File: qgsdiagramrenderer.sip.in

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/************************************************************************
 * This file has been generated automatically from                      *
 *                                                                      *
 * src/core/qgsdiagramrenderer.h                                        *
 *                                                                      *
 * Do not edit manually ! Edit header and run scripts/sipify.py again   *
 ************************************************************************/







class QgsDiagramLayerSettings
{
%Docstring(signature="appended")
Stores the settings for rendering of all diagrams for a layer.

:py:class:`QgsDiagramSettings` stores the settings related to rendering
the individual diagrams themselves, while
:py:class:`QgsDiagramLayerSettings` stores settings which control how
ALL diagrams within a layer are rendered.
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
  public:

    enum Placement /BaseType=IntEnum/
    {
      AroundPoint,
      OverPoint,
      Line,
      Curved,
      Horizontal,
      Free
    };

    enum LinePlacementFlag /BaseType=IntEnum/
    {
      OnLine,
      AboveLine,
      BelowLine,
      MapOrientation,
    };
    typedef QFlags<QgsDiagramLayerSettings::LinePlacementFlag> LinePlacementFlags;



    enum class Property /BaseType=IntEnum/
      {
      BackgroundColor,
      StrokeColor,
      StrokeWidth,
      PositionX,
      PositionY,
      Distance,
      Priority,
      ZIndex,
      IsObstacle,
      Show,
      AlwaysShow,
      StartAngle,
    };

    enum DiagramType /BaseType=IntEnum/
    {
      Single,
      Stacked
    };

    static const QgsPropertiesDefinition &propertyDefinitions();
%Docstring
Returns the diagram property definitions.
%End

    QgsDiagramLayerSettings();

    QgsDiagramLayerSettings( const QgsDiagramLayerSettings &rh );


    ~QgsDiagramLayerSettings();

    Placement placement() const;
%Docstring
Returns the diagram placement.

.. seealso:: :py:func:`setPlacement`
%End

    void setPlacement( Placement value );
%Docstring
Sets the diagram placement.

:param value: placement value

.. seealso:: :py:func:`placement`
%End

    LinePlacementFlags linePlacementFlags() const;
%Docstring
Returns the diagram placement flags. These are only used if the diagram
placement is set to a line type.

.. seealso:: :py:func:`setLinePlacementFlags`
%End

    void setLinePlacementFlags( LinePlacementFlags flags );
%Docstring
Sets the the diagram placement flags. These are only used if the diagram
placement is set to a line type.

:param flags: placement value

.. seealso:: :py:func:`linePlacementFlags`
%End

    int priority() const;
%Docstring
Returns the diagram priority.

:return: diagram priority, where 0 = low and 10 = high

.. note::

   placement priority is shared with labeling, so diagrams with a high priority may displace labels
   and vice-versa

.. seealso:: :py:func:`setPriority`
%End

    void setPriority( int value );
%Docstring
Sets the diagram priority.

:param value: priority, where 0 = low and 10 = high

.. seealso:: :py:func:`priority`
%End

    double zIndex() const;
%Docstring
Returns the diagram z-index. Diagrams (or labels) with a higher z-index
are drawn over diagrams with a lower z-index.

.. note::

   z-index ordering is shared with labeling, so diagrams with a high z-index may be drawn over labels
   with a low z-index and vice-versa

.. seealso:: :py:func:`setZIndex`
%End

    void setZIndex( double index );
%Docstring
Sets the diagram z-index. Diagrams (or labels) with a higher z-index are
drawn over diagrams with a lower z-index.

:param index: diagram z-index

.. seealso:: :py:func:`zIndex`
%End

    bool isObstacle() const;
%Docstring
Returns whether the feature associated with a diagram acts as an
obstacle for other labels or diagrams.

.. seealso:: :py:func:`setIsObstacle`
%End

    void setIsObstacle( bool isObstacle );
%Docstring
Sets whether the feature associated with a diagram acts as an obstacle
for other labels or diagrams.

:param isObstacle: set to ``True`` for feature to act as obstacle

.. seealso:: :py:func:`isObstacle`
%End

    double distance() const;
%Docstring
Returns the distance between the diagram and the feature (in mm).

