include/wx/arrimpl.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/arrimpl.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
  25 #define _WX_ERROR_REMOVE2(x)     wxT("bad index in ") wxT(#x) wxT("::RemoveAt()")
  26
  27 // macro implements remaining (not inline) methods of template list
  28 // (it's private to this file)
  29 #undef  _DEFINE_OBJARRAY
  30 #define _DEFINE_OBJARRAY(T, name)                                             \
  31 name::~name()                                                                 \
  32 {                                                                             \
  33   Empty();                                                                    \
  34 }                                                                             \
  35                                                                               \
  36 void name::DoCopy(const name& src)                                            \
  37 {                                                                             \
  38   for ( size_t ui = 0; ui < src.Count(); ui++ )                               \
  39     Add(src[ui]);                                                             \
  40 }                                                                             \
  41                                                                               \
  42 name& name::operator=(const name& src)                                        \
  43 {                                                                             \
  44   Empty();                                                                    \
  45   DoCopy(src);                                                                \
  46                                                                               \
  47   return *this;                                                               \
  48 }                                                                             \
  49                                                                               \
  50 name::name(const name& src) : wxArrayPtrVoid()                                \
  51 {                                                                             \
  52   DoCopy(src);                                                                \
  53 }                                                                             \
  54                                                                               \
  55 void name::DoEmpty()                                                          \
  56 {                                                                             \
  57   for ( size_t ui = 0; ui < Count(); ui++ )                                   \
  58     delete (T*)wxBaseArrayPtrVoid::Item(ui);                                  \
  59 }                                                                             \
  60                                                                               \
  61 void name::RemoveAt(size_t uiIndex, size_t nRemove)                           \
  62 {                                                                             \
  63   wxCHECK_RET( uiIndex < Count(), _WX_ERROR_REMOVE2(name) );                  \
  64                                                                               \
  65   for (size_t i = 0; i < nRemove; i++ )                                       \
  66     delete (T*)wxBaseArrayPtrVoid::Item(uiIndex + i);                         \
  67                                                                               \
  68   wxBaseArrayPtrVoid::RemoveAt(uiIndex, nRemove);                             \
  69 }                                                                             \
  70                                                                               \
  71 void name::Add(const T& item, size_t nInsert)                                 \
  72 {                                                                             \
  73   if (nInsert == 0)                                                           \
  74     return;                                                                   \
  75   T* pItem = new T(item);                                                     \
  76   size_t nOldSize = GetCount();                                               \
  77   if ( pItem != NULL )                                                        \
  78     wxBaseArrayPtrVoid::Add(pItem, nInsert);                                  \
  79   for (size_t i = 1; i < nInsert; i++)                                        \
  80     wxBaseArrayPtrVoid::Item(nOldSize + i) = new T(item);                     \
  81 }                                                                             \
  82                                                                               \
  83 void name::Insert(const T& item, size_t uiIndex, size_t nInsert)              \
  84 {                                                                             \
  85   if (nInsert == 0)                                                           \
  86     return;                                                                   \
  87   T* pItem = new T(item);                                                     \
  88   if ( pItem != NULL )                                                        \
  89     wxBaseArrayPtrVoid::Insert(pItem, uiIndex, nInsert);                      \
  90   for (size_t i = 1; i < nInsert; i++)                                        \
  91     wxBaseArrayPtrVoid::Item(uiIndex + i) = new T(item);                      \
  92 }                                                                             \
  93                                                                               \
  94 int name::Index(const T& Item, bool bFromEnd) const                           \
  95 {                                                                             \
  96   if ( bFromEnd ) {                                                           \
  97     if ( Count() > 0 ) {                                                      \
  98       size_t ui = Count() - 1;                                                \
  99       do {                                                                    \
 100         if ( (T*)wxBaseArrayPtrVoid::Item(ui) == &Item )                      \
 101           return ui;                                                          \
 102         ui--;                                                                 \
 103       }                                                                       \
 104       while ( ui != 0 );                                                      \
 105     }                                                                         \
 106   }                                                                           \
 107   else {                                                                      \
 108     for( size_t ui = 0; ui < Count(); ui++ ) {                                \
 109       if( (T*)wxBaseArrayPtrVoid::Item(ui) == &Item )                         \
 110         return ui;                                                            \
 111     }                                                                         \
 112   }                                                                           \
 113                                                                               \
 114   return wxNOT_FOUND;                                                         \
 115 }
 116
 117 // redefine the macro so that now it will generate the class implementation
 118 // old value would provoke a compile-time error if this file is not included
 119 #undef  WX_DEFINE_OBJARRAY
 120 #define WX_DEFINE_OBJARRAY(name) _DEFINE_OBJARRAY(_wxObjArray##name, name)