qgsapplication.h

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/***************************************************************************
    qgsapplication.h - Accessors for application-wide data
     --------------------------------------
    Date                 : 02-Jan-2006
    Copyright            : (C) 2006 by Tom Elwertowski
    Email                : telwertowski at users dot sourceforge dot net
 ***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSAPPLICATION_H
#define QGSAPPLICATION_H
 
#include "qgis_core.h"
#include <QApplication>
#include <QEvent>
#include <QStringList>
#include <QColor>
 
#include <memory>
#include "qgis_sip.h"
#include "qgsconfig.h"
#include "qgssettingsentryimpl.h"
#include "qgstranslationcontext.h"
 
class QgsSettingsRegistryCore;
class Qgs3DRendererRegistry;
class QgsActionScopeRegistry;
class QgsAnnotationItemRegistry;
class QgsRuntimeProfiler;
class QgsTaskManager;
class QgsFieldFormatterRegistry;
class QgsColorSchemeRegistry;
class QgsPaintEffectRegistry;
class QgsProjectStorageRegistry;
class QgsExternalStorageRegistry;
class QgsLocalizedDataPathRegistry;
class QgsLayerMetadataProviderRegistry;
class QgsRendererRegistry;
class QgsSvgCache;
class QgsImageCache;
class QgsSourceCache;
class QgsSymbolLayerRegistry;
class QgsRasterRendererRegistry;
class QgsGpsConnectionRegistry;
class QgsBabelFormatRegistry;
class QgsDataItemProviderRegistry;
class QgsPluginLayerRegistry;
class QgsClassificationMethodRegistry;
class QgsMessageLog;
class QgsProcessingRegistry;
class QgsAnnotationRegistry;
class QgsUserProfile;
class QgsUserProfileManager;
class QgsPageSizeRegistry;
class QgsLayoutItemRegistry;
class QgsAuthManager;
class QgsNetworkContentFetcherRegistry;
class QgsValidityCheckRegistry;
class QTranslator;
class QgsCalloutRegistry;
class QgsBookmarkManager;
class QgsStyleModel;
class QgsNumericFormatRegistry;
class QgsConnectionRegistry;
class QgsScaleBarRendererRegistry;
class Qgs3DSymbolRegistry;
class QgsPointCloudRendererRegistry;
class QgsTileDownloadManager;
class QgsCoordinateReferenceSystemRegistry;
class QgsRecentStyleHandler;
class QgsDatabaseQueryLog;
class QgsFontManager;
 
class CORE_EXPORT QgsApplication : public QApplication
{
 
#ifdef SIP_RUN
    % TypeCode
    // Convert a Python argv list to a conventional C argc count and argv array.
    static char **qtgui_ArgvToC( PyObject *argvlist, int &argc )
    {
      char **argv;
 
      argc = PyList_GET_SIZE( argvlist );
 
      // Allocate space for two copies of the argument pointers, plus the
      // terminating NULL.
      if ( ( argv = ( char ** )sipMalloc( 2 * ( argc + 1 ) * sizeof( char * ) ) ) == NULL )
        return NULL;
 
      // Convert the list.
      for ( int a = 0; a < argc; ++a )
      {
        char *arg;
        // Get the argument and allocate memory for it.
        if ( ( arg = PyBytes_AsString( PyList_GET_ITEM( argvlist, a ) ) ) == NULL ||
             ( argv[a] = ( char * )sipMalloc( strlen( arg ) + 1 ) ) == NULL )
          return NULL;
        // Copy the argument and save a pointer to it.
        strcpy( argv[a], arg );
        argv[a + argc + 1] = argv[a];
      }
 
      argv[argc + argc + 1] = argv[argc] = NULL;
 
      return argv;
    }
 
    // Remove arguments from the Python argv list that have been removed from the
    // C argv array.
    static void qtgui_UpdatePyArgv( PyObject *argvlist, int argc, char **argv )
    {
      for ( int a = 0, na = 0; a < argc; ++a )
      {
        // See if it was removed.
        if ( argv[na] == argv[a + argc + 1] )
          ++na;
        else
          PyList_SetSlice( argvlist, na, na + 1, NULL );
      }
    }
    % End
#endif
 
    Q_OBJECT
 
  public:
 
    enum StyleSheetType
    {
      Qt, 
      WebBrowser, 
    };
 
    static const char *QGIS_ORGANIZATION_NAME;
    static const char *QGIS_ORGANIZATION_DOMAIN;
    static const char *QGIS_APPLICATION_NAME;
#ifndef SIP_RUN
 
