X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8cb50e4b4677abb67ffe9026780861c1b12a0463..020e385d47a4a76f1d7246a9751c35e1001db38b:/include/wx/list.h?ds=sidebyside diff --git a/include/wx/list.h b/include/wx/list.h index 1a04556ba9..2539ab1c10 100644 --- a/include/wx/list.h +++ b/include/wx/list.h @@ -1,147 +1,1281 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: list.h +// Name: wx/list.h // Purpose: wxList, wxStringList classes // Author: Julian Smart -// Modified by: +// Modified by: VZ at 16/11/98: WX_DECLARE_LIST() and typesafe lists added // Created: 29/01/98 // RCS-ID: $Id$ // Copyright: (c) 1998 Julian Smart -// Licence: wxWindows license +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +/* + All this is quite ugly but serves two purposes: + 1. Be almost 100% compatible with old, untyped, wxList class + 2. Ensure compile-time type checking for the linked lists + + The idea is to have one base class (wxListBase) working with "void *" data, + but to hide these untyped functions - i.e. make them protected, so they + can only be used from derived classes which have inline member functions + working with right types. This achieves the 2nd goal. As for the first one, + we provide a special derivation of wxListBase called wxList which looks just + like the old class. +*/ + #ifndef _WX_LISTH__ #define _WX_LISTH__ -#ifdef __GNUG__ -#pragma interface "list.h" -#endif +// ----------------------------------------------------------------------------- +// headers +// ----------------------------------------------------------------------------- #include "wx/defs.h" #include "wx/object.h" +#include "wx/string.h" + +#if wxUSE_STL + #include "wx/beforestd.h" + #include + #include + #include + #include "wx/afterstd.h" +#endif + +// ---------------------------------------------------------------------------- +// types +// ---------------------------------------------------------------------------- + +// type of compare function for list sort operation (as in 'qsort'): it should +// return a negative value, 0 or positive value if the first element is less +// than, equal or greater than the second + +extern "C" +{ +typedef int (* LINKAGEMODE wxSortCompareFunction)(const void *elem1, const void *elem2); +} + +class WXDLLIMPEXP_BASE wxObjectListNode; +typedef wxObjectListNode wxNode; + +// +typedef int (* LINKAGEMODE wxListIterateFunction)(void *current); + +// ---------------------------------------------------------------------------- +// constants +// ---------------------------------------------------------------------------- + +#if !defined(wxENUM_KEY_TYPE_DEFINED) +#define wxENUM_KEY_TYPE_DEFINED + +enum wxKeyType +{ + wxKEY_NONE, + wxKEY_INTEGER, + wxKEY_STRING +}; + +#endif + +#if wxUSE_STL + +#define wxLIST_COMPATIBILITY + +#define WX_DECLARE_LIST_3(elT, dummy1, liT, dummy2, decl) \ + WX_DECLARE_LIST_WITH_DECL(elT, liT, decl) +#define WX_DECLARE_LIST_PTR_3(elT, dummy1, liT, dummy2, decl) \ + WX_DECLARE_LIST_3(elT, dummy1, liT, dummy2, decl) + +#define WX_DECLARE_LIST_2(elT, liT, dummy, decl) \ + WX_DECLARE_LIST_WITH_DECL(elT, liT, decl) +#define WX_DECLARE_LIST_PTR_2(elT, liT, dummy, decl) \ + WX_DECLARE_LIST_2(elT, liT, dummy, decl) \ + +#define WX_DECLARE_LIST_WITH_DECL(elT, liT, decl) \ + WX_DECLARE_LIST_XO(elT*, liT, decl) + +#if !defined( __VISUALC__ ) + +template +class WXDLLIMPEXP_BASE wxList_SortFunction +{ +public: + wxList_SortFunction(wxSortCompareFunction f) : m_f(f) { } + bool operator()(const T& i1, const T& i2) + { return m_f((T*)&i1, (T*)&i2) < 0; } +private: + wxSortCompareFunction m_f; +}; + +#define WX_LIST_SORTFUNCTION( elT, f ) wxList_SortFunction(f) +#define VC6_WORKAROUND(elT, liT, decl) + +#else // if defined( __VISUALC__ ) + +#define WX_LIST_SORTFUNCTION( elT, f ) std::greater( f ) +#define VC6_WORKAROUND(elT, liT, decl) \ + decl liT; \ + \ + /* Workaround for broken VC6 STL incorrectly requires a std::greater<> */ \ + /* to be passed into std::list::sort() */ \ + template <> \ + struct std::greater \ + { \ + private: \ + wxSortCompareFunction m_CompFunc; \ + public: \ + greater( wxSortCompareFunction compfunc = NULL ) \ + : m_CompFunc( compfunc ) {} \ + bool operator()(const elT X, const elT Y) const \ + { \ + return m_CompFunc ? \ + ( m_CompFunc( X, Y ) < 0 ) : \ + ( X > Y ); \ + } \ + }; + +#endif // defined( __VISUALC__ ) + +/* + Note: the outer helper class _WX_LIST_HELPER_##liT below is a workaround + for mingw 3.2.3 compiler bug that prevents a static function of liT class + from being exported into dll. A minimal code snippet reproducing the bug: + + struct WXDLLEXPORT Foo + { + static void Bar(); + struct SomeInnerClass + { + friend class Foo; // comment this out to make it link + }; + ~Foo() + { + Bar(); + } + }; + + The program does not link under mingw_gcc 3.2.3 producing undefined + reference to Foo::Bar() function + */ + +// the real wxList-class declaration +#define WX_DECLARE_LIST_XO(elT, liT, decl) \ + class WXDLLEXPORT _WX_LIST_HELPER_##liT \ + { \ + typedef elT _WX_LIST_ITEM_TYPE_##liT; \ + public: \ + static void DeleteFunction( _WX_LIST_ITEM_TYPE_##liT X ); \ + }; \ + \ + VC6_WORKAROUND(elT, liT, decl) \ + decl liT : public std::list \ + { \ + private: \ + bool m_destroy; \ + public: \ + decl compatibility_iterator \ + { \ + private: \ + /* Workaround for broken VC6 nested class name resolution */ \ + typedef std::list::iterator iterator; \ + friend class liT; \ + private: \ + iterator m_iter; \ + liT * m_list; \ + public: \ + compatibility_iterator() \ + : m_iter(), m_list( NULL ) {} \ + compatibility_iterator( liT* li, iterator i ) \ + : m_iter( i ), m_list( li ) {} \ + compatibility_iterator( const liT* li, iterator i ) \ + : m_iter( i ), m_list( const_cast< liT* >( li ) ) {} \ + \ + compatibility_iterator* operator->() { return this; } \ + const compatibility_iterator* operator->() const { return this; } \ + \ + bool operator==(const compatibility_iterator& i) const \ + { \ + wxASSERT_MSG( m_list && i.m_list, \ + _T("comparing invalid iterators is illegal") ); \ + return (m_list == i.m_list) && (m_iter == i.m_iter); \ + } \ + bool operator!