37 void QgsSymbolLayer::initPropertyDefinitions()
39 if ( !sPropertyDefinitions.isEmpty() )
42 QString origin = QStringLiteral(
"symbol" );
108 Q_UNUSED( mmMapUnitScaleFactor );
109 Q_UNUSED( layerName );
144 return QVector<qreal>();
149 return Qt::SolidLine;
198 QgsSymbolLayer::initPropertyDefinitions();
199 return sPropertyDefinitions;
224 if ( !baseName.isEmpty() )
226 prefix.append( QStringLiteral(
"%1_dd_" ).arg( baseName ) );
229 if ( !map.contains( QStringLiteral(
"%1expression" ).arg( prefix ) ) )
235 bool active = ( map.value( QStringLiteral(
"%1active" ).arg( prefix ), QStringLiteral(
"1" ) ) != QLatin1String(
"0" ) );
236 QString expression = map.value( QStringLiteral(
"%1expression" ).arg( prefix ) );
237 bool useExpression = ( map.value( QStringLiteral(
"%1useexpr" ).arg( prefix ), QStringLiteral(
"1" ) ) != QLatin1String(
"0" ) );
238 QString field = map.value( QStringLiteral(
"%1field" ).arg( prefix ), QString() );
247 static const QMap< QString, QgsSymbolLayer::Property > OLD_PROPS
324 QgsStringMap::const_iterator propIt = stringMap.constBegin();
325 for ( ; propIt != stringMap.constEnd(); ++propIt )
328 QString propertyName;
330 if ( propIt.key().endsWith( QLatin1String(
"_dd_expression" ) ) )
335 propertyName = propIt.key().left( propIt.key().length() - 14 );
339 else if ( propIt.key().endsWith( QLatin1String(
"_expression" ) ) )
344 propertyName = propIt.key().left( propIt.key().length() - 11 );
349 if ( !prop || !OLD_PROPS.contains( propertyName ) )
357 if ( propertyName == QLatin1String(
"width" ) )
359 else if ( propertyName == QLatin1String(
"color" ) )
408 if ( effect && effect->
enabled() )
411 renderPoint( QPointF( size.width() / 2, size.height() / 2 ), context );
415 renderPoint( QPointF( size.width() / 2, size.height() / 2 ), context );
422 markerOffset( context, mSize, mSize, mSizeUnit, mSizeUnit, offsetX, offsetY, mSizeMapUnitScale, mSizeMapUnitScale );
427 markerOffset( context, width, height, mSizeUnit, mSizeUnit, offsetX, offsetY, mSizeMapUnitScale, mSizeMapUnitScale );
434 offsetX = mOffset.x();
435 offsetY = mOffset.y();
441 if ( exprVal.isValid() )
444 offsetX = offset.x();
445 offsetY = offset.y();
457 if ( exprVal.isValid() )
459 horizontalAnchorPoint = decodeHorizontalAnchorPoint( exprVal.toString() );
465 if ( exprVal.isValid() )
467 verticalAnchorPoint = decodeVerticalAnchorPoint( exprVal.toString() );
472 if ( horizontalAnchorPoint == HCenter && verticalAnchorPoint == VCenter )
479 if ( horizontalAnchorPoint == Left )
481 offsetX += anchorPointCorrectionX;
483 else if ( horizontalAnchorPoint == Right )
485 offsetX -= anchorPointCorrectionX;
489 if ( verticalAnchorPoint == Top )
491 offsetY += anchorPointCorrectionY;
493 else if ( verticalAnchorPoint == Bottom )
495 offsetY -= anchorPointCorrectionY;
502 double c = std::cos( angle ), s = std::sin( angle );
503 return QPointF( offset.x() * c - offset.y() * s, offset.x() * s + offset.y() *
c );
508 if ( str.compare( QLatin1String(
"left" ), Qt::CaseInsensitive ) == 0 )
512 else if ( str.compare( QLatin1String(
"right" ), Qt::CaseInsensitive ) == 0 )
524 if ( str.compare( QLatin1String(
"top" ), Qt::CaseInsensitive ) == 0 )
528 else if ( str.compare( QLatin1String(
"bottom" ), Qt::CaseInsensitive ) == 0 )
546 if ( mOffsetUnit != mSizeUnit )
555 mSizeMapUnitScale = scale;
556 mOffsetMapUnitScale = scale;
561 if ( mSizeMapUnitScale == mOffsetMapUnitScale )
563 return mSizeMapUnitScale;
580 mWidthMapUnitScale = scale;
