trackBox->setLayout(trackLayout);
+#endif
+
+	_routeWidth = new QSpinBox();
+	_routeWidth->setValue(_options->routeWidth);
+	_routeWidth->setMinimum(1);
+	_routeStyle = new StyleComboBox();
+	_routeStyle->setValue(_options->routeStyle);
+	QFormLayout *routeLayout = new QFormLayout();
+	routeLayout->addRow(tr("Route width:"), _routeWidth);
+	routeLayout->addRow(tr("Route style:"), _routeStyle);
+#ifndef Q_OS_MAC
+	QGroupBox *routeBox = new QGroupBox(tr("Routes"));
+	routeBox->setLayout(routeLayout);
+#endif // Q_OS_MAC
+
+	_pathAA = new QCheckBox(tr("Use anti-aliasing"));
+	_pathAA->setChecked(_options->pathAntiAliasing);
+	QFormLayout *pathAALayout = new QFormLayout();
+	pathAALayout->addWidget(_pathAA);
+
+	QWidget *pathTab = new QWidget();
+	QVBoxLayout *pathTabLayout = new QVBoxLayout();
+#ifdef Q_OS_MAC
+	QFrame *l1 = new QFrame();
+	l1->setFrameShape(QFrame::HLine);
+	l1->setFrameShadow(QFrame::Sunken);
+	QFrame *l2 = new QFrame();
+	l2->setFrameShape(QFrame::HLine);
+	l2->setFrameShadow(QFrame::Sunken);
+
+	pathTabLayout->addLayout(trackLayout);
+	pathTabLayout->addWidget(l1);
+	pathTabLayout->addLayout(routeLayout);
+	pathTabLayout->addWidget(l2);
+#else // Q_OS_MAC
+	pathTabLayout->addWidget(trackBox);
+	pathTabLayout->addWidget(routeBox);
+#endif // Q_OS_MAC
+	pathTabLayout->addLayout(pathAALayout);
+	pathTabLayout->addStretch();
+	pathTab->setLayout(pathTabLayout);
+
+	_graphWidth = new QSpinBox();
+	_graphWidth->setValue(_options->graphWidth);
+	_graphWidth->setMinimum(1);
+	QFormLayout *graphLayout = new QFormLayout();
+	graphLayout->addRow(tr("Line width:"), _graphWidth);
+
+	_graphAA = new QCheckBox(tr("Use anti-aliasing"));
+	_graphAA->setChecked(_options->graphAntiAliasing);
+	QFormLayout *graphAALayout = new QFormLayout();
+	graphAALayout->addWidget(_graphAA);
+
+
+	QWidget *graphTab = new QWidget();
+	QVBoxLayout *graphTabLayout = new QVBoxLayout();
+	graphTabLayout->addLayout(graphLayout);
+	graphTabLayout->addLayout(graphAALayout);
+	graphTabLayout->addStretch();
+	graphTab->setLayout(graphTabLayout);
+
+	QTabWidget *appearancePage = new QTabWidget();
+	appearancePage->addTab(colorTab, tr("Colors"));
+	appearancePage->addTab(pathTab, tr("Paths"));
+	appearancePage->addTab(graphTab, tr("Graphs"));
+
+	return appearancePage;
+}
+
+QWidget *OptionsDialog::createDataPage()
+{
+	QString filterToolTip = tr("Moving average window size");
+
+	_elevationFilter = new OddSpinBox();
+	_elevationFilter->setValue(_options->elevationFilter);
+	_elevationFilter->setToolTip(filterToolTip);
+	_speedFilter = new OddSpinBox();
+	_speedFilter->setValue(_options->speedFilter);
+	_speedFilter->setToolTip(filterToolTip);
+	_heartRateFilter = new OddSpinBox();
+	_heartRateFilter->setValue(_options->heartRateFilter);
+	_heartRateFilter->setToolTip(filterToolTip);
+	_cadenceFilter = new OddSpinBox();
+	_cadenceFilter->setValue(_options->cadenceFilter);
+	_cadenceFilter->setToolTip(filterToolTip);
+	_powerFilter = new OddSpinBox();
+	_powerFilter->setValue(_options->powerFilter);
+	_powerFilter->setToolTip(filterToolTip);
+
