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[wxWidgets.git] / src / common / dynarray.cpp
index 25a7b4a31d0d868f45b3aa2d98e342733c21644d..76cff5323e213e8a9ddbb5eb1eca1249cb10ab44 100644 (file)
@@ -1,41 +1,38 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        dynarray.cpp
+// Name:        src/common/dynarray.cpp
 // Purpose:     implementation of wxBaseArray class
 // Author:      Vadim Zeitlin
 // Modified by:
 // Created:     12.09.97
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// Licence:     wxWindows license
+// Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
 // headers
 // ============================================================================
 
-#ifdef __GNUG__
-#pragma implementation "dynarray.h"
-#endif
-
+// For compilers that support precompilation, includes "wx.h".
 #include  "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-  #pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#include "wx/dynarray.h"
-#include "wx/intl.h"
+#ifndef WX_PRECOMP
+    #include "wx/dynarray.h"
+    #include "wx/intl.h"
+#endif //WX_PRECOMP
 
 #include <stdlib.h>
 #include <string.h> // for memmove
 
-#ifndef max
-  #define max(a, b)   (((a) > (b)) ? (a) : (b))
-#endif
+#if !wxUSE_STL
 
 // we cast the value to long from which we cast it to void * in IndexForInsert:
 // this can't work if the pointers are not big enough
-wxCOMPILE_TIME_ASSERT( sizeof(long) <= sizeof(void *),
+wxCOMPILE_TIME_ASSERT( sizeof(wxUIntPtr) <= sizeof(void *),
                        wxArraySizeOfPtrLessSizeOfLong ); // < 32 symbols
 
 // ============================================================================
@@ -54,6 +51,37 @@ wxCOMPILE_TIME_ASSERT( sizeof(long) <= sizeof(void *),
 // ----------------------------------------------------------------------------
 
