Fixed crash on GPX files with empty tracks/routes

Some more refactoring.

Info.plist

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>NSPrincipalClass</key>
+	<string>NSApplication</string>
+	<key>CFBundleIconFile</key>
+	<string>@ICON@</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>@SHORT_VERSION@</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleExecutable</key>
+	<string>@EXECUTABLE@</string>
+	<key>CFBundleIdentifier</key>
+	<string>cz.wz.tumic.GPXSee</string>
+
+	<key>CFBundleDocumentTypes</key>
+	<array>
+		<dict>
+			<key>CFBundleTypeExtensions</key>
+			<array>
+				<string>gpx</string>
+			</array>
+			<key>CFBundleTypeMIMETypes</key>
+			<array>
+				<string>application/gpx+xml</string>
+			</array>
+			<key>CFBundleTypeIconFile</key>
+			<string>gpx.icns</string>
+			<key>CFBundleTypeName</key>
+			<string>GPS Exchange Format</string>
+			<key>CFBundleTypeRole</key>
+			<string>Viewer</string>
+		</dict>
+	</array>
+
+	<key>UTImportedTypeDeclarations</key>
+	<array>
+		<dict>
+			<key>UTTypeIdentifier</key>
+			<string>com.topografix.gpx</string>
+			<key>UTTypeReferenceURL</key>
+			<string>http://www.topografix.com/GPX/1/1</string>
+			<key>UTTypeDescription</key>
+			<string>GPS Exchange Format</string>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.xml</string>
+			</array>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.filename-extension</key>
+				<array>
+					<string>gpx</string>
+				</array>
+				<key>public.mime-type</key>
+				<string>application/gpx+xml</string>
+			</dict>
+		</dict>
+	</array>
+
+</dict>
+</plist>

README.md

@@ -2,12 +2,15 @@
 GPX viewer and analyzer.
 
 * User-definable map sources.
-* Track and elevation/speed graphs.
+* Track and elevation/speed/heart rate graphs.
 * Support for multiple tracks in one view.
-* Support for POI files (Garmin CSV format).
+* Support for POI files.
 * Export to PDF.
+* Full-screen mode
 * Native GUI for Windows, Mac OS X and Linux.
 
+![GPXSee - Linux](https://a.fsdn.com/con/app/proj/gpxsee/screenshots/linux.png)
+
 ## Build
 ### Linux/OS X
 ```shell
@@ -23,7 +26,8 @@ nmake release
 ```
 
 ## Binaries
-Available at Sourceforge: http://sourceforge.net/projects/gpxsee
+* Windows & OS X builds: http://sourceforge.net/projects/gpxsee
+* Linux packages: https://build.opensuse.org/project/repositories/home:tumic:GPXSee
 
 ## Homepage
 GPXSee homepage: http://tumic.wz.cz/gpxsee

build/env.bat

@@ -0,0 +1,6 @@
+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

@@ -0,0 +1,6 @@
+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

@@ -1,4 +1,5 @@
 TARGET = GPXSee
+VERSION = 2.19
 QT += core \
     gui \
     network
@@ -8,15 +9,11 @@ HEADERS += src/config.h \
     src/icons.h \
     src/gui.h \
     src/gpx.h \
-    src/graph.h \
-    src/track.h \
     src/parser.h \
     src/poi.h \
     src/rtree.h \
     src/ll.h \
     src/axisitem.h \
-    src/poiitem.h \
-    src/colorshop.h \
     src/keys.h \
     src/slideritem.h \
     src/markeritem.h \
@@ -27,18 +24,42 @@ HEADERS += src/config.h \
     src/filebrowser.h \
     src/map.h \
     src/maplist.h \
-    src/downloader.h
+    src/downloader.h \
+    src/units.h \
+    src/scaleitem.h \
+    src/waypoint.h \
+    src/track.h \
+    src/graphview.h \
+    src/trackpoint.h \
+    src/waypointitem.h \
+    src/palette.h \
+    src/heartrategraph.h \
+    src/range.h \
+    src/cpuarch.h \
+    src/settings.h \
+    src/app.h \
+    src/trackinfo.h \
+    src/exportdialog.h \
+    src/fileselectwidget.h \
+    src/margins.h \
+    src/temperaturegraph.h \
+    src/graphtab.h \
+    src/misc.h \
+    src/trackitem.h \
+    src/tooltip.h \
+    src/route.h \
+    src/routeitem.h \
+    src/graphitem.h \
+    src/graph.h \
+    src/pathitem.h \
+    src/pathview.h
 SOURCES += src/main.cpp \
     src/gui.cpp \
     src/gpx.cpp \
-    src/graph.cpp \
-    src/track.cpp \
     src/parser.cpp \
     src/poi.cpp \
     src/ll.cpp \
     src/axisitem.cpp \
-    src/poiitem.cpp \
-    src/colorshop.cpp \
     src/slideritem.cpp \
     src/markeritem.cpp \
     src/infoitem.cpp \
@@ -48,8 +69,41 @@ SOURCES += src/main.cpp \
     src/filebrowser.cpp \
     src/map.cpp \
     src/maplist.cpp \
-    src/downloader.cpp
+    src/downloader.cpp \
+    src/scaleitem.cpp \
+    src/track.cpp \
+    src/graphview.cpp \
+    src/waypointitem.cpp \
+    src/palette.cpp \
+    src/heartrategraph.cpp \
+    src/range.cpp \
+    src/app.cpp \
+    src/trackinfo.cpp \
+    src/exportdialog.cpp \
+    src/fileselectwidget.cpp \
+    src/temperaturegraph.cpp \
+    src/trackpoint.cpp \
+    src/misc.cpp \
+    src/waypoint.cpp \
+    src/trackitem.cpp \
+    src/tooltip.cpp \
+    src/route.cpp \
+    src/routeitem.cpp \
+    src/graphitem.cpp \
+    src/pathitem.cpp \
+    src/pathview.cpp
 RESOURCES += gpxsee.qrc
 TRANSLATIONS = lang/gpxsee_cs.ts
-macx:ICON = icons/gpxsee.icns
-win32:RC_FILE = gpxsee.rc
+macx {
+    ICON = icons/gpxsee.icns
+    QMAKE_INFO_PLIST = Info.plist
+    APP_RESOURCES.files = icons/gpx.icns \
+        pkg/maps.txt
+    APP_RESOURCES.path = Contents/Resources
+    QMAKE_BUNDLE_DATA += APP_RESOURCES
+}
+win32 {
+    RC_ICONS = icons/gpxsee.ico \
+        icons/gpx.ico
+}
+DEFINES += APP_VERSION=\\\"$$VERSION\\\"

gpxsee.qrc

@@ -2,13 +2,19 @@
     <qresource prefix="/">
         <file>icons/dialog-close.png</file>
         <file>icons/document-open.png</file>
-        <file>icons/document-save-as.png</file>
-        <file>icons/document-save.png</file>
+        <file>icons/document-print.png</file>
+        <file>icons/document-export.png</file>
         <file>icons/flag.png</file>
         <file>icons/gpxsee.png</file>
         <file>icons/application-exit.png</file>
         <file>icons/applications-internet.png</file>
         <file>icons/view-refresh.png</file>
+        <file>icons/arrow-left.png</file>
+        <file>icons/arrow-right.png</file>
+        <file>icons/arrow-left-double.png</file>
+        <file>icons/arrow-right-double.png</file>
+        <file>icons/view-fullscreen.png</file>
+        <file>icons/office-chart-line-stacked.png</file>
         <file>lang/gpxsee_cs.qm</file>
     </qresource>
 </RCC>

gpxsee.rc

@@ -1 +0,0 @@
-IDI_ICON1               ICON    DISCARDABLE     "icons/gpxsee.ico"

pkg/gpxsee.nsi

@@ -1,26 +1,31 @@
-;Include Modern UI
 !include "MUI2.nsh"
+!include "x64.nsh"
 
 ; The name of the installer
 Name "GPXSee"
+; Program version
+!define VERSION "2.19"
 
 ; The file to write
-OutFile "install.exe"
+OutFile "GPXSee-${VERSION}.exe"
 
-RequestExecutionLevel user
+; Required execution level 
+RequestExecutionLevel admin
 
 ; The default installation directory
-InstallDir "$LOCALAPPDATA\GPXSee"
+InstallDir "$PROGRAMFILES\GPXSee"
 
 ; Registry key to check for directory (so if you install again, it will 
 ; overwrite the old one automatically)
-InstallDirRegKey HKCU "Software\GPXSee" "Install_Dir"
+InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
 
 ; Registry key for uninstaller
-!define REGENTRY "Software\Microsoft\Windows\CurrentVersion\Uninstall\GPXSee" 
+!define REGENTRY "Software\Microsoft\Windows\CurrentVersion\Uninstall\GPXSee"
+; GPX file type registry entry
+!define REGGPX "GPXSee.gpx"
 
 ; Start menu page configuration
-!define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKCU" 
+!define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKLM" 
 !define MUI_STARTMENUPAGE_REGISTRY_KEY "Software\GPXSee" 
 !define MUI_STARTMENUPAGE_REGISTRY_VALUENAME "GPXSee" 
 
@@ -54,28 +59,37 @@ Section "GPXSee (required)" SEC_APP
   ; Set output path to the installation directory.
   SetOutPath $INSTDIR
   
-  ; Put file there
+  ; Put the files there
   File "gpxsee.exe"
+  File "maps.txt"
   
   ; Write the installation path into the registry
-  WriteRegStr HKCU SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
+  WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
   
   ; Write the uninstall keys for Windows
-  WriteRegStr HKCU "${REGENTRY}" "DisplayName" "GPXSee"
-  WriteRegStr HKCU "${REGENTRY}" "Publisher" "Martin Tuma"
-  WriteRegStr HKCU "${REGENTRY}" "DisplayVersion" "2.2"
-  WriteRegStr HKCU "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
-  WriteRegDWORD HKCU "${REGENTRY}" "NoModify" 1
-  WriteRegDWORD HKCU "${REGENTRY}" "NoRepair" 1
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
+  WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "${REGENTRY}" "NoModify" 1
+  WriteRegDWORD HKLM "${REGENTRY}" "NoRepair" 1
   WriteUninstaller "$INSTDIR\uninstall.exe"
 
   ; Create start menu entry and add links
+  SetShellVarContext all
   !insertmacro MUI_STARTMENU_WRITE_BEGIN Application  
     CreateDirectory "$SMPROGRAMS\$StartMenuFolder"
     CreateShortCut "$SMPROGRAMS\$StartMenuFolder\Uninstall.lnk" "$INSTDIR\Uninstall.exe"
     CreateShortCut "$SMPROGRAMS\$StartMenuFolder\GPXSee.lnk" "$INSTDIR\gpxsee.exe"
   !insertmacro MUI_STARTMENU_WRITE_END
 
+  ; Associate .gpx files
+  WriteRegStr HKCR ".gpx" "" "${REGGPX}"
+  WriteRegStr HKCR "${REGGPX}" ""  "GPS Exchange Format"
+  WriteRegStr HKCR "${REGGPX}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,1"
+  WriteRegStr HKCR "${REGGPX}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
+
 SectionEnd
 
 Section "QT libs" SEC_QT
@@ -88,14 +102,29 @@ Section "QT libs" SEC_QT
   File "libGLESv2.dll"
   File /r "platforms"
   File /r "imageformats"
+  File /r "printsupport"
  
 SectionEnd
 
 Section "MSVC runtime" SEC_MSVC
 
-  File "msvcr100.dll"
-  File "msvcp100.dll"
+  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"
+  ${Else}
+    ReadRegDword $R0 HKLM "SOFTWARE\Microsoft\VisualStudio\14.0\VC\Runtimes\x86" "Installed"
+  ${EndIf}
 
+  StrCmp $R0 "1" 0 +3
+  DetailPrint "Visual C++ 2015 Redistributable is already installed, skipping install."
+  Goto done
+
+  DetailPrint "Installing Visual C++ 2015 Redistributable..."
+  SetOutPath $TEMP
+  File "VC_redist.x86.exe"
+  ExecWait '"$TEMP/VC_redist.x86.exe" /install /quiet /norestart'
+
+  done:
 SectionEnd
 
 ;--------------------------------
@@ -105,16 +134,22 @@ SectionEnd
 Section "Uninstall"
   
   ; Remove registry keys
-  DeleteRegKey HKCU "${REGENTRY}"
-  DeleteRegKey HKCU SOFTWARE\GPXSee
+  DeleteRegKey HKLM "${REGENTRY}"
+  DeleteRegKey HKLM SOFTWARE\GPXSee
 
   ; Remove directories used
   RMDir /r "$INSTDIR"
 
   ; Remove Start menu entries
+  SetShellVarContext all
   !insertmacro MUI_STARTMENU_GETFOLDER Application $StartMenuFolder
   Delete "$SMPROGRAMS\$StartMenuFolder\*.*"
-  RMDir "$SMPROGRAMS\$StartMenuFolder"  
+  RMDir "$SMPROGRAMS\$StartMenuFolder"
+
+  ; Remove GPX file association
+  DeleteRegKey HKCR "${REGGPX}"
+  DeleteRegKey HKCR ".gpx"
+  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'  
 
 SectionEnd
 
@@ -126,7 +161,7 @@ SectionEnd
 LangString DESC_QT ${LANG_ENGLISH} \
   "QT Library. Unselct only if you have QT already installed!"
 LangString DESC_MSVC ${LANG_ENGLISH} \
-  "Visual C++ 2010 runtime components. Unselct only if you have the runtime already installed!"
+  "Visual C++ 2015 runtime components. Unselct only if you have the runtime already installed!"
 LangString DESC_APP ${LANG_ENGLISH} \
   "GPXSee application"
 

pkg/gpxsee64.nsi

@@ -0,0 +1,177 @@
+!include "MUI2.nsh"
+!include "x64.nsh"
+
+; The name of the installer
+Name "GPXSee"
+; Program version
+!define VERSION "2.19"
+
+; The file to write
+OutFile "GPXSee-${VERSION}_x64.exe"
+
+; Required execution level 
+RequestExecutionLevel admin
+
+; The default installation directory
+InstallDir "$PROGRAMFILES64\GPXSee"
+
+; Registry key to check for directory (so if you install again, it will 
+; overwrite the old one automatically)
+InstallDirRegKey HKLM "Software\GPXSee" "Install_Dir"
+
+; Registry key for uninstaller
+!define REGENTRY "Software\Microsoft\Windows\CurrentVersion\Uninstall\GPXSee"
+; GPX file type registry entry
+!define REGGPX "GPXSee.gpx" 
+
+; Start menu page configuration
+!define MUI_STARTMENUPAGE_REGISTRY_ROOT "HKLM" 
+!define MUI_STARTMENUPAGE_REGISTRY_KEY "Software\GPXSee" 
+!define MUI_STARTMENUPAGE_REGISTRY_VALUENAME "GPXSee" 
+
+Var StartMenuFolder
+
+;--------------------------------
+
+; Pages
+
+!insertmacro MUI_PAGE_WELCOME
+!insertmacro MUI_PAGE_LICENSE "licence.txt"
+!insertmacro MUI_PAGE_COMPONENTS
+!insertmacro MUI_PAGE_DIRECTORY
+!insertmacro MUI_PAGE_STARTMENU Application $StartMenuFolder
+!insertmacro MUI_PAGE_INSTFILES
+
+!insertmacro MUI_UNPAGE_CONFIRM
+!insertmacro MUI_UNPAGE_INSTFILES
+
+;--------------------------------
+
+; Languages
+!insertmacro MUI_LANGUAGE "English"
+
+Function .onInit  
+  ${If} ${RunningX64}
+    SetRegView 64
+  ${Else}  
+    MessageBox MB_OK "The 64b version of GPXSee can not be run on 32b systems."  
+    Abort  
+  ${EndIf}
+FunctionEnd 
+
+; The stuff to install
+Section "GPXSee (required)" SEC_APP
+
+  SectionIn RO
+  
+  ; Set output path to the installation directory.
+  SetOutPath $INSTDIR
+  
+  ; Put the files there
+  File "gpxsee.exe"
+  File "maps.txt"
+  
+  ; Write the installation path into the registry
+  WriteRegStr HKLM SOFTWARE\GPXSee "Install_Dir" "$INSTDIR"
+  
+  ; Write the uninstall keys for Windows
+  WriteRegStr HKLM "${REGENTRY}" "DisplayName" "GPXSee"
+  WriteRegStr HKLM "${REGENTRY}" "Publisher" "Martin Tuma"
+  WriteRegStr HKLM "${REGENTRY}" "DisplayVersion" "${VERSION}"
+  WriteRegStr HKLM "${REGENTRY}" "UninstallString" '"$INSTDIR\uninstall.exe"'
+  WriteRegDWORD HKLM "${REGENTRY}" "NoModify" 1
+  WriteRegDWORD HKLM "${REGENTRY}" "NoRepair" 1
+  WriteUninstaller "$INSTDIR\uninstall.exe"
+
+  ; Create start menu entry and add links
+  SetShellVarContext all
+  !insertmacro MUI_STARTMENU_WRITE_BEGIN Application  
+    CreateDirectory "$SMPROGRAMS\$StartMenuFolder"
+    CreateShortCut "$SMPROGRAMS\$StartMenuFolder\Uninstall.lnk" "$INSTDIR\Uninstall.exe"
+    CreateShortCut "$SMPROGRAMS\$StartMenuFolder\GPXSee.lnk" "$INSTDIR\gpxsee.exe"
+  !insertmacro MUI_STARTMENU_WRITE_END
+
+  ; Associate .gpx files
+  WriteRegStr HKCR ".gpx" "" "${REGGPX}"
+  WriteRegStr HKCR "${REGGPX}" ""  "GPS Exchange Format"
+  WriteRegStr HKCR "${REGGPX}\DefaultIcon" "" "$INSTDIR\GPXSee.exe,1"
+  WriteRegStr HKCR "${REGGPX}\shell\open\command" "" "$\"$INSTDIR\GPXSee.exe$\" $\"%1$\""
+  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
+
+SectionEnd
+
+Section "QT libs" SEC_QT
+
+  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"
+ 
+SectionEnd
+
+Section "MSVC runtime" SEC_MSVC
+
+  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
+  DetailPrint "Visual C++ 2015 Redistributable is already installed, skipping install."
+  Goto done
+
+  DetailPrint "Installing Visual C++ 2015 Redistributable..."
+  SetOutPath $TEMP
+  File "VC_redist.x64.exe"
+  ExecWait '"$TEMP/VC_redist.x64.exe" /install /quiet /norestart'
+
+  done:
+SectionEnd
+
+;--------------------------------
+
+; Uninstaller
+
+Section "Uninstall"
+  
+  ; Remove registry keys
+  SetRegView 64
+  DeleteRegKey HKLM "${REGENTRY}"
+  DeleteRegKey HKLM SOFTWARE\GPXSee
+
+  ; Remove directories used
+  RMDir /r "$INSTDIR"
+
+  ; Remove Start menu entries
+  SetShellVarContext all
+  !insertmacro MUI_STARTMENU_GETFOLDER Application $StartMenuFolder
+  Delete "$SMPROGRAMS\$StartMenuFolder\*.*"
+  RMDir "$SMPROGRAMS\$StartMenuFolder"
+  
+  ; Remove GPX file association
+  DeleteRegKey HKCR "${REGGPX}"
+  DeleteRegKey HKCR ".gpx"
+  System::Call 'shell32.dll::SHChangeNotify(i, i, i, i) v (0x08000000, 0, 0, 0)'
+
+SectionEnd
+
+;-------------------------------
+
+;Descriptions
+
+;Language strings
+LangString DESC_QT ${LANG_ENGLISH} \
+  "QT Library. Unselct only if you have QT already installed!"
+LangString DESC_MSVC ${LANG_ENGLISH} \
+  "Visual C++ 2015 runtime components. Unselct only if you have the runtime already installed!"
+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_MSVC} $(DESC_MSVC) 
+  !insertmacro MUI_DESCRIPTION_TEXT ${SEC_APP} $(DESC_APP)
+!insertmacro MUI_FUNCTION_DESCRIPTION_END

pkg/maps.txt

@@ -0,0 +1,2 @@
+Thunderforest	http://tile.thunderforest.com/outdoors/$z/$x/$y.png
+Open Street Map	http://tile.openstreetmap.org/$z/$x/$y.png

src/app.cpp

@@ -0,0 +1,51 @@
+#include <QtGlobal>
+#include <QTranslator>
+#include <QLocale>
+#include <QFileOpenEvent>
+#include <QNetworkProxyFactory>
+#include "gui.h"
+#include "app.h"
+
+
+App::App(int &argc, char **argv) : QApplication(argc, argv),
+  _argc(argc), _argv(argv)
+{
+	_translator = new QTranslator();
+
+	QString locale = QLocale::system().name();
+	_translator->load(QString(":/lang/gpxsee_") + locale);
+	installTranslator(_translator);
+#ifdef Q_OS_MAC
+	setAttribute(Qt::AA_DontShowIconsInMenus);
+#endif // Q_OS_MAC
+
+	QNetworkProxyFactory::setUseSystemConfiguration(true);
+
+	_gui = new GUI();
+}
+
+App::~App()
+{
+	delete _gui;
+	delete _translator;
+}
+
+void App::run()
+{
+	_gui->show();
+
+	for (int i = 1; i < _argc; i++)
+		_gui->openFile(QString::fromLocal8Bit(_argv[i]));
+
+	exec();
+}
+
+bool App::event(QEvent *event)
+{
+	if (event->type() == QEvent::FileOpen) {
+		QFileOpenEvent *e = static_cast<QFileOpenEvent *>(event);
+		return _gui->openFile(e->file());
+	}
+
+	return QApplication::event(event);
+}

src/app.h

@@ -0,0 +1,28 @@
+#ifndef APP_H
+#define APP_H
+
+#include <QApplication>
+
+class GUI;
+class QTranslator;
+
+class App : QApplication
+{
+	Q_OBJECT
+
+public:
+	App(int &argc, char **argv);
+	~App();
+	void run();
+
+protected:
+	bool event(QEvent *event);
+
+private:
+	int &_argc;
+	char **_argv;
+	GUI *_gui;
+	QTranslator *_translator;
+};
+
+#endif // APP_H

src/axisitem.cpp

@@ -1,9 +1,11 @@
 #include <cmath>
 #include <QPainter>
 #include "config.h"
+#include "misc.h"
 #include "axisitem.h"
 
 
+#define AXIS_WIDTH  1
 #define TICK        6
 #define PADDING     6
 #define XTICKS      15
@@ -15,38 +17,6 @@ struct Label {
 	double d;
 };
 
-static double niceNum(double x, int round)
-{
-	int expv;
-	double f;
-	double nf;
-
-	expv = floor(log10(x));
-	f = x / pow(10.0, expv);
-
-	if (round) {
-		if (f < 1.5)
-			nf = 1.0;
-		else if (f < 3.0)
-			nf = 2.0;
-		else if (f < 7.0)
-			nf = 5.0;
-		else
-			nf = 10.0;
-	} else {
-		if (f <= 1.0)
-			nf = 1.;
-		else if (f <= 2.0)
-			nf = 2.0;
-		else if (f <= 5.0)
-			nf = 5.0;
-		else
-			nf = 10.0;
-	}
-
-	return nf * pow(10.0, expv);
-}
-
 static struct Label label(double min, double max, int ticks)
 {
 	double range;
@@ -65,27 +35,34 @@ AxisItem::AxisItem(Type type, QGraphicsItem *parent) : QGraphicsItem(parent)
 {
 	_type = type;
 	_size = 0;
+
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
 }
 
-void AxisItem::setRange(const QPointF &range)
+void AxisItem::setRange(const RangeF &range)
 {
+	prepareGeometryChange();
 	_range = range;
 	updateBoundingRect();
-	prepareGeometryChange();
+	update();
 }
 
 void AxisItem::setSize(qreal size)
 {
+	prepareGeometryChange();
 	_size = size;
 	updateBoundingRect();
-	prepareGeometryChange();
+	update();
 }
 
 void AxisItem::setLabel(const QString& label)
 {
+	prepareGeometryChange();
 	_label = label;
 	updateBoundingRect();
-	prepareGeometryChange();
+	update();
 }
 
 void AxisItem::updateBoundingRect()
@@ -98,7 +75,7 @@ void AxisItem::updateBoundingRect()
 	struct Label l;
 
