#include <qgsgeometrygeneratorsymbollayer.h>

Inheritance diagram for QgsGeometryGeneratorSymbolLayer:

Public Member Functions
	~QgsGeometryGeneratorSymbolLayer () override

QgsSymbolLayer *	clone () const override
	Shall be reimplemented by subclasses to create a deep copy of the instance. More...

void	drawPreviewIcon (QgsSymbolRenderContext &context, QSize size) override

QString	geometryExpression () const
	Gets the expression to generate this geometry. More...

bool	hasDataDefinedProperties () const override
	Returns `true` if the symbol layer (or any of its sub-symbols) contains data defined properties. More...

bool	isCompatibleWithSymbol (QgsSymbol *symbol) const override
	Will always return `true`. More...

QString	layerType () const override
	Returns a string that represents this layer type. More...

QgsStringMap	properties () const override
	Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer. More...

virtual void	render (QgsSymbolRenderContext &context)
	Will render this symbol layer using the context. More...

void	setColor (const QColor &color) override
	The fill color. More...

void	setGeometryExpression (const QString &exp)
	Set the expression to generate this geometry. More...

bool	setSubSymbol (QgsSymbol *symbol) override
	Sets layer's subsymbol. takes ownership of the passed symbol. More...

void	setSymbolType (QgsSymbol::SymbolType symbolType)
	Set the type of symbol which should be created. More...

void	startRender (QgsSymbolRenderContext &context) override

void	stopRender (QgsSymbolRenderContext &context) override

QgsSymbol *	subSymbol () override
	Returns the symbol's sub symbol, if present. More...

QgsSymbol::SymbolType	symbolType () const
	Access the symbol type. More...

QSet< QString >	usedAttributes (const QgsRenderContext &context) const override
	Returns the set of attributes referenced by the layer. More...

Public Member Functions inherited from QgsSymbolLayer
virtual	~QgsSymbolLayer ()

virtual QColor	color () const
	The fill color. More...

QgsPropertyCollection &	dataDefinedProperties ()
	Returns a reference to the symbol layer's property collection, used for data defined overrides. More...

const QgsPropertyCollection &	dataDefinedProperties () const
	Returns a reference to the symbol layer's property collection, used for data defined overrides. More...

virtual double	dxfAngle (QgsSymbolRenderContext &context) const
	Gets angle. More...

virtual QColor	dxfBrushColor (QgsSymbolRenderContext &context) const
	Gets brush/fill color. More...

virtual Qt::BrushStyle	dxfBrushStyle () const
	Gets brush/fill style. More...

virtual QColor	dxfColor (QgsSymbolRenderContext &context) const
	Gets color. More...

virtual QVector< qreal >	dxfCustomDashPattern (QgsUnitTypes::RenderUnit &unit) const
	Gets dash pattern. More...

virtual double	dxfOffset (const QgsDxfExport &e, QgsSymbolRenderContext &context) const
	Gets offset. More...

virtual Qt::PenStyle	dxfPenStyle () const
	Gets pen style. More...

virtual double	dxfWidth (const QgsDxfExport &e, QgsSymbolRenderContext &context) const
	Gets line width. More...

bool	enabled () const
	Returns `true` if symbol layer is enabled and will be drawn. More...

virtual double	estimateMaxBleed (const QgsRenderContext &context) const
	Returns the estimated maximum distance which the layer style will bleed outside the drawn shape when drawn in the specified /a context. More...

virtual QColor	fillColor () const
	Gets fill color. More...

bool	isLocked () const

virtual QgsMapUnitScale	mapUnitScale () const

virtual QString	ogrFeatureStyle (double mmScaleFactor, double mapUnitScaleFactor) const

virtual QgsUnitTypes::RenderUnit	outputUnit () const
	Returns the units to use for sizes and widths within the symbol layer. More...

QgsPaintEffect *	paintEffect () const
	Returns the current paint effect for the layer. More...

virtual void	prepareExpressions (const QgsSymbolRenderContext &context)
	Prepares all data defined property expressions for evaluation. More...

int	renderingPass () const
	Specifies the rendering pass in which this symbol layer should be rendered. More...

void	setDataDefinedProperties (const QgsPropertyCollection &collection)
	Sets the symbol layer's property collection, used for data defined overrides. More...

virtual void	setDataDefinedProperty (Property key, const QgsProperty &property)
	Sets a data defined property for the layer. More...

void	setEnabled (bool enabled)
	Sets whether symbol layer is enabled and should be drawn. More...

virtual void	setFillColor (const QColor &color)
	Set fill color. More...

void	setLocked (bool locked)

virtual void	setMapUnitScale (const QgsMapUnitScale &scale)

virtual void	setOutputUnit (QgsUnitTypes::RenderUnit unit)
	Sets the units to use for sizes and widths within the symbol layer. More...

void	setPaintEffect (QgsPaintEffect *effect)
	Sets the current paint effect for the layer. More...

void	setRenderingPass (int renderingPass)
	Specifies the rendering pass in which this symbol layer should be rendered. More...

virtual void	setStrokeColor (const QColor &color)
	Set stroke color. More...

virtual QColor	strokeColor () const
	Gets stroke color. More...

virtual void	toSld (QDomDocument &doc, QDomElement &element, const QgsStringMap &props) const

QgsSymbol::SymbolType	type () const

virtual bool	writeDxf (QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolRenderContext &context, QPointF shift=QPointF(0.0, 0.0)) const
	write as DXF More...