+	QFormLayout *smoothLayout = new QFormLayout();
+	smoothLayout->addRow(tr("Elevation:"), _elevationFilter);
+	smoothLayout->addRow(tr("Speed:"), _speedFilter);
+	smoothLayout->addRow(tr("Heart rate:"), _heartRateFilter);
+	smoothLayout->addRow(tr("Cadence:"), _cadenceFilter);
+	smoothLayout->addRow(tr("Power:"), _powerFilter);
+#ifndef Q_OS_MAC
+	QGroupBox *smoothBox = new QGroupBox(tr("Smoothing"));
+	smoothBox->setLayout(smoothLayout);
+#endif // Q_OS_MAC
+
+	_outlierEliminate = new QCheckBox(tr("Eliminate GPS outliers"));
+	_outlierEliminate->setChecked(_options->outlierEliminate);
+
+	QFormLayout *outlierLayout = new QFormLayout();
+	outlierLayout->addWidget(_outlierEliminate);
+#ifndef Q_OS_MAC
+	QGroupBox *outlierBox = new QGroupBox(tr("Outlier elimination"));
+	outlierBox->setLayout(outlierLayout);
+#endif // Q_OS_MAC
+
+	QWidget *filterTab = new QWidget();
+	QVBoxLayout *filterTabLayout = new QVBoxLayout();
+#ifdef Q_OS_MAC
+	QLabel *label = new QLabel(tr("Smoothing:"));
+	QFrame *line = new QFrame();
+	line->setFrameShape(QFrame::HLine);
+	line->setFrameShadow(QFrame::Sunken);
+
+	filterTabLayout->addWidget(label);
+	filterTabLayout->addLayout(smoothLayout);
+	filterTabLayout->addWidget(line);
+	filterTabLayout->addLayout(outlierLayout);
+#else // Q_OS_MAC
+	filterTabLayout->addWidget(smoothBox);
+	filterTabLayout->addWidget(outlierBox);
+#endif // Q_OS_MAC
+	filterTabLayout->addStretch();
+	filterTab->setLayout(filterTabLayout);
+
+
+	_pauseSpeed = new QDoubleSpinBox();
+	_pauseSpeed->setDecimals(1);
+	_pauseSpeed->setSingleStep(0.1);
+	_pauseSpeed->setMinimum(0.1);
+	if (_options->units == Imperial) {
+		_pauseSpeed->setValue(_options->pauseSpeed * MS2MIH);
+		_pauseSpeed->setSuffix(UNIT_SPACE + tr("mi/h"));
+	} else {
+		_pauseSpeed->setValue(_options->pauseSpeed * MS2KMH);
+		_pauseSpeed->setSuffix(UNIT_SPACE + tr("km/h"));
+	}
+	_pauseInterval = new QSpinBox();
+	_pauseInterval->setMinimum(1);
+	_pauseInterval->setSuffix(UNIT_SPACE + tr("s"));
+	_pauseInterval->setValue(_options->pauseInterval);
+
+	QFormLayout *pauseLayout = new QFormLayout();
+	pauseLayout->addRow(tr("Minimal speed:"), _pauseSpeed);
+	pauseLayout->addRow(tr("Minimal duration:"), _pauseInterval);
+
+	QWidget *pauseTab = new QWidget();
+	pauseTab->setLayout(pauseLayout);
+
+
+	QTabWidget *filterPage = new QTabWidget();
+	filterPage->addTab(filterTab, tr("Filtering"));
+	filterPage->addTab(pauseTab, tr("Pause detection"));
+
+	return filterPage;
+}
+
+QWidget *OptionsDialog::createPOIPage()
+{
+	_poiRadius = new QDoubleSpinBox();
+	_poiRadius->setSingleStep(1);
+	_poiRadius->setDecimals(1);
+	if (_options->units == Imperial) {
+		_poiRadius->setValue(_options->poiRadius / MIINM);
+		_poiRadius->setSuffix(UNIT_SPACE + tr("mi"));
+	} else {
+		_poiRadius->setValue(_options->poiRadius / KMINM);
+		_poiRadius->setSuffix(UNIT_SPACE + tr("km"));
+	}
+
+	QFormLayout *poiLayout = new QFormLayout();
+	poiLayout->addRow(tr("POI radius:"), _poiRadius);
+
+	QWidget *poiTab = new QWidget();
+	poiTab->setLayout(poiLayout);
+
+	QTabWidget *poiPage = new QTabWidget();