 
-	l = label(_range.x(), _range.y(), (_type == X) ? XTICKS : YTICKS);
+	l = label(_range.min(), _range.max(), (_type == X) ? XTICKS : YTICKS);
 	es = fm.tightBoundingRect(QString::number(l.max));
 	ss = fm.tightBoundingRect(QString::number(l.min));
 	ls = fm.tightBoundingRect(_label);
@@ -106,11 +83,21 @@ void AxisItem::updateBoundingRect()
 	if (_type == X) {
 		_boundingRect = QRectF(-ss.width()/2, -TICK/2,
 		_size + es.width()/2 + ss.width()/2,
-		ls.height() + es.height() - fm.descent() + TICK + 2*PADDING);
+		ls.height() + es.height() - fm.descent() + TICK + 2*PADDING + 1);
 	} else {
-		_boundingRect = QRectF(-(ls.height() + es.width() + 2*PADDING
-		  - fm.descent() + TICK/2), -(_size + es.height()/2
-		  + fm.descent()), ls.height() -fm.descent() + es.width() + 2*PADDING
+		int mtw = 0;
+		QRect ts;
+		qreal val;
+
+		for (int i = 0; i < ((l.max - l.min) / l.d) + 1; i++) {
+			val = l.min + i * l.d;
+			QString str = QString::number(val);
+			ts = fm.tightBoundingRect(str);
+			mtw = qMax(ts.width(), mtw);
+		}
+
+		_boundingRect = QRectF(-(ls.height() + mtw + 2*PADDING + TICK/2),
+		  -(_size + es.height()/2 + fm.descent()), ls.height() + mtw + 2*PADDING
 		  + TICK, _size + es.height()/2 + fm.descent() + ss.height()/2);
 	}
 }
@@ -123,28 +110,31 @@ void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	QFont font;
 	font.setPixelSize(FONT_SIZE);
 	font.setFamily(FONT_FAMILY);
-	painter->setFont(font);
 	QFontMetrics fm(font);
 	QRect ts, ls;
 	struct Label l;
-	qreal range = _range.y() - _range.x();
+	qreal range = _range.size();
 	qreal val;
+	QPen pen = QPen(Qt::black, AXIS_WIDTH);
 
 
+	painter->setFont(font);
+	painter->setPen(pen);
+
 	ls = fm.tightBoundingRect(_label);
 
 	if (_type == X) {
 		painter->drawLine(0, 0, _size, 0);
 
-		l = label(_range.x(), _range.y(), XTICKS);
+		l = label(_range.min(), _range.max(), XTICKS);
 		for (int i = 0; i < ((l.max - l.min) / l.d) + 1; i++) {
 			val = l.min + i * l.d;
 			QString str = QString::number(val);
 
-			painter->drawLine((_size/range) * (val - _range.x()), TICK/2,
-			  (_size/range) * (val - _range.x()), -TICK/2);
+			painter->drawLine((_size/range) * (val - _range.min()), TICK/2,
+			  (_size/range) * (val - _range.min()), -TICK/2);
 			ts = fm.tightBoundingRect(str);
-			painter->drawText(((_size/range) * (val - _range.x()))
+			painter->drawText(((_size/range) * (val - _range.min()))
 			  - (ts.width()/2), ts.height() + TICK/2 + PADDING, str);
 		}
 
@@ -153,21 +143,23 @@ void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	} else {
 		painter->drawLine(0, 0, 0, -_size);
 
-		l = label(_range.x(), _range.y(), YTICKS);
+		l = label(_range.min(), _range.max(), YTICKS);
+		int mtw = 0;
 		for (int i = 0; i < ((l.max - l.min) / l.d) + 1; i++) {
 			val = l.min + i * l.d;
 			QString str = QString::number(val);
 
-			painter->drawLine(TICK/2, -((_size/range) * (val - _range.x())),
-			  -TICK/2, -((_size/range) * (val - _range.x())));
+			painter->drawLine(TICK/2, -((_size/range) * (val - _range.min())),
+			  -TICK/2, -((_size/range) * (val - _range.min())));
 			ts = fm.tightBoundingRect(str);
+			mtw = qMax(ts.width(), mtw);
 			painter->drawText(-(ts.width() + PADDING + TICK/2), -((_size/range)
-			  * (val - _range.x())) + (ts.height()/2), str);
+			  * (val - _range.min())) + (ts.height()/2), str);
 		}
 
 		painter->rotate(-90);
-		painter->drawText(_size/2 - ls.width()/2, -(ts.width()
-		  + 2*PADDING + TICK/2), _label);
+		painter->drawText(_size/2 - ls.width()/2, -(mtw + 2*PADDING + TICK/2),
+		  _label);
 		painter->rotate(90);
 	}
 
@@ -177,7 +169,7 @@ void AxisItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 */
 }
 
-QSizeF AxisItem::margin()
+QSizeF AxisItem::margin() const
 {
 	QFont font;
 	font.setPixelSize(FONT_SIZE);
@@ -186,7 +178,7 @@ QSizeF AxisItem::margin()
 	struct Label l;
 
 
-	l = label(_range.x(), _range.y(), (_type == X) ? XTICKS : YTICKS);
+	l = label(_range.min(), _range.max(), (_type == X) ? XTICKS : YTICKS);
 	es = fm.tightBoundingRect(QString::number(l.max));
 	ss = fm.tightBoundingRect(QString::number(l.min));
 	ls = fm.tightBoundingRect(_label);
@@ -195,7 +187,18 @@ QSizeF AxisItem::margin()
 		return QSizeF(es.width()/2,
 		  ls.height() + es.height() - fm.descent() + TICK/2 + 2*PADDING);
 	} else {
-		return QSizeF(ls.height() -fm.descent() + es.width() + 2*PADDING
+		int mtw = 0;
+		QRect ts;
+		qreal val;
+
+		for (int i = 0; i < ((l.max - l.min) / l.d) + 1; i++) {
+			val = l.min + i * l.d;
+			QString str = QString::number(val);
+			ts = fm.tightBoundingRect(str);
+			mtw = qMax(ts.width(), mtw);
+		}
+
+		return QSizeF(ls.height() -fm.descent() + mtw + 2*PADDING
 		  + TICK/2, es.height()/2 + fm.descent());
 	}
 }

src/axisitem.h

@@ -2,6 +2,7 @@
 #define AXISITEM_H
 
 #include <QGraphicsItem>
+#include "range.h"
 
 class AxisItem : public QGraphicsItem
 {
@@ -14,17 +15,17 @@ public:
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
-	void setRange(const QPointF &range);
+	void setRange(const RangeF &range);
 	void setSize(qreal size);
 	void setLabel(const QString& label);
 
-	QSizeF margin();
+	QSizeF margin() const;
 
 private:
 	void updateBoundingRect();
 
 	Type _type;
-	QPointF _range;
+	RangeF _range;
 	qreal _size;
 	QString _label;
 	QRectF _boundingRect;

src/config.h

@@ -1,20 +1,37 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
-#define APP_NAME       "GPXSee"
-#define APP_HOMEPAGE   "http://tumic.wz.cz/gpxsee"
-#define APP_VERSION    "2.2"
+#include <QtGlobal>
+#include <QDir>
+#include <QApplication>
+#include <QString>
 
-#define FONT_FAMILY    "Arial"
-#define FONT_SIZE      12
+#define APP_NAME        "GPXSee"
+#define APP_HOMEPAGE    "http://tumic.wz.cz/gpxsee"
+
+#define FONT_FAMILY     "Arial"
+#define FONT_SIZE       12
+#define SCREEN_DPI      96.0
+
+#define MAP_FILE        QString("maps.txt")
+#define POI_DIR         QString("POI")
 
 #if defined(Q_OS_WIN32)
-#define APP_DIR        "GPXSee"
+#define USER_DIR        QDir::homePath() + QString("/GPXSee")
+#define GLOBAL_DIR      QApplication::applicationDirPath()
+#elif defined(Q_OS_MAC)
+#define USER_DIR        QDir::homePath() + QString("/.gpxsee")
+#define GLOBAL_DIR      QApplication::applicationDirPath() \
+                          + QString("/../Resources")
 #else
-#define APP_DIR        ".gpxsee"
+#define USER_DIR        QDir::homePath() + QString("/.gpxsee")
+#define GLOBAL_DIR      QString("/usr/share/gpxsee")
 #endif
-#define POI_DIR        APP_DIR"/POI"
-#define TILES_DIR      APP_DIR"/tiles"
-#define MAP_LIST_FILE  APP_DIR"/maps.txt"
+
+#define USER_MAP_FILE   USER_DIR + QString("/") + MAP_FILE
+#define USER_POI_DIR    USER_DIR + QString("/") + POI_DIR
+#define GLOBAL_MAP_FILE GLOBAL_DIR + QString("/") + MAP_FILE
+#define GLOBAL_POI_DIR  GLOBAL_DIR + QString("/") + POI_DIR
+#define TILES_DIR       USER_DIR + QString("/tiles")
 
 #endif /* CONFIG_H */

src/cpuarch.h

@@ -0,0 +1,42 @@
+#ifndef CPUARCH_H
+#define CPUARCH_H
+
+#include <QtGlobal>
+
+#if QT_VERSION < QT_VERSION_CHECK(5, 4, 0)
+
+#if defined(__arm64__)
+	#define CPU_ARCH_STR "arm64"
+#elif defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_M_ARM)
+	#define CPU_ARCH_STR "arm"
+#elif defined(__x86_64) || defined(__x86_64__) || defined(__amd64) \
+ || defined(_M_X64)
+	#define CPU_ARCH_STR "x86_64"
+#elif defined(__i386) || defined(__i386__) || defined(_M_IX86)
+	#define CPU_ARCH_STR "i386"
+#elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
+	#define CPU_ARCH_STR "ia64"
+#elif defined(_MIPS_ARCH_MIPS64) || defined(__mips64)
+	#define CPU_ARCH_STR "mips64"
+#elif defined(__mips) || defined(__mips__) || defined(_M_MRX000)
+	#define CPU_ARCH_STR "mips"
+#elif defined(__ppc64__) || defined(__powerpc64__) || defined(__64BIT__)
+	#define CPU_ARCH_STR "power64"
+#elif defined(__ppc__) || defined(__ppc) || defined(__powerpc__) \
+  || defined(_ARCH_COM) || defined(_ARCH_PWR) || defined(_ARCH_PPC)  \
+  || defined(_M_MPPC) || defined(_M_PPC)
+	#define CPU_ARCH_STR "power"
+#else
+	#define CPU_ARCH_STR "unknown"
+#endif
+
+#define CPU_ARCH QString(CPU_ARCH_STR)
+
+#else // QT_VERSION < 5.4
+
+#include <QSysInfo>
+#define CPU_ARCH QSysInfo::buildCpuArchitecture()
+
+#endif // QT_VERSION < 5.4
+
+#endif // CPUARCH_H

src/downloader.cpp

@@ -14,7 +14,8 @@
 #define PLATFORM_STR "Unknown"
 #endif
 
-#define USER_AGENT APP_NAME"/"APP_VERSION" ("PLATFORM_STR"; Qt "QT_VERSION_STR")"
+#define USER_AGENT \
+	APP_NAME "/" APP_VERSION " (" PLATFORM_STR "; Qt " QT_VERSION_STR ")"
 
 Downloader::Downloader()
 {
@@ -22,12 +23,12 @@ Downloader::Downloader()
 			SLOT(downloadFinished(QNetworkReply*)));
 }
 
-void Downloader::doDownload(const Download &dl)
+bool Downloader::doDownload(const Download &dl)
 {
 	QUrl url(dl.url());
 
 	if (_errorDownloads.contains(url))
-		return;
+		return false;
 
 	QNetworkRequest request(url);
 	request.setAttribute(QNetworkRequest::User, QVariant(dl.file()));
@@ -35,6 +36,8 @@ void Downloader::doDownload(const Download &dl)
 	QNetworkReply *reply = _manager.get(request);
 
 	_currentDownloads.append(reply);
+
+	return true;
 }
 
 bool Downloader::saveToDisk(const QString &filename, QIODevice *data)
@@ -61,9 +64,17 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 		fprintf(stderr, "Error downloading map tile: %s: %s\n",
 		  url.toEncoded().constData(), qPrintable(reply->errorString()));
 	} else {
+		QUrl redirect = reply->attribute(
+		  QNetworkRequest::RedirectionTargetAttribute).toUrl();
 		QString filename = reply->request().attribute(QNetworkRequest::User)
 		  .toString();
-		saveToDisk(filename, reply);
+
+		if (!redirect.isEmpty()) {
+			Download dl(redirect, filename);
+			doDownload(dl);
+		} else
+			if (!saveToDisk(filename, reply))
+				_errorDownloads.insert(url);
 	}
 
 	_currentDownloads.removeAll(reply);
@@ -73,8 +84,12 @@ void Downloader::downloadFinished(QNetworkReply *reply)
 		emit finished();
 }
 
-void Downloader::get(const QList<Download> &list)
+bool Downloader::get(const QList<Download> &list)
 {
+	bool finishEmitted = false;
+
 	for (int i = 0; i < list.count(); i++)
-		doDownload(list.at(i));
+		finishEmitted |= doDownload(list.at(i));
+
+	return finishEmitted;
 }

src/downloader.h

@@ -12,13 +12,13 @@
 class Download
 {
 public:
-	Download(const QString &url, const QString &file)
+	Download(const QUrl &url, const QString &file)
 		{_url = url; _file = file;}
-	const QString& url() const {return _url;}
+	const QUrl& url() const {return _url;}
 	const QString& file() const {return _file;}
 
 private:
-	QString _url;
+	QUrl _url;
 	QString _file;
 };
 
@@ -30,7 +30,7 @@ class Downloader : public QObject
 public:
 	static Downloader& instance()
 		{static Downloader i; return i;}
-	void get(const QList<Download> &list);
+	bool get(const QList<Download> &list);
 
 signals:
 	void finished();
@@ -43,7 +43,7 @@ private:
 	Downloader(Downloader const&);
 	void operator=(Downloader const&);
 
-	void doDownload(const Download &dl);
+	bool doDownload(const Download &dl);
 	bool saveToDisk(const QString &filename, QIODevice *data);
 
 	QNetworkAccessManager _manager;

src/elevationgraph.cpp

@@ -1,72 +1,234 @@
-#include <float.h>
+#include <cmath>
 #include "config.h"
+#include "gpx.h"
 #include "elevationgraph.h"
 
 
-ElevationGraph::ElevationGraph(QWidget *parent) : Graph(parent)
+static qreal nMin(qreal a, qreal b)
 {
-	_ascent = 0;
-	_descent = 0;
-	_max = -FLT_MAX;
-	_min = FLT_MAX;
-
-	Graph::setXLabel(tr("Distance"));
-	Graph::setYLabel(tr("Elevation"));
-	Graph::setXUnits(tr("km"));
-	Graph::setYUnits(tr("m"));
-	Graph::setXScale(0.001);
+	if (!std::isnan(a) && !std::isnan(b))
+		return qMin(a, b);
+	else if (!std::isnan(a))
+		return a;
+	else if (!std::isnan(b))
+		return b;
+	else
+		return NAN;
 }
 
-void ElevationGraph::loadGPX(const GPX &gpx)
+static qreal nMax(qreal a, qreal b)
 {
-	QVector<QPointF> data;
-	qreal min, max, ascent = 0, descent = 0;
+	if (!std::isnan(a) && !std::isnan(b))
+		return qMax(a, b);
+	else if (!std::isnan(a))
+		return a;
+	else if (!std::isnan(b))
+		return b;
+	else
+		return NAN;
+}
 
+ElevationGraph::ElevationGraph(QWidget *parent) : GraphTab(parent)
+{
+	_trackAscent = 0;
+	_routeAscent = 0;
+	_trackDescent = 0;
+	_routeDescent = 0;
+	_trackMin = NAN;
+	_trackMax = NAN;
+	_routeMin = NAN;
+	_routeMax = NAN;
 
-	gpx.elevationGraph(data);
-	if (data.isEmpty())
+	_showRoutes = true;
+	_showTracks = true;
+
+	_units = Metric;
+
+	setYUnits();
+	setYLabel(tr("Elevation"));
+
+	setMinYRange(50.0);
+}
+
+void ElevationGraph::setInfo()
+{
+	if (std::isnan(max()) || std::isnan(min()))
+		clearInfo();
+	else {
+		GraphView::addInfo(tr("Ascent"), QString::number(ascent() * yScale(),
+		  'f', 0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Descent"), QString::number(descent() * yScale(),
+		  'f', 0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		  0) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale(), 'f',
+		  0) + UNIT_SPACE + yUnits());
+	}
+}
+
+void ElevationGraph::loadGraph(const Graph &graph, Type type, PathItem *path)
+{
+	qreal ascent = 0, descent = 0;
+	qreal min, max;
+
+	if (graph.size() < 2) {
+		skipColor();
 		return;
+	}
 
-	min = max = data.at(0).y();
-
-	for (int i = 1; i < data.size(); i++) {
-		qreal cur = data.at(i).y();
-		qreal prev = data.at(i-1).y();
+	max = min = graph.at(0).y();
+	for (int j = 1; j < graph.size(); j++) {
+		qreal cur = graph.at(j).y();
+		qreal prev = graph.at(j-1).y();
 
 		if (cur > prev)
 			ascent += cur - prev;
 		if (cur < prev)
 			descent += prev - cur;
 
-		if (cur > max)
-			max = cur;
 		if (cur < min)
 			min = cur;
+		if (cur > max)
+			max = cur;
 	}
 
-	_ascent += ascent;
-	_descent += descent;
-	_max = qMax(_max, max);
-	_min = qMin(_min, min);
+	if (type == Track) {
+		_trackAscent += ascent;
+		_trackDescent += descent;
+		_trackMax = nMax(_trackMax, max);
+		_trackMin = nMin(_trackMin, min);
+	} else {
+		_routeAscent += ascent;
+		_routeDescent += descent;
+		_routeMax = nMax(_routeMax, max);
+		_routeMin = nMin(_routeMin, min);
+	}
 
-	addInfo(tr("Ascent"), QString::number(_ascent, 'f', 0)
-	  + THIN_SPACE + _yUnits);
-	addInfo(tr("Descent"), QString::number(_descent, 'f', 0)
-	  + THIN_SPACE + _yUnits);
-	addInfo(tr("Maximum"), QString::number(_max, 'f', 0)
-	  + THIN_SPACE + _yUnits);
-	addInfo(tr("Minimum"), QString::number(_min, 'f', 0)
-	  + THIN_SPACE + _yUnits);
+	GraphView::loadGraph(graph, path, type);
+}
 
-	Graph::loadData(data);
+void ElevationGraph::loadGPX(const GPX &gpx, const QList<PathItem *> &paths)
+{
+	int p = 0;
+
+	for (int i = 0; i < gpx.tracks().count(); i++)
+		loadGraph(gpx.tracks().at(i)->elevation(), Track, paths.at(p++));
+	for (int i = 0; i < gpx.routes().count(); i++)
+		loadGraph(gpx.routes().at(i)->elevation(), Route, paths.at(p++));
+
+	setInfo();
+
+	redraw();
 }
 
 void ElevationGraph::clear()
 {
-	_ascent = 0;
-	_descent = 0;
-	_max = -FLT_MAX;
-	_min = FLT_MAX;
+	_trackAscent = 0;
+	_routeAscent = 0;
+	_trackDescent = 0;
+	_routeDescent = 0;
+	_trackMin = NAN;
+	_trackMax = NAN;
+	_routeMin = NAN;
+	_routeMax = NAN;
 
-	Graph::clear();
+	GraphView::clear();
+}
+
+void ElevationGraph::setYUnits()
+{
+	if (_units == Metric) {
+		GraphView::setYUnits(tr("m"));
+		setYScale(1);
+	} else {
+		GraphView::setYUnits(tr("ft"));
+		setYScale(M2FT);
+	}
+}
+
+void ElevationGraph::setUnits(enum Units units)
+{
+	_units = units;
+
+	setYUnits();
+	setInfo();
+	GraphView::setUnits(units);
+
+	redraw();
+}
+
+void ElevationGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	setInfo();
+	showGraph(show, Track);
+
+	redraw();
+}
+
+void ElevationGraph::showRoutes(bool show)
+{
+	_showRoutes = show;
+
+	showGraph(show, Route);
+	setInfo();
+
+	redraw();
+}
+
+qreal ElevationGraph::ascent() const
+{
+	qreal val = 0;
+
+	if (_showRoutes)
+		val += _routeAscent;
+	if (_showTracks)
+		val += _trackAscent;
+
+	return val;
+}
+
+qreal ElevationGraph::descent() const
+{
+	qreal val = 0;
+
+	if (_showRoutes)
+		val += _routeDescent;
+	if (_showTracks)
+		val += _trackDescent;
+
+	return val;
+}
+
+qreal ElevationGraph::max() const
+{
+	qreal val;
+
+	if (_showRoutes && _showTracks)
+		val = nMax(_routeMax, _trackMax);
+	else if (_showTracks)
+		val = _trackMax;
+	else if (_showRoutes)
+		val = _routeMax;
+	else
+		val = NAN;
+
+	return val;
+}
+
+qreal ElevationGraph::min() const
+{
+	qreal val;
+
+	if (_showRoutes && _showTracks)
+		val = nMin(_routeMin, _trackMin);
+	else if (_showTracks)
+		val = _trackMin;
+	else if (_showRoutes)
+		val = _routeMin;
+	else
+		val = NAN;
+
+	return val;
 }

src/elevationgraph.h

@@ -1,27 +1,45 @@
 #ifndef ELEVATIONGRAPH_H
 #define ELEVATIONGRAPH_H
 
-#include "graph.h"
-#include "gpx.h"
+#include "graphtab.h"
 
-class ElevationGraph : public Graph
+class GPX;
+class PathItem;
+
+class ElevationGraph : public GraphTab
 {
 	Q_OBJECT
 
 public:
 	ElevationGraph(QWidget *parent = 0);
 
-	void loadGPX(const GPX &gpx);
+	QString label() const {return tr("Elevation");}
+	void loadGPX(const GPX &gpx, const QList<PathItem *> &paths);
 	void clear();
-
-	qreal ascent() const {return _ascent;}
-	qreal descent() const {return _descent;}
-	qreal max() const {return _max;}
-	qreal min() const {return _min;}
+	void setUnits(enum Units units);
+	void showTracks(bool show);
+	void showRoutes(bool show);
 
 private:
-	qreal _ascent, _descent;
-	qreal _max, _min;
+	enum Type {Track, Route};
+
+	qreal max() const;
+	qreal min() const;
+	qreal ascent() const;
+	qreal descent() const;
+
+	void setYUnits();
+	void setInfo();
+
+	void loadGraph(const Graph &graph, Type type, PathItem *path);
+
+	qreal _trackAscent, _trackDescent;
+	qreal _routeAscent, _routeDescent;
+	qreal _trackMax, _routeMax;
+	qreal _trackMin, _routeMin;
+
+	enum Units _units;
+	bool _showTracks, _showRoutes;
 };
 
