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/************************************************************************
* This file has been generated automatically from *
* *
* src/core/callouts/qgscallout.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
class QgsCallout
{
%Docstring(signature="appended")
Abstract base class for callout renderers.
Implementations of :py:class:`QgsCallout` are responsible for performing
the actual render of callouts, including determining the desired shape
of the callout and using any relevant symbology elements to render them.
.. versionadded:: 3.10
%End
%TypeHeaderCode
#include "qgscallout.h"
%End
%ConvertToSubClassCode
if ( sipCpp->type() == "simple" && dynamic_cast<QgsSimpleLineCallout *>( sipCpp ) != NULL )
{
sipType = sipType_QgsSimpleLineCallout;
}
else if ( sipCpp->type() == "manhattan" && dynamic_cast<QgsManhattanLineCallout *>( sipCpp ) != NULL )
{
sipType = sipType_QgsManhattanLineCallout;
}
else if ( sipCpp->type() == "curved" && dynamic_cast<QgsCurvedLineCallout *>( sipCpp ) != NULL )
{
sipType = sipType_QgsCurvedLineCallout;
}
else if ( sipCpp->type() == "balloon" && dynamic_cast<QgsBalloonCallout *>( sipCpp ) != NULL )
{
sipType = sipType_QgsBalloonCallout;
}
else
{
sipType = 0;
}
%End
public:
enum class Property /BaseType=IntEnum/
{
MinimumCalloutLength,
OffsetFromAnchor,
OffsetFromLabel,
DrawCalloutToAllParts,
AnchorPointPosition,
LabelAnchorPointPosition,
OriginX,
OriginY,
DestinationX,
DestinationY,
Curvature,
Orientation,
Margins,
WedgeWidth,
CornerRadius,
BlendMode,
};
enum DrawOrder /BaseType=IntEnum/
{
OrderBelowAllLabels,
OrderBelowIndividualLabels,
};
enum AnchorPoint /BaseType=IntEnum/
{
PoleOfInaccessibility,
PointOnExterior,
PointOnSurface,
Centroid,
};
enum LabelAnchorPoint /BaseType=IntEnum/
{
LabelPointOnExterior,
LabelCentroid,
LabelTopLeft,
LabelTopMiddle,
LabelTopRight,
LabelMiddleLeft,
LabelMiddleRight,
LabelBottomLeft,
LabelBottomMiddle,
LabelBottomRight,
};
QgsCallout();
%Docstring
Constructor for QgsCallout.
%End
virtual ~QgsCallout();
virtual QString type() const = 0;
%Docstring
Returns a unique string representing the callout type.
%End
virtual QgsCallout *clone() const = 0 /Factory/;
%Docstring
Duplicates a callout by creating a deep copy of the callout.
Caller takes ownership of the returned object.
%End
virtual QVariantMap properties( const QgsReadWriteContext &context ) const;
%Docstring
Returns the properties describing the callout encoded in a string
format.
Subclasses must ensure that they include the base class'
:py:func:`~QgsCallout.properties` in their returned value.
.. seealso:: :py:func:`readProperties`
.. seealso:: :py:func:`saveProperties`
%End
virtual void readProperties( const QVariantMap &props, const QgsReadWriteContext &context );
%Docstring
Reads a string map of an callout's properties and restores the callout
to the state described by the properties map.
Subclasses must ensure that they call the base class'
:py:func:`~QgsCallout.readProperties` method.
.. seealso:: :py:func:`properties`
%End
virtual bool saveProperties( QDomDocument &doc, QDomElement &element, const QgsReadWriteContext &context ) const;
%Docstring
Saves the current state of the callout to a DOM ``element``. The default
behavior is to save the properties string map returned by
:py:func:`~QgsCallout.properties`.
:return: ``True`` if save was successful
.. seealso:: :py:func:`readProperties`
%End
virtual void restoreProperties( const QDomElement &element, const QgsReadWriteContext &context );
%Docstring
Restores the callout's properties from a DOM element.
The default behavior is the read the DOM contents and call
:py:func:`~QgsCallout.readProperties` on the subclass.
.. seealso:: :py:func:`readProperties`
%End
bool containsAdvancedEffects() const;
%Docstring
Returns ``True`` if the callout requires advanced effects such as blend
modes, which require output in raster formats to be fully respected.
