Fix clang warnings, scale truncation to int

Author: nyalldawson

python/core/auto_generated/qgsrulebasedlabeling.sip.in

@@ -35,7 +35,7 @@ class QgsRuleBasedLabeling : QgsAbstractVectorLayerLabeling
 #include "qgsrulebasedlabeling.h"
 %End
       public:
-        Rule( QgsPalLayerSettings *settings /Transfer/, int maximumScale = 0, int minimumScale = 0, const QString &filterExp = QString(), const QString &description = QString(), bool elseRule = false );
+        Rule( QgsPalLayerSettings *settings /Transfer/, double maximumScale = 0, double minimumScale = 0, const QString &filterExp = QString(), const QString &description = QString(), bool elseRule = false );
 %Docstring
 takes ownership of settings, settings may be None
 %End

python/core/auto_generated/symbology/qgssymbollayerutils.sip.in

@@ -717,7 +717,7 @@ Checks if the properties contain scaleMinDenom and scaleMaxDenom, if available,
 .. versionadded:: 3.0
 %End
 
-    static void mergeScaleDependencies( int mScaleMinDenom, int mScaleMaxDenom, QgsStringMap &props );
+    static void mergeScaleDependencies( double mScaleMinDenom, double mScaleMaxDenom, QgsStringMap &props );
 %Docstring
 Merges the local scale limits, if any, with the ones already in the map, if any
 

src/core/qgsrulebasedlabeling.cpp

@@ -54,7 +54,7 @@ QList<QgsAbstractLabelProvider *> QgsRuleBasedLabelProvider::subProviders()
 
 ////////////////////
 
-QgsRuleBasedLabeling::Rule::Rule( QgsPalLayerSettings *settings, int scaleMinDenom, int scaleMaxDenom, const QString &filterExp, const QString &description, bool elseRule )
+QgsRuleBasedLabeling::Rule::Rule( QgsPalLayerSettings *settings, double scaleMinDenom, double scaleMaxDenom, const QString &filterExp, const QString &description, bool elseRule )
   : mSettings( settings )
   , mMaximumScale( scaleMinDenom )
   , mMinimumScale( scaleMaxDenom )
@@ -256,9 +256,9 @@ QDomElement QgsRuleBasedLabeling::Rule::save( QDomDocument &doc, const QgsReadWr
   }
   if ( !mFilterExp.isEmpty() )
     ruleElem.setAttribute( QStringLiteral( "filter" ), mFilterExp );
-  if ( mMaximumScale != 0 )
+  if ( !qgsDoubleNear( mMaximumScale, 0 ) )
     ruleElem.setAttribute( QStringLiteral( "scalemindenom" ), mMaximumScale );
-  if ( mMinimumScale != 0 )
+  if ( !qgsDoubleNear( mMinimumScale, 0 ) )
     ruleElem.setAttribute( QStringLiteral( "scalemaxdenom" ), mMinimumScale );
   if ( !mDescription.isEmpty() )
     ruleElem.setAttribute( QStringLiteral( "description" ), mDescription );

src/core/qgsrulebasedlabeling.h

@@ -53,7 +53,7 @@ class CORE_EXPORT QgsRuleBasedLabeling : public QgsAbstractVectorLayerLabeling
     {
       public:
         //! takes ownership of settings, settings may be nullptr
-        Rule( QgsPalLayerSettings *settings SIP_TRANSFER, int maximumScale = 0, int minimumScale = 0, const QString &filterExp = QString(), const QString &description = QString(), bool elseRule = false );
+        Rule( QgsPalLayerSettings *settings SIP_TRANSFER, double maximumScale = 0, double minimumScale = 0, const QString &filterExp = QString(), const QString &description = QString(), bool elseRule = false );
         ~Rule();
 
         //! Rules cannot be copied.
@@ -79,7 +79,7 @@ class CORE_EXPORT QgsRuleBasedLabeling : public QgsAbstractVectorLayerLabeling
          *
          * \returns True if scale based labeling is active
          */
-        bool dependsOnScale() const { return mMinimumScale != 0 || mMaximumScale != 0; }
+        bool dependsOnScale() const { return !qgsDoubleNear( mMinimumScale, 0.0 ) || !qgsDoubleNear( mMaximumScale, 0 ); }
 
         /**
          * Returns the maximum map scale (i.e. most "zoomed in" scale) at which the label rule will be active.

src/core/symbology/qgssymbollayerutils.cpp

@@ -4201,22 +4201,22 @@ void QgsSymbolLayerUtils::applyScaleDependency( QDomDocument &doc, QDomElement &
   }
 }
 
-void QgsSymbolLayerUtils::mergeScaleDependencies( int mScaleMinDenom, int mScaleMaxDenom, QgsStringMap &props )
+void QgsSymbolLayerUtils::mergeScaleDependencies( double mScaleMinDenom, double mScaleMaxDenom, QgsStringMap &props )
 {
-  if ( mScaleMinDenom != 0 )
+  if ( !qgsDoubleNear( mScaleMinDenom, 0 ) )
   {
     bool ok;
-    int parentScaleMinDenom = props.value( QStringLiteral( "scaleMinDenom" ), QStringLiteral( "0" ) ).toInt( &ok );
+    double parentScaleMinDenom = props.value( QStringLiteral( "scaleMinDenom" ), QStringLiteral( "0" ) ).toDouble( &ok );
     if ( !ok || parentScaleMinDenom <= 0 )
       props[ QStringLiteral( "scaleMinDenom" )] = QString::number( mScaleMinDenom );
     else
       props[ QStringLiteral( "scaleMinDenom" )] = QString::number( std::max( parentScaleMinDenom, mScaleMinDenom ) );
   }
 
-  if ( mScaleMaxDenom != 0 )
+  if ( !qgsDoubleNear( mScaleMaxDenom, 0 ) )
   {
     bool ok;
-    int parentScaleMaxDenom = props.value( QStringLiteral( "scaleMaxDenom" ), QStringLiteral( "0" ) ).toInt( &ok );
+    double parentScaleMaxDenom = props.value( QStringLiteral( "scaleMaxDenom" ), QStringLiteral( "0" ) ).toDouble( &ok );
     if ( !ok || parentScaleMaxDenom <= 0 )
       props[ QStringLiteral( "scaleMaxDenom" )] = QString::number( mScaleMaxDenom );
     else

src/core/symbology/qgssymbollayerutils.h

@@ -654,7 +654,7 @@ class CORE_EXPORT QgsSymbolLayerUtils
       * Merges the local scale limits, if any, with the ones already in the map, if any
       * \since QGIS 3.0
       */
-    static void mergeScaleDependencies( int mScaleMinDenom, int mScaleMaxDenom, QgsStringMap &props );
+    static void mergeScaleDependencies( double mScaleMinDenom, double mScaleMaxDenom, QgsStringMap &props );
 
     /**
      * Encodes a reference to a parametric SVG into SLD, as a succession of parametric SVG using URL parameters,