Fix evaluation of data defined properties for subsymbols of subsymbols

Fixes #18384
qgis · Jan 22, 2019 · 9cf2ff3 · 9cf2ff3
1 parent 855b3b4
commit 9cf2ff3
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Showing 26 changed files with 173 additions and 12 deletions.
diff --git a/python/core/auto_generated/symbology/qgsarrowsymbollayer.sip.in b/python/core/auto_generated/symbology/qgsarrowsymbollayer.sip.in
@@ -43,6 +43,8 @@ Create a new QgsArrowSymbolLayer
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
     double arrowWidth() const;
 %Docstring

diff --git a/python/core/auto_generated/symbology/qgsfillsymbollayer.sip.in b/python/core/auto_generated/symbology/qgsfillsymbollayer.sip.in
@@ -734,6 +734,8 @@ Returns the stroke width map unit scale.
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
   protected:
 
@@ -1563,6 +1565,8 @@ Returns the map unit scale for the pattern's line offset.
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
   protected:
 
@@ -1727,6 +1731,8 @@ Returns the units for the vertical displacement between rows in the pattern.
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
     virtual void setColor( const QColor &c );
 
     virtual QColor color() const;
@@ -1798,6 +1804,8 @@ class QgsCentroidFillSymbolLayer : QgsFillSymbolLayer
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
     void setPointOnSurface( bool pointOnSurface );
     bool pointOnSurface() const;

diff --git a/python/core/auto_generated/symbology/qgsgeometrygeneratorsymbollayer.sip.in b/python/core/auto_generated/symbology/qgsgeometrygeneratorsymbollayer.sip.in
@@ -70,6 +70,8 @@ Gets the expression to generate this geometry.
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
     virtual bool isCompatibleWithSymbol( QgsSymbol *symbol ) const;
 

diff --git a/python/core/auto_generated/symbology/qgslinesymbollayer.sip.in b/python/core/auto_generated/symbology/qgslinesymbollayer.sip.in
@@ -378,6 +378,8 @@ Returns the units for the interval between markers.
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
     virtual void setDataDefinedProperty( QgsSymbolLayer::Property key, const QgsProperty &property );
 

diff --git a/python/core/auto_generated/symbology/qgsmarkersymbollayer.sip.in b/python/core/auto_generated/symbology/qgsmarkersymbollayer.sip.in
@@ -505,6 +505,8 @@ Creates a new QgsFilledMarkerSymbolLayer.
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
     virtual void setColor( const QColor &c );
 
     virtual QColor color() const;

diff --git a/python/core/auto_generated/symbology/qgssymbollayer.sip.in b/python/core/auto_generated/symbology/qgssymbollayer.sip.in
@@ -403,6 +403,13 @@ Sets the symbol layer's property collection, used for data defined overrides.
 .. seealso:: :py:func:`properties`
 
 .. versionadded:: 3.0
+%End
+
+    virtual bool hasDataDefinedProperties() const;
+%Docstring
+Returns true if the symbol layer (or any of its sub-symbols) contains data defined properties.
+
+.. versionadded:: 3.4.5
 %End
 
   protected:

diff --git a/python/core/auto_generated/symbology/qgsvectorfieldsymbollayer.sip.in b/python/core/auto_generated/symbology/qgsvectorfieldsymbollayer.sip.in
@@ -74,6 +74,8 @@ A symbol layer class for displaying displacement arrows based on point layer att
 
     virtual QSet<QString> usedAttributes( const QgsRenderContext &context ) const;
 
+    virtual bool hasDataDefinedProperties() const;
+
 
     void setXAttribute( const QString &attribute );
     QString xAttribute() const;

diff --git a/src/core/dxf/qgsdxfexport.cpp b/src/core/dxf/qgsdxfexport.cpp
@@ -4253,7 +4253,7 @@ bool QgsDxfExport::hasDataDefinedProperties( const QgsSymbolLayer *sl, const Qgs
     return true;
   }
 
-  return sl->dataDefinedProperties().hasActiveProperties();
+  return sl->hasDataDefinedProperties();
 }
 
 double QgsDxfExport::dashSize() const

diff --git a/src/core/symbology/qgsarrowsymbollayer.cpp b/src/core/symbology/qgsarrowsymbollayer.cpp
@@ -165,6 +165,14 @@ QSet<QString> QgsArrowSymbolLayer::usedAttributes( const QgsRenderContext &conte
   return attributes;
 }
 
+bool QgsArrowSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mSymbol && mSymbol->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
 
 void QgsArrowSymbolLayer::startRender( QgsSymbolRenderContext &context )
 {

diff --git a/src/core/symbology/qgsarrowsymbollayer.h b/src/core/symbology/qgsarrowsymbollayer.h
@@ -47,6 +47,7 @@ class CORE_EXPORT QgsArrowSymbolLayer : public QgsLineSymbolLayer
     QgsSymbol *subSymbol() override { return mSymbol.get(); }
     bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
     //! Gets current arrow width
     double arrowWidth() const { return mArrowWidth; }

diff --git a/src/core/symbology/qgsfillsymbollayer.cpp b/src/core/symbology/qgsfillsymbollayer.cpp
@@ -1707,6 +1707,15 @@ QSet<QString> QgsImageFillSymbolLayer::usedAttributes( const QgsRenderContext &c
   return attr;
 }
 