.. versionadded:: 3.20
%End
virtual void startRender( QgsRenderContext &context );
%Docstring
Prepares the callout for rendering on the specified render ``context``.
.. warning::
This MUST be called prior to calling :py:func:`~QgsCallout.render` on the callout, and must always
be accompanied by a corresponding call to :py:func:`~QgsCallout.stopRender`.
.. seealso:: :py:func:`stopRender`
%End
virtual void stopRender( QgsRenderContext &context );
%Docstring
Finalises the callout after a set of rendering operations on the
specified render ``context``.
.. warning::
This MUST be called after to after :py:func:`~QgsCallout.render` operations on the callout, and must always
be accompanied by a corresponding prior call to :py:func:`~QgsCallout.startRender`.
.. seealso:: :py:func:`startRender`
%End
virtual QSet< QString > referencedFields( const QgsRenderContext &context ) const;
%Docstring
Returns the set of attributes referenced by the callout. This includes
attributes required by any data defined properties associated with the
callout.
.. warning::
This must only be called after a corresponding call to :py:func:`~QgsCallout.startRender` with
the same render ``context``.
%End
virtual DrawOrder drawOrder() const;
%Docstring
Returns the desired drawing order (stacking) to use while rendering this
callout.
The default order is QgsCallout.OrderBelowIndividualLabels.
%End
class QgsCalloutContext
{
%Docstring(signature="appended")
Contains additional contextual information about the context in which a
callout is being rendered.
.. versionadded:: 3.10
%End
%TypeHeaderCode
#include "qgscallout.h"
%End
public:
bool allFeaturePartsLabeled;
QgsCoordinateReferenceSystem originalFeatureCrs;
QgsCoordinateTransform originalFeatureToMapTransform( const QgsRenderContext &renderContext ) const;
%Docstring
Returns the coordinate transform to convert from the original layer
associated with the callout to the destination map CRS.
.. versionadded:: 3.20
%End
void addCalloutPosition( const QgsCalloutPosition &position );
%Docstring
Adds a rendered callout position.
The position details such as the callout line origin and destination
should be populated by the callout subclass during rendering operations.
.. note::
the feature ID, layer ID and provider ID of the :py:class:`QgsCalloutPosition` will be automatically populated.
.. versionadded:: 3.20
%End
QList< QgsCalloutPosition > positions() const;
%Docstring
Returns the list of rendered callout positions.
.. versionadded:: 3.20
%End
};
void render( QgsRenderContext &context, const QRectF &rect, const double angle, const QgsGeometry &anchor, QgsCalloutContext &calloutContext );
%Docstring
Renders the callout onto the specified render ``context``.
The ``rect`` argument gives the desired size and position of the body of
the callout (e.g. the actual label geometry). The ``angle`` argument
specifies the rotation of the callout body (in degrees clockwise from
horizontal). It is assumed that angle rotation specified via ``angle``
is applied around the center of ``rect``.
The ``anchor`` argument dictates the geometry which the callout should
connect to. Depending on the callout subclass and anchor geometry type,
the actual shape of the rendered callout may vary. E.g. a subclass may
prefer to attach to the centroid of the ``anchor``, while another
subclass may prefer to attach to the closest point on ``anchor``
instead.
Both ``rect`` and ``anchor`` must be specified in painter coordinates
(i.e. pixels).
The ``calloutContext`` argument is used to specify additional contextual
information about how a callout is being rendered.
.. warning::
A prior call to :py:func:`~QgsCallout.startRender` must have been made before calling this method, and
after all :py:func:`~QgsCallout.render` operations are complete a call to :py:func:`~QgsCallout.stopRender` must be made.
%End
bool enabled() const;
%Docstring
Returns ``True`` if the the callout is enabled.
.. seealso:: :py:func:`setEnabled`
%End
void setEnabled( bool enabled );
%Docstring
Sets whether the callout is ``enabled``.
.. seealso:: :py:func:`enabled`
%End
QgsPropertyCollection &dataDefinedProperties();
%Docstring
Returns a reference to the callout's property collection, used for data
defined overrides.
.. seealso:: :py:func:`setDataDefinedProperties`
%End
void setDataDefinedProperties( const QgsPropertyCollection &collection );
%Docstring
Sets the callout's property ``collection``, used for data defined
overrides.
Any existing properties will be discarded.