585 return mWidthMapUnitScale;
594 points << QPointF( 0,
int( size.height() / 2 ) + 0.5 ) << QPointF( size.width(), int( size.height() / 2 ) + 0.5 );
598 if ( effect && effect->
enabled() )
601 renderPolyline( points, context );
605 renderPolyline( points, context );
612 renderPolyline( points, context );
615 Q_FOREACH (
const QPolygonF &ring, *rings )
616 renderPolyline( ring, context );
629 QPolygonF poly = QRectF( QPointF( 0, 0 ), QPointF( size.width(), size.height() ) );
632 if ( effect && effect->
enabled() )
652 if ( points.size() <= 5 &&
655 ( p->renderHints() & QPainter::Antialiasing ) )
657 p->setRenderHint( QPainter::Antialiasing,
false );
658 p->drawRect( points.boundingRect() );
659 p->setRenderHint( QPainter::Antialiasing,
true );
665 if ( !rings && p->pen().style() == Qt::NoPen )
668 p->drawPolygon( points );
674 path.addPolygon( points );
678 QList<QPolygonF>::const_iterator it = rings->constBegin();
679 for ( ; it != rings->constEnd(); ++it )
681 QPolygonF ring = *it;
682 path.addPolygon( ring );
692 QDomElement symbolizerElem = doc.createElement( QStringLiteral(
"se:PointSymbolizer" ) );
693 if ( !props.value( QStringLiteral(
"uom" ), QLatin1String(
"" ) ).isEmpty() )
694 symbolizerElem.setAttribute( QStringLiteral(
"uom" ), props.value( QStringLiteral(
"uom" ), QLatin1String(
"" ) ) );
695 element.appendChild( symbolizerElem );
700 writeSldMarker( doc, symbolizerElem, props );
void setProperty(int key, const QgsProperty &property)
Adds a property to the collection and takes ownership of it.
QgsMapUnitScale mapUnitScale() const override
virtual QVector< qreal > dxfCustomDashPattern(QgsUnitTypes::RenderUnit &unit) const
Gets dash pattern.
Gradient reference point 1 is centroid.
double symbologyScale() const
Returns the reference scale for output.
QgsLineSymbolLayer(bool locked=false)
void setMapUnitScale(const QgsMapUnitScale &scale) override
const QgsVectorSimplifyMethod & vectorSimplifyMethod() const
Added in QGIS v2.4.
Gradient reference point 1 x.
QgsFields fields() const
Fields of the layer.
QgsUnitTypes::RenderUnit outputUnit() const override
Returns the units to use for sizes and widths within the symbol layer.
QgsPaintEffect * paintEffect() const
Returns the current paint effect for the layer.
1D size (eg marker radius, or square marker height/width)
virtual double dxfOffset(const QgsDxfExport &e, QgsSymbolRenderContext &context) const
Gets offset.
Align to right side of symbol.
virtual void prepareExpressions(const QgsSymbolRenderContext &context)
Prepares all data defined property expressions for evaluation.
void startRender(QgsSymbolRenderContext &context) override
static QgsProperty fromField(const QString &fieldName, bool isActive=true)
Returns a new FieldBasedProperty created from the specified field name.
static QPointF decodePoint(const QString &string)
Decodes a QSizeF from a string.
Base class for visual effects which can be applied to QPicture drawings.
static QgsProperty fromExpression(const QString &expression, bool isActive=true)
Returns a new ExpressionBasedProperty created from the specified expression.
void copyPaintEffect(QgsSymbolLayer *destLayer) const
Copies paint effect of this layer to another symbol layer.
void restoreOldDataDefinedProperties(const QgsStringMap &stringMap)
Restores older data defined properties from string map.
void _renderPolygon(QPainter *p, const QPolygonF &points, const QList< QPolygonF > *rings, QgsSymbolRenderContext &context)
Default method to render polygon.
