Improved digital zoom/fullscreen interaction

Update gpxsee_sv.ts

README.md

@@ -1,17 +1,19 @@
 # GPXSee
-GPXSee is a Qt-based application for visualizing and analyzing GPX, TCX, FIT,
-IGC and KML files.
+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.
+## Features
+* User-definable online maps.
+* Offline maps (image-based OziExplorer maps and tiled TrekBuddy maps/atlases).
 * Elevation, speed, heart rate, cadence, power and temperature graphs.
 * Support for multiple tracks in one view.
 * Support for POI files.
 * Print/export to PDF.
-* Full-screen mode
+* Full-screen mode.
 * Native GUI for Windows, Mac OS X and Linux.
-* Opens GPX, TCX, FIT, KML, IGC and Garmin CSV files.
+* 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
@@ -28,8 +30,8 @@ nmake release
 ```
 
 ## Binaries
-* Windows & OS X builds: http://sourceforge.net/projects/gpxsee
-* Linux packages: https://build.opensuse.org/project/repositories/home:tumic:GPXSee
+* [Windows & OS X builds](http://sourceforge.net/projects/gpxsee)
+* [Linux packages](http://software.opensuse.org/download.html?project=home%3Atumic%3AGPXSee&package=gpxsee)
 
 ## 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 = 3.2
+VERSION = 4.2
 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 \
@@ -20,6 +22,7 @@ HEADERS += src/config.h \
     src/sliderinfoitem.h \
     src/filebrowser.h \
     src/map.h \
+    src/onlinemap.h \
     src/maplist.h \
     src/downloader.h \
     src/units.h \
@@ -70,7 +73,25 @@ HEADERS += src/config.h \
     src/cadencegraph.h \
     src/powergraph.h \
     src/igcparser.h \
-    src/nmeaparser.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/mapdir.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
 SOURCES += src/main.cpp \
     src/gui.cpp \
     src/poi.cpp \
@@ -82,7 +103,7 @@ SOURCES += src/main.cpp \
     src/speedgraph.cpp \
     src/sliderinfoitem.cpp \
     src/filebrowser.cpp \
-    src/map.cpp \
+    src/onlinemap.cpp \
     src/maplist.cpp \
     src/downloader.cpp \
     src/scaleitem.cpp \
@@ -121,9 +142,24 @@ SOURCES += src/main.cpp \
     src/powergraph.cpp \
     src/igcparser.cpp \
     src/path.cpp \
-    src/nmeaparser.cpp
+    src/nmeaparser.cpp \
+    src/optionsdialog.cpp \
+    src/colorbox.cpp \
+    src/stylecombobox.cpp \
+    src/emptymap.cpp \
+    src/offlinemap.cpp \
+    src/mapdir.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
 RESOURCES += gpxsee.qrc
-TRANSLATIONS = lang/gpxsee_cs.ts
+TRANSLATIONS = lang/gpxsee_cs.ts \
+    lang/gpxsee_sv.ts
 macx {
     ICON = icons/gpxsee.icns
     QMAKE_INFO_PLIST = Info.plist

gpxsee.qrc

@@ -15,6 +15,11 @@
         <file>icons/arrow-right-double.png</file>
         <file>icons/view-fullscreen.png</file>
         <file>icons/office-chart-line-stacked.png</file>
+        <file>icons/preferences-desktop-display.png</file>
+        <file>icons/flag_48.png</file>
+        <file>icons/system-run.png</file>
+        <file>icons/document-print-preview.png</file>
         <file>lang/gpxsee_cs.qm</file>
+        <file>lang/gpxsee_sv.qm</file>
     </qresource>
 </RCC>

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 "3.2"
+!define VERSION "4.2"
 
 ; 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"
@@ -55,9 +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
   
@@ -122,14 +137,15 @@ Section "GPXSee (required)" SEC_APP
 
 SectionEnd
 
-Section "QT libs" SEC_QT
+Section "QT framework" SEC_QT
+
+  SectionIn RO
 
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
   File "Qt5Widgets.dll"
   File "Qt5PrintSupport.dll"
   File "Qt5Network.dll"
-  File "libGLESv2.dll"
   File /r "platforms"
   File /r "imageformats"
   File /r "printsupport"
@@ -138,6 +154,8 @@ SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
+  SectionIn RO
+
   DetailPrint "Checking whether Visual C++ 2015 Redistributable is already installed..."
   ${If} ${RunningX64}
     ReadRegDword $R0 HKLM "SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x86" "Installed"
@@ -153,10 +171,26 @@ 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
@@ -199,15 +233,21 @@ 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 "3.2"
+!define VERSION "4.2"
 
 ; 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"
@@ -55,7 +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}  
@@ -65,7 +79,7 @@ Function .onInit
 FunctionEnd 
 
 ; The stuff to install
-Section "GPXSee (required)" SEC_APP
+Section "GPXSee" SEC_APP
 
   SectionIn RO
   
@@ -92,7 +106,7 @@ Section "GPXSee (required)" SEC_APP
   WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
 
   ; Write the uninstall keys for Windows
-  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee (x64)"
   WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
   WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
   WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
@@ -130,14 +144,15 @@ Section "GPXSee (required)" SEC_APP
 
 SectionEnd
 
-Section "QT libs" SEC_QT
+Section "QT framework" SEC_QT
+
+  SectionIn RO
 
   File "Qt5Core.dll"
   File "Qt5Gui.dll"
   File "Qt5Widgets.dll"
   File "Qt5PrintSupport.dll"
   File "Qt5Network.dll"
-  File "libGLESv2.dll"
   File /r "platforms"
   File /r "imageformats"
   File /r "printsupport"
@@ -146,6 +161,8 @@ SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
+  SectionIn RO
+
   DetailPrint "Checking whether Visual C++ 2015 Redistributable is already installed..."
   ReadRegDword $R0 HKLM "SOFTWARE\Wow6432Node\Microsoft\VisualStudio\14.0\VC\Runtimes\x64" "Installed"
   StrCmp $R0 "1" 0 +3
@@ -156,10 +173,26 @@ 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
@@ -203,15 +236,21 @@ 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 +1,3 @@
+Open Topo Map	https://a.tile.opentopomap.org/$z/$x/$y.png
 Thunderforest	http://tile.thunderforest.com/outdoors/$z/$x/$y.png
 Open Street Map	http://tile.openstreetmap.org/$z/$x/$y.png

src/app.cpp

@@ -3,23 +3,30 @@
 #include <QLocale>
 #include <QFileOpenEvent>
 #include <QNetworkProxyFactory>
+#include <QPixmapCache>
+#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);
+	QPixmapCache::setCacheLimit(65536);
+	OnlineMap::setDownloader(new Downloader(this));
+	OPENGL_SET_SAMPLES(4);
 
 	_gui = new GUI();
 }
@@ -27,7 +34,6 @@ 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 +1,280 @@
+#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 QFileInfoList &files)
+{
+	for (int i = 0; i < files.count(); i++) {
+		const QString &fileName = files.at(i).fileName();
+		if (fileName.endsWith(".tar")) {
+			if (!tar.load(files.at(i).absoluteFilePath())) {
+				qWarning("%s: %s: error loading tar file", qPrintable(_name),
+				  qPrintable(fileName));
+				return false;
+			}
+			QStringList tarFiles = tar.files();
+			for (int j = 0; j < tarFiles.size(); j++)
+				if (tarFiles.at(j).endsWith(".tba"))
+					return true;
+		} else if (fileName.endsWith(".tba"))
+			return true;
+	}
+
+	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 &path, QObject *parent) : Map(parent)
+{
+	Tar tar;
+
+	_valid = false;
+	_zoom = 0;
+
+	QFileInfo fi(path);
+	_name = fi.fileName();
+
+	QDir dir(path);
+	QFileInfoList files = dir.entryInfoList(QDir::Files);
+	if (!isAtlas(tar, files))
+		return;
+
+	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++) {
+			OfflineMap *map;
+			if (tar.isOpen())
+				map = new OfflineMap(tar, maps.at(i).absoluteFilePath(), this);
+			else
+				map = new OfflineMap(maps.at(i).absoluteFilePath(), this);
+			if (map->isValid())
+				_maps.append(map);
+		}
+	}
+	if (_maps.isEmpty()) {
+		qWarning("%s: No usable maps available", qPrintable(_name));
+		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;
+
+	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) const
+{
+	int idx = _zooms.at(_zoom).first;
+
+	for (int i = _zooms.at(_zoom).first; i <= _zooms.at(_zoom).second; i++) {
+		if (_bounds.at(i).first.contains(_maps.at(i)->ll2pp(c))) {
+			idx = i;
+			break;
+		}
+	}
+
+	QPointF p = _maps.at(idx)->ll2xy(c);
+	return p + _bounds.at(idx).second.topLeft();
+}
+
+Coordinates Atlas::xy2ll(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;
+		}
+	}
+
+	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);
+}

src/atlas.h

@@ -0,0 +1,49 @@
+#ifndef ATLAS_H
+#define ATLAS_H
+
+#include <QFileInfoList>
+#include "map.h"
+#include "offlinemap.h"
+
+
+class Atlas : public Map
+{
+	Q_OBJECT
+
+public:
+	Atlas(const QString &path, 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) const;
+	Coordinates xy2ll(const QPointF &p) const;
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	bool isValid() {return _valid;}
+
+private:
+	void draw(QPainter *painter, const QRectF &rect, int mapIndex);
+	bool isAtlas(Tar &tar, const QFileInfoList &files);
+	void computeZooms();
+	void computeBounds();
+
+	QString _name;
+	bool _valid;
+
+	QList<OfflineMap*> _maps;
+	QVector<QPair<int, int> > _zooms;
+	QVector<QPair<QRectF, QRectF> > _bounds;
+	int _zoom;
+};
+
+#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

@@ -14,6 +14,7 @@
 #define SCREEN_DPI      96.0
 
 #define MAP_FILE        QString("maps.txt")
+#define MAP_DIR         QString("maps")
 #define POI_DIR         QString("POI")
 
 #if defined(Q_OS_WIN32)
@@ -28,8 +29,10 @@
 #define GLOBAL_DIR      QString("/usr/share/gpxsee")
 #endif
 
+#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_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")

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/data.cpp

@@ -82,9 +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/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 +1,96 @@
+#include <cmath>
+#include <QString>
+#include "wgs84.h"
+#include "ellipsoid.h"
+
+
+#define INTERNATIONAL_RADIUS     6378388.0
+#define INTERNATIONAL_FLATTENING (1.0/297.0)
+#define KRASSOVSKY_RADIUS        6378245.0
+#define KRASSOVSKY_FLATTENING    (1.0/298.3)
+#define BESSEL_RADIUS            6377397.155
+#define BESSEL_FLATTENING        (1.0/299.1528128)
+#define GRS80_RADIUS             6378137.0
+#define GRS80_FLATTENING         (1.0/298.257222101)
+#define WGS70_RADIUS             6378135.0
+#define WGS70_FLATTENING         (1.0/298.26)
+#define SAD69_RADIUS             6378160.0
+#define SAD69_FLATTENING         (1.0/298.25)
+
+
+#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
+
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
+
+typedef struct {
+	const char *name;
+	double radius;
+	double flattening;
+} Entry;
+
+static Entry list[] = {
+	{"S42", KRASSOVSKY_RADIUS, KRASSOVSKY_FLATTENING},
+	{"Pulkovo 1942", KRASSOVSKY_RADIUS, KRASSOVSKY_FLATTENING},
+	{"European 1950", INTERNATIONAL_RADIUS, INTERNATIONAL_FLATTENING},
+	{"European 1979", INTERNATIONAL_RADIUS, INTERNATIONAL_FLATTENING},
+	{"NZGD1949", INTERNATIONAL_RADIUS, INTERNATIONAL_FLATTENING},
+	{"NAD27", BESSEL_RADIUS, BESSEL_FLATTENING},
+	{"NAD83", GRS80_RADIUS, GRS80_FLATTENING},
+	{"WGS 72", WGS70_RADIUS, WGS70_FLATTENING},
+	{"South American 1969", SAD69_RADIUS, SAD69_FLATTENING}
+};
+
+
+Ellipsoid::Ellipsoid()
+{
+	_radius = WGS84_RADIUS;
+	_flattening = WGS84_FLATTENING;
+}
+
+Ellipsoid::Ellipsoid(const QString &datum)
+{
+	for (size_t i = 0; i < ARRAY_SIZE(list); i++) {
+		if (datum.startsWith(list[i].name)) {
+			_radius = list[i].radius;
+			_flattening = list[i].flattening;
+			return;
+		}
+	}
+
+	_radius = WGS84_RADIUS;
+	_flattening = WGS84_FLATTENING;
+}
+
+double Ellipsoid::q(double b) const
+{
+	double e = sqrt(_flattening * (2. - _flattening));
+	double esb = e * sin(b);
+	return log(tan(M_PI_4 + b / 2.) * pow((1. - esb) / (1. + esb), e / 2.));
+}
+
