Applied hidden copy / ctor patch as suggested in STR 860

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@4421 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

CHANGES

@@ -2,6 +2,7 @@ CHANGES IN FLTK 1.1.7
 
 	- Documentation fixes (STR #648, STR #692, STR #730, STR
 	  #744, STR #745)
+	- Improved hidden copy / ctor implementation (STR #860)
 	- Increased matrix stack depth and added over/underfolw error
 	  (STR #924)
 	- Reverted Mac Carbon Clipping simplification that broke

FL/Fl_Group.H

@@ -42,6 +42,10 @@ class FL_EXPORT Fl_Group : public Fl_Widget {
 
   int navigation(int);
   static Fl_Group *current_;
+ 
+  // unimplemented copy ctor and assignment operator
+  Fl_Group(const Fl_Group&);
+  Fl_Group& operator=(const Fl_Group&);
 
 protected:
 

FL/Fl_Widget.H

@@ -71,13 +71,9 @@ class FL_EXPORT Fl_Widget {
 
   const char *tooltip_;
 
-#  if !defined(WIN32) || !defined(FL_DLL)
-  // "de-implement" the copy constructors, EXCEPT for when we are using the
-  // WIN32 DLL interface, in which case we can't hide them because Microsoft
-  // requires the copy constructors to implement subclassing...
-  Fl_Widget & operator=(const Fl_Widget &) { return *this; }
-  Fl_Widget(const Fl_Widget &) {}
-#  endif // !WIN32 || !FL_DLL
+  // unimplemented copy ctor and assignment operator
+  Fl_Widget(const Fl_Widget &);
+  Fl_Widget& operator=(const Fl_Widget &);
 
 protected:
 

FL/Fl_Window.H

@@ -60,6 +60,10 @@ class FL_EXPORT Fl_Window : public Fl_Group {
   };
   void _Fl_Window(); // constructor innards
 
+  // unimplemented copy ctor and assignment operator
+  Fl_Window(const Fl_Window&);
+  Fl_Window& operator=(const Fl_Window&);
+
 protected:
 
   static Fl_Window *current_;