An annotation item which renders text along a line geometry. More...

#include <qgsannotationlinetextitem.h>

Inheritance diagram for QgsAnnotationLineTextItem:

Public Member Functions
	QgsAnnotationLineTextItem (const QString &text, QgsCurve *curve)
	Constructor for QgsAnnotationLineTextItem, with the specified curve and text.

	~QgsAnnotationLineTextItem () override

Qgis::AnnotationItemEditOperationResult	applyEditV2 (QgsAbstractAnnotationItemEditOperation *operation, const QgsAnnotationItemEditContext &context) override
	Applies an edit operation to the item.

QgsRectangle	boundingBox () const override
	Returns the bounding box of the item's geographic location, in the parent layer's coordinate reference system.

QgsRectangle	boundingBox (QgsRenderContext &context) const override
	Returns the bounding box of the item's geographic location, in the parent layer's coordinate reference system.

QgsAnnotationLineTextItem *	clone () const override
	Returns a clone of the item.

Qgis::AnnotationItemFlags	flags () const override
	Returns item flags.

QgsTextFormat	format () const
	Returns the text format used to render the text.

const QgsCurve *	geometry () const
	Returns the geometry of the item.

QList< QgsAnnotationItemNode >	nodesV2 (const QgsAnnotationItemEditContext &context) const override
	Returns the nodes for the item, used for editing the item.

double	offsetFromLine () const
	Returns the offset distance from the line geometry() to the text's baseline.

const QgsMapUnitScale &	offsetFromLineMapUnitScale () const
	Returns the map unit scale for the offset from line geometry() distance.

Qgis::RenderUnit	offsetFromLineUnit () const
	Returns the units for the offset from line geometry() distance.

bool	readXml (const QDomElement &element, const QgsReadWriteContext &context) override
	Reads the item's state from the given DOM element.

void	render (QgsRenderContext &context, QgsFeedback *feedback) override
	Renders the item to the specified render context.

void	setFormat (const QgsTextFormat &format)
	Sets the text format used to render the text.

void	setGeometry (QgsCurve *geometry)
	Sets the geometry of the item.

void	setOffsetFromLine (double distance)
	Sets the offset distance from the line geometry() to the text's baseline.

void	setOffsetFromLineMapUnitScale (const QgsMapUnitScale &scale)
	Sets the map unit scale for the offset from line geometry() distance.

void	setOffsetFromLineUnit (Qgis::RenderUnit unit)
	Sets the unit for the offset from line geometry() distance.

void	setText (const QString &text)
	Sets the text rendered by the item.

QString	text () const
	Returns the text rendered by the item.

QgsAnnotationItemEditOperationTransientResults *	transientEditResultsV2 (QgsAbstractAnnotationItemEditOperation *operation, const QgsAnnotationItemEditContext &context) override
	Retrieves the results of a transient (in progress) edit operation on the item.

QString	type () const override
	Returns a unique (untranslated) string identifying the type of item.

bool	writeXml (QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const override
	Writes the item's state into an XML element.

Public Member Functions inherited from QgsAnnotationItem
	QgsAnnotationItem ()

	QgsAnnotationItem (const QgsAnnotationItem &other)=delete

virtual	~QgsAnnotationItem ()

virtual Q_DECL_DEPRECATED Qgis::AnnotationItemEditOperationResult	applyEdit (QgsAbstractAnnotationItemEditOperation *operation)
	Applies an edit operation to the item.

QgsCallout *	callout () const
	Returns the item's callout renderer, responsible for drawing item callouts.

QgsGeometry	calloutAnchor () const
	Returns the callout's anchor geometry.

bool	enabled () const
	Returns `true` if the item is enabled and will be rendered in the layer.

virtual Q_DECL_DEPRECATED QList< QgsAnnotationItemNode >	nodes () const
	Returns the nodes for the item, used for editing the item.

QSizeF	offsetFromCallout () const
	Returns the (optional) offset of the annotation item from the calloutAnchor().

Qgis::RenderUnit	offsetFromCalloutUnit () const
	Returns the units for the offsetFromCallout().