Color with alpha channel.
QgsUnitTypes::DistanceUnit mapUnits() const
Retrieve map units.
virtual double dxfWidth(const QgsDxfExport &e, QgsSymbolRenderContext &context) const
Gets line width.
Positive double value (including 0)
void drawPreviewIcon(QgsSymbolRenderContext &context, QSize size) override
Align to horizontal center of symbol.
double dxfWidth(const QgsDxfExport &e, QgsSymbolRenderContext &context) const override
Gets line width.
QMap< QString, QString > QgsStringMap
Shapeburst use whole shape.
static QString encodePoint(QPointF point)
Encodes a QPointF to a string.
Rotation (value between 0-360 degrees)
Name, eg shape name for simple markers.
Gradient reference point 2 y.
virtual QgsPaintEffect * clone() const =0
Duplicates an effect by creating a deep copy of the effect.
bool isActive(int key) const override
Returns true if the collection contains an active property with the specified key.
QgsProperty propertyFromMap(const QgsStringMap &map, const QString &baseName)
QgsSymbolLayer(QgsSymbol::SymbolType type, bool locked=false)
As part of the API refactoring and improvements which landed in the Processing API was substantially reworked from the x version This was done in order to allow much of the underlying Processing framework to be ported into c
virtual void renderPolygon(const QPolygonF &points, QList< QPolygonF > *rings, QgsSymbolRenderContext &context)=0
SymbolType
Type of the symbol.
QVariant value(int key, const QgsExpressionContext &context, const QVariant &defaultValue=QVariant()) const override
Returns the calculated value of the property with the specified key from within the collection...
void setOriginalValueVariable(const QVariant &value)
Sets the original value variable value for data defined symbology.
bool prepare(const QgsExpressionContext &context=QgsExpressionContext()) const override
Prepares the collection against a specified expression context.
void setEnabled(bool enabled)
Sets whether the effect is enabled.
Align to bottom of symbol.
static QgsPaintEffect * defaultStack()
Returns a new effect stack consisting of a sensible selection of default effects. ...
QgsUnitTypes::RenderUnit outputUnit() const override
Returns the units to use for sizes and widths within the symbol layer.
The geometries can be rendered with 'AntiAliasing' disabled because of it is '1-pixel size'...
Gradient coordinate mode.
QgsPropertyCollection & dataDefinedProperties()
Returns a reference to the symbol layer's property collection, used for data defined overrides...
virtual Qt::BrushStyle dxfBrushStyle() const
Gets brush/fill style.
static double mapUnitScaleFactor(double scale, QgsUnitTypes::RenderUnit symbolUnits, QgsUnitTypes::DistanceUnit mapUnits, double mapUnitsPerPixel=1.0)
Returns scale factor for conversion to map units.
Property requires a numeric value.
virtual QColor color() const
The fill color.
Filename, eg for svg files.
float threshold() const
Gets the simplification threshold of the vector layer managed.
Align to left side of symbol.
void drawPreviewIcon(QgsSymbolRenderContext &context, QSize size) override
void markerOffset(QgsSymbolRenderContext &context, double &offsetX, double &offsetY) const
Calculates the required marker offset, including both the symbol offset and any displacement required...
Shapeburst fill from edge distance.
QgsSymbol::SymbolType type() const
void setPaintEffect(QgsPaintEffect *effect)
Sets the current paint effect for the layer.
bool enabled() const
Returns whether the effect is enabled.
Character, eg for font marker symbol layers.
double mapUnitsPerPixel() const
Returns current map units per pixel.
A store for object properties.
Fill style (eg solid, lines)
QgsRenderContext & renderContext()
Returns a reference to the context's render context.
Definition for a property.
HorizontalAnchorPoint
Symbol horizontal anchor points.
Gradient reference point 1 y.
virtual QColor dxfBrushColor(QgsSymbolRenderContext &context) const
Gets brush/fill color.
QMap< int, QgsPropertyDefinition > QgsPropertiesDefinition
Definition of available properties.
