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qgssymbollayer.cpp
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qgssymbollayer.cpp
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/***************************************************************************
qgssymbollayer.cpp
---------------------
begin : November 2009
copyright : (C) 2009 by Martin Dobias
email : wonder dot sk at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgssymbollayer.h"
#include "qgsclipper.h"
#include "qgsexpression.h"
#include "qgsrendercontext.h"
#include "qgsvectorlayer.h"
#include "qgsdxfexport.h"
#include "qgsgeometrysimplifier.h"
#include "qgspainteffect.h"
#include "qgseffectstack.h"
#include "qgspainteffectregistry.h"
#include "qgsproperty.h"
#include "qgsexpressioncontext.h"
#include "qgssymbollayerutils.h"
#include "qgsapplication.h"
#include "qgsmultipoint.h"
#include "qgslegendpatchshape.h"
#include "qgsstyle.h"
#include "qgsexpressioncontextutils.h"
#include "qgssymbol.h"
#include "qgssymbollayerreference.h"
#include <QSize>
#include <QPainter>
#include <QPointF>
#include <QPolygonF>
QgsPropertiesDefinition QgsSymbolLayer::sPropertyDefinitions;
void QgsSymbolLayer::initPropertyDefinitions()
{
if ( !sPropertyDefinitions.isEmpty() )
return;
QString origin = QStringLiteral( "symbol" );
sPropertyDefinitions = QgsPropertiesDefinition
{
{ QgsSymbolLayer::PropertySize, QgsPropertyDefinition( "size", QObject::tr( "Symbol size" ), QgsPropertyDefinition::Size, origin ) },
{ QgsSymbolLayer::PropertyAngle, QgsPropertyDefinition( "angle", QObject::tr( "Rotation angle" ), QgsPropertyDefinition::Rotation, origin ) },
{ QgsSymbolLayer::PropertyName, QgsPropertyDefinition( "name", QObject::tr( "Symbol name" ), QgsPropertyDefinition::String, origin ) },
{ QgsSymbolLayer::PropertyFillColor, QgsPropertyDefinition( "fillColor", QObject::tr( "Symbol fill color" ), QgsPropertyDefinition::ColorWithAlpha, origin ) },
{ QgsSymbolLayer::PropertyStrokeColor, QgsPropertyDefinition( "outlineColor", QObject::tr( "Symbol stroke color" ), QgsPropertyDefinition::ColorWithAlpha, origin ) },
{ QgsSymbolLayer::PropertyStrokeWidth, QgsPropertyDefinition( "outlineWidth", QObject::tr( "Symbol stroke width" ), QgsPropertyDefinition::StrokeWidth, origin ) },
{ QgsSymbolLayer::PropertyStrokeStyle, QgsPropertyDefinition( "outlineStyle", QObject::tr( "Symbol stroke style" ), QgsPropertyDefinition::LineStyle, origin )},
{ QgsSymbolLayer::PropertyOffset, QgsPropertyDefinition( "offset", QObject::tr( "Symbol offset" ), QgsPropertyDefinition::Offset, origin )},
{ QgsSymbolLayer::PropertyCharacter, QgsPropertyDefinition( "char", QObject::tr( "Marker character(s)" ), QgsPropertyDefinition::String, origin )},
{ QgsSymbolLayer::PropertyFontFamily, QgsPropertyDefinition( "fontFamily", QObject::tr( "Font family" ), QgsPropertyDefinition::String, origin )},
{ QgsSymbolLayer::PropertyFontStyle, QgsPropertyDefinition( "fontStyle", QObject::tr( "Font style" ), QgsPropertyDefinition::String, origin )},
{ QgsSymbolLayer::PropertyWidth, QgsPropertyDefinition( "width", QObject::tr( "Symbol width" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyHeight, QgsPropertyDefinition( "height", QObject::tr( "Symbol height" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyPreserveAspectRatio, QgsPropertyDefinition( "preserveAspectRatio", QObject::tr( "Preserve aspect ratio between width and height" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyFillStyle, QgsPropertyDefinition( "fillStyle", QObject::tr( "Symbol fill style" ), QgsPropertyDefinition::FillStyle, origin )},
{ QgsSymbolLayer::PropertyJoinStyle, QgsPropertyDefinition( "joinStyle", QObject::tr( "Outline join style" ), QgsPropertyDefinition::PenJoinStyle, origin )},
{ QgsSymbolLayer::PropertySecondaryColor, QgsPropertyDefinition( "color2", QObject::tr( "Secondary fill color" ), QgsPropertyDefinition::ColorWithAlpha, origin )},
{ QgsSymbolLayer::PropertyLineAngle, QgsPropertyDefinition( "lineAngle", QObject::tr( "Angle for line fills" ), QgsPropertyDefinition::Rotation, origin )},
{ QgsSymbolLayer::PropertyGradientType, QgsPropertyDefinition( "gradientType", QgsPropertyDefinition::DataTypeString, QObject::tr( "Gradient type" ), QObject::tr( "string " ) + QLatin1String( "[<b>linear</b>|<b>radial</b>|<b>conical</b>]" ), origin )},
{ QgsSymbolLayer::PropertyCoordinateMode, QgsPropertyDefinition( "gradientMode", QgsPropertyDefinition::DataTypeString, QObject::tr( "Gradient mode" ), QObject::tr( "string " ) + QLatin1String( "[<b>feature</b>|<b>viewport</b>]" ), origin )},
{ QgsSymbolLayer::PropertyGradientSpread, QgsPropertyDefinition( "gradientSpread", QgsPropertyDefinition::DataTypeString, QObject::tr( "Gradient spread" ), QObject::tr( "string " ) + QLatin1String( "[<b>pad</b>|<b>repeat</b>|<b>reflect</b>]" ), origin )},