.. seealso:: :py:func:`setDistance`
%End

    void setDistance( double distance );
%Docstring
Sets the distance between the diagram and the feature.

:param distance: distance in mm

.. seealso:: :py:func:`distance`
%End

    QgsDiagramRenderer *renderer();
%Docstring
Returns the diagram renderer associated with the layer.

.. seealso:: :py:func:`setRenderer`
%End


    void setRenderer( QgsDiagramRenderer *diagramRenderer /Transfer/ );
%Docstring
Sets the diagram renderer associated with the layer.

:param diagramRenderer: diagram renderer. Ownership is transferred to
                        the object.

.. seealso:: :py:func:`renderer`
%End

    QgsCoordinateTransform coordinateTransform() const;
%Docstring
Returns the coordinate transform associated with the layer, or an
invalid transform if no transformation is required.

.. seealso:: :py:func:`setCoordinateTransform`
%End

    void setCoordinateTransform( const QgsCoordinateTransform &transform );
%Docstring
Sets the coordinate transform associated with the layer.

:param transform: coordinate transform. Ownership is transferred to the
                  object.

.. seealso:: :py:func:`coordinateTransform`
%End

    bool showAllDiagrams() const;
%Docstring
Returns whether the layer should show all diagrams, including
overlapping diagrams

.. seealso:: :py:func:`setShowAllDiagrams`
%End

    void setShowAllDiagrams( bool showAllDiagrams );
%Docstring
Sets whether the layer should show all diagrams, including overlapping
diagrams

:param showAllDiagrams: set to ``True`` to show all diagrams

.. seealso:: :py:func:`showAllDiagrams`
%End

    void readXml( const QDomElement &elem );
%Docstring
Reads the diagram settings from a DOM element.

.. seealso:: :py:func:`writeXml`
%End

    void writeXml( QDomElement &layerElem, QDomDocument &doc ) const;
%Docstring
Writes the diagram settings to a DOM element.

.. seealso:: :py:func:`readXml`
%End

    bool prepare( const QgsExpressionContext &context = QgsExpressionContext() ) const;
%Docstring
Prepares the diagrams for a specified expression context. Calling
prepare before rendering multiple diagrams allows precalculation of
expensive setup tasks such as parsing expressions. Returns ``True`` if
preparation was successful.
%End

    QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext() ) const;
%Docstring
Returns the set of any fields referenced by the layer's diagrams.

:param context: expression context the diagrams will be drawn using
%End

    QgsPropertyCollection &dataDefinedProperties();
%Docstring
Returns a reference to the diagram's property collection, used for data
defined overrides.

.. seealso:: :py:func:`setDataDefinedProperties`
%End


    void setDataDefinedProperties( const QgsPropertyCollection &collection );
%Docstring
Sets the diagram's property collection, used for data defined overrides.

:param collection: property collection. Existing properties will be
                   replaced.

.. seealso:: :py:func:`dataDefinedProperties`

.. seealso:: Property
%End

};


class QgsDiagramSettings
{
%Docstring(signature="appended")
Stores the settings for rendering a single diagram.

:py:class:`QgsDiagramSettings` stores the settings related to rendering
the individual diagrams themselves, while
:py:class:`QgsDiagramLayerSettings` stores settings which control how
ALL diagrams within a layer are rendered.
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
  public:

    enum LabelPlacementMethod /BaseType=IntEnum/
    {
      Height,
      XHeight
    };

    enum DiagramOrientation /BaseType=IntEnum/
    {
      Up,
      Down,
      Left,
      Right
    };

    enum Direction /BaseType=IntEnum/
    {
      Clockwise,
      Counterclockwise,
    };

    enum StackedDiagramMode /BaseType=IntEnum/
    {
      Horizontal,
      Vertical
    };

    QgsDiagramSettings();
    ~QgsDiagramSettings();
    QgsDiagramSettings( const QgsDiagramSettings &other );


    bool enabled;
    QFont font;
    QList< QColor > categoryColors;
    QList< QString > categoryAttributes;
    QList< QString > categoryLabels;
    QSizeF size; //size