QgsAnnotationItem &	operator= (const QgsAnnotationItem &other)=delete

void	setCallout (QgsCallout *callout)
	Sets the item's callout renderer, responsible for drawing item callouts.

void	setCalloutAnchor (const QgsGeometry &anchor)
	Sets the callout's anchor geometry.

void	setEnabled (bool enabled)
	Sets if the item will be rendered or not in the layer.

void	setOffsetFromCallout (const QSizeF &offset)
	Sets the offset of the annotation item from the calloutAnchor().

void	setOffsetFromCalloutUnit (Qgis::RenderUnit unit)
	Sets the unit for the offsetFromCallout().

void	setSymbologyReferenceScale (double scale)
	Sets the annotation's symbology reference scale.

void	setUseSymbologyReferenceScale (bool enabled)
	Sets whether the annotation item uses a symbology reference scale.

void	setZIndex (int index)
	Sets the item's z index, which controls the order in which annotation items are rendered in the layer.

double	symbologyReferenceScale () const
	Returns the annotation's symbology reference scale.

virtual Q_DECL_DEPRECATED QgsAnnotationItemEditOperationTransientResults *	transientEditResults (QgsAbstractAnnotationItemEditOperation *operation)
	Retrieves the results of a transient (in progress) edit operation on the item.

bool	useSymbologyReferenceScale () const
	Returns `true` if the annotation item uses a symbology reference scale.

int	zIndex () const
	Returns the item's z index, which controls the order in which annotation items are rendered in the layer.

Static Public Member Functions
static QgsAnnotationLineTextItem *	create ()
	Creates a new linestring annotation item.

Additional Inherited Members
Protected Member Functions inherited from QgsAnnotationItem
virtual void	copyCommonProperties (const QgsAnnotationItem *other)
	Copies common properties from the base class from an other item.

virtual bool	readCommonProperties (const QDomElement &element, const QgsReadWriteContext &context)
	Reads common properties from the base class from the given DOM element.

void	renderCallout (QgsRenderContext &context, const QRectF &rect, double angle, QgsCallout::QgsCalloutContext &calloutContext, QgsFeedback *feedback)
	Renders the item's callout.

virtual bool	writeCommonProperties (QDomElement &element, QDomDocument &document, const QgsReadWriteContext &context) const
	Writes common properties from the base class into an XML element.

Detailed Description

An annotation item which renders text along a line geometry.

Since: QGIS 3.32

Definition at line 34 of file qgsannotationlinetextitem.h.

Constructor & Destructor Documentation

◆ QgsAnnotationLineTextItem()

QgsAnnotationLineTextItem::QgsAnnotationLineTextItem	(	const QString &	text,
		QgsCurve *	curve
	)

Constructor for QgsAnnotationLineTextItem, with the specified curve and text.

Definition at line 28 of file qgsannotationlinetextitem.cpp.

◆ ~QgsAnnotationLineTextItem()

QgsAnnotationLineTextItem::~QgsAnnotationLineTextItem ( )

overridedefault

Member Function Documentation

◆ applyEditV2()

Qgis::AnnotationItemEditOperationResult QgsAnnotationLineTextItem::applyEditV2	(	QgsAbstractAnnotationItemEditOperation *	operation,
		const QgsAnnotationItemEditContext &	context
	)

overridevirtual

Applies an edit operation to the item.

Since: QGIS 3.40

Reimplemented from QgsAnnotationItem.

Definition at line 120 of file qgsannotationlinetextitem.cpp.

◆ boundingBox() [1/2]

QgsRectangle QgsAnnotationLineTextItem::boundingBox ( ) const

overridevirtual

Returns the bounding box of the item's geographic location, in the parent layer's coordinate reference system.

Implements QgsAnnotationItem.

Definition at line 229 of file qgsannotationlinetextitem.cpp.

◆ boundingBox() [2/2]

QgsRectangle QgsAnnotationLineTextItem::boundingBox ( QgsRenderContext & context ) const

overridevirtual

Returns the bounding box of the item's geographic location, in the parent layer's coordinate reference system.

Reimplemented from QgsAnnotationItem.