{ QgsSymbolLayer::PropertyGradientReference1X, QgsPropertyDefinition( "gradientRef1X", QObject::tr( "Reference point 1 (X)" ), QgsPropertyDefinition::Double0To1, origin )},
{ QgsSymbolLayer::PropertyGradientReference1Y, QgsPropertyDefinition( "gradientRef1Y", QObject::tr( "Reference point 1 (Y)" ), QgsPropertyDefinition::Double0To1, origin )},
{ QgsSymbolLayer::PropertyGradientReference2X, QgsPropertyDefinition( "gradientRef2X", QObject::tr( "Reference point 2 (X)" ), QgsPropertyDefinition::Double0To1, origin )},
{ QgsSymbolLayer::PropertyGradientReference2Y, QgsPropertyDefinition( "gradientRef2Y", QObject::tr( "Reference point 2 (Y)" ), QgsPropertyDefinition::Double0To1, origin )},
{ QgsSymbolLayer::PropertyGradientReference1IsCentroid, QgsPropertyDefinition( "gradientRef1Centroid", QObject::tr( "Reference point 1 follows feature centroid" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyGradientReference2IsCentroid, QgsPropertyDefinition( "gradientRef2Centroid", QObject::tr( "Reference point 2 follows feature centroid" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyBlurRadius, QgsPropertyDefinition( "blurRadius", QgsPropertyDefinition::DataTypeNumeric, QObject::tr( "Blur radius" ), QObject::tr( "Integer between 0 and 18" ), origin )},
{ QgsSymbolLayer::PropertyLineDistance, QgsPropertyDefinition( "lineDistance", QObject::tr( "Distance between lines" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyShapeburstUseWholeShape, QgsPropertyDefinition( "shapeburstWholeShape", QObject::tr( "Shade whole shape" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyShapeburstMaxDistance, QgsPropertyDefinition( "shapeburstMaxDist", QObject::tr( "Maximum distance for shapeburst fill" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyShapeburstIgnoreRings, QgsPropertyDefinition( "shapeburstIgnoreRings", QObject::tr( "Ignore rings in feature" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyFile, QgsPropertyDefinition( "file", QObject::tr( "Symbol file path" ), QgsPropertyDefinition::String, origin )},
{ QgsSymbolLayer::PropertyDistanceX, QgsPropertyDefinition( "distanceX", QObject::tr( "Horizontal distance between markers" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyDistanceY, QgsPropertyDefinition( "distanceY", QObject::tr( "Vertical distance between markers" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyDisplacementX, QgsPropertyDefinition( "displacementX", QObject::tr( "Horizontal displacement between rows" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyDisplacementY, QgsPropertyDefinition( "displacementY", QObject::tr( "Vertical displacement between columns" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyOffsetX, QgsPropertyDefinition( "offsetX", QObject::tr( "Horizontal offset" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyOffsetY, QgsPropertyDefinition( "offsetY", QObject::tr( "Vertical offset" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyOpacity, QgsPropertyDefinition( "alpha", QObject::tr( "Opacity" ), QgsPropertyDefinition::Opacity, origin )},
{ QgsSymbolLayer::PropertyCustomDash, QgsPropertyDefinition( "customDash", QgsPropertyDefinition::DataTypeString, QObject::tr( "Custom dash pattern" ), QObject::tr( "[<b><dash>;<space></b>] e.g. '8;2;1;2'" ), origin )},
{ QgsSymbolLayer::PropertyCapStyle, QgsPropertyDefinition( "capStyle", QObject::tr( "Line cap style" ), QgsPropertyDefinition::CapStyle, origin )},
{ QgsSymbolLayer::PropertyPlacement, QgsPropertyDefinition( "placement", QgsPropertyDefinition::DataTypeString, QObject::tr( "Marker placement" ), QObject::tr( "string " ) + "[<b>interval</b>|<b>innervertices</b>|<b>vertex</b>|<b>lastvertex</b>|<b>firstvertex</b>|<b>centerpoint</b>|<b>curvepoint</b>|<b>segmentcenter</b>]", origin )},
{ QgsSymbolLayer::PropertyInterval, QgsPropertyDefinition( "interval", QObject::tr( "Marker interval" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyOffsetAlongLine, QgsPropertyDefinition( "offsetAlongLine", QObject::tr( "Offset along line" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyAverageAngleLength, QgsPropertyDefinition( "averageAngleLength", QObject::tr( "Average line angles over" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyHorizontalAnchor, QgsPropertyDefinition( "hAnchor", QObject::tr( "Horizontal anchor point" ), QgsPropertyDefinition::HorizontalAnchor, origin )},
{ QgsSymbolLayer::PropertyVerticalAnchor, QgsPropertyDefinition( "vAnchor", QObject::tr( "Vertical anchor point" ), QgsPropertyDefinition::VerticalAnchor, origin )},