    Qgis::RenderUnit sizeType;

    QgsMapUnitScale sizeScale;

    Qgis::RenderUnit lineSizeUnit;

    QgsMapUnitScale lineSizeScale;

    QColor backgroundColor;
    QColor penColor;
    double penWidth;
    LabelPlacementMethod labelPlacementMethod;
    DiagramOrientation diagramOrientation;
    StackedDiagramMode stackedDiagramMode;
    double barWidth;

    double opacity;

    bool scaleByArea;

    double rotationOffset;

    bool scaleBasedVisibility;

    double maximumScale;

    double minimumScale;

    double minimumSize;

    double spacing() const;
%Docstring
Returns the spacing between diagram contents.

Spacing units can be retrieved by calling
:py:func:`~QgsDiagramSettings.spacingUnit`.

.. seealso:: :py:func:`setSpacing`

.. seealso:: :py:func:`spacingUnit`

.. seealso:: :py:func:`spacingMapUnitScale`

.. versionadded:: 3.12
%End

    void setSpacing( double spacing );
%Docstring
Sets the ``spacing`` between diagram contents.

Spacing units are set via :py:func:`~QgsDiagramSettings.setSpacingUnit`.

.. seealso:: :py:func:`spacing`

.. seealso:: :py:func:`setSpacingUnit`

.. seealso:: :py:func:`setSpacingMapUnitScale`

.. versionadded:: 3.12
%End

    void setSpacingUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the content spacing.

.. seealso:: :py:func:`spacingUnit`

.. seealso:: :py:func:`setSpacing`

.. seealso:: :py:func:`setSpacingMapUnitScale`

.. versionadded:: 3.12
%End

    Qgis::RenderUnit spacingUnit() const;
%Docstring
Returns the units for the content spacing.

.. seealso:: :py:func:`setSpacingUnit`

.. seealso:: :py:func:`spacing`

.. seealso:: :py:func:`spacingMapUnitScale`

.. versionadded:: 3.12
%End

    void setSpacingMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the content spacing.

.. seealso:: :py:func:`spacingMapUnitScale`

.. seealso:: :py:func:`setSpacing`

.. seealso:: :py:func:`setSpacingUnit`

.. versionadded:: 3.12
%End

    const QgsMapUnitScale &spacingMapUnitScale() const;
%Docstring
Returns the map unit scale for the content spacing.

.. seealso:: :py:func:`setSpacingMapUnitScale`

.. seealso:: :py:func:`spacing`

.. seealso:: :py:func:`spacingUnit`

.. versionadded:: 3.12
%End

    double stackedDiagramSpacing() const;
%Docstring
Returns the spacing between subdiagrams in a stacked diagram.

Spacing units can be retrieved by calling
:py:func:`~QgsDiagramSettings.stackedDiagramSpacingUnit`.

.. seealso:: :py:func:`setStackedDiagramSpacing`

.. seealso:: :py:func:`stackedDiagramSpacingUnit`

.. seealso:: :py:func:`stackedDiagramSpacingMapUnitScale`

.. versionadded:: 3.40
%End

    void setStackedDiagramSpacing( double spacing );
%Docstring
Sets the ``spacing`` between subdiagrams in a stacked diagram.

Spacing units are set via
:py:func:`~QgsDiagramSettings.setStackedDiagramSpacingUnit`.

.. seealso:: :py:func:`stackedDiagramSpacing`

.. seealso:: :py:func:`setStackedDiagramSpacingUnit`

.. seealso:: :py:func:`setStackedDiagramSpacingMapUnitScale`

.. versionadded:: 3.40
%End

    void setStackedDiagramSpacingUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the spacing between subdiagrams in a stacked
diagram.

.. seealso:: :py:func:`stackedDiagramSpacingUnit`

.. seealso:: :py:func:`setStackedDiagramSpacing`

.. seealso:: :py:func:`setStackedDiagramSpacingMapUnitScale`

.. versionadded:: 3.40
%End

    Qgis::RenderUnit stackedDiagramSpacingUnit() const;
%Docstring
Returns the units for the spacing between subdiagrams in a stacked
diagram.

