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/************************************************************************
* This file has been generated automatically from *
* *
* src/core/qgspropertycollection.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
typedef QMap< int, QgsPropertyDefinition > QgsPropertiesDefinition;
class QgsAbstractPropertyCollection
{
%Docstring(signature="appended")
Abstract base class for :py:class:`QgsPropertyCollection` like objects.
%End
%TypeHeaderCode
#include "qgspropertycollection.h"
%End
%ConvertToSubClassCode
if ( dynamic_cast<QgsPropertyCollection *>( sipCpp ) )
sipType = sipType_QgsPropertyCollection;
else if ( dynamic_cast<QgsPropertyCollectionStack *>( sipCpp ) )
sipType = sipType_QgsPropertyCollectionStack;
else
sipType = sipType_QgsAbstractPropertyCollection;
%End
public:
QgsAbstractPropertyCollection( const QString &name = QString() );
%Docstring
Constructor for QgsAbstractPropertyCollection. The name parameter should
be set to a descriptive name for the collection.
%End
virtual ~QgsAbstractPropertyCollection();
QString name() const;
%Docstring
Returns the descriptive name of the property collection.
.. seealso:: :py:func:`setName`
%End
void setName( const QString &name );
%Docstring
Sets the descriptive name for the property collection.
.. seealso:: :py:func:`name`
%End
virtual QSet<int> propertyKeys() const = 0;
%Docstring
Returns a list of property keys contained within the collection.
%End
virtual void clear() = 0;
%Docstring
Removes all properties from the collection.
%End
virtual bool hasProperty( int key ) const = 0;
%Docstring
Returns ``True`` if the collection contains a property with the
specified key.
:param key: integer key for property. The intended use case is that a
context specific enum is cast to int and used for the key
value.
.. seealso:: :py:func:`property`
%End
virtual QgsProperty property( int key ) const = 0;
%Docstring
Returns a matching property from the collection, if one exists.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:return: matching property, or null if no matching, active property
found.
.. seealso:: :py:func:`hasProperty`
%End
virtual QVariant value( int key, const QgsExpressionContext &context, const QVariant &defaultValue = QVariant() ) const = 0;
%Docstring
Returns the calculated value of the property with the specified key from
within the collection. If you need the validity of the value (like ok
provided from the valueAs* variants) refer to the
:py:func:`~QgsAbstractPropertyCollection.property` and
:py:func:`QgsProperty.value()`
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: expression context to evaluate property against
:param defaultValue: default value to return if no matching, active
property found or if the property value cannot be
calculated
:return: calculated property value, or default value if property could
not be evaluated
.. seealso:: :py:func:`valueAsString`
.. seealso:: :py:func:`valueAsColor`
.. seealso:: :py:func:`valueAsDouble`
.. seealso:: :py:func:`valueAsInt`
.. seealso:: :py:func:`valueAsBool`
%End
QDateTime valueAsDateTime( int key, const QgsExpressionContext &context, const QDateTime &defaultDateTime = QDateTime(), bool *ok /Out/ = 0 ) const;
%Docstring
Calculates the current value of the property with the specified key and
interprets it as a datetime.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: :py:class:`QgsExpressionContext` to evaluate the
property for.
:param defaultDateTime: default datetime to return if the property
cannot be calculated as a datetime
:return: - value parsed to datetime
- ok: ``True`` if conversion was successful
.. seealso:: :py:func:`value`
.. seealso:: :py:func:`valueAsString`
.. seealso:: :py:func:`valueAsColor`
.. seealso:: :py:func:`valueAsDouble`
.. seealso:: :py:func:`valueAsInt`
.. seealso:: :py:func:`valueAsBool`
.. versionadded:: 3.14
%End
QString valueAsString( int key, const QgsExpressionContext &context, const QString &defaultString = QString(), bool *ok /Out/ = 0 ) const;
%Docstring
Calculates the current value of the property with the specified key and
interprets it as a string.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: :py:class:`QgsExpressionContext` to evaluate the
property for.