{ QgsSymbolLayer::PropertyLayerEnabled, QgsPropertyDefinition( "enabled", QObject::tr( "Layer enabled" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyArrowWidth, QgsPropertyDefinition( "arrowWidth", QObject::tr( "Arrow line width" ), QgsPropertyDefinition::StrokeWidth, origin )},
{ QgsSymbolLayer::PropertyArrowStartWidth, QgsPropertyDefinition( "arrowStartWidth", QObject::tr( "Arrow line start width" ), QgsPropertyDefinition::StrokeWidth, origin )},
{ QgsSymbolLayer::PropertyArrowHeadLength, QgsPropertyDefinition( "arrowHeadLength", QObject::tr( "Arrow head length" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyArrowHeadThickness, QgsPropertyDefinition( "arrowHeadThickness", QObject::tr( "Arrow head thickness" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyArrowHeadType, QgsPropertyDefinition( "arrowHeadType", QgsPropertyDefinition::DataTypeString, QObject::tr( "Arrow head type" ), QObject::tr( "string " ) + QLatin1String( "[<b>single</b>|<b>reversed</b>|<b>double</b>]" ), origin )},
{ QgsSymbolLayer::PropertyArrowType, QgsPropertyDefinition( "arrowType", QgsPropertyDefinition::DataTypeString, QObject::tr( "Arrow type" ), QObject::tr( "string " ) + QLatin1String( "[<b>plain</b>|<b>lefthalf</b>|<b>righthalf</b>]" ), origin )},
{ QgsSymbolLayer::PropertyPointCount, QgsPropertyDefinition( "pointCount", QObject::tr( "Point count" ), QgsPropertyDefinition::IntegerPositive, origin )},
{ QgsSymbolLayer::PropertyRandomSeed, QgsPropertyDefinition( "randomSeed", QgsPropertyDefinition::DataTypeNumeric, QObject::tr( "Random number seed" ), QObject::tr( "integer > 0, or 0 for completely random sequence" ), origin )},
{ QgsSymbolLayer::PropertyClipPoints, QgsPropertyDefinition( "clipPoints", QObject::tr( "Clip markers" ), QgsPropertyDefinition::Boolean, origin )},
{ QgsSymbolLayer::PropertyClipPoints, QgsPropertyDefinition( "densityArea", QObject::tr( "Density area" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyDashPatternOffset, QgsPropertyDefinition( "dashPatternOffset", QObject::tr( "Dash pattern offset" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyTrimStart, QgsPropertyDefinition( "trimStart", QObject::tr( "Start trim distance" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyTrimEnd, QgsPropertyDefinition( "trimEnd", QObject::tr( "End trim distance" ), QgsPropertyDefinition::DoublePositive, origin )},
{ QgsSymbolLayer::PropertyLineStartWidthValue, QgsPropertyDefinition( "lineStartWidthValue", QObject::tr( "Line start width value" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyLineEndWidthValue, QgsPropertyDefinition( "lineEndWidthValue", QObject::tr( "Line end width value" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyLineStartColorValue, QgsPropertyDefinition( "lineStartColorValue", QObject::tr( "Line start color value" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyLineEndColorValue, QgsPropertyDefinition( "lineEndColorValue", QObject::tr( "Line end color value" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyMarkerClipping, QgsPropertyDefinition( "markerClipping", QgsPropertyDefinition::DataTypeString, QObject::tr( "Marker clipping mode" ), QObject::tr( "string " ) + QLatin1String( "[<b>no</b>|<b>shape</b>|<b>centroid_within</b>|<b>completely_within</b>]" ), origin )},
{ QgsSymbolLayer::PropertyRandomOffsetX, QgsPropertyDefinition( "randomOffsetX", QObject::tr( "Horizontal random offset" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyRandomOffsetY, QgsPropertyDefinition( "randomOffsetY", QObject::tr( "Vertical random offset" ), QgsPropertyDefinition::Double, origin )},
{ QgsSymbolLayer::PropertyLineClipping, QgsPropertyDefinition( "lineClipping", QgsPropertyDefinition::DataTypeString, QObject::tr( "Line clipping mode" ), QObject::tr( "string " ) + QLatin1String( "[<b>no</b>|<b>during_render</b>|<b>before_render</b>]" ), origin )},
};
}
void QgsSymbolLayer::setDataDefinedProperty( QgsSymbolLayer::Property key, const QgsProperty &property )
{
dataDefinedProperties().setProperty( key, property );
}
void QgsSymbolLayer::startFeatureRender( const QgsFeature &feature, QgsRenderContext &context )
{
if ( QgsSymbol *lSubSymbol = subSymbol() )
lSubSymbol->startFeatureRender( feature, context );
}
void QgsSymbolLayer::stopFeatureRender( const QgsFeature &feature, QgsRenderContext &context )
{
if ( QgsSymbol *lSubSymbol = subSymbol() )
lSubSymbol->stopFeatureRender( feature, context );
}
QgsSymbol *QgsSymbolLayer::subSymbol()
{
return nullptr;
}
bool QgsSymbolLayer::setSubSymbol( QgsSymbol *symbol )
{
delete symbol;
return false;
}
bool QgsSymbolLayer::writeDxf( QgsDxfExport &e, double mmMapUnitScaleFactor, const QString &layerName, QgsSymbolRenderContext &context, QPointF shift ) const
{
Q_UNUSED( e )
Q_UNUSED( mmMapUnitScaleFactor )
Q_UNUSED( layerName )
