]> git.saurik.com Git - wxWidgets.git/blobdiff - include/wx/dynarray.h
Removed unnecessary code from utilsunx.cpp
[wxWidgets.git] / include / wx / dynarray.h
index 1afdd853160cdfe26a84177f4c64281e24ff58fd..109a89437c2b079649c3f23a2c402c470c8bb685 100644 (file)
@@ -19,7 +19,7 @@
 #include "wx/defs.h"
 #include "wx/debug.h"
 
 #include "wx/defs.h"
 #include "wx/debug.h"
 
-/** @name Dynamic arrays and lists
+/** @name Dynamic arrays and object arrays (array which own their elements)
     @memo Arrays which grow on demand and do range checking (only in debug)
   */
 //@{
     @memo Arrays which grow on demand and do range checking (only in debug)
   */
 //@{
@@ -29,7 +29,7 @@
 // ----------------------------------------------------------------------------
 
 /**
 // ----------------------------------------------------------------------------
 
 /**
- the initial size by which an array/list grows when an element is added
+ the initial size by which an array grows when an element is added
  default value avoids allocate one or two bytes when the array is created
  which is rather inefficient
 */
  default value avoids allocate one or two bytes when the array is created
  which is rather inefficient
 */
  callback compare function for quick sort
  must return negative value, 0 or positive value if pItem1 <, = or > pItem2
  */
  callback compare function for quick sort
  must return negative value, 0 or positive value if pItem1 <, = or > pItem2
  */
-
-#ifdef  __VISUALC__
-  #define   CMPFUNC_CONV    _cdecl
-#else   // !Visual C++
-  #define   CMPFUNC_CONV
-#endif  // compiler
-typedef int (CMPFUNC_CONV *CMPFUNC)(const void* pItem1, const void* pItem2);
+typedef int (wxCMPFUNC_CONV *CMPFUNC)(const void* pItem1, const void* pItem2);
 
 // ----------------------------------------------------------------------------
 /**
 
 // ----------------------------------------------------------------------------
 /**
@@ -61,10 +55,10 @@ typedef int (CMPFUNC_CONV *CMPFUNC)(const void* pItem1, const void* pItem2);
      so it's not too important if it's not called (this happens when you cast
      "SomeArray *" as "BaseArray *" and then delete it)
 
      so it's not too important if it's not called (this happens when you cast
      "SomeArray *" as "BaseArray *" and then delete it)
 
-  @memo Base class for template array and list classes
+  @memo Base class for template array classes
 */
 // ----------------------------------------------------------------------------
 */
 // ----------------------------------------------------------------------------
-class wxBaseArray
+class WXDLLEXPORT wxBaseArray
 {
 public:
   /** @name ctors and dtor */
 {
 public:
   /** @name ctors and dtor */
@@ -85,32 +79,35 @@ public:
 
   /** @name memory management */
   //@{
 
   /** @name memory management */
   //@{
-    /// empties the list, but doesn't release memory
-  void Empty() { m_uiCount = 0; }
-    /// empties the list and releases memory
+    /// empties the array, but doesn't release memory
+  void Empty() { m_nCount = 0; }
+    /// empties the array and releases memory
   void Clear();
     /// preallocates memory for given number of items
   void Alloc(size_t uiSize);
   void Clear();
     /// preallocates memory for given number of items
   void Alloc(size_t uiSize);
+    /// minimizes the memory used by the array (frees unused memory)
+  void Shrink();
   //@}
 
   /** @name simple accessors */
   //@{
     /// number of elements in the array
   //@}
 
   /** @name simple accessors */
   //@{
     /// number of elements in the array
-  size_t  Count() const   { return m_uiCount;      }
+  size_t  Count() const   { return m_nCount;      }
+  size_t  GetCount() const   { return m_nCount;      }
     /// is it empty?
     /// is it empty?
-  bool  IsEmpty() const { return m_uiCount == 0; }
+  bool  IsEmpty() const { return m_nCount == 0; }
   //@}
 
 protected:
   // these methods are protected because if they were public one could
   //@}
 
 protected:
   // these methods are protected because if they were public one could
-  // mistakenly call one of them instead of DEFINE_ARRAY's or LIST's
+  // mistakenly call one of them instead of DEFINE_ARRAY's or OBJARRAY's
   // type safe methods
 