+bool QgsImageFillSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mStroke && mStroke->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 
 //QgsSVGFillSymbolLayer
 
@@ -2326,6 +2335,15 @@ QSet<QString> QgsLinePatternFillSymbolLayer::usedAttributes( const QgsRenderCont
   return attr;
 }
 
+bool QgsLinePatternFillSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mFillLineSymbol && mFillLineSymbol->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 double QgsLinePatternFillSymbolLayer::estimateMaxBleed( const QgsRenderContext & ) const
 {
   return 0;
@@ -3337,6 +3355,15 @@ QSet<QString> QgsPointPatternFillSymbolLayer::usedAttributes( const QgsRenderCon
   return attributes;
 }
 
+bool QgsPointPatternFillSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mMarkerSymbol && mMarkerSymbol->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 void QgsPointPatternFillSymbolLayer::setColor( const QColor &c )
 {
   mColor = c;
@@ -3516,6 +3543,15 @@ QSet<QString> QgsCentroidFillSymbolLayer::usedAttributes( const QgsRenderContext
   return attributes;
 }
 
+bool QgsCentroidFillSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mMarker && mMarker->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 void QgsCentroidFillSymbolLayer::setOutputUnit( QgsUnitTypes::RenderUnit unit )
 {
   if ( mMarker )

diff --git a/src/core/symbology/qgsfillsymbollayer.h b/src/core/symbology/qgsfillsymbollayer.h
@@ -677,6 +677,7 @@ class CORE_EXPORT QgsImageFillSymbolLayer: public QgsFillSymbolLayer
     QColor dxfColor( QgsSymbolRenderContext &context ) const override;
     Qt::PenStyle dxfPenStyle() const override;
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
   protected:
     QBrush mBrush;
@@ -1406,6 +1407,7 @@ class CORE_EXPORT QgsLinePatternFillSymbolLayer: public QgsImageFillSymbolLayer
     bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
     QgsSymbol *subSymbol() override;
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
   protected:
 
@@ -1560,6 +1562,7 @@ class CORE_EXPORT QgsPointPatternFillSymbolLayer: public QgsImageFillSymbolLayer
     QgsMapUnitScale mapUnitScale() const override;
 
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
     void setColor( const QColor &c ) override;
     QColor color() const override;
 
@@ -1632,6 +1635,7 @@ class CORE_EXPORT QgsCentroidFillSymbolLayer : public QgsFillSymbolLayer
     QgsMapUnitScale mapUnitScale() const override;
 
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
     void setPointOnSurface( bool pointOnSurface ) { mPointOnSurface = pointOnSurface; }
     bool pointOnSurface() const { return mPointOnSurface; }

diff --git a/src/core/symbology/qgsgeometrygeneratorsymbollayer.cpp b/src/core/symbology/qgsgeometrygeneratorsymbollayer.cpp
@@ -182,6 +182,14 @@ QSet<QString> QgsGeometryGeneratorSymbolLayer::usedAttributes( const QgsRenderCo
          + mExpression->referencedColumns();
 }
 
+bool QgsGeometryGeneratorSymbolLayer::hasDataDefinedProperties() const
+{
+  // we treat geometry generator layers like they have data defined properties,
+  // since the WHOLE layer is based on expressions and requires the full expression
+  // context
+  return true;
+}
+
 bool QgsGeometryGeneratorSymbolLayer::isCompatibleWithSymbol( QgsSymbol *symbol ) const
 {
   Q_UNUSED( symbol )

diff --git a/src/core/symbology/qgsgeometrygeneratorsymbollayer.h b/src/core/symbology/qgsgeometrygeneratorsymbollayer.h
@@ -73,6 +73,7 @@ class CORE_EXPORT QgsGeometryGeneratorSymbolLayer : public QgsSymbolLayer
     bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
 
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
     /**
      * Will always return true.

diff --git a/src/core/symbology/qgslinesymbollayer.cpp b/src/core/symbology/qgslinesymbollayer.cpp
@@ -1664,6 +1664,15 @@ QSet<QString> QgsMarkerLineSymbolLayer::usedAttributes( const QgsRenderContext &
   return attr;
 }
 