=(const compatibility_iterator& i) const \ + { return !( operator==( i ) ); } \ + operator bool() const \ + { return m_list ? m_iter != m_list->end() : false; } \ + bool operator !() const \ + { return !( operator bool() ); } \ + \ + elT GetData() const \ + { return *m_iter; } \ + void SetData( elT e ) \ + { *m_iter = e; } \ + \ + compatibility_iterator GetNext() const \ + { \ + iterator i = m_iter; \ + return compatibility_iterator( m_list, ++i ); \ + } \ + compatibility_iterator GetPrevious() const \ + { \ + if ( m_iter == m_list->begin() ) \ + return compatibility_iterator(); \ + \ + iterator i = m_iter; \ + return compatibility_iterator( m_list, --i ); \ + } \ + int IndexOf() const \ + { \ + return *this ? std::distance( m_list->begin(), m_iter ) \ + : wxNOT_FOUND; \ + } \ + }; \ + public: \ + liT() : m_destroy( false ) {} \ + \ + compatibility_iterator Find( const elT e ) const \ + { \ + liT* _this = const_cast< liT* >( this ); \ + return compatibility_iterator( _this, \ + std::find( _this->begin(), _this->end(), e ) ); \ + } \ + \ + bool IsEmpty() const \ + { return empty(); } \ + size_t GetCount() const \ + { return size(); } \ + int Number() const \ + { return static_cast< int >( GetCount() ); } \ + \ + compatibility_iterator Item( size_t idx ) const \ + { \ + iterator i = const_cast< liT* >(this)->begin(); \ + std::advance( i, idx ); \ + return compatibility_iterator( this, i ); \ + } \ + compatibility_iterator GetFirst() const \ + { \ + return compatibility_iterator( this, \ + const_cast< liT* >(this)->begin() ); \ + } \ + compatibility_iterator GetLast() const \ + { \ + iterator i = const_cast< liT* >(this)->end(); \ + return compatibility_iterator( this, !empty() ? --i : i ); \ + } \ + compatibility_iterator Member( elT e ) const \ + { return Find( e ); } \ + compatibility_iterator Nth( int n ) const \ + { return Item( n ); } \ + int IndexOf( elT e ) const \ + { return Find( e ).IndexOf(); } \ + \ + compatibility_iterator Append( elT e ) \ + { \ + push_back( e ); \ + return GetLast(); \ + } \ + compatibility_iterator Insert( elT e ) \ + { \ + push_front( e ); \ + return compatibility_iterator( this, begin() ); \ + } \ + compatibility_iterator Insert( compatibility_iterator & i, elT e ) \ + { \ + return compatibility_iterator( this, insert( i.m_iter, e ) ); \ + } \ + compatibility_iterator Insert( size_t idx, elT e ) \ + { \ + return compatibility_iterator( this, \ + insert( Item( idx ).m_iter, e ) ); \ + } \ + \ + void DeleteContents( bool destroy ) \ + { m_destroy = destroy; } \ + bool GetDeleteContents() const \ + { return m_destroy; } \ + void Erase( const compatibility_iterator& i ) \ + { \ + if ( m_destroy ) \ + _WX_LIST_HELPER_##liT::DeleteFunction( i->GetData() ); \ + erase( i.m_iter ); \ + } \ + bool DeleteNode( const compatibility_iterator& i ) \ + { \ + if( i ) \ + { \ + Erase( i ); \ + return true; \ + } \ + return false; \ + } \ + bool DeleteObject( elT e ) \ + { \ + return DeleteNode( Find( e ) ); \ + } \ + void Clear() \ + { \ + if ( m_destroy ) \ + std::for_each( begin(), end(), \ + _WX_LIST_HELPER_##liT::DeleteFunction ); \ + clear(); \ + } \ + /* Workaround for broken VC6 std::list::sort() see above */ \ + void Sort( wxSortCompareFunction compfunc ) \ + { sort( WX_LIST_SORTFUNCTION( elT, compfunc ) ); } \ + ~liT() { Clear(); } \ + } + +#define WX_DECLARE_LIST(elementtype, listname) \ + WX_DECLARE_LIST_WITH_DECL(elementtype, listname, class) +#define WX_DECLARE_LIST_PTR(elementtype, listname) \ + WX_DECLARE_LIST(elementtype, listname) + +#define WX_DECLARE_EXPORTED_LIST(elementtype, listname) \ + WX_DECLARE_LIST_WITH_DECL(elementtype, listname, class WXDLLEXPORT) +#define WX_DECLARE_EXPORTED_LIST_PTR(elementtype, listname) \ + WX_DECLARE_EXPORTED_LIST(elementtype, listname) + +#define WX_DECLARE_USER_EXPORTED_LIST(elementtype, listname, usergoo) \ + WX_DECLARE_LIST_WITH_DECL(elementtype, listname, class usergoo) +#define WX_DECLARE_USER_EXPORTED_LIST_PTR(elementtype, listname, usergoo) \ + WX_DECLARE_USER_EXPORTED_LIST(elementtype, listname, usergoo) + +// this macro must be inserted in your program after +// #include "wx/listimpl.cpp" +#define WX_DEFINE_LIST(name) "don't forget to include listimpl.cpp!" + +#define WX_DEFINE_EXPORTED_LIST(name) WX_DEFINE_LIST(name) +#define WX_DEFINE_USER_EXPORTED_LIST(name) WX_DEFINE_LIST(name) + +#else // if !wxUSE_STL -class WXDLLEXPORT wxList; +// due to circular header dependencies this function has to be declared here +// (normally it's found in utils.h which includes itself list.h...) +#if WXWIN_COMPATIBILITY_2_4 +extern WXDLLIMPEXP_BASE wxChar* copystring(const wxChar *s); +#endif + +// undef it to get rid of old, deprecated functions +#define wxLIST_COMPATIBILITY + +// ----------------------------------------------------------------------------- +// key stuff: a list may be optionally keyed on integer or string key +// ----------------------------------------------------------------------------- -#define wxKEY_NONE 0 -#define wxKEY_INTEGER 1 -#define wxKEY_STRING 2 -class WXDLLEXPORT wxNode: public wxObject +union wxListKeyValue { - DECLARE_DYNAMIC_CLASS(wxNode) - private: - - wxObject *data; - wxNode *next; - wxNode *previous; - - public: - wxList *list; - - // Optional key stuff - union - { long integer; - char *string; - } key; - - wxNode(wxList *the_list = (wxList *) NULL, wxNode *last_one = (wxNode *) NULL, wxNode *next_one = (wxNode *) NULL, wxObject *object = (wxObject *) NULL); - wxNode(wxList *the_list, wxNode *last_one, wxNode *next_one, - wxObject *object, long the_key); - wxNode(wxList *the_list, wxNode *last_one, wxNode *next_one, - wxObject *object, const char *the_key); - ~wxNode(void); - - inline wxNode *Next(void) const { return next; } - inline wxNode *Previous(void) const { return previous; } - inline wxObject *Data(void) const { return (wxObject *)data; } - inline void SetData(wxObject *the_data) { data = the_data; } + wxChar *string; }; -// type of compare function for list sort operation (as in 'qsort') -typedef int (*wxSortCompareFunction)(const void *elem1, const void *elem2); -typedef int (*wxListIterateFunction)(wxObject *o); +// a struct which may contain both types of keys +// +// implementation note: on one hand, this class allows to have only one function +// for any keyed operation instead of 2 almost equivalent. OTOH, it's needed to +// resolve ambiguity which we would otherwise have with wxStringList::Find() and +// wxList::Find(const char *). +class WXDLLIMPEXP_BASE wxListKey +{ +public: + // implicit ctors + wxListKey() : m_keyType(wxKEY_NONE) + { } + wxListKey(long i) : m_keyType(wxKEY_INTEGER) + { m_key.integer = i; } + wxListKey(const wxChar *s) : m_keyType(wxKEY_STRING) + { m_key.string = wxStrdup(s); } + wxListKey(const wxString& s) : m_keyType(wxKEY_STRING) + { m_key.string = wxStrdup(s.c_str()); } + + // accessors + wxKeyType GetKeyType() const { return m_keyType; } + const wxChar *GetString() const + { wxASSERT( m_keyType == wxKEY_STRING ); return m_key.string; } + long GetNumber() const + { wxASSERT( m_keyType == wxKEY_INTEGER ); return m_key.integer; } + + // comparison + // Note: implementation moved to list.cpp to prevent BC++ inline + // expansion warning. + bool operator==(wxListKeyValue value) const ; + + // dtor + ~wxListKey() + { + if ( m_keyType == wxKEY_STRING ) + free(m_key.string); + } + +private: + wxKeyType m_keyType; + wxListKeyValue m_key; +}; + +// ----------------------------------------------------------------------------- +// wxNodeBase class is a (base for) node in a double linked list +// ----------------------------------------------------------------------------- + +extern WXDLLIMPEXP_DATA_BASE(wxListKey) wxDefaultListKey; -class WXDLLEXPORT wxList: public wxObject +class WXDLLIMPEXP_BASE wxListBase; + +class WXDLLIMPEXP_BASE wxNodeBase { - DECLARE_DYNAMIC_CLASS(wxList) - - public: - int n; - int destroy_data; - wxNode *first_node; - wxNode *last_node; - unsigned int key_type; - - wxList(void); - wxList(const unsigned int the_key_type); - wxList(int N, wxObject *Objects[]); - wxList(wxObject *object, ...); - - ~wxList(void); - - inline int Number(void) const { return n; } - - // Append to end of list - wxNode *Append(wxObject *object); - - // Insert at front of list - wxNode *Insert(wxObject *object); - - // Insert before given node - wxNode *Insert(wxNode *position, wxObject *object); - - // Keyed append - wxNode *Append(long key, wxObject *object); - wxNode *Append(const char *key, wxObject *object); - - bool DeleteNode(wxNode *node); - bool DeleteObject(wxObject *object); // Finds object pointer and - // deletes node (and object if - // DeleteContents is on) - virtual void Clear(void); // Delete all nodes - - inline wxNode *First(void) const { return first_node; } - inline wxNode *Last(void) const { return last_node; } - wxNode *Nth(int i) const; // nth node counting from 0 - - // Keyed search - virtual wxNode *Find(long key) const; - virtual wxNode *Find(const char *key) const; - - virtual wxNode *Member(wxObject *object) const; - - inline void DeleteContents(int destroy) { destroy_data = destroy; } - // Instruct it to destroy user data - // when deleting nodes - // this function allows the sorting of arbitrary lists by giving - // a function to compare two list elements. - void Sort(const wxSortCompareFunction compfunc); - - wxObject *FirstThat(wxListIterateFunction func); - void ForEach(wxListIterateFunction func); - wxObject *LastThat(wxListIterateFunction func); +friend class wxListBase; +public: + // ctor + wxNodeBase(wxListBase *list = (wxListBase *)NULL, + wxNodeBase *previous = (wxNodeBase *)NULL, + wxNodeBase *next = (wxNodeBase *)NULL, + void *data = NULL, + const wxListKey& key = wxDefaultListKey); + + virtual ~wxNodeBase(); + + // FIXME no check is done that the list is really keyed on strings + const wxChar *GetKeyString() const { return m_key.string; } + long GetKeyInteger() const { return m_key.integer; } + + // Necessary for some existing code + void SetKeyString(wxChar* s) { m_key.string = s; } + void SetKeyInteger(long i) { m_key.integer = i; } + +#ifdef wxLIST_COMPATIBILITY + // compatibility methods, use Get* instead. + wxDEPRECATED( wxNode *Next() const ); + wxDEPRECATED( wxNode *Previous() const ); + wxDEPRECATED( wxObject *Data() const ); +#endif // wxLIST_COMPATIBILITY + +protected: + // all these are going to be "overloaded" in the derived classes + wxNodeBase *GetNext() const { return m_next; } + wxNodeBase *GetPrevious() const { return m_previous; } + + void *GetData() const { return m_data; } + void SetData(void *data) { m_data = data; } + + // get 0-based index of this node within the list or