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383422f069
Ownership of Python subclass algorithm instances was getting mangled due to passing through multiple functions with /Factory/ annotations. As per Phil Thomson's advice on https://www.riverbankcomputing.com/pipermail/pyqt/2017-July/039450.html: " /Factory/ is used when the instance returned is guaranteed to be new to Python. In this case it isn't because it has already been seen when being returned by createInstance(). (However for a different sub-class implemented in C++ then it would be the first time it was seen by Python so the /Factory/ on create() would be correct.) You might try using /TransferBack/ on create() instead - that might be the best compromise. " Changing to /TransferBack/ indeed fixes the error for me.
134 lines
4.5 KiB
Plaintext
134 lines
4.5 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/processing/qgsprocessingregistry.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 QgsProcessingRegistry : QObject
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{
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%Docstring
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Registry for various processing components, including providers, algorithms
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and various parameters and outputs.
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QgsProcessingRegistry is not usually directly created, but rather accessed through
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QgsApplication.processingRegistry().
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.. versionadded:: 3.0
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%End
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%TypeHeaderCode
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#include "qgsprocessingregistry.h"
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%End
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public:
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QgsProcessingRegistry( QObject *parent /TransferThis/ = 0 );
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%Docstring
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Constructor for QgsProcessingRegistry.
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%End
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~QgsProcessingRegistry();
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QList<QgsProcessingProvider *> providers() const;
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%Docstring
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Get list of available providers.
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:rtype: list of QgsProcessingProvider
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%End
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bool addProvider( QgsProcessingProvider *provider /Transfer/ );
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%Docstring
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Add a processing provider to the registry. Ownership of the provider is transferred to the registry,
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and the provider's parent will be set to the registry.
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Returns false if the provider could not be added (eg if a provider with a duplicate ID already exists
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in the registry).
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Adding a provider to the registry automatically triggers the providers QgsProcessingProvider.load()
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method to populate the provider with algorithms.
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.. seealso:: removeProvider()
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:rtype: bool
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%End
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bool removeProvider( QgsProcessingProvider *provider );
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%Docstring
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Removes a provider implementation from the registry (the provider object is deleted).
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Returns false if the provider could not be removed (eg provider does not exist in the registry).
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.. seealso:: addProvider()
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:rtype: bool
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%End
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bool removeProvider( const QString &providerId );
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%Docstring
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Removes a provider implementation from the registry (the provider object is deleted).
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Returns false if the provider could not be removed (eg provider does not exist in the registry).
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.. seealso:: addProvider()
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:rtype: bool
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%End
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QgsProcessingProvider *providerById( const QString &id );
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%Docstring
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Returns a matching provider by provider ID.
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:rtype: QgsProcessingProvider
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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 all available algorithms from registered providers.
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.. seealso:: algorithmById()
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:rtype: list of const QgsProcessingAlgorithm
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%End
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const QgsProcessingAlgorithm *algorithmById( const QString &id ) const;
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%Docstring
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Finds an algorithm by its ID. If no matching algorithm is found, a None
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is returned.
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.. seealso:: algorithms()
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.. seealso:: createAlgorithmById()
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:rtype: QgsProcessingAlgorithm
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%End
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QgsProcessingAlgorithm *createAlgorithmById( const QString &id, const QVariantMap &configuration = QVariantMap() ) const /TransferBack/;
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%Docstring
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Creates a new instance of an algorithm by its ID. If no matching algorithm is found, a None
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is returned. Callers take responsibility for deleting the returned object.
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The ``configuration`` argument allows passing of a map of configuration settings
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to the algorithm, allowing it to dynamically adjust its initialized parameters
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and outputs according to this configuration. This is generally used only for
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algorithms in a model, allowing them to adjust their behavior at run time
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according to some user configuration.
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.. seealso:: algorithms()
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.. seealso:: algorithmById()
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:rtype: QgsProcessingAlgorithm
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%End
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signals:
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void providerAdded( const QString &id );
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%Docstring
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Emitted when a provider has been added to the registry.
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%End
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void providerRemoved( const QString &id );
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%Docstring
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Emitted when a provider is removed from the registry
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%End
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private:
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QgsProcessingRegistry( const QgsProcessingRegistry &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/qgsprocessingregistry.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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