destroy m_impl even if an exception is thrown from the main loop

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

diff --git a/include/wx/object.h b/include/wx/object.h
index f9d9f2be9bccfbc3bfa367b27b7e4d119324c108..8e01743039131f62666c34a5be4e42c71f8b34d2 100644 (file)
--- a/include/wx/object.h
+++ b/include/wx/object.h
@@ -94,13 +94,6 @@ public:
                  ( m_baseInfo2 && m_baseInfo2->IsKindOf(info) ) );
     }
 
-#if WXWIN_COMPATIBILITY_2_4
-    // Initializes parent pointers and hash table for fast searching.
-    wxDEPRECATED( static void InitializeClasses() );
-    // Cleans up hash table used for fast searching.
-    wxDEPRECATED( static void CleanUpClasses() );
-#endif
-
 public:
     const wxChar            *m_className;
     int                      m_objectSize;
@@ -135,11 +128,6 @@ protected:
 
 WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxChar *name);
 
-#if WXWIN_COMPATIBILITY_2_4
-inline void wxClassInfo::InitializeClasses() {}
-inline void wxClassInfo::CleanUpClasses() {}
-#endif
-
 // ----------------------------------------------------------------------------
 // Dynamic class macros
 // ----------------------------------------------------------------------------
@@ -392,14 +380,83 @@ class WXDLLIMPEXP_BASE wxObjectRefData
 
 public:
     wxObjectRefData() : m_count(1) { }
-    virtual ~wxObjectRefData() { }
 
     int GetRefCount() const { return m_count; }
 
+    void IncRef() { m_count++; }
+    void DecRef();
+
+protected:
+    // this object should never be destroyed directly but only as a
+    // result of a DecRef() call:
+    virtual ~wxObjectRefData() { }
+
 private:
+    // our refcount:
     int m_count;
 };
 
+// ----------------------------------------------------------------------------
+// wxObjectDataPtr: helper class to avoid memleaks because of missing calls
+//                  to wxObjectRefData::DecRef
+// ----------------------------------------------------------------------------
+
+template <class T>
+class wxObjectDataPtr
+{
+public:
+    typedef T element_type;
+
+    wxEXPLICIT wxObjectDataPtr(T *ptr = NULL) : m_ptr(ptr) {}
+
+    // copy ctor
+    wxObjectDataPtr(const wxObjectDataPtr<T> &tocopy) 
+        : m_ptr(tocopy.m_ptr)
+    { 
+        if (m_ptr)
+            m_ptr->IncRef(); 
+    }
+
+    ~wxObjectDataPtr() 
+    { 
+        if (m_ptr) 
+            m_ptr->DecRef(); 
+    }
+
+    T *get() const { return m_ptr; }
+    T *operator->() const { return get(); }
+
+    void reset(T *ptr)
+    {
+        if (m_ptr)
+            m_ptr->DecRef();
+        m_ptr = ptr;
+    }
+
+    wxObjectDataPtr& operator=(const wxObjectDataPtr &tocopy)
+    { 
+        if (m_ptr) 
+            m_ptr->DecRef(); 
+        m_ptr = tocopy.m_ptr; 
+        if (m_ptr)
+            m_ptr->IncRef(); 
+        return *this;
+    }
+
+    wxObjectDataPtr& operator=(T *ptr)
+    { 
+        if (m_ptr) 
+            m_ptr->DecRef(); 
+        m_ptr = ptr; 
+        if (m_ptr)
+            m_ptr->IncRef(); 
+        return *this;
+    }
+
+private:
+    T *m_ptr;
+};
+
 // ----------------------------------------------------------------------------
 // wxObject: the root class of wxWidgets object hierarchy
 // ----------------------------------------------------------------------------
@@ -520,7 +577,8 @@ public:
 #ifdef _MSC_VER
         return (wxClassInfo*) m_classInfo;
 #else
-        return wx_const_cast(wxClassInfo *, m_classInfo);
+        wxDynamicClassInfo *nonconst = wx_const_cast(wxDynamicClassInfo *, m_classInfo);
+        return wx_static_cast(wxClassInfo *, nonconst);
 #endif
     }