X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/bc7665d447d8d8958f57c3384fc53c94d46140d5..c331ac2ed75ba5c435d745e9282c27a339da4f18:/include/wx/dynarray.h?ds=sidebyside diff --git a/include/wx/dynarray.h b/include/wx/dynarray.h index c7d94ac6d4..f70cc6c2f3 100644 --- a/include/wx/dynarray.h +++ b/include/wx/dynarray.h @@ -2,7 +2,7 @@ // Name: dynarray.h // Purpose: auto-resizable (i.e. dynamic) array support // Author: Vadim Zeitlin -// Modified by: +// Modified by: // Created: 12.09.97 // RCS-ID: $Id$ // Copyright: (c) 1998 Vadim Zeitlin @@ -17,54 +17,66 @@ #endif #include "wx/defs.h" -#include "wx/utils.h" -/** @name Dynamic arrays and lists - @memo Arrays which grow on demand and do range checking (only in debug) - */ -//@{ +/* + This header defines the dynamic arrays and object arrays (i.e. arrays which + own their elements). Dynamic means that the arrays grow automatically as + needed. + + These macros are ugly (especially if you look in the sources ;-), but they + allow us to define "template" classes without actually using templates and so + this works with all compilers (and may be also much faster to compile even + with a compiler which does support templates). The arrays defined with these + macros are type-safe. + + Range checking is performed in debug build for both arrays and objarrays but + not in release build - so using an invalid index will just lead to a crash + then. + + Note about memory usage: arrays never shrink automatically (although you may + use Shrink() function explicitly), they only grow, so loading 10 millions in + an array only to delete them 2 lines below might be a bad idea if the array + object is not going to be destroyed soon. However, as it does free memory + when destroyed, it is ok if the array is a local variable. + */ // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- -/** - the initial size by which an array/list grows when an element is added - default value avoids allocate one or two bytes when the array is created - which is rather inefficient +/* + 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 */ -#define WX_ARRAY_DEFAULT_INITIAL_SIZE (16) +#define WX_ARRAY_DEFAULT_INITIAL_SIZE (16) // ---------------------------------------------------------------------------- // types // ---------------------------------------------------------------------------- -/** - callback compare function for quick sort - must return -1, 0 or +1 if pItem1 <, = or > pItem2 +/* + Callback compare function for quick sort. + + It must return negative value, 0 or positive value if the first item is + less than, equal to or greater than the second one. */ - -#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); +extern "C" +{ +typedef int (wxCMPFUNC_CONV *CMPFUNC)(const void* pItem1, const void* pItem2); +} // ---------------------------------------------------------------------------- -/** - base class managing data having size of type 'long' (not used directly) - - NB: for efficiency this often used class has no virtual functions (hence no - VTBL), even dtor is not virtual. If used as expected it won't - create any problems because ARRAYs from DEFINE_ARRAY have no dtor at all, - 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 -*/ +// Base class managing data having size of type 'long' (not used directly) +// +// NB: for efficiency this often used class has no virtual functions (hence no +// virtual table), even dtor is *not* virtual. If used as expected it +// won't create any problems because ARRAYs from DEFINE_ARRAY have no dtor +// at all, so it's not too important if it's not called (this happens when +// you cast "SomeArray *" as "BaseArray *" and then delete