+	poiPage->addTab(poiTab, tr("POI"));
+
+	return poiPage;
+}
+
+QWidget *OptionsDialog::createExportPage()
+{
+	_name = new QCheckBox(tr("Name"));
+	_name->setChecked(_options->printName);
+	_date = new QCheckBox(tr("Date"));
+	_date->setChecked(_options->printDate);
+	_distance = new QCheckBox(tr("Distance"));
+	_distance->setChecked(_options->printDistance);
+	_time = new QCheckBox(tr("Time"));
+	_time->setChecked(_options->printTime);
+	_movingTime = new QCheckBox(tr("Moving time"));
+	_movingTime->setChecked(_options->printMovingTime);
+	_itemCount = new QCheckBox(tr("Item count (>1)"));
+	_itemCount->setChecked(_options->printItemCount);
+
+	QFormLayout *headerTabLayout = new QFormLayout();
+	headerTabLayout->addWidget(_name);
+	headerTabLayout->addWidget(_date);
+	headerTabLayout->addWidget(_distance);
+	headerTabLayout->addWidget(_time);
+	headerTabLayout->addWidget(_movingTime);
+	headerTabLayout->addItem(new QSpacerItem(10, 10));
+	headerTabLayout->addWidget(_itemCount);
+	QWidget *headerTab = new QWidget();
+	headerTab->setLayout(headerTabLayout);
+
+
+	_separateGraphPage = new QCheckBox(tr("Separate graph page"));
+	_separateGraphPage->setChecked(_options->separateGraphPage);
+
+	QFormLayout *graphTabLayout = new QFormLayout();
+	graphTabLayout->addWidget(_separateGraphPage);
+	QWidget *graphTab = new QWidget();
+	graphTab->setLayout(graphTabLayout);
+
+
+	QTabWidget *exportPage = new QTabWidget();
+	exportPage->addTab(headerTab, tr("Header"));
+	exportPage->addTab(graphTab, tr("Graphs"));
+
+	return exportPage;
+}
+
+QWidget *OptionsDialog::createSystemPage()
+{
+	_useOpenGL = new QCheckBox(tr("Use OpenGL"));
+#ifdef Q_OS_WIN32
+	if (QSysInfo::WindowsVersion < QSysInfo::WV_VISTA) {
+		_useOpenGL->setChecked(false);
+		_useOpenGL->setEnabled(false);
+	} else
+#endif // Q_OS_WIN32
+	_useOpenGL->setChecked(_options->useOpenGL);
+
+	_pixmapCache = new QSpinBox();
+	_pixmapCache->setMinimum(16);
+	_pixmapCache->setMaximum(1024);
+	_pixmapCache->setSuffix(UNIT_SPACE + tr("MB"));
+	_pixmapCache->setValue(_options->pixmapCache);
+
+	QFormLayout *cacheLayout = new QFormLayout();
+	cacheLayout->addRow(tr("Image cache size:"), _pixmapCache);
+
+	QFormLayout *openGLLayout = new QFormLayout();
+	openGLLayout->addWidget(_useOpenGL);
+
+	QWidget *systemTab = new QWidget();
+	QVBoxLayout *systemTabLayout = new QVBoxLayout();
+	systemTabLayout->addLayout(cacheLayout);
+	systemTabLayout->addLayout(openGLLayout);
+	systemTabLayout->addStretch();
+	systemTab->setLayout(systemTabLayout);
+
+	QTabWidget *systemPage = new QTabWidget();
+	systemPage->addTab(systemTab, tr("System"));
+
+	return systemPage;
+}
+
+OptionsDialog::OptionsDialog(Options *options, QWidget *parent)
+  : QDialog(parent), _options(options)
+{
+	QStackedWidget *pages = new QStackedWidget();
+	pages->addWidget(createAppearancePage());
+	pages->addWidget(createDataPage());
+	pages->addWidget(createPOIPage());
+	pages->addWidget(createExportPage());
+	pages->addWidget(createSystemPage());
+
+	QListWidget *menu = new QListWidget();
+	menu->setIconSize(QSize(MENU_ICON_SIZE, MENU_ICON_SIZE));