    QgsApplication( int &argc, char **argv, bool GUIenabled, const QString &profileFolder = QString(), const QString &platformName = "external" );
#else
 
    QgsApplication( SIP_PYLIST argv, bool GUIenabled, QString profileFolder = QString(), QString platformName = "external" ) / PostHook = __pyQtQAppHook__ / [( int &argc, char **argv, bool GUIenabled, const QString &profileFolder = QString(), const QString &platformName = "desktop" )];
    % MethodCode
    // The Python interface is a list of argument strings that is modified.
 
    int argc;
    char **argv;
 
    // Convert the list.
    if ( ( argv = qtgui_ArgvToC( a0, argc ) ) == NULL )
      sipIsErr = 1;
    else
    {
      // Create it now the arguments are right.
      static int nargc = argc;
 
      sipCpp = new sipQgsApplication( nargc, argv, a1, *a2, *a3 );
 
      // Now modify the original list.
      qtgui_UpdatePyArgv( a0, argc, argv );
    }
    % End
#endif
 
    ~QgsApplication() override;
 
    static QgsApplication *instance();
 
    static void init( QString profileFolder = QString() ) SIP_SKIP;
 
    bool event( QEvent *event ) override;
 
    bool notify( QObject *receiver, QEvent *event ) override;
 
    static void setFileOpenEventReceiver( QObject *receiver );
 
    static void setThemeName( const QString &themeName );
 
    static QString resolvePkgPath();
 
    static QString themeName();
 
    static void setUITheme( const QString &themeName );
 
    static QHash<QString, QString> uiThemes();
 
    static QString authorsFilePath();
 
    static QString contributorsFilePath();
 
    static QString developersMapFilePath();
 
    static QString sponsorsFilePath();
 
    static QString donorsFilePath();
 
    static QString serverResourcesPath();
 
    static QString translatorsFilePath();
 
    static QString licenceFilePath();
 
    static QString i18nPath();
 
    static QString metadataPath();
 
    static QString qgisMasterDatabaseFilePath();
 
    static QString qgisSettingsDirPath();
 
    static QString qgisUserDatabaseFilePath();
 
    static QString qgisAuthDatabaseFilePath();
 
    static QString splashPath();
 
    static QString iconsPath();
 
    static QString srsDatabaseFilePath();
 
    static void setSvgPaths( const QStringList &svgPaths );
 
    static QStringList svgPaths();
 
    static QStringList layoutTemplatePaths();
 
    static QMap<QString, QString> systemEnvVars();
 
    static QString prefixPath();
 
    static QString pluginPath();
 
    static QString pkgDataPath();
 
    static QString activeThemePath();
 
    static QString defaultThemePath();
 
    static QString iconPath( const QString &iconFile );
 
    static QIcon getThemeIcon( const QString &name, const QColor &fillColor = QColor(), const QColor &strokeColor = QColor() );
 
    enum Cursor
    {
      ZoomIn, 
      ZoomOut, 
      Identify, 
      CrossHair, 
      CapturePoint, 
      Select, 
      Sampler, 
    };
 
    static QCursor getThemeCursor( Cursor cursor );
 
    static QPixmap getThemePixmap( const QString &name, const QColor &foreColor = QColor(), const QColor &backColor = QColor(), int size = 16 );
 
    static QString userStylePath();
 
    static QRegularExpression shortNameRegularExpression();
 
    static QString userLoginName();
 
    static QString userFullName();
 
    static QString osName();
 
    static int systemMemorySizeMb();
 
    static QString platform();
 
    static QString locale();
 
    static void setLocale( const QLocale &locale );
 
    static QString userThemesFolder();
 
    static QString defaultStylePath();
 
    static QString defaultThemesFolder();
 
    static QString libraryPath();
 
    static QString libexecPath();
 
    static QString qmlImportPath();
 
    static void setPrefixPath( const QString &prefixPath, bool useDefaultPaths = false );
 
    static void setPluginPath( const QString &pluginPath );
 
    static void setPkgDataPath( const QString &pkgDataPath );
 
    static void setDefaultSvgPaths( const QStringList &pathList );
 
    static void setAuthDatabaseDirPath( const QString &authDbDirPath );
 