.. seealso:: :py:func:`dataDefinedProperties`
.. seealso:: Property
%End
static QgsPropertiesDefinition propertyDefinitions();
%Docstring
Returns the definitions for data defined properties available for use in
callouts.
%End
AnchorPoint anchorPoint() const;
%Docstring
Returns the feature's anchor point position.
.. seealso:: :py:func:`setAnchorPoint`
%End
void setAnchorPoint( AnchorPoint anchor );
%Docstring
Sets the feature's ``anchor`` point position.
.. seealso:: :py:func:`anchorPoint`
%End
static QString encodeAnchorPoint( AnchorPoint anchor );
%Docstring
Encodes an ``anchor`` point to its string representation.
:return: encoded string
.. seealso:: :py:func:`decodeAnchorPoint`
%End
static QgsCallout::AnchorPoint decodeAnchorPoint( const QString &name, bool *ok = 0 );
%Docstring
Attempts to decode a string representation of an anchor point name to
the corresponding anchor point.
:param name: encoded anchor point name
:param ok: if specified, will be set to ``True`` if the anchor point was
successfully decoded
:return: decoded name
.. seealso:: :py:func:`encodeAnchorPoint`
%End
LabelAnchorPoint labelAnchorPoint() const;
%Docstring
Returns the label's anchor point position.
.. seealso:: :py:func:`setLabelAnchorPoint`
.. versionadded:: 3.14
%End
void setLabelAnchorPoint( LabelAnchorPoint anchor );
%Docstring
Sets the label's ``anchor`` point position.
.. seealso:: :py:func:`labelAnchorPoint`
.. versionadded:: 3.14
%End
static QString encodeLabelAnchorPoint( LabelAnchorPoint anchor );
%Docstring
Encodes a label ``anchor`` point to its string representation.
:return: encoded string
.. seealso:: :py:func:`decodeLabelAnchorPoint`
.. versionadded:: 3.14
%End
static QgsCallout::LabelAnchorPoint decodeLabelAnchorPoint( const QString &name, bool *ok = 0 );
%Docstring
Attempts to decode a string representation of a label anchor point name
to the corresponding anchor point.
:param name: encoded label anchor point name
:param ok: if specified, will be set to ``True`` if the anchor point was
successfully decoded
:return: decoded name
.. seealso:: :py:func:`encodeLabelAnchorPoint`
.. versionadded:: 3.14
%End
QPainter::CompositionMode blendMode() const;
%Docstring
Returns the blending mode used for drawing callouts.
.. seealso:: :py:func:`setBlendMode`
.. versionadded:: 3.20
%End
void setBlendMode( QPainter::CompositionMode mode );
%Docstring
Sets the blending ``mode`` used for drawing callouts.
.. seealso:: :py:func:`blendMode`
.. versionadded:: 3.20
%End
protected:
virtual void draw( QgsRenderContext &context, const QRectF &bodyBoundingBox, const double angle, const QgsGeometry &anchor, QgsCalloutContext &calloutContext ) = 0;
%Docstring
Performs the actual rendering of the callout implementation onto the
specified render ``context``.
The ``bodyBoundingBox`` argument gives the desired size and position of
the body of the callout (e.g. the actual label geometry). The ``angle``
argument specifies the rotation of the callout body (in degrees
clockwise from horizontal). It is assumed that angle rotation specified
via ``angle`` is applied around the center of ``rect``.
The ``anchor`` argument dictates the geometry which the callout should
connect to. Depending on the callout subclass and anchor geometry type,
the actual shape of the rendered callout may vary. E.g. a subclass may
prefer to attach to the centroid of the ``anchor``, while another
subclass may prefer to attach to the closest point on ``anchor``
instead.
Both ``rect`` and ``anchor`` are specified in painter coordinates (i.e.
pixels).
The ``calloutContext`` argument is used to specify additional contextual
information about how a callout is being rendered.
%End
QgsGeometry labelAnchorGeometry( const QRectF &bodyBoundingBox, const double angle, LabelAnchorPoint anchor ) const /Deprecated/;
%Docstring
Returns the anchor point geometry for a label with the given bounding
box and ``anchor`` point mode.
.. deprecated:: 3.20
Use :py:func:`~QgsCallout.calloutLabelPoint` instead.