Q_UNUSED( context )
Q_UNUSED( shift )
return false;
}
double QgsSymbolLayer::dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const
{
Q_UNUSED( e )
Q_UNUSED( context )
return 1.0;
}
double QgsSymbolLayer::dxfOffset( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const
{
Q_UNUSED( e )
Q_UNUSED( context )
return 0.0;
}
QColor QgsSymbolLayer::dxfColor( QgsSymbolRenderContext &context ) const
{
Q_UNUSED( context )
return color();
}
double QgsSymbolLayer::dxfAngle( QgsSymbolRenderContext &context ) const
{
Q_UNUSED( context )
return 0.0;
}
QVector<qreal> QgsSymbolLayer::dxfCustomDashPattern( QgsUnitTypes::RenderUnit &unit ) const
{
Q_UNUSED( unit )
return QVector<qreal>();
}
Qt::PenStyle QgsSymbolLayer::dxfPenStyle() const
{
return Qt::SolidLine;
}
QColor QgsSymbolLayer::dxfBrushColor( QgsSymbolRenderContext &context ) const
{
Q_UNUSED( context )
return color();
}
Qt::BrushStyle QgsSymbolLayer::dxfBrushStyle() const
{
return Qt::NoBrush;
}
QgsPaintEffect *QgsSymbolLayer::paintEffect() const
{
return mPaintEffect.get();
}
void QgsSymbolLayer::setPaintEffect( QgsPaintEffect *effect )
{
if ( effect == mPaintEffect.get() )
return;
mPaintEffect.reset( effect );
}
QgsSymbolLayer::QgsSymbolLayer( Qgis::SymbolType type, bool locked )
: mType( type )
, mLocked( locked )
{
}
Qgis::SymbolLayerFlags QgsSymbolLayer::flags() const
{
return Qgis::SymbolLayerFlags();
}
void QgsSymbolLayer::prepareExpressions( const QgsSymbolRenderContext &context )
{
mDataDefinedProperties.prepare( context.renderContext().expressionContext() );
if ( !context.fields().isEmpty() )
{
//QgsFields is implicitly shared, so it's cheap to make a copy
mFields = context.fields();
}
}
bool QgsSymbolLayer::hasDataDefinedProperties() const
{
return mDataDefinedProperties.hasActiveProperties();
}
const QgsPropertiesDefinition &QgsSymbolLayer::propertyDefinitions()
{
QgsSymbolLayer::initPropertyDefinitions();
return sPropertyDefinitions;
}
QgsSymbolLayer::~QgsSymbolLayer() = default;
bool QgsSymbolLayer::isCompatibleWithSymbol( QgsSymbol *symbol ) const
{
if ( symbol->type() == Qgis::SymbolType::Fill && mType == Qgis::SymbolType::Line )
return true;
return symbol->type() == mType;
}
bool QgsSymbolLayer::canCauseArtifactsBetweenAdjacentTiles() const
{
return false;
}
bool QgsSymbolLayer::usesMapUnits() const
{
return false;
}
void QgsSymbolLayer::setRenderingPass( int renderingPass )
{
mRenderingPass = renderingPass;
}
int QgsSymbolLayer::renderingPass() const
{
return mRenderingPass;
}
QSet<QString> QgsSymbolLayer::usedAttributes( const QgsRenderContext &context ) const
{
// calling referencedFields() with ignoreContext=true because in our expression context
// we do not have valid QgsFields yet - because of that the field names from expressions
// wouldn't get reported
QSet<QString> columns = mDataDefinedProperties.referencedFields( context.expressionContext(), true );
return columns;
}
QgsProperty propertyFromMap( const QVariantMap &map, const QString &baseName )
{
QString prefix;
if ( !baseName.isEmpty() )
{
prefix.append( QStringLiteral( "%1_dd_" ).arg( baseName ) );
}
if ( !map.contains( QStringLiteral( "%1expression" ).arg( prefix ) ) )
{
//requires at least the expression value
return QgsProperty();
}
bool active = ( map.value( QStringLiteral( "%1active" ).arg( prefix ), QStringLiteral( "1" ) ) != QLatin1String( "0" ) );
QString expression = map.value( QStringLiteral( "%1expression" ).arg( prefix ) ).toString();
bool useExpression = ( map.value( QStringLiteral( "%1useexpr" ).arg( prefix ), QStringLiteral( "1" ) ) != QLatin1String( "0" ) );
QString field = map.value( QStringLiteral( "%1field" ).arg( prefix ), QString() ).toString();
if ( useExpression )
return QgsProperty::fromExpression( expression, active );
else
return QgsProperty::fromField( field, active );
}
void QgsSymbolLayer::restoreOldDataDefinedProperties( const QVariantMap &stringMap )
{
// property string to type upgrade map
static const QMap< QString, QgsSymbolLayer::Property > OLD_PROPS
{
{ "color", QgsSymbolLayer::PropertyFillColor },
{ "arrow_width", QgsSymbolLayer::PropertyArrowWidth },
{ "arrow_start_width", QgsSymbolLayer::PropertyArrowStartWidth },
{ "head_length", QgsSymbolLayer::PropertyArrowHeadLength },
{ "head_thickness", QgsSymbolLayer::PropertyArrowHeadThickness },
{ "offset", QgsSymbolLayer::PropertyOffset },
{ "head_type", QgsSymbolLayer::PropertyArrowHeadType },
{ "arrow_type", QgsSymbolLayer::PropertyArrowType },
{ "width_field", QgsSymbolLayer::PropertyWidth },
{ "height_field", QgsSymbolLayer::PropertyHeight },
{ "rotation_field", QgsSymbolLayer::PropertyAngle },
{ "outline_width_field", QgsSymbolLayer::PropertyStrokeWidth },
{ "fill_color_field", QgsSymbolLayer::PropertyFillColor },
