QGIS API Documentation  2.99.0-Master (53aba61)
Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
QgsImageFillSymbolLayer Class Reference

Base class for polygon renderers generating texture images. More...

#include <qgsfillsymbollayer.h>

Inheritance diagram for QgsImageFillSymbolLayer:
Inheritance graph
[legend]

Public Member Functions

 QgsImageFillSymbolLayer ()
 
QColor dxfColor (QgsSymbolRenderContext &context) const override
 get color More...
 
Qt::PenStyle dxfPenStyle () const override
 get pen style More...
 
double dxfWidth (const QgsDxfExport &e, QgsSymbolRenderContext &context) const override
 get line width More...
 
virtual double estimateMaxBleed (const QgsRenderContext &context) const override
 Returns the estimated maximum distance which the layer style will bleed outside the drawn shape when drawn in the specified /a context. More...
 
QgsMapUnitScale mapUnitScale () const override
 
QgsUnitTypes::RenderUnit outputUnit () const override
 Returns the units to use for sizes and widths within the symbol layer. More...
 
void renderPolygon (const QPolygonF &points, QList< QPolygonF > *rings, QgsSymbolRenderContext &context) override
 
void setMapUnitScale (const QgsMapUnitScale &scale) override
 
void setOutputUnit (QgsUnitTypes::RenderUnit unit) override
 Sets the units to use for sizes and widths within the symbol layer. More...
 
void setStrokeWidthMapUnitScale (const QgsMapUnitScale &scale)
 
void setStrokeWidthUnit (QgsUnitTypes::RenderUnit unit)
 Sets the units for the symbol's stroke width. More...
 
virtual bool setSubSymbol (QgsSymbol *symbol) override
 set layer's subsymbol. takes ownership of the passed symbol More...
 
const QgsMapUnitScalestrokeWidthMapUnitScale () const
 
QgsUnitTypes::RenderUnit strokeWidthUnit () const
 Returns the units for the symbol's stroke width. More...
 
virtual QgsSymbolsubSymbol () override
 Returns the symbol's sub symbol, if present. More...
 
QSet< QString > usedAttributes (const QgsRenderContext &context) const override
 Returns the set of attributes referenced by the layer. More...
 
- Public Member Functions inherited from QgsFillSymbolLayer
double angle () const
 
void drawPreviewIcon (QgsSymbolRenderContext &context, QSize size) override
 
void setAngle (double angle)
 
- Public Member Functions inherited from QgsSymbolLayer
virtual ~QgsSymbolLayer ()
 
virtual QgsSymbolLayerclone () const =0
 Shall be reimplemented by subclasses to create a deep copy of the instance. More...
 
virtual QColor color () const
 The fill color. More...
 
QgsPropertyCollectiondataDefinedProperties ()
 Returns a reference to the symbol layer's property collection, used for data defined overrides. More...
 
const QgsPropertyCollectiondataDefinedProperties () 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 QVector< qreal > dxfCustomDashPattern (QgsUnitTypes::RenderUnit &unit) const
 get dash pattern More...
 
virtual double dxfOffset (const QgsDxfExport &e, QgsSymbolRenderContext &context) const
 get offset More...
 
bool enabled () const
 Returns true if symbol layer is enabled and will be drawn. More...
 
virtual QColor fillColor () const
 Get fill color. More...
 
virtual bool isCompatibleWithSymbol (QgsSymbol *symbol) const
 Returns if the layer can be used below the specified symbol. More...
 
bool isLocked () const
 
virtual QString layerType () const =0
 Returns a string that represents this layer type. More...
 
virtual QString ogrFeatureStyle (double mmScaleFactor, double mapUnitScaleFactor) const
 
QgsPaintEffectpaintEffect () 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...
 
virtual QgsStringMap properties () const =0
 Should be reimplemented by subclasses to return a string map that contains the configuration information for the symbol layer. More...
 
int renderingPass () const
 
virtual void setColor (const QColor &color)
 The fill color. 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)
 
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 void startRender (QgsSymbolRenderContext &context)=0
 
virtual void stopRender (QgsSymbolRenderContext &context)=0
 
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...
 

Protected Member Functions

virtual void applyDataDefinedSettings (QgsSymbolRenderContext &context)
 
- Protected Member Functions inherited from QgsFillSymbolLayer
 QgsFillSymbolLayer (bool locked=false)
 
void _renderPolygon (QPainter *p, const QPolygonF &points, const QList< QPolygonF > *rings, QgsSymbolRenderContext &context)
 Default method to render polygon. 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

QBrush mBrush
 
double mNextAngle
 
std::unique_ptr< QgsLineSymbolmStroke
 Custom stroke. More...
 
double mStrokeWidth
 Stroke width. More...
 