   /** @name items access */
   //@{
     /// get item at position uiIndex (range checking is done in debug version)
   long& Item(size_t uiIndex) const
   // type safe methods
 
   /** @name items access */
   //@{
     /// get item at position uiIndex (range checking is done in debug version)
   long& Item(size_t uiIndex) const
-    { wxASSERT( uiIndex < m_uiCount ); return m_pItems[uiIndex]; }
+    { wxASSERT( uiIndex < m_nCount ); return m_pItems[uiIndex]; }
     /// same as Item()
   long& operator[](size_t uiIndex) const { return Item(uiIndex); }
   //@}
     /// same as Item()
   long& operator[](size_t uiIndex) const { return Item(uiIndex); }
   //@}
@@ -120,8 +117,8 @@ protected:
     /**
       Search the element in the array, starting from the either side
       @param bFromEnd if TRUE, start from the end
     /**
       Search the element in the array, starting from the either side
       @param bFromEnd if TRUE, start from the end
-      @return index of the first item matched or NOT_FOUND
-      @see NOT_FOUND
+      @return index of the first item matched or wxNOT_FOUND
+      @see wxNOT_FOUND
      */
   int Index(long lItem, bool bFromEnd = FALSE) const;
     /// search for an item using binary search in a sorted array
      */
   int Index(long lItem, bool bFromEnd = FALSE) const;
     /// search for an item using binary search in a sorted array
@@ -135,7 +132,7 @@ protected:
     /// remove first item matching this value
   void Remove(long lItem);
     /// remove item by index
     /// remove first item matching this value
   void Remove(long lItem);
     /// remove item by index
-  void Remove(size_t uiIndex);
+  void RemoveAt(size_t uiIndex);
   //@}
 
   /// sort array elements using given compare function
   //@}
 
   /// sort array elements using given compare function
@@ -144,8 +141,8 @@ protected:
 private:
   void    Grow();     // makes array bigger if needed
 
 private:
   void    Grow();     // makes array bigger if needed
 
-  size_t    m_uiSize,   // current size of the array
-          m_uiCount;  // current number of elements
+  size_t  m_nSize,    // current size of the array
+          m_nCount;   // current number of elements
 
   long   *m_pItems;   // pointer to data
 };
 
   long   *m_pItems;   // pointer to data
 };
@@ -154,27 +151,41 @@ private:
 // template classes
 // ============================================================================
 
 // template classes
 // ============================================================================
 
