Eeschema, Modedit: void fields (mainly the footprint field) now cannot be...

Eeschema, Modedit: void fields (mainly the footprint field) now cannot be selected when click on them.

eeschema/lib_field.cpp

@@ -350,6 +350,11 @@ void LIB_FIELD::drawGraphic( WinEDA_DrawPanel* aPanel, wxDC* aDC, const wxPoint&
 
 bool LIB_FIELD::HitTest( const wxPoint& aPosition )
 {
+    // Because HitTest is mainly used to select the field
+    // return always false if this field is void
+    if( IsVoid() )
+        return false;
+
     return HitTest( aPosition, 0, DefaultTransform );
 }
 

eeschema/lib_field.h

@@ -106,6 +106,15 @@ public:
 
     void          SetFields( const std::vector <LIB_FIELD> aFields );
 
+    /**
+     * Function IsVoid
+     * @return true if the field value is void (no text in this field)
+     */
+    bool IsVoid()
+    {
+        return m_Text.IsEmpty();
+    }
+
     /**
      * Function IsVisible
      * @return true is this field is visible, false if flagged invisible