.. seealso:: :py:func:`setStackedDiagramSpacingUnit`

.. seealso:: :py:func:`stackedDiagramSpacing`

.. seealso:: :py:func:`stackedDiagramSpacingMapUnitScale`

.. versionadded:: 3.40
%End

    void setStackedDiagramSpacingMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the spacing between subdiagrams in a
stacked diagram.

.. seealso:: :py:func:`stackedDiagramSpacingMapUnitScale`

.. seealso:: :py:func:`setStackedDiagramSpacing`

.. seealso:: :py:func:`setStackedDiagramSpacingUnit`

.. versionadded:: 3.40
%End

    const QgsMapUnitScale &stackedDiagramSpacingMapUnitScale() const;
%Docstring
Returns the map unit scale for the spacing between subdiagrams in a
stacked diagram.

.. seealso:: :py:func:`setStackedDiagramSpacingMapUnitScale` ;

.. seealso:: :py:func:`stackedDiagramSpacing`

.. seealso:: :py:func:`stackedDiagramSpacingUnit`

.. versionadded:: 3.40
%End

    Direction direction() const;
%Docstring
Returns the chart's angular direction.

.. seealso:: :py:func:`setDirection`

.. versionadded:: 3.12
%End

    void setDirection( Direction direction );
%Docstring
Sets the chart's angular ``direction``.

.. seealso:: :py:func:`direction`

.. versionadded:: 3.12
%End

    void readXml( const QDomElement &elem, const QgsReadWriteContext &context = QgsReadWriteContext() );
%Docstring
Reads diagram settings from XML
%End
    void writeXml( QDomElement &rendererElem, QDomDocument &doc, const QgsReadWriteContext &context = QgsReadWriteContext() ) const;
%Docstring
Writes diagram settings to XML
%End

    QList< QgsLayerTreeModelLegendNode * > legendItems( QgsLayerTreeLayer *nodeLayer ) const /Factory/;
%Docstring
Returns list of legend nodes for the diagram

.. note::

   caller is responsible for deletion of :py:class:`QgsLayerTreeModelLegendNodes`
%End

    QgsLineSymbol *axisLineSymbol() const;
%Docstring
Returns the line symbol to use for rendering axis in diagrams.

.. seealso:: :py:func:`setAxisLineSymbol`

.. seealso:: :py:func:`showAxis`

.. versionadded:: 3.12
%End

    void setAxisLineSymbol( QgsLineSymbol *symbol /Transfer/ );
%Docstring
Sets the line ``symbol`` to use for rendering axis in diagrams.

Ownership of ``symbol`` is transferred to the settings.

.. seealso:: :py:func:`axisLineSymbol`

.. seealso:: :py:func:`setShowAxis`

.. versionadded:: 3.12
%End

    bool showAxis() const;
%Docstring
Returns ``True`` if the diagram axis should be shown.

.. seealso:: :py:func:`setShowAxis`

.. seealso:: :py:func:`axisLineSymbol`

.. versionadded:: 3.12
%End

    void setShowAxis( bool showAxis );
%Docstring
Sets whether the diagram axis should be shown.

.. seealso:: :py:func:`showAxis`

.. seealso:: :py:func:`setAxisLineSymbol`

.. versionadded:: 3.12
%End

    QgsPaintEffect *paintEffect() const;
%Docstring
Returns the paint effect to use while rendering diagrams.

.. seealso:: :py:func:`setPaintEffect`

.. versionadded:: 3.12
%End

    void setPaintEffect( QgsPaintEffect *effect /Transfer/ );
%Docstring
Sets the paint ``effect`` to use while rendering diagrams.

Ownership of ``effect`` is transferred to the settings.