Static Public Member Functions
static QgsSymbolLayer *	create (const QgsStringMap &properties)

Static Public Member Functions inherited from QgsSymbolLayer
static const QgsPropertiesDefinition &	propertyDefinitions ()
	Returns the symbol layer property definitions. More...

Additional Inherited Members
Public Types inherited from QgsSymbolLayer
enum	Property { PropertySize = 0, PropertyAngle, PropertyName, PropertyFillColor, PropertyStrokeColor, PropertyStrokeWidth, PropertyStrokeStyle, PropertyOffset, PropertyCharacter, PropertyWidth, PropertyHeight, PropertyPreserveAspectRatio, PropertyFillStyle, PropertyJoinStyle, PropertySecondaryColor, PropertyLineAngle, PropertyLineDistance, PropertyGradientType, PropertyCoordinateMode, PropertyGradientSpread, PropertyGradientReference1X, PropertyGradientReference1Y, PropertyGradientReference2X, PropertyGradientReference2Y, PropertyGradientReference1IsCentroid, PropertyGradientReference2IsCentroid, PropertyBlurRadius, PropertyShapeburstUseWholeShape, PropertyShapeburstMaxDistance, PropertyShapeburstIgnoreRings, PropertyFile, PropertyDistanceX, PropertyDistanceY, PropertyDisplacementX, PropertyDisplacementY, PropertyOpacity, PropertyCustomDash, PropertyCapStyle, PropertyPlacement, PropertyInterval, PropertyOffsetAlongLine, PropertyAverageAngleLength, PropertyHorizontalAnchor, PropertyVerticalAnchor, PropertyLayerEnabled, PropertyArrowWidth, PropertyArrowStartWidth, PropertyArrowHeadLength, PropertyArrowHeadThickness, PropertyArrowHeadType, PropertyArrowType, PropertyOffsetX, PropertyOffsetY }
	Data definable properties. More...

Protected Member Functions inherited from QgsSymbolLayer
	QgsSymbolLayer (QgsSymbol::SymbolType type, bool locked=false)

void	copyDataDefinedProperties (QgsSymbolLayer *destLayer) const
	Copies all data defined properties of this layer to another symbol layer. More...

void	copyPaintEffect (QgsSymbolLayer *destLayer) const
	Copies paint effect of this layer to another symbol layer. More...

void	restoreOldDataDefinedProperties (const QgsStringMap &stringMap)
	Restores older data defined properties from string map. More...

Protected Attributes inherited from QgsSymbolLayer
QColor	mColor

QgsPropertyCollection	mDataDefinedProperties

bool	mEnabled
	True if layer is enabled and should be drawn. More...

QgsFields	mFields

bool	mLocked

QgsPaintEffect *	mPaintEffect = nullptr

int	mRenderingPass = 0

QgsSymbol::SymbolType	mType

Static Protected Attributes inherited from QgsSymbolLayer
static const bool	SELECT_FILL_BORDER = false
	Whether fill styles for selected features also highlight symbol stroke. More...

static const bool	SELECT_FILL_STYLE = false
	Whether fill styles for selected features uses symbol layer style. More...

static const bool	SELECTION_IS_OPAQUE = true
	Whether styles for selected features ignore symbol alpha. More...

Detailed Description

Definition at line 26 of file qgsgeometrygeneratorsymbollayer.h.

Constructor & Destructor Documentation

◆ ~QgsGeometryGeneratorSymbolLayer()

QgsGeometryGeneratorSymbolLayer::~QgsGeometryGeneratorSymbolLayer ( )

override

Definition at line 19 of file qgsgeometrygeneratorsymbollayer.cpp.

Member Function Documentation

◆ clone()

QgsSymbolLayer * QgsGeometryGeneratorSymbolLayer::clone ( ) const

overridevirtual

Shall be reimplemented by subclasses to create a deep copy of the instance.

Implements QgsSymbolLayer.

Definition at line 104 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ create()

QgsSymbolLayer * QgsGeometryGeneratorSymbolLayer::create ( const QgsStringMap & properties )

static

Definition at line 26 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ drawPreviewIcon()

void QgsGeometryGeneratorSymbolLayer::drawPreviewIcon	(	QgsSymbolRenderContext &	context,
		QSize	size
	)

overridevirtual

Implements QgsSymbolLayer.

Definition at line 142 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ geometryExpression()

QString QgsGeometryGeneratorSymbolLayer::geometryExpression ( ) const

inline

Gets the expression to generate this geometry.

