QGIS API Documentation
3.0.2-Girona (307d082)
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#include <qgsgeometrygeneratorsymbollayer.h>
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 |
Get the expression to generate this geometry. 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 |
set 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 |
get angle More... | |
virtual QColor | dxfBrushColor (QgsSymbolRenderContext &context) const |
get brush/fill color More... | |
virtual Qt::BrushStyle | dxfBrushStyle () const |
get brush/fill style More... | |
virtual QColor | dxfColor (QgsSymbolRenderContext &context) const |
get color More... | |
virtual QVector< qreal > | dxfCustomDashPattern (QgsUnitTypes::RenderUnit &unit) const |
get dash pattern More... | |
virtual double | dxfOffset (const QgsDxfExport &e, QgsSymbolRenderContext &context) const |
get offset More... | |
virtual Qt::PenStyle | dxfPenStyle () const |
get pen style More... | |
virtual double | dxfWidth (const QgsDxfExport &e, QgsSymbolRenderContext &context) const |
get 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 |
Get 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 |
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) |
virtual void | setStrokeColor (const QColor &color) |
Set stroke color. More... | |
virtual QColor | strokeColor () const |
Get 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... | |
Definition at line 26 of file qgsgeometrygeneratorsymbollayer.h.
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override |
Definition at line 19 of file qgsgeometrygeneratorsymbollayer.cpp.
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overridevirtual |
Shall be reimplemented by subclasses to create a deep copy of the instance.
Implements QgsSymbolLayer.
Definition at line 104 of file qgsgeometrygeneratorsymbollayer.cpp.
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static |
Definition at line 26 of file qgsgeometrygeneratorsymbollayer.cpp.
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overridevirtual |
Implements QgsSymbolLayer.
Definition at line 142 of file qgsgeometrygeneratorsymbollayer.cpp.
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inline |
Get the expression to generate this geometry.
Definition at line 69 of file qgsgeometrygeneratorsymbollayer.h.
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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 185 of file qgsgeometrygeneratorsymbollayer.cpp.
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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.
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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.
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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.
context | The rendering context which will be used to render and to construct a geometry. |
Definition at line 190 of file qgsgeometrygeneratorsymbollayer.cpp.
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overridevirtual |
The fill color.
Reimplemented from QgsSymbolLayer.
Definition at line 208 of file qgsgeometrygeneratorsymbollayer.cpp.
void QgsGeometryGeneratorSymbolLayer::setGeometryExpression | ( | const QString & | exp | ) |
Set the expression to generate this geometry.
Definition at line 148 of file qgsgeometrygeneratorsymbollayer.cpp.
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overridevirtual |
set layer's subsymbol. takes ownership of the passed symbol
Reimplemented from QgsSymbolLayer.
Definition at line 153 of file qgsgeometrygeneratorsymbollayer.cpp.
void QgsGeometryGeneratorSymbolLayer::setSymbolType | ( | QgsSymbol::SymbolType | symbolType | ) |
Set the type of symbol which should be created.
Should match with the return type of the expression.
symbolType | The symbol type which shall be used below this symbol. |
Definition at line 65 of file qgsgeometrygeneratorsymbollayer.cpp.
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overridevirtual |
Implements QgsSymbolLayer.
Definition at line 91 of file qgsgeometrygeneratorsymbollayer.cpp.
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overridevirtual |
Implements QgsSymbolLayer.
Definition at line 98 of file qgsgeometrygeneratorsymbollayer.cpp.
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inlineoverridevirtual |
Returns the symbol's sub symbol, if present.
Reimplemented from QgsSymbolLayer.
Definition at line 71 of file qgsgeometrygeneratorsymbollayer.h.
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inline |
Access the symbol type.
This defines the type of geometry that is created by this generator.
Definition at line 49 of file qgsgeometrygeneratorsymbollayer.h.
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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.