VerticalAnchorPoint
Symbol vertical anchor points.
static void createGeometryElement(QDomDocument &doc, QDomElement &element, const QString &geomFunc)
QgsExpressionContext & expressionContext()
Gets the expression context.
virtual Qt::PenStyle dxfPenStyle() const
Gets pen style.
virtual bool isCompatibleWithSymbol(QgsSymbol *symbol) const
Returns if the layer can be used below the specified symbol.
QSet< QString > referencedFields(const QgsExpressionContext &context=QgsExpressionContext()) const override
Returns the set of any fields referenced by the active properties from the collection.
Stroke style (eg solid, dashed)
Preserve aspect ratio between width and height.
virtual QSet< QString > usedAttributes(const QgsRenderContext &context) const
Returns the set of attributes referenced by the layer.
Contains information about the context of a rendering operation.
double convertToPainterUnits(double size, QgsUnitTypes::RenderUnit unit, const QgsMapUnitScale &scale=QgsMapUnitScale()) const
Converts a size from the specified units to painter units (pixels).
const QgsMapToPixel & mapToPixel() const
Property requires a string value.
Struct for storing maximum and minimum scales for measurements in map units.
virtual void stopRender(QgsSymbolRenderContext &context)=0
void setMapUnitScale(const QgsMapUnitScale &scale) override
virtual double dxfAngle(QgsSymbolRenderContext &context) const
Gets angle.
QgsMarkerSymbolLayer(bool locked=false)
Constructor for QgsMarkerSymbolLayer.
virtual QColor dxfColor(QgsSymbolRenderContext &context) const
Gets color.
QgsPaintEffect * mPaintEffect
Line style (eg solid/dashed)
SimplifyHints simplifyHints() const
Gets the simplification hints of the vector layer managed.
Align to vertical center of symbol.
Secondary color (eg for gradient fills)
bool isEmpty() const
Check whether the container is empty.
bool mEnabled
True if layer is enabled and should be drawn.
virtual ~QgsSymbolLayer()
virtual void renderPolygonStroke(const QPolygonF &points, QList< QPolygonF > *rings, QgsSymbolRenderContext &context)
QgsFillSymbolLayer(bool locked=false)
static QPointF _rotatedOffset(QPointF offset, double angle)
Adjusts a marker offset to account for rotation.
void toSld(QDomDocument &doc, QDomElement &element, const QgsStringMap &props) const override
static const QgsPropertiesDefinition & propertyDefinitions()
Returns the symbol layer property definitions.
virtual bool writeDxf(QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolRenderContext &context, QPointF shift=QPointF(0.0, 0.0)) const
write as DXF
static bool isGeneralizableByDeviceBoundingBox(const QgsRectangle &envelope, float mapToPixelTol=1.0f)
Returns whether the device-envelope can be replaced by its BBOX when is applied the specified toleran...
Line cap style (eg round)
Fill style (eg solid, dots)
Whether symbol layer is enabled.
void setOutputUnit(QgsUnitTypes::RenderUnit unit) override
Sets the units to use for sizes and widths within the symbol layer.
Gradient reference point 2 is centroid.
A class to manager painter saving and restoring required for effect drawing.
QgsSymbol::SymbolType mType
Gradient reference point 2 x.
QgsPropertyCollection mDataDefinedProperties
QgsMapUnitScale mapUnitScale() const override
void setDataDefinedProperties(const QgsPropertyCollection &collection)
Sets the symbol layer's property collection, used for data defined overrides.
void setOutputUnit(QgsUnitTypes::RenderUnit unit) override
Sets the units to use for sizes and widths within the symbol layer.
Property
Data definable properties.
RenderUnit
Rendering size units.
virtual void setDataDefinedProperty(Property key, const QgsProperty &property)
Sets a data defined property for the layer.
void copyDataDefinedProperties(QgsSymbolLayer *destLayer) const
Copies all data defined properties of this layer to another symbol layer.
virtual void startRender(QgsSymbolRenderContext &context)=0
Horizontal distance between points.
void drawPreviewIcon(QgsSymbolRenderContext &context, QSize size) override
Vertical distance between points.
Double value between 0-1 (inclusive)