Set better default drop shadow parameters

Author: dakcarto

src/core/qgspallabeling.cpp

@@ -281,13 +281,13 @@ QgsPalLayerSettings::QgsPalLayerSettings()
   shadowDraw = false;
   shadowUnder = ShadowLowest;
   shadowOffsetAngle = 135;
-  shadowOffsetDist = 0.0;
+  shadowOffsetDist = 1.0;
   shadowOffsetUnits = MM;
   shadowOffsetGlobal = true;
-  shadowRadius = 0.0;
+  shadowRadius = 1.5;
   shadowRadiusUnits = MM;
   shadowRadiusAlphaOnly = false;
-  shadowTransparency = 0;
+  shadowTransparency = 30;
   shadowScale = 100;
   shadowColor = Qt::black;
   shadowBlendMode = QPainter::CompositionMode_Multiply;
@@ -689,13 +689,13 @@ void QgsPalLayerSettings::readFromLayer( QgsVectorLayer* layer )
   shadowDraw = layer->customProperty( "labeling/shadowDraw", QVariant( false ) ).toBool();
   shadowUnder = ( ShadowType )layer->customProperty( "labeling/shadowUnder", QVariant( ShadowLowest ) ).toUInt();//ShadowLowest;
   shadowOffsetAngle = layer->customProperty( "labeling/shadowOffsetAngle", QVariant( 135 ) ).toInt();
-  shadowOffsetDist = layer->customProperty( "labeling/shadowOffsetDist", QVariant( 0.0 ) ).toDouble();
+  shadowOffsetDist = layer->customProperty( "labeling/shadowOffsetDist", QVariant( 1.0 ) ).toDouble();
   shadowOffsetUnits = ( SizeUnit )layer->customProperty( "labeling/shadowOffsetUnits", QVariant( MM ) ).toUInt();
   shadowOffsetGlobal = layer->customProperty( "labeling/shadowOffsetGlobal", QVariant( true ) ).toBool();
-  shadowRadius = layer->customProperty( "labeling/shadowRadius", QVariant( 0.0 ) ).toDouble();
+  shadowRadius = layer->customProperty( "labeling/shadowRadius", QVariant( 1.5 ) ).toDouble();
   shadowRadiusUnits = ( SizeUnit )layer->customProperty( "labeling/shadowRadiusUnits", QVariant( MM ) ).toUInt();
   shadowRadiusAlphaOnly = layer->customProperty( "labeling/shadowRadiusAlphaOnly", QVariant( false ) ).toBool();
-  shadowTransparency = layer->customProperty( "labeling/shadowTransparency", QVariant( 0 ) ).toInt();
+  shadowTransparency = layer->customProperty( "labeling/shadowTransparency", QVariant( 30 ) ).toInt();
   shadowScale = layer->customProperty( "labeling/shadowScale", QVariant( 100 ) ).toInt();
   shadowColor = _readColor( layer, "labeling/shadowColor", Qt::black, false );
   shadowBlendMode = QgsMapRenderer::getCompositionMode(