.. seealso:: :py:func:`paintEffect`

.. versionadded:: 3.12
%End

};

class QgsDiagramInterpolationSettings
{
%Docstring(signature="appended")
Additional diagram settings for interpolated size rendering.
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
  public:
    QSizeF lowerSize;
    QSizeF upperSize;
    double lowerValue;
    double upperValue;

    QString classificationField;

    QString classificationAttributeExpression;
    bool classificationAttributeIsExpression;
};



class QgsDiagramRenderer
{
%Docstring(signature="appended")
Evaluates and returns the diagram settings relating to a diagram for a
specific feature.
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
%ConvertToSubClassCode
    if ( sipCpp->rendererName() == QLatin1String( "SingleCategory" ) )
      sipType = sipType_QgsSingleCategoryDiagramRenderer;
    else if ( sipCpp->rendererName() == QLatin1String( "LinearlyInterpolated" ) )
      sipType = sipType_QgsLinearlyInterpolatedDiagramRenderer;
    else if ( sipCpp->rendererName() == QLatin1String( "Stacked" ) )
      sipType = sipType_QgsStackedDiagramRenderer;
    else
      sipType = NULL;
%End
  public:

    QgsDiagramRenderer();
    virtual ~QgsDiagramRenderer();

    virtual QgsDiagramRenderer *clone() const = 0 /Factory/;
%Docstring
Returns new instance that is equivalent to this one
%End

    virtual QSizeF sizeMapUnits( const QgsFeature &feature, const QgsRenderContext &c ) const;
%Docstring
Returns size of the diagram for a feature in map units. Returns an
invalid QSizeF in case of error
%End

    virtual QString rendererName() const = 0;

    virtual QList<QString> diagramAttributes() const = 0;
%Docstring
Returns attribute indices needed for diagram rendering
%End

    virtual QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext() ) const;
%Docstring
Returns the set of any fields required for diagram rendering

:param context: expression context the diagrams will be drawn using
%End

    virtual void renderDiagram( const QgsFeature &feature, QgsRenderContext &c, QPointF pos, const QgsPropertyCollection &properties = QgsPropertyCollection() ) const;
%Docstring
Renders the diagram for a specified feature at a specific position in
the passed render context.
%End

    void setDiagram( QgsDiagram *d /Transfer/ );
    QgsDiagram *diagram() const;

    virtual QList<QgsDiagramSettings> diagramSettings() const = 0;
%Docstring
Returns list with all diagram settings in the renderer
%End

    virtual void readXml( const QDomElement &elem, const QgsReadWriteContext &context ) = 0;
%Docstring
Reads diagram state from a DOM element. Subclasses should ensure that
_readXml() is called by their readXml implementation to restore the
general QgsDiagramRenderer settings.

.. seealso:: :py:func:`writeXml`
%End

    virtual void writeXml( QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context ) const = 0;
%Docstring
Writes diagram state to a DOM element. Subclasses should ensure that
_writeXml() is called by their writeXml implementation to save the
general QgsDiagramRenderer settings.

.. seealso:: :py:func:`readXml`
%End

    virtual QList< QgsLayerTreeModelLegendNode * > legendItems( QgsLayerTreeLayer *nodeLayer ) const /Factory/;
%Docstring
Returns list of legend nodes for the diagram

.. note::

   caller is responsible for deletion of :py:class:`QgsLayerTreeModelLegendNodes`
%End

    bool attributeLegend() const;
%Docstring
Returns ``True`` if renderer will show legend items for diagram
attributes.

.. seealso:: :py:func:`setAttributeLegend`
%End

    void setAttributeLegend( bool enabled );
%Docstring
Sets whether the renderer will show legend items for diagram attributes.

:param enabled: set to ``True`` to show diagram attribute legend

.. seealso:: :py:func:`attributeLegend`
%End

  protected:
    QgsDiagramRenderer( const QgsDiagramRenderer &other );

    virtual bool diagramSettings( const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s ) const = 0;
%Docstring
Returns diagram settings for a feature (or ``False`` if the diagram for
the feature is not to be rendered). Used internally within
:py:func:`~QgsDiagramRenderer.renderDiagram`

:param feature: the feature
:param c: render context
:param s: out: diagram settings for the feature
%End

    virtual QSizeF diagramSize( const QgsFeature &feature, const QgsRenderContext &c ) const = 0;
%Docstring
Returns size of the diagram (in painter units) or an invalid size in
case of error

:param feature: the feature
:param c: render context
%End

    void convertSizeToMapUnits( QSizeF &size, const QgsRenderContext &context ) const;
%Docstring
Converts size from mm to map units
%End

    static int dpiPaintDevice( const QPainter * );
%Docstring
Returns the paint device dpi (or -1 in case of error
%End


    void _readXml( const QDomElement &elem, const QgsReadWriteContext &context );
%Docstring
Reads internal QgsDiagramRenderer state from a DOM element.