Definition at line 234 of file qgsannotationlinetextitem.cpp.

◆ clone()

QgsAnnotationLineTextItem * QgsAnnotationLineTextItem::clone ( ) const

overridevirtual

Returns a clone of the item.

Ownership is transferred to the caller.

Implementations should include a call to copyCommonProperties() to copy the base class properties.

See also: copyCommonProperties()

Implements QgsAnnotationItem.

Definition at line 250 of file qgsannotationlinetextitem.cpp.

◆ create()

QgsAnnotationLineTextItem * QgsAnnotationLineTextItem::create ( )

static

Creates a new linestring annotation item.

Definition at line 195 of file qgsannotationlinetextitem.cpp.

◆ flags()

Qgis::AnnotationItemFlags QgsAnnotationLineTextItem::flags ( ) const

overridevirtual

Returns item flags.

Since: QGIS 3.22

Reimplemented from QgsAnnotationItem.

Definition at line 36 of file qgsannotationlinetextitem.cpp.

◆ format()

QgsTextFormat QgsAnnotationLineTextItem::format ( ) const

Returns the text format used to render the text.

See also: setFormat()

Definition at line 266 of file qgsannotationlinetextitem.cpp.

◆ geometry()

const QgsCurve * QgsAnnotationLineTextItem::geometry ( ) const

inline

Returns the geometry of the item.

The coordinate reference system for the line will be the parent layer's QgsAnnotationLayer::crs().

See also: setGeometry()

Definition at line 70 of file qgsannotationlinetextitem.h.

◆ nodesV2()

QList< QgsAnnotationItemNode > QgsAnnotationLineTextItem::nodesV2 ( const QgsAnnotationItemEditContext & context ) const

overridevirtual

Returns the nodes for the item, used for editing the item.

Since: QGIS 3.40

Reimplemented from QgsAnnotationItem.

Definition at line 109 of file qgsannotationlinetextitem.cpp.

◆ offsetFromLine()

double QgsAnnotationLineTextItem::offsetFromLine ( ) const

inline

Returns the offset distance from the line geometry() to the text's baseline.

Units are specified through offsetFromLineUnit().

See also: setOffsetFromLine(); offsetFromLineUnit()

Definition at line 115 of file qgsannotationlinetextitem.h.

◆ offsetFromLineMapUnitScale()

const QgsMapUnitScale & QgsAnnotationLineTextItem::offsetFromLineMapUnitScale ( ) const

inline

Returns the map unit scale for the offset from line geometry() distance.

See also: setOffsetFromLineMapUnitScale(); offsetFromLineUnit(); offsetFromLine()

Definition at line 157 of file qgsannotationlinetextitem.h.

◆ offsetFromLineUnit()

Qgis::RenderUnit QgsAnnotationLineTextItem::offsetFromLineUnit ( ) const

inline

Returns the units for the offset from line geometry() distance.

See also: setOffsetFromLineUnit(); offsetFromLine()

Definition at line 139 of file qgsannotationlinetextitem.h.

◆ readXml()

bool QgsAnnotationLineTextItem::readXml	(	const QDomElement &	element,
		const QgsReadWriteContext &	context
	)

overridevirtual

Reads the item's state from the given DOM element.

Implementations should include a call to readCommonProperties() to read the base class properties.

See also: writeXml(); readCommonProperties()

Implements QgsAnnotationItem.

Definition at line 200 of file qgsannotationlinetextitem.cpp.

◆ render()

void QgsAnnotationLineTextItem::render	(	QgsRenderContext &	context,
		QgsFeedback *	feedback
	)

overridevirtual

Renders the item to the specified render context.

The feedback argument can be used to detect render cancellations during expensive render operations.

Implements QgsAnnotationItem.

Definition at line 50 of file qgsannotationlinetextitem.cpp.

◆ setFormat()

void QgsAnnotationLineTextItem::setFormat ( const QgsTextFormat & format )

Sets the text format used to render the text.

See also: format()

Definition at line 271 of file qgsannotationlinetextitem.cpp.

◆ setGeometry()

void QgsAnnotationLineTextItem::setGeometry ( QgsCurve * geometry )

Sets the geometry of the item.