+	new QListWidgetItem(QIcon(QPixmap(APPEARANCE_ICON)), tr("Appearance"),
+	  menu);
+	new QListWidgetItem(QIcon(QPixmap(DATA_ICON)), tr("Data"), menu);
+	new QListWidgetItem(QIcon(QPixmap(POI_ICON)), tr("POI"), menu);
+	new QListWidgetItem(QIcon(QPixmap(PRINT_EXPORT_ICON)), tr("Print & Export"),
+	  menu);
+	new QListWidgetItem(QIcon(QPixmap(SYSTEM_ICON)), tr("System"), menu);
+
+	QHBoxLayout *contentLayout = new QHBoxLayout();
+	contentLayout->addWidget(menu);
+	contentLayout->addWidget(pages);
+
+	menu->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
+	menu->setMaximumWidth(menu->sizeHintForColumn(0) + 2 * menu->frameWidth()
+	  + MENU_MARGIN);
+	pages->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Preferred);
+	pages->setMinimumWidth(2 * menu->size().width());
+
+	connect(menu, SIGNAL(currentRowChanged(int)), pages,
+	  SLOT(setCurrentIndex(int)));
+	menu->item(0)->setSelected(true);
+
+
+	QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
+	  | QDialogButtonBox::Cancel);
+	connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
+	connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+
+	QVBoxLayout *layout = new QVBoxLayout;
+	layout->addLayout(contentLayout);
+	layout->addWidget(buttonBox);
+	setLayout(layout);
+
+	setWindowTitle(tr("Options"));
+	setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+}
+
+void OptionsDialog::accept()
+{
+	_options->palette.setColor(_baseColor->color());
+	_options->palette.setShift(_colorOffset->value());
+	_options->trackWidth = _trackWidth->value();
+	_options->trackStyle = (Qt::PenStyle) _trackStyle->itemData(
+	  _trackStyle->currentIndex()).toInt();
+	_options->routeWidth = _routeWidth->value();
+	_options->routeStyle = (Qt::PenStyle) _routeStyle->itemData(
+	  _routeStyle->currentIndex()).toInt();
+	_options->pathAntiAliasing = _pathAA->isChecked();
+	_options->graphWidth = _graphWidth->value();
+	_options->graphAntiAliasing = _graphAA->isChecked();
+
+	_options->elevationFilter = _elevationFilter->value();
+	_options->speedFilter = _speedFilter->value();
+	_options->heartRateFilter = _heartRateFilter->value();
+	_options->cadenceFilter = _cadenceFilter->value();
+	_options->powerFilter = _powerFilter->value();
+	_options->outlierEliminate = _outlierEliminate->isChecked();
+	_options->pauseSpeed = (_options->units == Imperial)
+		? _pauseSpeed->value() / MS2MIH : _pauseSpeed->value() / MS2KMH;
+	_options->pauseInterval = _pauseInterval->value();
+
+	_options->poiRadius = (_options->units == Imperial)
+		? _poiRadius->value() * MIINM :  _poiRadius->value() * KMINM;
+
+	_options->useOpenGL = _useOpenGL->isChecked();
+	_options->pixmapCache = _pixmapCache->value();
+
+	_options->printName = _name->isChecked();
+	_options->printDate = _date->isChecked();
+	_options->printDistance = _distance->isChecked();
+	_options->printTime = _time->isChecked();
+	_options->printMovingTime = _movingTime->isChecked();
+	_options->printItemCount = _itemCount->isChecked();
+	_options->separateGraphPage = _separateGraphPage->isChecked();
+
+	QDialog::accept();
+}

