QgsTextMaskSettings Class Reference

Container for settings relating to a selective masking around a text. More...

#include <qgstextmasksettings.h>

Public Types
enum	MaskType { MaskBuffer = 0 }
	Mask shape types. More...

Public Member Functions
	QgsTextMaskSettings ()
	QgsTextMaskSettings (const QgsTextMaskSettings &other)
	Copy constructor. More...
	~QgsTextMaskSettings ()
bool	enabled () const
	Returns whether the mask is enabled. More...
Qt::PenJoinStyle	joinStyle () const
	Returns the buffer join style. More...
QList< QgsSymbolLayerReference >	maskedSymbolLayers () const
	Returns a list of references to symbol layers that are masked by this buffer. More...
double	opacity () const
	Returns the mask's opacity. More...
bool	operator!= (const QgsTextMaskSettings &other) const
QgsTextMaskSettings &	operator= (const QgsTextMaskSettings &other)
	Copy constructor. More...
bool	operator== (const QgsTextMaskSettings &other) const
QgsPaintEffect *	paintEffect () const
	Returns the current paint effect for the mask. More...
void	readXml (const QDomElement &elem)
	Read settings from a DOM element. More...
QSet< QString >	referencedFields (const QgsRenderContext &context) const
	Returns all field names referenced by the configuration (e.g. More...
void	setEnabled (bool)
	Returns whether the mask is enabled. More...
void	setJoinStyle (Qt::PenJoinStyle style)
	Sets the join style used for drawing the buffer. More...
void	setMaskedSymbolLayers (const QList< QgsSymbolLayerReference > &maskedLayers)
	Sets the symbol layers that will be masked by this buffer. More...
void	setOpacity (double opacity)
	Sets the mask's opacity. More...
void	setPaintEffect (QgsPaintEffect *effect)
	Sets the current paint effect for the mask. More...
void	setSize (double size)
	Sets the size of the buffer. More...
void	setSizeMapUnitScale (const QgsMapUnitScale &scale)
	Sets the map unit scale object for the buffer size. More...
void	setSizeUnit (QgsUnitTypes::RenderUnit unit)
	Sets the units used for the buffer size. More...
void	setType (MaskType type)
	Sets the type of mask shape. More...
double	size () const
	Returns the size of the buffer. More...
QgsMapUnitScale	sizeMapUnitScale () const
	Returns the map unit scale object for the buffer size. More...
QgsUnitTypes::RenderUnit	sizeUnit () const
	Returns the units for the buffer size. More...
MaskType	type () const
	Returns the type of mask shape. More...
void	updateDataDefinedProperties (QgsRenderContext &context, const QgsPropertyCollection &properties)
	Updates the format by evaluating current values of data defined properties. More...
QDomElement	writeXml (QDomDocument &doc) const
	Write settings into a DOM element. More...

Detailed Description

Container for settings relating to a selective masking around a text.

A selective masking only makes sense in contexts where the text is rendered over some other map layers, especially for labeling.

Note

QgsTextMaskSettings objects are implicitly shared.

Since

QGIS 3.12

Definition at line 41 of file qgstextmasksettings.h.

Member Enumeration Documentation

MaskType

enum QgsTextMaskSettings::MaskType

Mask shape types.

Enumerator
MaskBuffer	Buffer.

Definition at line 48 of file qgstextmasksettings.h.

Constructor & Destructor Documentation

QgsTextMaskSettings() [1/2]

QgsTextMaskSettings::QgsTextMaskSettings

(

)

Definition at line 22 of file qgstextmasksettings.cpp.

QgsTextMaskSettings() [2/2]

QgsTextMaskSettings::QgsTextMaskSettings

(

const QgsTextMaskSettings &

other

)

Copy constructor.

Parameters

other

source settings

Definition at line 29 of file qgstextmasksettings.cpp.

~QgsTextMaskSettings()

QgsTextMaskSettings::~QgsTextMaskSettings ( )

default

Member Function Documentation

enabled()

bool QgsTextMaskSettings::enabled

(

)

const

Returns whether the mask is enabled.

Definition at line 64 of file qgstextmasksettings.cpp.

joinStyle()

Qt::PenJoinStyle QgsTextMaskSettings::joinStyle

(

)

const

Returns the buffer join style.

See also

setJoinStyle

Definition at line 115 of file qgstextmasksettings.cpp.

maskedSymbolLayers()

QList< QgsSymbolLayerReference > QgsTextMaskSettings::maskedSymbolLayers

(

)

const

Returns a list of references to symbol layers that are masked by this buffer.

Returns

a list of references to masked symbol layers

See also

setMaskedSymbolLayers

Definition at line 235 of file qgstextmasksettings.cpp.

opacity()

double QgsTextMaskSettings::opacity

(

)

const

Returns the mask's opacity.

The opacity is a double value between 0 (fully transparent) and 1 (totally opaque).

See also

setOpacity()

Definition at line 125 of file qgstextmasksettings.cpp.

operator!=()

bool QgsTextMaskSettings::operator!=

(

const QgsTextMaskSettings &

other

)

const

Definition at line 59 of file qgstextmasksettings.cpp.

operator=()

QgsTextMaskSettings & QgsTextMaskSettings::operator=

(

const QgsTextMaskSettings &

other

)

Copy constructor.

