include/wx/arrimpl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        listimpl.cpp
   3 // Purpose:     helper file for implementation of dynamic lists
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     16.10.97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1997 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 /*****************************************************************************
  13  * Purpose: implements methods of "template" class declared in               *
  14  *          DECLARE_OBJARRAY macro and which couldn't be implemented inline  *
  15  *          (because they need the full definition of type T in scope)       *
  16  *                                                                           *
  17  * Usage:   1) #include dynarray.h                                           *
  18  *          2) WX_DECLARE_OBJARRAY                                           *
  19  *          3) #include arrimpl.cpp                                          *
  20  *          4) WX_DEFINE_OBJARRAY                                            *
  21  *****************************************************************************/
  22
  23 // needed to resolve the conflict between global T and macro parameter T
  24 #define _WX_ERROR_REMOVE2(x)     T("bad index in " #x "::Remove()")
  25
  26 // macro implements remaining (not inline) methods of template list
  27 // (it's private to this file)
  28 #undef  _DEFINE_OBJARRAY
  29 #define _DEFINE_OBJARRAY(T, name)                                             \
  30 name::~name()                                                                 \
  31 {                                                                             \
  32   Empty();                                                                    \
  33 }                                                                             \
  34                                                                               \
  35 void name::DoCopy(const name& src)                                            \
  36 {                                                                             \
  37   for ( size_t ui = 0; ui < src.Count(); ui++ )                               \
  38     Add(src[ui]);                                                             \
  39 }                                                                             \
  40                                                                               \
  41 name& name::operator=(const name& src)                                        \
  42 {                                                                             \
  43   Empty();                                                                    \
  44   DoCopy(src);                                                                \
  45                                                                               \
  46   return *this;                                                               \
  47 }                                                                             \
  48                                                                               \
  49 name::name(const name& src)                                                   \
  50 {                                                                             \
  51   DoCopy(src);                                                                \
  52 }                                                                             \
  53                                                                               \
  54 void name::Empty()                                                            \
  55 {                                                                             \
  56   for ( size_t ui = 0; ui < Count(); ui++ )                                   \
  57     delete (T*)wxBaseArray::Item(ui);                                         \
  58                                                                               \
  59   wxBaseArray::Clear();                                                       \
  60 }                                                                             \
  61                                                                               \
  62 void name::Remove(size_t uiIndex)                                             \
  63 {                                                                             \
  64   wxCHECK_RET( uiIndex < Count(), _WX_ERROR_REMOVE2(name) );                  \
  65                                                                               \
  66   delete (T*)wxBaseArray::Item(uiIndex);                                      \
  67                                                                               \
  68   wxBaseArray::Remove(uiIndex);                                               \
  69 }                                                                             \
  70                                                                               \
  71 void name::Add(const T& item)                                                 \
  72 {                                                                             \
  73   T* pItem = new T(item);                                                     \
  74   if ( pItem != NULL )                                                        \
  75     Add(pItem);                                                               \
  76 }                                                                             \
  77                                                                               \
  78 void name::Insert(const T& item, size_t uiIndex)                              \
  79 {                                                                             \
  80   T* pItem = new T(item);                                                     \
  81   if ( pItem != NULL )                                                        \
  82     Insert(pItem, uiIndex);                                                   \
  83 }                                                                             \
  84                                                                               \
  85 int name::Index(const T& Item, bool bFromEnd) const                           \
  86 {                                                                             \
  87   if ( bFromEnd ) {                                                           \
  88     if ( Count() > 0 ) {                                                      \
  89       size_t ui = Count() - 1;                                                \
  90       do {                                                                    \
  91         if ( (T*)wxBaseArray::Item(ui) == &Item )                             \
  92           return ui;                                                          \
  93         ui--;                                                                 \
  94       }                                                                       \
  95       while ( ui != 0 );                                                      \
  96     }                                                                         \
  97   }                                                                           \
  98   else {                                                                      \
  99     for( size_t ui = 0; ui < Count(); ui++ ) {                                \
 100       if( (T*)wxBaseArray::Item(ui) == &Item )                                \
 101         return ui;                                                            \
 102     }                                                                         \
 103   }                                                                           \
 104                                                                               \
 105   return wxNOT_FOUND;                                                         \
 106 }
 107
 108 // redefine the macro so that now it will generate the class implementation
 109 // old value would provoke a compile-time error if this file is not included
 110 #undef  WX_DEFINE_OBJARRAY
 111 #define WX_DEFINE_OBJARRAY(name) _DEFINE_OBJARRAY(_L##name, name)