 #define _WX_DEFINE_BASEARRAY(T, name)                                       \
+/* searches the array for an item (forward or backwards) */                 \
+int name::Index(T lItem, bool bFromEnd) const                               \
+{                                                                           \
+  if ( bFromEnd ) {                                                         \
+    if ( size() > 0 ) {                                                     \
+      size_t n = size();                                                    \
+      do {                                                                  \
+        if ( (*this)[--n] == lItem )                                        \
+          return n;                                                         \
+      }                                                                     \
+      while ( n != 0 );                                                     \
+    }                                                                       \
+  }                                                                         \
+  else {                                                                    \
+    for( size_t n = 0; n < size(); n++ ) {                                  \
+      if( (*this)[n] == lItem )                                             \
+        return n;                                                           \
+    }                                                                       \
+  }                                                                         \
+                                                                            \
+  return wxNOT_FOUND;                                                       \
+}                                                                           \
+                                                                            \
+/* add item assuming the array is sorted with fnCompare function */         \
+size_t name::Add(T lItem, CMPFUNC fnCompare)                                \
+{                                                                           \
+  size_t idx = IndexForInsert(lItem, fnCompare);                            \
+  Insert(lItem, idx);                                                       \
+  return idx;                                                               \
+}                                                                           \
+                                                                            \
 /* ctor */                                                                  \
 name::name()                                                                \
 {                                                                           \
@@ -106,17 +134,37 @@ name& name::operator=(const name& src)                                      \
   return *this;                                                             \
 }                                                                           \
                                                                             \
+/* allocate new buffer of the given size and move our data to it */         \
+bool name::Realloc(size_t nSize)                                            \
+{                                                                           \
+  T *pNew = new T[nSize];                                                   \
+  /* only grow if allocation succeeded */                                   \
+  if ( !pNew )                                                              \
+      return false;                                                         \
+                                                                            \
+  m_nSize = nSize;                                                          \
+  /* copy data to new location */                                           \
+  memcpy(pNew, m_pItems, m_nCount*sizeof(T));                               \
+  delete [] m_pItems;                                                       \
+  m_pItems = pNew;                                                          \
+                                                                            \
+  return true;                                                              \
+}                                                                           \
+                                                                            \
 /* grow the array */                                                        \
 void name::Grow(size_t nIncrement)                                          \
 {                                                                           \
   /* only do it if no more place */                                         \
-  if( m_nCount == m_nSize ) {                                               \
+  if( (m_nCount == m_nSize) || ((m_nSize - m_nCount) < nIncrement) ) {      \
     if( m_nSize == 0 ) {                                                    \
-        /* was empty, alloc some memory */                                  \
-      m_pItems = new T[WX_ARRAY_DEFAULT_INITIAL_SIZE];                      \
+      /* was empty, determine initial size */                               \
+      size_t size = WX_ARRAY_DEFAULT_INITIAL_SIZE;                          \
+      if (size < nIncrement) size = nIncrement;                             \
+      /* allocate some memory */                                            \
+      m_pItems = new T[size];                                               \
       /* only grow if allocation succeeded */                               \
       if ( m_pItems ) {                                                     \
-          m_nSize = WX_ARRAY_DEFAULT_INITIAL_SIZE;                          \
+          m_nSize = size;                                                   \
       }                                                                     \
     }                                                                       \
     else                                                                    \
@@ -128,19 +176,34 @@ void name::Grow(size_t nIncrement)                                          \
         ndefIncrement = ARRAY_MAXSIZE_INCREMENT;                            \
       if ( nIncrement < ndefIncrement )                                     \
         nIncrement = ndefIncrement;                                         \
-      T *pNew = new T[m_nSize + nIncrement];                                \
-      /* only grow if allocation succeeded */                               \
-      if ( pNew ) {                                                         \
-          m_nSize += nIncrement;                                            \
-          /* copy data to new location */                                   \
-          memcpy(pNew, m_pItems, m_nCount*sizeof(T));                       \
-          delete [] m_pItems;                                               \
-          m_pItems = pNew;                                                  \
-      }                                                                     \
+      Realloc(m_nSize + nIncrement);                                        \
     }                                                                       \
   }                                                                         \
 }                                                                           \
                                                                             \
+/* make sure that the array has at least count elements */                  \
+void name::SetCount(size_t count, T defval)                                 \
+{                                                                           \
+    if ( m_nSize < count )                                                  \
+    {                                                                       \
+        /* need to realloc memory: don't overallocate it here as if */      \
+        /* SetCount() is called, it probably means that the caller  */      \
+        /* knows in advance how many elements there will be in the  */      \
+        /* array and so it won't be necessary to realloc it later   */      \
+        if ( !Realloc(count) )                                              \
+        {                                                                   \
+            /* out of memory -- what can we do? */                          \
+            return;                                                         \
+        }                                                                   \
+    }                                                                       \
+                                                                            \
+    /* add new elements if we extend the array */                           \
+    while ( m_nCount < count )                                              \
+    {                                                                       \
+        m_pItems[m_nCount++] = defval;                                      \
+    }                                                                       \
+}                                                                           \
+                                                                            \
 /* dtor */                                                                  \
 name::~name()                                                               \
 {                                                                           \
@@ -156,23 +219,6 @@ void name::Clear()                                                          \
   wxDELETEA(m_pItems);                                                      \
 }                                                                           \
                                                                             \
-/* pre-allocates memory (frees the previous data!) */                       \
-void name::Alloc(size_t nSize)                                              \
-{                                                                           \
-  /* only if old buffer was not big enough */                               \
-  if ( nSize > m_nSize ) {                                                  \
-    wxDELETEA(m_pItems);                                                    \
-    m_nSize  = 0;                                                           \
-    m_pItems = new T[nSize];                                                \
-    /* only alloc if allocation succeeded */                                \
-    if ( m_pItems ) {                                                       \
-        m_nSize  = nSize;                                                   \
-    }                                                                       \
-  }                                                                         \
-                                                                            \
-  m_nCount = 0;                                                             \
-}                                                                           \
-                                                                            \
 /* minimizes the memory usage by freeing unused memory */                   \
 void name::Shrink()                                                         \
 {                                                                           \
@@ -186,31 +232,40 @@ void name::Shrink()                                                         \