+double Ellipsoid::iq(double q) const
+{
+	double e = sqrt(_flattening * (2. - _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;
+}
+
+double Ellipsoid::nradius(double phi) const
+{
+	double sin_phi = sin(phi);
+	return (_radius / sqrt(1. - (_flattening * (2. - _flattening)) * sin_phi
+	  * sin_phi));
+}

src/ellipsoid.h

@@ -0,0 +1,24 @@
+#ifndef ELLIPSOID_H
+#define ELLIPSOID_H
+
+class QString;
+
+class Ellipsoid
+{
+public:
+	Ellipsoid();
+	Ellipsoid(const QString &datum);
+
+	double radius() const {return _radius;}
+	double flattening() const {return _flattening;}
+
+	double q(double b) const;
+	double iq(double q) const;
+	double nradius(double phi) const;
+
+private:
+	double _radius;
+	double _flattening;
+};
+
+#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) const
+{
+	QPointF m = Mercator().ll2xy(c);
+	return QPointF(m.x() / _scale, m.y() / -_scale);
+}
+
+Coordinates EmptyMap::xy2ll(const QPointF &p) const
+{
+	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) const;
+	Coordinates xy2ll(const QPointF &p) const;
+
+	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

@@ -36,8 +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)

src/graphitem.cpp

@@ -2,20 +2,20 @@
 #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;
 
+	setZValue(1.0);
+
 	updatePath();
 	updateBounds();
 }
@@ -51,6 +51,14 @@ 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;
@@ -130,10 +138,10 @@ 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);
 	}
 

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;

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)));
@@ -431,3 +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 +7,11 @@
 #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;
@@ -29,7 +31,7 @@ class GUI : public QMainWindow
 	Q_OBJECT
 
 public:
-	GUI(QWidget *parent = 0);
+	GUI();
 	~GUI();
 
 	bool openFile(const QString &fileName);
@@ -45,7 +47,6 @@ private slots:
 	void reloadFile();
 	void openPOIFile();
 	void closePOIFiles();
-	void showMap(bool show);
 	void showGraphs(bool show);
 	void showGraphGrids(bool show);
 	void showToolbars(bool show);
@@ -55,6 +56,7 @@ private slots:
 	void clearMapCache();
 	void nextMap();
 	void prevMap();
+	void openOptions();
 
 	void mapChanged(int);
 	void graphChanged(int);
@@ -65,6 +67,8 @@ 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);}
@@ -100,11 +104,15 @@ 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();
@@ -152,6 +160,8 @@ private:
 	QAction *_firstAction;
 	QAction *_metricUnitsAction;
 	QAction *_imperialUnitsAction;
+	QAction *_totalTimeAction;
+	QAction *_movingTimeAction;
 	QAction *_nextMapAction;
 	QAction *_prevMapAction;
 	QAction *_showTracksAction;
@@ -159,6 +169,7 @@ private:
 	QAction *_showWaypointsAction;
 	QAction *_showWaypointLabelsAction;
 	QAction *_showRouteWaypointsAction;
+	QAction *_openOptionsAction;
 	QList<QAction*> _mapActions;
 	QList<QAction*> _poiFilesActions;
 
@@ -177,25 +188,25 @@ private:
 
 	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 +1,28 @@
 #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-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"
+
+// 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"
 
 #endif /* ICONS_H */

src/igcparser.cpp

@@ -110,7 +110,8 @@ bool IGCParser::readHRecord(const char *line, int len)
 		return false;
 	}
 
-	_date = QDate(2000 + y, m, d);
+	_date = QDate(y + 2000 < QDate::currentDate().year() ? 2000 + y : 1900 + y,
+	  m, d);
 	if (!_date.isValid()) {
 		_errorString = "Invalid date";
 		return false;

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/lambertconic.cpp

@@ -0,0 +1,46 @@
+#include <cmath>
+#include "rd.h"
+#include "lambertconic.h"
+
+
+LambertConic::LambertConic(const Ellipsoid &ellipsoid, double standardParallel1,
+  double standardParallel2, double centralParallel, double centralMeridian,
+  double scale, double falseEasting, double falseNorthing) : _e(ellipsoid)
+{
+	_cm = centralMeridian;
+	_fe = falseEasting;
+	_fn = falseNorthing;
+
+	double sp1 = deg2rad(standardParallel1);
+	double sp2 = deg2rad(standardParallel2);
+
+	double N1 = _e.nradius(sp1);
+	double N2 = _e.nradius(sp2);
+
+	_q0 = ellipsoid.q(deg2rad(centralParallel));
+	double q1 = _e.q(sp1);
+	double q2 = _e.q(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 - _e.q(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(_e.iq(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 centralParallel, double centralMeridian,
+	  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) const = 0;
+	virtual Coordinates xy2ll(const QPointF &p) const = 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/mapdir.cpp

@@ -0,0 +1,40 @@
+#include <QDir>
+#include "atlas.h"
+#include "offlinemap.h"
+#include "mapdir.h"
+
+QList<Map*> MapDir::load(const QString &path, QObject *parent)
+{
+	QList<Map*> maps;
+	QDir dir(path);
+
+
+	if (!dir.exists())
+		return maps;
+
+	if (!dir.isReadable()) {
+		qWarning("Map directory not readable: %s\n", qPrintable(path));
+		return maps;
+	}
+
+	QFileInfoList list = dir.entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
+	for (int i = 0; i < list.size(); i++) {
+		QFileInfo fileInfo = list.at(i);
+
+		Atlas *atlas = new Atlas(fileInfo.absoluteFilePath(), parent);
+		if (atlas->isValid())
+			maps.append(atlas);
+		else {
+			delete atlas;
+
+			OfflineMap *map = new OfflineMap(fileInfo.absoluteFilePath(),
+			  parent);
+			if (map->isValid())
+				maps.append(map);
+			else
+				delete map;
+		}
+	}
+
+	return maps;
+}

src/mapdir.h

@@ -0,0 +1,16 @@
+#ifndef MAPDIR_H
+#define MAPDIR_H
+
+#include <QList>
+#include <QString>
+
+class QObject;
+class Map;
+
+class MapDir
+{
+public:
+	static QList<Map*> load(const QString &path, QObject *parent = 0);
+};
+
+#endif // MAPDIR_H

src/maplist.cpp

@@ -1,23 +1,23 @@
 #include <QFile>
 #include <QFileInfo>
-#include "map.h"
+#include "onlinemap.h"
 #include "maplist.h"
 
 
-QList<Map*> MapList::load(QObject *parent, const QString &fileName)
+QList<Map*> MapList::load(const QString &fileName, QObject *parent)
 {
-	QList<Map*> mapList;
+	QList<Map*> maps;
 	QFileInfo fi(fileName);
 
 	if (!fi.exists())
-		return mapList;
+		return maps;
 
 	QFile file(fileName);
 
 	if (!file.open(QFile::ReadOnly | QFile::Text)) {
-		fprintf(stderr, "Error opening map list file: %s: %s\n",
+		qWarning("Error opening map list file: %s: %s\n",
 		  qPrintable(fileName), qPrintable(file.errorString()));
-		return mapList;
+		return maps;
 	}
 
 	int ln = 0;
@@ -26,16 +26,16 @@ QList<Map*> MapList::load(QObject *parent, const QString &fileName)
 		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);
+			qWarning("Invalid map list entry on line %d\n", ln);
 			continue;
 		}
 
 		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())));
+		maps.append(new OnlineMap(QString::fromUtf8(ba1.data(), ba1.size()),
+		  QString::fromLatin1(ba2.data(), ba2.size()), parent));
 	}
 
-	return mapList;
+	return maps;
 }

src/maplist.h

@@ -3,15 +3,14 @@
 
 #include <QList>
 #include <QString>
-#include <QObject>
 
+class QObject;
 class Map;
 
 class MapList
 {
 public:
-	static QList<Map*> load(QObject *parent = 0,
-	  const QString &fileName = QString());
+	static QList<Map*> load(const QString &fileName, QObject *parent = 0);
 };
 
 #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

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

src/misc.h

@@ -1,7 +1,10 @@
 #ifndef MISC_H
 #define MISC_H
 
+#include <QRectF>
+
 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

@@ -7,10 +7,10 @@ static bool validSentence(const char  *line, int len)
 {
 	const char *lp;
 
-	if (len < 10 || line[0] != '$')
+	if (len < 12 || line[0] != '$')
 		return false;
 
-	for (lp = line + len - 1; lp > line; lp--)
+	for (lp = line + len - 1; lp > line + 3; lp--)
 		if (!::isspace(*lp))
 			break;
 	if (*(lp-2) != '*' || !::isalnum(*(lp-1)) || !::isalnum(*(lp)))
@@ -313,7 +313,7 @@ bool NMEAParser::readGGA(const char *line, int len)
 						return false;
 					break;
 				case 3:
-					if (!readNS(vp, lp - vp, lon))
+					if (!readNS(vp, lp - vp, lat))
 						return false;
 					break;
 				case 4:

src/offlinemap.cpp

@@ -0,0 +1,574 @@
+#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 "ellipsoid.h"
+#include "latlon.h"
+#include "mercator.h"
+#include "transversemercator.h"
+#include "utm.h"
+#include "lambertconic.h"
+#include "offlinemap.h"
+
+
+int OfflineMap::parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
+  QString &projection, ProjectionSetup &setup, QString &datum)
+{
+	bool res;
+	int ln = 1;
+
+
+	if (!device.open(QIODevice::ReadOnly))
+		return -1;
+
+	while (!device.atEnd()) {
+		QByteArray line = device.readLine();
+
+		if (ln == 1) {
+			if (!line.trimmed().startsWith("OziExplorer Map Data File"))
+				return ln;
+		} 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;
+				if (ll && list.at(11).trimmed() == "W")
+					lond = -lond;
+
+				int zone = list.at(13).trimmed().toInt(&res);
+				if (!res)
+					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")
+					zone = -zone;
+
+				ReferencePoint p;
+				p.xy = QPoint(x, y);
+				if (ll) {
+					p.ll = Coordinates(lond + lonm/60.0, latd + latm/60.0);
+					points.append(p);
+				} else if (pp) {
+					p.pp = QPointF(ppx, ppy);
+					setup.zone = zone;
+					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.centralParallel = list.at(1).trimmed().toFloat(&res);
+				if (!res)
+					setup.centralParallel = 0;
+				setup.centralMeridian = list.at(2).trimmed().toFloat(&res);
+				if (!res)
+					setup.centralMeridian = 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::createProjection(const QString &datum,
+  const QString &projection, const ProjectionSetup &setup,
+  QList<ReferencePoint> &points)
+{
+	if (points.count() < 2) {
+		qWarning("%s: insufficient number of reference points",
+		  qPrintable(_name));
+		return false;
+	}
+
+	if (projection == "Mercator")
+		_projection = new Mercator();
+	else if (projection == "Transverse Mercator")
+		_projection = new TransverseMercator(Ellipsoid(datum),
+		  setup.centralMeridian, setup.scale, setup.falseEasting,
+		  setup.falseNorthing);
+	else if (projection == "Latitude/Longitude")
+		_projection = new LatLon();
+	else if (projection == "Lambert Conformal Conic")
+		_projection = new LambertConic(Ellipsoid(datum), setup.standardParallel1,
+		  setup.standardParallel2, setup.centralParallel, setup.centralMeridian,
+		  setup.scale, setup.falseEasting, setup.falseNorthing);
+	else if (projection == "(UTM) Universal Transverse Mercator") {
+		if (setup.zone)
+			_projection = new UTM(setup.zone);
+		else if (!points.first().ll.isNull())
+			_projection = new UTM(points.first().ll);
+		else {
+			qWarning("%s: Can not determine UTM zone", qPrintable(_name));
+			return false;
+		}
+	} else {
+		qWarning("%s: %s: unsupported map projection", qPrintable(_name),
+		  qPrintable(projection));
+		return false;
+	}
+
+	for (int i = 0; i < points.size(); i++)
+		if (points.at(i).ll.isNull())
+			points[i].ll = _projection->xy2ll(points.at(i).pp);
+
+	return true;
+}
+
+bool OfflineMap::computeTransformation(const QList<ReferencePoint> &points)
+{
+	Q_ASSERT(points.count() >= 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()) {
+		qWarning("%s: singular transformation matrix", qPrintable(_name));
+		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())
+		_imgPath = path + "/" + _imgPath;
+
+	QImageReader img(_imgPath);
+	_size = img.size();
+	if (!_size.isValid()) {
+		qWarning("%s: %s: error reading map image", qPrintable(_name),