%End
QgsGeometry calloutLabelPoint( const QRectF &bodyBoundingBox, double angle, LabelAnchorPoint anchor, QgsRenderContext &context, const QgsCalloutContext &calloutContext, bool &pinned ) const;
%Docstring
Returns the anchor point geometry for a label with the given bounding
box and ``anchor`` point mode.
The ``pinned`` argument will be set to ``True`` if the callout label
point is pinned (manually placed).
.. versionadded:: 3.20
%End
QgsGeometry calloutLineToPart( const QgsGeometry &labelGeometry, const QgsAbstractGeometry *partGeometry, QgsRenderContext &context, const QgsCalloutContext &calloutContext, bool &pinned ) const;
%Docstring
Calculates the direct line from a label geometry to an anchor geometry
part, respecting the various callout settings which influence how the
callout end should be placed in the anchor geometry.
Returns a null geometry if the callout line cannot be calculated.
The ``pinned`` argument will be set to ``True`` if the callout anchor
point is pinned (manually placed).
.. versionadded:: 3.20
%End
};
class QgsSimpleLineCallout : QgsCallout
{
%Docstring(signature="appended")
A simple direct line callout style.
.. versionadded:: 3.10
%End
%TypeHeaderCode
#include "qgscallout.h"
%End
public:
QgsSimpleLineCallout();
~QgsSimpleLineCallout();
static QgsCallout *create( const QVariantMap &properties = QVariantMap(), const QgsReadWriteContext &context = QgsReadWriteContext() ) /Factory/;
%Docstring
Creates a new QgsSimpleLineCallout, using the settings serialized in the
``properties`` map (corresponding to the output from
:py:func:`QgsSimpleLineCallout.properties()` ).
%End
virtual QString type() const;
virtual QgsSimpleLineCallout *clone() const;
virtual QVariantMap properties( const QgsReadWriteContext &context ) const;
virtual void readProperties( const QVariantMap &props, const QgsReadWriteContext &context );
virtual void startRender( QgsRenderContext &context );
virtual void stopRender( QgsRenderContext &context );
virtual QSet< QString > referencedFields( const QgsRenderContext &context ) const;
QgsLineSymbol *lineSymbol();
%Docstring
Returns the line symbol used to render the callout line.
Ownership is not transferred.
.. seealso:: :py:func:`setLineSymbol`
%End
void setLineSymbol( QgsLineSymbol *symbol /Transfer/ );
%Docstring
Sets the line ``symbol`` used to render the callout line. Ownership of
``symbol`` is transferred to the callout.
.. seealso:: :py:func:`lineSymbol`
%End
double minimumLength() const;
%Docstring
Returns the minimum length of callout lines. Units are specified through
:py:func:`~QgsSimpleLineCallout.minimumLengthUnits`.
.. seealso:: :py:func:`setMinimumLength`
.. seealso:: :py:func:`minimumLengthUnit`
%End
void setMinimumLength( double length );
%Docstring
Sets the minimum ``length`` of callout lines. Units are specified
through :py:func:`~QgsSimpleLineCallout.setMinimumLengthUnit`.
.. seealso:: :py:func:`minimumLength`
.. seealso:: :py:func:`setMinimumLengthUnit`
%End
void setMinimumLengthUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the minimum length of callout lines.
.. seealso:: :py:func:`minimumLengthUnit`
.. seealso:: :py:func:`setMinimumLength`
%End
Qgis::RenderUnit minimumLengthUnit() const;
%Docstring
Returns the units for the minimum length of callout lines.
.. seealso:: :py:func:`setMinimumLengthUnit`
.. seealso:: :py:func:`minimumLength`
%End
void setMinimumLengthMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the minimum callout length.
.. seealso:: :py:func:`minimumLengthMapUnitScale`
.. seealso:: :py:func:`setMinimumLengthUnit`
.. seealso:: :py:func:`setMinimumLength`
%End
const QgsMapUnitScale &minimumLengthMapUnitScale() const;
%Docstring
Returns the map unit scale for the minimum callout length.
.. seealso:: :py:func:`setMinimumLengthMapUnitScale`
.. seealso:: :py:func:`minimumLengthUnit`
.. seealso:: :py:func:`minimumLength`
%End
double offsetFromAnchor() const;
%Docstring
Returns the offset distance from the anchor point at which to start the
line. Units are specified through
:py:func:`~QgsSimpleLineCallout.offsetFromAnchorUnit`.