src/optionsdialog.h

@@ -0,0 +1,105 @@
+#ifndef OPTIONSDIALOG_H
+#define OPTIONSDIALOG_H
+
+#include <QDialog>
+#include "palette.h"
+#include "units.h"
+
+class ColorBox;
+class StyleComboBox;
+class OddSpinBox;
+class QSpinBox;
+class QDoubleSpinBox;
+class QComboBox;
+class QCheckBox;
+
+struct Options {
+	// Appearance
+	Palette palette;
+	int trackWidth;
+	int routeWidth;
+	Qt::PenStyle trackStyle;
+	Qt::PenStyle routeStyle;
+	int graphWidth;
+	bool pathAntiAliasing;
+	bool graphAntiAliasing;
+	// Data
+	int elevationFilter;
+	int speedFilter;
+	int heartRateFilter;
+	int cadenceFilter;
+	int powerFilter;
+	bool outlierEliminate;
+	qreal pauseSpeed;
+	int pauseInterval;
+	// POI
+	int poiRadius;
+	// System
+	bool useOpenGL;
+	int pixmapCache;
+	// Print/Export
+	bool printName;
+	bool printDate;
+	bool printDistance;
+	bool printTime;
+	bool printMovingTime;
+	bool printItemCount;
+	bool separateGraphPage;
+
+	Units units;
+};
+
+class OptionsDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	OptionsDialog(Options *options, QWidget *parent = 0);
+
+public slots:
+	void accept();
+
+private:
+	QWidget *createAppearancePage();
+	QWidget *createDataPage();
+	QWidget *createPOIPage();
+	QWidget *createSystemPage();
+	QWidget *createExportPage();
+
+	Options *_options;
+
+	// Appearance
+	ColorBox *_baseColor;
+	QDoubleSpinBox *_colorOffset;
+	QSpinBox *_trackWidth;
+	StyleComboBox *_trackStyle;
+	QSpinBox *_routeWidth;
+	StyleComboBox *_routeStyle;
+	QCheckBox *_pathAA;
+	QSpinBox *_graphWidth;
+	QCheckBox *_graphAA;
+	// Data
+	OddSpinBox *_elevationFilter;
+	OddSpinBox *_speedFilter;
+	OddSpinBox *_heartRateFilter;
+	OddSpinBox *_cadenceFilter;
+	OddSpinBox *_powerFilter;
+	QCheckBox *_outlierEliminate;
+	QDoubleSpinBox *_pauseSpeed;
+	QSpinBox *_pauseInterval;
+	// POI
+	QDoubleSpinBox *_poiRadius;
+	// System
+	QSpinBox *_pixmapCache;
+	QCheckBox *_useOpenGL;
+	// Print/Export
+	QCheckBox *_name;
+	QCheckBox *_date;
+	QCheckBox *_distance;
+	QCheckBox *_time;
+	QCheckBox *_movingTime;
+	QCheckBox *_itemCount;
+	QCheckBox *_separateGraphPage;
+};
+
+#endif // OPTIONSDIALOG_H

