#endif
#include "wx/defs.h"
-#include "wx/debug.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 negative value, 0 or positive value 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 <B>not</B> 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 */
/// 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
+ // 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 */
/**
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;
/// 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 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, uint 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
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
// ============================================================================
-// ----------------------------------------------------------------------------
-// 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)
+// 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.
//
-// NB: it has only inline functions => takes no space at all
+// 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")
+
// ----------------------------------------------------------------------------
-#define _WX_DEFINE_ARRAY(T, name) \
+// _WX_DEFINE_ARRAY: array for simple types
+// ----------------------------------------------------------------------------
+
+#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)); } \
\
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); \
- wxCHECK2_MSG( iIndex != NOT_FOUND, return, \
- "removing inexisting element in wxArray::Remove" ); \
- 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); } \
}
// ----------------------------------------------------------------------------
-// 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.
-//
-// Summary: use this class when the speed of Index() function is important, use
-// the normal arrays otherwise.
-//
-// NB: it has only inline functions => takes no space at all
+// _WX_DEFINE_SORTED_ARRAY: sorted array for simple data types
// ----------------------------------------------------------------------------
-#define _WX_DEFINE_SORTED_ARRAY(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); \
-class name : public wxBaseArray \
+classexp name : public wxBaseArray \
{ \
public: \
- name(SCMPFUNC##T fn) \
- { wxASSERT( sizeof(T) <= sizeof(long) ); m_fnCompare = fn; } \
+ name(SCMPFUNC##T fn defcomp) { m_fnCompare = fn; } \
\
name& operator=(const name& src) \
- { ((wxBaseArray *)this)->operator=((const wxBaseArray&)src); \
+ { wxBaseArray* temp = (wxBaseArray*) this; \
+ (*temp) = ((const wxBaseArray&)src); \
m_fnCompare = src.m_fnCompare; \
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) 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 Remove(uint uiIndex) { wxBaseArray::Remove(uiIndex); } \
+ void RemoveAt(size_t uiIndex) { wxBaseArray::RemoveAt(uiIndex); } \
void Remove(T Item) \
{ int iIndex = Index(Item); \
- wxCHECK2_MSG( iIndex != NOT_FOUND, return, \
- "removing inexisting element in wxArray::Remove" ); \
- wxBaseArray::Remove((uint)iIndex); } \
+ wxCHECK2_MSG( iIndex != wxNOT_FOUND, return, \
+ _WX_ERROR_REMOVE ); \
+ wxBaseArray::RemoveAt((size_t)iIndex); } \
\
private: \
SCMPFUNC##T m_fnCompare; \
}
// ----------------------------------------------------------------------------
-// see WX_DECLARE_LIST and WX_DEFINE_LIST
+// _WX_DECLARE_OBJARRAY: an array for pointers to type T with owning semantics
// ----------------------------------------------------------------------------
-#define _WX_DECLARE_LIST(T, name) \
+
+#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() { } \
\
~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)); } \
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.
- <BR>
- <BR>
- Range checking is performed in debug build for both arrays and lists. Type
- checking is done at compile-time. Warning: arrays <I>never</I> shrink, they
- only grow, so loading 10 millions in an array only to delete them 2 lines
- below is <I>not</I> 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)
- <BR>
- NB: it has only inline functions => takes no space at all
- <BR>
-
- @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 does the same as WX_DEFINE_ARRAY except that the array will be
- sorted with the specified compare function.
- */
-#define WX_DEFINE_SORTED_ARRAY(T, name) typedef T _A##name; \
- _WX_DEFINE_SORTED_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.
- <BR>
- Don't use this for simple types such as "int" or "long"!
- You _may_ use it for "double" but it's awfully inefficient.
- <BR>
- <BR>
- Note on Add/Insert functions:
- <BR>
- 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
- <BR>
- 2) function(T&) will create a copy of the object and work with it
- <BR>
- <BR>
- Also:
- <BR>
- 1) Remove() will delete the object after removing it from the list
- <BR>
- 2) Detach() just removes the object from the list (returning pointer to it)
- <BR>
- <BR>
- NB1: Base type T should have an accessible copy ctor if Add(T&) is used,
- <BR>
- NB2: Never ever cast a list to it's base type: as dtor is <B>not</B> virtual
- it will provoke memory leaks
- <BR>
- <BR>
- 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
- <ll>
- <li>#include "dynarray.h"
- <li>DECLARE_LIST(element_type, list_class_name)
- <li>#include "listimpl.cpp"
- <li>DEFINE_LIST(list_class_name) // same as above!
- </ll>
- <BR><BR>
- 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
projects / wxWidgets.git / blobdiff