+// resolves the name conflict between the wxT() macor and T typedef: we can't
+// use wxT() inside WX_DEFINE_ARRAY!
+#define _WX_ERROR_SIZEOF   wxT("illegal use of DEFINE_ARRAY")
+#define _WX_ERROR_REMOVE   wxT("removing inexisting element in wxArray::Remove")
+
 // ----------------------------------------------------------------------------
 // This macro generates a new array class. It is intended for storage of simple
 // types of sizeof()<=sizeof(long) or pointers if sizeof(pointer)<=sizeof(long)
 //
 // NB: it has only inline functions => takes no space at all
 // ----------------------------------------------------------------------------
 // This macro generates a new array class. It is intended for storage of simple
 // types of sizeof()<=sizeof(long) or pointers if sizeof(pointer)<=sizeof(long)
 //
 // NB: it has only inline functions => takes no space at all
+// Mod by JACS: Salford C++ doesn't like 'var->operator=' syntax, as in:
+//    { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src);
+// so using a temporary variable instead.
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
-#define  _WX_DEFINE_ARRAY(T, name)                                  \
+#define  _WX_DEFINE_ARRAY(T, name, classexp)                        \
 typedef int (CMPFUNC_CONV *CMPFUNC##T)(T *pItem1, T *pItem2);       \
 typedef int (CMPFUNC_CONV *CMPFUNC##T)(T *pItem1, T *pItem2);       \
-class name : public wxBaseArray                                     \
+classexp name : public wxBaseArray                                  \
 {                                                                   \
 public:                                                             \
   name()                                                            \
 {                                                                   \
 public:                                                             \
   name()                                                            \
-    { wxASSERT( sizeof(T) <= sizeof(long) ); }                      \
+  {                                                                 \
+    size_t type = sizeof(T);                                        \
+    size_t sizelong = sizeof(long);                                 \
+    if ( type > sizelong )                                          \
+      { wxFAIL_MSG( _WX_ERROR_SIZEOF ); }                           \
+  }                                                                 \
                                                                     \
   name& operator=(const name& src)                                  \
                                                                     \
   name& operator=(const name& src)                                  \
-    { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src);    \
+    { wxBaseArray* temp = (wxBaseArray*) this;                      \
+      (*temp) = ((const wxBaseArray&)src);                          \
       return *this; }                                               \
                                                                     \
       return *this; }                                               \
                                                                     \
-  T& operator[](size_t uiIndex) const                                 \
+  T& operator[](size_t uiIndex) const                               \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
-  T& Item(size_t uiIndex) const                                       \
+  T& Item(size_t uiIndex) const                                     \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
   T& Last() const                                                   \
     { return (T&)(wxBaseArray::Item(Count() - 1)); }                \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
   T& Last() const                                                   \
     { return (T&)(wxBaseArray::Item(Count() - 1)); }                \
@@ -184,15 +195,16 @@ public:                                                             \
                                                                     \
   void Add(T Item)                                                  \
     { wxBaseArray::Add((long)Item); }                               \
                                                                     \
   void Add(T Item)                                                  \
     { wxBaseArray::Add((long)Item); }                               \
-  void Insert(T Item, size_t uiIndex)                                 \
+  void Insert(T Item, size_t uiIndex)                               \
     { wxBaseArray::Insert((long)Item, uiIndex) ; }                  \
                                                                     \
     { wxBaseArray::Insert((long)Item, uiIndex) ; }                  \
                                                                     \
-  void Remove(size_t uiIndex) { wxBaseArray::Remove(uiIndex); }       \
+  void Remove(size_t uiIndex) { RemoveAt(uiIndex); }                \
+  void RemoveAt(size_t uiIndex) { wxBaseArray::RemoveAt(uiIndex); } \
   void Remove(T Item)                                               \
     { int iIndex = Index(Item);                                     \
   void Remove(T Item)                                               \
     { int iIndex = Index(Item);                                     \
-      wxCHECK2_MSG( iIndex != NOT_FOUND, return,                    \
-        "removing inexisting element in wxArray::Remove" );         \
-      wxBaseArray::Remove((size_t)iIndex); }                          \
+      wxCHECK2_MSG( iIndex != wxNOT_FOUND, return,                  \