src/ozf.cpp

@@ -0,0 +1,234 @@
+#include <QtEndian>
+#include <QFile>
+#include "ozf.h"
+
+
+#define OZF2_MAGIC  0x7778
+#define OZF3_MAGIC  0x7780
+#define SEPARATOR   0x77777777
+
+static const quint8 XKEY[] =
+{
+	0x2D, 0x4A, 0x43, 0xF1, 0x27, 0x9B, 0x69, 0x4F,
+	0x36, 0x52, 0x87, 0xEC, 0x5F, 0x42, 0x53, 0x22,
+	0x9E, 0x8B, 0x2D, 0x83, 0x3D, 0xD2, 0x84, 0xBA,
+	0xD8, 0x5B
+};
+
+static void decrypt(void *data, size_t size, quint8 init)
+{
+	for (size_t i = 0; i < size; i++)
+		reinterpret_cast<quint8*>(data)[i] ^= XKEY[i % sizeof(XKEY)] + init;
+}
+
+template<class T> bool OZF::readValue(T &val)
+{
+	T data;
+
+	if (_file.read((char*)&data, sizeof(T)) < (qint64)sizeof(T))
+		return false;
+
+	if (_decrypt)
+		decrypt(&data, sizeof(T), _key);
+
+	if (sizeof(T) > 1)
+		val = qFromLittleEndian(data);
+	else
+		val = data;
+
+	return true;
+}
+
+bool OZF::read(void *data, size_t size)
+{
+	if (_file.read((char*)data, size) < (qint64)size)
+		return false;
+
+	if (_decrypt)
+		decrypt(data, size, _key);
+
+	return true;
+}
+
+bool OZF::readKey()
+{
+	quint8 randomNumber, initial;
+	quint32 keyblock;
+
+
+	if (!_file.seek(14))
+		return false;
+	if (!readValue(randomNumber))
+		return false;
+
+	if (!_file.seek(162))
+		return false;
+	if (!readValue(initial))
+		return false;
+
+	_decrypt = true; _key = initial;
+	if (!_file.seek(15 + randomNumber))
+		return false;
+	if (!readValue(keyblock))
+		return false;
+
+	switch (keyblock & 0xFF) {
+		case 0xf1:
+			initial += 0x8a;
+			break;
+		case 0x18:
+		case 0x54:
+			initial += 0xa0;
+			break;
+		case 0x56:
+			initial += 0xb9;
+			break;
+		case 0x43:
+			initial += 0x6a;
+			break;
+		case 0x83:
+			initial += 0xa4;
+			break;
+		case 0xc5:
+			initial += 0x7e;
+			break;
+		case 0x38:
+			initial += 0xc1;
+			break;
+		default:
+			break;
+	}
+
+	_key = initial;
+
+	return true;
+}
+
+bool OZF::readHeaders()
+{
+	quint16 magic;
+	quint32 separator;
+
+	if (!readValue(magic))
+		return false;
+
+	if (magic == OZF2_MAGIC) {
+		if (!_file.seek(_file.pos() + 52))
+			return false;
+		if (!readValue(separator) || separator != SEPARATOR)
+			return false;
+	} else if (magic == OZF3_MAGIC) {
+		if (!readKey())
+			return false;
+	} else
+		return false;
+
+	return true;
+}
+
+bool OZF::readTileTable()
+{
+	quint32 offset, bgr0, w, h;
+	quint16 x, y;
+
+
+	if (!_file.seek(_file.size() - 4))
+		return false;
+	// table offset
+	if (!readValue(offset))
+		return false;
+	if (!_file.seek(offset))
+		return false;
+	// tiles offset (zoom level 0)
+	if (!readValue(offset))
+		return false;
+	if (!_file.seek(offset))
+		return false;
+
+	if (!readValue(w))
+		return false;
+	if (!readValue(h))
+		return false;
+	if (!readValue(x))
+		return false;
+	if (!readValue(y))
+		return false;
+
+	_size = QSize(w, h);
+	_dim = QSize(x, y);
+
+	_palette = QVector<quint32>(256);
+	if (!read(&(_palette[0]), sizeof(quint32) * 256))
+		return false;
+	for (int i = 0; i < _palette.size(); i++) {
+		bgr0 = qFromLittleEndian(_palette.at(i));
+
+		quint32 b = (bgr0 & 0x000000FF);
+		quint32 g = (bgr0 & 0x0000FF00) >> 8;
+		quint32 r = (bgr0 & 0x00FF0000) >> 16;
+
+		_palette[i] = 0xFF000000 | r << 16 | g << 8 | b;
+	}
+
+	_tiles = QVector<quint32>(_dim.width() * _dim.height() + 1);
+	for (int i = 0; i < _tiles.size(); i++)
+		if (!readValue(_tiles[i]))
+			return false;
+
+	return true;
+}
+
+bool OZF::load(const QString &path)
+{
+	if (_file.isOpen())
+		_file.close();
+
+	_file.setFileName(path);
+	if (!_file.open(QIODevice::ReadOnly))
+		return false;
+
+	if (!readHeaders()) {
+		qWarning("%s: not a OZF2/OZF3 file", qPrintable(_file.fileName()));
+		_file.close();
+		return false;
+	}
+
+	if (!readTileTable()) {
+		qWarning("%s: file format error", qPrintable(_file.fileName()));
+		_file.close();
+		_size = QSize();
+		return false;
+	}
+
+	return true;
+}
+
+QPixmap OZF::tile(int x, int y)
+{
+	Q_ASSERT(_file.isOpen());
+
+	int i = (y/tileSize().height()) * _dim.width() + (x/tileSize().width());
+	if (i >= _tiles.size() - 1 || i < 0)
+		return QPixmap();
+
+	int size = _tiles.at(i+1) - _tiles.at(i);
+	if (!_file.seek(_tiles.at(i)))
+		return QPixmap();
+
+	QByteArray ba = _file.read(size);
+	if (ba.size() != size)
+		return QPixmap();
+	if (_decrypt)
+		decrypt(ba.data(), qMin(16, ba.size()), _key);
+	quint32 bes = qToBigEndian(tileSize().width() * tileSize().height());
+	ba.prepend(QByteArray((char*)&bes, sizeof(bes)));
+	QByteArray uba = qUncompress(ba);
+	if (uba.size() != tileSize().width() * tileSize().height())
+		return QPixmap();
+
+	QImage img((const uchar*)uba.constData(), tileSize().width(),
+	  tileSize().height(), QImage::Format_Indexed8);
+	img.setColorTable(_palette);
+
+	return QPixmap::fromImage(img.mirrored());
+}