 #endif // ELEVATIONGRAPH_H

src/exportdialog.cpp

@@ -0,0 +1,174 @@
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QFormLayout>
+#include <QGridLayout>
+#include <QDialogButtonBox>
+#include <QGroupBox>
+#include <QComboBox>
+#include <QRadioButton>
+#include <QPushButton>
+#include <QFileInfo>
+#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)
+{
+	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());
+
+	_paperSize = new QComboBox();
+	_paperSize->addItem("A3", QPrinter::A3);
+	_paperSize->addItem("A4", QPrinter::A4);
+	_paperSize->addItem("A5", QPrinter::A5);
+	_paperSize->addItem("Tabloid", QPrinter::Tabloid);
+	_paperSize->addItem("Legal", QPrinter::Legal);
+	_paperSize->addItem("Letter", QPrinter::Letter);
+	if ((index = _paperSize->findData(_printer->paperSize())) >= 0)
+		_paperSize->setCurrentIndex(index);
+
+	_portrait = new QRadioButton(tr("Portrait"));
+	_landscape = new QRadioButton(tr("Landscape"));
+	QHBoxLayout *orientationLayout = new QHBoxLayout();
+	orientationLayout->addWidget(_portrait);
+	orientationLayout->addWidget(_landscape);
+	if (_printer->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);
+	_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) {
+		_topMargin->setSingleStep(0.1);
+		_bottomMargin->setSingleStep(0.1);
+		_leftMargin->setSingleStep(0.1);
+		_rightMargin->setSingleStep(0.1);
+	}
+
+	QGridLayout *marginsLayout = new QGridLayout();
+	marginsLayout->addWidget(_topMargin, 0, 0, 1, 2, Qt::AlignCenter);
+	marginsLayout->addWidget(_leftMargin, 1, 0, 1, 1, Qt::AlignRight);
+	marginsLayout->addWidget(_rightMargin, 1, 1, 1, 1, Qt::AlignLeft);
+	marginsLayout->addWidget(_bottomMargin, 2, 0, 1, 2, Qt::AlignCenter);
+
+#ifndef Q_OS_MAC
+	QGroupBox *pageSetupBox = new QGroupBox(tr("Page Setup"));
+#endif // Q_OS_MAC
+	QFormLayout *pageSetupLayout = new QFormLayout;
+	pageSetupLayout->addRow(tr("Page size:"), _paperSize);
+	pageSetupLayout->addRow(tr("Orientation:"), orientationLayout);
+	pageSetupLayout->addRow(tr("Margins:"), marginsLayout);
+#ifdef Q_OS_MAC
+	QFrame *line = new QFrame();
+	line->setFrameShape(QFrame::HLine);
+	line->setFrameShadow(QFrame::Sunken);
+	pageSetupLayout->addRow(line);
+	pageSetupLayout->addRow(tr("File:"), _fileSelect);
+#else // Q_OS_MAC
+	pageSetupBox->setLayout(pageSetupLayout);
+#endif // Q_OS_MAC
+
+#ifndef Q_OS_MAC
+	QGroupBox *outputFileBox = new QGroupBox(tr("Output file"));
+	QHBoxLayout *outputFileLayout = new QHBoxLayout();
+	outputFileLayout->addWidget(_fileSelect);
+	outputFileBox->setLayout(outputFileLayout);
+#endif // Q_OS_MAC
+
+	QDialogButtonBox *buttonBox = new QDialogButtonBox();
+	buttonBox->addButton(tr("Export"), QDialogButtonBox::AcceptRole);
+	buttonBox->addButton(QDialogButtonBox::Cancel);
+	connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
+	connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+
+	QVBoxLayout *layout = new QVBoxLayout;
+#ifdef Q_OS_MAC
+	layout->addLayout(pageSetupLayout);
+#else // Q_OS_MAC
+	layout->addWidget(pageSetupBox);
+	layout->addWidget(outputFileBox);
+#endif // Q_OS_MAC
+	layout->addWidget(buttonBox);
+	setLayout(layout);
+
+	setWindowTitle(tr("Export to PDF"));
+	setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint);
+}
+
+bool ExportDialog::checkFile()
+{
+	if (_fileSelect->file().isEmpty()) {
+		QMessageBox::warning(this, tr("Error"), tr("No output file selected."));
+		return false;
+	}
+
+	QFile file(_fileSelect->file());
+	QFileInfo fi(file);
+	bool exists = fi.exists();
+	bool opened = false;
+
+	if (exists && fi.isDir()) {
+		QMessageBox::warning(this, tr("Error"), tr("%1 is a directory.")
+		  .arg(file.fileName()));
+		return false;
+	} else if ((exists && !fi.isWritable())
+	  || !(opened = file.open(QFile::Append))) {
+		QMessageBox::warning(this, tr("Error"), tr("%1 is not writable.")
+		  .arg(file.fileName()));
+		return false;
+	}
+	if (opened) {
+		file.close();
+		if (!exists)
+			file.remove();
+	}
+
+	return true;
+}
+
+void ExportDialog::accept()
+{
+	if (!checkFile())
+		return;
+
+	QPrinter::Orientation orientation = _portrait->isChecked()
+	  ? QPrinter::Portrait : QPrinter::Landscape;
+	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);
+
+	QDialog::accept();
+}

src/exportdialog.h

@@ -0,0 +1,39 @@
+#ifndef EXPORTDIALOG_H
+#define EXPORTDIALOG_H
+
+#include <QDialog>
+#include <QPrinter>
+
+class QComboBox;
+class QRadioButton;
+class FileSelectWidget;
+class QDoubleSpinBox;
+
+class ExportDialog : public QDialog
+{
+	Q_OBJECT
+
+public:
+	ExportDialog(QPrinter *printer, QWidget *parent = 0);
+
+public slots:
+	void accept();
+
+private:
+	bool checkFile();
+
+	QPrinter *_printer;
+
+	QPrinter::Unit _units;
+
+	FileSelectWidget *_fileSelect;
+	QComboBox *_paperSize;
+	QRadioButton *_portrait;
+	QRadioButton *_landscape;
+	QDoubleSpinBox *_topMargin;
+	QDoubleSpinBox *_bottomMargin;
+	QDoubleSpinBox *_leftMargin;
+	QDoubleSpinBox *_rightMargin;
+};
+
+#endif // EXPORTDIALOG_H

src/filebrowser.cpp

@@ -41,6 +41,16 @@ void FileBrowser::setFilter(const QStringList &filter)
 		reloadDirectory(_files.last().canonicalPath());
 }
 
+bool FileBrowser::isLast() const
+{
+	return (_files.size() > 0 && _index == _files.size() - 1);
+}
+
+bool FileBrowser::isFirst() const
+{
+	return (_files.size() > 0 && _index == 0);
+}
+
 QString FileBrowser::next()
 {
 	if (_index < 0 || _index == _files.size() - 1)
@@ -57,6 +67,24 @@ QString FileBrowser::prev()
 	return _files.at(--_index).absoluteFilePath();
 }
 
+QString FileBrowser::last()
+{
+	if (_files.empty())
+		return QString();
+
+	_index = _files.size() - 1;
+	return _files.last().absoluteFilePath();
+}
+
+QString FileBrowser::first()
+{
+	if (_files.empty())
+		return QString();
+
+	_index = 0;
+	return _files.first().absoluteFilePath();
+}
+
 void FileBrowser::reloadDirectory(const QString &path)
 {
 	QDir dir(path);

src/filebrowser.h

@@ -20,6 +20,11 @@ public:
 
 	QString next();
 	QString prev();
+	QString last();
+	QString first();
+
+	bool isLast() const;
+	bool isFirst() const;
 
 private slots:
 	void reloadDirectory(const QString &path);

src/fileselectwidget.cpp

@@ -0,0 +1,33 @@
+#include <QPushButton>
+#include <QFileDialog>
+#include <QHBoxLayout>
+#include <QFileInfo>
+#include <QApplication>
+#include <QFontMetrics>
+#include "fileselectwidget.h"
+
+
+FileSelectWidget::FileSelectWidget(QWidget *parent) : QWidget(parent)
+{
+	QFontMetrics fm(QApplication::font());
+	_edit = new QLineEdit();
+	_edit->setMinimumWidth(fm.boundingRect(QDir::homePath()).width());
+	_button = new QPushButton(tr("Browse..."));
+	connect(_button, SIGNAL(clicked()), this, SLOT(browse()));
+
+	QHBoxLayout *layout = new QHBoxLayout();
+	layout->setMargin(0);
+	layout->addWidget(_edit);
+	layout->addWidget(_button);
+	setLayout(layout);
+}
+
+void FileSelectWidget::browse()
+{
+	QFileInfo fi(_edit->text());
+	QString fileName = QFileDialog::getSaveFileName(this, tr("Select file"),
+	  fi.dir().absolutePath(), _filter);
+
+	if (!fileName.isEmpty())
+		_edit->setText(fileName);
+}

src/fileselectwidget.h

@@ -0,0 +1,30 @@
+#ifndef FILESELECTWIDGET_H
+#define FILESELECTWIDGET_H
+
+#include <QWidget>
+#include <QLineEdit>
+
+class QPushButton;
+
+class FileSelectWidget : public QWidget
+{
+	Q_OBJECT
+
+public:
+	FileSelectWidget(QWidget *parent = 0);
+
+	QString file() {return _edit->text();}
+	void setFile(const QString &file) {_edit->setText(file);}
+	void setFilter(const QString &filter) {_filter = filter;}
+
+private slots:
+	void browse();
+
+private:
+	QLineEdit *_edit;
+	QPushButton *_button;
+
+	QString _filter;
+};
+
+#endif // FILESELECTWIDGET_H

src/gpx.cpp

@@ -4,88 +4,24 @@
 #include "gpx.h"
 
 
-#define WINDOW_EF 3
-#define WINDOW_SE 11
-#define WINDOW_SF 11
-
-static bool lt(const QPointF &p1, const QPointF &p2)
+GPX::GPX() : _parser(_track_data, _route_data, _waypoint_data), _errorLine(0)
 {
-	return p1.y() < p2.y();
 }
 
-static qreal median(QVector<QPointF> v)
+GPX::~GPX()
 {
-	qSort(v.begin(), v.end(), lt);
-	return v.at(v.size() / 2).y();
+	for (int i = 0; i < _tracks.count(); i++)
+		delete _tracks.at(i);
+	for (int i = 0; i < _routes.count(); i++)
+		delete _routes.at(i);
 }
 
-static qreal MAD(QVector<QPointF> v, qreal m)
-{
-	for (int i = 0; i < v.size(); i++)
-		v[i].setY(qAbs(v.at(i).y() - m));
-	qSort(v.begin(), v.end(), lt);
-	return v.at(v.size() / 2).y();
-}
-
-static QVector<QPointF> eliminate(const QVector<QPointF> &v, int window)
-{
-	QList<int> rm;
-	QVector<QPointF> ret;
-	qreal m, M;
-
-
-	if (v.size() < window)
-		return QVector<QPointF>(v);
-
-	for (int i = window/2; i < v.size() - window/2; i++) {
-		m = median(v.mid(i - window/2, window));
-		M = MAD(v.mid(i - window/2, window), m);
-		if (qAbs((0.6745 * (v.at(i).y() - m)) / M) > 3.5)
-			rm.append(i);
-	}
-
-	QList<int>::const_iterator it = rm.begin();
-	for (int i = 0; i < v.size(); i++) {
-		if (it == rm.end() || *it != i)
-			ret.append(v.at(i));
-		else
-			it++;
-	}
-
-	return ret;
-}
-
-static QVector<QPointF> filter(const QVector<QPointF> &v, int window)
-{
-	qreal acc = 0;
-	QVector<QPointF> ret;
-
-	if (v.size() < window)
-		return QVector<QPointF>(v);
-
-	for (int i = 0; i < window; i++)
-		acc += v.at(i).y();
-	for (int i = 0; i <= window/2; i++)
-		ret.append(QPointF(v.at(i).x(), acc/window));
-
-	for (int i = window/2 + 1; i < v.size() - window/2; i++) {
-		acc += v.at(i + window/2).y() - v.at(i - (window/2 + 1)).y();
-		ret.append(QPointF(v.at(i).x(), acc/window));
-	}
-
-	for (int i = v.size() - window/2; i < v.size(); i++)
-		ret.append(QPointF(v.at(i).x(), acc/window));
-
-	return ret;
-}
-
-
 bool GPX::loadFile(const QString &fileName)
 {
-	QFile file(fileName);
 	bool ret;
+	QFile file(fileName);
+
 
-	_data.clear();
 	_error.clear();
 	_errorLine = 0;
 
@@ -94,89 +30,18 @@ bool GPX::loadFile(const QString &fileName)
 		return false;
 	}
 
-	if (!(ret = _parser.loadFile(&file, _data))) {
+	ret = _parser.loadFile(&file);
+	file.close();
+	if (ret == false) {
 		_error = _parser.errorString();
 		_errorLine = _parser.errorLine();
-	}
-	file.close();
-
-	return ret;
-}
-
-void GPX::elevationGraph(QVector<QPointF> &graph) const
-{
-	qreal dist = 0;
-	QVector<QPointF> raw;
-
-	if (!_data.size())
-		return;
-
-	raw.append(QPointF(0, _data.at(0).elevation));
-	for (int i = 1; i < _data.size(); i++) {
-		dist += llDistance(_data.at(i).coordinates, _data.at(i-1).coordinates);
-		raw.append(QPointF(dist,  _data.at(i).elevation
-		  - _data.at(i).geoidheight));
+		return false;
 	}
 
-	graph = filter(raw, WINDOW_EF);
-}
-
-void GPX::speedGraph(QVector<QPointF> &graph) const
-{
-	qreal dist = 0, v, ds, dt;
-	QVector<QPointF> raw;
-
-	if (!_data.size())
-		return;
-
-	raw.append(QPointF(0, 0));
-	for (int i = 1; i < _data.size(); i++) {
-		ds = llDistance(_data.at(i).coordinates, _data.at(i-1).coordinates);
-		dt = _data.at(i-1).timestamp.msecsTo(_data.at(i).timestamp) / 1000.0;
-		dist += ds;
-
-		if (_data.at(i).speed < 0) {
-			if (dt == 0)
-				continue;
-			v = ds / dt;
-		} else
-			v = _data.at(i).speed;
-
-		raw.append(QPointF(dist, v));
-	}
-
-	graph = filter(eliminate(raw, WINDOW_SE), WINDOW_SF);
-}
-
-void GPX::track(QVector<QPointF> &track) const
-{
-	for (int i = 0; i < _data.size(); i++)
-		track.append(ll2mercator(_data.at(i).coordinates));
-}
-
-qreal GPX::distance() const
-{
-	qreal dist = 0;
-
-	for (int i = 1; i < _data.size(); i++)
-		dist += llDistance(_data.at(i).coordinates, _data.at(i-1).coordinates);
-
-	return dist;
-}
-
-qreal GPX::time() const
-{
-	if (_data.size() < 2)
-		return 0;
-
-	return (_data.at(0).timestamp.msecsTo(_data.at(_data.size() - 1).timestamp)
-	  / 1000.0);
-}
-
-QDateTime GPX::date() const
-{
-	if (_data.size())
-		return _data.at(0).timestamp;
-	else
-		return QDateTime();
+	for (int i = 0; i < _track_data.count(); i++)
+		_tracks.append(new Track(_track_data.at(i)));
+	for (int i = 0; i < _route_data.count(); i++)
+		_routes.append(new Route(_route_data.at(i)));
+
+	return true;
 }

src/gpx.h

@@ -2,29 +2,39 @@
 #define GPX_H
 
 #include <QVector>
+#include <QList>
 #include <QPointF>
 #include <QString>
+#include "waypoint.h"
+#include "track.h"
+#include "route.h"
 #include "parser.h"
 
 class GPX
 {
 public:
+	GPX();
+	~GPX();
+
 	bool loadFile(const QString &fileName);
 	const QString &errorString() const {return _error;}
 	int errorLine() const {return _errorLine;}
 
-	void elevationGraph(QVector<QPointF> &graph) const;
-	void speedGraph(QVector<QPointF> &graph) const;
-	void track(QVector<QPointF> &track) const;
-	qreal distance() const;
-	qreal time() const;
-	QDateTime date() const;
+	const QList<Track*> &tracks() const {return _tracks;}
+	const QList<Route*> &routes() const {return _routes;}
+	const QList<Waypoint> &waypoints() const {return _waypoint_data;}
 
 private:
 	Parser _parser;
-	QVector<TrackPoint> _data;
 	QString _error;
 	int _errorLine;
+
+	QList<Track*> _tracks;
+	QList<Route*> _routes;
+
+	QList<QVector<Trackpoint> > _track_data;
+	QList<QVector<Waypoint> > _route_data;
+	QList<Waypoint> _waypoint_data;
 };
 
 #endif // GPX_H

src/graph.cpp

@@ -1,287 +0,0 @@
-#include <float.h>
-#include <QGraphicsView>
-#include <QGraphicsSceneMouseEvent>
-#include <QEvent>
-#include <QGraphicsSimpleTextItem>
-#include "slideritem.h"
-#include "sliderinfoitem.h"
-#include "infoitem.h"
-#include "config.h"
-#include "graph.h"
-
-
-#define MARGIN 10.0
-
-void Scene::mousePressEvent(QGraphicsSceneMouseEvent *e)
-{
-	if (e->button() == Qt::LeftButton)
-		emit mouseClicked(e->scenePos());
-
-	QGraphicsScene::mousePressEvent(e);
-}
-
-
-Graph::Graph(QWidget *parent)
-	: QGraphicsView(parent)
-{
-	_scene = new Scene(this);
-	setScene(_scene);
-
-	_xAxis = new AxisItem(AxisItem::X);
-	_yAxis = new AxisItem(AxisItem::Y);
-
-	_slider = new SliderItem();
-	_slider->setZValue(2.0);
-
-	connect(_slider, SIGNAL(positionChanged(const QPointF&)), this,
-	  SLOT(emitSliderPositionChanged(const QPointF&)));
-	connect(_scene, SIGNAL(mouseClicked(const QPointF&)), this,
-	  SLOT(newSliderPosition(const QPointF&)));
-
-	_info = new InfoItem();
-
-	_sliderInfo = new SliderInfoItem(_slider);
-	_sliderInfo->setZValue(2.0);
-
-	_xMax = -FLT_MAX;
-	_xMin = FLT_MAX;
-	_yMax = -FLT_MAX;
-	_yMin = FLT_MAX;
-
-	_xScale = 1;
-	_yScale = 1;
-
-	_precision = 0;
-}
-
-Graph::~Graph()
-{
-	if (_xAxis->scene() != _scene)
-		delete _xAxis;
-	if (_yAxis->scene() != _scene)
-		delete _yAxis;
-
-	if (_slider->scene() != _scene)
-		delete _slider;
-
-	if (_info->scene() != _scene)
-		delete _info;
-
-	delete _scene;
-}
-
-void Graph::updateBounds(const QPointF &point)
-{
-	if (point.x() < _xMin)
-		_xMin = point.x();
-	if (point.x() > _xMax)
-		_xMax = point.x();
-	if (point.y() < _yMin)
-		_yMin = point.y();
-	if (point.y() > _yMax)
-		_yMax = point.y();
-}
-
-void Graph::createXLabel()
-{
-	_xAxis->setLabel(QString("%1 [%2]").arg(_xLabel).arg(_xUnits));
-}
-
-void Graph::createYLabel()
-{
-	_yAxis->setLabel(QString("%1 [%2]").arg(_yLabel).arg(_yUnits));
-}
-
-void Graph::setXLabel(const QString &label)
-{
-	_xLabel = label;
-	createXLabel();
-}
-
-void Graph::setYLabel(const QString &label)
-{
-	_yLabel = label;
-	createYLabel();
-}
-
-void Graph::setXUnits(const QString &units)
-{
-	_xUnits = units;
-	createXLabel();
-}
-
-void Graph::setYUnits(const QString &units)
-{
-	_yUnits = units;
-	createYLabel();
-}
-
-void Graph::loadData(const QVector<QPointF> &data)
-{
-	QPainterPath path;
-	QGraphicsPathItem *pi;
-	QColor color = _colorShop.color();
-
-
-	if (data.size() < 2)
-		return;
-
-	updateBounds(data.at(0));
-	path.moveTo(data.at(0).x(), -data.at(0).y());
-	for (int i = 1; i < data.size(); i++) {
-		path.lineTo(data.at(i).x(), -data.at(i).y());
-		updateBounds(data.at(i));
-	}
-
-	pi = new QGraphicsPathItem(path);
-	QBrush brush(color, Qt::SolidPattern);
-	QPen pen(brush, 0);
-	pi->setPen(pen);
-	_scene->addItem(pi);
-	_graphs.append(pi);
-
-	if (_graphs.size() > 1)
-		_sliderInfo->hide();
-
-	resize(viewport()->size() - QSizeF(MARGIN, MARGIN));
-}
-
-void Graph::resize(const QSizeF &size)
-{
-	QRectF r;
-	QSizeF mx, my;
-	QTransform transform;
-	qreal xs, ys;
-
-
-	if (_xAxis->scene() == _scene)
-		_scene->removeItem(_xAxis);
-	if (_yAxis->scene() == _scene)
-		_scene->removeItem(_yAxis);
-	if (_slider->scene() == _scene)
-		_scene->removeItem(_slider);
-	if (_info->scene() == _scene)
-		_scene->removeItem(_info);
-
-	for (int i = 0; i < _graphs.size(); i++)
-		_graphs.at(i)->resetTransform();
-
-	_xAxis->setRange(QPointF(_xMin * _xScale, _xMax * _xScale));
-	_yAxis->setRange(QPointF(_yMin * _yScale, _yMax * _yScale));
-	mx = _xAxis->margin();
-	my = _yAxis->margin();
-	r = _scene->itemsBoundingRect();
-	xs = (size.width() - (my.width() + mx.width())) / r.width();
-	ys = (size.height() - (mx.height() + my.height())
-	  - _info->boundingRect().height()) / r.height();
-	transform.scale(xs, ys);
-
-	for (int i = 0; i < _graphs.size(); i++)
-		_graphs.at(i)->setTransform(transform);
-
-	r = _scene->itemsBoundingRect();
-	_xAxis->setSize(r.width());
-	_yAxis->setSize(r.height());
-	_xAxis->setPos(r.bottomLeft());
-	_yAxis->setPos(r.bottomLeft());
-	_scene->addItem(_xAxis);
-	_scene->addItem(_yAxis);
-
-	_slider->setArea(r);
-	_slider->setPos(r.bottomLeft());
-	_scene->addItem(_slider);
-
-	r = _scene->itemsBoundingRect();
-	_info->setPos(r.topLeft() + QPointF(r.width()/2
-	  - _info->boundingRect().width()/2, -_info->boundingRect().height()));
-	_scene->addItem(_info);
-
-	_scene->setSceneRect(_scene->itemsBoundingRect());
-}
-
-void Graph::resizeEvent(QResizeEvent *)
-{
-	if (!_graphs.empty())
-		resize(viewport()->size() - QSizeF(MARGIN, MARGIN));
-}
-
-void Graph::plot(QPainter *painter, const QRectF &target)
-{
-	qreal ratio = target.width() / target.height();
-	QSizeF orig = _scene->sceneRect().size();
-	QSizeF canvas = QSizeF(orig.height() * ratio, orig.height());
-
-	resize(canvas);
-	_slider->hide();
-	_info->hide();
-	_scene->render(painter, target, QRectF(), Qt::KeepAspectRatioByExpanding);
-	_slider->show();
-	_info->show();
-	resize(orig);
-}
-
-void Graph::clear()
-{
-	if (_xAxis->scene() == _scene)
-		_scene->removeItem(_xAxis);
-	if (_yAxis->scene() == _scene)
-		_scene->removeItem(_yAxis);
-
-	if (_slider->scene() == _scene)
-		_scene->removeItem(_slider);
-
-	if (_info->scene() == _scene)
-		_scene->removeItem(_info);
-	_sliderInfo->show();
-
-	_info->clear();
-	_scene->clear();
-	_graphs.clear();
-	_colorShop.reset();
-
-	_xMax = -FLT_MAX;
-	_xMin = FLT_MAX;
-	_yMax = -FLT_MAX;
-	_yMin = FLT_MAX;
-
-	_scene->setSceneRect(0, 0, 0, 0);
-}
-
-void Graph::emitSliderPositionChanged(const QPointF &pos)
-{
-	if (_graphs.isEmpty())
-		return;
-
-	qreal val = pos.x() / _slider->area().width();
-	emit sliderPositionChanged(val);
-
-	const QPainterPath &path = _graphs.at(0)->path();
-	QPointF p = path.pointAtPercent(val);
-	qreal r = (p.y() - path.boundingRect().bottom())
-	  / path.boundingRect().height();
-	_sliderInfo->setPos(QPointF(0, _slider->boundingRect().height() * r));
-	_sliderInfo->setText(QString::number(-p.y() * _yScale, 'f', _precision));
-}
-
-qreal Graph::sliderPosition() const
-{
-	return _slider->pos().x() / _slider->area().width();
-}
-
-void Graph::setSliderPosition(qreal pos)
-{
-	_slider->setPos(pos * _slider->area().width(), 0);
-}
-
-void Graph::newSliderPosition(const QPointF &pos)
-{
-	if (_slider->area().contains(pos)) {
-		_slider->setPos(pos);
-		emitSliderPositionChanged(pos);
-	}
-}
-
-void Graph::addInfo(const QString &key, const QString &value)
-{
-	_info->insert(key, value);
-}

src/graph.h

@@ -1,89 +1,31 @@
 #ifndef GRAPH_H
 #define GRAPH_H
 
-#include <QGraphicsView>
-#include <QGraphicsScene>
 #include <QVector>
-#include <QList>
-#include <QPointF>
-#include "axisitem.h"
-#include "colorshop.h"
+#include <cmath>
 
+enum GraphType {Distance, Time};
 
-#define THIN_SPACE     QString::fromUtf8("\xE2\x80\x89")
-
-class SliderItem;
-class SliderInfoItem;
-class InfoItem;
-
-class Scene : public QGraphicsScene
+class GraphPoint
 {
-	Q_OBJECT
-
 public:
-	Scene(QObject *parent = 0) : QGraphicsScene(parent) {}
-	void mousePressEvent(QGraphicsSceneMouseEvent *e);
+	GraphPoint(qreal s = NAN, qreal t = NAN, qreal y = NAN)
+	  : _s(s), _t(t), _y(y) {}
 