.. seealso:: _writeXml
%End

    void _writeXml( QDomElement &rendererElem, QDomDocument &doc, const QgsReadWriteContext &context ) const;
%Docstring
Writes internal QgsDiagramRenderer diagram state to a DOM element.

.. seealso:: _readXml
%End



};

class QgsSingleCategoryDiagramRenderer : QgsDiagramRenderer
{
%Docstring(signature="appended")
Renders the diagrams for all features with the same settings
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
  public:

    QgsSingleCategoryDiagramRenderer();

    virtual QgsSingleCategoryDiagramRenderer *clone() const /Factory/;


    virtual QString rendererName() const;

    virtual QList<QString> diagramAttributes() const;

    void setDiagramSettings( const QgsDiagramSettings &s );

    virtual QList<QgsDiagramSettings> diagramSettings() const;


    virtual void readXml( const QDomElement &elem, const QgsReadWriteContext &context );

    virtual void writeXml( QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context ) const;


    virtual QList< QgsLayerTreeModelLegendNode * > legendItems( QgsLayerTreeLayer *nodeLayer ) const /Factory/;


  protected:
    virtual bool diagramSettings( const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s ) const;


    virtual QSizeF diagramSize( const QgsFeature &, const QgsRenderContext &c ) const;


};

class QgsLinearlyInterpolatedDiagramRenderer : QgsDiagramRenderer
{
%Docstring(signature="appended")
Alters the size of rendered diagrams using a linear scaling.
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
  public:

    QgsLinearlyInterpolatedDiagramRenderer();
    ~QgsLinearlyInterpolatedDiagramRenderer();
    QgsLinearlyInterpolatedDiagramRenderer( const QgsLinearlyInterpolatedDiagramRenderer &other );


    virtual QgsLinearlyInterpolatedDiagramRenderer *clone() const /Factory/;


    virtual QList<QgsDiagramSettings> diagramSettings() const;

%Docstring
Returns list with all diagram settings in the renderer
%End

    void setDiagramSettings( const QgsDiagramSettings &s );

    virtual QList<QString> diagramAttributes() const;


    virtual QSet< QString > referencedFields( const QgsExpressionContext &context = QgsExpressionContext() ) const;


    virtual QString rendererName() const;

    void setLowerValue( double val );
    double lowerValue() const;

    void setUpperValue( double val );
    double upperValue() const;

    void setLowerSize( QSizeF s );
    QSizeF lowerSize() const;

    void setUpperSize( QSizeF s );
    QSizeF upperSize() const;

    QString classificationField() const;
%Docstring
Returns the field name used for interpolating the diagram size.

.. seealso:: :py:func:`setClassificationField`
%End

    void setClassificationField( const QString &field );
%Docstring
Sets the field name used for interpolating the diagram size.

.. seealso:: :py:func:`classificationField`
%End

    QString classificationAttributeExpression() const;
    void setClassificationAttributeExpression( const QString &expression );

    bool classificationAttributeIsExpression() const;
    void setClassificationAttributeIsExpression( bool isExpression );

    virtual void readXml( const QDomElement &elem, const QgsReadWriteContext &context );

    virtual void writeXml( QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context ) const;


    virtual QList< QgsLayerTreeModelLegendNode * > legendItems( QgsLayerTreeLayer *nodeLayer ) const /Factory/;


    void setDataDefinedSizeLegend( QgsDataDefinedSizeLegend *settings /Transfer/ );
%Docstring
Configures appearance of legend. Takes ownership of the passed settings
objects.
%End

    QgsDataDefinedSizeLegend *dataDefinedSizeLegend() const;
%Docstring
Returns configuration of appearance of legend. Will return ``None`` if
no configuration has been set.
%End

  protected:
    virtual bool diagramSettings( const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s ) const;


    virtual QSizeF diagramSize( const QgsFeature &, const QgsRenderContext &c ) const;


};

class QgsStackedDiagramRenderer : QgsDiagramRenderer
{
%Docstring(signature="appended")
Renders diagrams using mixed diagram render types. The size of the
rendered diagram is given by a combination of subrenderers.