{ "outline_color_field", QgsSymbolLayer::PropertyStrokeColor },
{ "symbol_name_field", QgsSymbolLayer::PropertyName },
{ "outline_width", QgsSymbolLayer::PropertyStrokeWidth },
{ "outline_style", QgsSymbolLayer::PropertyStrokeStyle },
{ "join_style", QgsSymbolLayer::PropertyJoinStyle },
{ "fill_color", QgsSymbolLayer::PropertyFillColor },
{ "outline_color", QgsSymbolLayer::PropertyStrokeColor },
{ "width", QgsSymbolLayer::PropertyWidth },
{ "height", QgsSymbolLayer::PropertyHeight },
{ "symbol_name", QgsSymbolLayer::PropertyName },
{ "angle", QgsSymbolLayer::PropertyAngle },
{ "fill_style", QgsSymbolLayer::PropertyFillStyle },
{ "color_border", QgsSymbolLayer::PropertyStrokeColor },
{ "width_border", QgsSymbolLayer::PropertyStrokeWidth },
{ "border_color", QgsSymbolLayer::PropertyStrokeColor },
{ "border_style", QgsSymbolLayer::PropertyStrokeStyle },
{ "color2", QgsSymbolLayer::PropertySecondaryColor },
{ "gradient_type", QgsSymbolLayer::PropertyGradientType },
{ "coordinate_mode", QgsSymbolLayer::PropertyCoordinateMode },
{ "spread", QgsSymbolLayer::PropertyGradientSpread },
{ "reference1_x", QgsSymbolLayer::PropertyGradientReference1X },
{ "reference1_y", QgsSymbolLayer::PropertyGradientReference1Y },
{ "reference2_x", QgsSymbolLayer::PropertyGradientReference2X },
{ "reference2_y", QgsSymbolLayer::PropertyGradientReference2Y },
{ "reference1_iscentroid", QgsSymbolLayer::PropertyGradientReference1IsCentroid },
{ "reference2_iscentroid", QgsSymbolLayer::PropertyGradientReference2IsCentroid },
{ "blur_radius", QgsSymbolLayer::PropertyBlurRadius },
{ "use_whole_shape", QgsSymbolLayer::PropertyShapeburstUseWholeShape },
{ "max_distance", QgsSymbolLayer::PropertyShapeburstMaxDistance },
{ "ignore_rings", QgsSymbolLayer::PropertyShapeburstIgnoreRings },
{ "svgFillColor", QgsSymbolLayer::PropertyFillColor },
{ "svgOutlineColor", QgsSymbolLayer::PropertyStrokeColor },
{ "svgOutlineWidth", QgsSymbolLayer::PropertyStrokeWidth },
{ "svgFile", QgsSymbolLayer::PropertyFile },
{ "lineangle", QgsSymbolLayer::PropertyLineAngle },
{ "distance", QgsSymbolLayer::PropertyLineDistance },
{ "distance_x", QgsSymbolLayer::PropertyDistanceX },
{ "distance_y", QgsSymbolLayer::PropertyDistanceY },
{ "displacement_x", QgsSymbolLayer::PropertyDisplacementX },
{ "displacement_y", QgsSymbolLayer::PropertyDisplacementY },
{ "file", QgsSymbolLayer::PropertyFile },
{ "alpha", QgsSymbolLayer::PropertyOpacity },
{ "customdash", QgsSymbolLayer::PropertyCustomDash },
{ "line_style", QgsSymbolLayer::PropertyStrokeStyle },
{ "joinstyle", QgsSymbolLayer::PropertyJoinStyle },
{ "capstyle", QgsSymbolLayer::PropertyCapStyle },
{ "placement", QgsSymbolLayer::PropertyPlacement },
{ "interval", QgsSymbolLayer::PropertyInterval },
{ "offset_along_line", QgsSymbolLayer::PropertyOffsetAlongLine },
{ "name", QgsSymbolLayer::PropertyName },
{ "size", QgsSymbolLayer::PropertySize },
{ "fill", QgsSymbolLayer::PropertyFillColor },
{ "outline", QgsSymbolLayer::PropertyStrokeColor },
{ "char", QgsSymbolLayer::PropertyCharacter },
{ "enabled", QgsSymbolLayer::PropertyLayerEnabled },
{ "rotation", QgsSymbolLayer::PropertyAngle },
{ "horizontal_anchor_point", QgsSymbolLayer::PropertyHorizontalAnchor },
{ "vertical_anchor_point", QgsSymbolLayer::PropertyVerticalAnchor },
};
QVariantMap::const_iterator propIt = stringMap.constBegin();
for ( ; propIt != stringMap.constEnd(); ++propIt )
{
std::unique_ptr<QgsProperty> prop;
QString propertyName;
if ( propIt.key().endsWith( QLatin1String( "_dd_expression" ) ) )
{
//found a data defined property
//get data defined property name by stripping "_dd_expression" from property key
propertyName = propIt.key().left( propIt.key().length() - 14 );
prop = std::make_unique<QgsProperty>( propertyFromMap( stringMap, propertyName ) );
}
else if ( propIt.key().endsWith( QLatin1String( "_expression" ) ) )
{
//old style data defined property, upgrade
//get data defined property name by stripping "_expression" from property key
propertyName = propIt.key().left( propIt.key().length() - 11 );
prop = std::make_unique<QgsProperty>( QgsProperty::fromExpression( propIt.value().toString() ) );
}
if ( !prop || !OLD_PROPS.contains( propertyName ) )
continue;
QgsSymbolLayer::Property key = static_cast< QgsSymbolLayer::Property >( OLD_PROPS.value( propertyName ) );
if ( type() == Qgis::SymbolType::Line )
{
//these keys had different meaning for line symbol layers
if ( propertyName == QLatin1String( "width" ) )
key = QgsSymbolLayer::PropertyStrokeWidth;
else if ( propertyName == QLatin1String( "color" ) )
key = QgsSymbolLayer::PropertyStrokeColor;
}
setDataDefinedProperty( key, QgsProperty( *prop.get() ) );
}
}
