mirror of
https://github.com/qgis/QGIS.git
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499 lines
15 KiB
Plaintext
499 lines
15 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsproviderregistry.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsProviderRegistry
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{
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%Docstring
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A registry / canonical manager of data providers.
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This is a Singleton class that manages data provider access.
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Providers can be either loaded via libraries or native providers that
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are included in the core QGIS installation and accessed through function pointers.
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Loaded providers may be restricted using QGIS_PROVIDER_FILE environment variable.
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QGIS_PROVIDER_FILE is regexp pattern applied to provider file name (not provider key).
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For example, if the variable is set to gdal|ogr|postgres it will load only providers gdal,
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ogr and postgres.
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%End
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%TypeHeaderCode
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#include "qgsproviderregistry.h"
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%End
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public:
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enum WidgetMode
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{
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None,
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Embedded,
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Manager,
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};
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static QgsProviderRegistry *instance( const QString &pluginPath = QString() );
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%Docstring
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Means of accessing canonical single instance
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%End
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~QgsProviderRegistry();
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QString library( const QString &providerKey ) const /Deprecated/;
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%Docstring
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Returns path for the library of the provider.
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If the provider uses direct provider function pointers instead of a library an empty string will
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be returned.
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.. deprecated::
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QGIS 3.10 - providers may not need to be loaded from a library (empty string returned)
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%End
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QString pluginList( bool asHtml = false ) const;
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%Docstring
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Returns list of provider plugins found
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%End
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QDir libraryDirectory() const;
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%Docstring
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Returns the library directory where plugins are found.
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%End
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void setLibraryDirectory( const QDir &path );
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%Docstring
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Sets library directory where to search for plugins
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%End
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QgsDataProvider *createProvider( const QString &providerKey,
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const QString &dataSource,
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const QgsDataProvider::ProviderOptions &options = QgsDataProvider::ProviderOptions(),
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QgsDataProvider::ReadFlags flags = QgsDataProvider::ReadFlags() ) /Factory/;
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%Docstring
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Creates a new instance of a provider.
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:param providerKey: identifier of the provider
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:param dataSource: string containing data source for the provider
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:param options: provider options
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:param flags: provider flags since QGIS 3.16
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:return: new instance of provider or ``None`` on error
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.. seealso:: :py:func:`createRasterDataProvider`
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%End
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int providerCapabilities( const QString &providerKey ) const /Deprecated/;
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%Docstring
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Returns the provider capabilities
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:param providerKey: identifier of the provider
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.. versionadded:: 2.6
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.. deprecated::
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QGIS 3.10 (use instead capabilities() method of individual data item provider)
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%End
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QgsRasterDataProvider *createRasterDataProvider(
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const QString &providerKey,
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const QString &uri,
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const QString &format,
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int nBands,
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Qgis::DataType type,
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int width, int height,
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double *geoTransform,
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const QgsCoordinateReferenceSystem &crs,
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const QStringList &createOptions = QStringList() ) /Factory/;
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%Docstring
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Creates new instance of raster data provider
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.. seealso:: :py:func:`createProvider`
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.. versionadded:: 3.10
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%End
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QList<QPair<QString, QString> > pyramidResamplingMethods( const QString &providerKey );
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%Docstring
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Returns list of raster pyramid resampling methods
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.. versionadded:: 3.10
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%End
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QVariantMap decodeUri( const QString &providerKey, const QString &uri );
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%Docstring
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Breaks a provider data source URI into its component paths (e.g. file path, layer name).
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:param providerKey: identifier of the provider
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:param uri: uri string
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:return: map containing components. Standard components include "path", "layerName", "url".
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.. note::
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this function may not be supported by all providers, an empty map will be returned in such case
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.. versionadded:: 3.4
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%End
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QString encodeUri( const QString &providerKey, const QVariantMap &parts );
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%Docstring
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Reassembles a provider data source URI from its component paths (e.g. file path, layer name).
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:param providerKey: identifier of the provider
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:param parts: parts as returned by decodeUri
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:return: datasource uri string
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.. note::
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this function may not be supported by all providers, an empty string will be returned in such case
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.. seealso:: :py:func:`decodeUri`
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.. versionadded:: 3.12
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%End
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QWidget *createSelectionWidget( const QString &providerKey, QWidget *parent = 0, Qt::WindowFlags fl = Qt::WindowFlags(), QgsProviderRegistry::WidgetMode widgetMode = QgsProviderRegistry::WidgetMode::None ) /Deprecated/;
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%Docstring
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Returns a new widget for selecting layers from a provider.
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Either the ``parent`` widget must be set or the caller becomes
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responsible for deleting the returned widget.