-signals:
-	void mouseClicked(const QPointF &pos);
-};
+	qreal s() const {return _s;}
+	qreal t() const {return _t;}
+	qreal y() const {return _y;}
 
-class Graph : public QGraphicsView
-{
-	Q_OBJECT
-
-public:
-	Graph(QWidget *parent = 0);
-	~Graph();
-
-	void loadData(const QVector<QPointF> &data);
-	void setXLabel(const QString &label);
-	void setYLabel(const QString &label);
-	void setXUnits(const QString &units);
-	void setYUnits(const QString &units);
-	void setXScale(qreal scale) {_xScale = scale;}
-	void setYScale(qreal scale) {_yScale = scale;}
-	void setPrecision(int p) {_precision = p;}
-
-	void plot(QPainter *painter, const QRectF &target);
-	void clear();
-
-	qreal sliderPosition() const;
-	void setSliderPosition(qreal pos);
-
-	void addInfo(const QString &key, const QString &value);
-
-signals:
-	void sliderPositionChanged(qreal);
-
-protected:
-	void resizeEvent(QResizeEvent *);
-
-	qreal _xScale, _yScale;
-	QString _xUnits, _yUnits;
-	QString _xLabel, _yLabel;
-	int _precision;
-
-private slots:
-	void emitSliderPositionChanged(const QPointF &pos);
-	void newSliderPosition(const QPointF &pos);
+	void setS(qreal s) {_s = s;}
+	void setT(qreal t) {_t = t;}
+	void setY(qreal y) {_y = y;}
 
 private:
-	void createXLabel();
-	void createYLabel();
-	void updateBounds(const QPointF &point);
-	void resize(const QSizeF &size);
-
-	Scene *_scene;
-
-	AxisItem *_xAxis, *_yAxis;
-	SliderItem *_slider;
-	SliderInfoItem *_sliderInfo;
-	InfoItem *_info;
-
-	QList<QGraphicsPathItem*> _graphs;
-	qreal _xMin, _xMax, _yMin, _yMax;
-	ColorShop _colorShop;
+	qreal _s;
+	qreal _t;
+	qreal _y;
 };
 
+typedef QVector<GraphPoint> Graph;
+
 #endif // GRAPH_H

src/graphitem.cpp

@@ -0,0 +1,160 @@
+#include <QPainter>
+#include "graphitem.h"
+
+
+#define GRAPH_WIDTH 1
+#define HOVER_WIDTH 2
+
+static qreal yAtX(const QPainterPath &path, qreal x)
+{
+	int low = 0;
+	int high = path.elementCount() - 1;
+	int mid = 0;
+
+	Q_ASSERT(high > low);
+	Q_ASSERT(x >= path.elementAt(low).x && x <= path.elementAt(high).x);
+
+	while (low <= high) {
+		mid = low + ((high - low) / 2);
+		const QPainterPath::Element &e = path.elementAt(mid);
+		if (e.x > x)
+			high = mid - 1;
+		else if (e.x < x)
+			low = mid + 1;
+		else
+			return e.y;
+	}
+
+	QLineF l;
+	if (path.elementAt(mid).x < x)
+		l = QLineF(path.elementAt(mid).x, path.elementAt(mid).y,
+		  path.elementAt(mid+1).x, path.elementAt(mid+1).y);
+	else
+		l = QLineF(path.elementAt(mid-1).x, path.elementAt(mid-1).y,
+		  path.elementAt(mid).x, path.elementAt(mid).y);
+
+	return l.pointAt((x - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
+}
+
+static bool hasTime(const Graph &graph)
+{
+	for (int i = 0; i < graph.count(); i++)
+		if (std::isnan(graph.at(i).t()))
+			return false;
+
+	return true;
+}
+
+GraphItem::GraphItem(const Graph &graph, QGraphicsItem *parent)
+  : QGraphicsObject(parent)
+{
+	_id = 0;
+	_type = Distance;
+
+	_pen = QPen(Qt::black, GRAPH_WIDTH);
+	_pen.setCosmetic(true);
+
+	_distancePath.moveTo(graph.first().s(), -graph.first().y());
+	for (int i = 1; i < graph.size(); i++)
+		_distancePath.lineTo(graph.at(i).s(), -graph.at(i).y());
+
+	if (hasTime(graph)) {
+		_timePath.moveTo(graph.first().t(), -graph.first().y());
+		for (int i = 1; i < graph.size(); i++)
+			_timePath.lineTo(graph.at(i).t(), -graph.at(i).y());
+	}
+}
+
+void GraphItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+
+	painter->setPen(_pen);
+	painter->drawPath((_type == Distance) ? _distancePath : _timePath);
+
+/*
+	QPen p = QPen(QBrush(Qt::red), 0);
+	painter->setPen(p);
+	painter->drawRect(boundingRect());
+*/
+}
+
+void GraphItem::setGraphType(GraphType type)
+{
+	prepareGeometryChange();
+	_type = type;
+}
+
+void GraphItem::setColor(const QColor &color)
+{
+	_pen.setColor(color);
+	update();
+}
+
+qreal GraphItem::yAtX(qreal x)
+{
+	return ::yAtX((_type == Distance) ? _distancePath : _timePath, x);
+}
+
+qreal GraphItem::distanceAtTime(qreal time)
+{
+	int low = 0;
+	int high = _timePath.elementCount() - 1;
+	int mid = 0;
+
+	Q_ASSERT(high > low);
+	Q_ASSERT(time >= _timePath.elementAt(low).x
+	  && time <= _timePath.elementAt(high).x);
+
+	while (low <= high) {
+		mid = low + ((high - low) / 2);
+		const QPainterPath::Element &e = _timePath.elementAt(mid);
+		if (e.x > time)
+			high = mid - 1;
+		else if (e.x < time)
+			low = mid + 1;
+		else
+			return _distancePath.elementAt(mid).x;
+	}
+
+	QLineF l;
+	if (_timePath.elementAt(mid).x < time)
+		l = QLineF(_timePath.elementAt(mid).x, _distancePath.elementAt(mid).x,
+		  _timePath.elementAt(mid+1).x, _distancePath.elementAt(mid+1).x);
+	else
+		l = QLineF(_timePath.elementAt(mid-1).x, _distancePath.elementAt(mid-1).x,
+		  _timePath.elementAt(mid).x, _distancePath.elementAt(mid).x);
+
+	return l.pointAt((time - l.p1().x()) / (l.p2().x() - l.p1().x())).y();
+}
+
+void GraphItem::emitSliderPositionChanged(qreal pos)
+{
+	if (_type == Time) {
+		if (!_timePath.isEmpty()) {
+			if (pos <= _timePath.elementAt(_timePath.elementCount() - 1).x)
+				emit sliderPositionChanged(distanceAtTime(pos));
+			else
+				emit sliderPositionChanged(_distancePath.elementAt(
+			      _distancePath.elementCount() - 1).x + 1);
+		} else
+			emit sliderPositionChanged(_distancePath.elementAt(
+		      _distancePath.elementCount() - 1).x + 1);
+	} else
+		emit sliderPositionChanged(pos);
+}
+
+void GraphItem::selected(bool selected)
+{
+	if (selected) {
+		_pen.setWidth(HOVER_WIDTH);
+		setZValue(zValue() + 1.0);
+	} else {
+		_pen.setWidth(GRAPH_WIDTH);
+		setZValue(zValue() - 1.0);
+	}
+
+	update();
+}

src/graphitem.h

@@ -0,0 +1,43 @@
+#ifndef GRAPHITEM_H
+#define GRAPHITEM_H
+
+#include <QGraphicsObject>
+#include <QPen>
+#include "graph.h"
+
+class GraphItem : public QGraphicsObject
+{
+	Q_OBJECT
+
+public:
+	GraphItem(const Graph &graph, QGraphicsItem *parent = 0);
+
+	QRectF boundingRect() const
+	  {return (_type == Distance) ? _distancePath.boundingRect()
+	  : _timePath.boundingRect();}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	void setGraphType(GraphType type);
+	int id() const {return _id;}
+	void setId(int id) {_id = id;}
+	void setColor(const QColor &color);
+
+	qreal yAtX(qreal x);
+	qreal distanceAtTime(qreal time);
+
+signals:
+	void sliderPositionChanged(qreal);
+
+public slots:
+	void emitSliderPositionChanged(qreal);
+	void selected(bool selected);
+
+private:
+	int _id;
+	QPen _pen;
+	QPainterPath _distancePath, _timePath;
+	GraphType _type;
+};
+
+#endif // GRAPHITEM_H

src/graphtab.h

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

src/graphview.cpp

@@ -0,0 +1,423 @@
+#include <QGraphicsSceneMouseEvent>
+#include <QEvent>
+#include <QPaintEngine>
+#include <QPaintDevice>
+#include "config.h"
+#include "axisitem.h"
+#include "slideritem.h"
+#include "sliderinfoitem.h"
+#include "infoitem.h"
+#include "graph.h"
+#include "graphitem.h"
+#include "pathitem.h"
+#include "graphview.h"
+
+
+#define MARGIN 10.0
+
+
+void Scene::mousePressEvent(QGraphicsSceneMouseEvent *e)
+{
+	if (e->button() == Qt::LeftButton)
+		emit mouseClicked(e->scenePos());
+
+	QGraphicsScene::mousePressEvent(e);
+}
+
+
+GraphView::GraphView(QWidget *parent)
+	: QGraphicsView(parent)
+{
+	_scene = new Scene(this);
+	setScene(_scene);
+
+	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+
+	_xAxis = new AxisItem(AxisItem::X);
+	_xAxis->setZValue(1.0);
+	_yAxis = new AxisItem(AxisItem::Y);
+	_yAxis->setZValue(1.0);
+	_slider = new SliderItem();
+	_slider->setZValue(2.0);
+	_sliderInfo = new SliderInfoItem(_slider);
+	_sliderInfo->setZValue(2.0);
+	_info = new InfoItem();
+
+	connect(_slider, SIGNAL(positionChanged(const QPointF&)), this,
+	  SLOT(emitSliderPositionChanged(const QPointF&)));
+	connect(_scene, SIGNAL(mouseClicked(const QPointF&)), this,
+	  SLOT(newSliderPosition(const QPointF&)));
+
+	_xScale = 1;
+	_yScale = 1;
+	_yOffset = 0;
+
+	_precision = 0;
+	_minYRange = 0.01;
+
+	_sliderPos = 0;
+
+	_units = Metric;
+	_graphType = Distance;
+
+	setGraphType(_graphType);
+	setUnits(_units);
+}
+
+GraphView::~GraphView()
+{
+	if (_xAxis->scene() != _scene)
+		delete _xAxis;
+	if (_yAxis->scene() != _scene)
+		delete _yAxis;
+	if (_slider->scene() != _scene)
+		delete _slider;
+	if (_info->scene() != _scene)
+		delete _info;
+
+	for (int i = 0; i < _graphs.count(); i++)
+		if (_graphs.at(i)->scene() != _scene)
+			delete _graphs[i];
+}
+
+void GraphView::createXLabel()
+{
+	_xAxis->setLabel(QString("%1 [%2]").arg(_xLabel).arg(_xUnits));
+}
+
+void GraphView::createYLabel()
+{
+	_yAxis->setLabel(QString("%1 [%2]").arg(_yLabel).arg(_yUnits));
+}
+
+void GraphView::setYLabel(const QString &label)
+{
+	_yLabel = label;
+	createYLabel();
+}
+
+void GraphView::setYUnits(const QString &units)
+{
+	_yUnits = units;
+	createYLabel();
+}
+
+void GraphView::setXUnits()
+{
+	if (_graphType == Distance) {
+		if (_units == Metric) {
+			if (bounds().width() < KMINM) {
+				_xUnits = tr("m");
+				_xScale = 1;
+			} else {
+				_xUnits = tr("km");
+				_xScale = M2KM;
+			}
+		} else {
+			if (bounds().width() < MIINM) {
+				_xUnits = tr("ft");
+				_xScale = M2FT;
+			} else {
+				_xUnits = tr("mi");
+				_xScale = M2MI;
+			}
+		}
+	} else {
+		    if (bounds().width() < MININS) {
+				_xUnits = tr("s");
+				_xScale = 1;
+			} else if (bounds().width() < HINS) {
+				_xUnits = tr("min");
+				_xScale = MIN2S;
+			} else {
+				_xUnits = tr("h");
+				_xScale = H2S;
+			}
+	}
+
+	createXLabel();
+}
+
+void GraphView::setUnits(Units units)
+{
+	_units = units;
+	setXUnits();
+}
+
+void GraphView::setGraphType(GraphType type)
+{
+	_graphType = type;
+	_bounds = QRectF();
+
+	for (int i = 0; i < _graphs.count(); i++) {
+		_graphs.at(i)->setGraphType(type);
+		if (_graphs.at(i)->scene() == _scene)
+			_bounds |= _graphs.at(i)->boundingRect();
+	}
+
+	if (type == Distance)
+		_xLabel = tr("Distance");
+	else
+		_xLabel = tr("Time");
+	setXUnits();
+
+	redraw();
+}
+
+void GraphView::loadGraph(const Graph &graph, PathItem *path, int id)
+{
+	if (graph.size() < 2)
+		return;
+
+	GraphItem *gi = new GraphItem(graph);
+	gi->setGraphType(_graphType);
+	gi->setId(id);
+	gi->setColor(_palette.color());
+
+	connect(this, SIGNAL(sliderPositionChanged(qreal)), gi,
+	  SLOT(emitSliderPositionChanged(qreal)));
+	connect(gi, SIGNAL(sliderPositionChanged(qreal)), path,
+	  SLOT(moveMarker(qreal)));
+	connect(path, SIGNAL(selected(bool)), gi, SLOT(selected(bool)));
+
+	_graphs.append(gi);
+
+	if (!_hide.contains(id)) {
+		_visible.append(gi);
+		_scene->addItem(gi);
+		_bounds |= gi->boundingRect();
+		setXUnits();
+	}
+}
+
+void GraphView::removeItem(QGraphicsItem *item)
+{
+	if (item->scene() == _scene)
+		_scene->removeItem(item);
+}
+
+void GraphView::addItem(QGraphicsItem *item)
+{
+	if (item->scene() != _scene)
+		_scene->addItem(item);
+}
+
+void GraphView::showGraph(bool show, int id)
+{
+	if (show)
+		_hide.remove(id);
+	else
+		_hide.insert(id);
+
+	_visible.clear();
+	_bounds = QRectF();
+	for (int i = 0; i < _graphs.count(); i++) {
+		GraphItem* gi = _graphs.at(i);
+		if (_hide.contains(gi->id()))
+			removeItem(gi);
+		else {
+			addItem(gi);
+			_visible.append(gi);
+			_bounds |= gi->boundingRect();
+		}
+	}
+}
+
+void GraphView::redraw()
+{
+	redraw(viewport()->size() - QSizeF(MARGIN, MARGIN));
+}
+
+QRectF GraphView::bounds() const
+{
+	QRectF br(_bounds);
+	br.moveTopLeft(QPointF(br.left(), -br.top() - br.height()));
+	return br;
+}
+
+void GraphView::redraw(const QSizeF &size)
+{
+	QRectF r;
+	QSizeF mx, my;
+	RangeF rx, ry;
+	QTransform transform;
+	qreal xs, ys;
+
+
+	if (_visible.isEmpty() || _bounds.isNull()) {
+		removeItem(_xAxis);
+		removeItem(_yAxis);
+		removeItem(_slider);
+		removeItem(_info);
+		_scene->setSceneRect(QRectF());
+		return;
+	}
+
+	addItem(_xAxis);
+	addItem(_yAxis);
+	addItem(_slider);
+	addItem(_info);
+
+	rx = RangeF(bounds().left() * _xScale, bounds().right() * _xScale);
+	ry = RangeF(bounds().top() * _yScale + _yOffset, bounds().bottom() * _yScale
+	  + _yOffset);
+	if (ry.size() < _minYRange)
+		ry.resize(_minYRange);
+
+	_xAxis->setRange(rx);
+	_yAxis->setRange(ry);
+	mx = _xAxis->margin();
+	my = _yAxis->margin();
+
+	r = _bounds;
+	if (r.height() < _minYRange)
+		r.adjust(0, -(_minYRange/2 - r.height()/2), 0,
+		  _minYRange/2 - r.height()/2);
+
+	xs = (size.width() - (my.width() + mx.width())) / r.width();
+	ys = (size.height() - (mx.height() + my.height())
+	  - _info->boundingRect().height()) / r.height();
+	transform.scale(xs, ys);
+
+	for (int i = 0; i < _visible.size(); i++)
+		_visible.at(i)->setTransform(transform);
+
+	QPointF p(r.left() * xs, r.top() * ys);
+	QSizeF s(r.width() * xs, r.height() * ys);
+	r = QRectF(p, s);
+	if (r.height() < _minYRange * ys)
+		r.adjust(0, -(_minYRange/2 * ys - r.height()/2), 0,
+		  (_minYRange/2) * ys - r.height()/2);
+
+	_xAxis->setSize(r.width());
+	_yAxis->setSize(r.height());
+	_xAxis->setPos(r.bottomLeft());
+	_yAxis->setPos(r.bottomLeft());
+
+	_slider->setArea(r);
+	updateSliderPosition();
+
+	r |= _xAxis->sceneBoundingRect();
+	r |= _yAxis->sceneBoundingRect();
+	_info->setPos(r.topLeft() + QPointF(r.width()/2
+	  - _info->boundingRect().width()/2, -_info->boundingRect().height()));
+
+	_scene->setSceneRect(_scene->itemsBoundingRect());
+}
+
+void GraphView::resizeEvent(QResizeEvent *)
+{
+	redraw();
+}
+
+void GraphView::plot(QPainter *painter, const QRectF &target)
+{
+	qreal ratio = painter->paintEngine()->paintDevice()->logicalDpiX()
+	  / SCREEN_DPI;
+	QSizeF canvas = QSizeF(target.width() / ratio, target.height() / ratio);
+
+	setUpdatesEnabled(false);
+	redraw(canvas);
+	if (_slider->pos().x() == _slider->area().left())
+		_slider->hide();
+	_scene->render(painter, target);
+	_slider->show();
+	redraw();
+	setUpdatesEnabled(true);
+}
+
+void GraphView::clear()
+{
+	_slider->clear();
+	_info->clear();
+
+	for (int i = 0; i < _graphs.count(); i++)
+		delete _graphs[i];
+
+	_graphs.clear();
+	_visible.clear();
+	_palette.reset();
+
+	_bounds = QRectF();
+	_sliderPos = 0;
+
+	_scene->setSceneRect(0, 0, 0, 0);
+}
+
+void GraphView::updateSliderPosition()
+{
+	if (bounds().width() <= 0)
+		return;
+
+	if (_sliderPos <= bounds().right() && _sliderPos >= bounds().left()) {
+		_slider->setPos((_sliderPos / bounds().width())
+		  * _slider->area().width(), _slider->area().bottom());
+		_slider->setVisible(!_visible.isEmpty());
+	} else {
+		_slider->setPos(_slider->area().left(), _slider->area().bottom());
+		_slider->setVisible(false);
+	}
+
+	updateSliderInfo();
+}
+
+void GraphView::updateSliderInfo()
+{
+	_sliderInfo->setVisible(_visible.count() == 1);
+	if (!_sliderInfo->isVisible())
+		return;
+
+	QRectF br(_visible.first()->boundingRect());
+	if (br.height() < _minYRange)
+		br.adjust(0, -(_minYRange/2 - br.height()/2), 0,
+		  _minYRange/2 - br.height()/2);
+
+	qreal y = _visible.first()->yAtX(_sliderPos);
+	qreal r = (y - br.bottom()) / br.height();
+
+	qreal pos = (_sliderPos / bounds().width()) * _slider->area().width();
+	SliderInfoItem::Side s = (pos + _sliderInfo->boundingRect().width()
+	  > _slider->area().right()) ? SliderInfoItem::Left : SliderInfoItem::Right;
+
+	_sliderInfo->setSide(s);
+	_sliderInfo->setPos(QPointF(0, _slider->boundingRect().height() * r));
+	_sliderInfo->setText(QString::number(-y * _yScale + _yOffset, 'f',
+	  _precision));
+}
+
+void GraphView::emitSliderPositionChanged(const QPointF &pos)
+{
+	if (_slider->area().width() <= 0)
+		return;
+
+	_sliderPos = (pos.x() / _slider->area().width()) * bounds().width();
+	updateSliderPosition();
+
+	emit sliderPositionChanged(_sliderPos);
+}
+
+void GraphView::setSliderPosition(qreal pos)
+{
+	if (_visible.isEmpty())
+		return;
+
+	_sliderPos = pos;
+	updateSliderPosition();
+}
+
+void GraphView::newSliderPosition(const QPointF &pos)
+{
+	if (_slider->area().contains(pos))
+		_slider->setPos(pos);
+}
+
+void GraphView::addInfo(const QString &key, const QString &value)
+{
+	_info->insert(key, value);
+}
+
+void GraphView::clearInfo()
+{
+	_info->clear();
+}

src/graphview.h

@@ -0,0 +1,117 @@
+#ifndef GRAPHVIEW_H
+#define GRAPHVIEW_H
+
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include <QVector>
+#include <QList>
+#include <QSet>
+#include <QPointF>
+#include "palette.h"
+#include "units.h"
+#include "graph.h"
+
+
+class AxisItem;
+class SliderItem;
+class SliderInfoItem;
+class InfoItem;
+class GraphItem;
+class PathItem;
+
+class Scene : public QGraphicsScene
+{
+	Q_OBJECT
+
+public:
+	Scene(QObject *parent = 0) : QGraphicsScene(parent) {}
+	void mousePressEvent(QGraphicsSceneMouseEvent *e);
+
+signals:
+	void mouseClicked(const QPointF &pos);
+};
+
+class GraphView : public QGraphicsView
+{
+	Q_OBJECT
+
+public:
+	GraphView(QWidget *parent = 0);
+	~GraphView();
+
+	void loadGraph(const Graph &graph, PathItem *path, int id = 0);
+	int count() const {return _graphs.count();}
+	void redraw();
+	void clear();
+
+	void showGraph(bool show, int id = 0);
+	void setGraphType(GraphType type);
+	void setUnits(Units units);
+
+	const QString &yLabel() const {return _yLabel;}
+	const QString &yUnits() const {return _yUnits;}
+	qreal yScale() const {return _yScale;}
+	qreal yOffset() const {return _yOffset;}
+	void setYLabel(const QString &label);
+	void setYUnits(const QString &units);
+	void setYScale(qreal scale) {_yScale = scale;}
+	void setYOffset(qreal offset) {_yOffset = offset;}
+
+	void setSliderPrecision(int precision) {_precision = precision;}
+	void setMinYRange(qreal range) {_minYRange = range;}
+
+	qreal sliderPosition() const {return _sliderPos;}
+	void setSliderPosition(qreal pos);
+
+	void plot(QPainter *painter, const QRectF &target);
+
+signals:
+	void sliderPositionChanged(qreal);
+
+protected:
+	QRectF bounds() const;
+	void redraw(const QSizeF &size);
+	void addInfo(const QString &key, const QString &value);
+	void clearInfo();
+	void skipColor() {_palette.color();}
+	void resizeEvent(QResizeEvent *);
+
+private slots:
+	void emitSliderPositionChanged(const QPointF &pos);
+	void newSliderPosition(const QPointF &pos);
+
+private:
+	void setXUnits();
+	void createXLabel();
+	void createYLabel();
+	void updateSliderPosition();
+	void updateSliderInfo();
+	void removeItem(QGraphicsItem *item);
+	void addItem(QGraphicsItem *item);
+
+	qreal _xScale, _yScale;
+	qreal _yOffset;
+	QString _xUnits, _yUnits;
+	QString _xLabel, _yLabel;
+	int _precision;
+	qreal _minYRange;
+	qreal _sliderPos;
+
+	Scene *_scene;
+
+	AxisItem *_xAxis, *_yAxis;
+	SliderItem *_slider;
+	SliderInfoItem *_sliderInfo;
+	InfoItem *_info;
+
+	QList<GraphItem*> _graphs;
+	QList<GraphItem*> _visible;
+	QSet<int> _hide;
+	QRectF _bounds;
+	Palette _palette;
+
+	Units _units;
+	GraphType _graphType;
+};
+
+#endif // GRAPHVIEW_H

src/gui.h

@@ -2,20 +2,26 @@
 #define GUI_H
 
 #include <QMainWindow>
-#include <QMenu>
-#include <QToolBar>
-#include <QTabWidget>
-#include <QGraphicsView>
-#include <QActionGroup>
-#include <QAction>
-#include <QLabel>
+#include <QString>
+#include <QList>
+#include <QDate>
+#include <QPrinter>
+#include "units.h"
+#include "graph.h"
 #include "poi.h"
+#include "margins.h"
 