+         _WX_ERROR_REMOVE);                                         \
+      wxBaseArray::RemoveAt((size_t)iIndex); }                      \
                                                                     \
   void Sort(CMPFUNC##T fCmp) { wxBaseArray::Sort((CMPFUNC)fCmp); }  \
 }
                                                                     \
   void Sort(CMPFUNC##T fCmp) { wxBaseArray::Sort((CMPFUNC)fCmp); }  \
 }
@@ -213,23 +225,32 @@ public:                                                             \
 // the normal arrays otherwise.
 //
 // NB: it has only inline functions => takes no space at all
 // the normal arrays otherwise.
 //
 // NB: it has only inline functions => takes no space at all
+// Mod by JACS: Salford C++ doesn't like 'var->operator=' syntax, as in:
+//    { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src);
+// so using a temporary variable instead.
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
-#define  _WX_DEFINE_SORTED_ARRAY(T, name)                           \
+#define  _WX_DEFINE_SORTED_ARRAY(T, name, classexp)                 \
 typedef int (CMPFUNC_CONV *SCMPFUNC##T)(T pItem1, T pItem2);        \
 typedef int (CMPFUNC_CONV *SCMPFUNC##T)(T pItem1, T pItem2);        \
-class name : public wxBaseArray                                     \
+classexp name : public wxBaseArray                                  \
 {                                                                   \
 public:                                                             \
   name(SCMPFUNC##T fn)                                              \
 {                                                                   \
 public:                                                             \
   name(SCMPFUNC##T fn)                                              \
-    { wxASSERT( sizeof(T) <= sizeof(long) ); m_fnCompare = fn; }    \
+  { size_t type = sizeof(T);                                        \
+    size_t sizelong = sizeof(long);                                 \
+    if ( type > sizelong )                                          \
+      { wxFAIL_MSG( _WX_ERROR_SIZEOF ); }                           \
+    m_fnCompare = fn;                                               \
+  }                                                                 \
                                                                     \
   name& operator=(const name& src)                                  \
                                                                     \
   name& operator=(const name& src)                                  \
-    { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src);    \
+    { wxBaseArray* temp = (wxBaseArray*) this;                      \
+      (*temp) = ((const wxBaseArray&)src);                          \
       m_fnCompare = src.m_fnCompare;                                \
       return *this; }                                               \
                                                                     \
       m_fnCompare = src.m_fnCompare;                                \
       return *this; }                                               \
                                                                     \
-  T& operator[](size_t uiIndex) const                                 \
+  T& operator[](size_t uiIndex) const                               \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
-  T& Item(size_t uiIndex) const                                       \
+  T& Item(size_t uiIndex) const                                     \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
   T& Last() const                                                   \
     { return (T&)(wxBaseArray::Item(Count() - 1)); }                \
     { return (T&)(wxBaseArray::Item(uiIndex)); }                    \
   T& Last() const                                                   \
     { return (T&)(wxBaseArray::Item(Count() - 1)); }                \
@@ -240,23 +261,24 @@ public:                                                             \
   void Add(T Item)                                                  \
     { wxBaseArray::Add((long)Item, (CMPFUNC)m_fnCompare); }         \
                                                                     \
   void Add(T Item)                                                  \
     { wxBaseArray::Add((long)Item, (CMPFUNC)m_fnCompare); }         \
                                                                     \
-  void Remove(size_t uiIndex) { wxBaseArray::Remove(uiIndex); }       \
+  void Remove(size_t uiIndex) { RemoveAt(uiIndex); }                \
+  void RemoveAt(size_t uiIndex) { wxBaseArray::RemoveAt(uiIndex); } \
   void Remove(T Item)                                               \
     { int iIndex = Index(Item);                                     \
   void Remove(T Item)                                               \
     { int iIndex = Index(Item);                                     \
-      wxCHECK2_MSG( iIndex != NOT_FOUND, return,                    \
-        "removing inexisting element in wxArray::Remove" );         \
-      wxBaseArray::Remove((size_t)iIndex); }                          \
+      wxCHECK2_MSG( iIndex != wxNOT_FOUND, return,                  \
+        _WX_ERROR_REMOVE );                                         \
+      wxBaseArray::RemoveAt((size_t)iIndex); }                      \
                                                                     \
 private:                                                            \
   SCMPFUNC##T m_fnCompare;                                          \
 }
 