    static void initQgis();
 
    static bool createDatabase( QString *errorMessage = nullptr );
 
    static bool createThemeFolder();
 
    static void exitQgis();
 
    static QString appIconPath();
 
    enum endian_t
    {
      XDR = 0,  // network, or big-endian, byte order
      NDR = 1   // little-endian byte order
    };
 
    static endian_t endian();
 
    static QString reportStyleSheet( QgsApplication::StyleSheetType styleSheetType = QgsApplication::StyleSheetType::Qt );
 
    static QString showSettings();
 
    static void registerOgrDrivers();
 
    static QString absolutePathToRelativePath( const QString &apath, const QString &targetPath );
    static QString relativePathToAbsolutePath( const QString &rpath, const QString &targetPath );
 
    static bool isRunningFromBuildDir() { return ABISYM( mRunningFromBuildDir ); }
#if defined(_MSC_VER) && !defined(USING_NMAKE) && !defined(USING_NINJA)
    static QString cfgIntDir() SIP_SKIP;
#endif
    static QString buildSourcePath();
    static QString buildOutputPath();
 
    static void skipGdalDriver( const QString &driver );
 
    static void restoreGdalDriver( const QString &driver );
 
    static QStringList skippedGdalDrivers();
 
    static void applyGdalSkippedDrivers();
 
    static void registerGdalDriversFromSettings();
 
    static QStringList deferredSkippedGdalDrivers();
 
    static void setSkippedGdalDrivers( const QStringList &skippedGdalDrivers,
                                       const QStringList &deferredSkippedGdalDrivers );
 
    static int maxThreads();
 
    static void setMaxThreads( int maxThreads );
 
    static QgsTaskManager *taskManager();
 
    static QgsSettingsRegistryCore *settingsRegistryCore() SIP_KEEPREFERENCE;
 
    static QgsColorSchemeRegistry *colorSchemeRegistry() SIP_KEEPREFERENCE;
 
    static QgsPaintEffectRegistry *paintEffectRegistry() SIP_KEEPREFERENCE;
 
    static QgsRendererRegistry *rendererRegistry() SIP_KEEPREFERENCE;
 
    static QgsRasterRendererRegistry *rasterRendererRegistry() SIP_SKIP;
 
    static QgsPointCloudRendererRegistry *pointCloudRendererRegistry() SIP_KEEPREFERENCE;
 
    static QgsDataItemProviderRegistry *dataItemProviderRegistry() SIP_KEEPREFERENCE;
 
    static QgsCoordinateReferenceSystemRegistry *coordinateReferenceSystemRegistry() SIP_KEEPREFERENCE;
 
    static QgsSvgCache *svgCache();
 
    static QgsImageCache *imageCache();
 
    static QgsSourceCache *sourceCache();
 
    static QgsNetworkContentFetcherRegistry *networkContentFetcherRegistry() SIP_KEEPREFERENCE;
 
    static QgsValidityCheckRegistry *validityCheckRegistry() SIP_KEEPREFERENCE;
 
    static QgsSymbolLayerRegistry *symbolLayerRegistry() SIP_KEEPREFERENCE;
 
    static QgsCalloutRegistry *calloutRegistry() SIP_KEEPREFERENCE;
 
    static QgsLayoutItemRegistry *layoutItemRegistry() SIP_KEEPREFERENCE;
 
    static QgsAnnotationItemRegistry *annotationItemRegistry() SIP_KEEPREFERENCE;
 
    static QgsGpsConnectionRegistry *gpsConnectionRegistry() SIP_KEEPREFERENCE;
 
    static QgsBabelFormatRegistry *gpsBabelFormatRegistry() SIP_KEEPREFERENCE;
 
    static QgsPluginLayerRegistry *pluginLayerRegistry() SIP_KEEPREFERENCE;
 
    static QgsClassificationMethodRegistry *classificationMethodRegistry() SIP_KEEPREFERENCE;
 
    static QgsBookmarkManager *bookmarkManager();
 
    static QgsTileDownloadManager *tileDownloadManager() SIP_SKIP;
 
    static QgsRecentStyleHandler *recentStyleHandler() SIP_KEEPREFERENCE;
 
    static QgsDatabaseQueryLog *databaseQueryLog() SIP_KEEPREFERENCE;
 
    static QgsStyleModel *defaultStyleModel();
 
    static QgsFontManager *fontManager() SIP_KEEPREFERENCE;
 