void QgsSymbolLayer::copyDataDefinedProperties( QgsSymbolLayer *destLayer ) const
{
if ( !destLayer )
return;
destLayer->setDataDefinedProperties( mDataDefinedProperties );
}
void QgsSymbolLayer::copyPaintEffect( QgsSymbolLayer *destLayer ) const
{
if ( !destLayer || !mPaintEffect )
return;
if ( !QgsPaintEffectRegistry::isDefaultStack( mPaintEffect.get() ) )
destLayer->setPaintEffect( mPaintEffect->clone() );
else
destLayer->setPaintEffect( nullptr );
}
QgsMarkerSymbolLayer::QgsMarkerSymbolLayer( bool locked )
: QgsSymbolLayer( Qgis::SymbolType::Marker, locked )
{
}
QgsLineSymbolLayer::QgsLineSymbolLayer( bool locked )
: QgsSymbolLayer( Qgis::SymbolType::Line, locked )
{
}
QgsLineSymbolLayer::RenderRingFilter QgsLineSymbolLayer::ringFilter() const
{
return mRingFilter;
}
void QgsLineSymbolLayer::setRingFilter( const RenderRingFilter filter )
{
mRingFilter = filter;
}
QgsFillSymbolLayer::QgsFillSymbolLayer( bool locked )
: QgsSymbolLayer( Qgis::SymbolType::Fill, locked )
{
}
void QgsMarkerSymbolLayer::startRender( QgsSymbolRenderContext &context )
{
Q_UNUSED( context )
}
void QgsMarkerSymbolLayer::stopRender( QgsSymbolRenderContext &context )
{
Q_UNUSED( context )
}
void QgsMarkerSymbolLayer::drawPreviewIcon( QgsSymbolRenderContext &context, QSize size )
{
startRender( context );
QgsPaintEffect *effect = paintEffect();
QPolygonF points = context.patchShape() ? context.patchShape()->toQPolygonF( Qgis::SymbolType::Marker, size ).value( 0 ).value( 0 )
: QgsStyle::defaultStyle()->defaultPatchAsQPolygonF( Qgis::SymbolType::Marker, size ).value( 0 ).value( 0 );
std::unique_ptr< QgsEffectPainter > effectPainter;
if ( effect && effect->enabled() )
effectPainter = std::make_unique< QgsEffectPainter >( context.renderContext(), effect );
for ( QPointF point : std::as_const( points ) )
renderPoint( point, context );
effectPainter.reset();
stopRender( context );
}
void QgsMarkerSymbolLayer::markerOffset( QgsSymbolRenderContext &context, double &offsetX, double &offsetY ) const
{
markerOffset( context, mSize, mSize, mSizeUnit, mSizeUnit, offsetX, offsetY, mSizeMapUnitScale, mSizeMapUnitScale );
}
void QgsMarkerSymbolLayer::markerOffset( QgsSymbolRenderContext &context, double width, double height, double &offsetX, double &offsetY ) const
{
markerOffset( context, width, height, mSizeUnit, mSizeUnit, offsetX, offsetY, mSizeMapUnitScale, mSizeMapUnitScale );
}
void QgsMarkerSymbolLayer::markerOffset( QgsSymbolRenderContext &context, double width, double height,
QgsUnitTypes::RenderUnit widthUnit, QgsUnitTypes::RenderUnit heightUnit,
double &offsetX, double &offsetY, const QgsMapUnitScale &widthMapUnitScale, const QgsMapUnitScale &heightMapUnitScale ) const
{
offsetX = mOffset.x();
offsetY = mOffset.y();
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyOffset ) )
{
context.setOriginalValueVariable( QgsSymbolLayerUtils::encodePoint( mOffset ) );
QVariant exprVal = mDataDefinedProperties.value( QgsSymbolLayer::PropertyOffset, context.renderContext().expressionContext() );
bool ok = false;
const QPointF offset = QgsSymbolLayerUtils::toPoint( exprVal, &ok );
if ( ok )
{
offsetX = offset.x();
offsetY = offset.y();
}
}
offsetX = context.renderContext().convertToPainterUnits( offsetX, mOffsetUnit, mOffsetMapUnitScale );
offsetY = context.renderContext().convertToPainterUnits( offsetY, mOffsetUnit, mOffsetMapUnitScale );
HorizontalAnchorPoint horizontalAnchorPoint = mHorizontalAnchorPoint;
VerticalAnchorPoint verticalAnchorPoint = mVerticalAnchorPoint;
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyHorizontalAnchor ) )
{
QVariant exprVal = mDataDefinedProperties.value( QgsSymbolLayer::PropertyHorizontalAnchor, context.renderContext().expressionContext() );
if ( !exprVal.isNull() )
{
horizontalAnchorPoint = decodeHorizontalAnchorPoint( exprVal.toString() );
}
}
if ( mDataDefinedProperties.isActive( QgsSymbolLayer::PropertyVerticalAnchor ) )
{
QVariant exprVal = mDataDefinedProperties.value( QgsSymbolLayer::PropertyVerticalAnchor, context.renderContext().expressionContext() );
if ( !exprVal.isNull() )
{
verticalAnchorPoint = decodeVerticalAnchorPoint( exprVal.toString() );
}
}
//correct horizontal position according to anchor point
if ( horizontalAnchorPoint == HCenter && verticalAnchorPoint == VCenter )
{
return;
}
double anchorPointCorrectionX = context.renderContext().convertToPainterUnits( width, widthUnit, widthMapUnitScale ) / 2.0;
if ( widthUnit == QgsUnitTypes::RenderMetersInMapUnits && context.renderContext().flags() & Qgis::RenderContextFlag::RenderSymbolPreview )
{
// rendering for symbol previews -- an size in meters in map units can't be calculated, so treat the size as millimeters
// and clamp it to a reasonable range. It's the best we can do in this situation!