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.. deprecated::
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QGIS 3.10 - use QgsGui.sourceSelectProviderRegistry()->createDataSourceWidget() instead
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%End
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QList< QgsDataItemProvider * > dataItemProviders( const QString &providerKey ) const /Factory/;
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%Docstring
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Returns list of data item providers of the provider
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.. note::
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Ownership of created data item providers is passed to the caller.
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.. versionadded:: 3.10
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%End
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int listStyles( const QString &providerKey,
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const QString &uri,
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QStringList &ids,
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QStringList &names,
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QStringList &descriptions,
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QString &errCause );
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%Docstring
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Lists stored layer styles in the provider defined by ``providerKey`` and ``uri``
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:return: -1 if not implemented by provider, otherwise number of styles stored
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.. versionadded:: 3.10
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%End
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QString getStyleById( const QString &providerKey, const QString &uri, QString styleId, QString &errCause );
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%Docstring
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Gets a layer style defined by ``styleId``
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.. versionadded:: 3.10
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%End
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bool deleteStyleById( const QString &providerKey, const QString &uri, QString styleId, QString &errCause );
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%Docstring
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Deletes a layer style defined by ``styleId``
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.. versionadded:: 3.10
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%End
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bool saveStyle( const QString &providerKey, const QString &uri, const QString &qmlStyle, const QString &sldStyle,
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const QString &styleName, const QString &styleDescription,
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const QString &uiFileContent, bool useAsDefault, QString &errCause );
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%Docstring
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Saves a layer style to provider
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.. versionadded:: 3.10
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%End
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QString loadStyle( const QString &providerKey, const QString &uri, QString &errCause );
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%Docstring
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Loads a layer style defined by ``uri``
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.. versionadded:: 3.10
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%End
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bool createDb( const QString &providerKey, const QString &dbPath, QString &errCause );
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%Docstring
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Creates database by the provider on the path
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.. versionadded:: 3.10
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%End
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QgsTransaction *createTransaction( const QString &providerKey, const QString &connString ) /Factory/;
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%Docstring
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Returns new instance of transaction. Ownership is transferred to the caller
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.. versionadded:: 3.10
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%End
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QFunctionPointer function( const QString &providerKey, const QString &functionName ) /Deprecated/;
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%Docstring
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Gets pointer to provider function
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:param providerKey: identifier of the provider
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:param functionName: name of function
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:return: pointer to function or ``None`` on error. If the provider uses direct provider
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function pointers instead of a library ``None`` will be returned.
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.. deprecated::
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QGIS 3.10 - any provider functionality should be accessed through QgsProviderMetadata
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%End
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QLibrary *createProviderLibrary( const QString &providerKey ) const /Factory,Deprecated/;
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%Docstring
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Returns a new QLibrary for the specified ``providerKey``. Ownership of the returned
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object is transferred to the caller and the caller is responsible for deleting it.
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If the provider uses direct provider function pointers instead of a library ``None`` will
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be returned.
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.. deprecated::
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QGIS 3.10 - providers may not need to be loaded from a library
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%End
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QStringList providerList() const;
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%Docstring
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Returns list of available providers by their keys
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%End
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QgsProviderMetadata *providerMetadata( const QString &providerKey ) const;
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%Docstring
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Returns metadata of the provider or ``None`` if not found
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%End
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class ProviderCandidateDetails
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{
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%Docstring
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Contains information pertaining to a candidate provider.
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.. versionadded:: 3.18
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%End
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%TypeHeaderCode
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#include "qgsproviderregistry.h"
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%End
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public:
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ProviderCandidateDetails( QgsProviderMetadata *metadata, const QList< QgsMapLayerType > &layerTypes );
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%Docstring
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Constructor for ProviderCandidateDetails, with the specified provider ``metadata`` and valid candidate ``layerTypes``.
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%End
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QgsProviderMetadata *metadata() const;
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%Docstring
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Returns the candidate provider metadata.
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%End
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QList<QgsMapLayerType> layerTypes() const;
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%Docstring
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Returns a list of map layer types which are valid options for opening the
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target using this candidate provider.
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%End
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SIP_PYOBJECT __repr__();
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%MethodCode
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QString str = QStringLiteral( "<QgsProviderRegistry.ProviderCandidateDetails: %1>" ).arg( sipCpp->metadata()->key() );
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sipRes = PyUnicode_FromString( str.toUtf8().constData() );
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%End
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};
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QList< QgsProviderRegistry::ProviderCandidateDetails > preferredProvidersForUri( const QString &uri ) const;
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%Docstring
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Returns the details for the preferred provider(s) for opening the specified ``uri``.
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The preferred provider is determined by comparing the priority returned by
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:py:func:`QgsProviderMetadata.priorityForUri()` for all registered providers, and selecting
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the provider with the largest non-zero priority.
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An empty list may be returned, which indicates that no providers are available which
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returned a non-zero priority for the specified URI.