:param defaultString: default string to return if the property cannot be
calculated as a string
:return: - value parsed to string
- ok: ``True`` if conversion was successful
.. seealso:: :py:func:`value`
.. seealso:: :py:func:`valueAsDateTime`
.. seealso:: :py:func:`valueAsColor`
.. seealso:: :py:func:`valueAsDouble`
.. seealso:: :py:func:`valueAsInt`
.. seealso:: :py:func:`valueAsBool`
%End
QColor valueAsColor( int key, const QgsExpressionContext &context, const QColor &defaultColor = QColor(), bool *ok /Out/ = 0 ) const;
%Docstring
Calculates the current value of the property with the specified key and
interprets it as a color.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: :py:class:`QgsExpressionContext` to evaluate the
property for.
:param defaultColor: default color to return if the property cannot be
calculated as a color
:return: - value parsed to color
- ok: ``True`` if conversion was successful
.. seealso:: :py:func:`value`
.. seealso:: :py:func:`valueAsDateTime`
.. seealso:: :py:func:`valueAsString`
.. seealso:: :py:func:`valueAsDouble`
.. seealso:: :py:func:`valueAsInt`
.. seealso:: :py:func:`valueAsBool`
%End
double valueAsDouble( int key, const QgsExpressionContext &context, double defaultValue = 0.0, bool *ok /Out/ = 0 ) const;
%Docstring
Calculates the current value of the property with the specified key and
interprets it as a double.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: :py:class:`QgsExpressionContext` to evaluate the
property for.
:param defaultValue: default double to return if the property cannot be
calculated as a double
:return: - value parsed to double
- ok: ``True`` if conversion was successful
.. seealso:: :py:func:`value`
.. seealso:: :py:func:`valueAsDateTime`
.. seealso:: :py:func:`valueAsString`
.. seealso:: :py:func:`valueAsColor`
.. seealso:: :py:func:`valueAsInt`
.. seealso:: :py:func:`valueAsBool`
%End
int valueAsInt( int key, const QgsExpressionContext &context, int defaultValue = 0, bool *ok /Out/ = 0 ) const;
%Docstring
Calculates the current value of the property with the specified key and
interprets it as an integer.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: :py:class:`QgsExpressionContext` to evaluate the
property for.
:param defaultValue: default integer to return if the property cannot be
calculated as a integer
:return: - value parsed to integer
- ok: ``True`` if conversion was successful
.. seealso:: :py:func:`value`
.. seealso:: :py:func:`valueAsDateTime`
.. seealso:: :py:func:`valueAsString`
.. seealso:: :py:func:`valueAsColor`
.. seealso:: :py:func:`valueAsDouble`
.. seealso:: :py:func:`valueAsBool`
%End
bool valueAsBool( int key, const QgsExpressionContext &context, bool defaultValue = false, bool *ok /Out/ = 0 ) const;
%Docstring
Calculates the current value of the property with the specified key and
interprets it as an boolean.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:param context: :py:class:`QgsExpressionContext` to evaluate the
property for.
:param defaultValue: default boolean to return if the property cannot be
calculated as a boolean
:return: - value parsed to bool
- ok: ``True`` if conversion was successful
.. seealso:: :py:func:`value`
.. seealso:: :py:func:`valueAsDateTime`
.. seealso:: :py:func:`valueAsString`
.. seealso:: :py:func:`valueAsColor`
.. seealso:: :py:func:`valueAsDouble`
.. seealso:: :py:func:`valueAsInt`
%End
virtual bool prepare( const QgsExpressionContext &context = QgsExpressionContext() ) const = 0;
%Docstring
Prepares the collection against a specified expression context. Calling
prepare before evaluating the collection's properties multiple times
allows precalculation of expensive setup tasks such as parsing
expressions. Returns ``True`` if preparation was successful.
%End
virtual QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext(), bool ignoreContext = false ) const = 0;
%Docstring
Returns the set of any fields referenced by the active properties from
the collection.
:param context: expression context the properties will be evaluated
against.
:param ignoreContext: This parameter has been added in QGIS 3.14. When
set to ``True``, even fields not set in context's
:py:func:`~QgsAbstractPropertyCollection.fields`
will be reported - this is useful e.g. with vector
tiles where the actual available field names may
not be known beforehand.
%End
virtual bool isActive( int key ) const = 0;
%Docstring
Returns ``True`` if the collection contains an active property with the
specified key.
:param key: integer key for property to test. The intended use case is
that a context specific enum is cast to int and used for the
key value.
%End
virtual bool hasActiveProperties() const = 0;
%Docstring
Returns ``True`` if the collection has any active properties, or
``False`` if all properties within the collection are deactivated.
