#include "wx/memory.h"
-class WXDLLIMPEXP_BASE wxObject;
+class WXDLLIMPEXP_FWD_BASE wxObject;
+class WXDLLIMPEXP_FWD_BASE wxString;
#ifndef wxUSE_EXTENDED_RTTI
#define wxUSE_EXTENDED_RTTI 0
#endif
+#define DECLARE_CLASS_INFO_ITERATORS() \
+ class WXDLLIMPEXP_BASE const_iterator \
+ { \
+ typedef wxHashTable_Node Node; \
+ public: \
+ typedef const wxClassInfo* value_type; \
+ typedef const value_type& const_reference; \
+ typedef const_iterator itor; \
+ typedef value_type* ptr_type; \
+ \
+ Node* m_node; \
+ wxHashTable* m_table; \
+ public: \
+ typedef const_reference reference_type; \
+ typedef ptr_type pointer_type; \
+ \
+ const_iterator(Node* node, wxHashTable* table) \
+ : m_node(node), m_table(table) { } \
+ const_iterator() : m_node(NULL), m_table(NULL) { } \
+ value_type operator*() const; \
+ itor& operator++(); \
+ const itor operator++(int); \
+ bool operator!=(const itor& it) const \
+ { return it.m_node != m_node; } \
+ bool operator==(const itor& it) const \
+ { return it.m_node == m_node; } \
+ }; \
+ \
+ static const_iterator begin_classinfo(); \
+ static const_iterator end_classinfo();
+
#if wxUSE_EXTENDED_RTTI
#include "wx/xti.h"
#else
// conditional compilation
// ----------------------------------------------------------------------------
-class WXDLLIMPEXP_BASE wxClassInfo;
-class WXDLLIMPEXP_BASE wxHashTable;
-class WXDLLIMPEXP_BASE wxObjectRefData;
+class WXDLLIMPEXP_FWD_BASE wxClassInfo;
+class WXDLLIMPEXP_FWD_BASE wxHashTable;
+class WXDLLIMPEXP_FWD_BASE wxObject;
+class WXDLLIMPEXP_FWD_BASE wxPluginLibrary;
+class WXDLLIMPEXP_FWD_BASE wxObjectRefData;
+class WXDLLIMPEXP_FWD_BASE wxHashTable_Node;
// ----------------------------------------------------------------------------
// wxClassInfo
class WXDLLIMPEXP_BASE wxClassInfo
{
+ friend class WXDLLIMPEXP_FWD_BASE wxObject;
+ friend WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxString& name);
public:
wxClassInfo( const wxChar *className,
const wxClassInfo *baseInfo1,
~wxClassInfo();
- wxObject *CreateObject() const { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
+ wxObject *CreateObject() const
+ { return m_objectConstructor ? (*m_objectConstructor)() : 0; }
bool IsDynamic() const { return (NULL != m_objectConstructor); }
const wxChar *GetClassName() const { return m_className; }
const wxClassInfo *GetBaseClass2() const { return m_baseInfo2; }
int GetSize() const { return m_objectSize; }
- wxObjectConstructorFn GetConstructor() const { return m_objectConstructor; }
+ wxObjectConstructorFn GetConstructor() const
+ { return m_objectConstructor; }
static const wxClassInfo *GetFirst() { return sm_first; }
const wxClassInfo *GetNext() const { return m_next; }
- static wxClassInfo *FindClass(const wxChar *className);
+ static wxClassInfo *FindClass(const wxString& className);
// Climb upwards through inheritance hierarchy.
// Dual inheritance is catered for.