+		  qPrintable(ii.absoluteFilePath()));
+		return false;
+	}
+
+	return true;
+}
+
+bool OfflineMap::getTileInfo(const QStringList &tiles, const QString &path)
+{
+	if (tiles.isEmpty()) {
+		qWarning("%s: empty tile set", qPrintable(_name));
+		return false;
+	}
+
+	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()) {
+				qWarning("%s: error retrieving tile size: %s: invalid image",
+				  qPrintable(_name), qPrintable(QFileInfo(tiles.at(i))
+				  .fileName()));
+				return false;
+			}
+
+			return true;
+		}
+	}
+
+	qWarning("%s: invalid tile names", qPrintable(_name));
+
+	return false;
+}
+
+bool OfflineMap::mapLoaded(int res)
+{
+	if (res) {
+		if (res == -2)
+			qWarning("%s: no map file found", qPrintable(_name));
+		else if (res == -1)
+			qWarning("%s: error opening map file", qPrintable(_name));
+		else
+			qWarning("%s: map file parse error on line: %d", qPrintable(_name),
+			  res);
+		return false;
+	}
+
+	return true;
+}
+
+bool OfflineMap::totalSizeSet()
+{
+	if (!_size.isValid()) {
+		qWarning("%s: missing total image size (IWH)", qPrintable(_name));
+		return false;
+	} else
+		return true;
+}
+
+OfflineMap::OfflineMap(const QString &path, QObject *parent) : Map(parent)
+{
+	int errorLine = -2;
+	QList<ReferencePoint> points;
+	QString proj, datum;
+	ProjectionSetup setup;
+
+
+	_valid = false;
+	_img = 0;
+	_projection = 0;
+	_resolution = 0;
+
+	QFileInfo fi(path);
+	_name = fi.fileName();
+
+	QDir dir(path);
+	QFileInfoList mapFiles = dir.entryInfoList(QDir::Files);
+	for (int i = 0; i < mapFiles.count(); i++) {
+		const QString &fileName = mapFiles.at(i).fileName();
+		if (fileName.endsWith(".tar")) {
+			if (!_tar.load(mapFiles.at(i).absoluteFilePath())) {
+				qWarning("%s: %s: error loading tar file", qPrintable(_name),
+				  qPrintable(fileName));
+				return;
+			}
+			QStringList tarFiles = _tar.files();
+			for (int j = 0; j < tarFiles.size(); j++) {
+				if (tarFiles.at(j).endsWith(".map")) {
+					QByteArray ba = _tar.file(tarFiles.at(j));
+					QBuffer buffer(&ba);
+					errorLine = parseMapFile(buffer, points, proj, setup, datum);
+					_imgPath = QString();
+					break;
+				}
+			}
+			break;
+		} else if (fileName.endsWith(".map")) {
+			QFile mapFile(mapFiles.at(i).absoluteFilePath());
+			errorLine = parseMapFile(mapFile, points, proj, setup, datum);
+			break;
+		}
+	}
+	if (!mapLoaded(errorLine))
+		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;
+	} else {
+		QDir set(fi.absoluteFilePath() + "/" + "set");
+		if (set.exists()) {
+			if (!totalSizeSet())
+				return;
+			if (!getTileInfo(set.entryList(), set.canonicalPath()))
+				return;
+			_imgPath = QString();
+		} else {
+			if (!getImageInfo(fi.absoluteFilePath()))
+				return;
+		}
+	}
+
+	_valid = true;
+}
+
+OfflineMap::OfflineMap(Tar &tar, const QString &path, QObject *parent)
+  : Map(parent)
+{
+	int errorLine = -2;
+	QList<ReferencePoint> points;
+	QString proj, datum;
+	ProjectionSetup setup;
+
+
+	_valid = false;
+	_img = 0;
+	_projection = 0;
+
+	QFileInfo fi(path);
+	_name = fi.fileName();
+
+	QFileInfo li(fi.absoluteDir().dirName());
+	QString prefix = li.fileName() + "/" + fi.fileName() + "/";
+	QStringList tarFiles = tar.files();
+	for (int j = 0; j < tarFiles.size(); j++) {
+		if (tarFiles.at(j).startsWith(prefix)) {
+			QByteArray ba = tar.file(tarFiles.at(j));
+			QBuffer buffer(&ba);
+			errorLine = parseMapFile(buffer, points, proj, setup, datum);
+			break;
+		}
+	}
+	if (!mapLoaded(errorLine))
+		return;
+
+	if (!createProjection(datum, proj, setup, points))
+		return;
+	if (!totalSizeSet())
+		return;
+	if (!computeTransformation(points))
+		return;
+	computeResolution(points);
+
+	QDir dir(path);
+	QFileInfoList mapFiles = dir.entryInfoList(QDir::Files);
+	for (int i = 0; i < mapFiles.count(); i++) {
+		const QString &fileName = mapFiles.at(i).absoluteFilePath();
+		if (fileName.endsWith(".tar"))
+			_tarPath = fileName;
+	}
+
+	_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: %s: error loading tar file", qPrintable(_name),
+			  qPrintable(_tarPath));
+			return;
+		}
+		getTileInfo(_tar.files());
+		return;
+	}
+
+	if (!_img && !_imgPath.isNull()) {
+		_img = new QImage(_imgPath);
+		if (_img->isNull())
+			qWarning("%s: error loading map image", qPrintable(_imgPath));
+	}
+}
+
+void OfflineMap::unload()
+{
+	if (_img) {
+		delete _img;
+		_img = 0;
+	}
+}
+
+QRectF OfflineMap::bounds() const
+{
+	return QRectF(QPointF(0, 0), _size);
+}
+
+qreal OfflineMap::zoomFit(const QSize &size, const QRectF &br)
+{
+	Q_UNUSED(size);
+	Q_UNUSED(br);
+
+	return 1.0;
+}
+
+qreal OfflineMap::resolution(const QPointF &p) const
+{
+	Q_UNUSED(p);
+
+	return _resolution;
+}
+
+qreal OfflineMap::zoomIn()
+{
+	return 1.0;
+}
+
+qreal OfflineMap::zoomOut()
+{
+	return 1.0;
+}
+
+void OfflineMap::draw(QPainter *painter, const QRectF &rect)
+{
+	if (_tileSize.isValid()) {
+		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();
+				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);
+			}
+		}
+	} else {
+		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);
+		}
+	}
+}

src/offlinemap.h

@@ -0,0 +1,97 @@
+#ifndef OFFLINEMAP_H
+#define OFFLINEMAP_H
+
+#include <QTransform>
+#include "map.h"
+#include "tar.h"
+#include "coordinates.h"
+#include "projection.h"
+
+
+class QIODevice;
+class QImage;
+
+class OfflineMap : public Map
+{
+	Q_OBJECT
+
+public:
+	OfflineMap(const QString &path, QObject *parent = 0);
+	OfflineMap(Tar &tar, const QString &path, QObject *parent = 0);
+	~OfflineMap();
+
+	const QString &name() const {return _name;}
+
+	QRectF bounds() const;
+	qreal resolution(const QPointF &p) const;
+
+	qreal zoom() const {return 1.0;}
+	qreal zoomFit(const QSize &size, const QRectF &br);
+	qreal zoomIn();
+	qreal zoomOut();
+
+	QPointF ll2xy(const Coordinates &c) const
+	  {return _transform.map(_projection->ll2xy(c));}
+	Coordinates xy2ll(const QPointF &p) const
+	  {return _projection->xy2ll(_inverted.map(p));}
+
+	void draw(QPainter *painter, const QRectF &rect);
+
+	void load();
+	void unload();
+
+	bool isValid() {return _valid;}
+
+	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 centralParallel;
+		double centralMeridian;
+		double scale;
+		double falseEasting;
+		double falseNorthing;
+		double standardParallel1;
+		double standardParallel2;
+		int zone;
+	} ProjectionSetup;
+
+	int parseMapFile(QIODevice &device, QList<ReferencePoint> &points,
+	  QString &projection, ProjectionSetup &setup, QString &datum);
+	bool mapLoaded(int res);
+	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);
+
+	QString _name;
+	QSize _size;
+	Projection *_projection;
+	QTransform _transform, _inverted;
+	qreal _resolution;
+
+	Tar _tar;
+	QString _tarPath;
+	QImage *_img;
+	QString _imgPath;
+	QSize _tileSize;
+	QString _tileName;
+
+	bool _valid;
+};
+
+#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) const
+{
+	QPointF m = Mercator().ll2xy(c);
+	return QPointF(m.x() / _scale, m.y() / -_scale);
+}
+
+Coordinates OnlineMap::xy2ll(const QPointF &p) const
+{
+	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) const;
+	Coordinates xy2ll(const QPointF &p) const;
+
+	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 +1,288 @@
+#include <QVBoxLayout>
+#include <QFormLayout>
+#include <QDialogButtonBox>
+#include <QListWidget>
+#include <QListWidgetItem>
+#include <QStackedWidget>
+#include <QTabWidget>
+#include <QSpinBox>
+#include <QGroupBox>
+#include <QCheckBox>
+#include <QComboBox>
+#include <QSysInfo>
+#include "config.h"
+#include "icons.h"
+#include "colorbox.h"
+#include "stylecombobox.h"
+#include "optionsdialog.h"
+
+#define MENU_MARGIN 20
+#define MENU_ICON_SIZE 32
+
+
+QWidget *OptionsDialog::createAppearancePage()
+{
+	_baseColor = new ColorBox();
+	_baseColor->setColor(_options->palette.color());
+	_colorOffset = new QDoubleSpinBox();
+	_colorOffset->setMinimum(0);
+	_colorOffset->setMaximum(1.0);
+	_colorOffset->setSingleStep(0.01);
+	_colorOffset->setValue(_options->palette.shift());
+
+	QFormLayout *paletteLayout = new QFormLayout();
+	paletteLayout->addRow(tr("Base color:"), _baseColor);
+	paletteLayout->addRow(tr("Palette shift:"), _colorOffset);
+
+	QWidget *colorTab = new QWidget();
+	colorTab->setLayout(paletteLayout);
+
+
+	_trackWidth = new QSpinBox();
+	_trackWidth->setValue(_options->trackWidth);
+	_trackWidth->setMinimum(1);
+	_trackStyle = new StyleComboBox();
+	_trackStyle->setValue(_options->trackStyle);
+	QFormLayout *trackLayout = new QFormLayout();
+	trackLayout->addRow(tr("Track width:"), _trackWidth);
+	trackLayout->addRow(tr("Track style:"), _trackStyle);
+#ifndef Q_OS_MAC
+	QGroupBox *trackBox = new QGroupBox(tr("Tracks"));
+	trackBox->setLayout(trackLayout);
+#endif
+
+	_routeWidth = new QSpinBox();
+	_routeWidth->setValue(_options->routeWidth);
+	_routeWidth->setMinimum(1);
+	_routeStyle = new StyleComboBox();
+	_routeStyle->setValue(_options->routeStyle);
+	QFormLayout *routeLayout = new QFormLayout();
+	routeLayout->addRow(tr("Route width:"), _routeWidth);
+	routeLayout->addRow(tr("Route style:"), _routeStyle);
+#ifndef Q_OS_MAC
+	QGroupBox *routeBox = new QGroupBox(tr("Routes"));
+	routeBox->setLayout(routeLayout);
+#endif // Q_OS_MAC
+
+	_pathAA = new QCheckBox(tr("Use anti-aliasing"));
+	_pathAA->setChecked(_options->pathAntiAliasing);
+	QFormLayout *pathAALayout = new QFormLayout();
+	pathAALayout->addWidget(_pathAA);
+
+	QWidget *pathTab = new QWidget();
+	QVBoxLayout *pathTabLayout = new QVBoxLayout();
+#ifdef Q_OS_MAC
+	QFrame *l1 = new QFrame();
+	l1->setFrameShape(QFrame::HLine);
+	l1->setFrameShadow(QFrame::Sunken);
+	QFrame *l2 = new QFrame();
+	l2->setFrameShape(QFrame::HLine);
+	l2->setFrameShadow(QFrame::Sunken);
+
+	pathTabLayout->addLayout(trackLayout);
+	pathTabLayout->addWidget(l1);
+	pathTabLayout->addLayout(routeLayout);
+	pathTabLayout->addWidget(l2);
+#else
+	pathTabLayout->addWidget(trackBox);
+	pathTabLayout->addWidget(routeBox);
+#endif
+	pathTabLayout->addLayout(pathAALayout);
+	pathTab->setLayout(pathTabLayout);
+
+	_graphWidth = new QSpinBox();
+	_graphWidth->setValue(_options->graphWidth);
+	_graphWidth->setMinimum(1);
+	QFormLayout *graphLayout = new QFormLayout();
+	graphLayout->addRow(tr("Line width:"), _graphWidth);
+
+	_graphAA = new QCheckBox(tr("Use anti-aliasing"));
+	_graphAA->setChecked(_options->graphAntiAliasing);
+	QFormLayout *graphAALayout = new QFormLayout();
+	graphAALayout->addWidget(_graphAA);
+
+
+	QWidget *graphTab = new QWidget();
+	QVBoxLayout *graphTabLayout = new QVBoxLayout();
+	graphTabLayout->addLayout(graphLayout);
+	graphTabLayout->addLayout(graphAALayout);
+	graphTabLayout->addStretch();
+	graphTab->setLayout(graphTabLayout);
+
+	QTabWidget *appearancePage = new QTabWidget();
+	appearancePage->addTab(colorTab, tr("Colors"));
+	appearancePage->addTab(pathTab, tr("Paths"));
+	appearancePage->addTab(graphTab, tr("Graphs"));
+
+	return appearancePage;
+}
+
+QWidget *OptionsDialog::createPOIPage()
+{
+	_poiRadius = new QDoubleSpinBox();
+	_poiRadius->setSingleStep(1);
+	_poiRadius->setDecimals(1);
+	if (_options->units == Imperial) {
+		_poiRadius->setValue(_options->poiRadius / MIINM);
+		_poiRadius->setSuffix(UNIT_SPACE + tr("mi"));
+	} else {
+		_poiRadius->setValue(_options->poiRadius / KMINM);
+		_poiRadius->setSuffix(UNIT_SPACE + tr("km"));
+	}
+
+	QFormLayout *poiLayout = new QFormLayout();
+	poiLayout->addRow(tr("POI radius:"), _poiRadius);
+
+	QWidget *poiTab = new QWidget();
+	poiTab->setLayout(poiLayout);
+
+	QTabWidget *poiPage = new QTabWidget();
+	poiPage->addTab(poiTab, tr("POI"));
+