it) // ---------------------------------------------------------------------------- -class wxBaseArray + +class WXDLLEXPORT wxBaseArray { public: /** @name ctors and dtor */ @@ -76,43 +88,43 @@ public: /// assignment operator wxBaseArray& operator=(const wxBaseArray& src); /// not virtual, see above - /// EXCEPT for Gnu compiler to reduce warnings... -#ifdef __GNUG__ - virtual -#endif ~wxBaseArray(); //@} /** @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(uint uiSize); + 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 - uint Count() const { return m_uiCount; } + size_t GetCount() const { return m_nCount; } /// is it empty? - bool IsEmpty() const { return m_uiCount == 0; } + bool IsEmpty() const { return m_nCount == 0; } + /// this version is obsolete, use GetCount() + size_t Count() const { return m_nCount; } //@} 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 + // these methods are protected because if they were public one could + // 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(uint uiIndex) const - { wxASSERT( uiIndex < m_uiCount ); return m_pItems[uiIndex]; } + long& Item(size_t uiIndex) const + { wxASSERT( uiIndex < m_nCount ); return m_pItems[uiIndex]; } /// same as Item() - long& operator[](uint uiIndex) const { return Item(uiIndex); } + long& operator[](size_t uiIndex) const { return Item(uiIndex); } //@} /** @name item management */ @@ -120,82 +132,158 @@ protected: /** 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; + int Index(long lItem, bool bFromEnd = FALSE) const; + /// search for an item using binary search in a sorted array + int Index(long lItem, CMPFUNC fnCompare) const; + /// search for a place to insert the element into a sorted array + size_t IndexForInsert(long lItem, CMPFUNC fnCompare) const; /// add new element at the end - void Add (long lItem); - /// add new element at given position - void Insert(long lItem, uint uiIndex); + void Add(long lItem); + /// add item assuming the array is sorted with fnCompare function + void Add(long lItem, CMPFUNC fnCompare); + /// add new element at given position (it becomes Item[uiIndex]) + void Insert(long lItem, size_t uiIndex); /// remove first item matching this value void Remove(long lItem); /// remove item by index - void Remove(uint uiIndex); + void RemoveAt(size_t uiIndex); //@} /// sort array elements using given compare function - void Sort(CMPFUNC fCmp); + void Sort(CMPFUNC fnCompare); private: void Grow(); // makes array bigger if needed - uint 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 }; // ============================================================================ -// template classes +// The private helper macros containing the core of the array classes // ============================================================================ +// Implementation notes: +// +// JACS: Salford C++ doesn't like 'var->operator=' syntax, as in: +// { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src); +// so using a temporary variable instead. +// +// The classes need a (even trivial) ~name() to link under Mac X +// +// _WX_ERROR_REMOVE is needed to resolve the name conflict between the wxT() +// macor and T typedef: we can't use wxT() inside WX_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 +// _WX_DEFINE_ARRAY: array for simple types // ---------------------------------------------------------------------------- -#define _WX_DEFINE_ARRAY(T, name) \ + +#define _WX_DEFINE_ARRAY(T, name, classexp) \ +wxCOMPILE_TIME_ASSERT2(sizeof(T) <= sizeof(long), \ + TypeIsTooBigToBeStoredInWxArray, \ + name); \ typedef int (CMPFUNC_CONV *CMPFUNC##T)(T *pItem1, T *pItem2); \ -class name : public wxBaseArray \ +classexp name : public wxBaseArray \ { \ public: \ - name() \ - { wxASSERT( sizeof(T) <= sizeof(long) ); } \ + name() { } \ + ~name() { } \ \ name& operator=(const name& src) \ - { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src); \ + { wxBaseArray* temp = (wxBaseArray*) this; \ + (*temp) = ((const wxBaseArray&)src); \ return *this; } \ \ - T& operator[](uint uiIndex) const \ + T& operator[](size_t uiIndex) const \ { return (T&)(wxBaseArray::Item(uiIndex)); } \ - T& Item(uint uiIndex) const \ + T& Item(size_t uiIndex) const \ { return (T&)(wxBaseArray::Item(uiIndex)); } \ + T& Last() const \ + { return (T&)(wxBaseArray::Item(Count() - 1)); } \ \ int Index(T Item, bool bFromEnd = FALSE) const \ { return wxBaseArray::Index((long)Item, bFromEnd); } \ \ void Add(T Item) \ { wxBaseArray::Add((long)Item); } \ - void Insert(T Item, uint uiIndex) \ + void Insert(T Item, size_t uiIndex) \ { wxBaseArray::Insert((long)Item, uiIndex) ; } \ \ - void Remove(uint uiIndex) { wxBaseArray::Remove(uiIndex); } \ + void RemoveAt(size_t uiIndex) { wxBaseArray::RemoveAt(uiIndex); } \ void Remove(T Item) \ { int iIndex = Index(Item); \ - wxCHECK( iIndex != NOT_FOUND ); \ - wxBaseArray::Remove((uint)iIndex); } \ + wxCHECK2_MSG( iIndex != wxNOT_FOUND, return, \ + _WX_ERROR_REMOVE); \ + wxBaseArray::RemoveAt((size_t)iIndex); } \ \ void Sort(CMPFUNC##T fCmp) { wxBaseArray::Sort((CMPFUNC)fCmp); } \ } // ---------------------------------------------------------------------------- -// see WX_DECLARE_LIST and WX_DEFINE_LIST +// _WX_DEFINE_SORTED_ARRAY: sorted array for simple data types // ---------------------------------------------------------------------------- -#define _WX_DECLARE_LIST(T, name) \ + +#define _WX_DEFINE_SORTED_ARRAY(T, name, defcomp, classexp) \ +wxCOMPILE_TIME_ASSERT2(sizeof(T) <= sizeof(long), \ + TypeIsTooBigToBeStoredInWxArray, \ + name); \ +typedef int (CMPFUNC_CONV *SCMPFUNC##T)(T pItem1, T pItem2); \ +classexp name : public wxBaseArray \ +{ \ +public: \ + name(SCMPFUNC##T fn defcomp) { m_fnCompare = fn; } \ + \ + name& operator=(const name& src) \ + { wxBaseArray* temp = (wxBaseArray*) this; \ + (*temp) = ((const wxBaseArray&)src); \ + m_fnCompare = src.m_fnCompare; \ + return *this; } \ + \ + T& operator[](size_t uiIndex) const \ + { return (T&)(wxBaseArray::Item(uiIndex)); } \ + T& Item(size_t uiIndex) const \ + { return (T&)(wxBaseArray::Item(uiIndex)); } \ + T& Last() const \ + { return (T&)(wxBaseArray::Item(Count() - 1)); } \ + \ + int Index(T Item) const \ + { return wxBaseArray::Index((long)Item, (CMPFUNC)m_fnCompare); }\ + \ + size_t IndexForInsert(T Item) const \ + { return wxBaseArray::IndexForInsert((long)Item, \ + (CMPFUNC)m_fnCompare); } \ + \ + void AddAt(T item, size_t index) \ + { wxBaseArray::Insert((long)item, index); } \ + \ + void Add(T Item) \ + { wxBaseArray::Add((long)Item, (CMPFUNC)m_fnCompare); } \ + \ + void RemoveAt(size_t uiIndex) { wxBaseArray::RemoveAt(uiIndex); } \ + void Remove(T Item) \ + { int iIndex = Index(Item); \ + wxCHECK2_MSG( iIndex != wxNOT_FOUND, return, \ + _WX_ERROR_REMOVE ); \ + wxBaseArray::RemoveAt((size_t)iIndex); } \ + \ +private: \ + SCMPFUNC##T m_fnCompare; \ +} + +// ---------------------------------------------------------------------------- +// _WX_DECLARE_OBJARRAY: an array for pointers to type T with owning semantics +// ---------------------------------------------------------------------------- + +#define _WX_DECLARE_OBJARRAY(T, name, classexp) \ typedef int (CMPFUNC_CONV *CMPFUNC##T)(T** pItem1, T** pItem2); \ -class name : public wxBaseArray \ +classexp name : public wxBaseArray \ { \ public: \ name() { } \ @@ -204,10 +292,12 @@ public: \ \ ~name(); \ \ - T& operator[](uint uiIndex) const \ + T& operator[](size_t uiIndex) const \ { return *(T*)wxBaseArray::Item(uiIndex); } \ - T& Item(uint uiIndex) const \ + T& Item(size_t uiIndex) const \ { return *(T*)wxBaseArray::Item(uiIndex); } \ + T& Last() const \ + { return *(T*)(wxBaseArray::Item(Count() - 1)); } \ \ int Index(const T& Item, bool bFromEnd = FALSE) const; \ \ @@ -215,122 +305,222 @@ public: \ void Add(const T* pItem) \ { wxBaseArray::Add((long)pItem); } \ \ - void Insert(const T& Item, uint uiIndex); \ - void Insert(const T* pItem, uint uiIndex) \ + void Insert(const T& Item, size_t uiIndex); \ + void Insert(const T* pItem, size_t uiIndex) \ { wxBaseArray::Insert((long)pItem, uiIndex); } \ \ - void Empty(); \ + void Empty() { DoEmpty(); wxBaseArray::Empty(); } \ + void Clear() { DoEmpty(); wxBaseArray::Clear(); } \ \ - T* Detach(uint uiIndex) \ + T* Detach(size_t uiIndex) \ { T* p = (T*)wxBaseArray::Item(uiIndex); \ - wxBaseArray::Remove(uiIndex); return p; } \ - void Remove(uint uiIndex); \ + wxBaseArray::RemoveAt(uiIndex); return p; } \ + void RemoveAt(size_t uiIndex); \ \ void Sort(CMPFUNC##T fCmp) { wxBaseArray::Sort((CMPFUNC)fCmp); } \ \ private: \ + void DoEmpty(); \ void DoCopy(const name& src); \ } +// ============================================================================ +// The public macros for declaration and definition of the dynamic arrays +// ============================================================================ + +// Please note that for each macro WX_FOO_ARRAY we also have +// WX_FOO_EXPORTED_ARRAY and WX_FOO_USER_EXPORTED_ARRAY which are exactly the +// same except that they use an additional __declspec(dllexport) or equivalent +// under Windows if needed. +// +// The first (just EXPORTED) macros do it if wxWindows was compiled as a DLL +// and so must be used used inside the library. The second kind (USER_EXPORTED) +// allow the user code to do it when it wants. This is needed if you have a dll +// that wants to export a wxArray daubed with your own import/export goo. +// +// Finally, you can define the macro below as something special to modify the +// arrays defined by a simple WX_FOO_ARRAY as well. By default is is empty. +#define wxARRAY_DEFAULT_EXPORT + +// ---------------------------------------------------------------------------- +// WX_DEFINE_ARRAY(T, name) define an array class named "name" containing the +// elements of simple type T such that sizeof(T) <= sizeof(long) +// +// Note that the class defined has only inline function and doesn't take any +// space at all so there is no size penalty for defining multiple array classes // ---------------------------------------------------------------------------- -/** @name Macros for definition of dynamic arrays and lists - These macros are ugly (especially if you look in the sources ;-), but they - allow us to define 'template' classes without actually using templates. -
-
- Range checking is performed in debug build for both arrays and lists. Type - checking is done at compile-time. Warning: arrays never shrink, they - only grow, so loading 10 millions in an array only to delete them 2 lines - below is not recommended. However, it does free memory when it's - destroyed, so if you destroy array also, it's ok. - */ +#define WX_DEFINE_ARRAY(T, name) \ + WX_DEFINE_USER_EXPORTED_ARRAY(T, name, wxARRAY_DEFAULT_EXPORT) + +#define WX_DEFINE_EXPORTED_ARRAY(T, name) \ + WX_DEFINE_USER_EXPORTED_ARRAY(T, name, WXDLLEXPORT) + +#define WX_DEFINE_USER_EXPORTED_ARRAY(T, name, expmode) \ + typedef T _wxArray##name; \ + _WX_DEFINE_ARRAY(_wxArray##name, name, class expmode) + +// ---------------------------------------------------------------------------- +// WX_DEFINE_SORTED_ARRAY: this is the same as the previous macro, but it +// defines a