wxNOT_FOUND + int IndexOf() const; + + virtual void DeleteData() { } +public: + // for wxList::iterator + void** GetDataPtr() const { return &(((wxNodeBase*)this)->m_data); } +private: + // optional key stuff + wxListKeyValue m_key; + + void *m_data; // user data + wxNodeBase *m_next, // next and previous nodes in the list + *m_previous; + + wxListBase *m_list; // list we belong to + + DECLARE_NO_COPY_CLASS(wxNodeBase) }; -// String list class. N.B. this always copies strings -// with Add and deletes them itself. -class WXDLLEXPORT wxStringList: public wxList +// ----------------------------------------------------------------------------- +// a double-linked list class +// ----------------------------------------------------------------------------- + +class WXDLLIMPEXP_BASE wxList; + +class WXDLLIMPEXP_BASE wxListBase : public wxObject { - DECLARE_DYNAMIC_CLASS(wxStringList) - - public: - wxStringList(void); - wxStringList(const wxStringList& list); - wxStringList(const char *first ...); - ~wxStringList(void); - - virtual wxNode *Add(const char *s); - virtual void Delete(const char *s); - virtual char **ListToArray(bool new_copies = FALSE) const; - virtual void Sort(void); - virtual bool Member(const char *s) const; - virtual void Clear(void); - void operator= (const wxStringList& list); - char* operator[] (int i) const; +friend class WXDLLIMPEXP_BASE wxNodeBase; // should be able to call DetachNode() +friend class wxHashTableBase; // should be able to call untyped Find() + +public: + // default ctor & dtor + wxListBase(wxKeyType keyType = wxKEY_NONE) + { Init(keyType); } + virtual ~wxListBase(); + + // accessors + // count of items in the list + size_t GetCount() const { return m_count; } + + // return true if this list is empty + bool IsEmpty() const { return m_count == 0; } + + // operations + + // delete all nodes + void Clear(); + + // instruct it to destroy user data when deleting nodes + void DeleteContents(bool destroy) { m_destroy = destroy; } + + // query if to delete + bool GetDeleteContents() const + { return m_destroy; } + + // get the keytype + wxKeyType GetKeyType() const + { return m_keyType; } + + // set the keytype (required by the serial code) + void SetKeyType(wxKeyType keyType) + { wxASSERT( m_count==0 ); m_keyType = keyType; } + +#ifdef wxLIST_COMPATIBILITY + // compatibility methods from old wxList + wxDEPRECATED( int Number() const ); // use GetCount instead. + wxDEPRECATED( wxNode *First() const ); // use GetFirst + wxDEPRECATED( wxNode *Last() const ); // use GetLast + wxDEPRECATED( wxNode *Nth(size_t n) const ); // use Item + + // kludge for typesafe list migration in core classes. + wxDEPRECATED( operator wxList&() const ); +#endif // wxLIST_COMPATIBILITY + +protected: + + // all methods here are "overloaded" in derived classes to provide compile + // time type checking + + // create a node for the list of this type + virtual wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next, + void *data, + const wxListKey& key = wxDefaultListKey) = 0; + +// Can't access these from derived classes otherwise (bug in Salford C++?) +#ifdef __SALFORDC__ +public: +#endif + + // ctors + // from an array + wxListBase(size_t count, void *elements[]); + // from a sequence of objects + wxListBase(void *object, ... /* terminate with NULL */); + +protected: + void Assign(const wxListBase& list) + { Clear(); DoCopy(list); } + + // get list head/tail + wxNodeBase *GetFirst() const { return m_nodeFirst; } + wxNodeBase *GetLast() const { return m_nodeLast; } + + // by (0-based) index + wxNodeBase *Item(size_t index) const; + + // get the list item's data + void *operator[](size_t n) const + { + wxNodeBase *node = Item(n); + + return node ? node->GetData() : (wxNodeBase *)NULL; + } + + // operations + // append to end of list + wxNodeBase *Prepend(void *object) + { return (wxNodeBase *)wxListBase::Insert(object); } + // append to beginning of list + wxNodeBase *Append(void *object); + // insert a new item at the beginning of the list + wxNodeBase *Insert(void *object) { return Insert( (wxNodeBase*)NULL, object); } + // insert a new item at the given position + wxNodeBase *Insert(size_t pos, void *object) + { return pos == GetCount() ? Append(object) + : Insert(Item(pos), object); } + // insert before given node or at front of list if prev == NULL + wxNodeBase *Insert(wxNodeBase *prev, void *object); + + // keyed append + wxNodeBase *Append(long key, void *object); + wxNodeBase *Append(const wxChar *key, void *object); + + // removes node from the list but doesn't delete it (returns pointer + // to the node or NULL if it wasn't found in the list) + wxNodeBase *DetachNode(wxNodeBase *node); + // delete element from list, returns false if node not found + bool DeleteNode(wxNodeBase *node); + // finds object pointer and deletes node (and object if DeleteContents + // is on), returns false if object not found + bool DeleteObject(void *object); + + // search (all return NULL if item not found) + // by data + wxNodeBase *Find(const void *object) const; + + // by key + wxNodeBase *Find(const wxListKey& key) const; + + // get 0-based index of object or wxNOT_FOUND + int IndexOf( void *object ) const; + + // this function allows the sorting of arbitrary lists by giving + // a function to compare two list elements. The list is sorted in place. + void Sort(const wxSortCompareFunction compfunc); + + // functions for iterating over the list + void *FirstThat(wxListIterateFunction func); + void ForEach(wxListIterateFunction func); + void *LastThat(wxListIterateFunction func); + + // for STL