+	return poiPage;
+}
+
+QWidget *OptionsDialog::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);
+
+	QFormLayout *systemLayout = new QFormLayout();
+	systemLayout->addWidget(_useOpenGL);
+
+	QWidget *systemTab = new QWidget();
+	systemTab->setLayout(systemLayout);
+
+	QTabWidget *systemPage = new QTabWidget();
+	systemPage->addTab(systemTab, tr("System"));
+
+	return systemPage;
+}
+
+OptionsDialog::OptionsDialog(Options *options, QWidget *parent)
+  : QDialog(parent), _options(options)
+{
+	QStackedWidget *pages = new QStackedWidget();
+	pages->addWidget(createAppearancePage());
+	pages->addWidget(createPOIPage());
+	pages->addWidget(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(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();
+
+	if (_options->units == Imperial)
+		_options->poiRadius = _poiRadius->value() * MIINM;
+	else
+		_options->poiRadius = _poiRadius->value() * KMINM;
+
+	_options->useOpenGL = _useOpenGL->isChecked();
+
+	_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 +1,79 @@
+#ifndef OPTIONSDIALOG_H
+#define OPTIONSDIALOG_H
+
+#include <QDialog>
+#include "palette.h"
+#include "units.h"
+
+class ColorBox;
+class StyleComboBox;
+class QSpinBox;
+class QDoubleSpinBox;
+class QComboBox;
+class QCheckBox;
+
+struct Options {
+	// Appearance
+	Palette palette;
+	int trackWidth;
+	int routeWidth;
+	Qt::PenStyle trackStyle;
+	Qt::PenStyle routeStyle;
+	int graphWidth;
+	bool pathAntiAliasing;
+	bool graphAntiAliasing;
+	// POI
+	int poiRadius;
+	// System
+	bool useOpenGL;
+	// 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 *createPOIPage();
+	QWidget *createSystemPage();
+	QWidget *createExportPage();
+
+	Options *_options;
+
+	ColorBox *_baseColor;
+	QDoubleSpinBox *_colorOffset;
+	QSpinBox *_trackWidth;
+	StyleComboBox *_trackStyle;
+	QSpinBox *_routeWidth;
+	StyleComboBox *_routeStyle;
+	QCheckBox *_pathAA;
+	QSpinBox *_graphWidth;
+	QCheckBox *_graphAA;
+	QDoubleSpinBox *_poiRadius;
+	QCheckBox *_useOpenGL;
+	QCheckBox *_name;
+	QCheckBox *_date;
+	QCheckBox *_distance;
+	QCheckBox *_time;
+	QCheckBox *_movingTime;
+	QCheckBox *_itemCount;
+	QCheckBox *_separateGraphPage;
+};
+
+#endif // OPTIONSDIALOG_H

src/palette.cpp

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

src/palette.h

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

src/path.cpp

@@ -1,5 +1,29 @@
 #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() << ", "

src/path.h

@@ -2,6 +2,7 @@
 #define PATH_H
 
 #include <QVector>
+#include <QRectF>
 #include "coordinates.h"
 
 class PathPoint
@@ -23,6 +24,11 @@ private:
 Q_DECLARE_TYPEINFO(PathPoint, Q_PRIMITIVE_TYPE);
 QDebug operator<<(QDebug dbg, const PathPoint &point);
 
-typedef QVector<PathPoint> Path;
+
+class Path : public QVector<PathPoint>
+{
+public:
+	QRectF boundingRect() const;
+};
 
 #endif // PATH_H

src/pathitem.cpp

@@ -3,35 +3,48 @@
 #include <QCursor>
 #include <QPainter>
 #include "tooltip.h"
+#include "map.h"
+#include "misc.h"
 #include "pathitem.h"
 
 
-#define PATH_WIDTH  3
-#define HOVER_WIDTH 4
+PathItem::PathItem(const Path &path, Map *map, QGraphicsItem *parent)
+  : QGraphicsObject(parent)
+{
+	Q_ASSERT(path.count() >= 2);
+	_path = path;
+	_map = map;
+
+	updatePainterPath(map);
+	updateShape();
+
+	_width = 3;
+	QBrush brush(Qt::SolidPattern);
+	_pen = QPen(brush, _width);
+
+	_marker = new MarkerItem(this);
+	_marker->setPos(position(_path.at(0).distance()));
+	_marker->setFlag(QGraphicsItem::ItemIgnoresTransformations);
+	_md = _path.at(0).distance();
+
+	setCursor(Qt::ArrowCursor);
+	setAcceptHoverEvents(true);
+}
 
 void PathItem::updateShape()
 {
 	QPainterPathStroker s;
-	s.setWidth(HOVER_WIDTH * 1.0/scale());
-	_shape = s.createStroke(_path);
-
-	if (qMax(boundingRect().width(), boundingRect().height()) * scale() <= 768)
-		setCacheMode(QGraphicsItem::DeviceCoordinateCache);
-	else
-		setCacheMode(QGraphicsItem::NoCache);
+	s.setWidth((_width + 1) * 1.0/scale());
+	_shape = s.createStroke(_painterPath);
 }
 
-PathItem::PathItem(QGraphicsItem *parent) : QGraphicsObject(parent)
+void PathItem::updatePainterPath(Map *map)
 {
-	QBrush brush(Qt::SolidPattern);
-	_pen = QPen(brush, PATH_WIDTH);
+	_painterPath = QPainterPath();
 
-	_units = Metric;
-
-	_marker = new MarkerItem(this);
-
-	setCursor(Qt::ArrowCursor);
-	setAcceptHoverEvents(true);
+	_painterPath.moveTo(map->ll2xy(_path.first().coordinates()));
+	for (int i = 1; i < _path.size(); i++)
+		_painterPath.lineTo(map->ll2xy(_path.at(i).coordinates()));
 }
 
 void PathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
@@ -41,7 +54,7 @@ void PathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	Q_UNUSED(widget);
 
 	painter->setPen(_pen);
-	painter->drawPath(_path);
+	painter->drawPath(_painterPath);
 
 /*
 	QPen p = QPen(QBrush(Qt::red), 0);
@@ -50,15 +63,15 @@ void PathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 */
 }
 
-void PathItem::setScale(qreal scale)
+void PathItem::setMap(Map *map)
 {
+	_map = map;
 	prepareGeometryChange();
 
-	_pen.setWidthF(PATH_WIDTH * 1.0/scale);
-	QGraphicsItem::setScale(scale);
-	_marker->setScale(1.0/scale);
-
+	updatePainterPath(map);
 	updateShape();
+
+	_marker->setPos(position(_md));
 }
 
 void PathItem::setColor(const QColor &color)
@@ -67,41 +80,52 @@ void PathItem::setColor(const QColor &color)
 	update();
 }
 
-void PathItem::setUnits(enum Units units)
+void PathItem::setWidth(qreal width)
 {
-	_units = units;
+	prepareGeometryChange();
+
+	_width = width;
+	_pen.setWidthF(_width * 1.0/scale());
+
+	updateShape();
+}
+
+void PathItem::setStyle(Qt::PenStyle style)
+{
+	_pen.setStyle(style);
+	update();
 }
 
 QPointF PathItem::position(qreal x) const
 {
 	int low = 0;
-	int high = _distance.count() - 1;
+	int high = _path.count() - 1;
 	int mid = 0;
 
-
-	Q_ASSERT(_distance.count() == _path.elementCount());
 	Q_ASSERT(high > low);
-	Q_ASSERT(x >= _distance.at(low) && x <= _distance.at(high));
+	Q_ASSERT(x >= _path.at(low).distance() && x <= _path.at(high).distance());
 
 	while (low <= high) {
 		mid = low + ((high - low) / 2);
-		qreal val = _distance.at(mid);
+		qreal val = _path.at(mid).distance();
 		if (val > x)
 			high = mid - 1;
 		else if (val < x)
 			low = mid + 1;
 		else
-			return _path.elementAt(mid);
+			return _map->ll2xy(_path.at(mid).coordinates());
 	}
 
 	QLineF l;
 	qreal p1, p2;
-	if (_distance.at(mid) < x) {
-		l = QLineF(_path.elementAt(mid), _path.elementAt(mid+1));
-		p1 = _distance.at(mid); p2 = _distance.at(mid+1);
+	if (_path.at(mid).distance() < x) {
+		l = QLineF(_map->ll2xy(_path.at(mid).coordinates()),
+		  _map->ll2xy(_path.at(mid+1).coordinates()));
+		p1 = _path.at(mid).distance(); p2 = _path.at(mid+1).distance();
 	} else {
-		l = QLineF(_path.elementAt(mid-1), _path.elementAt(mid));
-		p1 = _distance.at(mid-1); p2 = _distance.at(mid);
+		l = QLineF(_map->ll2xy(_path.at(mid-1).coordinates()),
+		  _map->ll2xy(_path.at(mid).coordinates()));
+		p1 = _path.at(mid-1).distance(); p2 = _path.at(mid).distance();
 	}
 
 	return l.pointAt((x - p1) / (p2 - p1));
@@ -109,9 +133,11 @@ QPointF PathItem::position(qreal x) const
 
 void PathItem::moveMarker(qreal distance)
 {
-	if (distance >= _distance.first() && distance <= _distance.last()) {
+	if (distance >= _path.first().distance()
+	  && distance <= _path.last().distance()) {
 		_marker->setVisible(true);
 		_marker->setPos(position(distance));
+		_md = distance;
 	} else
 		_marker->setVisible(false);
 }
@@ -120,7 +146,7 @@ void PathItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 {
 	Q_UNUSED(event);
 
-	_pen.setWidthF(HOVER_WIDTH * 1.0/scale());
+	_pen.setWidthF((_width + 1) * 1.0/scale());
 	setZValue(zValue() + 1.0);
 	update();
 
@@ -131,7 +157,7 @@ void PathItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
 {
 	Q_UNUSED(event);
 
-	_pen.setWidthF(PATH_WIDTH * 1.0/scale());
+	_pen.setWidthF(_width * 1.0/scale());
 	setZValue(zValue() - 1.0);
 	update();
 

src/pathitem.h

@@ -4,26 +4,32 @@
 #include <QGraphicsObject>
 #include <QPen>
 #include "markeritem.h"
-#include "units.h"
+#include "path.h"
 
 
+class Map;
+
 class PathItem : public QGraphicsObject
 {
 	Q_OBJECT
 
 public:
-	PathItem(QGraphicsItem *parent = 0);
+	PathItem(const Path &path, Map *map, QGraphicsItem *parent = 0);
 
 	QPainterPath shape() const {return _shape;}
 	QRectF boundingRect() const {return _shape.boundingRect();}
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
-	const QPainterPath &path() const {return _path;}
-	void showMarker(bool show) {_marker->setVisible(show);}
-	void setScale(qreal scale);
-	void setUnits(enum Units units);
+	const Path &path() const {return _path;}
+
+	void setMap(Map *map);
+
 	void setColor(const QColor &color);
+	void setWidth(qreal width);
+	void setStyle(Qt::PenStyle style);
+
+	void showMarker(bool show) {_marker->setVisible(show);}
 
 public slots:
 	void moveMarker(qreal distance);
@@ -32,22 +38,24 @@ signals:
 	void selected(bool);
 
 protected:
-	void updateShape();
-
-	QVector<qreal> _distance;
-	QPainterPath _path;
-	QPainterPath _shape;
-	QPen _pen;
-
+	Path _path;
 	MarkerItem *_marker;
 
-	Units _units;
-
 private:
 	QPointF position(qreal distance) const;
+	void updatePainterPath(Map *map);
+	void updateShape();
 
 	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
 	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+
+	Map *_map;
+	qreal _md;
+
+	qreal _width;
+	QPen _pen;
+	QPainterPath _shape;
+	QPainterPath _painterPath;
 };
 
 #endif // PATHITEM_H

src/pathview.cpp

@@ -1,66 +1,25 @@
 #include <QGraphicsView>
 #include <QGraphicsScene>
 #include <QWheelEvent>
-#include "rd.h"
+#include <QApplication>
+#include "opengl.h"
+#include "misc.h"
 #include "poi.h"
 #include "data.h"
 #include "map.h"
+#include "emptymap.h"
 #include "trackitem.h"
 #include "routeitem.h"
 #include "waypointitem.h"
 #include "scaleitem.h"
+#include "keys.h"
 #include "pathview.h"
 
-
-#define ZOOM_MAX      18
-#define ZOOM_MIN      3
+#define MAX_ZOOM      1
+#define MIN_ZOOM      -3
 #define MARGIN        10.0
 #define SCALE_OFFSET  7
 
-static QPoint mercator2tile(const QPointF &m, int z)
-{
-	QPoint tile;
-
-	tile.setX((int)(floor((m.x() + 180.0) / 360.0 * pow(2.0, z))));
-	tile.setY((int)(floor((1.0 - (m.y() / 180.0)) / 2.0 * pow(2.0, z))));
-
-	return tile;
-}
-
-static QPointF tile2mercator(const QPoint &tile, int z)
-{
-	Coordinates m;
-
-	m.setLon(tile.x() / pow(2.0, z) * 360.0 - 180);
-	qreal n = M_PI - 2.0 * M_PI * tile.y() / pow(2.0, z);
-	m.setLat(rad2deg(atan(0.5 * (exp(n) - exp(-n)))));
-
-	return m.toMercator();
-}
-
-static int scale2zoom(qreal scale)
-{
-	int zoom = (int)log2(360.0/(scale * (qreal)Tile::size()));
-
-	if (zoom < ZOOM_MIN)
-		return ZOOM_MIN;
-	if (zoom > ZOOM_MAX)
-		return ZOOM_MAX;
-
-	return zoom;
-}
-
-qreal mapScale(int zoom)
-{
-	return ((360.0/(qreal)(1<<zoom))/(qreal)Tile::size());
-}
-
-static QRectF qrectf(const QPointF &p1, const QPointF &p2)
-{
-	return QRectF(QPointF(qMin(p1.x(), p2.x()), qMin(p1.y(), p2.y())),
-	  QPointF(qMax(p1.x(), p2.x()), qMax(p1.y(), p2.y())));
-}
-
 static void unite(QRectF &rect, const QPointF &p)
 {
 	if (p.x() < rect.left())
@@ -73,16 +32,12 @@ static void unite(QRectF &rect, const QPointF &p)
 		rect.setTop(p.y());
 }
 
-static QRectF scaled(const QRectF &rect, qreal factor)
-{
-	return QRectF(QPointF(rect.left() * factor, rect.top() * factor),
-	  QSizeF(rect.width() * factor, rect.height() * factor));
-}
-
-
-PathView::PathView(QWidget *parent)
+PathView::PathView(Map *map, POI *poi, QWidget *parent)
 	: QGraphicsView(parent)
 {
+	Q_ASSERT(map != 0);