.. seealso:: :py:func:`setOffsetFromAnchor`
.. seealso:: :py:func:`offsetFromAnchorUnit`
%End
void setOffsetFromAnchor( double distance );
%Docstring
Sets the offset ``distance`` from the anchor point at which to start the
line. Units are specified through
:py:func:`~QgsSimpleLineCallout.setOffsetFromAnchorUnit`.
.. seealso:: :py:func:`offsetFromAnchor`
.. seealso:: :py:func:`setOffsetFromAnchorUnit`
%End
void setOffsetFromAnchorUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the offset from anchor distance.
.. seealso:: :py:func:`offsetFromAnchor`
.. seealso:: :py:func:`setOffsetFromAnchor`
%End
Qgis::RenderUnit offsetFromAnchorUnit() const;
%Docstring
Returns the units for the offset from anchor point.
.. seealso:: :py:func:`setOffsetFromAnchorUnit`
.. seealso:: :py:func:`offsetFromAnchor`
%End
void setOffsetFromAnchorMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the offset from anchor.
.. seealso:: :py:func:`offsetFromAnchorMapUnitScale`
.. seealso:: :py:func:`setOffsetFromAnchorUnit`
.. seealso:: :py:func:`setOffsetFromAnchor`
%End
const QgsMapUnitScale &offsetFromAnchorMapUnitScale() const;
%Docstring
Returns the map unit scale for the offset from anchor.
.. seealso:: :py:func:`setOffsetFromAnchorMapUnitScale`
.. seealso:: :py:func:`offsetFromAnchorUnit`
.. seealso:: :py:func:`offsetFromAnchor`
%End
double offsetFromLabel() const;
%Docstring
Returns the offset distance from label area at which to end the line.
Units are specified through
:py:func:`~QgsSimpleLineCallout.offsetFromLabelUnit`.
.. seealso:: :py:func:`setOffsetFromLabel`
.. seealso:: :py:func:`offsetFromLabelUnit`
%End
void setOffsetFromLabel( double distance );
%Docstring
Sets the offset ``distance`` from label area at which to end the line.
Units are specified through
:py:func:`~QgsSimpleLineCallout.setOffsetFromLabelUnit`.
.. seealso:: :py:func:`offsetFromLabel`
.. seealso:: :py:func:`setOffsetFromLabelUnit`
%End
void setOffsetFromLabelUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the offset from label area distance.
.. seealso:: :py:func:`offsetFromLabel`
.. seealso:: :py:func:`setOffsetFromLabel`
%End
Qgis::RenderUnit offsetFromLabelUnit() const;
%Docstring
Returns the units for the offset from label area.
.. seealso:: :py:func:`setOffsetFromLabelUnit`
.. seealso:: :py:func:`offsetFromLabel`
%End
void setOffsetFromLabelMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the offset from label area.
.. seealso:: :py:func:`offsetFromLabelMapUnitScale`
.. seealso:: :py:func:`setOffsetFromLabelUnit`
.. seealso:: :py:func:`setOffsetFromLabel`
%End
const QgsMapUnitScale &offsetFromLabelMapUnitScale() const;
%Docstring
Returns the map unit scale for the minimum callout length.
.. seealso:: :py:func:`setOffsetFromLabelMapUnitScale`
.. seealso:: :py:func:`offsetFromLabelUnit`
.. seealso:: :py:func:`offsetFromLabel`
%End
bool drawCalloutToAllParts() const;
%Docstring
Returns ``True`` if callout lines should be drawn to all feature parts.
.. seealso:: :py:func:`setDrawCalloutToAllParts`
%End
void setDrawCalloutToAllParts( bool drawToAllParts );
%Docstring
Sets whether callout lines should be drawn to all feature parts.
.. seealso:: :py:func:`drawCalloutToAllParts`
%End
protected:
virtual void draw( QgsRenderContext &context, const QRectF &bodyBoundingBox, const double angle, const QgsGeometry &anchor, QgsCallout::QgsCalloutContext &calloutContext );
virtual QgsCurve *createCalloutLine( const QgsPoint &start, const QgsPoint &end, QgsRenderContext &context, const QRectF &bodyBoundingBox, const double angle, const QgsGeometry &anchor, QgsCallout::QgsCalloutContext &calloutContext ) const /Factory/;
%Docstring
Creates a callout line between ``start`` and ``end`` in the desired
style.