sorted array. +// +// Differences: +// 1) it must be given a COMPARE function in ctor which takes 2 items of type +// T* and should return -1, 0 or +1 if the first one is less/greater +// than/equal to the second one. +// 2) the Add() method inserts the item in such was that the array is always +// sorted (it uses the COMPARE function) +// 3) it has no Sort() method because it's always sorted +// 4) Index() method is much faster (the sorted arrays use binary search +// instead of linear one), but Add() is slower. +// 5) there is no Insert() method because you can't insert an item into the +// given position in a sorted array but there is IndexForInsert()/AddAt() +// pair which may be used to optimize a common operation of "insert only if +// not found" +// +// Note that you have to specify the comparison function when creating the +// objects of this array type. If, as in 99% of cases, the comparison function +// is the same for all objects of a class, WX_DEFINE_SORTED_ARRAY_CMP below is +// more convenient. +// +// Summary: use this class when the speed of Index() function is important, use +// the normal arrays otherwise. +// ---------------------------------------------------------------------------- + +#define wxARRAY_EMPTY_CMP + +#define WX_DEFINE_SORTED_ARRAY(T, name) \ + WX_DEFINE_SORTED_USER_EXPORTED_ARRAY(T, name, wxARRAY_DEFAULT_EXPORT) + +#define WX_DEFINE_SORTED_EXPORTED_ARRAY(T, name) \ + WX_DEFINE_SORTED_USER_EXPORTED_ARRAY(T, name, WXDLLEXPORT) + +#define WX_DEFINE_SORTED_USER_EXPORTED_ARRAY(T, name, expmode) \ + typedef T _wxArray##name; \ + _WX_DEFINE_SORTED_ARRAY(_wxArray##name, name, wxARRAY_EMPTY_CMP, class expmode) + +// ---------------------------------------------------------------------------- +// WX_DEFINE_SORTED_ARRAY_CMP: exactly the same as above but the comparison +// function is provided by this macro and the objects of this class have a +// default constructor which just uses it. +// +// The arguments are: the element type, the comparison function and the array +// name +// +// NB: this is, of course, how WX_DEFINE_SORTED_ARRAY() should have worked from +// the very beginning - unfortunately I didn't think about this earlier :-( // ---------------------------------------------------------------------------- -//@{ - /** - 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 -
- - @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) - /** - 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. -
- Don't use this for simple types such as "int" or "long"! - You _may_ use it for "double" but it's awfully inefficient. -
-
- Note on Add/Insert functions: -
- 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 -
- 2) function(T&) will create a copy of the object and work with it -
-
- Also: -
- 1) Remove() will delete the object after removing it from the list -
- 2) Detach() just removes the object from the list (returning pointer to it) -
-
- NB1: Base type T should have an accessible copy ctor if Add(T&) is used, -
- NB2: Never ever cast a list to it's base type: as dtor is not virtual - it will provoke memory leaks -
-
- 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' - */ -#define WX_DECLARE_LIST(T, name) typedef T _L##name; \ - _WX_DECLARE_LIST(_L##name, name) - /** - To use a list class you must - -
  • #include "dynarray.h" -
  • DECLARE_LIST(element_type, list_class_name) -
  • #include "listimpl.cpp" -
  • DEFINE_LIST(list_class_name) // same as above! - -