+	Q_ASSERT(poi != 0);
+
 	_scene = new QGraphicsScene(this);
 	setScene(_scene);
 	setCacheMode(QGraphicsView::CacheBackground);
@@ -90,18 +45,21 @@ PathView::PathView(QWidget *parent)
 	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
 	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
-	setRenderHints(QPainter::Antialiasing);
+	setRenderHint(QPainter::Antialiasing, true);
 	setAcceptDrops(false);
 
 	_mapScale = new ScaleItem();
 	_mapScale->setZValue(2.0);
+	_mapScale->setFlag(QGraphicsItem::ItemIgnoresTransformations);
 
-	_zoom = ZOOM_MAX;
-	_map = 0;
-	_poi = 0;
+	_map = map;
+	_poi = poi;
+	connect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
+	connect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
 
 	_units = Metric;
 
+	_showMap = true;
 	_showTracks = true;
 	_showRoutes = true;
 	_showWaypoints = true;
@@ -110,8 +68,16 @@ PathView::PathView(QWidget *parent)
 	_showPOILabels = true;
 	_overlapPOIs = true;
 	_showRouteWaypoints = true;
+	_trackWidth = 3;
+	_routeWidth = 3;
+	_trackStyle = Qt::SolidLine;
+	_routeStyle = Qt::DashLine;
 
 	_plot = false;
+	_digitalZoom = 0;
+
+	_scene->setSceneRect(_map->bounds());
+	_res = _map->resolution(_scene->sceneRect().center());
 }
 
 PathView::~PathView()
@@ -123,21 +89,20 @@ PathView::~PathView()
 PathItem *PathView::addTrack(const Track &track)
 {
 	if (track.isNull()) {
-		_palette.color();
+		_palette.nextColor();
 		return 0;
 	}
 
-	TrackItem *ti = new TrackItem(track);
+	TrackItem *ti = new TrackItem(track, _map);
 	_tracks.append(ti);
 	_tr |= ti->path().boundingRect();
-	_zoom = scale2zoom(contentsScale());
-	ti->setScale(1.0/mapScale(_zoom));
-	ti->setColor(_palette.color());
+	ti->setColor(_palette.nextColor());
+	ti->setWidth(_trackWidth * pow(2, -_digitalZoom));
+	ti->setStyle(_trackStyle);
 	ti->setVisible(_showTracks);
 	_scene->addItem(ti);
 
-	if (_poi)
-		addPOI(_poi->points(ti));
+	addPOI(_poi->points(ti->path()));
 
 	return ti;
 }
@@ -145,63 +110,49 @@ PathItem *PathView::addTrack(const Track &track)
 PathItem *PathView::addRoute(const Route &route)
 {
 	if (route.isNull()) {
-		_palette.color();
+		_palette.nextColor();
 		return 0;
 	}
 
-	RouteItem *ri = new RouteItem(route);
+	RouteItem *ri = new RouteItem(route, _map);
 	_routes.append(ri);
 	_rr |= ri->path().boundingRect();
-	_zoom = scale2zoom(contentsScale());
-	ri->setScale(1.0/mapScale(_zoom));
-	ri->setColor(_palette.color());
+	ri->setColor(_palette.nextColor());
+	ri->setWidth(_routeWidth * pow(2, -_digitalZoom));
+	ri->setStyle(_routeStyle);
 	ri->setVisible(_showRoutes);
 	ri->showWaypoints(_showRouteWaypoints);
 	ri->showWaypointLabels(_showWaypointLabels);
 	_scene->addItem(ri);
 
-	if (_poi)
-		addPOI(_poi->points(ri));
+	addPOI(_poi->points(ri->path()));
 
 	return ri;
 }
 
 void PathView::addWaypoints(const QList<Waypoint> &waypoints)
 {
-	qreal scale = mapScale(_zoom);
-
 	for (int i = 0; i < waypoints.count(); i++) {
 		const Waypoint &w = waypoints.at(i);
 
-		WaypointItem *wi = new WaypointItem(w);
-		wi->setScale(1.0/scale);
+		WaypointItem *wi = new WaypointItem(w, _map);
+		_waypoints.append(wi);
+		Coordinates c = wi->waypoint().coordinates();
+		updateWaypointsBoundingRect(QPointF(c.lon(), c.lat()));
 		wi->setZValue(1);
 		wi->showLabel(_showWaypointLabels);
 		wi->setVisible(_showWaypoints);
+		wi->setFlag(QGraphicsItem::ItemIgnoresTransformations);
 		_scene->addItem(wi);
-
-		if (_wr.isNull()) {
-			if (_wp.isNull())
-				_wp = wi->coordinates();
-			else
-				_wr = qrectf(_wp, wi->coordinates());
-		} else
-			unite(_wr, wi->coordinates());
-
-		_waypoints.append(wi);
 	}
 
-	if (_poi)
-		addPOI(_poi->points(waypoints));
-
-	_zoom = scale2zoom(contentsScale());
+	addPOI(_poi->points(waypoints));
 }
 
 QList<PathItem *> PathView::loadData(const Data &data)
 {
 	QList<PathItem *> paths;
-	int zoom = _zoom;
-
+	qreal scale = _map->zoom();
 
 	for (int i = 0; i < data.tracks().count(); i++)
 		paths.append(addTrack(*(data.tracks().at(i))));
@@ -212,47 +163,54 @@ QList<PathItem *> PathView::loadData(const Data &data)
 	if (_tracks.empty() && _routes.empty() && _waypoints.empty())
 		return paths;
 
-	if ((_tracks.size() + _routes.size() > 1 && _zoom < zoom)
-	  || (_waypoints.size() && _zoom < zoom))
-		rescale(_zoom);
+	if (mapScale() != scale)
+		rescale();
 	else
 		updatePOIVisibility();
 
-	QRectF sr = contentsSceneRect();
-	_scene->setSceneRect(sr);
-	centerOn(sr.center());
+	QPointF center = contentCenter();
+	centerOn(center);
 
-	_mapScale->setZoom(_zoom, -(sr.center().ry() * mapScale(_zoom)));
+	_res = _map->resolution(center);
+	_mapScale->setResolution(_res);
 	if (_mapScale->scene() != _scene)
 		_scene->addItem(_mapScale);
 
 	return paths;
 }
 
-qreal PathView::contentsScale() const
+void PathView::updateWaypointsBoundingRect(const QPointF &wp)
 {
-	QRectF br = _tr | _rr | _wr;
-
-	if (br.isNull())
-		return mapScale(ZOOM_MAX);
-
-	QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
-	  br.height() / (viewport()->height() - MARGIN/2));
-
-	return qMax(sc.x(), sc.y());
+	if (_wr.isNull()) {
+		if (_wp.isNull())
+			_wp = wp;
+		else {
+			_wr = QRectF(_wp, wp).normalized();
+			_wp = QPointF();
+		}
+	} else
+		unite(_wr, wp);
 }
 
-QRectF PathView::contentsSceneRect() const
+qreal PathView::mapScale() const
 {
-	qreal scale = mapScale(_zoom);
-	QRectF br = scaled(_tr | _rr | _wr, 1.0/scale);
+	QRectF br = _tr | _rr | _wr;
+	if (!br.isNull() && !_wp.isNull())
+		unite(br, _wp);
+
+	return _map->zoomFit(viewport()->size() - QSize(MARGIN/2, MARGIN/2), br);
+}
+
+QPointF PathView::contentCenter() const
+{
+	QRectF br = _tr | _rr | _wr;
+	if (!br.isNull() && !_wp.isNull())
+		unite(br, _wp);
 
 	if (br.isNull())
-		return QRectF(QPointF(_wp.x() / scale - Tile::size()/2,
-		  _wp.y() /scale - Tile::size()/2), QSizeF(Tile::size(), Tile::size()));
+		return _map->ll2xy(_wp);
 	else
-		return br.adjusted(-Tile::size(), -Tile::size(), Tile::size(),
-		  Tile::size());
+		return _map->ll2xy(br.center());
 }
 
 void PathView::updatePOIVisibility()
@@ -276,37 +234,78 @@ void PathView::updatePOIVisibility()
 	}
 }
 
-void PathView::rescale(int zoom)
+void PathView::rescale()
 {
-	_zoom = zoom;
-	qreal scale = mapScale(zoom);
+	_scene->setSceneRect(_map->bounds());
+	resetCachedContent();
 
 	for (int i = 0; i < _tracks.size(); i++)
-		_tracks.at(i)->setScale(1.0/scale);
-
+		_tracks.at(i)->setMap(_map);
 	for (int i = 0; i < _routes.size(); i++)
-		_routes.at(i)->setScale(1.0/scale);
-
+		_routes.at(i)->setMap(_map);
 	for (int i = 0; i < _waypoints.size(); i++)
-		_waypoints.at(i)->setScale(1.0/scale);
+		_waypoints.at(i)->setMap(_map);
 
 	QHash<Waypoint, WaypointItem*>::const_iterator it;
 	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
-		it.value()->setScale(1.0/scale);
+		it.value()->setMap(_map);
 
 	updatePOIVisibility();
 }
 
+void PathView::setPalette(const Palette &palette)
+{
+	_palette = palette;
+	_palette.reset();
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setColor(_palette.nextColor());
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setColor(_palette.nextColor());
+}
+
+void PathView::setMap(Map *map)
+{
+	_map->unload();
+	disconnect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
+
+	_map = map;
+	_map->load();
+	connect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
+
+	resetDigitalZoom();
+
+	mapScale();
+	_scene->setSceneRect(_map->bounds());
+
+	for (int i = 0; i < _tracks.size(); i++)
+		_tracks.at(i)->setMap(map);
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->setMap(map);
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->setMap(map);
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->setMap(_map);
+	updatePOIVisibility();
+
+	QPointF center = contentCenter();
+	centerOn(center);
+
+	_res = _map->resolution(center);
+	_mapScale->setResolution(_res);
+
+	resetCachedContent();
+}
+
 void PathView::setPOI(POI *poi)
 {
-	if (_poi)
-		disconnect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
+	disconnect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
+	connect(poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
 
 	_poi = poi;
 
-	if (_poi)
-		connect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
-
 	updatePOI();
 }
 
@@ -320,13 +319,10 @@ void PathView::updatePOI()
 	}
 	_pois.clear();
 
-	if (!_poi)
-		return;
-
 	for (int i = 0; i < _tracks.size(); i++)
-		addPOI(_poi->points(_tracks.at(i)));
+		addPOI(_poi->points(_tracks.at(i)->path()));
 	for (int i = 0; i < _routes.size(); i++)
-		addPOI(_poi->points(_routes.at(i)));
+		addPOI(_poi->points(_routes.at(i)->path()));
 	addPOI(_poi->points(_waypoints));
 
 	updatePOIVisibility();
@@ -334,38 +330,23 @@ void PathView::updatePOI()
 
 void PathView::addPOI(const QVector<Waypoint> &waypoints)
 {
-	qreal scale = mapScale(_zoom);
-
 	for (int i = 0; i < waypoints.size(); i++) {
 		const Waypoint &w = waypoints.at(i);
 
 		if (_pois.contains(w))
 			continue;
 
-		WaypointItem *pi = new WaypointItem(w);
-		pi->setScale(1.0/scale);
+		WaypointItem *pi = new WaypointItem(w, _map);
 		pi->setZValue(1);
 		pi->showLabel(_showPOILabels);
 		pi->setVisible(_showPOI);
+		pi->setFlag(QGraphicsItem::ItemIgnoresTransformations);
 		_scene->addItem(pi);
 
 		_pois.insert(w, pi);
 	}
 }
 
-void PathView::setMap(Map *map)
-{
-	if (_map)
-		disconnect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
-
-	_map = map;
-
-	if (_map)
-		connect(_map, SIGNAL(loaded()), this, SLOT(redraw()));
-
-	resetCachedContent();
-}
-
 void PathView::setUnits(enum Units units)
 {
 	_units = units;
@@ -389,49 +370,71 @@ void PathView::redraw()
 	resetCachedContent();
 }
 
-void PathView::rescale()
+void PathView::resetDigitalZoom()
 {
-	int zoom = scale2zoom(contentsScale());
+	_digitalZoom = 0;
 
-	if (zoom != _zoom) {
-		rescale(zoom);
-		_mapScale->setZoom(zoom);
-	}
+	resetTransform();
+
+	setTrackWidth(_trackWidth);
+	setRouteWidth(_routeWidth);
 }
 
-void PathView::zoom(int z, const QPoint &pos)
+void PathView::digitalZoom(int zoom)
 {
-	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
-		return;
+	_digitalZoom += zoom;
+	scale(pow(2, zoom), pow(2, zoom));
 
-	QPoint offset = pos - viewport()->rect().center();
-	QPointF spos = mapToScene(pos);
+	setTrackWidth(_trackWidth);
+	setRouteWidth(_routeWidth);
 
-	qreal os = mapScale(_zoom);
-	_zoom = z;
+	_mapScale->setResolution(_res * pow(2, -_digitalZoom));
+}
 
-	rescale(_zoom);
+void PathView::zoom(int zoom, const QPoint &pos, const Coordinates &c)
+{
+	bool shift = QApplication::keyboardModifiers() & Qt::ShiftModifier;
 
-	QRectF sr = contentsSceneRect();
-	_scene->setSceneRect(sr);
+	if (_digitalZoom) {
+		if (((_digitalZoom > 0 && zoom > 0) && (!shift || _digitalZoom
+		  >= MAX_ZOOM)) || ((_digitalZoom < 0 && zoom < 0) && (!shift
+		  || _digitalZoom <= MIN_ZOOM)))
+			return;
 
-	if (sr.width() < viewport()->size().width()
-	  && sr.height() < viewport()->size().height())
-		centerOn(sr.center());
-	else
-		centerOn((spos * (os/mapScale(_zoom))) - offset);
+		digitalZoom(zoom);
+	} else {
+		qreal os, ns;
+		os = _map->zoom();
+		ns = (zoom > 0) ? _map->zoomIn() : _map->zoomOut();
 
-	_mapScale->setZoom(_zoom);
+		if (ns != os) {
+			QPoint offset = pos - viewport()->rect().center();
 
-	resetCachedContent();
+			rescale();
+
+			QPointF center = _map->ll2xy(c) - offset;
+			centerOn(center);
+
+			_res = _map->resolution(center);
+			_mapScale->setResolution(_res);
+		} else {
+			if (shift)
+				digitalZoom(zoom);
+		}
+	}
 }
 
 void PathView::wheelEvent(QWheelEvent *event)
 {
-	int z = (event->delta() > 0) ?