    static QgsMessageLog *messageLog();
 
    static QgsAuthManager *authManager();
 
    static QgsProcessingRegistry *processingRegistry();
 
    static QgsPageSizeRegistry *pageSizeRegistry() SIP_KEEPREFERENCE;
 
    static QgsAnnotationRegistry *annotationRegistry() SIP_SKIP;
 
    static QgsActionScopeRegistry *actionScopeRegistry() SIP_KEEPREFERENCE;
 
    static QgsConnectionRegistry *connectionRegistry();
 
    static QgsRuntimeProfiler *profiler();
 
    static QgsNumericFormatRegistry *numericFormatRegistry() SIP_KEEPREFERENCE;
 
    static QgsFieldFormatterRegistry *fieldFormatterRegistry() SIP_KEEPREFERENCE;
 
    static Qgs3DRendererRegistry *renderer3DRegistry() SIP_KEEPREFERENCE;
 
    static Qgs3DSymbolRegistry *symbol3DRegistry() SIP_KEEPREFERENCE;
 
    static QgsScaleBarRendererRegistry *scaleBarRendererRegistry() SIP_KEEPREFERENCE;
 
    static QgsProjectStorageRegistry *projectStorageRegistry() SIP_KEEPREFERENCE;
 
    static QgsLayerMetadataProviderRegistry *layerMetadataProviderRegistry() SIP_KEEPREFERENCE;
 
    static QgsExternalStorageRegistry *externalStorageRegistry() SIP_KEEPREFERENCE;
 
    static QgsLocalizedDataPathRegistry *localizedDataPathRegistry() SIP_KEEPREFERENCE;
 
    static QString nullRepresentation();
 
    static void setNullRepresentation( const QString &nullRepresentation );
 
    static QVariantMap customVariables();
 
    static void setCustomVariables( const QVariantMap &customVariables );
 
    static void setCustomVariable( const QString &name, const QVariant &value );
 
    static int scaleIconSize( int standardSize, bool applyDevicePixelRatio = false );
 
    int maxConcurrentConnectionsPerPool() const;
 
    static void setTranslation( const QString &translation );
 
    QString translation() const;
 
    void collectTranslatableObjects( QgsTranslationContext *translationContext );
 
#ifndef SIP_RUN
    static const inline QgsSettingsEntryString settingsLocaleUserLocale = QgsSettingsEntryString( QStringLiteral( "userLocale" ), QgsSettings::Prefix::LOCALE, QString() );
    static const inline QgsSettingsEntryBool settingsLocaleOverrideFlag = QgsSettingsEntryBool( QStringLiteral( "overrideFlag" ), QgsSettings::Prefix::LOCALE, false );
    static const inline QgsSettingsEntryString settingsLocaleGlobalLocale = QgsSettingsEntryString( QStringLiteral( "globalLocale" ), QgsSettings::Prefix::LOCALE, QString() );
    static const inline QgsSettingsEntryBool settingsLocaleShowGroupSeparator = QgsSettingsEntryBool( QStringLiteral( "showGroupSeparator" ), QgsSettings::Prefix::LOCALE, false );
    static const inline QgsSettingsEntryStringList settingsSearchPathsForSVG = QgsSettingsEntryStringList( QStringLiteral( "searchPathsForSVG" ), QgsSettings::Prefix::SVG, QStringList() );
#endif
 
#ifdef SIP_RUN
    SIP_IF_FEATURE( ANDROID )
    //dummy method to workaround sip generation issue
    bool x11EventFilter( XEvent *event );
    SIP_END
#endif
 
  signals:
    void preNotify( QObject *receiver, QEvent *event, bool *done ) SIP_SKIP;
 
    void customVariablesChanged();
 
 
    void nullRepresentationChanged();
 
    void requestForTranslatableObjects( QgsTranslationContext *translationContext );
 
 
    void localeChanged();
 
 
  private:
 
    static void copyPath( const QString &src, const QString &dst );
    static QObject *ABISYM( mFileOpenEventReceiver );
 
    static bool ABISYM( mInitialized );
 
    static bool ABISYM( mRunningFromBuildDir );
 
    static int ABISYM( sMaxThreads );
 
    QMap<QString, QIcon> mIconCache;
    QMap<Cursor, QCursor> mCursorCache;
 