 // ----------------------------------------------------------------------------
                                                                     \
 private:                                                            \
   SCMPFUNC##T m_fnCompare;                                          \
 }
 
 // ----------------------------------------------------------------------------
-// see WX_DECLARE_LIST and WX_DEFINE_LIST
+// see WX_DECLARE_OBJARRAY and WX_DEFINE_OBJARRAY
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
-#define _WX_DECLARE_LIST(T, name)                                   \
+#define _WX_DECLARE_OBJARRAY(T, name, classexp)                     \
 typedef int (CMPFUNC_CONV *CMPFUNC##T)(T** pItem1, T** pItem2);     \
 typedef int (CMPFUNC_CONV *CMPFUNC##T)(T** pItem1, T** pItem2);     \
-class name : public wxBaseArray                                     \
+classexp name : public wxBaseArray                                  \
 {                                                                   \
 public:                                                             \
   name() { }                                                        \
 {                                                                   \
 public:                                                             \
   name() { }                                                        \
@@ -265,9 +287,9 @@ public:                                                             \
                                                                     \
   ~name();                                                          \
                                                                     \
                                                                     \
   ~name();                                                          \
                                                                     \
-  T& operator[](size_t uiIndex) const                                 \
+  T& operator[](size_t uiIndex) const                               \
     { return *(T*)wxBaseArray::Item(uiIndex); }                     \
     { return *(T*)wxBaseArray::Item(uiIndex); }                     \
-  T& Item(size_t uiIndex) const                                       \
+  T& Item(size_t uiIndex) const                                     \
     { return *(T*)wxBaseArray::Item(uiIndex); }                     \
   T& Last() const                                                   \
     { return *(T*)(wxBaseArray::Item(Count() - 1)); }               \
     { return *(T*)wxBaseArray::Item(uiIndex); }                     \
   T& Last() const                                                   \
     { return *(T*)(wxBaseArray::Item(Count() - 1)); }               \
@@ -278,16 +300,17 @@ public:                                                             \
   void Add(const T* pItem)                                          \
     { wxBaseArray::Add((long)pItem); }                              \
                                                                     \
   void Add(const T* pItem)                                          \
     { wxBaseArray::Add((long)pItem); }                              \
                                                                     \
-  void Insert(const T& Item,  size_t uiIndex);                        \
-  void Insert(const T* pItem, size_t uiIndex)                         \
+  void Insert(const T& Item,  size_t uiIndex);                      \
+  void Insert(const T* pItem, size_t uiIndex)                       \
     { wxBaseArray::Insert((long)pItem, uiIndex); }                  \
                                                                     \
   void Empty();                                                     \
                                                                     \
     { wxBaseArray::Insert((long)pItem, uiIndex); }                  \
                                                                     \
   void Empty();                                                     \
                                                                     \
-  T*   Detach(size_t uiIndex)                                         \
+  T*   Detach(size_t uiIndex)                                       \
     { T* p = (T*)wxBaseArray::Item(uiIndex);                        \
     { T* p = (T*)wxBaseArray::Item(uiIndex);                        \
-      wxBaseArray::Remove(uiIndex); return p; }                     \
-  void Remove(size_t uiIndex);                                        \
+      wxBaseArray::RemoveAt(uiIndex); return p; }                   \
+  void Remove(size_t uiIndex) { RemoveAt(uiIndex); }                \
+  void RemoveAt(size_t uiIndex);                                    \
                                                                     \
   void Sort(CMPFUNC##T fCmp) { wxBaseArray::Sort((CMPFUNC)fCmp); }  \
                                                                     \
                                                                     \
   void Sort(CMPFUNC##T fCmp) { wxBaseArray::Sort((CMPFUNC)fCmp); }  \
                                                                     \
@@ -296,17 +319,17 @@ private:                                                            \
 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------
-/** @name Macros for definition of dynamic arrays and lists
+/** @name Macros for definition of dynamic arrays and objarrays
 
   These macros are ugly (especially if you look in the sources ;-), but they
   allow us to define 'template' classes without actually using templates.
   <BR>
   <BR>
 
   These macros are ugly (especially if you look in the sources ;-), but they
   allow us to define 'template' classes without actually using templates.
   <BR>
   <BR>
-  Range checking is performed in debug build for both arrays and lists. Type
-  checking is done at compile-time. Warning: arrays <I>never</I> shrink, they
-  only grow, so loading 10 millions in an array only to delete them 2 lines
-  below is <I>not</I> recommended. However, it does free memory when it's
-  destroyed, so if you destroy array also, it's ok.
+  Range checking is performed in debug build for both arrays and objarrays.
+  Type checking is done at compile-time. Warning: arrays <I>never</I> shrink,
+  they only grow, so loading 10 millions in an array only to delete them 2
+  lines below is <I>not</I> recommended. However, it does free memory when
+  it's destroyed, so if you destroy array also, it's ok.
   */
 // ----------------------------------------------------------------------------
 
   */
 // ----------------------------------------------------------------------------
 
@@ -320,88 +343,137 @@ private:                                                            \
 
    @memo declare and define array class 'name' containing elements of type 'T'
   */
 
    @memo declare and define array class 'name' containing elements of type 'T'
   */
-#define WX_DEFINE_ARRAY(T, name)  typedef T _A##name;                        \
-                                  _WX_DEFINE_ARRAY(_A##name, name)
+#define WX_DEFINE_ARRAY(T, name)                \
+    typedef T _A##name;                         \
+    _WX_DEFINE_ARRAY(_A##name, name, class)
 