interface, "last" points to one after the last node + // of the controlled sequence (NULL for the end of the list) + void Reverse(); + void DeleteNodes(wxNodeBase* first, wxNodeBase* last); +private: + + // common part of all ctors + void Init(wxKeyType keyType = wxKEY_NONE); + + // helpers + // common part of copy ctor and assignment operator + void DoCopy(const wxListBase& list); + // common part of all Append()s + wxNodeBase *AppendCommon(wxNodeBase *node); + // free node's data and node itself + void DoDeleteNode(wxNodeBase *node); + + size_t m_count; // number of elements in the list + bool m_destroy; // destroy user data when deleting list items? + wxNodeBase *m_nodeFirst, // pointers to the head and tail of the list + *m_nodeLast; + + wxKeyType m_keyType; // type of our keys (may be wxKEY_NONE) }; +// ----------------------------------------------------------------------------- +// macros for definition of "template" list type +// ----------------------------------------------------------------------------- + +// and now some heavy magic... + +// declare a list type named 'name' and containing elements of type 'T *' +// (as a by product of macro expansion you also get wx##name##Node +// wxNode-derived type) +// +// implementation details: +// 1. We define _WX_LIST_ITEM_TYPE_##name typedef to save in it the item type +// for the list of given type - this allows us to pass only the list name +// to WX_DEFINE_LIST() even if it needs both the name and the type +// +// 2. We redefine all non-type-safe wxList functions with type-safe versions +// which don't take any space (everything is inline), but bring compile +// time error checking. +// +// 3. The macro which is usually used (WX_DECLARE_LIST) is defined in terms of +// a more generic WX_DECLARE_LIST_2 macro which, in turn, uses the most +// generic WX_DECLARE_LIST_3 one. The last macro adds a sometimes +// interesting capability to store polymorphic objects in the list and is +// particularly useful with, for example, "wxWindow *" list where the +// wxWindowBase pointers are put into the list, but wxWindow pointers are +// retrieved from it. +// +// 4. final hack is that WX_DECLARE_LIST_3 is defined in terms of +// WX_DECLARE_LIST_4 to allow defining classes without operator->() as +// it results in compiler warnings when this operator doesn't make sense +// (i.e. stored elements are not pointers) + +// common part of WX_DECLARE_LIST_3 and WX_DECLARE_LIST_PTR_3 +#define WX_DECLARE_LIST_4(T, Tbase, name, nodetype, classexp, ptrop) \ + typedef int (*wxSortFuncFor_##name)(const T **, const T **); \ + \ + classexp nodetype : public wxNodeBase \ + { \ + public: \ + nodetype(wxListBase *list = (wxListBase *)NULL, \ + nodetype *previous = (nodetype *)NULL, \ + nodetype *next = (nodetype *)NULL, \ + T *data = (T *)NULL, \ + const wxListKey& key = wxDefaultListKey) \ + : wxNodeBase(list, previous, next, data, key) { } \ + \ + nodetype *GetNext() const \ + { return (nodetype *)wxNodeBase::GetNext(); } \ + nodetype *GetPrevious() const \ + { return (nodetype *)wxNodeBase::GetPrevious(); } \ + \ + T *GetData() const \ + { return (T *)wxNodeBase::GetData(); } \ + void SetData(T *data) \ + { wxNodeBase::SetData(data); } \ + \ + protected: \ + virtual void DeleteData(); \ + \ + DECLARE_NO_COPY_CLASS(nodetype) \ + }; \ + \ + classexp name : public wxListBase \ + { \ + public: \ + typedef nodetype Node; \ + classexp compatibility_iterator \ + { \ + public: \ + compatibility_iterator(Node *ptr = NULL) : m_ptr(ptr) { } \ + \ + Node *operator->() const { return m_ptr; } \ + operator Node *() const { return m_ptr; } \ + \ + private: \ + Node *m_ptr; \ + }; \ + \ + name(wxKeyType keyType = wxKEY_NONE) : wxListBase(keyType) \ + { } \ + name(const name& list) : wxListBase(list.GetKeyType()) \ + { Assign(list); } \ + name(size_t count, T *elements[]) \ + : wxListBase(count, (void **)elements) { } \ + \ + name& operator=(const name& list) \ + { Assign(list); return *this; } \ + \ + nodetype *GetFirst() const \ + { return (nodetype *)wxListBase::GetFirst(); } \ + nodetype *GetLast() const \ + { return (nodetype *)wxListBase::GetLast(); } \ + \ + nodetype *Item(size_t index) const \ + { return (nodetype *)wxListBase::Item(index); } \ + \ + T *operator[](size_t index) const \ + { \ + nodetype *node = Item(index); \ + return node ? (T*)(node->GetData()) : (T*)NULL; \ + } \ + \ + nodetype *Append(Tbase *object) \ + { return (nodetype *)wxListBase::Append(object); } \ + nodetype *Insert(Tbase *object) \ + { return (nodetype *)Insert((nodetype*)NULL, object); } \ + nodetype *Insert(size_t pos, Tbase *object) \ + { return (nodetype *)wxListBase::Insert(pos, object); } \ + nodetype *Insert(nodetype *prev, Tbase *object) \ + { return (nodetype *)wxListBase::Insert(prev, object); } \ + \ + nodetype *Append(long key, void *object) \ + { return (nodetype *)wxListBase::Append(key, object); } \ + nodetype *Append(const wxChar *key, void *object) \ + { return (nodetype *)wxListBase::Append(key, object); } \ + \ + nodetype *DetachNode(nodetype *node) \ + { return (nodetype *)wxListBase::DetachNode(node); } \ + bool DeleteNode(nodetype *node) \ + { return wxListBase::DeleteNode(node); } \ + bool DeleteObject(Tbase *object) \ + { return wxListBase::DeleteObject(object); } \ + void Erase(nodetype *it) \ + { DeleteNode(it); } \ + \ + nodetype *Find(const Tbase *object) const \ + { return (nodetype *)wxListBase::Find(object); } \ + \ + virtual nodetype *Find(const wxListKey& key) const \ + { return (nodetype *)wxListBase::Find(key); } \ + \ + int IndexOf(Tbase *object) const \ + { return