Imperial Sketcher grid in Dialog

src/Base/UnitsApi.cpp

@@ -60,6 +60,7 @@ using namespace Base;
 double UnitsApi::defaultFactor = 1.0;
 
 UnitsSchema  *UnitsApi::UserPrefSystem = new UnitsSchemaInternal();
+UnitSystem    UnitsApi::actSystem = SI1;
 
 //double   UnitsApi::UserPrefFactor [50];
 //QString  UnitsApi::UserPrefUnit   [50];
@@ -88,6 +89,7 @@ void UnitsApi::setSchema(UnitSystem s)
         case SI2 : UserPrefSystem = new UnitsSchemaMKS(); break;
         case Imperial1: UserPrefSystem = new UnitsSchemaImperial1(); break;
     }
+    actSystem = s;
     UserPrefSystem->setSchemaUnits(); // if necesarry a unit schema can change the constants in Quantity (e.g. mi=1.8km rather then 1.6km).
 }
 

src/Base/UnitsApi.h

@@ -61,6 +61,8 @@ public:
      * for representative strings.
      */
     static void setSchema(UnitSystem s);
+    /// return the active schema
+    static UnitSystem getSchema(void){return actSystem;}
 
 	static QString schemaTranslate(Base::Quantity quant,double &factor,QString &unitString);
     static QString schemaTranslate(Base::Quantity quant){ // to satisfy GCC
@@ -92,7 +94,7 @@ public:
 protected:
     // not used at the moment
     static UnitsSchema *  UserPrefSystem;
-
+    static UnitSystem actSystem;
     /// number of decimals for floats
     static int      UserPrefDecimals;