+bool QgsMarkerLineSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mMarker && mMarker->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 double QgsMarkerLineSymbolLayer::estimateMaxBleed( const QgsRenderContext &context ) const
 {
   return context.convertToPainterUnits( ( mMarker->size() / 2.0 ), mMarker->sizeUnit(), mMarker->sizeMapUnitScale() ) +

diff --git a/src/core/symbology/qgslinesymbollayer.h b/src/core/symbology/qgslinesymbollayer.h
@@ -356,6 +356,7 @@ class CORE_EXPORT QgsMarkerLineSymbolLayer : public QgsLineSymbolLayer
     QgsMapUnitScale mapUnitScale() const override;
 
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
     void setDataDefinedProperty( QgsSymbolLayer::Property key, const QgsProperty &property ) override;
 

diff --git a/src/core/symbology/qgsmarkersymbollayer.cpp b/src/core/symbology/qgsmarkersymbollayer.cpp
@@ -1645,6 +1645,15 @@ QSet<QString> QgsFilledMarkerSymbolLayer::usedAttributes( const QgsRenderContext
   return attr;
 }
 
+bool QgsFilledMarkerSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mFill && mFill->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 void QgsFilledMarkerSymbolLayer::setColor( const QColor &c )
 {
   mColor = c;

diff --git a/src/core/symbology/qgsmarkersymbollayer.h b/src/core/symbology/qgsmarkersymbollayer.h
@@ -456,6 +456,7 @@ class CORE_EXPORT QgsFilledMarkerSymbolLayer : public QgsSimpleMarkerSymbolLayer
     bool setSubSymbol( QgsSymbol *symbol SIP_TRANSFER ) override;
     double estimateMaxBleed( const QgsRenderContext &context ) const override;
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
     void setColor( const QColor &c ) override;
     QColor color() const override;
 

diff --git a/src/core/symbology/qgssymbol.cpp b/src/core/symbology/qgssymbol.cpp
@@ -677,12 +677,7 @@ bool QgsSymbol::hasDataDefinedProperties() const
 {
   Q_FOREACH ( QgsSymbolLayer *layer, mLayers )
   {
-    if ( layer->dataDefinedProperties().hasActiveProperties() )
-      return true;
-    // we treat geometry generator layers like they have data defined properties,
-    // since the WHOLE layer is based on expressions and requires the full expression
-    // context
-    if ( layer->layerType() == QLatin1String( "GeometryGenerator" ) )
+    if ( layer->hasDataDefinedProperties() )
       return true;
   }
   return false;

diff --git a/src/core/symbology/qgssymbollayer.cpp b/src/core/symbology/qgssymbollayer.cpp
@@ -193,6 +193,11 @@ void QgsSymbolLayer::prepareExpressions( const QgsSymbolRenderContext &context )
   }
 }
 
+bool QgsSymbolLayer::hasDataDefinedProperties() const
+{
+  return mDataDefinedProperties.hasActiveProperties();
+}
+
 const QgsPropertiesDefinition &QgsSymbolLayer::propertyDefinitions()
 {
   QgsSymbolLayer::initPropertyDefinitions();

diff --git a/src/core/symbology/qgssymbollayer.h b/src/core/symbology/qgssymbollayer.h
@@ -398,6 +398,13 @@ class CORE_EXPORT QgsSymbolLayer
      */
     void setDataDefinedProperties( const QgsPropertyCollection &collection ) { mDataDefinedProperties = collection; }
 
+    /**
+     * Returns true if the symbol layer (or any of its sub-symbols) contains data defined properties.
+     *
+     * \since QGIS 3.4.5
+     */
+    virtual bool hasDataDefinedProperties() const;
+
   protected:
 
     QgsSymbolLayer( QgsSymbol::SymbolType type, bool locked = false );

diff --git a/src/core/symbology/qgsvectorfieldsymbollayer.cpp b/src/core/symbology/qgsvectorfieldsymbollayer.cpp
@@ -284,6 +284,15 @@ QSet<QString> QgsVectorFieldSymbolLayer::usedAttributes( const QgsRenderContext
   return attributes;
 }
 
+bool QgsVectorFieldSymbolLayer::hasDataDefinedProperties() const
+{
+  if ( QgsSymbolLayer::hasDataDefinedProperties() )
+    return true;
+  if ( mLineSymbol && mLineSymbol->hasDataDefinedProperties() )
+    return true;
+  return false;
+}
+
 void QgsVectorFieldSymbolLayer::convertPolarToCartesian( double length, double angle, double &x, double &y ) const
 {
   //convert angle to degree and to north orientation

diff --git a/src/core/symbology/qgsvectorfieldsymbollayer.h b/src/core/symbology/qgsvectorfieldsymbollayer.h
@@ -72,6 +72,7 @@ class CORE_EXPORT QgsVectorFieldSymbolLayer: public QgsMarkerSymbolLayer
     void drawPreviewIcon( QgsSymbolRenderContext &context, QSize size ) override;
 
     QSet<QString> usedAttributes( const QgsRenderContext &context ) const override;
+    bool hasDataDefinedProperties() const override;
 
     //setters and getters
     void setXAttribute( const QString &attribute ) { mXAttribute = attribute; }