-		qMin(_zoom + 1, ZOOM_MAX) : qMax(_zoom - 1, ZOOM_MIN);
+	static int deg = 0;
 
-	zoom(z, event->pos());
+	deg += event->delta() / 8;
+	if (qAbs(deg) < 15)
+		return;
+	deg = 0;
+
+	Coordinates c = _map->xy2ll(mapToScene(event->pos()));
+	zoom((event->delta() > 0) ? 1 : -1, event->pos(), c);
 }
 
 void PathView::mouseDoubleClickEvent(QMouseEvent *event)
@@ -439,25 +442,30 @@ void PathView::mouseDoubleClickEvent(QMouseEvent *event)
 	if (event->button() != Qt::LeftButton && event->button() != Qt::RightButton)
 		return;
 
-	int z = (event->button() == Qt::LeftButton) ?
-		qMin(_zoom + 1, ZOOM_MAX) : qMax(_zoom - 1, ZOOM_MIN);
-
-	zoom(z, event->pos());
+	Coordinates c = _map->xy2ll(mapToScene(event->pos()));
+	zoom((event->button() == Qt::LeftButton) ? 1 : -1, event->pos(), c);
 }
 
 void PathView::keyPressEvent(QKeyEvent *event)
 {
-	int z = -1;
+	int z;
 
-	if (event->matches(QKeySequence::ZoomIn))
-		z = qMin(_zoom + 1, ZOOM_MAX);
-	if (event->matches(QKeySequence::ZoomOut))
-		z = qMax(_zoom - 1, ZOOM_MIN);
+	QPoint pos = QRect(QPoint(), viewport()->size()).center();
+	Coordinates c = _map->xy2ll(mapToScene(pos));
 
-	if (z >= 0)
-		zoom(z, QRect(QPoint(), size()).center());
-	else
-		QWidget::keyPressEvent(event);
+	if (event->matches(ZOOM_IN))
+		z = 1;
+	else if (event->matches(ZOOM_OUT))
+		z = -1;
+	else if (_digitalZoom && event->key() == Qt::Key_Escape) {
+		resetDigitalZoom();
+		return;
+	} else {
+		QGraphicsView::keyPressEvent(event);
+		return;
+	}
+
+	zoom(z, pos, c);
 }
 
 void PathView::plot(QPainter *painter, const QRectF &target)
@@ -469,7 +477,7 @@ void PathView::plot(QPainter *painter, const QRectF &target)
 	orig = viewport()->rect();
 
 	if (orig.height() * (target.width() / target.height()) - orig.width() < 0) {
-		ratio = target.height()/target.width();
+		ratio = target.height() / target.width();
 		diff = (orig.width() * ratio) - orig.height();
 		adj = orig.adjusted(0, -diff/2, 0, diff/2);
 	} else {
@@ -480,6 +488,7 @@ void PathView::plot(QPainter *painter, const QRectF &target)
 
 	setUpdatesEnabled(false);
 	_plot = true;
+	_map->setBlockingMode(true);
 
 	QPointF pos = _mapScale->pos();
 	_mapScale->setPos(mapToScene(QPoint(adj.bottomRight() + QPoint(
@@ -490,6 +499,7 @@ void PathView::plot(QPainter *painter, const QRectF &target)
 
 	_mapScale->setPos(pos);
 
+	_map->setBlockingMode(false);
 	_plot = false;
 	setUpdatesEnabled(true);
 }
@@ -506,11 +516,11 @@ void PathView::clear()
 	_scene->clear();
 	_palette.reset();
 
-	_zoom = ZOOM_MAX;
 	_tr = QRectF(); _rr = QRectF(); _wr = QRectF();
 	_wp = QPointF();
 
-	_scene->setSceneRect(QRectF());
+	_digitalZoom = 0;
+	resetTransform();
 }
 
 void PathView::showTracks(bool show)
@@ -556,6 +566,12 @@ void PathView::showRouteWaypoints(bool show)
 		_routes.at(i)->showWaypoints(show);
 }
 
+void PathView::showMap(bool show)
+{
+	_showMap = show;
+	resetCachedContent();
+}
+
 void PathView::showPOI(bool show)
 {
 	_showPOI = show;
@@ -585,61 +601,59 @@ void PathView::setPOIOverlap(bool overlap)
 	updatePOIVisibility();
 }
 
+void PathView::setTrackWidth(int width)
+{
+	_trackWidth = width;
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setWidth(width * pow(2, -_digitalZoom));
+}
+
+void PathView::setRouteWidth(int width)
+{
+	_routeWidth = width;
+
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setWidth(width * pow(2, -_digitalZoom));
+}
+
+void PathView::setTrackStyle(Qt::PenStyle style)
+{
+	_trackStyle = style;
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setStyle(style);
+}
+
+void PathView::setRouteStyle(Qt::PenStyle style)
+{
+	_routeStyle = style;
+
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setStyle(style);
+}
+
 void PathView::drawBackground(QPainter *painter, const QRectF &rect)
 {
-	if ((_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
-	  || !_map) {
+	if (_showMap)
+		_map->draw(painter, rect);
+	else
 		painter->fillRect(rect, Qt::white);
-		return;
-	}
-
-	qreal scale = mapScale(_zoom);
-	QRectF rr(rect.topLeft() * scale, rect.size());
-	QPoint tile = mercator2tile(QPointF(rr.topLeft().x(), -rr.topLeft().y()),
-	  _zoom);
-	QPointF tm = tile2mercator(tile, _zoom);
-	QPoint tl = mapToScene(mapFromScene(QPointF(tm.x() / scale,
-	  -tm.y() / scale))).toPoint();
-
-	QList<Tile> tiles;
-	for (int i = 0; i <= rr.size().width() / Tile::size() + 1; i++) {
-		for (int j = 0; j <= rr.size().height() / Tile::size() + 1; j++) {
-			tiles.append(Tile(QPoint(tile.x() + i, tile.y() + j), _zoom));
-		}
-	}
-
-	_map->loadTiles(tiles, _plot);
-
-	for (int i = 0; i < tiles.count(); i++) {
-		Tile &t = tiles[i];
-		QPoint tp(tl.x() + (t.xy().x() - tile.x()) * Tile::size(),
-		  tl.y() + (t.xy().y() - tile.y()) * Tile::size());
-		painter->drawPixmap(tp, t.pixmap());
-	}
 }
 
 void PathView::resizeEvent(QResizeEvent *event)
 {
-	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
-		return;
+	qreal scale = _map->zoom();
+	if (mapScale() != scale)
+		rescale();
 
-	rescale();
+	QPointF center = contentCenter();
+	centerOn(center);
 
-	QRectF sr = contentsSceneRect();
+	_res = _map->resolution(center);
+	_mapScale->setResolution(_res);
 
-	if (sr.width() < event->size().width()) {
-		qreal diff = event->size().width() - sr.width();
-		sr.adjust(-diff/2, 0, diff/2, 0);
-	}
-	if (sr.height() < event->size().height()) {
-		qreal diff = event->size().height() - sr.height();
-		sr.adjust(0, -diff/2, 0, diff/2);
-	}
-
-	_scene->setSceneRect(sr);
-	centerOn(sr.center());
-
-	resetCachedContent();
+	QGraphicsView::resizeEvent(event);
 }
 
 void PathView::paintEvent(QPaintEvent *event)
@@ -652,3 +666,24 @@ void PathView::paintEvent(QPaintEvent *event)
 
 	QGraphicsView::paintEvent(event);
 }
+
+void PathView::scrollContentsBy(int dx, int dy)
+{
+	QGraphicsView::scrollContentsBy(dx, dy);
+
+	QPointF center = mapToScene(viewport()->rect().center());
+	qreal res = _map->resolution(center);
+
+	if (qMax(res, _res) / qMin(res, _res) > 1.1) {
+		_mapScale->setResolution(res);
+		_res = res;
+	}
+}
+
+void PathView::useOpenGL(bool use)
+{
+	if (use)
+		setViewport(new OPENGL_WIDGET);
+	else
+		setViewport(new QWidget);
+}

src/pathview.h

@@ -25,11 +25,12 @@ class PathView : public QGraphicsView
 	Q_OBJECT
 
 public:
-	PathView(QWidget *parent = 0);
+	PathView(Map *map, POI *poi, QWidget *parent = 0);
 	~PathView();
 
 	QList<PathItem*> loadData(const Data &data);
 
+	void setPalette(const Palette &palette);
 	void setPOI(POI *poi);
 	void setMap(Map *map);
 	void setUnits(enum Units units);
@@ -42,9 +43,12 @@ public:
 
 	void clear();
 
+	void useOpenGL(bool use);
+
 public slots:
 	void redraw();
 
+	void showMap(bool show);
 	void showPOI(bool show);
 	void setPOIOverlap(bool overlap);
 	void showWaypointLabels(bool show);
@@ -53,6 +57,10 @@ public slots:
 	void showRoutes(bool show);
 	void showWaypoints(bool show);
 	void showRouteWaypoints(bool show);
+	void setTrackWidth(int width);
+	void setRouteWidth(int width);
+	void setTrackStyle(Qt::PenStyle style);
+	void setRouteStyle(Qt::PenStyle style);
 
 private slots:
 	void updatePOI();
@@ -65,12 +73,14 @@ private:
 	void loadPOI();
 	void clearPOI();
 
-	qreal contentsScale() const;
-	QRectF contentsSceneRect() const;
-	void rescale(int zoom);
+	qreal mapScale() const;
+	QPointF contentCenter() const;
 	void rescale();
-	void zoom(int z, const QPoint &pos);
+	void zoom(int zoom, const QPoint &pos, const Coordinates &c);
+	void digitalZoom(int zoom);
+	void resetDigitalZoom();
 	void updatePOIVisibility();
+	void updateWaypointsBoundingRect(const QPointF &wp);
 
 	void mouseDoubleClickEvent(QMouseEvent *event);
 	void wheelEvent(QWheelEvent *event);
@@ -78,6 +88,7 @@ private:
 	void drawBackground(QPainter *painter, const QRectF &rect);
 	void resizeEvent(QResizeEvent *event);
 	void paintEvent(QPaintEvent *event);
+	void scrollContentsBy(int dx, int dy);
 
 	QGraphicsScene *_scene;
 	ScaleItem *_mapScale;
@@ -86,15 +97,16 @@ private:
 	QList<WaypointItem*> _waypoints;
 	QHash<Waypoint, WaypointItem*> _pois;
 
-	int _zoom;
 	QRectF _tr, _rr, _wr;
 	QPointF _wp;
+	qreal _res;
 
 	Map *_map;
 	POI *_poi;
 	Palette _palette;
 	Units _units;
 
+	bool _showMap;
 	bool _showTracks;
 	bool _showRoutes;
 	bool _showWaypoints;
@@ -103,7 +115,12 @@ private:
 	bool _showPOILabels;
 	bool _overlapPOIs;
 	bool _showRouteWaypoints;
+	int _trackWidth;
+	int _routeWidth;
+	Qt::PenStyle _trackStyle;
+	Qt::PenStyle _routeStyle;
 
+	int _digitalZoom;
 	bool _plot;
 };
 

src/poi.cpp

@@ -10,7 +10,7 @@
 POI::POI(QObject *parent) : QObject(parent)
 {
 	_errorLine = 0;
-	_radius = 0.01;
+	_radius = 1000;
 }
 
 bool POI::loadFile(const QString &fileName)
@@ -58,19 +58,20 @@ static bool cb(size_t data, void* context)
 	return true;
 }
 
-QVector<Waypoint> POI::points(const PathItem *path) const
+QVector<Waypoint> POI::points(const Path &path) const
 {
 	QVector<Waypoint> ret;
 	QSet<int> set;
 	qreal min[2], max[2];
-	const QPainterPath &pp = path->path();
 
-	for (int i = 0; i < pp.elementCount(); i++) {
-		Coordinates p = Coordinates::fromMercator(pp.elementAt(i));
-		min[0] = p.lon() - _radius;
-		min[1] = -p.lat() - _radius;
-		max[0] = p.lon() + _radius;
-		max[1] = -p.lat() + _radius;
+	for (int i = 0; i < path.count(); i++) {
+		const Coordinates &c = path.at(i).coordinates();
+		QPair<Coordinates, Coordinates> br = c.boundingRect(_radius);
+		min[0] = br.first.lon();
+		min[1] = br.first.lat();
+		max[0] = br.second.lon();
+		max[1] = br.second.lat();
+
 		_tree.Search(min, max, cb, &set);
 	}
 
@@ -92,10 +93,13 @@ QVector<Waypoint> POI::points(const QList<WaypointItem*> &list)
 
 	for (int i = 0; i < list.count(); i++) {
 		const Coordinates &p = list.at(i)->waypoint().coordinates();
-		min[0] = p.lon() - _radius;
-		min[1] = p.lat() - _radius;
-		max[0] = p.lon() + _radius;
-		max[1] = p.lat() + _radius;
+
+		QPair<Coordinates, Coordinates> br = p.boundingRect(_radius);
+		min[0] = br.first.lon();
+		min[1] = br.first.lat();
+		max[0] = br.second.lon();
+		max[1] = br.second.lat();
+
 		_tree.Search(min, max, cb, &set);
 	}
 
@@ -116,10 +120,13 @@ QVector<Waypoint> POI::points(const QList<Waypoint> &list) const
 
 	for (int i = 0; i < list.count(); i++) {
 		const Coordinates &p = list.at(i).coordinates();
-		min[0] = p.lon() - _radius;
-		min[1] = p.lat() - _radius;
-		max[0] = p.lon() + _radius;
-		max[1] = p.lat() + _radius;
+
+		QPair<Coordinates, Coordinates> br = p.boundingRect(_radius);
