Fix QgsSymbol::drawPreviewIcon

Transform the "Opacity" value calculated by Data Defined Override expression from [0-100] range to [0-1] range.
agiudiceandrea · Mar 20, 2024 · 96f6649 · 96f6649
1 parent 522747c
commit 96f6649
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/core/symbology/qgssymbol.cpp b/src/core/symbology/qgssymbol.cpp
@@ -942,7 +942,7 @@ void QgsSymbol::drawPreviewIcon( QPainter *painter, QSize size, QgsRenderContext
   const bool prevForceVector = context->forceVectorOutput();
   context->setForceVectorOutput( true );
 
-  const double opacity = expressionContext ? dataDefinedProperties().valueAsDouble( QgsSymbol::PropertyOpacity, *expressionContext, mOpacity ) : mOpacity;
+  const double opacity = expressionContext ? dataDefinedProperties().valueAsDouble( QgsSymbol::PropertyOpacity, *expressionContext, mOpacity * 100 ) * 0.01 : mOpacity;
 
   QgsSymbolRenderContext symbolContext( *context, Qgis::RenderUnit::Unknown, opacity, false, mRenderHints, nullptr );
   symbolContext.setSelected( selected );