Class that adds extra information to QgsLabelFeature for text labels. More...

#include <qgspalgeometry.h>

Inheritance diagram for QgsTextLabelFeature:

Public Member Functions
	QgsTextLabelFeature (QgsFeatureId id, GEOSGeometry *geometry, const QSizeF &size)
	Construct text label feature. More...

	~QgsTextLabelFeature ()
	Clean up. More...

void	calculateInfo (bool curvedLabeling, QFontMetricsF fm, const QgsMapToPixel xform, double fontScale, double maxinangle, double maxoutangle)
	calculate data for info(). setDefinedFont() must have been called already. More...

const QMap< QgsPalLayerSettings::DataDefinedProperties, QVariant > &	dataDefinedValues () const
	Get data-defined values. More...

QFont	definedFont ()
	Font to be used for rendering. More...

QFontMetricsF *	labelFontMetrics ()
	Metrics of the font for rendering. More...

void	setDataDefinedValues (const QMap< QgsPalLayerSettings::DataDefinedProperties, QVariant > &values)
	Set data-defined values. More...

void	setDefinedFont (const QFont &f)
	Set font to be used for rendering. More...

QString	text (int partId) const
	Returns the text component corresponding to a specified label part. More...

Public Member Functions inherited from QgsLabelFeature
	QgsLabelFeature (QgsFeatureId id, GEOSGeometry *geometry, const QSizeF &size)
	Create label feature, takes ownership of the geometry instance. More...

virtual	~QgsLabelFeature ()
	Clean up geometry and curved label info (if present) More...

bool	alwaysShow () const
	Whether label should be always shown (sets very high label priority) More...

pal::LabelInfo *	curvedLabelInfo () const
	Get additional infor required for curved label placement. Returns null if not set. More...

double	distLabel () const
	Applies to "around point" placement strategy or linestring features. More...

double	fixedAngle () const
	Angle in degrees of the fixed angle (relevant only if hasFixedAngle() returns true) More...

QgsPoint	fixedPosition () const
	Coordinates of the fixed position (relevant only if hasFixedPosition() returns true) More...

GEOSGeometry *	geometry () const
	Get access to the associated geometry. More...

bool	hasFixedAngle () const
	Whether the label should use a fixed angle instead of using angle from automatic placement. More...

bool	hasFixedPosition () const
	Whether the label should use a fixed position instead of being automatically placed. More...

bool	hasFixedQuadrant () const
	Returns whether the quadrant for the label is fixed. More...

QgsFeatureId	id () const
	Identifier of the label (unique within the parent label provider) More...

bool	isObstacle () const
	Returns whether the feature will act as an obstacle for labels. More...

QString	labelText () const
	Text of the label. More...

pal::Layer *	layer () const
	Get PAL layer of the label feature. Should be only used internally in PAL. More...

double	obstacleFactor () const
	Returns the obstacle factor for the feature. More...

QgsPoint	positionOffset () const
	Applies only to "offset from point" placement strategy. More...

double	priority () const
	Returns the feature's labeling priority. More...

QgsAbstractLabelProvider *	provider () const
	Return provider of this instance. More...

QPointF	quadOffset () const
	Applies to "offset from point" placement strategy and "around point" (in case hasFixedQuadrant() returns true). More...

double	repeatDistance () const
	Applies only to linestring features - after what distance (in map units) the labels should be repeated (0 = no repetitions) More...

void	setAlwaysShow (bool enabled)
	Set whether label should be always shown (sets very high label priority) More...

void	setCurvedLabelInfo (pal::LabelInfo *info)
	takes ownership of the instance More...

void	setDistLabel (double dist)
	Applies to "around point" placement strategy or linestring features. More...

void	setFixedAngle (double angle)
	Set angle in degrees of the fixed angle (relevant only if hasFixedAngle() returns true) More...

void	setFixedPosition (const QgsPoint &point)
	Set coordinates of the fixed position (relevant only if hasFixedPosition() returns true) More...

void	setHasFixedAngle (bool enabled)
	Set whether the label should use a fixed angle instead of using angle from automatic placement. More...

void	setHasFixedPosition (bool enabled)
	Set whether the label should use a fixed position instead of being automatically placed. More...

void	setHasFixedQuadrant (bool enabled)
	Sets whether the quadrant for the label must be respected. More...

void	setIsObstacle (bool enabled)
	Sets whether the feature will act as an obstacle for labels. More...

void	setLabelText (const QString &text)
	Set text of the label. More...

void	setLayer (pal::Layer *layer)
	Assign PAL layer to the label feature. Should be only used internally in PAL. More...

void	setObstacleFactor (double factor)
	Sets the obstacle factor for the feature. More...

void	setPositionOffset (const QgsPoint &offset)
	Applies only to "offset from point" placement strategy. More...

void	setPriority (double priority)
	Sets the priority for labeling the feature. More...

void	setQuadOffset (const QPointF &quadOffset)
	Set which side of the point to use. More...

void	setRepeatDistance (double dist)
	Applies only to linestring features - set after what distance (in map units) the labels should be repeated (0 = no repetitions) More...