The base class method returns a straight line.
.. versionadded:: 3.20
%End
private:
QgsSimpleLineCallout( const QgsSimpleLineCallout &other );
QgsSimpleLineCallout &operator=( const QgsSimpleLineCallout & );
};
class QgsManhattanLineCallout : QgsSimpleLineCallout
{
%Docstring(signature="appended")
Draws straight (right angled) lines as callouts.
.. versionadded:: 3.10
%End
%TypeHeaderCode
#include "qgscallout.h"
%End
public:
QgsManhattanLineCallout();
static QgsCallout *create( const QVariantMap &properties = QVariantMap(), const QgsReadWriteContext &context = QgsReadWriteContext() ) /Factory/;
%Docstring
Creates a new QgsManhattanLineCallout, using the settings serialized in
the ``properties`` map (corresponding to the output from
:py:func:`QgsManhattanLineCallout.properties()` ).
%End
virtual QString type() const;
virtual QgsManhattanLineCallout *clone() const;
protected:
virtual QgsCurve *createCalloutLine( const QgsPoint &start, const QgsPoint &end, QgsRenderContext &context, const QRectF &bodyBoundingBox, const double angle, const QgsGeometry &anchor, QgsCallout::QgsCalloutContext &calloutContext ) const /Factory/;
private:
QgsManhattanLineCallout( const QgsManhattanLineCallout &other );
QgsManhattanLineCallout &operator=( const QgsManhattanLineCallout & );
};
class QgsCurvedLineCallout : QgsSimpleLineCallout
{
%Docstring(signature="appended")
Draws curved lines as callouts.
.. versionadded:: 3.20
%End
%TypeHeaderCode
#include "qgscallout.h"
%End
public:
enum Orientation /BaseType=IntEnum/
{
Automatic,
Clockwise,
CounterClockwise,
};
QgsCurvedLineCallout();
static QgsCallout *create( const QVariantMap &properties = QVariantMap(), const QgsReadWriteContext &context = QgsReadWriteContext() ) /Factory/;
%Docstring
Creates a new QgsCurvedLineCallout, using the settings serialized in the
``properties`` map (corresponding to the output from
:py:func:`QgsCurvedLineCallout.properties()` ).
%End
virtual QString type() const;
virtual QgsCurvedLineCallout *clone() const;
virtual QVariantMap properties( const QgsReadWriteContext &context ) const;
double curvature() const;
%Docstring
Returns the callout line's curvature.
The curvature is a percentage value (with typical ranges between 0.0 and
1.0), representing the overall curvature of the line.
.. seealso:: :py:func:`setCurvature`
%End
void setCurvature( double curvature );
%Docstring
Sets the callout line's ``curvature``.
The ``curvature`` is a percentage value (with typical ranges between 0.0
and 1.0), representing the overall curvature of the line.
.. seealso:: :py:func:`curvature`
%End
Orientation orientation() const;
%Docstring
Returns the callout line's curve orientation.
.. seealso:: :py:func:`setOrientation`
%End
void setOrientation( Orientation orientation );
%Docstring
Sets the callout line's curve ``orientation``.
.. seealso:: :py:func:`orientation`
%End
protected:
virtual QgsCurve *createCalloutLine( const QgsPoint &start, const QgsPoint &end, QgsRenderContext &context, const QRectF &bodyBoundingBox, const double angle, const QgsGeometry &anchor, QgsCalloutContext &calloutContext ) const /Factory/;
private:
QgsCurvedLineCallout( const QgsCurvedLineCallout &other );
QgsCurvedLineCallout &operator=( const QgsCurvedLineCallout & );
};
class QgsBalloonCallout : QgsCallout
{
%Docstring(signature="appended")
A cartoon talking bubble callout style.
.. versionadded:: 3.20
%End
%TypeHeaderCode
#include "qgscallout.h"
%End
public:
QgsBalloonCallout();
~QgsBalloonCallout();
static QgsCallout *create( const QVariantMap &properties = QVariantMap(), const QgsReadWriteContext &context = QgsReadWriteContext() ) /Factory/;
%Docstring
Creates a new QgsBalloonCallout, using the settings serialized in the
``properties`` map (corresponding to the output from
:py:func:`QgsBalloonCallout.properties()` ).