anchorPointCorrectionX = std::min( std::max( context.renderContext().convertToPainterUnits( width, QgsUnitTypes::RenderMillimeters ), 3.0 ), 100.0 ) / 2.0;
}
double anchorPointCorrectionY = context.renderContext().convertToPainterUnits( height, heightUnit, heightMapUnitScale ) / 2.0;
if ( heightUnit == QgsUnitTypes::RenderMetersInMapUnits && context.renderContext().flags() & Qgis::RenderContextFlag::RenderSymbolPreview )
{
// rendering for symbol previews -- an size in meters in map units can't be calculated, so treat the size as millimeters
// and clamp it to a reasonable range. It's the best we can do in this situation!
anchorPointCorrectionY = std::min( std::max( context.renderContext().convertToPainterUnits( height, QgsUnitTypes::RenderMillimeters ), 3.0 ), 100.0 ) / 2.0;
}
if ( horizontalAnchorPoint == Left )
{
offsetX += anchorPointCorrectionX;
}
else if ( horizontalAnchorPoint == Right )
{
offsetX -= anchorPointCorrectionX;
}
//correct vertical position according to anchor point
if ( verticalAnchorPoint == Top )
{
offsetY += anchorPointCorrectionY;
}
else if ( verticalAnchorPoint == Bottom )
{
offsetY -= anchorPointCorrectionY;
}
}
QPointF QgsMarkerSymbolLayer::_rotatedOffset( QPointF offset, double angle )
{
angle = DEG2RAD( angle );
double c = std::cos( angle ), s = std::sin( angle );
return QPointF( offset.x() * c - offset.y() * s, offset.x() * s + offset.y() * c );
}
QgsMarkerSymbolLayer::HorizontalAnchorPoint QgsMarkerSymbolLayer::decodeHorizontalAnchorPoint( const QString &str )
{
if ( str.compare( QLatin1String( "left" ), Qt::CaseInsensitive ) == 0 )
{
return QgsMarkerSymbolLayer::Left;
}
else if ( str.compare( QLatin1String( "right" ), Qt::CaseInsensitive ) == 0 )
{
return QgsMarkerSymbolLayer::Right;
}
else
{
return QgsMarkerSymbolLayer::HCenter;
}
}
QgsMarkerSymbolLayer::VerticalAnchorPoint QgsMarkerSymbolLayer::decodeVerticalAnchorPoint( const QString &str )
{
if ( str.compare( QLatin1String( "top" ), Qt::CaseInsensitive ) == 0 )
{
return QgsMarkerSymbolLayer::Top;
}
else if ( str.compare( QLatin1String( "bottom" ), Qt::CaseInsensitive ) == 0 )
{
return QgsMarkerSymbolLayer::Bottom;
}
else
{
return QgsMarkerSymbolLayer::VCenter;
}
}
void QgsMarkerSymbolLayer::setOutputUnit( QgsUnitTypes::RenderUnit unit )
{
mSizeUnit = unit;
mOffsetUnit = unit;
}
QgsUnitTypes::RenderUnit QgsMarkerSymbolLayer::outputUnit() const
{
if ( mOffsetUnit != mSizeUnit )
{
return QgsUnitTypes::RenderUnknownUnit;
}
return mOffsetUnit;
}
void QgsMarkerSymbolLayer::setMapUnitScale( const QgsMapUnitScale &scale )
{
mSizeMapUnitScale = scale;
mOffsetMapUnitScale = scale;
}
QgsMapUnitScale QgsMarkerSymbolLayer::mapUnitScale() const
{
if ( mSizeMapUnitScale == mOffsetMapUnitScale )
{
return mSizeMapUnitScale;
}
return QgsMapUnitScale();
}
void QgsLineSymbolLayer::setOutputUnit( QgsUnitTypes::RenderUnit unit )
{
mWidthUnit = unit;
}
QgsUnitTypes::RenderUnit QgsLineSymbolLayer::outputUnit() const
{
return mWidthUnit;
}
void QgsLineSymbolLayer::setMapUnitScale( const QgsMapUnitScale &scale )
{
mWidthMapUnitScale = scale;
}
QgsMapUnitScale QgsLineSymbolLayer::mapUnitScale() const
{
return mWidthMapUnitScale;
}
void QgsLineSymbolLayer::drawPreviewIcon( QgsSymbolRenderContext &context, QSize size )
{
const QList< QList< QPolygonF > > points = context.patchShape() ? context.patchShape()->toQPolygonF( Qgis::SymbolType::Line, size )
: QgsStyle::defaultStyle()->defaultPatchAsQPolygonF( Qgis::SymbolType::Line, size );
startRender( context );
QgsPaintEffect *effect = paintEffect();
std::unique_ptr< QgsEffectPainter > effectPainter;
if ( effect && effect->enabled() )
effectPainter = std::make_unique< QgsEffectPainter >( context.renderContext(), effect );
for ( const QList< QPolygonF > &line : points )
renderPolyline( line.value( 0 ), context );
effectPainter.reset();
stopRender( context );
}
void QgsLineSymbolLayer::renderPolygonStroke( const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context )
{
QgsExpressionContextScope *scope = nullptr;
std::unique_ptr< QgsExpressionContextScopePopper > scopePopper;