wxListBase::IndexOf(object); } \ + \ + void Sort(wxSortCompareFunction func) \ + { wxListBase::Sort(func); } \ + void Sort(wxSortFuncFor_##name func) \ + { Sort((wxSortCompareFunction)func); } \ + \ + protected: \ + virtual wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next, \ + void *data, \ + const wxListKey& key = wxDefaultListKey) \ + { \ + return new nodetype(this, \ + (nodetype *)prev, (nodetype *)next, \ + (T *)data, key); \ + } \ + /* STL interface */ \ + public: \ + typedef size_t size_type; \ + typedef int difference_type; \ + typedef T* value_type; \ + typedef Tbase* base_value_type; \ + typedef value_type& reference; \ + typedef const value_type& const_reference; \ + typedef base_value_type& base_reference; \ + typedef const base_value_type& const_base_reference; \ + \ + classexp iterator \ + { \ + typedef name list; \ + public: \ + typedef nodetype Node; \ + typedef iterator itor; \ + typedef T* value_type; \ + typedef value_type* ptr_type; \ + typedef value_type& reference; \ + \ + Node* m_node; \ + Node* m_init; \ + public: \ + typedef reference reference_type; \ + typedef ptr_type pointer_type; \ + \ + iterator(Node* node, Node* init) : m_node(node), m_init(init) {}\ + iterator() : m_node(NULL), m_init(NULL) { } \ + reference_type operator*() const \ + { return *(pointer_type)m_node->GetDataPtr(); } \ + ptrop \ + itor& operator++() { m_node = m_node->GetNext(); return *this; }\ + const itor operator++(int) \ + { itor tmp = *this; m_node = m_node->GetNext(); return tmp; }\ + itor& operator--() \ + { \ + m_node = m_node ? m_node->GetPrevious() : m_init; \ + return *this; \ + } \ + const itor operator--(int) \ + { \ + itor tmp = *this; \ + m_node = m_node ? m_node->GetPrevious() : m_init; \ + return tmp; \ + } \ + bool operator!=(const itor& it) const \ + { return it.m_node != m_node; } \ + bool operator==(const itor& it) const \ + { return it.m_node == m_node; } \ + }; \ + classexp const_iterator \ + { \ + typedef name list; \ + public: \ + typedef nodetype Node; \ + typedef T* value_type; \ + typedef const value_type& const_reference; \ + typedef const_iterator itor; \ + typedef value_type* ptr_type; \ + \ + Node* m_node; \ + Node* m_init; \ + public: \ + typedef const_reference reference_type; \ + typedef const ptr_type pointer_type; \ + \ + const_iterator(Node* node, Node* init) \ + : m_node(node), m_init(init) { } \ + const_iterator() : m_node(NULL), m_init(NULL) { } \ + const_iterator(const iterator& it) \ + : m_node(it.m_node), m_init(it.m_init) { } \ + reference_type operator*() const \ + { return *(pointer_type)m_node->GetDataPtr(); } \ + ptrop \ + itor& operator++() { m_node = m_node->GetNext(); return *this; }\ + const itor operator++(int) \ + { itor tmp = *this; m_node = m_node->GetNext(); return tmp; }\ + itor& operator--() \ + { \ + m_node = m_node ? m_node->GetPrevious() : m_init; \ + return *this; \ + } \ + const itor operator--(int) \ + { \ + itor tmp = *this; \ + m_node = m_node ? m_node->GetPrevious() : m_init; \ + return tmp; \ + } \ + bool operator!=(const itor& it) const \ + { return it.m_node != m_node; } \ + bool operator==(const itor& it) const \ + { return it.m_node == m_node; } \ + }; \ + classexp reverse_iterator \ + { \ + typedef name list; \ + public: \ + typedef nodetype Node; \ + typedef T* value_type; \ + typedef reverse_iterator itor; \ + typedef value_type* ptr_type; \ + typedef value_type& reference; \ + \ + Node* m_node; \ + Node* m_init; \ + public: \ + typedef reference reference_type; \ + typedef ptr_type pointer_type; \ + \ + reverse_iterator(Node* node, Node* init) \ + : m_node(node), m_init(init) { } \ + reverse_iterator() : m_node(NULL), m_init(NULL) { } \ + reference_type operator*() const \ + { return *(pointer_type)m_node->GetDataPtr(); } \ + ptrop \ + itor& operator++() \ + { m_node = m_node->GetPrevious(); return *this; } \ + const itor operator++(int) \ + { itor tmp = *this; m_node = m_node->GetPrevious(); return tmp; }\ + itor& operator--() \ + { m_node = m_node ? m_node->GetNext() : m_init; return *this; } \ + const itor operator--(int) \ + { \ + itor tmp = *this; \ + m_node = m_node ? m_node->GetNext() : m_init; \ + return tmp; \ + } \ + bool operator!=(const itor& it) const \ + { return it.m_node != m_node; } \ + bool operator==(const itor& it) const \ + { return it.m_node == m_node; } \ + }; \ + classexp const_reverse_iterator \ + { \ + typedef name list; \ + public: \ + typedef nodetype Node; \ + typedef T* value_type; \ + typedef const_reverse_iterator itor; \ + typedef value_type* ptr_type; \ + typedef const value_type& const_reference; \ + \ + Node* m_node; \ + Node* m_init; \ + public: \ + typedef const_reference reference_type; \ + typedef const ptr_type pointer_type; \ + \ + const_reverse_iterator(Node* node, Node* init) \ + : m_node(node), m_init(init) { } \ + const_reverse_iterator() : m_node(NULL), m_init(NULL) { } \ + const_reverse_iterator(const reverse_iterator& it) \ + : m_node(it.m_node), m_init(it.m_init) { } \ + reference_type operator*() const \ + { return *(pointer_type)m_node->GetDataPtr(); } \ + ptrop \ + itor& operator++() \ + { m_node = m_node->GetPrevious(); return *this; } \ + const itor operator++(int) \ + { itor tmp = *this; m_node = m_node->GetPrevious(); return tmp; }\ + itor& operator--() \ + { m_node = m_node ? m_node->GetNext() : m_init; return *this;}\ + const itor operator--(int) \ + { \ + itor tmp = *this; \ + m_node = m_node ? m_node->GetNext() : m_init; \ + return tmp; \ + } \ + bool operator!