Parameters

other

source QgsTextMaskSettings

Definition at line 34 of file qgstextmasksettings.cpp.

operator==()

bool QgsTextMaskSettings::operator==

(

const QgsTextMaskSettings &

other

)

const

Definition at line 40 of file qgstextmasksettings.cpp.

paintEffect()

QgsPaintEffect * QgsTextMaskSettings::paintEffect

(

)

const

Returns the current paint effect for the mask.

Returns

paint effect

See also

setPaintEffect()

Definition at line 135 of file qgstextmasksettings.cpp.

readXml()

void QgsTextMaskSettings::readXml

(

const QDomElement &

elem

)

Read settings from a DOM element.

See also

writeXml()

Definition at line 201 of file qgstextmasksettings.cpp.

referencedFields()

QSet< QString > QgsTextMaskSettings::referencedFields

(

const QgsRenderContext &

context

)

const

Returns all field names referenced by the configuration (e.g.

from data defined properties).

Since

QGIS 3.14

Definition at line 196 of file qgstextmasksettings.cpp.

setEnabled()

void QgsTextMaskSettings::setEnabled

(

bool

enabled

)

Returns whether the mask is enabled.

Definition at line 69 of file qgstextmasksettings.cpp.

setJoinStyle()

void QgsTextMaskSettings::setJoinStyle

(

Qt::PenJoinStyle

style

)

Sets the join style used for drawing the buffer.

Parameters

style

join style

See also

joinStyle()

Definition at line 120 of file qgstextmasksettings.cpp.

setMaskedSymbolLayers()

void QgsTextMaskSettings::setMaskedSymbolLayers

(

const QList< QgsSymbolLayerReference > &

maskedLayers

)

Sets the symbol layers that will be masked by this buffer.

Parameters

maskedLayers

list of references to symbol layers

See also

setMaskedSymbolLayers

Definition at line 240 of file qgstextmasksettings.cpp.

setOpacity()

void QgsTextMaskSettings::setOpacity

(

double

opacity

)

Sets the mask's opacity.

Parameters

opacity

opacity as a double value between 0 (fully transparent) and 1 (totally opaque)

See also

opacity()

Definition at line 130 of file qgstextmasksettings.cpp.

setPaintEffect()

void QgsTextMaskSettings::setPaintEffect

(

QgsPaintEffect *

effect

)

Sets the current paint effect for the mask.

Parameters

effect

paint effect. Ownership is transferred to the mask settings.

See also

paintEffect()

Definition at line 140 of file qgstextmasksettings.cpp.

setSize()

void QgsTextMaskSettings::setSize

(

double

size

)

Sets the size of the buffer.

The size units are specified using setSizeUnit().

Parameters

size	buffer size

See also

size()

setSizeUnit()

Definition at line 90 of file qgstextmasksettings.cpp.

setSizeMapUnitScale()

void QgsTextMaskSettings::setSizeMapUnitScale

(

const QgsMapUnitScale &

scale

)

Sets the map unit scale object for the buffer size.

This is only used if the buffer size is set to QgsUnitTypes::RenderMapUnit.

Parameters

scale

scale for buffer size

See also

sizeMapUnitScale()

setSizeUnit()

Definition at line 110 of file qgstextmasksettings.cpp.

setSizeUnit()

void QgsTextMaskSettings::setSizeUnit

(

QgsUnitTypes::RenderUnit

unit

)

Sets the units used for the buffer size.

Parameters

unit

size unit

See also

setSize()

sizeUnit()

Definition at line 100 of file qgstextmasksettings.cpp.

setType()

void QgsTextMaskSettings::setType

(

QgsTextMaskSettings::MaskType

type

)

Sets the type of mask shape.

Parameters

type	shape type

See also

type()

Definition at line 79 of file qgstextmasksettings.cpp.

size()

double QgsTextMaskSettings::size

(

)

const

Returns the size of the buffer.

See also

sizeUnit()

setSize()

Definition at line 85 of file qgstextmasksettings.cpp.

sizeMapUnitScale()

QgsMapUnitScale QgsTextMaskSettings::sizeMapUnitScale

(

)

const

Returns the map unit scale object for the buffer size.

This is only used if the buffer size is set to QgsUnitTypes::RenderMapUnit.

See also

setSizeMapUnitScale()

sizeUnit()

Definition at line 105 of file qgstextmasksettings.cpp.

sizeUnit()

QgsUnitTypes::RenderUnit QgsTextMaskSettings::sizeUnit

(

)

const

Returns the units for the buffer size.

See also

size()

setSizeUnit()

Definition at line 95 of file qgstextmasksettings.cpp.

type()

QgsTextMaskSettings::MaskType QgsTextMaskSettings::type

(

)

const

Returns the type of mask shape.

See also

setType()

Definition at line 74 of file qgstextmasksettings.cpp.

updateDataDefinedProperties()

void QgsTextMaskSettings::updateDataDefinedProperties	(	QgsRenderContext &	context,
		const QgsPropertyCollection &	properties
	)

Updates the format by evaluating current values of data defined properties.

Definition at line 145 of file qgstextmasksettings.cpp.

writeXml()

QDomElement QgsTextMaskSettings::writeXml

(

QDomDocument &

doc

)

const

Write settings into a DOM element.

See also

readXml()

Definition at line 219 of file qgstextmasksettings.cpp.

---

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

• /build/qgis-3.22.4+99unstable/src/core/textrenderer/qgstextmasksettings.h
• /build/qgis-3.22.4+99unstable/src/core/textrenderer/qgstextmasksettings.cpp