-
+class QMenu;
+class QToolBar;
+class QTabWidget;
+class QActionGroup;
+class QAction;
+class QLabel;
+class QSignalMapper;
+class QPrinter;
 class FileBrowser;
-class ElevationGraph;
-class SpeedGraph;
-class Track;
+class GraphTab;
+class PathView;
 class Map;
 
 class GUI : public QMainWindow
@@ -23,7 +29,8 @@ class GUI : public QMainWindow
 	Q_OBJECT
 
 public:
-	GUI();
+	GUI(QWidget *parent = 0);
+	~GUI();
 
 	bool openFile(const QString &fileName);
 
@@ -31,83 +38,158 @@ private slots:
 	void about();
 	void keys();
 	void dataSources();
-	void saveFile();
-	void saveAs();
+	void printFile();
+	void exportFile();
 	void openFile();
-	void closeFile();
+	void closeAll();
 	void reloadFile();
 	void openPOIFile();
+	void closePOIFiles();
 	void showPOI(bool checked);
 	void showMap(bool checked);
 	void showGraphs(bool checked);
 	void showToolbars(bool checked);
+	void showFullscreen(bool checked);
+	void showTracks(bool show);
+	void showRoutes(bool show);
+	void clearMapCache();
+	void nextMap();
+	void prevMap();
 
 	void mapChanged(int);
 	void graphChanged(int);
+	void poiFileChecked(int);
+
+	void next();
+	void prev();
+	void last();
+	void first();
+
+	void setMetricUnits() {setUnits(Metric);}
+	void setImperialUnits() {setUnits(Imperial);}
+	void setDistanceGraph() {setGraphType(Distance);}
+	void setTimeGraph() {setGraphType(Time);}
+
+	void sliderPositionChanged(qreal pos);
 
 private:
-	void loadFiles();
+	typedef QPair<QDate, QDate> DateRange;
 
+	void loadMaps();
+	void loadPOIs();
+	void closeFiles();
+	void plot(QPrinter *printer);
+
+	QAction *createPOIFileAction(int index);
+	void createPOIFilesActions();
 	void createMapActions();
 	void createActions();
 	void createMenus();
 	void createToolBars();
 	void createStatusBar();
-	void createTrackView();
-	void createTrackGraphs();
+	void createPathView();
+	void createGraphTabs();
 
+	bool openPOIFile(const QString &fileName);
 	bool loadFile(const QString &fileName);
-	void saveFile(const QString &fileName);
+	void exportFile(const QString &fileName);
 	void updateStatusBarInfo();
+	void updateWindowTitle();
+	void updateNavigationActions();
+	void updateGraphTabs();
+	void updateTrackView();
 
-	void keyPressEvent(QKeyEvent * event);
+	void setUnits(Units units);
+	void setGraphType(GraphType type);
 
-	QMenu *_fileMenu;
-	QMenu *_helpMenu;
-	QMenu *_poiMenu;
-	QMenu *_mapMenu;
-	QMenu *_settingsMenu;
+	qreal distance();
+	qreal time();
+	int mapIndex(const QString &name);
+	void readSettings();
+	void writeSettings();
+
+	void keyPressEvent(QKeyEvent *event);
+	void closeEvent(QCloseEvent *event);
 
 	QToolBar *_fileToolBar;
 	QToolBar *_showToolBar;
-	QTabWidget *_trackGraphs;
-	QActionGroup *_fileActionGroup;
+	QToolBar *_navigationToolBar;
+	QMenu *_poiFilesMenu;
 
+	QActionGroup *_fileActionGroup;
+	QActionGroup *_navigationActionGroup;
 	QAction *_exitAction;
 	QAction *_keysAction;
 	QAction *_dataSourcesAction;
 	QAction *_aboutAction;
 	QAction *_aboutQtAction;
-	QAction *_saveFileAction;
-	QAction *_saveAsAction;
+	QAction *_printFileAction;
+	QAction *_exportFileAction;
 	QAction *_openFileAction;
 	QAction *_closeFileAction;
 	QAction *_reloadFileAction;
 	QAction *_openPOIAction;
+	QAction *_closePOIAction;
 	QAction *_showPOIAction;
+	QAction *_overlapPOIAction;
+	QAction *_showPOILabelsAction;
 	QAction *_showMapAction;
+	QAction *_fullscreenAction;
+	QAction *_clearMapCacheAction;
 	QAction *_showGraphsAction;
+	QAction *_distanceGraphAction;
+	QAction *_timeGraphAction;
 	QAction *_showToolbarsAction;
+	QAction *_nextAction;
+	QAction *_prevAction;
+	QAction *_lastAction;
+	QAction *_firstAction;
+	QAction *_metricUnitsAction;
+	QAction *_imperialUnitsAction;
+	QAction *_nextMapAction;
+	QAction *_prevMapAction;
+	QAction *_showTracksAction;
+	QAction *_showRoutesAction;
+	QAction *_showWaypointsAction;
+	QAction *_showWaypointLabelsAction;
+	QAction *_showRouteWaypointsAction;
 	QList<QAction*> _mapActions;
+	QList<QAction*> _poiFilesActions;
+
+	QSignalMapper *_poiFilesSM;
 
 	QLabel *_fileNameLabel;
 	QLabel *_distanceLabel;
 	QLabel *_timeLabel;
 
-	ElevationGraph *_elevationGraph;
-	SpeedGraph *_speedGraph;
-	Track *_track;
+	PathView *_pathView;
+	QTabWidget *_graphTabWidget;
+	QList<GraphTab*> _tabs;
 
 	POI _poi;
 	QList<Map*> _maps;
 
 	FileBrowser *_browser;
 	QList<QString> _files;
-	QString _saveFileName;
 	Map *_currentMap;
 
-	qreal _distance;
+	int _trackCount;
+	int _routeCount;
+	int _waypointCount;
+	qreal _trackDistance;
+	qreal _routeDistance;
 	qreal _time;
+	DateRange _dateRange;
+
+	qreal _sliderPos;
+
+	int _frameStyle;
+	bool _showGraphs;
+
+	QString _exportFileName;
+	QPrinter::PaperSize _exportPaperSize;
+	QPrinter::Orientation _exportOrientation;
+	MarginsF _exportMargins;
 };
 
 #endif // GUI_H

src/heartrategraph.cpp

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

src/heartrategraph.h

@@ -0,0 +1,33 @@
+#ifndef HEARTRATEGRAPH_H
+#define HEARTRATEGRAPH_H
+
+#include "graphtab.h"
+
+class GPX;
+
+class HeartRateGraph : public GraphTab
+{
+	Q_OBJECT
+
+public:
+	HeartRateGraph(QWidget *parent = 0);
+
+	QString label() const {return tr("Heart rate");}
+	void loadGPX(const GPX &gpx, const QList<PathItem *> &paths);
+	void clear();
+	void setUnits(enum Units) {}
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
+
+private:
+	qreal avg() const;
+	qreal max() const {return bounds().bottom();}
+	void setInfo();
+
+	QList<QPointF> _avg;
+
+	enum Units _units;
+	bool _showTracks;
+};
+
+#endif // HEARTRATEGRAPH_H

src/icons.h

@@ -1,22 +1,20 @@
 #ifndef ICONS_H
 #define ICONS_H
 
-#include <QtGlobal>
-
 #define APP_ICON         ":/icons/gpxsee.png"
 #define OPEN_FILE_ICON   ":/icons/document-open.png"
-#define SAVE_FILE_ICON   ":/icons/document-save.png"
-#define SAVE_AS_ICON     ":/icons/document-save-as.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"
-
-#if QT_VERSION < QT_VERSION_CHECK(5, 0, 0)
-#define QT_ICON          ":/trolltech/qmessagebox/images/qtlogo-64.png"
-#else
-#define QT_ICON          ":/qt-project.org/qmessagebox/images/qtlogo-64.png"
-#endif
+#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"
 
 #endif /* ICONS_H */

src/infoitem.cpp

@@ -3,7 +3,6 @@
 #include "config.h"
 #include "infoitem.h"
 
-
 #define PADDING     10
 
 InfoItem::InfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
@@ -11,24 +10,21 @@ InfoItem::InfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 
 }
 
-QRectF InfoItem::boundingRect() const
+void InfoItem::updateBoundingRect()
 {
 	QFont font;
 	font.setPixelSize(FONT_SIZE);
 	font.setFamily(FONT_FAMILY);
 	QFontMetrics fm(font);
 	QList<KV>::const_iterator i;
-	int width = 0;
-
-	if (_list.isEmpty())
-		return QRectF();
+	qreal width = 0;
 
 	for (i = _list.constBegin(); i != _list.constEnd(); i++) {
 		width += fm.width(i->key + ": ");
 		width += fm.width(i->value) + ((i == _list.end() - 1) ? 0 : PADDING);
 	}
 
-	return QRectF(0, 0, width, fm.height());
+	_boundingRect = QRectF(0, 0, width, _list.isEmpty() ? 0 : fm.height());
 }
 
 void InfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
@@ -69,10 +65,19 @@ void InfoItem::insert(const QString &key, const QString &value)
 	KV kv(key, value);
 	int i;
 
+	prepareGeometryChange();
+
 	if ((i = _list.indexOf(kv)) < 0)
 		_list.append(kv);
 	else
 		_list[i] = kv;
 
-	prepareGeometryChange();
+	updateBoundingRect();
+}
+
+void InfoItem::clear()
+{
+	prepareGeometryChange();
+	_list.clear();
+	updateBoundingRect();
 }

src/infoitem.h

@@ -9,14 +9,17 @@ class InfoItem : public QGraphicsItem
 public:
 	InfoItem(QGraphicsItem *parent = 0);
 
-	QRectF boundingRect() const;
+	QRectF boundingRect() const {return _boundingRect;}
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
 	void insert(const QString &key, const QString &value);
-	void clear() {_list.clear();}
+	void clear();
+	bool isEmpty() {return _list.isEmpty();}
 
 private:
+	void updateBoundingRect();
+
 	class KV {
 	public:
 		QString key;
@@ -29,6 +32,7 @@ private:
 	};
 
 	QList<KV> _list;
+	QRectF _boundingRect;
 };
 
 #endif // INFOITEM_H

src/keys.h

@@ -1,8 +1,31 @@
 #ifndef KEYS_H
 #define KEYS_H
 
-#define NEXT_KEY         Qt::Key_Space
-#define PREV_KEY         Qt::Key_Backspace
-#define MODIFIER         Qt::ShiftModifier
+#include <Qt>
+#include <QKeySequence>
+
+#define NEXT_KEY                Qt::Key_Space
+#define PREV_KEY                Qt::Key_Backspace
+#define FIRST_KEY               Qt::Key_Home
+#define LAST_KEY                Qt::Key_End
+#define MODIFIER                Qt::ShiftModifier
+
+#define QUIT_SHORTCUT           QKeySequence::Quit
+#define OPEN_SHORTCUT           QKeySequence::Open
+#define CLOSE_SHORTCUT          QKeySequence::Close
+#define RELOAD_SHORTCUT         QKeySequence::Refresh
+#define EXPORT_SHORTCUT         QKeySequence(Qt::CTRL + Qt::Key_E)
+#define SHOW_POI_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_P)
+#define SHOW_MAP_SHORTCUT       QKeySequence(Qt::CTRL + Qt::Key_M)
+#define NEXT_MAP_SHORTCUT       QKeySequence::Forward
+#define PREV_MAP_SHORTCUT       QKeySequence::Back
+#define SHOW_GRAPHS_SHORTCUT    QKeySequence(Qt::CTRL + Qt::Key_G)
+#define DISTANCE_GRAPH_SHORTCUT QKeySequence(Qt::CTRL + Qt::Key_D)
+#define TIME_GRAPH_SHORTCUT     QKeySequence(Qt::CTRL + Qt::Key_T)
+#ifdef Q_OS_MAC
+#define FULLSCREEN_SHORTCUT     QKeySequence(Qt::META + Qt::CTRL + Qt::Key_F)
+#else // Q_OS_MAC
+#define FULLSCREEN_SHORTCUT     QKeySequence(Qt::Key_F11)
+#endif // Q_OS_MAC
 
 #endif // KEYS_H

src/ll.cpp

@@ -35,6 +35,16 @@ QPointF ll2mercator(const QPointF &ll)
 	return m;
 }
 
+QPointF mercator2ll(const QPointF &m)
+{
+	QPointF ll;
+
+	ll.setX(m.x());
+	ll.setY(rad2deg(2 * atan(exp(deg2rad(m.y()))) - M_PI/2));
+
+	return ll;
+}
+
 QPoint mercator2tile(const QPointF &m, int z)
 {
 	QPoint tile;
@@ -68,3 +78,9 @@ int scale2zoom(qreal scale)
 		return ZOOM_MAX;
 	return zoom;
 }
+
+qreal zoom2resolution(int zoom, qreal y)
+{
+	return (WGS84_RADIUS * 2 * M_PI / 256 * cos(2 * atan(exp(deg2rad(y)))
+	  - M_PI/2)) / pow(2.0, zoom);
+}

src/ll.h

@@ -8,9 +8,11 @@
 #define ZOOM_MIN 3
 
 QPointF ll2mercator(const QPointF &ll);
+QPointF mercator2ll(const QPointF &m);
 qreal llDistance(const QPointF &p1, const QPointF &p2);
 QPoint mercator2tile(const QPointF &m, int zoom);
 QPointF tile2mercator(const QPoint &tile, int zoom);
 int scale2zoom(qreal scale);
+qreal zoom2resolution(int zoom, qreal y);
 
 #endif // LL_H

src/main.cpp

@@ -1,28 +1,9 @@
-#include <QApplication>
-#include <QTranslator>
-#include <QLocale>
-#include "gui.h"
-#include "icons.h"
-
+#include "app.h"
 
 int main(int argc, char *argv[])
 {
-	QApplication app(argc, argv);
+	App app(argc, argv);
+	app.run();
 
-	QString locale = QLocale::system().name();
-	QTranslator translator;
-	translator.load(QString(":/lang/gpxsee_") + locale);
-	app.installTranslator(&translator);
-#ifdef Q_OS_MAC
-	app.setAttribute(Qt::AA_DontShowIconsInMenus);
-#endif // Q_OS_MAC
-
-	GUI gui;
-	gui.setWindowIcon(QIcon(QPixmap(APP_ICON)));
-	gui.show();
-
-	for (int i = 1; i < argc; i++)
-		gui.openFile(argv[i]);
-
-	return app.exec();
+	return 0;
 }

src/map.cpp

@@ -6,7 +6,8 @@
 #include "map.h"
 
 
-Map::Map(const QString &name, const QString &url)
+Map::Map(QObject *parent, const QString &name, const QString &url)
+  : QObject(parent)
 {
 	_name = name;
 	_url = url;
@@ -14,10 +15,9 @@ Map::Map(const QString &name, const QString &url)
 	connect(&Downloader::instance(), SIGNAL(finished()), this,
 	  SLOT(emitLoaded()));
 
-	if (!QDir::home().mkpath(QString(TILES_DIR"/%1").arg(_name)))
-		fprintf(stderr, "Error creating tiles dir: %s\n",
-		  qPrintable(QDir::home().absolutePath() + QString("/"TILES_DIR"/%1")
-			.arg(_name)));
+	QString path = TILES_DIR + QString("/") + _name;
+	if (!QDir().mkpath(path))
+		fprintf(stderr, "Error creating tiles dir: %s\n", qPrintable(path));
 }
 
 void Map::emitLoaded()
@@ -25,33 +25,111 @@ void Map::emitLoaded()
 	emit loaded();
 }
 
-void Map::loadTiles(QList<Tile> &list)
+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) {
+	for (int i = 0; i < list.size(); i++) {
 		Tile &t = list[i];
-		QString file = QString("%1/"TILES_DIR"/%2/%3-%4-%5")
-		  .arg(QDir::homePath()).arg(_name).arg(t.zoom()).arg(t.xy().rx())
-		  .arg(t.xy().ry());
+		QString file = tileFile(t);
 		QFileInfo fi(file);
 
-		if (fi.exists()) {
-			if (!t.pixmap().load(file))
-				fprintf(stderr, "Error loading map tile: %s\n",
-				  qPrintable(file));
-		} else {
-			t.pixmap() = QPixmap(TILE_SIZE, TILE_SIZE);
-			t.pixmap().fill();
-
-			QString url(_url);
-			url.replace("$z", QString::number(t.zoom()));
-			url.replace("$x", QString::number(t.xy().x()));
-			url.replace("$y", QString::number(t.xy().y()));
-			dl.append(Download(url, 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

@@ -2,8 +2,6 @@
 #define MAP_H
 
 #include <QPixmap>
-#include "downloader.h"
-
 
 class Tile
 {
@@ -11,8 +9,8 @@ public:
 	Tile(const QPoint &xy, int zoom)
 		{_xy = xy; _zoom = zoom;}
 
-	int zoom() {return _zoom;}
-	QPoint& xy() {return _xy;}
+	int zoom() const {return _zoom;}
+	const QPoint& xy() const {return _xy;}
 	QPixmap& pixmap() {return _pixmap;}
 
 private:
@@ -26,19 +24,29 @@ class Map : public QObject
 {
 	Q_OBJECT
 
+public:
+	Map(QObject *parent = 0, const QString &name = QString(),
+	  const QString &url = QString());
+
+	const QString &name() const {return _name;}
+	void loadTiles(QList<Tile> &list, bool block);
+	void clearCache();
+
 signals:
 	void loaded();
 
-public:
-	Map(const QString &name, const QString &url);
-
-	const QString &name() {return _name;}
-	void loadTiles(QList<Tile> &list);
-
 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;
 };

src/maplist.cpp

@@ -1,9 +1,10 @@
 #include <QFile>
 #include <QFileInfo>
+#include "map.h"
 #include "maplist.h"
 
 
-QList<Map*> MapList::load(const QString &fileName)
+QList<Map*> MapList::load(QObject *parent, const QString &fileName)
 {
 	QList<Map*> mapList;
 	QFileInfo fi(fileName);
@@ -32,7 +33,7 @@ QList<Map*> MapList::load(const QString &fileName)
 		QByteArray ba1 = list[0].trimmed();
 		QByteArray ba2 = list[1].trimmed();
 
-		mapList.append(new Map(QString::fromUtf8(ba1.data(), ba1.size()),
+		mapList.append(new Map(parent, QString::fromUtf8(ba1.data(), ba1.size()),
 		  QString::fromLatin1(ba2.data(), ba2.size())));
 	}
 

src/maplist.h

@@ -2,13 +2,16 @@
 #define MAPLIST_H
 
 #include <QList>
-#include "map.h"
+#include <QString>
+#include <QObject>
 
+class Map;
 
 class MapList
 {
 public:
-	static QList<Map*> load(const QString &fileName);
+	static QList<Map*> load(QObject *parent = 0,
+	  const QString &fileName = QString());
 };
 
 #endif // MAPLIST_H

src/margins.cpp

@@ -0,0 +1,9 @@
+#include "margins.h"
+
+
+QDebug operator<<(QDebug dbg, const MarginsF &margins)
+{
+	dbg.nospace() << "MarginsF(" << margins.left() << ", " << margins.top()
+	  << ", " << margins.right() << margins.bottom() << ")";
+	return dbg.maybeSpace();
+}

src/margins.h

@@ -0,0 +1,30 @@
+#ifndef MARGINS_H
+#define MARGINS_H
+
+#include <QtGlobal>
+#include <QDebug>
+
+class MarginsF
+{
+public:
+	MarginsF() {_left = 0; _top = 0; _right = 0; _bottom = 0;}
+	MarginsF(qreal left, qreal top, qreal right, qreal bottom)
+	  {_left = left, _top = top; _right = right; _bottom = bottom;}
+
+	qreal left() const {return _left;}
+	qreal top() const {return _top;}
+	qreal right() const {return _right;}
+	qreal bottom() const {return _bottom;}
+
+	qreal &rleft() {return _left;}
+	qreal &rtop() {return _top;}
+	qreal &rright() {return _right;}
+	qreal &rbottom() {return _bottom;}
+
+private:
+	qreal _left, _top, _right, _bottom;
+};
+
+QDebug operator<<(QDebug dbg, const MarginsF &margins);
+
+#endif // MARGINS_H

src/markeritem.cpp

@@ -19,10 +19,18 @@ void MarkerItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option
 {
 	Q_UNUSED(option);
 	Q_UNUSED(widget);
+	bool aa;
+
+
+	if ((aa = painter->testRenderHint(QPainter::Antialiasing)))
+		painter->setRenderHint(QPainter::Antialiasing, false);
 
 	painter->setPen(Qt::red);
 	painter->drawLine(-SIZE/2, 0, SIZE/2, 0);
 	painter->drawLine(0, -SIZE/2, 0, SIZE/2);
 
+	if (aa)
+		painter->setRenderHint(QPainter::Antialiasing, true);
+
 //	painter->drawRect(boundingRect());
 }

src/misc.cpp

@@ -0,0 +1,86 @@
+#include <cmath>
+#include <QApplication>
+#include "misc.h"
+
+
+double niceNum(double x, int round)
+{
+	int expv;
+	double f;
+	double nf;
+
+	expv = (int)floor(log10(x));
+	f = x / pow(10.0, expv);
+
+	if (round) {
+		if (f < 1.5)
+			nf = 1.0;
+		else if (f < 3.0)
+			nf = 2.0;
+		else if (f < 7.0)
+			nf = 5.0;
+		else
+			nf = 10.0;
+	} else {
+		if (f <= 1.0)
+			nf = 1.0;
+		else if (f <= 2.0)
+			nf = 2.0;
+		else if (f <= 5.0)
+			nf = 5.0;
+		else
+			nf = 10.0;
+	}
+
+	return nf * pow(10.0, expv);
+}
+
+QString timeSpan(qreal time)
+{
+	unsigned h, m, s;
+
+	h = time / 3600;
+	m = (time - (h * 3600)) / 60;
+	s = time - (h * 3600) - (m * 60);
+
+	return QString("%1:%2:%3").arg(h).arg(m, 2, 10, QChar('0'))
+	  .arg(s, 2, 10, QChar('0'));
+}
+
+QString distance(qreal value, Units units)
+{
+	if (units == Imperial) {
+		if (value < MIINM)
+			return QString::number(value * M2FT, 'f', 0) + UNIT_SPACE
+			  + qApp->translate("Misc", "ft");
+		else
+			return QString::number(value * M2MI, 'f', 1) + UNIT_SPACE
+			  + qApp->translate("Misc", "mi");
+	} else {
+		if (value < KMINM)
+			return QString::number(value, 'f', 0) + UNIT_SPACE
+			  + qApp->translate("Misc", "m");
+		else
+			return QString::number(value * M2KM, 'f', 1) + UNIT_SPACE
+			  + qApp->translate("Misc", "km");
+	}
+}
+
+QString elevation(qreal value, Units units)
+{
+	if (units == Metric)
+		return QString::number(value, 'f', 0) + UNIT_SPACE
+		  + qApp->translate("Misc", "m");
+	else
+		return QString::number(value * M2FT, 'f', 0) + UNIT_SPACE
+		  + qApp->translate("Misc", "ft");
+}
+
+QString coordinates(const QPointF &value)
+{
+	QChar yH = (value.y() < 0) ? 'S' : 'N';
+	QChar xH = (value.x() < 0) ? 'W' : 'E';
+
+	return QString::number(qAbs(value.y()), 'f', 5) + yH + "," + QChar(0x00A0)
+	  + QString::number(qAbs(value.x()), 'f', 5) + xH;
+}

src/misc.h

@@ -0,0 +1,15 @@
+#ifndef MISC_H
+#define MISC_H
+
+#include <QString>
+#include <QPoint>
+#include "units.h"
+
+double niceNum(double x, int round);
+
+QString timeSpan(qreal time);
+QString distance(qreal value, Units units);
+QString elevation(qreal value, Units units);
+QString coordinates(const QPointF &value);
+
+#endif // MISC_H

src/palette.cpp

@@ -1,4 +1,4 @@
-#include "colorshop.h"
+#include "palette.h"
 
 
 #define HUE_INIT		0.1f
@@ -43,12 +43,12 @@ static unsigned hsv2rgb(float h, float s, float v)
 	  + (unsigned)(b * 256);
 }
 
-ColorShop::ColorShop()
+Palette::Palette()
 {
 	_hueState = HUE_INIT;
 }
 
-QColor ColorShop::color()
+QColor Palette::color()
 {
 	_hueState += HUE_INCREMENT;
 	_hueState -= (int) _hueState;
@@ -56,7 +56,7 @@ QColor ColorShop::color()
 	return QColor(hsv2rgb(_hueState, SATURATION, VALUE));
 }
 
-void ColorShop::reset()
+void Palette::reset()
 {
 	_hueState = HUE_INIT;
 }

src/palette.h

@@ -1,12 +1,12 @@
-#ifndef COLORSHOP_H
-#define COLORSHOP_H
+#ifndef PALETTE_H
+#define PALETTE_H
 
 #include <QColor>
 
-class ColorShop
+class Palette
 {
 public:
-	ColorShop();
+	Palette();
 	QColor color();
 	void reset();
 
@@ -14,4 +14,4 @@ private:
 	float _hueState;
 };
 
-#endif // COLORSHOP_H
+#endif // PALLETE_H

src/parser.cpp

@@ -1,96 +1,241 @@
 #include "parser.h"
 
 
-void Parser::handleExtensionData(QVector<TrackPoint> &data,
-  QStringRef element, const QString &value)
+void Parser::handleTrackpointData(DataType type, const QString &value)
 {
-	if (element == "speed")
-		data.last().speed = value.toDouble();
+	switch (type) {
+		case Elevation:
+			_track->last().setElevation(value.toLatin1().toDouble());
+			break;
+		case Time:
+			_track->last().setTimestamp(QDateTime::fromString(value.toLatin1(),
+			  Qt::ISODate));
+			break;
+		case Geoidheight:
+			_track->last().setGeoidHeight(value.toLatin1().toDouble());
+			break;
+		case Speed:
+			_track->last().setSpeed(value.toDouble());
+			break;
+		case HeartRate:
+			_track->last().setHeartRate(value.toDouble());
+			break;
+		case Temperature:
+			_track->last().setTemperature(value.toDouble());
+			break;
+		default:
+			break;
+	}
 }
 
-void Parser::handleTrekPointData(QVector<TrackPoint> &data,
-  QStringRef element, const QString &value)
+void Parser::handleWaypointData(DataType type, const QString &value)
 {
-	if (element == "ele")
-		data.last().elevation = value.toLatin1().toDouble();
-	if (element == "time")
-		data.last().timestamp = QDateTime::fromString(value.toLatin1(),
-		  Qt::ISODate);
-	if (element == "geoidheight")
-		data.last().geoidheight = value.toLatin1().toDouble();
+	switch (type) {
+		case Name:
+			_waypoints.last().setName(value);
+			break;
+		case Description:
+			_waypoints.last().setDescription(value);
+			break;
+	    case Time:
+		    _waypoints.last().setTimestamp(QDateTime::fromString(
+			  value.toLatin1(), Qt::ISODate));
+		    break;
+	    case Elevation:
+		    _waypoints.last().setElevation(value.toLatin1().toDouble());
+		    break;
+	    case Geoidheight:
+		    _waypoints.last().setGeoidHeight(value.toLatin1().toDouble());
+		    break;
+		default:
+			break;
+	}
 }
 
-void Parser::handleTrekPointAttributes(QVector<TrackPoint> &data,
-  const QXmlStreamAttributes &attr)
+void Parser::handleRoutepointData(DataType type, const QString &value)
 {
-	data.last().coordinates.setY(attr.value("lat").toLatin1().toDouble());
-	data.last().coordinates.setX(attr.value("lon").toLatin1().toDouble());
+	switch (type) {
+		case Name:
+			_route->last().setName(value);
+			break;
+		case Description:
+			_route->last().setDescription(value);
+			break;
+		case Time:
+			_route->last().setTimestamp(QDateTime::fromString(
+			  value.toLatin1(), Qt::ISODate));
+			break;
+		case Elevation:
+			_route->last().setElevation(value.toLatin1().toDouble());
+			break;
+		case Geoidheight:
+			_route->last().setGeoidHeight(value.toLatin1().toDouble());
+			break;
+		default:
+			break;
+	}
 }
 
+void Parser::handleTrackpointAttributes(const QXmlStreamAttributes &attr)
+{
+	_track->last().setCoordinates(QPointF(
+	  attr.value("lon").toLatin1().toDouble(),
+	  attr.value("lat").toLatin1().toDouble()));
+}
 
-void Parser::extensions(QVector<TrackPoint> &data)
+void Parser::handleRoutepointAttributes(const QXmlStreamAttributes &attr)
+{
+	_route->last().setCoordinates(QPointF(
+	  attr.value("lon").toLatin1().toDouble(),
+	  attr.value("lat").toLatin1().toDouble()));
+}
+
+void Parser::handleWaypointAttributes(const QXmlStreamAttributes &attr)
+{
+	_waypoints.last().setCoordinates(QPointF(
+	  attr.value("lon").toLatin1().toDouble(),
+	  attr.value("lat").toLatin1().toDouble()));
+}
+
+void Parser::tpExtension()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "hr")
+			handleTrackpointData(HeartRate, _reader.readElementText());
+		else if (_reader.name() == "atemp")
+			handleTrackpointData(Temperature, _reader.readElementText());
+		else
+			_reader.skipCurrentElement();
+	}
+}
+
+void Parser::extensions()
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "speed")
-			handleExtensionData(data, _reader.name(), _reader.readElementText());
+			handleTrackpointData(Speed, _reader.readElementText());
+		else if (_reader.name() == "hr" || _reader.name() == "heartrate")
+			handleTrackpointData(HeartRate, _reader.readElementText());
+		else if (_reader.name() == "temp")
+			handleTrackpointData(Temperature, _reader.readElementText());
+		else if (_reader.name() == "TrackPointExtension")
+			tpExtension();
 		else
 			_reader.skipCurrentElement();
 	}
 }
 
-void Parser::trekPointData(QVector<TrackPoint> &data)
+void Parser::trackpointData()
 {
 	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "ele" || _reader.name() == "time"
-		  || _reader.name() == "geoidheight")
-			handleTrekPointData(data, _reader.name(), _reader.readElementText());
+		if (_reader.name() == "ele")
+			handleTrackpointData(Elevation, _reader.readElementText());
+		else if (_reader.name() == "time")
+			handleTrackpointData(Time, _reader.readElementText());
+		else if (_reader.name() == "geoidheight")
+			handleTrackpointData(Geoidheight, _reader.readElementText());
 		else if (_reader.name() == "extensions")
-			extensions(data);
+			extensions();
 		else
 			_reader.skipCurrentElement();
 	}
 }
 
-void Parser::trekPoints(QVector<TrackPoint> &data)
+void Parser::routepointData()
 {
-	QXmlStreamAttributes attr;
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "name")
+			handleRoutepointData(Name, _reader.readElementText());
+		else if (_reader.name() == "desc")
+			handleRoutepointData(Description, _reader.readElementText());
+		else if (_reader.name() == "ele")
+			handleRoutepointData(Elevation, _reader.readElementText());
+		else if (_reader.name() == "geoidheight")
+			handleRoutepointData(Geoidheight, _reader.readElementText());
+		else if (_reader.name() == "time")
+			handleRoutepointData(Time, _reader.readElementText());
+		else
+			_reader.skipCurrentElement();
+	}
+}
 
+void Parser::trackpoints()
+{
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "trkpt") {
-			attr = _reader.attributes();
-			data.append(TrackPoint());
-			handleTrekPointAttributes(data, attr);
-			trekPointData(data);
+			_track->append(Trackpoint());
+			handleTrackpointAttributes(_reader.attributes());
+			trackpointData();
 		} else
 			_reader.skipCurrentElement();
 	}
 }
 
-void Parser::trek(QVector<TrackPoint> &data)
+void Parser::routepoints()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "rtept") {
+			_route->append(Waypoint());
+			handleRoutepointAttributes(_reader.attributes());
+			routepointData();
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+void Parser::track()
 {
 	while (_reader.readNextStartElement()) {
 		if (_reader.name() == "trkseg") {
-			trekPoints(data);
+			trackpoints();
 		} else
 			_reader.skipCurrentElement();
 	}
 }
 
-void Parser::gpx(QVector<TrackPoint> &data)
+void Parser::waypointData()
 {
 	while (_reader.readNextStartElement()) {
-		if (_reader.name() == "trk")
-			trek(data);
+		if (_reader.name() == "name")
+			handleWaypointData(Name, _reader.readElementText());
+		else if (_reader.name() == "desc")
+			handleWaypointData(Description, _reader.readElementText());
+		else if (_reader.name() == "ele")
+			handleWaypointData(Elevation, _reader.readElementText());
+		else if (_reader.name() == "geoidheight")
+			handleWaypointData(Geoidheight, _reader.readElementText());
+		else if (_reader.name() == "time")
+			handleWaypointData(Time, _reader.readElementText());
 		else
 			_reader.skipCurrentElement();
 	}
 }
 
-bool Parser::parse(QVector<TrackPoint> &data)
+void Parser::gpx()
+{
+	while (_reader.readNextStartElement()) {
+		if (_reader.name() == "trk") {
+			_tracks.append(QVector<Trackpoint>());
+			_track = &_tracks.back();
+			track();
+		} else if (_reader.name() == "rte") {
+			_routes.append(QVector<Waypoint>());
+			_route = &_routes.back();
+			routepoints();
+		} else if (_reader.name() == "wpt") {
+			_waypoints.append(Waypoint());
+			handleWaypointAttributes(_reader.attributes());
+			waypointData();
+		} else
+			_reader.skipCurrentElement();
+	}
+}
+
+bool Parser::parse()
 {
 	if (_reader.readNextStartElement()) {
 		if (_reader.name() == "gpx")
-			gpx(data);
+			gpx();
 		else
 			_reader.raiseError("Not a GPX file.");
 	}
@@ -98,10 +243,10 @@ bool Parser::parse(QVector<TrackPoint> &data)
 	return !_reader.error();
 }
 
-bool Parser::loadFile(QIODevice *device, QVector<TrackPoint> &data)
+bool Parser::loadFile(QIODevice *device)
 {
 	_reader.clear();
 	_reader.setDevice(device);
 
-	return parse(data);
+	return parse();
 }

src/parser.h

@@ -2,43 +2,54 @@
 #define PARSER_H
 
 #include <QXmlStreamReader>
-#include <QDateTime>
-#include <QPointF>
+#include <QVector>
+#include <QList>
+#include "trackpoint.h"
+#include "waypoint.h"
 
-struct TrackPoint
-{
-	QPointF coordinates;
-	QDateTime timestamp;
-	qreal elevation;
-	qreal geoidheight;
-	qreal speed;
-
-	TrackPoint() {elevation = 0; geoidheight = 0; speed = -1;}
-};
 
 class Parser
 {
 public:
-	bool loadFile(QIODevice *device, QVector<TrackPoint> &data);
+	Parser(QList<QVector<Trackpoint> > &tracks,
+	  QList<QVector<Waypoint> > &routes, QList<Waypoint> &waypoints)
+	  : _tracks(tracks), _routes(routes), _waypoints(waypoints)
+	  {_track = 0; _route = 0;}
+
+	bool loadFile(QIODevice *device);
 	QString errorString() const {return _reader.errorString();}
 	int errorLine() const {return _reader.lineNumber();}
 
 private:
-	bool parse(QVector<TrackPoint> &data);
-	void gpx(QVector<TrackPoint> &data);
-	void trek(QVector<TrackPoint> &data);
-	void trekPoints(QVector<TrackPoint> &data);
-	void extensions(QVector<TrackPoint> &data);
-	void trekPointData(QVector<TrackPoint> &data);
+	enum DataType {
+		Name, Description, Elevation, Time, Geoidheight, Speed, HeartRate,
+		Temperature
+	};
 
-	void handleTrekPointAttributes(QVector<TrackPoint> &data,
-	  const QXmlStreamAttributes &attr);
-	void handleTrekPointData(QVector<TrackPoint> &data, QStringRef element,
-	  const QString &value);
-	void handleExtensionData(QVector<TrackPoint> &data, QStringRef element,
-	  const QString &value);
+	bool parse();
+	void gpx();
+	void track();
+	void trackpoints();
+	void routepoints();
+	void tpExtension();
+	void extensions();
+	void trackpointData();
+	void routepointData();
+	void waypointData();
+
+	void handleWaypointAttributes(const QXmlStreamAttributes &attr);
+	void handleWaypointData(DataType type, const QString &value);
+	void handleTrackpointAttributes(const QXmlStreamAttributes &attr);
+	void handleTrackpointData(DataType type, const QString &value);
+	void handleRoutepointAttributes(const QXmlStreamAttributes &attr);
+	void handleRoutepointData(DataType type, const QString &value);
 
 	QXmlStreamReader _reader;
+	QList<QVector<Trackpoint> > &_tracks;
+	QList<QVector<Waypoint> > &_routes;
+	QList<Waypoint> &_waypoints;
+	QVector<Trackpoint> *_track;
+	QVector<Waypoint> *_route;
 };
 
 #endif // PARSER_H

src/pathitem.cpp

@@ -0,0 +1,104 @@
+#include <QApplication>
+#include <QCursor>
+#include <QPainter>
+#include "tooltip.h"
+#include "pathitem.h"
+
+
+#define PATH_WIDTH  3
+#define HOVER_WIDTH 4
+
+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);
+}
+
+PathItem::PathItem(QGraphicsItem *parent) : QGraphicsObject(parent)
+{
+	QBrush brush(Qt::SolidPattern);
+	_pen = QPen(brush, PATH_WIDTH);
+
+	_units = Metric;
+
+	_marker = new MarkerItem(this);
+
+	setCursor(Qt::ArrowCursor);
+	setAcceptHoverEvents(true);
+}
+
+void PathItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+
+	painter->setPen(_pen);
+	painter->drawPath(_path);
+
+/*
+	QPen p = QPen(QBrush(Qt::red), 0);
+	painter->setPen(p);
+	painter->drawRect(boundingRect());
+*/
+}
+
+void PathItem::setScale(qreal scale)
+{
+	prepareGeometryChange();
+
+	_pen.setWidthF(PATH_WIDTH * 1.0/scale);
+	QGraphicsItem::setScale(scale);
+	_marker->setScale(1.0/scale);
+
+	updateShape();
+}
+
+void PathItem::setColor(const QColor &color)
+{
+	_pen.setColor(color);
+	update();
+}
+
+void PathItem::setUnits(enum Units units)
+{
+	_units = units;
+}
+
+void PathItem::moveMarker(qreal distance)
+{
+	if (distance > _distance)
+		_marker->setVisible(false);
+	else {
+		_marker->setVisible(true);
+		_marker->setPos(_path.pointAtPercent(distance / _distance));
+	}
+}
+
+void PathItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
+{
+	Q_UNUSED(event);
+
+	_pen.setWidthF(HOVER_WIDTH * 1.0/scale());
+	setZValue(zValue() + 1.0);
+	update();
+
+	emit selected(true);
+}
+
+void PathItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
+{
+	Q_UNUSED(event);
+
+	_pen.setWidthF(PATH_WIDTH * 1.0/scale());
+	setZValue(zValue() - 1.0);
+	update();
+
+	emit selected(false);
+}

src/pathitem.h

@@ -0,0 +1,51 @@
+#ifndef PATHITEM_H
+#define PATHITEM_H
+
+#include <QGraphicsObject>
+#include <QPen>
+#include "markeritem.h"
+#include "units.h"
+
+
+class PathItem : public QGraphicsObject
+{
+	Q_OBJECT
+
+public:
+	PathItem(QGraphicsItem *parent = 0);
+
+	QPainterPath shape() const {return _shape;}
+	QRectF boundingRect() const {return _shape.boundingRect();}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	const QPainterPath &path() const {return _path;}
+	void showMarker(bool show) {_marker->setVisible(show);}
+	void setScale(qreal scale);
+	void setUnits(enum Units units);
+	void setColor(const QColor &color);
+
+public slots:
+	void moveMarker(qreal distance);
+
+signals:
+	void selected(bool);
+
+protected:
+	void updateShape();
+
+	QPainterPath _path;
+	QPainterPath _shape;
+	QPen _pen;
+
+	MarkerItem *_marker;
+
+	Units _units;
+	qreal _distance;
+
+private:
+	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
+	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
+};
+
+#endif // PATHITEM_H