( 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:
+ DECLARE_CLASS_INFO_ITERATORS()
+private:
const wxChar *m_className;
int m_objectSize;
wxObjectConstructorFn m_objectConstructor;
- // Pointers to base wxClassInfos: set in InitializeClasses
+ // Pointers to base wxClassInfos
const wxClassInfo *m_baseInfo1;
const wxClassInfo *m_baseInfo2;
static wxClassInfo *sm_first;
wxClassInfo *m_next;
- // FIXME: this should be private (currently used directly by way too
- // many clients)
static wxHashTable *sm_classTable;
-private:
- // InitializeClasses() helper
- static wxClassInfo *GetBaseByName(const wxChar *name);
-
- DECLARE_NO_COPY_CLASS(wxClassInfo)
-
protected:
// registers the class
void Register();
void Unregister();
-};
-WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxChar *name);
+ DECLARE_NO_COPY_CLASS(wxClassInfo)
+};
-#if WXWIN_COMPATIBILITY_2_4
-inline void wxClassInfo::InitializeClasses() {}
-inline void wxClassInfo::CleanUpClasses() {}
-#endif
+WXDLLIMPEXP_BASE wxObject *wxCreateDynamicObject(const wxString& name);
// ----------------------------------------------------------------------------
// Dynamic class macros
#define _WX_WANT_DELETE_VOID_CONSTCHAR_SIZET
#endif
-// Only VC++ 6.0 and CodeWarrior compilers get overloaded delete that matches new
-#if ( defined(__VISUALC__) && (__VISUALC__ >= 1200) ) || (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
+// Only VC++ 6 and CodeWarrior get overloaded delete that matches new
+#if (defined(__VISUALC__) && (__VISUALC__ >= 1200)) || \
+ (defined(__MWERKS__) && (__MWERKS__ >= 0x2400))
#define _WX_WANT_DELETE_VOID_WXCHAR_INT
#endif
class WXDLLIMPEXP_BASE wxObjectRefData
{
- friend class WXDLLIMPEXP_BASE wxObject;
+ friend class WXDLLIMPEXP_FWD_BASE wxObject;
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; }
+
+ // test for pointer validity: defining conversion to unspecified_bool_type
+ // and not more obvious bool to avoid implicit conversions to integer types
+ typedef T *(wxObjectDataPtr<T>::*unspecified_bool_type)() const;
+ operator unspecified_bool_type() const
+ {
+ return m_ptr ? &wxObjectDataPtr<T>::get : NULL;
+ }
+
+ T& operator*() const
+ {
+ wxASSERT(m_ptr != NULL);
+ return *(m_ptr);
+ }
+
+ T *operator->() const
+ {
+ wxASSERT(m_ptr != NULL);
+ 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;
+ return *this;
+ }
+
+private:
+ T *m_ptr;
+};
+
// ----------------------------------------------------------------------------
// wxObject: the root class of wxWidgets object hierarchy
// ----------------------------------------------------------------------------
// Make sure this object has only one reference
void UnShare() { AllocExclusive(); }
+ // check if this object references the same data as the other one
+ bool IsSameAs(const wxObject& o) const { return m_refData == o.m_refData; }
+
protected:
// ensure that our data is not shared with anybody else: if we have no
// data, it is created using CreateRefData() below, if we have shared data
// it is copied using CloneRefData(), otherwise nothing is done
void AllocExclusive();
- // both methods must be implemented if AllocExclusive() is used, not pure virtual
- // only because of the backwards compatibility reasons
+ // both methods must be implemented if AllocExclusive() is used, not pure
+ // virtual only because of the backwards compatibility reasons
// create a new m_refData
virtual wxObjectRefData *CreateRefData() const;
#if wxUSE_EXTENDED_RTTI
class WXDLLIMPEXP_BASE wxDynamicObject : public wxObject
{
- friend class WXDLLIMPEXP_BASE wxDynamicClassInfo ;
+ friend class WXDLLIMPEXP_FWD_BASE wxDynamicClassInfo ;
public:
// instantiates this object with an instance of its superclass
wxDynamicObject(wxObject* superClassInstance, const wxDynamicClassInfo *info) ;
#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
}
projects / wxWidgets.git / blobdiff