extracted wxWrapSizer in separate files and somewhat improved it (heavily modified...

[wxWidgets.git] / include / wx / weakref.h

diff --git a/include/wx/weakref.h b/include/wx/weakref.h
index 99621fca4997b1b9764b3cdd438812d8e5e01bd5..6691b60d6d502e53f8acceda534d0e8daeef569d 100644 (file)
--- a/include/wx/weakref.h
+++ b/include/wx/weakref.h
@@ -59,7 +59,7 @@ protected:
         }
     }
 
-    void AssignCopy( const wxWeakRefStatic& wr )
+    void AssignCopy(const wxWeakRefStatic& wr)
     {
         Assign( wr.m_pobj );
     }
@@ -74,8 +74,13 @@ protected:
     T *m_pobj;
 };
 
-#ifdef HAVE_PARTIAL_SPECIALIZATION
 
+#if !defined(HAVE_PARTIAL_SPECIALIZATION) || !defined(HAVE_TEMPLATE_OVERLOAD_RESOLUTION)
+    #define USE_STATIC_WEAKREF
+#endif 
+
+
+#ifndef USE_STATIC_WEAKREF
 template<class T,bool use_static>
 struct wxWeakRefImpl;
 
@@ -139,7 +144,7 @@ protected:
 
     void AssignCopy(const wxWeakRefImpl& wr)
     {
-        DoAssign( wr.m_pobj, wr.m_ptbase );
+        DoAssign(wr.m_pobj, wr.m_ptbase);
     }
 
     void DoAssign( T* pobj, wxTrackable *ptbase ) {
@@ -169,17 +174,18 @@ protected:
     wxTrackable *m_ptbase;
 };
 
-#endif // HAVE_PARTIAL_SPECIALIZATION
+#endif // #ifndef USE_STATIC_WEAKREF
+
 
 
 // A weak reference to an object of type T, where T has type wxTrackable
 // (usually statically but if not dynamic_cast<> is tried).
 template <class T>
 class wxWeakRef : public
-#ifdef HAVE_PARTIAL_SPECIALIZATION
-                  wxWeakRefImpl<T, wxIsStaticTrackable<T>::value>
-#else
+#ifdef USE_STATIC_WEAKREF
                   wxWeakRefStatic<T>
+#else
+                  wxWeakRefImpl<T, wxIsStaticTrackable<T>::value>
 #endif
 {
 public:
@@ -194,6 +200,12 @@ public:
         Assign(pobj);
     }
 
+    // We need this copy ctor, since otherwise a default compiler (binary) copy happens
+    wxWeakRef(const wxWeakRef<T>& wr)
+    {
+        Assign(wr.get());
+    }
+    
     template <class TDerived>
     wxWeakRef<T>& operator=(TDerived* pobj)
     {
@@ -207,27 +219,20 @@ public:
         return *this;
     }
 
-    virtual ~wxWeakRef() { Release(); }
+    virtual ~wxWeakRef() { this->Release(); }
 
     // Smart pointer functions
-    T& operator*() const { return *m_pobj; }
-    T* operator->() const { return m_pobj; }
+    T& operator*() const { return *this->m_pobj; }
+    T* operator->() const { return this->m_pobj; }
 
-    T* get() const { return m_pobj; }
-
-    // test for pointer validity: defining conversion to unspecified_bool_type
-    // and not more obvious bool to avoid implicit conversions to integer types
-    typedef T *(wxWeakRef<T>::*unspecified_bool_type)() const;
-    operator unspecified_bool_type() const
-    {
-        return this->m_pobj ? &wxWeakRef<T>::get : NULL;
-    }
+    T* get() const { return this->m_pobj; }
+    operator T*() const { return get(); }
 };
 
 
 // Weak ref implementation assign objects are queried for wxTrackable
 // using dynamic_cast<>
-template<class T>
+template <class T>
 class wxWeakRefDynamic : public wxTrackerNode
 {
 public:
@@ -300,11 +305,6 @@ protected:
         }
     }
 
-    void AssignCopy(const wxWeakRefDynamic& wr)
-    {
-        Assign(wr.m_pobj);
-    }
-
     virtual void OnObjectDestroy()
     {
         wxASSERT_MSG( m_pobj, "tracked object should have removed us itself" );
@@ -317,7 +317,7 @@ protected:
 
 // Provide some basic types of weak references
 class WXDLLIMPEXP_FWD_BASE wxEvtHandler;
-class WXDLLIMPEXP_FWD_BASE wxWindow;
+class WXDLLIMPEXP_FWD_CORE wxWindow;
 
 typedef wxWeakRef<wxEvtHandler>  wxEvtHandlerRef;
 typedef wxWeakRef<wxWindow>      wxWindowRef;