         memcpy(pNew, m_pItems, m_nCount*sizeof(T));                         \
         delete [] m_pItems;                                                 \
         m_pItems = pNew;                                                    \
+                                                                            \
+        /* update the size of the new block */                              \
+        m_nSize = m_nCount;                                                 \
     }                                                                       \
+    /* else: don't do anything, better keep old memory block! */            \
   }                                                                         \
 }                                                                           \
                                                                             \
-/* searches the array for an item (forward or backwards) */                 \
-int name::Index(T lItem, bool bFromEnd) const                               \
+/* add item at the end */                                                   \
+void name::Add(T lItem, size_t nInsert)                                     \
 {                                                                           \
-  if ( bFromEnd ) {                                                         \
-    if ( m_nCount > 0 ) {                                                   \
-      size_t n = m_nCount;                                                  \
-      do {                                                                  \
-        if ( m_pItems[--n] == lItem )                                       \
-          return n;                                                         \
-      }                                                                     \
-      while ( n != 0 );                                                     \
-    }                                                                       \
-  }                                                                         \
-  else {                                                                    \
-    for( size_t n = 0; n < m_nCount; n++ ) {                                \
-      if( m_pItems[n] == lItem )                                            \
-        return n;                                                           \
-    }                                                                       \
-  }                                                                         \
+  if (nInsert == 0)                                                         \
+      return;                                                               \
+  Grow(nInsert);                                                            \
+  for (size_t i = 0; i < nInsert; i++)                                      \
+      m_pItems[m_nCount++] = lItem;                                         \
+}                                                                           \
                                                                             \
-  return wxNOT_FOUND;                                                       \
+/* add item at the given position */                                        \
+void name::Insert(T lItem, size_t nIndex, size_t nInsert)                   \
+{                                                                           \
+  wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArray::Insert") );   \
+  wxCHECK_RET( m_nCount <= m_nCount + nInsert,                              \
+               wxT("array size overflow in wxArray::Insert") );             \
+                                                                            \
+  if (nInsert == 0)                                                         \
+      return;                                                               \
+  Grow(nInsert);                                                            \
+                                                                            \
+  memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex],                   \
+          (m_nCount - nIndex)*sizeof(T));                                   \
+  for (size_t i = 0; i < nInsert; i++)                                      \
+      m_pItems[nIndex + i] = lItem;                                         \
+  m_nCount += nInsert;                                                      \
 }                                                                           \
                                                                             \
 /* search for a place to insert item into sorted array (binary search) */   \
@@ -224,8 +279,8 @@ size_t name::IndexForInsert(T lItem, CMPFUNC fnCompare) const               \
   while ( lo < hi ) {                                                       \
     i = (lo + hi)/2;                                                        \
                                                                             \
-    res = (*fnCompare)((const void *)(long)lItem,                           \
-                       (const void *)(long)(m_pItems[i]));                  \
+    res = (*fnCompare)((const void *)(wxUIntPtr)lItem,                      \
+                       (const void *)(wxUIntPtr)(m_pItems[i]));             \
     if ( res < 0 )                                                          \
       hi = i;                                                               \
     else if ( res > 0 )                                                     \
@@ -244,37 +299,11 @@ int name::Index(T lItem, CMPFUNC fnCompare) const                           \
 {                                                                           \
     size_t n = IndexForInsert(lItem, fnCompare);                            \
                                                                             \
-    return n < m_nCount && m_pItems[n] == lItem ? (int)n : wxNOT_FOUND;     \
-}                                                                           \
-                                                                            \
-/* add item at the end */                                                   \
-void name::Add(T lItem, size_t nInsert)                                     \
-{                                                                           \
-  Grow(nInsert);                                                            \
-  for (size_t i = 0; i < nInsert; i++)                                      \
-      m_pItems[m_nCount++] = lItem;                                         \
-}                                                                           \
-                                                                            \
-/* add item assuming the array is sorted with fnCompare function */         \
-void name::Add(T lItem, CMPFUNC fnCompare)                                  \
-{                                                                           \
-  Insert(lItem, IndexForInsert(lItem, fnCompare));                          \
-}                                                                           \
-                                                                            \
-/* add item at the given position */                                        \
-void name::Insert(T lItem, size_t nIndex, size_t nInsert)                   \
-{                                                                           \
-  wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArray::Insert") );   \
-  wxCHECK_RET( m_nCount <= m_nCount + nInsert,                              \
-               wxT("array size overflow in wxArray::Insert") );             \
-                                                                            \
-  Grow(nInsert);                                                            \
-                                                                            \
-  memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex],                   \
-          (m_nCount - nIndex)*sizeof(T));                                   \
-  for (size_t i = 0; i < nInsert; i++)                                      \
-      m_pItems[nIndex + i] = lItem;                                         \
-  m_nCount += nInsert;                                                      \
+    return (n >= m_nCount ||                                                \
+           (*fnCompare)((const void *)(wxUIntPtr)lItem,                     \
+                        ((const void *)(wxUIntPtr)m_pItems[n])))            \
+                        ? wxNOT_FOUND                                       \
+                        : (int)n;                                           \
 }                                                                           \
                                                                             \
 /* removes item from array (by index) */                                    \
@@ -304,11 +333,174 @@ void name::Remove(T lItem)                                                  \
 void name::Sort(CMPFUNC fCmp)                                               \
 {                                                                           \
   qsort(m_pItems, m_nCount, sizeof(T), fCmp);                               \
+}                                                                           \
+                                                                            \
+void name::assign(const_iterator first, const_iterator last)                \
+{                                                                           \
+  clear();                                                                  \
+  reserve(last - first);                                                    \
+  for(; first != last; ++first)                                             \
+    push_back(*first);                                                      \
+}                                                                           \
+                                                                            \
+void name::assign(size_type n, const_reference v)                           \
+{                                                                           \
+  clear();                                                                  \
+  reserve(n);                                                               \
+  for( size_type i = 0; i < n; ++i )                                        \
+    push_back(v);                                                           \
+}                                                                           \
+                                                                            \
+void name::insert(iterator it, const_iterator first, const_iterator last)   \
+{                                                                           \
+  size_t nInsert = last - first, nIndex = it - begin();                     \
+  if (nInsert == 0)                                                         \
+      return;                                                               \
+  Grow(nInsert);                                                            \
+                                                                            \
+  memmove(&m_pItems[nIndex + nInsert], &m_pItems[nIndex],                   \
+          (m_nCount - nIndex)*sizeof(T));                                   \
+  for (size_t i = 0; i < nInsert; ++i, ++it, ++first)                       \
+      *it = *first;                                                         \
+  m_nCount += nInsert;                                                      \
 }
 
+#ifdef __INTELC__
+    #pragma warning(push)
+    #pragma warning(disable: 1684)
+    #pragma warning(disable: 1572)
+#endif
+
 _WX_DEFINE_BASEARRAY(const void *, wxBaseArrayPtrVoid)
+_WX_DEFINE_BASEARRAY(char,         wxBaseArrayChar)
 _WX_DEFINE_BASEARRAY(short,        wxBaseArrayShort)
 _WX_DEFINE_BASEARRAY(int,          wxBaseArrayInt)
 _WX_DEFINE_BASEARRAY(long,         wxBaseArrayLong)
-//_WX_DEFINE_BASEARRAY(double,       wxBaseArrayDouble)
+_WX_DEFINE_BASEARRAY(size_t,       wxBaseArraySizeT)
+_WX_DEFINE_BASEARRAY(double,       wxBaseArrayDouble)
+
+#ifdef __INTELC__
+    #pragma warning(pop)
+#endif
+
+#else // wxUSE_STL
+
+#include "wx/arrstr.h"
+
+#include "wx/beforestd.h"
+#include <functional>
+#include "wx/afterstd.h"
+
+// some compilers (Sun CC being the only known example) distinguish between
+// extern "C" functions and the functions with C++ linkage and ptr_fun and
+// wxStringCompareLess can't take wxStrcmp/wxStricmp directly as arguments in
+// this case, we need the wrappers below to make this work
+struct wxStringCmp
+{
+    typedef wxString first_argument_type;
+    typedef wxString second_argument_type;
+    typedef int result_type;
+
+    int operator()(const wxString& s1, const wxString& s2) const
+    {
+        return s1.compare(s2);
+    }
+};
+
+struct wxStringCmpNoCase
+{
+    typedef wxString first_argument_type;
+    typedef wxString second_argument_type;
+    typedef int result_type;
+
+    int operator()(const wxString& s1, const wxString& s2) const
+    {
+        return s1.CmpNoCase(s2);
+    }
+};
+
+int wxArrayString::Index(const wxString& str, bool bCase, bool WXUNUSED(bFromEnd)) const
+{
+    wxArrayString::const_iterator it;
+
+    if (bCase)
+    {
+        it = std::find_if(begin(), end(),
+                          std::not1(
+                              std::bind2nd(
+                                  wxStringCmp(), str)));
+    }
+    else // !bCase
+    {
+        it = std::find_if(begin(), end(),
+                          std::not1(
+                              std::bind2nd(
+                                  wxStringCmpNoCase(), str)));
+    }
+
+    return it == end() ? wxNOT_FOUND : it - begin();
+}
+
+template<class F>
+class wxStringCompareLess
+{
+public:
+    wxStringCompareLess(F f) : m_f(f) { }
+    bool operator()(const wxString& s1, const wxString& s2)
+        { return m_f(s1, s2) < 0; }
+private:
+    F m_f;
+};
+
+template<class F>
+wxStringCompareLess<F> wxStringCompare(F f)
+{
+    return wxStringCompareLess<F>(f);
+}
+
+void wxArrayString::Sort(CompareFunction function)
+{
+    std::sort(begin(), end(), wxStringCompare(function));
+}
+
+void wxArrayString::Sort(bool reverseOrder)
+{
+    if (reverseOrder)
+    {
+        std::sort(begin(), end(), std::greater<wxString>());
+    }
+    else
+    {
+        std::sort(begin(), end());
+    }
+}
+
+int wxSortedArrayString::Index(const wxString& str, bool bCase, bool WXUNUSED(bFromEnd)) const
+{
+    wxSortedArrayString::const_iterator it;
+
+    if (bCase)
+        it = std::lower_bound(begin(), end(), str,
+                              wxStringCompare(wxStringCmp()));
+    else
+        it = std::lower_bound(begin(), end(), str,
+                              wxStringCompare(wxStringCmpNoCase()));
+
+    if (it == end())
+        return wxNOT_FOUND;
+
+    if (bCase)
+    {
+        if (str.Cmp(*it) != 0)
+            return wxNOT_FOUND;
+    }
+    else
+    {
+        if (str.CmpNoCase(*it) != 0)
+            return wxNOT_FOUND;
+    }
+
+    return it - begin();
+}
 
+#endif // !wxUSE_STL/wxUSE_STL