%End
virtual QString type() const;
virtual QgsBalloonCallout *clone() const;
virtual QVariantMap properties( const QgsReadWriteContext &context ) const;
virtual void readProperties( const QVariantMap &props, const QgsReadWriteContext &context );
virtual void startRender( QgsRenderContext &context );
virtual void stopRender( QgsRenderContext &context );
virtual QSet< QString > referencedFields( const QgsRenderContext &context ) const;
QgsFillSymbol *fillSymbol();
%Docstring
Returns the fill symbol used to render the callout.
Ownership is not transferred.
.. seealso:: :py:func:`setFillSymbol`
%End
void setFillSymbol( QgsFillSymbol *symbol /Transfer/ );
%Docstring
Sets the fill ``symbol`` used to render the callout. Ownership of
``symbol`` is transferred to the callout.
.. seealso:: :py:func:`fillSymbol`
%End
QgsMarkerSymbol *markerSymbol();
%Docstring
Returns the marker symbol used to render the callout endpoint.
May be ``None``, if no endpoint marker will be used.
The marker will always be rendered below the fill symbol for the
callout.
Ownership is not transferred.
.. seealso:: :py:func:`setMarkerSymbol`
.. versionadded:: 3.40
%End
void setMarkerSymbol( QgsMarkerSymbol *symbol /Transfer/ );
%Docstring
Sets the marker ``symbol`` used to render the callout endpoint.
Ownership of ``symbol`` is transferred to the callout.
Set to ``None`` to disable the endpoint marker.
The marker will always be rendered below the fill symbol for the
callout.
.. seealso:: :py:func:`markerSymbol`
.. versionadded:: 3.40
%End
double offsetFromAnchor() const;
%Docstring
Returns the offset distance from the anchor point at which to start the
line. Units are specified through
:py:func:`~QgsBalloonCallout.offsetFromAnchorUnit`.
.. seealso:: :py:func:`setOffsetFromAnchor`
.. seealso:: :py:func:`offsetFromAnchorUnit`
%End
void setOffsetFromAnchor( double distance );
%Docstring
Sets the offset ``distance`` from the anchor point at which to start the
line. Units are specified through
:py:func:`~QgsBalloonCallout.setOffsetFromAnchorUnit`.
.. seealso:: :py:func:`offsetFromAnchor`
.. seealso:: :py:func:`setOffsetFromAnchorUnit`
%End
void setOffsetFromAnchorUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the offset from anchor distance.
.. seealso:: :py:func:`offsetFromAnchor`
.. seealso:: :py:func:`setOffsetFromAnchor`
%End
Qgis::RenderUnit offsetFromAnchorUnit() const;
%Docstring
Returns the units for the offset from anchor point.
.. seealso:: :py:func:`setOffsetFromAnchorUnit`
.. seealso:: :py:func:`offsetFromAnchor`
%End
void setOffsetFromAnchorMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the offset from anchor.
.. seealso:: :py:func:`offsetFromAnchorMapUnitScale`
.. seealso:: :py:func:`setOffsetFromAnchorUnit`
.. seealso:: :py:func:`setOffsetFromAnchor`
%End
const QgsMapUnitScale &offsetFromAnchorMapUnitScale() const;
%Docstring
Returns the map unit scale for the offset from anchor.
.. seealso:: :py:func:`setOffsetFromAnchorMapUnitScale`
.. seealso:: :py:func:`offsetFromAnchorUnit`
.. seealso:: :py:func:`offsetFromAnchor`
%End
const QgsMargins &margins() const;
%Docstring
Returns the margins between the outside of the callout frame and the
label's bounding rectangle.
Units are retrieved via :py:func:`~QgsBalloonCallout.marginsUnit`
.. note::
Negative margins are acceptable.
.. seealso:: :py:func:`setMargins`
.. seealso:: :py:func:`marginsUnit`
%End
void setMargins( const QgsMargins &margins );
%Docstring
Sets the ``margins`` between the outside of the callout frame and the
label's bounding rectangle.
Units are set via :py:func:`~QgsBalloonCallout.setMarginsUnit`
.. note::
Negative margins are acceptable.
.. seealso:: :py:func:`margins`
.. seealso:: :py:func:`setMarginsUnit`
%End
void setMarginsUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the margins between the outside of the callout
frame and the label's bounding rectangle.