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In the case that multiple providers returned the same priority for the URI then
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all of these providers will be returned.
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.. seealso:: :py:func:`shouldDeferUriForOtherProviders`
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.. versionadded:: 3.18
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%End
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bool shouldDeferUriForOtherProviders( const QString &uri, const QString &providerKey ) const;
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%Docstring
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Returns ``True`` if the provider with matching ``providerKey`` should defer handling of
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the specified ``uri`` to another provider.
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This method tests whether any providers are listed as the preferred provider for ``uri``
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(see :py:func:`~QgsProviderRegistry.preferredProvidersForUri`), and if so tests whether the specified provider is
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included in that preferred providers list. Returns ``True`` only if the specified provider
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is calculated as one of the preferred providers for the URI.
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In the case that there is no registered preferred provider for the URI then ``False`` will be
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returned, and the provider must use another metric to determine whether it should
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handle the URI.
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.. seealso:: :py:func:`preferredProvidersForUri`
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.. versionadded:: 3.18
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%End
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bool uriIsBlocklisted( const QString &uri ) const;
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%Docstring
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Returns ``True`` if the specified ``uri`` is known by any registered provider to be something which should
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be blocklisted from the QGIS interface, e.g. an internal detail only.
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Specifically, this method can be utilized by the browser panel to hide noisy internal details
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for URIs which are known to be sidecar files only, such as ".aux.xml" files or ".shp.xml" files,
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or the "ept-build.json" files which sit alongside Entwine "ept.json" point cloud sources.
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This method tests whether any of the registered providers return ``True`` for the their
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:py:func:`QgsProviderMetadata.uriIsBlocklisted()` implementation for the specified URI.
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.. versionadded:: 3.18
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%End
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QString fileVectorFilters() const;
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%Docstring
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Returns a file filter string for supported vector files.
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Returns a string suitable for a QFileDialog of vector file formats
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supported by all data providers.
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.. seealso:: :py:func:`fileRasterFilters`
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.. seealso:: :py:func:`fileMeshFilters`
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.. seealso:: :py:func:`filePointCloudFilters`
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%End
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QString fileRasterFilters() const;
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%Docstring
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Returns a file filter string for supported raster files.
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Returns a string suitable for a QFileDialog of raster file formats
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supported by all data providers.
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.. note::
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This replaces :py:func:`QgsRasterLayer.buildSupportedRasterFileFilter()`
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.. seealso:: :py:func:`fileVectorFilters`
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.. seealso:: :py:func:`fileMeshFilters`
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.. seealso:: :py:func:`filePointCloudFilters`
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%End
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QString fileMeshFilters() const;
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%Docstring
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Returns a file filter string for supported mesh files.
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Returns a string suitable for a QFileDialog of mesh file formats
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supported by all data providers.
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.. seealso:: :py:func:`fileMeshDatasetFilters`
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.. seealso:: :py:func:`fileRasterFilters`
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.. seealso:: :py:func:`fileVectorFilters`
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.. seealso:: :py:func:`filePointCloudFilters`
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.. versionadded:: 3.6
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%End
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QString fileMeshDatasetFilters() const;
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%Docstring
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Returns a file filter string for supported mesh dataset files.
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Returns a string suitable for a QFileDialog of mesh datasets file formats
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supported by all data providers.
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.. seealso:: :py:func:`fileMeshFilters`
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.. versionadded:: 3.6
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%End
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QString filePointCloudFilters() const;
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%Docstring
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Returns a file filter string for supported point clouds.
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Returns a string suitable for a QFileDialog of point cloud file formats
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supported by all data providers.
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.. seealso:: :py:func:`fileMeshFilters`
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.. seealso:: :py:func:`fileRasterFilters`
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.. seealso:: :py:func:`fileVectorFilters`
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.. versionadded:: 3.18
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%End
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QString databaseDrivers() const;
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%Docstring
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Returns a string containing the available database drivers
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%End
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QString directoryDrivers() const;
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%Docstring
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Returns a string containing the available directory drivers
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%End
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QString protocolDrivers() const;
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%Docstring
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Returns a string containing the available protocol drivers
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%End
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void registerGuis( QWidget *widget ) /Deprecated/;
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%Docstring
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.. deprecated:: QGIS 3.10
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- does nothing - use QgsGui.providerGuiRegistry()
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%End
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bool registerProvider( QgsProviderMetadata *providerMetadata /Transfer/ );
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%Docstring
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register a new vector data provider from its ``providerMetadata``
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:return: ``True`` on success, ``False`` if a provider with the same key was already registered
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.. note::
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ownership of the QgsProviderMetadata instance is transferred to the registry
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.. versionadded:: 3.2
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%End
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private:
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QgsProviderRegistry( const QString &pluginPath );
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}; // class QgsProviderRegistry
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/qgsproviderregistry.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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