src/ozf.h

@@ -0,0 +1,43 @@
+#ifndef OZF_H
+#define OZF_H
+
+#include <QString>
+#include <QSize>
+#include <QColor>
+#include <QVector>
+#include <QFile>
+#include <QPixmap>
+
+class OZF
+{
+public:
+	OZF() : _decrypt(false), _key(0) {}
+
+	bool load(const QString &path);
+
+	QString fileName() const {return _file.fileName();}
+	bool isOpen() const {return _file.isOpen();}
+
+	QSize size() const {return _size;}
+	QSize tileSize() const {return QSize(64, 64);}
+	QPixmap tile(int x, int y);
+
+private:
+	template<class T> bool readValue(T &val);
+	bool read(void *data, size_t size);
+	bool readKey();
+	bool readHeaders();
+	bool readTileTable();
+
+	bool _decrypt;
+	quint8 _key;
+
+	QSize _size;
+	QSize _dim;
+	QVector<QRgb> _palette;
+	QVector<quint32> _tiles;
+
+	QFile _file;
+};
+
+#endif // OZF_H

src/palette.cpp

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

src/palette.h

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

src/path.cpp

@@ -0,0 +1,33 @@
+#include "path.h"
+
+QRectF Path::boundingRect() const
+{
+	if (size() < 2)
+		return QRectF();
+
+	QPointF topLeft(at(0).coordinates().lon(), at(0).coordinates().lat());
+	QPointF bottomRight(topLeft);
+
+	for (int i = 1; i < size(); i++) {
+		qreal x = at(i).coordinates().lon();
+		qreal y = at(i).coordinates().lat();
+
+		if (x < topLeft.x())
+			topLeft.setX(x);
+		if (y < topLeft.y())
+			topLeft.setY(y);
+		if (x > bottomRight.x())
+			bottomRight.setX(x);
+		if (y > bottomRight.y())
+			bottomRight.setY(y);
+	}
+	return QRectF(topLeft, bottomRight);
+}
+
+QDebug operator<<(QDebug dbg, const PathPoint &point)
+{
+	dbg.nospace() << "PathPoint(" << point.distance() << ", "
+	  << point.coordinates() << ")";
+
+	return dbg.maybeSpace();
+}

src/path.h

@@ -2,8 +2,33 @@
 #define PATH_H
 
 #include <QVector>
+#include <QRectF>
 #include "coordinates.h"
 
-typedef QVector<Coordinates> Path;
+class PathPoint
+{
+public:
+	PathPoint() :
+	  _coordinates(Coordinates()), _distance(NAN) {}
+	PathPoint(const Coordinates &coordinates, qreal distance)
+	  : _coordinates(coordinates), _distance(distance) {}
+
+	const Coordinates &coordinates() const {return _coordinates;}
+	qreal distance() const {return _distance;}
+
+private:
+	Coordinates _coordinates;
+	qreal _distance;
+};
+
+Q_DECLARE_TYPEINFO(PathPoint, Q_PRIMITIVE_TYPE);
+QDebug operator<<(QDebug dbg, const PathPoint &point);
+
+
+class Path : public QVector<PathPoint>
+{
+public:
+	QRectF boundingRect() const;
+};
 
 #endif // PATH_H