    QTranslator *mQgisTranslator = nullptr;
    QTranslator *mQtTranslator = nullptr;
    QTranslator *mQtBaseTranslator = nullptr;
 
    QgsDataItemProviderRegistry *mDataItemProviderRegistry = nullptr;
    QgsAuthManager *mAuthManager = nullptr;
 
    struct ApplicationMembers
    {
      QgsSettingsRegistryCore *mSettingsRegistryCore = nullptr;
      QgsCoordinateReferenceSystemRegistry *mCrsRegistry = nullptr;
      Qgs3DRendererRegistry *m3DRendererRegistry = nullptr;
      Qgs3DSymbolRegistry *m3DSymbolRegistry = nullptr;
      QgsActionScopeRegistry *mActionScopeRegistry = nullptr;
      QgsAnnotationRegistry *mAnnotationRegistry = nullptr;
      QgsColorSchemeRegistry *mColorSchemeRegistry = nullptr;
      QgsLocalizedDataPathRegistry *mLocalizedDataPathRegistry = nullptr;
      QgsNumericFormatRegistry *mNumericFormatRegistry = nullptr;
      QgsFieldFormatterRegistry *mFieldFormatterRegistry = nullptr;
      QgsGpsConnectionRegistry *mGpsConnectionRegistry = nullptr;
      QgsBabelFormatRegistry *mGpsBabelFormatRegistry = nullptr;
      QgsNetworkContentFetcherRegistry *mNetworkContentFetcherRegistry = nullptr;
      QgsScaleBarRendererRegistry *mScaleBarRendererRegistry = nullptr;
      QgsValidityCheckRegistry *mValidityCheckRegistry = nullptr;
      QgsMessageLog *mMessageLog = nullptr;
      QgsPaintEffectRegistry *mPaintEffectRegistry = nullptr;
      QgsPluginLayerRegistry *mPluginLayerRegistry = nullptr;
      QgsClassificationMethodRegistry *mClassificationMethodRegistry = nullptr;
      QgsProcessingRegistry *mProcessingRegistry = nullptr;
      QgsConnectionRegistry *mConnectionRegistry = nullptr;
      QgsProjectStorageRegistry *mProjectStorageRegistry = nullptr;
      QgsLayerMetadataProviderRegistry *mLayerMetadataProviderRegistry = nullptr;
      QgsExternalStorageRegistry *mExternalStorageRegistry = nullptr;
      QgsPageSizeRegistry *mPageSizeRegistry = nullptr;
      QgsRasterRendererRegistry *mRasterRendererRegistry = nullptr;
      QgsRendererRegistry *mRendererRegistry = nullptr;
      QgsPointCloudRendererRegistry *mPointCloudRendererRegistry = nullptr;
      QgsSvgCache *mSvgCache = nullptr;
      QgsImageCache *mImageCache = nullptr;
      QgsSourceCache *mSourceCache = nullptr;
      QgsSymbolLayerRegistry *mSymbolLayerRegistry = nullptr;
      QgsCalloutRegistry *mCalloutRegistry = nullptr;
      QgsTaskManager *mTaskManager = nullptr;
      QgsLayoutItemRegistry *mLayoutItemRegistry = nullptr;
      QgsAnnotationItemRegistry *mAnnotationItemRegistry = nullptr;
      QgsUserProfileManager *mUserConfigManager = nullptr;
      QgsBookmarkManager *mBookmarkManager = nullptr;
      QgsTileDownloadManager *mTileDownloadManager = nullptr;
      QgsStyleModel *mStyleModel = nullptr;
      QgsRecentStyleHandler *mRecentStyleHandler = nullptr;
      QgsDatabaseQueryLog *mQueryLogger = nullptr;
      QgsFontManager *mFontManager;
      QString mNullRepresentation;
      QStringList mSvgPathCache;
      bool mSvgPathCacheValid = false;
 
      ApplicationMembers();
      ~ApplicationMembers();
    };
 
    // Applications members which belong to an instance of QgsApplication
    ApplicationMembers *mApplicationMembers = nullptr;
    // ... but in case QgsApplication is never instantiated (eg with custom designer widgets), we fall back to static members
    static ApplicationMembers *sApplicationMembers;
 
    static QgsAuthManager *sAuthManager;
 
    static ApplicationMembers *members();
 
    static void invalidateCaches();
 
    friend class TestQgsApplication;
};
 
// clazy:excludeall=qstring-allocations
 
#endif