QgsMapUnitScale mStrokeWidthMapUnitScale
 
QgsUnitTypes::RenderUnit mStrokeWidthUnit
 
- Protected Attributes inherited from QgsFillSymbolLayer
double mAngle
 
- 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
 
QgsPaintEffectmPaintEffect = nullptr
 
int mRenderingPass
 
QgsSymbol::SymbolType mType
 

Additional Inherited Members

- Public Types inherited from QgsSymbolLayer
enum  Property {
  PropertySize = 0, PropertyAngle, PropertyName, PropertyFillColor,
  PropertyStrokeColor, PropertyStrokeWidth, PropertyStrokeStyle, PropertyOffset,
  PropertyCharacter, PropertyWidth, PropertyHeight, 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,
  PropertyHorizontalAnchor, PropertyVerticalAnchor, PropertyLayerEnabled, PropertyArrowWidth,
  PropertyArrowStartWidth, PropertyArrowHeadLength, PropertyArrowHeadThickness, PropertyArrowHeadType,
  PropertyArrowType
}
 Data definable properties. More...
 
- Static Public Member Functions inherited from QgsSymbolLayer
static const QgsPropertiesDefinitionpropertyDefinitions ()
 Returns the symbol layer property definitions. More...
 
- 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

Base class for polygon renderers generating texture images.

Definition at line 585 of file qgsfillsymbollayer.h.

Constructor & Destructor Documentation

◆ QgsImageFillSymbolLayer()

QgsImageFillSymbolLayer::QgsImageFillSymbolLayer ( )

Definition at line 1549 of file qgsfillsymbollayer.cpp.

Member Function Documentation

◆ applyDataDefinedSettings()

virtual void QgsImageFillSymbolLayer::applyDataDefinedSettings ( QgsSymbolRenderContext context)
inlineprotectedvirtual

◆ dxfColor()

QColor QgsImageFillSymbolLayer::dxfColor ( QgsSymbolRenderContext context) const
overridevirtual

get color

Reimplemented from QgsSymbolLayer.

Definition at line 1681 of file qgsfillsymbollayer.cpp.

◆ dxfPenStyle()

Qt::PenStyle QgsImageFillSymbolLayer::dxfPenStyle ( ) const
overridevirtual

get pen style

Reimplemented from QgsSymbolLayer.

Definition at line 1691 of file qgsfillsymbollayer.cpp.

◆ dxfWidth()

double QgsImageFillSymbolLayer::dxfWidth ( const QgsDxfExport e,
QgsSymbolRenderContext context 
) const
overridevirtual

get line width

Reimplemented from QgsSymbolLayer.

Definition at line 1670 of file qgsfillsymbollayer.cpp.

◆ estimateMaxBleed()

double QgsImageFillSymbolLayer::estimateMaxBleed ( const QgsRenderContext context) const
overridevirtual

Returns the estimated maximum distance which the layer style will bleed outside the drawn shape when drawn in the specified /a context.

For example, polygons drawn with an stroke will draw half the width of the stroke outside of the polygon. This amount is estimated, since it may be affected by data defined symbology rules.

Reimplemented from QgsSymbolLayer.

Reimplemented in QgsPointPatternFillSymbolLayer, QgsLinePatternFillSymbolLayer, and QgsRasterFillSymbolLayer.

Definition at line 1660 of file qgsfillsymbollayer.cpp.

◆ mapUnitScale()

QgsMapUnitScale QgsImageFillSymbolLayer::mapUnitScale ( ) const
overridevirtual

◆ outputUnit()

QgsUnitTypes::RenderUnit QgsImageFillSymbolLayer::outputUnit ( ) const
overridevirtual

Returns the units to use for sizes and widths within the symbol layer.

Individual symbol layer subclasses will interpret this in different ways, e.g., a marker symbol layer may use it to specify the units for the marker size, while a line symbol layer may use it to specify the units for the line width.

Returns
output unit, or QgsUnitTypes::RenderUnknownUnit if the symbol layer contains mixed units
See also
setOutputUnit()

Reimplemented from QgsSymbolLayer.

Reimplemented in QgsPointPatternFillSymbolLayer, QgsLinePatternFillSymbolLayer, and QgsSVGFillSymbolLayer.

Definition at line 1645 of file qgsfillsymbollayer.cpp.