Ownership of geometry is transferred.

The coordinate reference system for the line will be the parent layer's QgsAnnotationLayer::crs().

See also: geometry()

Definition at line 261 of file qgsannotationlinetextitem.cpp.

◆ setOffsetFromLine()

void QgsAnnotationLineTextItem::setOffsetFromLine ( double distance )

inline

Sets the offset distance from the line geometry() to the text's baseline.

Units are specified through setOffsetFromLineUnit().

See also: offsetFromLine(); setOffsetFromLineUnit()

Definition at line 123 of file qgsannotationlinetextitem.h.

◆ setOffsetFromLineMapUnitScale()

void QgsAnnotationLineTextItem::setOffsetFromLineMapUnitScale ( const QgsMapUnitScale & scale )

inline

Sets the map unit scale for the offset from line geometry() distance.

See also: offsetFromLineMapUnitScale(); setOffsetFromLineUnit(); setOffsetFromLine()

Definition at line 148 of file qgsannotationlinetextitem.h.

◆ setOffsetFromLineUnit()

void QgsAnnotationLineTextItem::setOffsetFromLineUnit ( Qgis::RenderUnit unit )

inline

Sets the unit for the offset from line geometry() distance.

See also: offsetFromLineUnit(); setOffsetFromLine()

Definition at line 131 of file qgsannotationlinetextitem.h.

◆ setText()

void QgsAnnotationLineTextItem::setText ( const QString & text )

inline

Sets the text rendered by the item.

See also: text()

Definition at line 93 of file qgsannotationlinetextitem.h.

◆ text()

QString QgsAnnotationLineTextItem::text ( ) const

inline

Returns the text rendered by the item.

See also: setText()

Definition at line 86 of file qgsannotationlinetextitem.h.

◆ transientEditResultsV2()

QgsAnnotationItemEditOperationTransientResults * QgsAnnotationLineTextItem::transientEditResultsV2	(	QgsAbstractAnnotationItemEditOperation *	operation,
		const QgsAnnotationItemEditContext &	context
	)

overridevirtual

Retrieves the results of a transient (in progress) edit operation on the item.

Since: QGIS 3.40

Reimplemented from QgsAnnotationItem.

Definition at line 164 of file qgsannotationlinetextitem.cpp.

◆ type()

QString QgsAnnotationLineTextItem::type ( ) const

overridevirtual

Returns a unique (untranslated) string identifying the type of item.

Implements QgsAnnotationItem.

Definition at line 45 of file qgsannotationlinetextitem.cpp.

◆ writeXml()

bool QgsAnnotationLineTextItem::writeXml	(	QDomElement &	element,
		QDomDocument &	document,
		const QgsReadWriteContext &	context
	)		const

overridevirtual

Writes the item's state into an XML element.

Implementations should include a call to writeCommonProperties() to store the base class properties.

See also: readXml(); writeCommonProperties()

Implements QgsAnnotationItem.

Definition at line 91 of file qgsannotationlinetextitem.cpp.

The documentation for this class was generated from the following files:

/build/qgis-3.41.0+git20241119+45a0abf3bec+99sid/src/core/annotations/qgsannotationlinetextitem.h
/build/qgis-3.41.0+git20241119+45a0abf3bec+99sid/src/core/annotations/qgsannotationlinetextitem.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsAnnotationLineTextItem()

◆ ~QgsAnnotationLineTextItem()

Member Function Documentation

◆ applyEditV2()

◆ boundingBox() [1/2]

◆ boundingBox() [2/2]

◆ clone()

◆ create()

◆ flags()

◆ format()

◆ geometry()

◆ nodesV2()

◆ offsetFromLine()

◆ offsetFromLineMapUnitScale()

◆ offsetFromLineUnit()

◆ readXml()

◆ render()

◆ setFormat()

◆ setGeometry()

◆ setOffsetFromLine()

◆ setOffsetFromLineMapUnitScale()

◆ setOffsetFromLineUnit()

◆ setText()

◆ text()

◆ transientEditResultsV2()

◆ type()

◆ writeXml()