A class to query the labeling structure at a given point (small wrapper around pal RTree class) More...

#include <qgslabelsearchtree.h>

Public Member Functions
	QgsLabelSearchTree ()=default
	Constructor for QgsLabelSearchTree. More...

	QgsLabelSearchTree (const QgsLabelSearchTree &rh)=delete
	QgsLabelSearchTree cannot be copied. More...

	~QgsLabelSearchTree ()

void	clear ()
	Removes and deletes all the entries. More...

bool	insertLabel (pal::LabelPosition *labelPos, int featureId, const QString &layerName, const QString &labeltext, const QFont &labelfont, bool diagram=false, bool pinned=false, const QString &providerId=QString())
	Inserts label position. More...

void	label (const QgsPointXY &p, QList< QgsLabelPosition *> &posList) const
	Returns label position(s) at a given point. More...

void	labelsInRect (const QgsRectangle &r, QList< QgsLabelPosition *> &posList) const
	Returns label position(s) in given rectangle. More...

QgsLabelSearchTree &	operator= (const QgsLabelSearchTree &rh)=delete
	QgsLabelSearchTree cannot be copied. More...

Detailed Description

A class to query the labeling structure at a given point (small wrapper around pal RTree class)

Definition at line 42 of file qgslabelsearchtree.h.

Constructor & Destructor Documentation

◆ QgsLabelSearchTree() [1/2]

QgsLabelSearchTree::QgsLabelSearchTree ( )

default

Constructor for QgsLabelSearchTree.

◆ ~QgsLabelSearchTree()

QgsLabelSearchTree::~QgsLabelSearchTree ( )

Definition at line 25 of file qgslabelsearchtree.cpp.

◆ QgsLabelSearchTree() [2/2]

QgsLabelSearchTree::QgsLabelSearchTree ( const QgsLabelSearchTree & rh )

delete

QgsLabelSearchTree cannot be copied.

Member Function Documentation

◆ clear()

void QgsLabelSearchTree::clear ( )

Removes and deletes all the entries.

Definition at line 98 of file qgslabelsearchtree.cpp.

◆ insertLabel()

bool QgsLabelSearchTree::insertLabel	(	pal::LabelPosition *	labelPos,
		int	featureId,
		const QString &	layerName,
		const QString &	labeltext,
		const QFont &	labelfont,
		bool	diagram = `false`,
		bool	pinned = `false`,
		const QString &	providerId = `QString()`
	)

Inserts label position.

Does not take ownership of labelPos

Returns: true in case of success

Note: not available in Python bindings

Definition at line 74 of file qgslabelsearchtree.cpp.

◆ label()

void QgsLabelSearchTree::label	(	const QgsPointXY &	p,
		QList< QgsLabelPosition *> &	posList
	)		const

Returns label position(s) at a given point.

QgsLabelSearchTree keeps ownership, don't delete the LabelPositions

Note: not available in Python bindings TODO: why does this break bindings with QList<QgsLabelPosition>?

Definition at line 30 of file qgslabelsearchtree.cpp.

◆ labelsInRect()

void QgsLabelSearchTree::labelsInRect	(	const QgsRectangle &	r,
		QList< QgsLabelPosition *> &	posList
	)		const

Returns label position(s) in given rectangle.