.. seealso:: :py:func:`margins`
.. seealso:: :py:func:`marginsUnit`
%End
Qgis::RenderUnit marginsUnit() const;
%Docstring
Returns the units for the margins between the outside of the callout
frame and the label's bounding rectangle.
.. seealso:: :py:func:`setMarginsUnit`
.. seealso:: :py:func:`margins`
%End
double wedgeWidth() const;
%Docstring
Returns the width of the wedge shape at the side it connects with the
label.
Units are specified through
:py:func:`~QgsBalloonCallout.wedgeWidthUnit`.
.. seealso:: :py:func:`setWedgeWidth`
.. seealso:: :py:func:`wedgeWidthUnit`
%End
void setWedgeWidth( double width );
%Docstring
Sets the ``width`` of the wedge shape at the side it connects with the
label.
Units are specified through
:py:func:`~QgsBalloonCallout.setWedgeWidthUnit`.
.. seealso:: :py:func:`wedgeWidth`
.. seealso:: :py:func:`setWedgeWidthUnit`
%End
void setWedgeWidthUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the wedge width.
.. seealso:: :py:func:`wedgeWidthUnit`
.. seealso:: :py:func:`setWedgeWidth`
%End
Qgis::RenderUnit wedgeWidthUnit() const;
%Docstring
Returns the units for the wedge width.
.. seealso:: :py:func:`setWedgeWidthUnit`
.. seealso:: :py:func:`wedgeWidth`
%End
void setWedgeWidthMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the wedge width.
.. seealso:: :py:func:`wedgeWidthMapUnitScale`
.. seealso:: :py:func:`setWedgeWidthUnit`
.. seealso:: :py:func:`setWedgeWidth`
%End
const QgsMapUnitScale &wedgeWidthMapUnitScale() const;
%Docstring
Returns the map unit scale for the wedge width.
.. seealso:: :py:func:`setWedgeWidthMapUnitScale`
.. seealso:: :py:func:`wedgeWidthUnit`
.. seealso:: :py:func:`wedgeWidth`
%End
double cornerRadius() const;
%Docstring
Returns the corner radius of the balloon shapes.
Units are specified through
:py:func:`~QgsBalloonCallout.wedgeWidthUnit`.
.. seealso:: :py:func:`setCornerRadius`
.. seealso:: :py:func:`cornerRadiusUnit`
%End
void setCornerRadius( double radius );
%Docstring
Sets the ``radius`` of the corners for the balloon shapes.
Units are specified through
:py:func:`~QgsBalloonCallout.setCornerRadiusUnit`.
.. seealso:: :py:func:`cornerRadius`
.. seealso:: :py:func:`setCornerRadiusUnit`
%End
void setCornerRadiusUnit( Qgis::RenderUnit unit );
%Docstring
Sets the ``unit`` for the corner radius.
.. seealso:: :py:func:`cornerRadiusUnit`
.. seealso:: :py:func:`setCornerRadius`
%End
Qgis::RenderUnit cornerRadiusUnit() const;
%Docstring
Returns the units for the corner radius.
.. seealso:: :py:func:`setCornerRadiusUnit`
.. seealso:: :py:func:`cornerRadius`
%End
void setCornerRadiusMapUnitScale( const QgsMapUnitScale &scale );
%Docstring
Sets the map unit ``scale`` for the corner radius.
.. seealso:: :py:func:`cornerRadiusMapUnitScale`
.. seealso:: :py:func:`setCornerRadiusUnit`
.. seealso:: :py:func:`setCornerRadius`
%End
const QgsMapUnitScale &cornerRadiusMapUnitScale() const;
%Docstring
Returns the map unit scale for the corner radius.
.. seealso:: :py:func:`setCornerRadiusMapUnitScale`
.. seealso:: :py:func:`cornerRadiusUnit`
.. seealso:: :py:func:`cornerRadius`
%End
protected:
virtual void draw( QgsRenderContext &context, const QRectF &bodyBoundingBox, const double angle, const QgsGeometry &anchor, QgsCallout::QgsCalloutContext &calloutContext );
private:
QgsBalloonCallout( const QgsBalloonCallout &other );
QgsBalloonCallout &operator=( const QgsBalloonCallout & );
};
/************************************************************************
* This file has been generated automatically from *
* *
* src/core/callouts/qgscallout.h *
* *
* Do not edit manually ! Edit header and run scripts/sipify.py again *
************************************************************************/
|