+		min[0] = br.first.lon();
+		min[1] = br.first.lat();
+		max[0] = br.second.lon();
+		max[1] = br.second.lat();
+
 		_tree.Search(min, max, cb, &set);
 	}
 
@@ -168,7 +175,7 @@ void POI::clear()
 	emit pointsChanged();
 }
 
-void POI::setRadius(qreal radius)
+void POI::setRadius(unsigned radius)
 {
 	_radius = radius;
 

src/poi.h

@@ -7,8 +7,8 @@
 #include <QStringList>
 #include "waypoint.h"
 #include "rtree.h"
+#include "path.h"
 
-class PathItem;
 class WaypointItem;
 
 class POI : public QObject
@@ -22,10 +22,10 @@ public:
 	const QString &errorString() const {return _errorString;}
 	int errorLine() const {return _errorLine;}
 
-	qreal radius() const {return _radius;}
-	void setRadius(qreal radius);
+	unsigned radius() const {return _radius;}
+	void setRadius(unsigned radius);
 
-	QVector<Waypoint> points(const PathItem *path) const;
+	QVector<Waypoint> points(const Path &path) const;
 	QVector<Waypoint> points(const QList<WaypointItem*> &list) const;
 	QVector<Waypoint> points(const QList<Waypoint> &list) const;
 
@@ -49,7 +49,7 @@ private:
 	QStringList _files;
 	QList<FileIndex> _indexes;
 
-	qreal _radius;
+	unsigned _radius;
 
 	QString _errorString;
 	int _errorLine;

src/powergraph.h

@@ -13,9 +13,7 @@ public:
 	QString label() const {return tr("Power");}
 	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/projection.h

@@ -0,0 +1,15 @@
+#ifndef PROJECTION_H
+#define PROJECTION_H
+
+#include <QPointF>
+#include "coordinates.h"
+
+class Projection {
+public:
+	virtual ~Projection() {}
+
+	virtual QPointF ll2xy(const Coordinates &c) const = 0;
+	virtual Coordinates xy2ll(const QPointF &p) const = 0;
+};
+
+#endif // PROJECTION_H

src/route.cpp

@@ -11,6 +11,16 @@ Route::Route(const RouteData &data) : _data(data)
 	}
 }
 
+Path Route::path() const
+{
+	Path ret;
+
+	for (int i = 0; i < _data.size(); i++)
+		ret.append(PathPoint(_data.at(i).coordinates(), _distance.at(i)));
+
+	return ret;
+}
+
 Graph Route::elevation() const
 {
 	Graph graph;

src/route.h

@@ -11,13 +11,17 @@ class Route
 public:
 	Route(const RouteData &data);
 
-	const RouteData &routeData() const {return _data;}
-	const QVector<qreal> &distanceData() const {return _distance;}
+	Path path() const;
+
+	const QVector<Waypoint> &waypoints() const {return _data;}
 
 	Graph elevation() const;
 
 	qreal distance() const;
 
+	const QString &name() const {return _data.name();}
+	const QString &description() const {return _data.description();}
+
 	bool isNull() const {return (_data.count() < 2);}
 
 private:

src/routeitem.cpp

@@ -1,75 +1,55 @@
-#include <QApplication>
 #include <QPainter>
 #include "format.h"
 #include "waypoint.h"
 #include "waypointitem.h"
 #include "tooltip.h"
+#include "map.h"
 #include "routeitem.h"
 
 
-QString RouteItem::toolTip()
+QString RouteItem::toolTip(Units units)
 {
 	ToolTip tt;
 
 	if (!_name.isEmpty())
-		tt.insert(qApp->translate("RouteItem", "Name"), _name);
+		tt.insert(tr("Name"), _name);
 	if (!_desc.isEmpty())
-		tt.insert(qApp->translate("RouteItem", "Description"), _desc);
-	tt.insert(qApp->translate("RouteItem", "Distance"),
-	  Format::distance(_distance.last(), _units));
+		tt.insert(tr("Description"), _desc);
+	tt.insert(tr("Distance"), Format::distance(_path.last().distance(), units));
 
 	return tt.toString();
 }
 
-RouteItem::RouteItem(const Route &route, QGraphicsItem *parent)
-  : PathItem(parent)
+RouteItem::RouteItem(const Route &route, Map *map, QGraphicsItem *parent)
+  : PathItem(route.path(), map, parent)
 {
-	const RouteData &r = route.routeData();
-	const QVector<qreal> &d = route.distanceData();
-	QPointF p;
+	const QVector<Waypoint> &waypoints = route.waypoints();
 
+	for (int i = 0; i < waypoints.size(); i++)
+		new WaypointItem(waypoints.at(i), map, this);
 
-	Q_ASSERT(r.count() >= 2);
-	Q_ASSERT(r.size() == d.size());
+	_name = route.name();
+	_desc = route.description();
 
-	_name = r.name();
-	_desc = r.description();
-
-	new WaypointItem(r.first(), this);
-	p = r.first().coordinates().toMercator();
-	_path.moveTo(QPointF(p.x(), -p.y()));
-	_distance.append(d.first());
-	for (int i = 1; i < r.size(); i++) {
-		if (r.at(i).coordinates() == r.at(i-1).coordinates())
-			continue;
-		p = r.at(i).coordinates().toMercator();
-		_path.lineTo(QPointF(p.x(), -p.y()));
-		_distance.append(d.at(i));
-		new WaypointItem(r.at(i), this);
-	}
-
-	updateShape();
-
-	_marker->setPos(_path.elementAt(0));
-
-	_pen.setStyle(Qt::DotLine);
-
-	setToolTip(toolTip());
+	setToolTip(toolTip(Metric));
 }
 
-void RouteItem::setScale(qreal scale)
+void RouteItem::setMap(Map *map)
 {
 	QList<QGraphicsItem *> childs =	childItems();
-	for (int i = 0; i < childs.count(); i++)
-		childs.at(i)->setScale(1.0/scale);
+	for (int i = 0; i < childs.count(); i++) {
+		if (childs.at(i) != _marker) {
+			WaypointItem *wi = static_cast<WaypointItem*>(childs.at(i));
+			wi->setMap(map);
+		}
+	}
 
-	PathItem::setScale(scale);
+	PathItem::setMap(map);
 }
 
 void RouteItem::setUnits(enum Units units)
 {
-	PathItem::setUnits(units);
-	setToolTip(toolTip());
+	setToolTip(toolTip(units));
 }
 
 void RouteItem::showWaypoints(bool show)

src/routeitem.h

@@ -3,23 +3,26 @@
 
 #include "pathitem.h"
 #include "route.h"
+#include "units.h"
 
+class Map;
 
 class RouteItem : public PathItem
 {
 	Q_OBJECT
 
 public:
-	RouteItem(const Route &route, QGraphicsItem *parent = 0);
+	RouteItem(const Route &route, Map *map, QGraphicsItem *parent = 0);
 
-	void setUnits(enum Units units);
-	void setScale(qreal scale);
+	//void setScale(qreal scale);
+	void setMap(Map *map);
 
+	void setUnits(Units units);
 	void showWaypoints(bool show);
 	void showWaypointLabels(bool show);
 
 private:
-	QString toolTip();
+	QString toolTip(Units units);
 
 	QString _name;
 	QString _desc;

src/scaleitem.cpp

@@ -1,8 +1,5 @@
 #include <QPainter>
 #include "config.h"
-#include "rd.h"
-#include "wgs84.h"
-#include "tile.h"
 #include "misc.h"
 #include "scaleitem.h"
 
@@ -13,17 +10,11 @@
 #define SEGMENTS       3
 #define PADDING        4
 
-static qreal zoom2resolution(int zoom, qreal y)
-{
-	return (WGS84_RADIUS * 2 * M_PI / Tile::size()
-	  * cos(2 * atan(exp(deg2rad(y))) - M_PI/2)) / pow(2.0, zoom);
-}
 
 ScaleItem::ScaleItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
 	_units = Metric;
-	_zoom = 0;
-	_lat = 0;
+	_res = 1.0;
 
 #ifndef Q_OS_MAC
 	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
@@ -96,45 +87,33 @@ QString ScaleItem::units() const
 
 void ScaleItem::computeScale()
 {
-	qreal res = zoom2resolution(_zoom, _lat);
-
 	if (_units == Imperial) {
-		_length = niceNum((res * M2FT * SCALE_WIDTH) / SEGMENTS, 1);
+		_length = niceNum((_res * M2FT * SCALE_WIDTH) / SEGMENTS, 1);
 		if (_length >= MIINFT) {
-			_length = niceNum((res * M2FT * FT2MI * SCALE_WIDTH) / SEGMENTS, 1);
-			_width = (_length / (res * M2FT * FT2MI));
+			_length = niceNum((_res * M2FT * FT2MI * SCALE_WIDTH) / SEGMENTS, 1);
+			_width = (_length / (_res * M2FT * FT2MI));
 			_scale = true;
 		} else {
-			_width = (_length / (res * M2FT));
+			_width = (_length / (_res * M2FT));
 			_scale = false;
 		}
 	} else {
-		_length = niceNum((res * SCALE_WIDTH) / SEGMENTS, 1);
+		_length = niceNum((_res * SCALE_WIDTH) / SEGMENTS, 1);
 		if (_length >= KMINM) {
 			_length *= M2KM;
-			_width = (_length / (res * M2KM));
+			_width = (_length / (_res * M2KM));
 			_scale = true;
 		} else {
-			_width = (_length / res);
+			_width = (_length / _res);
 			_scale = false;
 		}
 	}
 }
 
-void ScaleItem::setZoom(int z, qreal lat)
+void ScaleItem::setResolution(qreal res)
 {
 	prepareGeometryChange();
-	_zoom = z;
-	_lat = lat;
-	computeScale();
-	updateBoundingRect();
-	update();
-}
-
-void ScaleItem::setZoom(int z)
-{
-	prepareGeometryChange();
-	_zoom = z;
+	_res = res;
 	computeScale();
 	updateBoundingRect();
 	update();

src/scaleitem.h

@@ -13,8 +13,7 @@ public:
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
-	void setZoom(int z);
-	void setZoom(int z, qreal lat);
+	void setResolution(qreal res);
 	void setUnits(enum Units units);
 
 private:
@@ -22,8 +21,7 @@ private:
 	void computeScale();
 	QString units() const;
 
-	int _zoom;
-	qreal _lat;
+	qreal _res;
 	qreal _width;
 	qreal _length;
 	Units _units;

src/settings.h

@@ -1,35 +1,112 @@
 #ifndef SETTINGS_H
 #define SETTINGS_H
 
+#define IMPERIAL_UNITS() \
+	(QLocale::system().measurementSystem() == QLocale::ImperialSystem)
+
 #define WINDOW_SETTINGS_GROUP             "Window"
 #define WINDOW_SIZE_SETTING               "size"
+#define WINDOW_SIZE_DEFAULT               QSize(600, 800)
 #define WINDOW_POS_SETTING                "pos"
+#define WINDOW_POS_DEFAULT                QPoint(10, 10)
 
 #define SETTINGS_SETTINGS_GROUP           "Settings"
+#define TIME_TYPE_SETTING                 "timeType"
+#define TIME_TYPE_DEFAULT                 Total
 #define UNITS_SETTING                     "units"
+#define UNITS_DEFAULT                     (IMPERIAL_UNITS() ? Imperial : Metric)
 #define SHOW_TOOLBARS_SETTING             "toolbar"
+#define SHOW_TOOLBARS_DEFAULT             true
 
 #define GRAPH_SETTINGS_GROUP              "Graph"
 #define SHOW_GRAPHS_SETTING               "show"
+#define SHOW_GRAPHS_DEFAULT               true
 #define GRAPH_TYPE_SETTING                "type"
+#define GRAPH_TYPE_DEFAULT                Distance
 #define SHOW_GRAPH_GRIDS_SETTING          "grid"
+#define SHOW_GRAPH_GRIDS_DEFAULT          true
 
 #define MAP_SETTINGS_GROUP                "Map"
 #define CURRENT_MAP_SETTING               "map"
 #define SHOW_MAP_SETTING                  "show"
+#define SHOW_MAP_DEFAULT                  true
 
 #define POI_SETTINGS_GROUP                "POI"
 #define OVERLAP_POI_SETTING               "overlap"
+#define OVERLAP_POI_DEFAULT               false
 #define LABELS_POI_SETTING                "labels"
+#define LABELS_POI_DEFAULT                true
 #define SHOW_POI_SETTING                  "show"
+#define SHOW_POI_DEFAULT                  false
 #define DISABLED_POI_FILE_SETTINGS_PREFIX "disabled"
 #define DISABLED_POI_FILE_SETTING         "file"
 
 #define DATA_SETTINGS_GROUP               "Data"
 #define SHOW_TRACKS_SETTING               "tracks"
+#define SHOW_TRACKS_DEFAULT               true
 #define SHOW_ROUTES_SETTING               "routes"
+#define SHOW_ROUTES_DEFAULT               true
 #define SHOW_WAYPOINTS_SETTING            "waypoints"
+#define SHOW_WAYPOINTS_DEFAULT            true
 #define SHOW_ROUTE_WAYPOINTS_SETTING      "routeWaypoints"