.. versionadded:: 3.40
%End

%TypeHeaderCode
#include "qgsdiagramrenderer.h"
%End
  public:

    QgsStackedDiagramRenderer();
    ~QgsStackedDiagramRenderer();

    QgsStackedDiagramRenderer( const QgsStackedDiagramRenderer &other );


    virtual QgsStackedDiagramRenderer *clone() const /Factory/;


    virtual QSizeF sizeMapUnits( const QgsFeature &feature, const QgsRenderContext &c ) const;
%Docstring
Returns size of the diagram for a feature in map units. Returns an
invalid QSizeF in case of error
%End

    virtual void renderDiagram( const QgsFeature &feature, QgsRenderContext &c, QPointF pos, const QgsPropertyCollection &properties = QgsPropertyCollection() ) const;
%Docstring
Renders the diagram for a specified feature at a specific position in
the passed render context, taking all renderers and their own diagrams
into account. Diagram rendering is delegated to renderer's diagram.
%End

    virtual QList<QgsDiagramSettings> diagramSettings() const;

%Docstring
Returns list with all diagram settings in the renderer
%End

    void setDiagramSettings( const QgsDiagramSettings &s );

    virtual QList<QString> diagramAttributes() const;


    virtual QString rendererName() const;

    virtual void readXml( const QDomElement &elem, const QgsReadWriteContext &context );

    virtual void writeXml( QDomElement &layerElem, QDomDocument &doc, const QgsReadWriteContext &context ) const;


    void _readXmlSubRenderers( const QDomElement &elem, const QgsReadWriteContext &context );
%Docstring
Reads stacked renderers state from a DOM element.

.. seealso:: _writeXmlSubRenderers
%End

    void _writeXmlSubRenderers( QDomElement &rendererElem, QDomDocument &doc, const QgsReadWriteContext &context ) const;
%Docstring
Writes stacked renderers state to a DOM element.

.. seealso:: _readXmlSubRenderers
%End

    virtual QList< QgsLayerTreeModelLegendNode * > legendItems( QgsLayerTreeLayer *nodeLayer ) const /Factory/;


    QList< QgsDiagramRenderer * > renderers( bool sortByDiagramMode = false ) const;
%Docstring
Returns an ordered list with the renderers of the stacked renderer
object. Does not transfer ownership.

:param sortByDiagramMode: If true, the list is returned backwards for
                          vertical orientation.
%End

    void addRenderer( QgsDiagramRenderer *renderer /Transfer/ );
%Docstring
Adds a renderer to the stacked renderer object. Takes ownership.

Renderers added first will render their diagrams first, i.e., more to
the left (horizontal mode) or more to the top (vertical mode).

:param renderer: diagram renderer to be added to the stacked renderer
%End

    const QgsDiagramRenderer *renderer( const int index ) const;
%Docstring
Returns the renderer at the given ``index``. Does not transfer
ownership.

:param index: index of the desired renderer in the stacked renderer
%End

    int rendererCount() const;
%Docstring
Returns the number of sub renderers in the stacked diagram renderer
%End

  protected:
    virtual bool diagramSettings( const QgsFeature &feature, const QgsRenderContext &c, QgsDiagramSettings &s ) const;

    virtual QSizeF diagramSize( const QgsFeature &, const QgsRenderContext &c ) const;


};


/************************************************************************
 * This file has been generated automatically from                      *
 *                                                                      *
 * src/core/qgsdiagramrenderer.h                                        *
 *                                                                      *
 * Do not edit manually ! Edit header and run scripts/sipify.py again   *
 ************************************************************************/