if ( hasDataDefinedProperties() )
{
scope = new QgsExpressionContextScope();
scopePopper = std::make_unique< QgsExpressionContextScopePopper >( context.renderContext().expressionContext(), scope );
}
switch ( mRingFilter )
{
case AllRings:
case ExteriorRingOnly:
{
if ( scope )
scope->addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_GEOMETRY_RING_NUM, 0, true ) );
renderPolyline( points, context );
break;
}
case InteriorRingsOnly:
break;
}
if ( rings )
{
switch ( mRingFilter )
{
case AllRings:
case InteriorRingsOnly:
{
int ringIndex = 1;
for ( const QPolygonF &ring : std::as_const( *rings ) )
{
if ( scope )
scope->addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_GEOMETRY_RING_NUM, ringIndex, true ) );
renderPolyline( ring, context );
ringIndex++;
}
}
break;
case ExteriorRingOnly:
break;
}
}
}
double QgsLineSymbolLayer::width( const QgsRenderContext &context ) const
{
return context.convertToPainterUnits( mWidth, mWidthUnit, mWidthMapUnitScale );
}
double QgsLineSymbolLayer::dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const
{
Q_UNUSED( context )
return width() * e.mapUnitScaleFactor( e.symbologyScale(), widthUnit(), e.mapUnits(), context.renderContext().mapToPixel().mapUnitsPerPixel() );
}
void QgsFillSymbolLayer::drawPreviewIcon( QgsSymbolRenderContext &context, QSize size )
{
const QList< QList< QPolygonF > > polys = context.patchShape() ? context.patchShape()->toQPolygonF( Qgis::SymbolType::Fill, size )
: QgsStyle::defaultStyle()->defaultPatchAsQPolygonF( Qgis::SymbolType::Fill, size );
startRender( context );
QgsPaintEffect *effect = paintEffect();
std::unique_ptr< QgsEffectPainter > effectPainter;
if ( effect && effect->enabled() )
effectPainter = std::make_unique< QgsEffectPainter >( context.renderContext(), effect );
for ( const QList< QPolygonF > &poly : polys )
{
QVector< QPolygonF > rings;
for ( int i = 1; i < poly.size(); ++i )
rings << poly.at( i );
renderPolygon( poly.value( 0 ), &rings, context );
}
effectPainter.reset();
stopRender( context );
}
void QgsFillSymbolLayer::_renderPolygon( QPainter *p, const QPolygonF &points, const QVector<QPolygonF> *rings, QgsSymbolRenderContext &context )
{
if ( !p )
{
return;
}
// Disable 'Antialiasing' if the geometry was generalized in the current RenderContext (We known that it must have least #5 points).
if ( points.size() <= 5 &&
( context.renderContext().vectorSimplifyMethod().simplifyHints() & QgsVectorSimplifyMethod::AntialiasingSimplification ) &&
QgsAbstractGeometrySimplifier::isGeneralizableByDeviceBoundingBox( points, context.renderContext().vectorSimplifyMethod().threshold() ) &&
( p->renderHints() & QPainter::Antialiasing ) )
{
p->setRenderHint( QPainter::Antialiasing, false );
p->drawRect( points.boundingRect() );
p->setRenderHint( QPainter::Antialiasing, true );
return;
}
// polygons outlines are sometimes rendered wrongly with drawPolygon, when
// clipped (see #13343), so use drawPath instead.
if ( !rings && p->pen().style() == Qt::NoPen )
{
// simple polygon without holes
p->drawPolygon( points );
}
else
{
// polygon with holes must be drawn using painter path
QPainterPath path;
path.addPolygon( points );
if ( rings )
{
for ( auto it = rings->constBegin(); it != rings->constEnd(); ++it )
{
QPolygonF ring = *it;
path.addPolygon( ring );
}
}
p->drawPath( path );
}
}
void QgsMarkerSymbolLayer::toSld( QDomDocument &doc, QDomElement &element, const QVariantMap &props ) const
{
QDomElement symbolizerElem = doc.createElement( QStringLiteral( "se:PointSymbolizer" ) );
if ( !props.value( QStringLiteral( "uom" ), QString() ).toString().isEmpty() )
symbolizerElem.setAttribute( QStringLiteral( "uom" ), props.value( QStringLiteral( "uom" ), QString() ).toString() );
element.appendChild( symbolizerElem );
// <Geometry>
QgsSymbolLayerUtils::createGeometryElement( doc, symbolizerElem, props.value( QStringLiteral( "geom" ), QString() ).toString() );
writeSldMarker( doc, symbolizerElem, props );
}
QList<QgsSymbolLayerReference> QgsSymbolLayer::masks() const
{
return {};
}