src/pathview.cpp

@@ -0,0 +1,619 @@
+#include <QGraphicsView>
+#include <QGraphicsScene>
+#include <QWheelEvent>
+#include "ll.h"
+#include "poi.h"
+#include "gpx.h"
+#include "map.h"
+#include "trackitem.h"
+#include "routeitem.h"
+#include "waypointitem.h"
+#include "scaleitem.h"
+#include "pathview.h"
+
+
+#define MARGIN          10.0
+#define SCALE_OFFSET    7
+
+PathView::PathView(QWidget *parent)
+	: QGraphicsView(parent)
+{
+	_scene = new QGraphicsScene(this);
+	setScene(_scene);
+	setCacheMode(QGraphicsView::CacheBackground);
+	setDragMode(QGraphicsView::ScrollHandDrag);
+	setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+	setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+	setRenderHints(QPainter::Antialiasing);
+
+	_mapScale = new ScaleItem();
+	_mapScale->setZValue(2.0);
+
+	_zoom = ZOOM_MAX;
+	_scale = mapScale(_zoom);
+	_map = 0;
+
+	_units = Metric;
+
+	_showTracks = true;
+	_showRoutes = true;
+	_showWaypoints = true;
+	_showWaypointLabels = true;
+	_showPOILabels = true;
+	_overlapPOIs = true;
+	_showRouteWaypoints = true;
+
+	_plot = false;
+}
+
+PathView::~PathView()
+{
+	if (_mapScale->scene() != _scene)
+		delete _mapScale;
+}
+
+PathItem *PathView::addTrack(const Track &track)
+{
+	if (track.isNull()) {
+		_palette.color();
+		return 0;
+	}
+
+	TrackItem *ti = new TrackItem(track);
+	_tracks.append(ti);
+	_zoom = qMin(_zoom, scale2zoom(trackScale()));
+	_scale = mapScale(_zoom);
+	ti->setScale(1.0/_scale);
+	ti->setColor(_palette.color());
+	ti->setVisible(_showTracks);
+	_scene->addItem(ti);
+
+	return ti;
+}
+
+PathItem *PathView::addRoute(const Route &route)
+{
+	if (route.isNull()) {
+		_palette.color();
+		return 0;
+	}
+
+	RouteItem *ri = new RouteItem(route);
+	_routes.append(ri);
+	_zoom = qMin(_zoom, scale2zoom(routeScale()));
+	_scale = mapScale(_zoom);
+	ri->setScale(1.0/_scale);
+	ri->setColor(_palette.color());
+	ri->setVisible(_showRoutes);
+	ri->showWaypoints(_showRouteWaypoints);
+	ri->showWaypointLabels(_showWaypointLabels);
+	_scene->addItem(ri);
+
+	return ri;
+}
+
+void PathView::addWaypoints(const QList<Waypoint> &waypoints)
+{
+	for (int i = 0; i < waypoints.count(); i++) {
+		const Waypoint &w = waypoints.at(i);
+
+		WaypointItem *wi = new WaypointItem(w);
+		wi->setScale(1.0/_scale);
+		wi->setZValue(1);
+		wi->showLabel(_showWaypointLabels);
+		wi->setVisible(_showWaypoints);
+		_scene->addItem(wi);
+
+		_waypoints.append(wi);
+	}
+
+	_zoom = qMin(_zoom, scale2zoom(waypointScale()));
+	_scale = mapScale(_zoom);
+}
+
+QList<PathItem *> PathView::loadGPX(const GPX &gpx)
+{
+	QList<PathItem *> paths;
+	int zoom = _zoom;
+
+
+	for (int i = 0; i < gpx.tracks().count(); i++)
+		paths.append(addTrack(*(gpx.tracks().at(i))));
+	for (int i = 0; i < gpx.routes().count(); i++)
+		paths.append(addRoute(*(gpx.routes().at(i))));
+	addWaypoints(gpx.waypoints());
+
+	if (_tracks.empty() && _routes.empty() && _waypoints.empty())
+		return paths;
+
+	if ((_tracks.size() + _routes.size() > 1 && _zoom < zoom)
+	  || (_waypoints.size() && _zoom < zoom))
+		rescale(_scale);
+
+	QRectF br = trackBoundingRect() | routeBoundingRect()
+	  | waypointBoundingRect();
+	QRectF ba = br.adjusted(-TILE_SIZE, -TILE_SIZE, TILE_SIZE, TILE_SIZE);
+	_scene->setSceneRect(ba);
+	centerOn(ba.center());
+
+	_mapScale->setZoom(_zoom, -(br.center().ry() * _scale));
+	if (_mapScale->scene() != _scene)
+		_scene->addItem(_mapScale);
+
+	return paths;
+}
+
+QRectF PathView::trackBoundingRect() const
+{
+	if (_tracks.empty())
+		return QRectF();
+
+	QRectF br = _tracks.at(0)->sceneBoundingRect();
+	for (int i = 1; i < _tracks.size(); i++)
+		br |= _tracks.at(i)->sceneBoundingRect();
+
+	return br;
+}
+
+QRectF PathView::routeBoundingRect() const
+{
+	if (_routes.empty())
+		return QRectF();
+
+	QRectF br = _routes.at(0)->sceneBoundingRect();
+	for (int i = 1; i < _routes.size(); i++)
+		br |= _routes.at(i)->sceneBoundingRect();
+
+	return br;
+}
+
+QRectF PathView::waypointBoundingRect() const
+{
+	qreal bottom, top, left, right;
+
+	if (_waypoints.empty())
+		return QRectF();
+
+	const QPointF &p = _waypoints.at(0)->pos();
+	bottom = p.y();
+	top = p.y();
+	left = p.x();
+	right = p.x();
+
+	for (int i = 1; i < _waypoints.size(); i++) {
+		const QPointF &p = _waypoints.at(i)->pos();
+		bottom = qMax(bottom, p.y());
+		top = qMin(top, p.y());
+		right = qMax(right, p.x());
+		left = qMin(left, p.x());
+	}
+
+	return QRectF(QPointF(left, top), QPointF(right, bottom));
+}
+
+qreal PathView::trackScale() const
+{
+	if (_tracks.empty())
+		return mapScale(ZOOM_MAX);
+
+	QRectF br = _tracks.at(0)->path().boundingRect();
+
+	for (int i = 1; i < _tracks.size(); i++)
+		br |= _tracks.at(i)->path().boundingRect();
+
+	QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
+	  br.height() / (viewport()->height() - MARGIN/2));
+
+	return qMax(sc.x(), sc.y());
+}
+
+qreal PathView::routeScale() const
+{
+	if (_routes.empty())
+		return mapScale(ZOOM_MAX);
+
+	QRectF br = _routes.at(0)->path().boundingRect();
+
+	for (int i = 1; i < _routes.size(); i++)
+		br |= _routes.at(i)->path().boundingRect();
+
+	QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
+	  br.height() / (viewport()->height() - MARGIN/2));
+
+	return qMax(sc.x(), sc.y());
+}
+
+qreal PathView::waypointScale() const
+{
+	qreal bottom, top, left, right;
+
+	if (_waypoints.size() < 2)
+		return mapScale(ZOOM_MAX);
+
+	const QPointF &p = _waypoints.at(0)->coordinates();
+	bottom = p.y();
+	top = p.y();
+	left = p.x();
+	right = p.x();
+
+	for (int i = 1; i < _waypoints.size(); i++) {
+		const QPointF &p = _waypoints.at(i)->coordinates();
+		bottom = qMax(bottom, p.y());
+		top = qMin(top, p.y());
+		right = qMax(right, p.x());
+		left = qMin(left, p.x());
+	}
+
+	QRectF br(QPointF(left, top), QPointF(right, bottom));
+	QPointF sc(br.width() / (viewport()->width() - MARGIN/2),
+	  br.height() / (viewport()->height() - MARGIN/2));
+
+	return qMax(sc.x(), sc.y());
+}
+
+qreal PathView::mapScale(int zoom) const
+{
+	return ((360.0/(qreal)(1<<zoom))/(qreal)TILE_SIZE);
+}
+
+void PathView::checkPOIOverlap()
+{
+	QHash<Waypoint, WaypointItem*>::const_iterator it, jt;
+
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++) {
+		for (jt = _pois.constBegin(); jt != _pois.constEnd(); jt++) {
+			if (it != jt && it.value()->isVisible() && jt.value()->isVisible()
+			  && it.value()->collidesWithItem(jt.value()))
+				jt.value()->hide();
+		}
+	}
+}
+
+void PathView::rescale(qreal scale)
+{
+	for (int i = 0; i < _tracks.size(); i++)
+		_tracks.at(i)->setScale(1.0/scale);
+
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->setScale(1.0/scale);
+
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->setScale(1.0/scale);
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++) {
+		it.value()->setScale(1.0/scale);
+		it.value()->show();
+	}
+
+	if (!_overlapPOIs)
+		checkPOIOverlap();
+
+	_scale = scale;
+}
+
+void PathView::addPOI(const QVector<Waypoint> &waypoints)
+{
+	for (int i = 0; i < waypoints.size(); i++) {
+		const Waypoint &w = waypoints.at(i);
+
+		if (_pois.contains(w))
+			continue;
+
+		WaypointItem *pi = new WaypointItem(w);
+		pi->setScale(1.0/_scale);
+		pi->setZValue(1);
+		pi->showLabel(_showPOILabels);
+		_scene->addItem(pi);
+
+		_pois.insert(w, pi);
+	}
+}
+
+void PathView::loadPOI(const POI &poi)
+{
+	if (!_tracks.size() && !_routes.size() && !_waypoints.size())
+		return;
+
+	for (int i = 0; i < _tracks.size(); i++)
+		addPOI(poi.points(_tracks.at(i)->path()));
+	for (int i = 0; i < _routes.size(); i++)
+		addPOI(poi.points(_routes.at(i)->path()));
+	addPOI(poi.points(_waypoints));
+
+	if (!_overlapPOIs)
+		checkPOIOverlap();
+}
+
+void PathView::setMap(Map *map)
+{
+	_map = map;
+	if (_map)
+		connect(_map, SIGNAL(loaded()), this, SLOT(redraw()),
+		  Qt::UniqueConnection);
+	resetCachedContent();
+}
+
+void PathView::setUnits(enum Units units)
+{
+	_units = units;
+
+	_mapScale->setUnits(units);
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks[i]->setUnits(units);
+	for (int i = 0; i < _routes.count(); i++)
+		_routes[i]->setUnits(units);
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->setUnits(units);
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->setUnits(units);
+}
+
+void PathView::redraw()
+{
+	resetCachedContent();
+}
+
+void PathView::rescale()
+{
+	_zoom = qMin(qMin(scale2zoom(trackScale()), scale2zoom(routeScale())),
+	  scale2zoom(waypointScale()));
+
+	rescale(mapScale(_zoom));
+	_mapScale->setZoom(_zoom);
+}
+
+void PathView::zoom(int z, const QPointF &pos)
+{
+	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+		return;
+
+	qreal scale = _scale;
+	_zoom = z;
+
+	rescale(mapScale(_zoom));
+	QRectF br = trackBoundingRect() | routeBoundingRect()
+	  | waypointBoundingRect();
+	QRectF ba = br.adjusted(-TILE_SIZE, -TILE_SIZE, TILE_SIZE, TILE_SIZE);
+	_scene->setSceneRect(ba);
+
+	if (br.width() < viewport()->size().width()
+	  && br.height() < viewport()->size().height())
+		centerOn(br.center());
+	else
+		centerOn(pos * scale/_scale);
+
+	_mapScale->setZoom(_zoom);
+
+	resetCachedContent();
+}
+
+void PathView::wheelEvent(QWheelEvent *event)
+{
+	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+		return;
+
+	QPointF pos = mapToScene(event->pos());
+	int z = (event->delta() > 0) ?
+		qMin(_zoom + 1, ZOOM_MAX) : qMax(_zoom - 1, ZOOM_MIN);
+
+	zoom(z, pos);
+}
+
+void PathView::keyPressEvent(QKeyEvent *event)
+{
+	int z = -1;
+
+	if (event->matches(QKeySequence::ZoomIn))
+		z = qMin(_zoom + 1, ZOOM_MAX);
+	if (event->matches(QKeySequence::ZoomOut))
+		z = qMax(_zoom - 1, ZOOM_MIN);
+
+	if (z >= 0)
+		zoom(z, mapToScene(QRect(QPoint(), size()).center()));
+	else
+		QWidget::keyPressEvent(event);
+}
+
+void PathView::plot(QPainter *painter, const QRectF &target)
+{
+	QRect orig, adj;
+	qreal ratio, diff;
+
+
+	orig = viewport()->rect();
+
+	if (orig.height() * (target.width() / target.height()) - orig.width() < 0) {
+		ratio = target.height()/target.width();
+		diff = (orig.width() * ratio) - orig.height();
+		adj = orig.adjusted(0, -diff/2, 0, diff/2);
+	} else {
+		ratio = target.width() / target.height();
+		diff = (orig.height() * ratio) - orig.width();
+		adj = orig.adjusted(-diff/2, 0, diff/2, 0);
+	}
+
+	setUpdatesEnabled(false);
+	_plot = true;
+
+	QPointF pos = _mapScale->pos();
+	_mapScale->setPos(mapToScene(QPoint(adj.bottomRight() + QPoint(
+	  -(SCALE_OFFSET + _mapScale->boundingRect().width()),
+	  -(SCALE_OFFSET + _mapScale->boundingRect().height())))));
+
+	render(painter, target, adj);
+
+	_mapScale->setPos(pos);
+
+	_plot = false;
+	setUpdatesEnabled(true);
+}
+
+void PathView::clearPOI()
+{
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++) {
+		_scene->removeItem(it.value());
+		delete it.value();
+	}
+
+	_pois.clear();
+}
+
+void PathView::clear()
+{
+	if (_mapScale->scene() == _scene)
+		_scene->removeItem(_mapScale);
+
+	_pois.clear();
+	_tracks.clear();
+	_routes.clear();
+	_waypoints.clear();
+	_scene->clear();
+	_palette.reset();
+
+	_zoom = ZOOM_MAX;
+	_scale = mapScale(_zoom);
+
+	_scene->setSceneRect(QRectF());
+}
+
+void PathView::showTracks(bool show)
+{
+	_showTracks = show;
+
+	for (int i = 0; i < _tracks.count(); i++)
+		_tracks.at(i)->setVisible(show);
+}
+
+void PathView::showRoutes(bool show)
+{
+	_showRoutes = show;
+
+	for (int i = 0; i < _routes.count(); i++)
+		_routes.at(i)->setVisible(show);
+}
+
+void PathView::showWaypoints(bool show)
+{
+	_showWaypoints = show;
+
+	for (int i = 0; i < _waypoints.count(); i++)
+		_waypoints.at(i)->setVisible(show);
+}
+
+void PathView::showWaypointLabels(bool show)
+{
+	_showWaypointLabels = show;
+
+	for (int i = 0; i < _waypoints.size(); i++)
+		_waypoints.at(i)->showLabel(show);
+
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->showWaypointLabels(show);
+}
+
+void PathView::showRouteWaypoints(bool show)
+{
+	_showRouteWaypoints = show;
+
+	for (int i = 0; i < _routes.size(); i++)
+		_routes.at(i)->showWaypoints(show);
+}
+
+void PathView::showPOILabels(bool show)
+{
+	_showPOILabels = show;
+
+	QHash<Waypoint, WaypointItem*>::const_iterator it;
+	for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+		it.value()->showLabel(show);
+
+	setPOIOverlap(_overlapPOIs);
+}
+
+void PathView::setPOIOverlap(bool overlap)
+{
+	_overlapPOIs = overlap;
+
+	if (_overlapPOIs) {
+		QHash<Waypoint, WaypointItem*>::const_iterator it;
+		for (it = _pois.constBegin(); it != _pois.constEnd(); it++)
+			it.value()->show();
+	} else
+		checkPOIOverlap();
+}
+
+void PathView::drawBackground(QPainter *painter, const QRectF &rect)
+{
+	if ((_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+	  || !_map) {
+		painter->fillRect(rect, Qt::white);
+		return;
+	}
+
+	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 *e)
+{
+	if (_tracks.isEmpty() && _routes.isEmpty() && _waypoints.isEmpty())
+		return;
+
+	rescale();
+
+	QRectF br = trackBoundingRect() | routeBoundingRect()
+	  | waypointBoundingRect();
+	QRectF ba = br.adjusted(-TILE_SIZE, -TILE_SIZE, TILE_SIZE, TILE_SIZE);
+
+	if (ba.width() < e->size().width()) {
+		qreal diff = e->size().width() - ba.width();
+		ba.adjust(-diff/2, 0, diff/2, 0);
+	}
+	if (ba.height() < e->size().height()) {
+		qreal diff = e->size().height() - ba.height();
+		ba.adjust(0, -diff/2, 0, diff/2);
+	}
+
+	_scene->setSceneRect(ba);
+
+	centerOn(br.center());
+	resetCachedContent();
+}
+
+void PathView::paintEvent(QPaintEvent *e)
+{
+	QPointF scenePos = mapToScene(rect().bottomRight() + QPoint(
+	  -(SCALE_OFFSET + _mapScale->boundingRect().width()),
+	  -(SCALE_OFFSET + _mapScale->boundingRect().height())));
+	if (_mapScale->pos() != scenePos && !_plot)
+		_mapScale->setPos(scenePos);
+
+	QGraphicsView::paintEvent(e);
+}

src/pathview.h

@@ -0,0 +1,108 @@
+#ifndef TRACKVIEW_H
+#define TRACKVIEW_H
+
+#include <QGraphicsView>
+#include <QVector>
+#include <QHash>
+#include <QList>
+#include "units.h"
+#include "palette.h"
+#include "waypoint.h"
+
+class GPX;
+class POI;
+class Map;
+class Track;
+class Route;
+class TrackItem;
+class RouteItem;
+class WaypointItem;
+class ScaleItem;
+class PathItem;
+
+class PathView : public QGraphicsView
+{
+	Q_OBJECT
+
+public:
+	PathView(QWidget *parent = 0);
+	~PathView();
+
+	QList<PathItem*> loadGPX(const GPX &gpx);
+
+	void loadPOI(const POI &poi);
+	void clearPOI();
+	void clear();
+
+	void setMap(Map *map);
+	void setUnits(enum Units units);
+
+	void plot(QPainter *painter, const QRectF &target);
+
+	int trackCount() const {return _tracks.count();}
+	int routeCount() const {return _routes.count();}
+	int waypointCount() const {return _waypoints.count();}
+
+public slots:
+	void redraw();
+
+	void setPOIOverlap(bool overlap);
+	void showWaypointLabels(bool show);
+	void showPOILabels(bool show);
+	void showTracks(bool show);
+	void showRoutes(bool show);
+	void showWaypoints(bool show);
+	void showRouteWaypoints(bool show);
+
+private:
+	PathItem *addTrack(const Track &track);
+	PathItem *addRoute(const Route &route);
+	void addWaypoints(const QList<Waypoint> &waypoints);
+	void addPOI(const QVector<Waypoint> &waypoints);
+
+	QRectF trackBoundingRect() const;
+	QRectF routeBoundingRect() const;
+	QRectF waypointBoundingRect() const;
+	qreal trackScale() const;
+	qreal routeScale() const;
+	qreal waypointScale() const;
+	qreal mapScale(int zoom) const;
+	void rescale(qreal scale);
+	void rescale();
+	void zoom(int z, const QPointF &pos);
+	void checkPOIOverlap();
+
+	void wheelEvent(QWheelEvent *event);
+	void keyPressEvent(QKeyEvent *event);
+	void drawBackground(QPainter *painter, const QRectF &rect);
+	void resizeEvent(QResizeEvent *e);
+	void paintEvent(QPaintEvent *e);
+
+	QGraphicsScene *_scene;
+	QList<TrackItem*> _tracks;
+	QList<RouteItem*> _routes;
+	QList<WaypointItem*> _waypoints;
+	QHash<Waypoint, WaypointItem*> _pois;
+
+	Map *_map;
+	ScaleItem *_mapScale;
+
+	Palette _palette;
+
+	qreal _scale;
+	int _zoom;
+
+	Units _units;
+
+	bool _showTracks;
+	bool _showRoutes;
+	bool _showWaypoints;
+	bool _showWaypointLabels;
+	bool _showPOILabels;
+	bool _overlapPOIs;
+	bool _showRouteWaypoints;
+
+	bool _plot;
+};
+
+#endif // TRACKVIEW_H

src/poi.cpp

@@ -1,21 +1,86 @@
 #include <QFile>
 #include <QSet>
 #include <QList>
+#include <QPainterPath>
+#include "waypointitem.h"
 #include "ll.h"
+#include "gpx.h"
 #include "poi.h"
 
 
-#define BOUNDING_RECT_SIZE 0.01
-
 bool POI::loadFile(const QString &fileName)
 {
-	QFile file(fileName);
-	bool ret;
-	int ln = 1, cnt = _data.size();
+	QString error;
+	int errorLine;
 
 	_error.clear();
 	_errorLine = 0;
 
+
+	if (loadCSVFile(fileName))
+		return true;
+	else {
+		error = _error;
+		errorLine = _errorLine;
+	}
+	if (loadGPXFile(fileName))
+		return true;
+
+	fprintf(stderr, "Error loading POI file: %s:\n", qPrintable(fileName));
+	fprintf(stderr, "CSV: line %d: %s\n", errorLine, qPrintable(error));
+	fprintf(stderr, "GPX: line %d: %s\n", _errorLine, qPrintable(_error));
+
+	if (errorLine > _errorLine) {
+		_errorLine = errorLine;
+		_error = error;
+	}
+
+	return false;
+}
+
+bool POI::loadGPXFile(const QString &fileName)
+{
+	GPX gpx;
+	FileIndex index;
+
+	index.enabled = true;
+	index.start = _data.size();
+
+	if (gpx.loadFile(fileName)) {
+		for (int i = 0; i < gpx.waypoints().size(); i++)
+			_data.append(gpx.waypoints().at(i));
+		index.end = _data.size() - 1;
+
+		for (int i = index.start; i <= index.end; i++) {
+			const QPointF &p = _data.at(i).coordinates();
+			qreal c[2];
+			c[0] = p.x();
+			c[1] = p.y();
+			_tree.Insert(c, c, i);
+		}
+
+		_files.append(fileName);
+		_indexes.append(index);
+
+		return true;
+	} else {
+		_error = gpx.errorString();
+		_errorLine = gpx.errorLine();
+	}
+
+	return false;
+}
+
+bool POI::loadCSVFile(const QString &fileName)
+{
+	QFile file(fileName);
+	FileIndex index;
+	bool ret;
+	int ln = 1;
+
+	index.enabled = true;
+	index.start = _data.size();
+
 	if (!file.open(QFile::ReadOnly | QFile::Text)) {
 		_error = qPrintable(file.errorString());
 		return false;
@@ -42,23 +107,33 @@ bool POI::loadFile(const QString &fileName)
 			_errorLine = ln;
 			return false;
 		}
+		Waypoint wp(QPointF(lon, lat));
+
 		QByteArray ba = list[2].trimmed();
+		QString name = QString::fromUtf8(ba.data(), ba.size());
+		wp.setName(name);
 
-		Entry entry;
-		entry.description = QString::fromUtf8(ba.data(), ba.size());
-		entry.coordinates = ll2mercator(QPointF(lon, lat));
+		if (list.size() > 3) {
+			ba = list[3].trimmed();
+			wp.setDescription(QString::fromUtf8(ba.data(), ba.size()));
+		}
 
-		_data.append(entry);
+		_data.append(wp);
 		ln++;
 	}
+	index.end = _data.size() - 1;
 
-	for (int i = cnt; i < _data.size(); ++i) {
+	for (int i = index.start; i <= index.end; i++) {
+		const QPointF &p = _data.at(i).coordinates();
 		qreal c[2];
-		c[0] = _data.at(i).coordinates.x();
-		c[1] = _data.at(i).coordinates.y();
+		c[0] = p.x();
+		c[1] = p.y();
 		_tree.Insert(c, c, i);
 	}
 
+	_files.append(fileName);
+	_indexes.append(index);
+
 	return true;
 }
 
@@ -70,17 +145,18 @@ static bool cb(size_t data, void* context)
 	return true;
 }
 
-QVector<Entry> POI::points(const QVector<QPointF> &path) const
+QVector<Waypoint> POI::points(const QPainterPath &path, qreal radius) const
 {
-	QVector<Entry> ret;
+	QVector<Waypoint> ret;
 	QSet<int> set;
 	qreal min[2], max[2];
 
-	for (int i = 0; i < path.count(); i++) {
-		min[0] = path.at(i).x() - BOUNDING_RECT_SIZE;
-		min[1] = path.at(i).y() - BOUNDING_RECT_SIZE;
-		max[0] = path.at(i).x() + BOUNDING_RECT_SIZE;
-		max[1] = path.at(i).y() + BOUNDING_RECT_SIZE;
+	for (int i = 0; i < path.elementCount(); i++) {
+		QPointF p = mercator2ll(path.elementAt(i));
+		min[0] = p.x() - radius;
+		min[1] = -p.y() - radius;
+		max[0] = p.x() + radius;
+		max[1] = -p.y() + radius;
 		_tree.Search(min, max, cb, &set);
 	}
 
@@ -93,8 +169,59 @@ QVector<Entry> POI::points(const QVector<QPointF> &path) const
 	return ret;
 }
 
+QVector<Waypoint> POI::points(const QList<WaypointItem*> &list, qreal radius)
+  const
+{
+	QVector<Waypoint> ret;
+	QSet<int> set;
+	qreal min[2], max[2];
+
+	for (int i = 0; i < list.count(); i++) {
+		const QPointF &p = list.at(i)->waypoint().coordinates();
+		min[0] = p.x() - radius;
+		min[1] = p.y() - radius;
+		max[0] = p.x() + radius;
+		max[1] = p.y() + radius;
+		_tree.Search(min, max, cb, &set);
+	}
+
+	QSet<int>::const_iterator i = set.constBegin();
+	while (i != set.constEnd()) {
+		ret.append(_data.at(*i));
+		++i;
+	}
+
+	return ret;
+}
+
+void POI::enableFile(const QString &fileName, bool enable)
+{
+	int i;
+
+	i = _files.indexOf(fileName);
+	Q_ASSERT(i >= 0);
+	_indexes[i].enabled = enable;
+
+	_tree.RemoveAll();
+	for (int i = 0; i < _indexes.count(); i++) {
+		FileIndex idx = _indexes.at(i);
+		if (!idx.enabled)
+			continue;
+
+		for (int j = idx.start; j <= idx.end; j++) {
+			const QPointF &p = _data.at(j).coordinates();
+			qreal c[2];
+			c[0] = p.x();
+			c[1] = p.y();
+			_tree.Insert(c, c, j);
+		}
+	}
+}
+
 void POI::clear()
 {
 	_tree.RemoveAll();
 	_data.clear();
+	_files.clear();
+	_indexes.clear();
 }

src/poi.h

@@ -4,41 +4,48 @@
 #include <QVector>
 #include <QPointF>
 #include <QString>
+#include <QStringList>
+#include "waypoint.h"
 #include "rtree.h"
 
-class Entry
-{
-public:
-	QPointF coordinates;
-	QString description;
-
-	bool operator==(const Entry &other) const
-	  {return this->description == other.description
-	  && this->coordinates == other.coordinates;}
-};
-
-inline uint qHash(const Entry &key)
-{
-	return ::qHash(key.description);
-}
+class QPainterPath;
+class WaypointItem;
 
+#define POI_RADIUS 0.01
 
 class POI
 {
 public:
+	POI() : _errorLine(0) {}
 	bool loadFile(const QString &fileName);
-	QString errorString() const {return _error;}
+	const QString &errorString() const {return _error;}
 	int errorLine() const {return _errorLine;}
 
-	QVector<Entry> points(const QVector<QPointF> &path) const;
+	QVector<Waypoint> points(const QPainterPath &path,
+	  qreal radius = POI_RADIUS) const;
+	QVector<Waypoint> points(const QList<WaypointItem*> &list,
+	  qreal radius = POI_RADIUS) const;
 
+	const QStringList &files() const {return _files;}
+	void enableFile(const QString &fileName, bool enable);
 	void clear();
 
 private:
 	typedef RTree<size_t, qreal, 2> POITree;
+	typedef struct {
+		int start;
+		int end;
+		bool enabled;
+	} FileIndex;
+
+	bool loadCSVFile(const QString &fileName);
+	bool loadGPXFile(const QString &fileName);
 
 	POITree _tree;
-	QVector<Entry> _data;
+	QVector<Waypoint> _data;
+	QStringList _files;
+	QList<FileIndex> _indexes;
+
 	QString _error;
 	int _errorLine;
 };

src/poiitem.cpp

@@ -1,49 +0,0 @@
-#include <QPainter>
-#include "config.h"
-#include "poiitem.h"
-
-
-#define POINT_SIZE  8
-
-POIItem::POIItem(const Entry &entry, QGraphicsItem *parent)
-  : QGraphicsItem(parent)
-{
-	_entry = entry;
-	updateBoundingRect();
-}
-
-void POIItem::updateBoundingRect()
-{
-	QFont font;
-	font.setPixelSize(FONT_SIZE);
-	font.setFamily(FONT_FAMILY);
-	QFontMetrics fm(font);
-	QRect ts = fm.tightBoundingRect(_entry.description);
-
-	_boundingRect = QRectF(0, 0, ts.width() + POINT_SIZE,
-	  ts.height() + fm.descent() + POINT_SIZE);
-}
-
-void POIItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
-	  QWidget *widget)
-{
-	Q_UNUSED(option);
-	Q_UNUSED(widget);
-	QFont font;
-	font.setPixelSize(FONT_SIZE);
-	font.setFamily(FONT_FAMILY);
-	QFontMetrics fm(font);
-	QRect ts = fm.tightBoundingRect(_entry.description);
-
-	painter->setFont(font);
-	painter->drawText(POINT_SIZE - qMax(ts.x(), 0), POINT_SIZE + ts.height(),
-	  _entry.description);
-	painter->setBrush(Qt::SolidPattern);
-	painter->drawEllipse(0, 0, POINT_SIZE, POINT_SIZE);
-
-/*
-	painter->setPen(Qt::red);
-	painter->setBrush(Qt::NoBrush);
-	painter->drawRect(boundingRect());
-*/
-}

src/poiitem.h

@@ -1,24 +0,0 @@
-#ifndef POIITEM_H
-#define POIITEM_H
-
-#include <QGraphicsItem>
-#include "poi.h"
-
-class POIItem : public QGraphicsItem
-{
-public:
-	POIItem(const Entry &entry, QGraphicsItem *parent = 0);
-	const Entry &entry() const {return _entry;}
-
-	QRectF boundingRect() const {return _boundingRect;}
-	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
-	  QWidget *widget);
-
-private:
-	void updateBoundingRect();
-
-	Entry _entry;
-	QRectF _boundingRect;
-};
-
-#endif // POIITEM_H

src/range.cpp

@@ -0,0 +1,15 @@
+#include "range.h"
+
+void RangeF::resize(qreal size)
+{
+	qreal adj = (size/2 - this->size()/2);
+
+	_min -= adj;
+	_max += adj;
+}
+
+QDebug operator<<(QDebug dbg, const RangeF &range)
+{
+	dbg.nospace() << "RangeF(" << range.min() << ", " << range.max() << ")";
+	return dbg.maybeSpace();
+}

src/range.h

@@ -0,0 +1,25 @@
+#ifndef RANGE_H
+#define RANGE_H
+
+#include <QtGlobal>
+#include <QDebug>
+
+class RangeF
+{
+public:
+	RangeF() {_min = 0; _max = 0;}
+	RangeF(qreal min, qreal max) {_min = min, _max = max;}
+
+	qreal min() const {return _min;}
+	qreal max() const {return _max;}
+	qreal size() const {return (_max - _min);}
+
+	void resize(qreal size);
+
+private:
+	qreal _min, _max;
+};
+
+QDebug operator<<(QDebug dbg, const RangeF &range);
+
+#endif // RANGE_H

src/route.cpp

@@ -0,0 +1,30 @@
+#include "ll.h"
+#include "route.h"
+
+Route::Route(const QVector<Waypoint> &data) : _data(data)
+{
+	qreal dist = 0;
+
+	_distance.append(dist);
+	for (int i = 1; i < data.count(); i++) {
+		dist += llDistance(data.at(i).coordinates(), data.at(i-1).coordinates());
+		_distance.append(dist);
+	}
+}
+
+Graph Route::elevation() const
+{
+	Graph graph;
+
+	for (int i = 0; i < _data.size(); i++)
+		if (_data.at(i).hasElevation())
+			graph.append(GraphPoint(_distance.at(i), NAN,
+			  _data.at(i).elevation() - _data.at(i).geoidHeight()));
+
+	return graph;
+}
+
+qreal Route::distance() const
+{
+	return (_distance.isEmpty()) ? 0 : _distance.last();
+}