    - 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. - - @memo define (must include listimpl.cpp!) list class 'name' - */ -#define WX_DEFINE_LIST(name) "don't forget to include listimpl.cpp!" -//@} +#define WX_DEFINE_SORTED_ARRAY_CMP(T, cmpfunc, name) \ + WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_CMP(T, cmpfunc, name, \ + wxARRAY_DEFAULT_EXPORT) + +#define WX_DEFINE_SORTED_EXPORTED_ARRAY_CMP(T, cmpfunc, name) \ + WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_CMP(T, cmpfunc, name, WXDLLEXPORT) + +#define WX_DEFINE_SORTED_USER_EXPORTED_ARRAY_CMP(T, cmpfunc, name, expmode) \ + typedef T _wxArray##name; \ + _WX_DEFINE_SORTED_ARRAY(_wxArray##name, name, = cmpfunc, class expmode) // ---------------------------------------------------------------------------- -/** @name Some commonly used predefined arrays */ -// # overhead if not used? +// WX_DECLARE_OBJARRAY(T, name): this macro generates a new array class +// named "name" which owns the objects of type T 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. +// +// Don't use this for simple types such as "int" or "long"! +// You _may_ use it for "double" but it's awfully inefficient. +// +// Note on Add/Insert functions: +// 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 +// 2) function(T&) will create a copy of the object and work with it +// +// Also: +// 1) Remove() will delete the object after removing it from the array +// 2) Detach() just removes the object from the array (returning pointer to it) +// +// NB1: Base type T should have an accessible copy ctor if Add(T&) is used +// NB2: Never ever cast a array to it's base type: as dtor is not virtual +// and so you risk having at least the memory leaks and probably worse +// +// Some functions of this class are not inline, so it takes some space to +// define new class from this template even if you don't use it - which is not +// the case for the simple (non-object) array classes +// +// +// To use an objarray class you must +// #include "dynarray.h" +// WX_DECLARE_OBJARRAY(element_type, list_class_name) +// #include "arrimpl.cpp" +// WX_DEFINE_OBJARRAY(list_class_name) // name must be the same as above! +// +// This is necessary because at the moment of DEFINE_OBJARRAY class parsing the +// 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. // ---------------------------------------------------------------------------- -//@{ - /** @name ArrayInt */ -WX_DEFINE_ARRAY(int, wxArrayInt); - /** @name ArrayLong */ -WX_DEFINE_ARRAY(long, wxArrayLong); - /** @name ArrayPtrVoid */ -WX_DEFINE_ARRAY(void *, wxArrayPtrVoid); -//@} +#define WX_DECLARE_OBJARRAY(T, name) \ + WX_DECLARE_USER_EXPORTED_OBJARRAY(T, name, wxARRAY_DEFAULT_EXPORT) + +#define WX_DECLARE_EXPORTED_OBJARRAY(T, name) \ + WX_DECLARE_USER_EXPORTED_OBJARRAY(T, name, WXDLLEXPORT) + +#define WX_DECLARE_USER_EXPORTED_OBJARRAY(T, name, expmode) \ + typedef T _wxObjArray##name; \ + _WX_DECLARE_OBJARRAY(_wxObjArray##name, name, class expmode) + +// WX_DEFINE_OBJARRAY is going to be redefined when arrimpl.cpp is included, +// try to provoke a human-understandable error if it used incorrectly. +// +// there is no real need for 3 different macros in the DEFINE case but do it +// anyhow for consistency +#define WX_DEFINE_OBJARRAY(name) DidYouIncludeArrimplCpp +#define WX_DEFINE_EXPORTED_OBJARRAY(name) WX_DEFINE_OBJARRAY(name) +#define WX_DEFINE_USER_EXPORTED_OBJARRAY(name) WX_DEFINE_OBJARRAY(name) + +// ---------------------------------------------------------------------------- +// Some commonly used predefined arrays +// ---------------------------------------------------------------------------- -//@} +WX_DEFINE_EXPORTED_ARRAY(int, wxArrayInt); +WX_DEFINE_EXPORTED_ARRAY(long, wxArrayLong); +WX_DEFINE_EXPORTED_ARRAY(void *, wxArrayPtrVoid); + +// ----------------------------------------------------------------------------- +// convenience 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