start PropertyQuantity and InputField

src/App/FeatureTest.cpp

@@ -94,6 +94,8 @@ FeatureTest::FeatureTest()
   ADD_PROPERTY_TYPE(TypeAll     ,(4711),group,(App::PropertyType) (Prop_Output|Prop_ReadOnly |Prop_Hidden ),
       "An example property which has the types 'Output', 'ReadOnly' and 'Hidden'");
  
+  ADD_PROPERTY(Quantity,(1.0));
+
 }
 
 FeatureTest::~FeatureTest()

src/App/FeatureTest.h

@@ -93,6 +93,8 @@ public:
   App::PropertyInteger   TypeAll;
   App::PropertyInteger   TypeTransient;
   
+  App::PropertyQuantity  Quantity;
+
   /** @name methods overide Feature */
   //@{
   /// recalculate the Feature

src/App/PropertyUnits.cpp

@@ -38,6 +38,7 @@
 
 #include "PropertyUnits.h"
 #include <Base/PyObjectBase.h>
+#include <Base/QuantityPy.h>
 
 #define new DEBUG_CLIENTBLOCK
 using namespace App;
@@ -47,6 +48,29 @@ using namespace std;
 
 
 
+//**************************************************************************
+//**************************************************************************
+// PropertyFloatUnit
+//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+TYPESYSTEM_SOURCE(App::PropertyQuantity, App::PropertyFloat);
+
+const char* PropertyQuantity::getEditorName(void) const
+{ 
+
+    return "Gui::PropertyEditor::PropertyUnitItem";
+
+}
+
+PyObject *PropertyQuantity::getPyObject(void)
+{
+    return new QuantityPy (new Quantity( _dValue,_Unit));
+}
+
+void PropertyQuantity::setPyObject(PyObject *value)
+{
+    setValue(UnitsApi::toDblWithUserPrefs(Length,value));
+}
 
 //**************************************************************************
 //**************************************************************************

src/App/PropertyUnits.h

@@ -32,6 +32,7 @@
 #include <vector>
 #include <boost/filesystem/path.hpp>
 
+#include <Base/Unit.h>
 #include "PropertyStandard.h"
 
 namespace Base {
@@ -42,6 +43,25 @@ class Writer;
 namespace App
 {
 
+/** Float with Unit property
+ * This is a property for float with a predefined Unit associated .
+ */
+class AppExport PropertyQuantity : public PropertyFloat
+{
+    TYPESYSTEM_HEADER();
+public:
+    PropertyQuantity(void){}
+    virtual ~PropertyQuantity(){}
+    virtual const char* getEditorName(void) const;
+
+    virtual PyObject *getPyObject(void);
+    virtual void setPyObject(PyObject *);
+
+	void setUnit(const Base::Unit &u){_Unit = u;}
+	const Base::Unit &getUnit(void)const{return _Unit;}
+protected:
+	Base::Unit _Unit;
+};
 
 /** Distance property
  * This is a property for representing distances. It is basically a float