src/route.h

@@ -0,0 +1,25 @@
+#ifndef ROUTE_H
+#define ROUTE_H
+
+#include <QVector>
+#include "waypoint.h"
+#include "graph.h"
+
+class Route
+{
+public:
+	Route(const QVector<Waypoint> &data);
+
+	const QVector<Waypoint> &route() const {return _data;}
+	Graph elevation() const;
+
+	qreal distance() const;
+
+	bool isNull() const {return (_data.count() < 2);}
+
+private:
+	const QVector<Waypoint> &_data;
+	QVector<qreal> _distance;
+};
+
+#endif // ROUTE_H

src/routeitem.cpp

@@ -0,0 +1,79 @@
+#include <QApplication>
+#include <QPainter>
+#include "ll.h"
+#include "misc.h"
+#include "waypoint.h"
+#include "waypointitem.h"
+#include "tooltip.h"
+#include "routeitem.h"
+
+
+QString RouteItem::toolTip()
+{
+	ToolTip tt;
+
+	tt.insert(qApp->translate("RouteItem", "Distance"),
+	  ::distance(_distance, _units));
+
+	return tt.toString();
+}
+
+RouteItem::RouteItem(const Route &route, QGraphicsItem *parent)
+  : PathItem(parent)
+{
+	QVector<Waypoint> r = route.route();
+	Q_ASSERT(r.count() >= 2);
+
+	new WaypointItem(r.at(0), this);
+	const QPointF &p = r.at(0).coordinates();
+	_path.moveTo(ll2mercator(QPointF(p.x(), -p.y())));
+	for (int i = 1; i < r.size(); i++) {
+		const QPointF &p = r.at(i).coordinates();
+		_path.lineTo(ll2mercator(QPointF(p.x(), -p.y())));
+		new WaypointItem(r.at(i), this);
+	}
+
+	updateShape();
+
+	_distance = route.distance();
+
+	_marker->setPos(_path.pointAtPercent(0));
+
+	_pen.setStyle(Qt::DotLine);
+
+	setToolTip(toolTip());
+}
+
+void RouteItem::setScale(qreal scale)
+{
+	QList<QGraphicsItem *> childs =	childItems();
+	for (int i = 0; i < childs.count(); i++)
+		childs.at(i)->setScale(1.0/scale);
+
+	PathItem::setScale(scale);
+}
+
+void RouteItem::setUnits(enum Units units)
+{
+	PathItem::setUnits(units);
+	setToolTip(toolTip());
+}
+
+void RouteItem::showWaypoints(bool show)
+{
+	QList<QGraphicsItem *> childs =	childItems();
+	for (int i = 0; i < childs.count(); i++)
+		if (childs.at(i) != _marker)
+			childs.at(i)->setVisible(show);
+}
+
+void RouteItem::showWaypointLabels(bool show)
+{
+	QList<QGraphicsItem *> childs =	childItems();
+	for (int i = 0; i < childs.count(); i++) {
+		if (childs.at(i) != _marker) {
+			WaypointItem *wi = static_cast<WaypointItem*>(childs.at(i));
+			wi->showLabel(show);
+		}
+	}
+}

src/routeitem.h

@@ -0,0 +1,25 @@
+#ifndef ROUTEITEM_H
+#define ROUTEITEM_H
+
+#include "pathitem.h"
+#include "route.h"
+
+
+class RouteItem : public PathItem
+{
+	Q_OBJECT
+
+public:
+	RouteItem(const Route &route, QGraphicsItem *parent = 0);
+
+	void setUnits(enum Units units);
+	void setScale(qreal scale);
+
+	void showWaypoints(bool show);
+	void showWaypointLabels(bool show);
+
+private:
+	QString toolTip();
+};
+
+#endif // ROUTEITEM_H

src/scaleitem.cpp

@@ -0,0 +1,150 @@
+#include <QPainter>
+#include "config.h"
+#include "ll.h"
+#include "misc.h"
+#include "scaleitem.h"
+
+
+#define BORDER_WIDTH   1
+#define SCALE_WIDTH  132
+#define SCALE_HEIGHT 5
+#define SEGMENTS 3
+
+#define PADDING 4
+
+
+ScaleItem::ScaleItem(QGraphicsItem *parent) : QGraphicsItem(parent)
+{
+	_units = Metric;
+	_zoom = ZOOM_MIN;
+	_lat = 0;
+
+#ifndef Q_OS_MAC
+	setCacheMode(QGraphicsItem::DeviceCoordinateCache);
+#endif // Q_OS_MAC
+}
+
+void ScaleItem::updateBoundingRect()
+{
+	QFont font;
+	font.setPixelSize(FONT_SIZE);
+	font.setFamily(FONT_FAMILY);
+	QFontMetrics fm(font);
+	QRect ss, es, us;
+
+	ss = fm.tightBoundingRect(QString::number(0));
+	es = fm.tightBoundingRect(QString::number(_length * SEGMENTS));
+	us = fm.tightBoundingRect(units());
+
+	_boundingRect = QRectF(-ss.width()/2, 0, _width * SEGMENTS + ss.width()/2
+	  + qMax(us.width() + PADDING, es.width()/2) + 1, SCALE_HEIGHT + PADDING
+	  + ss.height() + 2*fm.descent());
+}
+
+void ScaleItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+  QWidget *widget)
+{
+	Q_UNUSED(option);
+	Q_UNUSED(widget);
+	QFont font;
+	font.setPixelSize(FONT_SIZE);
+	font.setFamily(FONT_FAMILY);
+	QFontMetrics fm(font);
+	QRect br;
+	QPen pen = QPen(Qt::black, BORDER_WIDTH);
+	bool aa;
+
+
+	if ((aa = painter->testRenderHint(QPainter::Antialiasing)))
+		painter->setRenderHint(QPainter::Antialiasing, false);
+
+	painter->setFont(font);
+	painter->setPen(pen);
+
+	for (int i = 0; i <= SEGMENTS; i++) {
+		QString label = QString::number(_length * i);
+		br = fm.tightBoundingRect(label);
+		painter->drawText(_width * i - br.width()/2, br.height(), label);
+	}
+	painter->drawText(_width * SEGMENTS + PADDING, SCALE_HEIGHT + PADDING
+	  + br.height() + fm.descent(), units());
+
+	painter->drawRect(QRectF(0, br.height() + PADDING, SEGMENTS * _width,
+	  SCALE_HEIGHT));
+	for (int i = 0; i < SEGMENTS; i += 2)
+		painter->fillRect(QRectF(i * _width, br.height() + PADDING, _width,
+		  SCALE_HEIGHT), Qt::black);
+
+/*
+	painter->setPen(Qt::red);
+	painter->drawRect(boundingRect());
+*/
+
+	if (aa)
+		painter->setRenderHint(QPainter::Antialiasing, true);
+}
+
+QString ScaleItem::units() const
+{
+	if (_units == Imperial)
+		return _scale ? qApp->translate("ScaleItem", "mi")
+		  : qApp->translate("ScaleItem", "ft");
+	else
+		return _scale ? qApp->translate("ScaleItem", "km")
+		  : qApp->translate("ScaleItem", "m");
+}
+
+void ScaleItem::computeScale()
+{
+	qreal res = zoom2resolution(_zoom, _lat);
+
+	if (_units == Imperial) {
+		_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));
+			_scale = true;
+		} else {
+			_width = (_length / (res * M2FT));
+			_scale = false;
+		}
+	} else {
+		_length = niceNum((res * SCALE_WIDTH) / SEGMENTS, 1);
+		if (_length >= KMINM) {
+			_length *= M2KM;
+			_width = (_length / (res * M2KM));
+			_scale = true;
+		} else {
+			_width = (_length / res);
+			_scale = false;
+		}
+	}
+}
+
+void ScaleItem::setZoom(int z, qreal lat)
+{
+	prepareGeometryChange();
+	_zoom = z;
+	_lat = lat;
+	computeScale();
+	updateBoundingRect();
+	update();
+}
+
+void ScaleItem::setZoom(int z)
+{
+	prepareGeometryChange();
+	_zoom = z;
+	computeScale();
+	updateBoundingRect();
+	update();
+}
+
+void ScaleItem::setUnits(enum Units units)
+{
+	prepareGeometryChange();
+	_units = units;
+	computeScale();
+	updateBoundingRect();
+	update();
+}

src/scaleitem.h

@@ -0,0 +1,35 @@
+#ifndef SCALEITEM_H
+#define SCALEITEM_H
+
+#include <QGraphicsItem>
+#include "units.h"
+
+class ScaleItem : public QGraphicsItem
+{
+public:
+	ScaleItem(QGraphicsItem *parent = 0);
+
+	QRectF boundingRect() const {return _boundingRect;}
+	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
+	  QWidget *widget);
+
+	void setZoom(int z);
+	void setZoom(int z, qreal lat);
+	void setUnits(enum Units units);
+
+private:
+	void updateBoundingRect();
+	void computeScale();
+	QString units() const;
+
+	int _zoom;
+	qreal _lat;
+	qreal _width;
+	qreal _length;
+	Units _units;
+	bool _scale;
+
+	QRectF _boundingRect;
+};
+
+#endif // SCALEITEM_H

src/settings.h

@@ -0,0 +1,34 @@
+#ifndef SETTINGS_H
+#define SETTINGS_H
+
+#define WINDOW_SETTINGS_GROUP             "Window"
+#define WINDOW_SIZE_SETTING               "size"
+#define WINDOW_POS_SETTING                "pos"
+
+#define SETTINGS_SETTINGS_GROUP           "Settings"
+#define UNITS_SETTING                     "units"
+#define SHOW_TOOLBARS_SETTING             "toolbar"
+
+#define GRAPH_SETTINGS_GROUP              "Graph"
+#define SHOW_GRAPHS_SETTING               "show"
+#define GRAPH_TYPE_SETTING                "type"
+
+#define MAP_SETTINGS_GROUP                "Map"
+#define CURRENT_MAP_SETTING               "map"
+#define SHOW_MAP_SETTING                  "show"
+
+#define POI_SETTINGS_GROUP                "POI"
+#define OVERLAP_POI_SETTING               "overlap"
+#define LABELS_POI_SETTING                "labels"
+#define SHOW_POI_SETTING                  "show"
+#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_ROUTES_SETTING               "routes"
+#define SHOW_WAYPOINTS_SETTING            "waypoints"
+#define SHOW_ROUTE_WAYPOINTS_SETTING      "routeWaypoints"
+#define SHOW_WAYPOINT_LABELS_SETTING      "waypointLabels"
+
+#endif // SETTINGS_H

src/sliderinfoitem.cpp

@@ -7,7 +7,7 @@
 
 SliderInfoItem::SliderInfoItem(QGraphicsItem *parent) : QGraphicsItem(parent)
 {
-
+	_side = Right;
 }
 
 void SliderInfoItem::updateBoundingRect()
@@ -17,7 +17,10 @@ void SliderInfoItem::updateBoundingRect()
 	font.setFamily(FONT_FAMILY);
 	QFontMetrics fm(font);
 
-	_boundingRect = QRectF(-SIZE/2, 0, fm.width(_text) + SIZE, fm.height());
+	_boundingRect = (_side == Right)
+		? QRectF(-SIZE/2, 0, fm.width(_text) + SIZE, fm.height())
+		: QRectF(-(fm.width(_text) + SIZE/2), 0, fm.width(_text) + SIZE,
+		  fm.height());
 }
 
 void SliderInfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem
@@ -32,7 +35,11 @@ void SliderInfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem
 	painter->setFont(font);
 
 	painter->setPen(Qt::red);
-	painter->drawText(SIZE, fm.height() - fm.descent(), _text);
+	if (_side == Right)
+		painter->drawText(SIZE, fm.height() - fm.descent(), _text);
+	else
+		painter->drawText(-(fm.width(_text) + SIZE/2),
+		  fm.height() - fm.descent(), _text);
 	painter->drawLine(QPointF(-SIZE/2, 0), QPointF(SIZE/2, 0));
 
 	//painter->drawRect(boundingRect());
@@ -40,7 +47,17 @@ void SliderInfoItem::paint(QPainter *painter, const QStyleOptionGraphicsItem
 
 void SliderInfoItem::setText(const QString &text)
 {
+	prepareGeometryChange();
 	_text = text;
 	updateBoundingRect();
-	prepareGeometryChange();
+}
+
+void SliderInfoItem::setSide(Side side)
+{
+	if (side == _side)
+		return;
+
+	prepareGeometryChange();
+	_side = side;
+	updateBoundingRect();
 }

src/sliderinfoitem.h

@@ -6,6 +6,8 @@
 class SliderInfoItem : public QGraphicsItem
 {
 public:
+	enum Side {Left, Right};
+
 	SliderInfoItem(QGraphicsItem *parent = 0);
 
 	QRectF boundingRect() const {return _boundingRect;}
@@ -13,10 +15,12 @@ public:
 	  QWidget *widget);
 
 	void setText(const QString &text);
+	void setSide(Side side);
 
 private:
 	void updateBoundingRect();
 
+	Side _side;
 	QString _text;
 	QRectF _boundingRect;
 };

src/slideritem.cpp

@@ -4,7 +4,7 @@
 
 #define SIZE        10
 
-SliderItem::SliderItem(QGraphicsObject *parent) : QGraphicsObject(parent)
+SliderItem::SliderItem(QGraphicsItem *parent) : QGraphicsObject(parent)
 {
 	setFlag(ItemIsMovable);
 	setFlag(ItemSendsGeometryChanges);
@@ -24,7 +24,7 @@ void SliderItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option
 	painter->setPen(Qt::red);
 	painter->drawLine(0, 0, 0, -_area.height());
 
-	//painter->drawRect(boundingRect());
+//	painter->drawRect(boundingRect());
 }
 
 QVariant SliderItem::itemChange(GraphicsItemChange change, const QVariant &value)
@@ -41,8 +41,20 @@ QVariant SliderItem::itemChange(GraphicsItemChange change, const QVariant &value
 		}
 	}
 
-	if (change == ItemPositionHasChanged)
+	if (change == ItemPositionHasChanged && scene())
 		emit positionChanged(value.toPointF());
 
 	return QGraphicsItem::itemChange(change, value);
 }
+
+void SliderItem::clear()
+{
+	_area = QRectF();
+	setPos(QPointF());
+}
+
+void SliderItem::setArea(const QRectF &area)
+{
+	prepareGeometryChange();
+	_area = area;
+}

src/slideritem.h

@@ -1,21 +1,23 @@
 #ifndef SLIDERITEM_H
 #define SLIDERITEM_H
 
-#include <QGraphicsItem>
+#include <QGraphicsObject>
 
 class SliderItem : public QGraphicsObject
 {
 	Q_OBJECT
 
 public:
-	SliderItem(QGraphicsObject *parent = 0);
+	SliderItem(QGraphicsItem *parent = 0);
 
 	QRectF boundingRect() const;
 	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
 	  QWidget *widget);
 
-	QRectF area() {return _area;}
-	void setArea(const QRectF &area) {_area = area;}
+	const QRectF &area() const {return _area;}
+	void setArea(const QRectF &area);
+
+	void clear();
 
 signals:
 	void positionChanged(const QPointF&);

src/speedgraph.cpp

@@ -1,43 +1,51 @@
 #include "config.h"
+#include "gpx.h"
 #include "speedgraph.h"
 
 
-SpeedGraph::SpeedGraph(QWidget *parent) : Graph(parent)
+SpeedGraph::SpeedGraph(QWidget *parent) : GraphTab(parent)
 {
-	_max = 0;
+	_units = Metric;
+	_showTracks = true;
 
-	Graph::setXLabel(tr("Distance"));
-	Graph::setYLabel(tr("Speed"));
-	Graph::setXUnits(tr("km"));
-	Graph::setYUnits(tr("km/h"));
-	Graph::setXScale(0.001);
-	Graph::setYScale(3.6);
-	Graph::setPrecision(1);
+	setYUnits();
+	setYLabel(tr("Speed"));
+
+	setSliderPrecision(1);
 }
 
-void SpeedGraph::loadGPX(const GPX &gpx)
+void SpeedGraph::setInfo()
 {
-	QVector<QPointF> data;
-	qreal max = 0;
+	if (_showTracks) {
+		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale(), 'f',
+		  1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale(), 'f',
+		  1) + UNIT_SPACE + yUnits());
+	} else
+		clearInfo();
+}
 
+void SpeedGraph::loadGPX(const GPX &gpx, const QList<PathItem *> &paths)
+{
+	for (int i = 0; i < gpx.tracks().count(); i++) {
+		const Graph &graph = gpx.tracks().at(i)->speed();
+		if (graph.size() < 2) {
+			skipColor();
+			continue;
+		}
 
-	gpx.speedGraph(data);
-	if (data.isEmpty())
-		return;
+		_avg.append(QPointF(gpx.tracks().at(i)->distance(),
+		  gpx.tracks().at(i)->distance() / gpx.tracks().at(i)->time()));
 
-	_avg.append(QPointF(gpx.distance(), gpx.distance() / gpx.time()));
+		GraphView::loadGraph(graph, paths.at(i));
+	}
 
-	for (int i = 0; i < data.size(); i++)
-		max = qMax(max, data.at(i).y());
-	_max = qMax(_max, max);
+	for (int i = 0; i < gpx.routes().count(); i++)
+		skipColor();
 
+	setInfo();
 
-	addInfo(tr("Average"), QString::number(avg() * _yScale, 'f', 1)
-	  + THIN_SPACE + _yUnits);
-	addInfo(tr("Maximum"), QString::number(_max * _yScale,  'f', 1)
-	  + THIN_SPACE + _yUnits);
-
-	Graph::loadData(data);
+	redraw();
 }
 
 qreal SpeedGraph::avg() const
@@ -55,8 +63,39 @@ qreal SpeedGraph::avg() const
 
 void SpeedGraph::clear()
 {
-	_max = 0;
 	_avg.clear();
 
-	Graph::clear();
+	GraphView::clear();
+}
+
+void SpeedGraph::setYUnits()
+{
+	if (_units == Metric) {
+		GraphView::setYUnits(tr("km/h"));
+		setYScale(MS2KMH);
+	} else {
+		GraphView::setYUnits(tr("mi/h"));
+		setYScale(MS2MIH);
+	}
+}
+
+void SpeedGraph::setUnits(enum Units units)
+{
+	_units = units;
+
+	setYUnits();
+	setInfo();
+	GraphView::setUnits(units);
+
+	redraw();
+}
+
+void SpeedGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	showGraph(show);
+	setInfo();
+
+	redraw();
 }

src/speedgraph.h

@@ -2,25 +2,34 @@
 #define SPEEDGRAPH_H
 
 #include <QList>
-#include "graph.h"
-#include "gpx.h"
+#include "graphtab.h"
 
-class SpeedGraph : public Graph
+class GPX;
+
+class SpeedGraph : public GraphTab
 {
 	Q_OBJECT
 
 public:
 	SpeedGraph(QWidget *parent = 0);
 
-	void loadGPX(const GPX &gpx);
+	QString label() const {return tr("Speed");}
+	void loadGPX(const GPX &gpx, const QList<PathItem *> &paths);
 	void clear();
-
-	qreal avg() const;
-	qreal max() const {return _max;}
+	void setUnits(enum Units units);
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
 
 private:
-	qreal _max;
+	qreal avg() const;
+	qreal max() const {return bounds().bottom();}
+	void setYUnits();
+	void setInfo();
+
 	QList<QPointF> _avg;
+
+	enum Units _units;
+	bool _showTracks;
 };
 
 #endif // SPEEDGRAPH_H

src/temperaturegraph.cpp

@@ -0,0 +1,110 @@
+#include "gpx.h"
+#include "temperaturegraph.h"
+
+
+TemperatureGraph::TemperatureGraph(QWidget *parent) : GraphTab(parent)
+{
+	_units = Metric;
+	_showTracks = true;
+
+	setYUnits();
+	setYLabel(tr("Temperature"));
+
+	setSliderPrecision(1);
+}
+
+void TemperatureGraph::setInfo()
+{
+	if (_showTracks) {
+		GraphView::addInfo(tr("Average"), QString::number(avg() * yScale()
+		  + yOffset(), 'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Minimum"), QString::number(min() * yScale()
+		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
+		GraphView::addInfo(tr("Maximum"), QString::number(max() * yScale()
+		  + yOffset(),  'f', 1) + UNIT_SPACE + yUnits());
+	} else
+		clearInfo();
+}
+
+void TemperatureGraph::loadGPX(const GPX &gpx, const QList<PathItem *> &paths)
+{
+	for (int i = 0; i < gpx.tracks().count(); i++) {
+		const Graph &graph = gpx.tracks().at(i)->temperature();
+		qreal sum = 0, w = 0;
+
+		if (graph.size() < 2) {
+			skipColor();
+			continue;
+		}
+
+		for (int j = 1; j < graph.size(); j++) {
+			qreal ds = graph.at(j).s() - graph.at(j-1).s();
+			sum += graph.at(j).y() * ds;
+			w += ds;
+		}
+		_avg.append(QPointF(gpx.tracks().at(i)->distance(), sum/w));
+
+		GraphView::loadGraph(graph, paths.at(i));
+	}
+
+	for (int i = 0; i < gpx.routes().count(); i++)
+		skipColor();
+
+	setInfo();
+
+	redraw();
+}
+
+qreal TemperatureGraph::avg() const
+{
+	qreal sum = 0, w = 0;
+	QList<QPointF>::const_iterator it;
+
+	for (it = _avg.begin(); it != _avg.end(); it++) {
+		sum += it->y() * it->x();
+		w += it->x();
+	}
+
+	return (sum / w);
+}
+
+void TemperatureGraph::clear()
+{
+	_avg.clear();
+
+	GraphView::clear();
+}
+
+void TemperatureGraph::setYUnits()
+{
+	if (_units == Metric) {
+		GraphView::setYUnits(QChar(0x00B0) + tr("C"));
+		setYScale(1);
+		setYOffset(0);
+	} else {
+		GraphView::setYUnits(QChar(0x00B0) + tr("F"));
+		setYScale(C2FS);
+		setYOffset(C2FO);
+	}
+}
+
+void TemperatureGraph::setUnits(enum Units units)
+{
+	_units = units;
+
+	setYUnits();
+	setInfo();
+	GraphView::setUnits(units);
+
+	redraw();
+}
+
+void TemperatureGraph::showTracks(bool show)
+{
+	_showTracks = show;
+
+	showGraph(show);
+	setInfo();
+
+	redraw();
+}

src/temperaturegraph.h

@@ -0,0 +1,35 @@
+#ifndef TEMPERATUREGRAPH_H
+#define TEMPERATUREGRAPH_H
+
+#include "graphtab.h"
+
+class GPX;
+
+class TemperatureGraph : public GraphTab
+{
+	Q_OBJECT
+
+public:
+	TemperatureGraph(QWidget *parent = 0);
+
+	QString label() const {return tr("Temperature");}
+	void loadGPX(const GPX &gpx, const QList<PathItem *> &paths);
+	void clear();
+	void setUnits(enum Units units);
+	void showTracks(bool show);
+	void showRoutes(bool show) {Q_UNUSED(show);}
+
+private:
+	qreal avg() const;
+	qreal min() const {return bounds().top();}
+	qreal max() const {return bounds().bottom();}
+	void setYUnits();
+	void setInfo();
+
+	QList<QPointF> _avg;
+
+	enum Units _units;
+	bool _showTracks;
+};
+
+#endif // TEMPERATUREGRAPH_H

src/tooltip.cpp

@@ -0,0 +1,20 @@
+#include "tooltip.h"
+
+void ToolTip::insert(const QString &key, const QString &value)
+{
+	QPair<QString, QString> entry(key, value);
+	_list.append(entry);
+}
+
+QString ToolTip::toString()
+{
+	QString ret = "<table>";
+
+	for (int i = 0; i < _list.count(); i++)
+		ret += "<tr><td align=\"right\"><b>" + _list.at(i).first
+		  + ":&nbsp;</b></td><td>" + _list.at(i).second + "</td></tr>";
+
+	ret += "</table>";
+
+	return ret;
+}

src/tooltip.h

@@ -0,0 +1,18 @@
+#ifndef TOOLTIP_H
+#define TOOLTIP_H
+
+#include <QString>
+#include <QList>
+#include <QPair>
+
+class ToolTip
+{
+public:
+	void insert(const QString &key, const QString &value);
+	QString toString();
+
+private:
+	QList<QPair<QString, QString> > _list;
+};
+
+#endif // TOOLTIP_H