QSizeF	size () const
	Size of the label (in map units) More...

Protected Attributes
QStringList	mClusters
	List of graphemes (used for curved labels) More...

QMap< QgsPalLayerSettings::DataDefinedProperties, QVariant >	mDataDefinedValues
	Stores attribute values for data defined properties. More...

QFont	mDefinedFont
	Font for rendering. More...

QFontMetricsF *	mFontMetrics
	Metrics of the font for rendering. More...

Protected Attributes inherited from QgsLabelFeature
bool	mAlwaysShow
	whether to always show label - even in case of collisions More...

double	mDistLabel
	distance of label from the feature (only for "around point" placement or linestrings) More...

double	mFixedAngle
	fixed rotation for the label (instead of automatic choice) More...

QgsPoint	mFixedPosition
	fixed position for the label (instead of automatic placement) More...

GEOSGeometry *	mGeometry
	Geometry of the feature to be labelled. More...

bool	mHasFixedAngle
	whether mFixedAngle should be respected More...

bool	mHasFixedPosition
	whether mFixedPosition should be respected More...

bool	mHasFixedQuadrant
	whether mQuadOffset should be respected (only for "around point" placement) More...

QgsFeatureId	mId
	Associated ID unique within the parent label provider. More...

pal::LabelInfo *	mInfo
	extra information for curved labels (may be null) More...

bool	mIsObstacle
	whether the feature geometry acts as an obstacle for labels More...

QString	mLabelText
	text of the label More...

pal::Layer *	mLayer
	Pointer to PAL layer (assigned when registered to PAL) More...

double	mObstacleFactor
	how strong is the geometry acting as obstacle More...

QgsPoint	mPositionOffset
	offset of label from the feature (only for "offset from point" placement) More...

double	mPriority
	Priority of the label. More...

QPointF	mQuadOffset
	whether the side of the label is fixed (only for "around point" placement) More...

double	mRepeatDistance
	distance after which label should be repeated (only for linestrings) More...

QSizeF	mSize
	Width and height of the label. More...

Detailed Description

Class that adds extra information to QgsLabelFeature for text labels.

Note: not part of public API

Definition at line 17 of file qgspalgeometry.h.

Constructor & Destructor Documentation

QgsTextLabelFeature::QgsTextLabelFeature	(	QgsFeatureId	id,
		GEOSGeometry *	geometry,
		const QSizeF &	size
	)

inline

Construct text label feature.

Definition at line 21 of file qgspalgeometry.h.

QgsTextLabelFeature::~QgsTextLabelFeature ( )

inline

Clean up.

Definition at line 29 of file qgspalgeometry.h.

Member Function Documentation

void QgsTextLabelFeature::calculateInfo	(	bool	curvedLabeling,
		QFontMetricsF *	fm,
		const QgsMapToPixel *	xform,
		double	fontScale,
		double	maxinangle,
		double	maxoutangle
	)

inline

calculate data for info(). setDefinedFont() must have been called already.

Definition at line 48 of file qgspalgeometry.h.

const QMap< QgsPalLayerSettings::DataDefinedProperties, QVariant >& QgsTextLabelFeature::dataDefinedValues ( ) const

inline

Get data-defined values.

Definition at line 113 of file qgspalgeometry.h.

QFont QgsTextLabelFeature::definedFont ( )

inline

Font to be used for rendering.

Definition at line 120 of file qgspalgeometry.h.

QFontMetricsF* QgsTextLabelFeature::labelFontMetrics ( )

inline

Metrics of the font for rendering.

Definition at line 123 of file qgspalgeometry.h.

void QgsTextLabelFeature::setDataDefinedValues ( const QMap< QgsPalLayerSettings::DataDefinedProperties, QVariant > & values )

inline

Set data-defined values.

Definition at line 115 of file qgspalgeometry.h.

void QgsTextLabelFeature::setDefinedFont ( const QFont & f )

inline

Set font to be used for rendering.

Definition at line 118 of file qgspalgeometry.h.

QString QgsTextLabelFeature::text ( int partId ) const

inline

Returns the text component corresponding to a specified label part.

Parameters

partId Set to -1 for labels which are not broken into parts (eg, non-curved labels), or the required part index for labels which are broken into parts (curved labels)

Note: added in QGIS 2.10

Definition at line 39 of file qgspalgeometry.h.

Member Data Documentation

QStringList QgsTextLabelFeature::mClusters

protected

List of graphemes (used for curved labels)

Definition at line 127 of file qgspalgeometry.h.

QMap< QgsPalLayerSettings::DataDefinedProperties, QVariant > QgsTextLabelFeature::mDataDefinedValues

protected

Stores attribute values for data defined properties.

Definition at line 133 of file qgspalgeometry.h.

QFont QgsTextLabelFeature::mDefinedFont

protected

Font for rendering.

Definition at line 129 of file qgspalgeometry.h.

QFontMetricsF* QgsTextLabelFeature::mFontMetrics

protected

Metrics of the font for rendering.

Definition at line 131 of file qgspalgeometry.h.

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

/tmp/buildd/qgis-2.12.0+99unstable/src/core/qgspalgeometry.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation