X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5a1cad6ea487130bc074d858368cd93241ae2cf2..55129143a164e44f832c7438c79310ebe26675d5:/src/common/dynarray.cpp diff --git a/src/common/dynarray.cpp b/src/common/dynarray.cpp index e8efb32ecb..752effe3c2 100644 --- a/src/common/dynarray.cpp +++ b/src/common/dynarray.cpp @@ -1,37 +1,39 @@ /////////////////////////////////////////////////////////////////////////////// -// 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 -// 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 #include // 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(wxUIntPtr) <= sizeof(void *), + wxArraySizeOfPtrLessSizeOfLong ); // < 32 symbols // ============================================================================ // constants @@ -48,13 +50,44 @@ // wxBaseArray - dynamic array of 'T's // ---------------------------------------------------------------------------- -#define _DECLARE_BASEARRAY(T, name) \ +#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() \ { \ m_nSize = \ m_nCount = 0; \ - m_pItems = (T *)NULL; \ + m_pItems = NULL; \ } \ \ /* copy ctor */ \ @@ -74,7 +107,7 @@ name::name(const name& src) \ } \ } \ else \ - m_pItems = (T *) NULL; \ + m_pItems = NULL; \ } \ \ /* assignment operator */ \ @@ -96,44 +129,81 @@ name& name::operator=(const name& src) \ } \ } \ else \ - m_pItems = (T *) NULL; \ + m_pItems = NULL; \ \ 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() \ +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 \ { \ - /* add 50% but not too much */ \ - size_t nIncrement = m_nSize < WX_ARRAY_DEFAULT_INITIAL_SIZE \ - ? WX_ARRAY_DEFAULT_INITIAL_SIZE : m_nSize >> 1; \ - if ( nIncrement > ARRAY_MAXSIZE_INCREMENT ) \ - nIncrement = ARRAY_MAXSIZE_INCREMENT; \ - 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; \ - } \ + /* add at least 50% but not too much */ \ + size_t ndefIncrement = m_nSize < WX_ARRAY_DEFAULT_INITIAL_SIZE \ + ? WX_ARRAY_DEFAULT_INITIAL_SIZE : m_nSize >> 1; \ + if ( ndefIncrement > ARRAY_MAXSIZE_INCREMENT ) \ + ndefIncrement = ARRAY_MAXSIZE_INCREMENT; \ + if ( nIncrement < ndefIncrement ) \ + nIncrement = ndefIncrement; \ + 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() \ { \ @@ -149,23 +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() \ { \ @@ -179,31 +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) */ \ @@ -217,7 +279,8 @@ size_t name::IndexForInsert(T lItem, CMPFUNC fnCompare) const \ while ( lo < hi ) { \ i = (lo + hi)/2; \ \ - res = (*fnCompare)((const void *)&lItem, (const void *)&(m_pItems[i])); \ + res = (*fnCompare)((const void *)(wxUIntPtr)lItem, \ + (const void *)(wxUIntPtr)(m_pItems[i])); \ if ( res < 0 ) \ hi = i; \ else if ( res > 0 ) \ @@ -236,43 +299,23 @@ 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) \ -{ \ - Grow(); \ - 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) \ -{ \ - wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArray::Insert") ); \ - \ - Grow(); \ - \ - memmove(&m_pItems[nIndex + 1], &m_pItems[nIndex], \ - (m_nCount - nIndex)*sizeof(T)); \ - m_pItems[nIndex] = lItem; \ - m_nCount++; \ + 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) */ \ -void name::RemoveAt(size_t nIndex) \ +void name::RemoveAt(size_t nIndex, size_t nRemove) \ { \ - wxCHECK_RET( nIndex <= m_nCount, wxT("bad index in wxArray::RemoveAt") ); \ + wxCHECK_RET( nIndex < m_nCount, wxT("bad index in wxArray::RemoveAt") ); \ + wxCHECK_RET( nIndex + nRemove <= m_nCount, \ + wxT("removing too many elements in wxArray::RemoveAt") ); \ \ - memmove(&m_pItems[nIndex], &m_pItems[nIndex + 1], \ - (m_nCount - nIndex - 1)*sizeof(T)); \ - m_nCount--; \ + memmove(&m_pItems[nIndex], &m_pItems[nIndex + nRemove], \ + (m_nCount - nIndex - nRemove)*sizeof(T)); \ + m_nCount -= nRemove; \ } \ \ /* removes item from array (by value) */ \ @@ -290,11 +333,162 @@ 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(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 +#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(); } -_DECLARE_BASEARRAY(void *, wxBaseArrayPtrVoid) -_DECLARE_BASEARRAY(short, wxBaseArrayShort) -_DECLARE_BASEARRAY(int, wxBaseArrayInt) -_DECLARE_BASEARRAY(long, wxBaseArrayLong) -_DECLARE_BASEARRAY(double, wxBaseArrayDouble) +template +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 +wxStringCompareLess wxStringCompare(F f) +{ + return wxStringCompareLess(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()); + } + else + { + std::sort(begin(), end()); + } +} + +int wxSortedArrayString::Index(const wxString& str, + bool WXUNUSED_UNLESS_DEBUG(bCase), + bool WXUNUSED_UNLESS_DEBUG(bFromEnd)) const +{ + wxASSERT_MSG( bCase && !bFromEnd, + "search parameters ignored for sorted array" ); + + wxSortedArrayString::const_iterator + it = std::lower_bound(begin(), end(), str, wxStringCompare(wxStringCmp())); + + if ( it == end() || str.Cmp(*it) != 0 ) + return wxNOT_FOUND; + + return it - begin(); +} +#endif // !wxUSE_STL/wxUSE_STL