.. seealso:: :py:func:`hasDynamicProperties`
%End
virtual bool hasDynamicProperties() const = 0;
%Docstring
Returns ``True`` if the collection has any active, non-static
properties, or ``False`` if either all non-static properties within the
collection are deactivated or if the collection only contains static
properties.
.. seealso:: :py:func:`hasActiveProperties`
%End
virtual bool writeXml( QDomElement &collectionElem, const QgsPropertiesDefinition &definitions ) const;
%Docstring
Writes the current state of the property collection into an XML element
:param collectionElem: destination element for the property collection's
state
:param definitions: property definitions
.. seealso:: :py:func:`readXml`
%End
virtual bool readXml( const QDomElement &collectionElem, const QgsPropertiesDefinition &definitions );
%Docstring
Reads property collection state from an XML element.
:param collectionElem: source DOM element for property collection's
state
:param definitions: property definitions
.. seealso:: :py:func:`writeXml`
%End
virtual QVariant toVariant( const QgsPropertiesDefinition &definitions ) const = 0;
%Docstring
Saves this property collection to a QVariantMap, wrapped in a QVariant.
You can use :py:class:`QgsXmlUtils`.writeVariant to save it to an XML
document.
.. seealso:: :py:func:`loadVariant`
%End
virtual bool loadVariant( const QVariant &configuration, const QgsPropertiesDefinition &definitions ) = 0;
%Docstring
Loads this property collection from a QVariantMap, wrapped in a
QVariant. You can use :py:class:`QgsXmlUtils`.readVariant to save it to
an XML document.
.. seealso:: :py:func:`toVariant`
%End
};
class QgsPropertyCollection : QgsAbstractPropertyCollection
{
%Docstring(signature="appended")
A grouped map of multiple :py:class:`QgsProperty` objects, each
referenced by a integer key value.
Properties within a collection are referenced by an integer key. This is
done to avoid the cost of string creation and comparisons which would be
required by a string key. The intended use case is that a context
specific enum is cast to int and used for the key value. Examples of
such enums are :
.. seealso:: :py:func:`QgsLayoutObject.DataDefinedProperty`
.. seealso:: :py:func:`QgsSymbolLayer.Property`
.. seealso:: :py:func:`QgsPalLabeling.Property`
.. seealso:: :py:func:`QgsAbstract3DSymbol.Property`
.. seealso:: :py:func:`QgsDiagramLayerSettings.Property`
.. seealso:: :py:func:`QgsPalLayerSettings.Property`
.. seealso:: :py:func:`QgsWidgetWrapper.Property`
%End
%TypeHeaderCode
#include "qgspropertycollection.h"
%End
public:
QgsPropertyCollection( const QString &name = QString() );
%Docstring
Constructor for QgsPropertyCollection
:param name: collection name
%End
QgsPropertyCollection( const QgsPropertyCollection &other );
bool operator==( const QgsPropertyCollection &other ) const;
bool operator!=( const QgsPropertyCollection &other ) const;
int count() const;
%Docstring
Returns the number of properties contained within the collection.
%End
QSet<int> propertyKeys() const final;
void clear() final;
bool hasProperty( int key ) const final;
virtual QgsProperty &property( int key );
%Docstring
Returns a reference to a matching property from the collection, if one
exists.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:return: matching property, or null if no matching, active property
found.
.. seealso:: :py:func:`hasProperty`
%End
QVariant value( int key, const QgsExpressionContext &context, const QVariant &defaultValue = QVariant() ) const final;
bool prepare( const QgsExpressionContext &context = QgsExpressionContext() ) const final;
QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext(), bool ignoreContext = false ) const final;
bool isActive( int key ) const final;
bool hasActiveProperties() const final;
bool hasDynamicProperties() const final;
QVariant toVariant( const QgsPropertiesDefinition &definitions ) const final;
bool loadVariant( const QVariant &configuration, const QgsPropertiesDefinition &definitions ) final;
void setProperty( int key, const QgsProperty &property );
%Docstring
Adds a property to the collection and takes ownership of it.
:param key: integer key for property. Any existing property with the
same key will be removed and replaced by this property. The
intended use case is that a context specific enum is cast to
int and used for the key value.