+#define SHOW_ROUTE_WAYPOINTS_DEFAULT      true
 #define SHOW_WAYPOINT_LABELS_SETTING      "waypointLabels"
+#define SHOW_WAYPOINT_LABELS_DEFAULT      true
+
+#define EXPORT_SETTINGS_GROUP             "Export"
+#define PAPER_ORIENTATION_SETTING         "orientation"
+#define PAPER_ORIENTATION_DEFAULT         QPrinter::Portrait
+#define PAPER_SIZE_SETTING                "size"
+#define PAPER_SIZE_DEFAULT                (IMPERIAL_UNITS() ? QPrinter::Letter \
+                                            : QPrinter::A4)
+#define MARGIN_LEFT_SETTING               "marginLeft"
+#define MARGIN_LEFT_DEFAULT               5 /* mm */
+#define MARGIN_TOP_SETTING                "marginTop"
+#define MARGIN_TOP_DEFAULT                5 /* mm */
+#define MARGIN_RIGHT_SETTING              "marginRight"
+#define MARGIN_RIGHT_DEFAULT              5 /* mm */
+#define MARGIN_BOTTOM_SETTING             "marginBottom"
+#define MARGIN_BOTTOM_DEFAULT             5 /* mm */
+#define EXPORT_FILENAME_SETTING           "fileName"
+#define EXPORT_FILENAME_DEFAULT           QString("%1/export.pdf"). \
+                                            arg(QDir::currentPath())
+
+#define OPTIONS_SETTINGS_GROUP            "Options"
+#define PALETTE_COLOR_SETTING             "paletteColor"
+#define PALETTE_COLOR_DEFAULT             QColor(Qt::blue)
+#define PALETTE_SHIFT_SETTING             "paletteShift"
+#define PALETTE_SHIFT_DEFAULT             0.62
+#define TRACK_WIDTH_SETTING               "trackWidth"
+#define TRACK_WIDTH_DEFAULT               3
+#define ROUTE_WIDTH_SETTING               "routeWidth"
+#define ROUTE_WIDTH_DEFAULT               3
+#define TRACK_STYLE_SETTING               "trackStyle"
+#define TRACK_STYLE_DEFAULT               Qt::SolidLine
+#define ROUTE_STYLE_SETTING               "routeStyle"
+#define ROUTE_STYLE_DEFAULT               Qt::DotLine
+#define GRAPH_WIDTH_SETTING               "graphWidth"
+#define GRAPH_WIDTH_DEFAULT               1
+#define PATH_AA_SETTING                   "pathAntiAliasing"
+#define PATH_AA_DEFAULT                   true
+#define GRAPH_AA_SETTING                  "graphAntiAliasing"
+#define GRAPH_AA_DEFAULT                  false
+#define POI_RADIUS_SETTING                "poiRadius"
+#define POI_RADIUS_DEFAULT                (IMPERIAL_UNITS() ? MIINM : KMINM)
+#define USE_OPENGL_SETTING                "useOpenGL"
+#define USE_OPENGL_DEFAULT                false
+#define PRINT_NAME_SETTING                "printName"
+#define PRINT_NAME_DEFAULT                true
+#define PRINT_DATE_SETTING                "printDate"
+#define PRINT_DATE_DEFAULT                true
+#define PRINT_DISTANCE_SETTING            "printDistance"
+#define PRINT_DISTANCE_DEFAULT            true
+#define PRINT_TIME_SETTING                "printTime"
+#define PRINT_TIME_DEFAULT                true
+#define PRINT_MOVING_TIME_SETTING         "printMovingTime"
+#define PRINT_MOVING_TIME_DEFAULT         false
+#define PRINT_ITEM_COUNT_SETTING          "printItemCount"
+#define PRINT_ITEM_COUNT_DEFAULT          true
+#define SEPARATE_GRAPH_PAGE_SETTING       "separateGraphPage"
+#define SEPARATE_GRAPH_PAGE_DEFAULT       false
 
 #endif // SETTINGS_H

src/sliderinfoitem.cpp

@@ -32,9 +32,11 @@ void SliderInfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem
 	font.setPixelSize(FONT_SIZE);
 	font.setFamily(FONT_FAMILY);
 	QFontMetrics fm(font);
-	painter->setFont(font);
 
+	painter->setFont(font);
+	painter->setRenderHint(QPainter::Antialiasing, false);
 	painter->setPen(Qt::red);
+
 	if (_side == Right)
 		painter->drawText(SIZE, fm.height() - fm.descent(), _text);
 	else

src/speedgraph.cpp

@@ -6,6 +6,7 @@
 SpeedGraph::SpeedGraph(QWidget *parent) : GraphTab(parent)
 {
 	_units = Metric;
+	_timeType = Total;
 	_showTracks = true;
 
 	setYUnits();
@@ -36,6 +37,8 @@ void SpeedGraph::loadData(const Data &data, const QList<PathItem *> &paths)
 
 		_avg.append(QPointF(data.tracks().at(i)->distance(),
 		  data.tracks().at(i)->distance() / data.tracks().at(i)->time()));
+		_avgM.append(QPointF(data.tracks().at(i)->distance(),
+		  data.tracks().at(i)->distance() / data.tracks().at(i)->movingTime()));
 
 		GraphView::loadGraph(graph, paths.at(i));
 	}
@@ -52,8 +55,9 @@ qreal SpeedGraph::avg() const
 {
 	qreal sum = 0, w = 0;
 	QList<QPointF>::const_iterator it;
+	const QList<QPointF> &list = (_timeType == Moving) ? _avgM : _avg;
 
-	for (it = _avg.begin(); it != _avg.end(); it++) {
+	for (it = list.begin(); it != list.end(); it++) {
 		sum += it->y() * it->x();
 		w += it->x();
 	}
@@ -64,6 +68,7 @@ qreal SpeedGraph::avg() const
 void SpeedGraph::clear()
 {
 	_avg.clear();
+	_avgM.clear();
 
 	GraphView::clear();
 }
@@ -90,6 +95,14 @@ void SpeedGraph::setUnits(enum Units units)
 	redraw();
 }
 
+void SpeedGraph::setTimeType(enum TimeType type)
+{
+	_timeType = type;
+
+	setInfo();
+	redraw();
+}
+
 void SpeedGraph::showTracks(bool show)
 {
 	_showTracks = show;

src/speedgraph.h

@@ -15,8 +15,8 @@ public:
 	void loadData(const Data &data, const QList<PathItem *> &paths);
 	void clear();
 	void setUnits(enum Units units);
+	void setTimeType(enum TimeType type);
 	void showTracks(bool show);
-	void showRoutes(bool show) {Q_UNUSED(show);}
 
 private:
 	qreal avg() const;
@@ -25,8 +25,10 @@ private:
 	void setInfo();
 
 	QList<QPointF> _avg;
+	QList<QPointF> _avgM;
 
 	enum Units _units;
+	enum TimeType _timeType;
 	bool _showTracks;
 };
 

src/stylecombobox.cpp

@@ -0,0 +1,44 @@
+#include <QPen>
+#include <QPainter>
+#include <QResizeEvent>
+#include "stylecombobox.h"
+
+
+#define MIN_LINE_LENGTH  60
+#define LINE_WIDTH_RATIO 7
+
+#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*a))
+
+StyleComboBox::StyleComboBox(QWidget *parent) : QComboBox(parent)
+{
+	Qt::PenStyle styles[] = {Qt::SolidLine, Qt::DashLine, Qt::DotLine,
+	  Qt::DashDotLine, Qt::DashDotDotLine};
+
+	QSize is = iconSize();
+	setIconSize(QSize(MIN_LINE_LENGTH, is.height()));
+	is = iconSize();
+
+	for (size_t i = 0; i < ARRAY_SIZE(styles); i++) {
+		QPixmap pm(is);
+		pm.fill(Qt::transparent);
+
+		QBrush brush(Qt::black);
+		QPen pen(brush, is.height() / LINE_WIDTH_RATIO, styles[i]);
+
+		QPainter painter(&pm);
+		painter.setPen(pen);
+		painter.drawLine(0, is.height() / 2, is.width(), is.height() / 2);
+
+		addItem(QIcon(pm), QString(), QVariant((int)styles[i]));
+	}
+}
+
+void StyleComboBox::setValue(Qt::PenStyle value)
+{
+	for (int i = 0; i < count(); i++) {
+		if ((Qt::PenStyle) itemData(i).toInt() == value) {
+			setCurrentIndex(i);
+			return;
+		}
+	}
+}

src/stylecombobox.h

@@ -0,0 +1,16 @@
+#ifndef STYLECOMBOBOX_H
+#define STYLECOMBOBOX_H
+
+#include <QComboBox>
+
+class StyleComboBox : public QComboBox
+{
+	Q_OBJECT
+
+public:
+	StyleComboBox(QWidget *parent = 0);
+
+	void setValue(Qt::PenStyle value);
+};
+
+#endif // STYLECOMBOBOX_H

src/tar.cpp

@@ -0,0 +1,80 @@
+#include <cctype>
+#include <QFile>
+#include "tar.h"
+
+
+#define BLOCKSIZE 512
+
+#define BLOCKCOUNT(size) \
+	((size)/BLOCKSIZE + ((size) % BLOCKSIZE > 0 ? 1 : 0))
+
+struct Header
+{
+	char name[100];               /*   0 */
+	char mode[8];                 /* 100 */
+	char uid[8];                  /* 108 */
+	char gid[8];                  /* 116 */
+	char size[12];                /* 124 */
+	char mtime[12];               /* 136 */
+	char chksum[8];               /* 148 */
+	char typeflag;                /* 156 */
+	char linkname[100];           /* 157 */
+	char magic[6];                /* 257 */
+	char version[2];              /* 263 */
+	char uname[32];               /* 265 */
+	char gname[32];               /* 297 */
+	char devmajor[8];             /* 329 */
+	char devminor[8];             /* 337 */
+	char prefix[155];             /* 345 */
+	                              /* 500 */
+};
+
+static quint64 number(const char* data, size_t size)
+{
+	const char *sp;
+	quint64 val = 0;
+
+	for (sp = data; sp < data + size; sp++)
+		if (isdigit(*sp))
+			break;
+	for (; sp < data + size && isdigit(*sp); sp++)
+		val = val * 8 + *sp - '0';
+
+	return val;
+}
+
+bool Tar::load(const QString &path)
+{
+	char buffer[BLOCKSIZE];
+	struct Header *hdr = (struct Header*)&buffer;
+	quint64 size;
+	qint64 ret;
+
+	_file.setFileName(path);
+	if (!_file.open(QIODevice::ReadOnly))
+		return false;
+
+	while ((ret = _file.read(buffer, BLOCKSIZE)) > 0) {
+		if (ret < BLOCKSIZE)
+			return false;
+		size = number(hdr->size, sizeof(hdr->size));
+		if (size)
+			_index.insert(hdr->name, Info(size, _file.pos()));
+		if (!_file.seek(_file.pos() + BLOCKCOUNT(size) * BLOCKSIZE))
+			return false;
+	}
+
+	return true;
+}
+
+QByteArray Tar::file(const QString &name)
+{
+	QMap<QString, Tar::Info>::const_iterator it = _index.find(name);
+	if (it == _index.end())
+		return QByteArray();
+
+	if (_file.seek(it.value().offset()))
+		return _file.read(it.value().size());
+	else
+		return QByteArray();
+}

src/tar.h

@@ -0,0 +1,36 @@
+#ifndef TAR_H
+#define TAR_H
+
+#include <QStringList>
+#include <QMap>
+#include <QFile>
+
+class Tar
+{
+public:
+	bool load(const QString &path);
+
+	QStringList files() const {return _index.keys();}
+	QByteArray file(const QString &name);
+
+	QString fileName() const {return _file.fileName();}
+	bool isOpen() const {return _file.isOpen();}
+
+private:
+	class Info
+	{
+	public:
+		Info(quint64 size, quint64 offset) : _size(size),  _offset(offset) {}
+		quint64 size() const {return _size;}
+		quint64 offset() const {return _offset;}
+
+	private:
+		quint64 _size;
+		quint64 _offset;
+	};
+
+	QFile _file;
+	QMap<QString, Info> _index;
+};
+
+#endif // TAR_H

src/tcxparser.cpp

@@ -4,7 +4,7 @@
 void TCXParser::warning(const char *text) const
 {
 	const QFile *file = static_cast<QFile *>(_reader.device());
-	fprintf(stderr, "%s:%lld: %s\n", qPrintable(file->fileName()),
+	qWarning("%s:%lld: %s\n", qPrintable(file->fileName()),
 	  _reader.lineNumber(), text);
 }
 

src/temperaturegraph.h

@@ -15,7 +15,6 @@ public:
 	void clear();
 	void setUnits(enum Units units);
 	void showTracks(bool show);
-	void showRoutes(bool show) {Q_UNUSED(show);}
 
 private:
 	qreal avg() const;

src/tile.h

@@ -14,8 +14,6 @@ public:
 	const QPoint& xy() const {return _xy;}
 	QPixmap& pixmap() {return _pixmap;}
 
-	static int size() {return 256;}
-
 private:
 	int _zoom;
 	QPoint _xy;

src/timetype.h

@@ -0,0 +1,9 @@
+#ifndef TIMETYPE_H
+#define TIMETYPE_H
+
+enum TimeType {
+	Total,
+	Moving
+};
+
+#endif // TIMETYPE_H