   /**
    This macro does the same as WX_DEFINE_ARRAY except that the array will be
    sorted with the specified compare function.
    */
 
   /**
    This macro does the same as WX_DEFINE_ARRAY except that the array will be
    sorted with the specified compare function.
    */
-#define WX_DEFINE_SORTED_ARRAY(T, name)  typedef T _A##name;                 \
-                                  _WX_DEFINE_SORTED_ARRAY(_A##name, name)
+#define WX_DEFINE_SORTED_ARRAY(T, name)             \
+    typedef T _A##name;                             \
+    _WX_DEFINE_SORTED_ARRAY(_A##name, name, class)
 
   /**
 
   /**
-   This macro generates a new list class which owns the objects it contains,
-   i.e. it will delete them when it is destroyed. An element is of type T*,
-   but arguments of type T& are taken (see below!) and T& is returned.
-   <BR>
+   This macro generates a new objarrays class which owns the objects it
+   contains, i.e. it will delete them when it is destroyed. An element is of
+   type T*, but arguments of type T& are taken (see below!) and T& is
+   returned. <BR>
    Don't use this for simple types such as "int" or "long"!
    You _may_ use it for "double" but it's awfully inefficient.
    <BR>
    <BR>
    Note on Add/Insert functions:
    <BR>
    Don't use this for simple types such as "int" or "long"!
    You _may_ use it for "double" but it's awfully inefficient.
    <BR>
    <BR>
    Note on Add/Insert functions:
    <BR>
-    1) function(T*) gives the object to the list, i.e. it will delete the
-       object when it's removed or in the list's dtor
+    1) function(T*) gives the object to the array, i.e. it will delete the
+       object when it's removed or in the array's dtor
    <BR>
     2) function(T&) will create a copy of the object and work with it
    <BR>
    <BR>
    Also:
    <BR>
    <BR>
     2) function(T&) will create a copy of the object and work with it
    <BR>
    <BR>
    Also:
    <BR>
-    1) Remove() will delete the object after removing it from the list
+    1) Remove() will delete the object after removing it from the array
    <BR>
    <BR>
-    2) Detach() just removes the object from the list (returning pointer to it)
+    2) Detach() just removes the object from the array (returning pointer to it)
    <BR>
    <BR>
    NB1: Base type T should have an accessible copy ctor  if  Add(T&) is used,
    <BR>
    <BR>
    <BR>
    NB1: Base type T should have an accessible copy ctor  if  Add(T&) is used,
    <BR>
-   NB2: Never ever cast a list to it's base type: as dtor is <B>not</B> virtual
+   NB2: Never ever cast a array to it's base type: as dtor is <B>not</B> virtual
         it will provoke memory leaks
    <BR>
    <BR>
    some functions of this class are not inline, so it takes some space to
    define new class from this template.
 
         it will provoke memory leaks
    <BR>
    <BR>
    some functions of this class are not inline, so it takes some space to
    define new class from this template.
 
-   @memo declare list class 'name' containing elements of type 'T'
+   @memo declare objarray class 'name' containing elements of type 'T'
   */
   */
-#define WX_DECLARE_LIST(T, name)  typedef T _L##name;                 \
-                                  _WX_DECLARE_LIST(_L##name, name)
+#define WX_DECLARE_OBJARRAY(T, name)            \
+    typedef T _L##name;                         \
+    _WX_DECLARE_OBJARRAY(_L##name, name, class)
+
   /**
   /**
-    To use a list class you must
+    To use an objarray class you must
     <ll>
     <li>#include "dynarray.h"
     <ll>
     <li>#include "dynarray.h"
-    <li>DECLARE_LIST(element_type, list_class_name)
-    <li>#include "listimpl.cpp"
-    <li>DEFINE_LIST(list_class_name)   // same as above!
+    <li>WX_DECLARE_OBJARRAY(element_type, list_class_name)
+    <li>#include "arrimpl.cpp"
+    <li>WX_DEFINE_OBJARRAY(list_class_name)   // same as above!
     </ll>
     <BR><BR>
     </ll>
     <BR><BR>
-    This is necessary because at the moment of DEFINE_LIST class element_type
-    must be fully defined (i.e. forward declaration is not enough), while
-    DECLARE_LIST may be done anywhere. The separation of two allows to break
-    cicrcular dependencies with classes which have member variables of list
-    type.
+    This is necessary because at the moment of DEFINE_OBJARRAY class
+    element_type must be fully defined (i.e. forward declaration is not
+    enough), while WX_DECLARE_OBJARRAY may be done anywhere. The separation of
+    two allows to break cicrcular dependencies with classes which have member
+    variables of objarray type.
 