:param property: property to add. Ownership is transferred to the
collection. Setting an invalid property will remove the
property from the collection.
%End
void setProperty( int key, const QVariant &value );
%Docstring
Convenience method, creates a :py:class:`QgsStaticProperty` and stores
it within the collection.
:param key: integer key for property. Any existing property with the
same key will be deleted and replaced by this property. The
intended use case is that a context specific enum is cast to
int and used for the key value.
:param value: static value for property
%End
};
class QgsPropertyCollectionStack : QgsAbstractPropertyCollection
{
%Docstring(signature="appended")
An ordered stack of :py:class:`QgsPropertyCollection` containers, where
collections added later to the stack will take priority over earlier
collections.
%End
%TypeHeaderCode
#include "qgspropertycollection.h"
%End
public:
QgsPropertyCollectionStack();
~QgsPropertyCollectionStack();
QgsPropertyCollectionStack( const QgsPropertyCollectionStack &other );
int count() const;
%Docstring
Returns the number of collections contained within the stack.
%End
virtual void clear() ${SIP_FINAL};
%Docstring
Removes all collections from the stack.
%End
void appendCollection( QgsPropertyCollection *collection /Transfer/ );
%Docstring
Appends a collection to the end of the stack, and transfers ownership of
the collection to the stack. Properties from the newly added collection
will take priority over any existing properties with the same name.
:param collection: collection to append. Ownership is transferred to the
stack.
%End
QgsPropertyCollection *at( int index );
%Docstring
Returns the collection at the corresponding index from the stack.
:param index: position of collection, 0 based
:return: collection if one exists at the specified index
%End
QgsPropertyCollection *collection( const QString &name );
%Docstring
Returns the first collection with a matching name from the stack.
:param name: name of collection to find
:return: collection if one exists with the specified name
%End
virtual bool hasActiveProperties() const;
%Docstring
Returns ``True`` if the collection has any active properties, or
``False`` if all properties within the collection are deactivated.
.. seealso:: :py:func:`isActive`
.. seealso:: :py:func:`hasDynamicProperties`
%End
virtual bool hasDynamicProperties() const;
%Docstring
Returns ``True`` if the collection has any active, non-static
properties, or ``False`` if either all non-static properties within the
collection are deactivated or if the collection only contains static
properties.
.. seealso:: :py:func:`hasActiveProperties`
%End
virtual bool isActive( int key ) const;
%Docstring
Returns ``True`` if the stack contains an active property with the
specified key.
:param key: integer key for property to test. The intended use case is
that a context specific enum is cast to int and used for the
key value.
.. seealso:: :py:func:`hasActiveProperties`
%End
virtual QgsProperty property( int key ) const;
%Docstring
Returns the highest priority property with a matching key from within
the stack.
:param key: integer key for property to return. The intended use case is
that a context specific enum is cast to int and used for the
key value.
:return: matching property, or null if no matching, active property
found.
.. seealso:: :py:func:`hasActiveProperty`
%End
virtual QVariant value( int key, const QgsExpressionContext &context, const QVariant &defaultValue = QVariant() ) const;
%Docstring
Returns the calculated value of the highest priority property with the
specified key from within the stack.
:param key: integer key for property to calculate. The intended use case
is that a context specific enum is cast to int and used for
the key value.
:param context: expression context to evaluate property against
:param defaultValue: default value to return if no matching, active
property found or if the property value cannot be
calculated
:return: calculated property value, or default value if property could
not be evaluated
%End
virtual QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext(), bool ignoreContext = false ) const;
%Docstring
Returns the set of any fields referenced by the active properties from
the stack.
:param context: expression context the properties will be evaluated
against.
:param ignoreContext: This parameter has been added in QGIS 3.14. When
set to ``True``, even fields not set in context's
:py:func:`~QgsPropertyCollectionStack.fields` will
be reported - this is useful e.g. with vector
tiles where the actual available field names may
not be known beforehand.
%End
virtual bool prepare( const QgsExpressionContext &context = QgsExpressionContext() ) const;
virtual QSet<int> propertyKeys() const;
virtual bool hasProperty( int key ) const;
virtual QVariant toVariant( const QgsPropertiesDefinition &definitions ) const;
virtual bool loadVariant( const QVariant &collection, const QgsPropertiesDefinition &definitions );
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/qgspropertycollection.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
|