=(const itor& it) const \ + { return it.m_node != m_node; } \ + bool operator==(const itor& it) const \ + { return it.m_node == m_node; } \ + }; \ + \ + wxEXPLICIT name(size_type n, const_reference v = value_type()) \ + { assign(n, v); } \ + name(const const_iterator& first, const const_iterator& last) \ + { assign(first, last); } \ + iterator begin() { return iterator(GetFirst(), GetLast()); } \ + const_iterator begin() const \ + { return const_iterator(GetFirst(), GetLast()); } \ + iterator end() { return iterator(NULL, GetLast()); } \ + const_iterator end() const { return const_iterator(NULL, GetLast()); }\ + reverse_iterator rbegin() \ + { return reverse_iterator(GetLast(), GetFirst()); } \ + const_reverse_iterator rbegin() const \ + { return const_reverse_iterator(GetLast(), GetFirst()); } \ + reverse_iterator rend() { return reverse_iterator(NULL, GetFirst()); }\ + const_reverse_iterator rend() const \ + { return const_reverse_iterator(NULL, GetFirst()); } \ + void resize(size_type n, value_type v = value_type()) \ + { \ + while (n < size()) \ + pop_back(); \ + while (n > size()) \ + push_back(v); \ + } \ + size_type size() const { return GetCount(); } \ + size_type max_size() const { return INT_MAX; } \ + bool empty() const { return IsEmpty(); } \ + reference front() { return *begin(); } \ + const_reference front() const { return *begin(); } \ + reference back() { iterator tmp = end(); return *--tmp; } \ + const_reference back() const { const_iterator tmp = end(); return *--tmp; }\ + void push_front(const_reference v = value_type()) \ + { Insert(GetFirst(), (const_base_reference)v); } \ + void pop_front() { DeleteNode(GetFirst()); } \ + void push_back(const_reference v = value_type()) \ + { Append((const_base_reference)v); } \ + void pop_back() { DeleteNode(GetLast()); } \ + void assign(const_iterator first, const const_iterator& last) \ + { \ + clear(); \ + for(; first != last; ++first) \ + Append((const_base_reference)*first); \ + } \ + void assign(size_type n, const_reference v = value_type()) \ + { \ + clear(); \ + for(size_type i = 0; i < n; ++i) \ + Append((const_base_reference)v); \ + } \ + iterator insert(const iterator& it, const_reference v = value_type())\ + { \ + Insert(it.m_node, (const_base_reference)v); \ + return iterator(it.m_node->GetPrevious(), GetLast()); \ + } \ + void insert(const iterator& it, size_type n, const_reference v = value_type())\ + { \ + for(size_type i = 0; i < n; ++i) \ + Insert(it.m_node, (const_base_reference)v); \ + } \ + void insert(const iterator& it, const_iterator first, const const_iterator& last)\ + { \ + for(; first != last; ++first) \ + Insert(it.m_node, (const_base_reference)*first); \ + } \ + iterator erase(const iterator& it) \ + { \ + iterator next = iterator(it.m_node->GetNext(), GetLast()); \ + DeleteNode(it.m_node); return next; \ + } \ + iterator erase(const iterator& first, const iterator& last) \ + { \ + iterator next = last; ++next; \ + DeleteNodes(first.m_node, last.m_node); \ + return next; \ + } \ + void clear() { Clear(); } \ + void splice(const iterator& it, name& l, const iterator& first, const iterator& last)\ + { insert(it, first, last); l.erase(first, last); } \ + void splice(const iterator& it, name& l) \ + { splice(it, l, l.begin(), l.end() ); } \ + void splice(const iterator& it, name& l, const iterator& first) \ + { \ + iterator tmp = first; ++tmp; \ + if(it == first || it == tmp) return; \ + insert(it, *first); \ + l.erase(first); \ + } \ + void remove(const_reference v) \ + { DeleteObject((const_base_reference)v); } \ + void reverse() \ + { Reverse(); } \ + /* void swap(name& l) \ + { \ + { size_t t = m_count; m_count = l.m_count; l.m_count = t; } \ + { bool t = m_destroy; m_destroy = l.m_destroy; l.m_destroy = t; }\ + { wxNodeBase* t = m_nodeFirst; m_nodeFirst = l.m_nodeFirst; l.m_nodeFirst = t; }\ + { wxNodeBase* t = m_nodeLast; m_nodeLast = l.m_nodeLast; l.m_nodeLast = t; }\ + { wxKeyType t = m_keyType; m_keyType = l.m_keyType; l.m_keyType = t; }\ + } */ \ + } + +#define WX_LIST_PTROP \ + pointer_type operator->() const \ + { return (pointer_type)m_node->GetDataPtr(); } +#define WX_LIST_PTROP_NONE + +#define WX_DECLARE_LIST_3(T, Tbase, name, nodetype, classexp) \ + WX_DECLARE_LIST_4(T, Tbase, name, nodetype, classexp, WX_LIST_PTROP_NONE) +#define WX_DECLARE_LIST_PTR_3(T, Tbase, name, nodetype, classexp) \ + WX_DECLARE_LIST_4(T, Tbase, name, nodetype, classexp, WX_LIST_PTROP) + +#define WX_DECLARE_LIST_2(elementtype, listname, nodename, classexp) \ + WX_DECLARE_LIST_3(elementtype, elementtype, listname, nodename, classexp) +#define WX_DECLARE_LIST_PTR_2(elementtype, listname, nodename, classexp) \ + WX_DECLARE_LIST_PTR_3(elementtype, elementtype, listname, nodename, classexp) + +#define WX_DECLARE_LIST(elementtype, listname) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node, class) +#define WX_DECLARE_LIST_PTR(elementtype, listname) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_PTR_2(elementtype, listname, wx##listname##Node, class) + +#define WX_DECLARE_LIST_WITH_DECL(elementtype, listname, decl) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node, decl) + +#define WX_DECLARE_EXPORTED_LIST(elementtype, listname) \ + WX_DECLARE_LIST_WITH_DECL(elementtype, listname, class WXDLLEXPORT) + +#define WX_DECLARE_EXPORTED_LIST_PTR(elementtype, listname) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_PTR_2(elementtype, listname, wx##listname##Node, class WXDLLEXPORT) + +#define WX_DECLARE_USER_EXPORTED_LIST(elementtype, listname, usergoo) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node, class usergoo) +#define WX_DECLARE_USER_EXPORTED_LIST_PTR(elementtype, listname, usergoo) \ + typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \ + WX_DECLARE_LIST_PTR_2(elementtype, listname, wx##listname##Node, class usergoo) + +// this macro must be inserted in your program after +// #include "wx/listimpl.cpp" +#define WX_DEFINE_LIST(name) "don't forget to include listimpl.cpp!" + +#define WX_DEFINE_EXPORTED_LIST(name) WX_DEFINE_LIST(name) +#define WX_DEFINE_USER_EXPORTED_LIST(name) WX_DEFINE_LIST(name) + +#endif // !wxUSE_STL + +// ============================================================================ +// now we can define classes 100% compatible with the old ones +// ============================================================================ + +// ---------------------------------------------------------------------------- +// commonly used list classes +// ---------------------------------------------------------------------------- + +#if defined(wxLIST_COMPATIBILITY) + +// inline compatibility functions + +#if !wxUSE_STL + +// ---------------------------------------------------------------------------- +// wxNodeBase deprecated methods +// ---------------------------------------------------------------------------- + +inline wxNode *wxNodeBase::Next() const { return (wxNode *)GetNext(); } +inline wxNode *wxNodeBase::Previous() const { return (wxNode *)GetPrevious(); } +inline wxObject *wxNodeBase::Data() const { return (wxObject *)GetData(); } + +// ---------------------------------------------------------------------------- +// wxListBase deprecated methods +// ---------------------------------------------------------------------------- + +inline int wxListBase::Number() const { return (int)GetCount(); } +inline wxNode *wxListBase::First() const { return (wxNode *)GetFirst(); } +inline wxNode *wxListBase::Last() const { return (wxNode *)GetLast(); } +inline wxNode *wxListBase::Nth(size_t n) const { return (wxNode *)Item(n); } +inline wxListBase::operator wxList&() const { return *(wxList*)this; } + +#endif + +// define this to make a lot of noise about use of the old wxList classes. +//#define wxWARN_COMPAT_LIST_USE + +// ---------------------------------------------------------------------------- +// wxList compatibility class: in fact, it's a list of wxObjects +// ---------------------------------------------------------------------------- + +WX_DECLARE_LIST_2(wxObject, wxObjectList, wxObjectListNode, + class WXDLLIMPEXP_BASE); + +class WXDLLIMPEXP_BASE wxList : public wxObjectList +{ +public: +#if defined(wxWARN_COMPAT_LIST_USE) && !wxUSE_STL + wxList() { }; + wxDEPRECATED( wxList(int key_type) ); +#elif !wxUSE_STL + wxList(int key_type = wxKEY_NONE); +#endif + + // this destructor is required for Darwin + ~wxList() { } + +#if !wxUSE_STL + wxList& operator=(const wxList& list) + { (void) wxListBase::operator=(list); return *this; } + + // compatibility methods + void Sort(wxSortCompareFunction compfunc) { wxListBase::Sort(compfunc); } +#endif + +#if wxUSE_STL +#else + wxNode *Member(wxObject *object) const { return (wxNode *)Find(object); } +#endif + +private: +#if !wxUSE_STL + DECLARE_DYNAMIC_CLASS(wxList) +#endif +}; + +#if !wxUSE_STL + +// ----------------------------------------------------------------------------- +// wxStringList class for compatibility with the old code +// ----------------------------------------------------------------------------- +WX_DECLARE_LIST_2(wxChar, wxStringListBase, wxStringListNode, class WXDLLIMPEXP_BASE); + +class WXDLLIMPEXP_BASE wxStringList : public wxStringListBase +{ +public: + // ctors and such + // default +#ifdef wxWARN_COMPAT_LIST_USE + wxStringList(); + wxDEPRECATED( wxStringList(const wxChar *first ...) ); +#else + wxStringList(); + wxStringList(const wxChar *first ...); #endif - // _WX_LISTH__ + + // copying the string list: the strings are copied, too (extremely + // inefficient!) + wxStringList(const wxStringList& other) : wxStringListBase() { DeleteContents(true); DoCopy(other); } + wxStringList& operator=(const wxStringList& other) + { Clear(); DoCopy(other); return *this; } + + // operations + // makes a copy of the string + wxNode *Add(const wxChar *s); + + // Append to beginning of list + wxNode *Prepend(const wxChar *s); + + bool Delete(const wxChar *s); + + wxChar **ListToArray(bool new_copies = false) const; + bool Member(const wxChar *s) const; + + // alphabetic sort + void Sort(); + +private: + void DoCopy(const wxStringList&); // common part of copy ctor and operator= + + DECLARE_DYNAMIC_CLASS(wxStringList) +}; + +#else // if wxUSE_STL + +WX_DECLARE_LIST_XO(wxString, wxStringListBase, class WXDLLIMPEXP_BASE); + +class WXDLLIMPEXP_BASE wxStringList : public wxStringListBase +{ +public: + compatibility_iterator Append(wxChar* s) + { wxString tmp = s; delete[] s; return wxStringListBase::Append(tmp); } + compatibility_iterator Insert(wxChar* s) + { wxString tmp = s; delete[] s; return wxStringListBase::Insert(tmp); } + compatibility_iterator Insert(size_t pos, wxChar* s) + { + wxString tmp = s; + delete[] s; + return wxStringListBase::Insert(pos, tmp); + } + compatibility_iterator Add(const wxChar* s) + { push_back(s); return GetLast(); } + compatibility_iterator Prepend(const wxChar* s) + { push_front(s); return GetFirst(); } +}; + +#endif // wxUSE_STL + +#endif // wxLIST_COMPATIBILITY + +// delete all list elements +// +// NB: the class declaration of the list 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_LIST(type, list) \ + { \ + type::iterator it, en; \ + for( it = (list).begin(), en = (list).end(); it != en; ++it ) \ + delete *it; \ + (list).clear(); \ + } + +#endif // _WX_LISTH__