 
-    @memo define (must include listimpl.cpp!) list class 'name'
+    @memo define (must include arrimpl.cpp!) objarray class 'name'
    */
    */
-#define WX_DEFINE_LIST(name)       "don't forget to include listimpl.cpp!"
+#define WX_DEFINE_OBJARRAY(name)       "don't forget to include arrimpl.cpp!"
 //@}
 
 //@}
 
+// these macros do the same thing as the WX_XXX ones above, but should be used
+// inside the library for user visible classes because otherwise they wouldn't
+// be visible from outside (when using wxWindows as DLL under Windows)
+#define WX_DEFINE_EXPORTED_ARRAY(T, name)               \
+    typedef T _A##name;                                 \
+    _WX_DEFINE_ARRAY(_A##name, name, class WXDLLEXPORT)
+
+#define WX_DEFINE_SORTED_EXPORTED_ARRAY(T, name)        \
+    typedef T _A##name;                                 \
+    _WX_DEFINE_SORTED_ARRAY(_A##name, name, class WXDLLEXPORT)
+
+#define WX_DECLARE_EXPORTED_OBJARRAY(T, name)           \
+    typedef T _L##name;                                 \
+    _WX_DECLARE_OBJARRAY(_L##name, name, class WXDLLEXPORT)
+
 // ----------------------------------------------------------------------------
 /** @name Some commonly used predefined arrays */
 // ----------------------------------------------------------------------------
 /** @name Some commonly used predefined arrays */
-// # overhead if not used?
 // ----------------------------------------------------------------------------
 
 //@{
   /** @name ArrayInt */
 // ----------------------------------------------------------------------------
 
 //@{
   /** @name ArrayInt */
-WX_DEFINE_ARRAY(int,    wxArrayInt);
+WX_DEFINE_EXPORTED_ARRAY(int, wxArrayInt);
   /** @name ArrayLong */
   /** @name ArrayLong */
-WX_DEFINE_ARRAY(long,   wxArrayLong);
+WX_DEFINE_EXPORTED_ARRAY(long, wxArrayLong);
   /** @name ArrayPtrVoid */
   /** @name ArrayPtrVoid */
-WX_DEFINE_ARRAY(void *, wxArrayPtrVoid);
+WX_DEFINE_EXPORTED_ARRAY(void *, wxArrayPtrVoid);
 //@}
 
 //@}
 
 //@}
 
 //@}
 
+// -----------------------------------------------------------------------------
+// convinience macros
+// -----------------------------------------------------------------------------
+
+// append all element of one array to another one
+#define WX_APPEND_ARRAY(array, other)                                         \
+    {                                                                         \
+        size_t count = other.Count();                                         \
+        for ( size_t n = 0; n < count; n++ )                                  \
+        {                                                                     \
+            array.Add(other[n]);                                              \
+        }                                                                     \
+    }
+
+// delete all array elements
+//
+// NB: the class declaration of the array elements must be visible from the
+//     place where you use this macro, otherwise the proper destructor may not
+//     be called (a decent compiler should give a warning about it, but don't
+//     count on it)!
+#define WX_CLEAR_ARRAY(array)                                                 \
+    {                                                                         \
+        size_t count = array.Count();                                         \
+        for ( size_t n = 0; n < count; n++ )                                  \
+        {                                                                     \
+            delete array[n];                                                  \
+        }                                                                     \
+                                                                              \
+        array.Empty();                                                        \
+    }
+
 #endif // _DYNARRAY_H
 
 #endif // _DYNARRAY_H