Definition at line 69 of file qgsgeometrygeneratorsymbollayer.h.

◆ hasDataDefinedProperties()

bool QgsGeometryGeneratorSymbolLayer::hasDataDefinedProperties ( ) const

overridevirtual

Returns true if the symbol layer (or any of its sub-symbols) contains data defined properties.

Since: QGIS 3.4.5

Reimplemented from QgsSymbolLayer.

Definition at line 185 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ isCompatibleWithSymbol()

bool QgsGeometryGeneratorSymbolLayer::isCompatibleWithSymbol ( QgsSymbol * symbol ) const

overridevirtual

Will always return true.

This is a hybrid layer, it constructs its own geometry so it does not care about the geometry of its parents.

Reimplemented from QgsSymbolLayer.

Definition at line 193 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ layerType()

QString QgsGeometryGeneratorSymbolLayer::layerType ( ) const

overridevirtual

Returns a string that represents this layer type.

Used for serialization. Should match with the string used to register this symbol layer in the registry.

Implements QgsSymbolLayer.

Definition at line 60 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ properties()

QgsStringMap QgsGeometryGeneratorSymbolLayer::properties ( ) const

overridevirtual

Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer.

This is used to serialize a symbol layer perstistently.

Implements QgsSymbolLayer.

Definition at line 123 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ render()

void QgsGeometryGeneratorSymbolLayer::render ( QgsSymbolRenderContext & context )

virtual

Will render this symbol layer using the context.

In comparison to other symbols there is no geometry passed in, since the geometry will be created based on information from the context which contains a QgsRenderContext which in turn contains an expression context which is available to the evaluated expression.

Parameters

context The rendering context which will be used to render and to construct a geometry.

Definition at line 198 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ setColor()

void QgsGeometryGeneratorSymbolLayer::setColor ( const QColor & color )

overridevirtual

The fill color.

Reimplemented from QgsSymbolLayer.

Definition at line 216 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ setGeometryExpression()

void QgsGeometryGeneratorSymbolLayer::setGeometryExpression ( const QString & exp )

Set the expression to generate this geometry.

Definition at line 148 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ setSubSymbol()

bool QgsGeometryGeneratorSymbolLayer::setSubSymbol ( QgsSymbol * symbol )

overridevirtual

Sets layer's subsymbol. takes ownership of the passed symbol.

Reimplemented from QgsSymbolLayer.

Definition at line 153 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ setSymbolType()

void QgsGeometryGeneratorSymbolLayer::setSymbolType ( QgsSymbol::SymbolType symbolType )

Set the type of symbol which should be created.

Should match with the return type of the expression.

Parameters

symbolType The symbol type which shall be used below this symbol.

Definition at line 65 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ startRender()

void QgsGeometryGeneratorSymbolLayer::startRender ( QgsSymbolRenderContext & context )

overridevirtual

Implements QgsSymbolLayer.

Definition at line 91 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ stopRender()

void QgsGeometryGeneratorSymbolLayer::stopRender ( QgsSymbolRenderContext & context )

overridevirtual

Implements QgsSymbolLayer.

Definition at line 98 of file qgsgeometrygeneratorsymbollayer.cpp.

◆ subSymbol()

QgsSymbol* QgsGeometryGeneratorSymbolLayer::subSymbol ( )

inlineoverridevirtual

Returns the symbol's sub symbol, if present.

Reimplemented from QgsSymbolLayer.

Definition at line 71 of file qgsgeometrygeneratorsymbollayer.h.

◆ symbolType()

QgsSymbol::SymbolType QgsGeometryGeneratorSymbolLayer::symbolType ( ) const

inline

Access the symbol type.

This defines the type of geometry that is created by this generator.

Returns: Symbol type

Definition at line 49 of file qgsgeometrygeneratorsymbollayer.h.

◆ usedAttributes()

QSet< QString > QgsGeometryGeneratorSymbolLayer::usedAttributes ( const QgsRenderContext & context ) const

overridevirtual

Returns the set of attributes referenced by the layer.

This includes attributes required by any data defined properties associated with the layer.

Reimplemented from QgsSymbolLayer.

Definition at line 178 of file qgsgeometrygeneratorsymbollayer.cpp.

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

/tmp/buildd/qgis-3.8.0+99unstable/src/core/symbology/qgsgeometrygeneratorsymbollayer.h
/tmp/buildd/qgis-3.8.0+99unstable/src/core/symbology/qgsgeometrygeneratorsymbollayer.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~QgsGeometryGeneratorSymbolLayer()

Member Function Documentation

◆ clone()

◆ create()

◆ drawPreviewIcon()

◆ geometryExpression()

◆ hasDataDefinedProperties()

◆ isCompatibleWithSymbol()

◆ layerType()

◆ properties()

◆ render()

◆ setColor()

◆ setGeometryExpression()

◆ setSubSymbol()

◆ setSymbolType()

◆ startRender()

◆ stopRender()

◆ subSymbol()

◆ symbolType()

◆ usedAttributes()