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2d1e9188f1
their unique id() This is used when generating the QgsHelp url for algorithms attached to the providers. Implement helpId overrides for the native and 3d providers so that they return 'qgis' helpIds, meaning that all QGIS processing algorithm documentation can be kept within the same url path regardless of which QGIS provider library it sits within. This also allows us to freely move algorithms from the Python 'qgis' provider to c++ 'native' provider in future releases without breaking the help URLs. Fixes #17231
245 lines
7.7 KiB
Plaintext
245 lines
7.7 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/processing/qgsprocessingprovider.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 QgsProcessingProvider : QObject
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{
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%Docstring
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Abstract base class for processing providers. An algorithm provider is a set of
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related algorithms, typically from the same external application or related
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to a common area of analysis.
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.. versionadded:: 3.0
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%End
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%TypeHeaderCode
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#include "qgsprocessingprovider.h"
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%End
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public:
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QgsProcessingProvider( QObject *parent /TransferThis/ = 0 );
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%Docstring
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Constructor for QgsProcessingProvider.
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%End
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~QgsProcessingProvider();
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virtual QIcon icon() const;
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%Docstring
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Returns an icon for the provider.
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.. seealso:: :py:func:`svgIconPath`
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%End
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virtual QString svgIconPath() const;
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%Docstring
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Returns a path to an SVG version of the provider's icon.
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.. seealso:: :py:func:`icon`
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%End
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virtual QString id() const = 0;
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%Docstring
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Returns the unique provider id, used for identifying the provider. This string
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should be a unique, short, character only string, eg "qgis" or "gdal". This
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string should not be localised.
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.. seealso:: :py:func:`name`
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.. seealso:: :py:func:`helpId`
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%End
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virtual QString helpId() const;
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%Docstring
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Returns the provider help id string, used for creating QgsHelp urls for algorithms
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belong to this provider. By default, this returns the provider's id(). This string
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should not be localised.
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.. seealso:: :py:func:`id`
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%End
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virtual QString name() const = 0;
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%Docstring
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Returns the provider name, which is used to describe the provider within the GUI.
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This string should be short (e.g. "Lastools") and localised.
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.. seealso:: :py:func:`longName`
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.. seealso:: :py:func:`id`
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%End
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virtual QString longName() const;
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%Docstring
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Returns the a longer version of the provider name, which can include extra details
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such as version numbers. E.g. "Lastools LIDAR tools (version 2.2.1)".
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This string should be localised.
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The default implementation returns the same string as name().
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.. seealso:: :py:func:`name`
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.. seealso:: :py:func:`id`
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%End
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virtual bool canBeActivated() const;
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%Docstring
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Returns true if the provider can be activated, or false if it cannot be activated (e.g. due to
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missing external dependencies).
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.. seealso:: :py:func:`isActive`
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%End
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virtual bool isActive() const;
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%Docstring
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Returns true if the provider is active and able to run algorithms.
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%End
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virtual QStringList supportedOutputRasterLayerExtensions() const;
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%Docstring
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Returns a list of the raster format file extensions supported by this provider.
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.. seealso:: :py:func:`supportedOutputVectorLayerExtensions`
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%End
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virtual QStringList supportedOutputVectorLayerExtensions() const;
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%Docstring
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Returns a list of the vector format file extensions supported by this provider.
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.. seealso:: :py:func:`defaultVectorFileExtension`
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.. seealso:: :py:func:`supportedOutputRasterLayerExtensions`
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.. seealso:: :py:func:`supportsNonFileBasedOutput`
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%End
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virtual QString defaultVectorFileExtension( bool hasGeometry = true ) const;
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%Docstring
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Returns the default file extension to use for vector outputs created by the
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provider.
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If ``hasGeometry`` is true then the output file format must have support for
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geometry. If ``hasGeometry`` is false then non-spatial formats can be used.
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The default implementation returns the user's default Processing vector output format
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setting, if it's supported by the provider (see supportedOutputVectorLayerExtensions()).
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Otherwise the first reported supported vector format will be used.
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.. seealso:: :py:func:`supportedOutputVectorLayerExtensions`
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.. seealso:: :py:func:`defaultRasterFileExtension`
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%End
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virtual QString defaultRasterFileExtension() const;
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%Docstring
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Returns the default file extension to use for raster outputs created by the
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provider.
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The default implementation returns the user's default Processing raster output format
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setting, if it's supported by the provider (see supportedOutputRasterLayerExtensions()).
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Otherwise the first reported supported raster format will be used.
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.. seealso:: :py:func:`supportedOutputRasterLayerExtensions`
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.. seealso:: :py:func:`defaultVectorFileExtension`
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%End
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virtual bool supportsNonFileBasedOutput() const;
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%Docstring
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Returns true if the provider supports non-file based outputs (such as memory layers
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or direct database outputs). If a provider returns false for this method than it
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indicates that none of the outputs from any of the provider's algorithms have
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support for non-file based outputs. Returning true indicates that the algorithm's
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parameters will each individually declare their non-file based support.
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The default behavior for providers is to support non-file based outputs, and most
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providers which rely solely on QGIS API (and which do not depend on third-party scripts
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or external dependencies) will automatically support this.
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.. seealso:: :py:func:`supportedOutputVectorLayerExtensions`
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%End
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virtual bool load();
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%Docstring
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Loads the provider. This will be called when the plugin is being loaded, and any general
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setup actions should occur in an overridden version of this method.
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Subclasses should not individually load any algorithms in their load() implementations, as that must
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occur within the loadAlgorithms() method. Instead, subclasses should call refreshAlgorithms()
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from any overloaded load() method to trigger an initial load of the provider's algorithms.
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:return: true if provider could be successfully loaded
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.. seealso:: :py:func:`unload`
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%End
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virtual void unload();
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%Docstring
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Unloads the provider. Any tear-down steps required by the provider should be implemented here.
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.. seealso:: :py:func:`load`
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%End
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void refreshAlgorithms();
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%Docstring
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Refreshes the algorithms available from the provider, causing it to re-populate with all associated algorithms.
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%End
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QList< const QgsProcessingAlgorithm * > algorithms() const;
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%Docstring
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Returns a list of algorithms supplied by this provider.
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.. seealso:: :py:func:`algorithm`
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%End
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const QgsProcessingAlgorithm *algorithm( const QString &name ) const;
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%Docstring
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Returns the matching algorithm by ``name``, or a None if no matching
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algorithm is contained by this provider.
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.. seealso:: :py:func:`algorithms`
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%End
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signals:
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void algorithmsLoaded();
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%Docstring
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Emitted when the provider has loaded (or refreshed) its list of available
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algorithms.
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.. seealso:: :py:func:`refreshAlgorithms`
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%End
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protected:
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virtual void loadAlgorithms() = 0;
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%Docstring
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Loads all algorithms belonging to this provider. Subclasses should implement this, calling
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addAlgorithm() to register all their associated algorithms.
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%End
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bool addAlgorithm( QgsProcessingAlgorithm *algorithm /Transfer/ );
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%Docstring
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Adds an ``algorithm`` to the provider. Ownership of the algorithm is transferred to the provider.
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%End
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private:
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QgsProcessingProvider( const QgsProcessingProvider &other );
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};
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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/processing/qgsprocessingprovider.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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