◆ renderPolygon()

void QgsImageFillSymbolLayer::renderPolygon ( const QPolygonF &  points,
QList< QPolygonF > *  rings,
QgsSymbolRenderContext context 
)
overridevirtual

Implements QgsFillSymbolLayer.

Reimplemented in QgsRasterFillSymbolLayer.

Definition at line 1558 of file qgsfillsymbollayer.cpp.

◆ setMapUnitScale()

void QgsImageFillSymbolLayer::setMapUnitScale ( const QgsMapUnitScale scale)
overridevirtual

◆ setOutputUnit()

void QgsImageFillSymbolLayer::setOutputUnit ( QgsUnitTypes::RenderUnit  unit)
overridevirtual

Sets the units to use for sizes and widths within the symbol layer.

Individual symbol layer subclasses will interpret this in different ways, e.g., a marker symbol layer may use it to specify the units for the marker size, while a line symbol layer may use it to specify the units for the line width.

Parameters
unitoutput units
See also
outputUnit()

Reimplemented from QgsSymbolLayer.

Reimplemented in QgsPointPatternFillSymbolLayer, QgsLinePatternFillSymbolLayer, and QgsSVGFillSymbolLayer.

Definition at line 1640 of file qgsfillsymbollayer.cpp.

◆ setStrokeWidthMapUnitScale()

void QgsImageFillSymbolLayer::setStrokeWidthMapUnitScale ( const QgsMapUnitScale scale)
inline

Definition at line 606 of file qgsfillsymbollayer.h.

◆ setStrokeWidthUnit()

void QgsImageFillSymbolLayer::setStrokeWidthUnit ( QgsUnitTypes::RenderUnit  unit)
inline

Sets the units for the symbol's stroke width.

Parameters
unitsymbol units
See also
strokeWidthUnit()

Definition at line 599 of file qgsfillsymbollayer.h.

◆ setSubSymbol()

bool QgsImageFillSymbolLayer::setSubSymbol ( QgsSymbol symbol)
overridevirtual

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

Reimplemented from QgsSymbolLayer.

Reimplemented in QgsPointPatternFillSymbolLayer, QgsLinePatternFillSymbolLayer, and QgsRasterFillSymbolLayer.

Definition at line 1615 of file qgsfillsymbollayer.cpp.

◆ strokeWidthMapUnitScale()

const QgsMapUnitScale& QgsImageFillSymbolLayer::strokeWidthMapUnitScale ( ) const
inline

Definition at line 607 of file qgsfillsymbollayer.h.

◆ strokeWidthUnit()

QgsUnitTypes::RenderUnit QgsImageFillSymbolLayer::strokeWidthUnit ( ) const
inline

Returns the units for the symbol's stroke width.

See also
setStrokeWidthUnit()

Definition at line 604 of file qgsfillsymbollayer.h.

◆ subSymbol()

virtual QgsSymbol* QgsImageFillSymbolLayer::subSymbol ( )
inlineoverridevirtual

Returns the symbol's sub symbol, if present.

Reimplemented from QgsSymbolLayer.

Reimplemented in QgsPointPatternFillSymbolLayer, QgsLinePatternFillSymbolLayer, and QgsRasterFillSymbolLayer.

Definition at line 592 of file qgsfillsymbollayer.h.

◆ usedAttributes()

QSet< QString > QgsImageFillSymbolLayer::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.

Reimplemented in QgsPointPatternFillSymbolLayer, and QgsLinePatternFillSymbolLayer.

Definition at line 1706 of file qgsfillsymbollayer.cpp.

Member Data Documentation

◆ mBrush

QBrush QgsImageFillSymbolLayer::mBrush
protected

Definition at line 625 of file qgsfillsymbollayer.h.

◆ mNextAngle

double QgsImageFillSymbolLayer::mNextAngle
protected

Definition at line 626 of file qgsfillsymbollayer.h.

◆ mStroke

std::unique_ptr< QgsLineSymbol > QgsImageFillSymbolLayer::mStroke
protected

Custom stroke.

Definition at line 634 of file qgsfillsymbollayer.h.

◆ mStrokeWidth

double QgsImageFillSymbolLayer::mStrokeWidth
protected

Stroke width.

Definition at line 629 of file qgsfillsymbollayer.h.

◆ mStrokeWidthMapUnitScale

QgsMapUnitScale QgsImageFillSymbolLayer::mStrokeWidthMapUnitScale
protected

Definition at line 631 of file qgsfillsymbollayer.h.

◆ mStrokeWidthUnit

QgsUnitTypes::RenderUnit QgsImageFillSymbolLayer::mStrokeWidthUnit
protected

Definition at line 630 of file qgsfillsymbollayer.h.


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