+// -----------------------------------------------------------------------------
+// a double-linked list class
+// -----------------------------------------------------------------------------
+class WXDLLEXPORT wxListBase : public wxObject
+{
+friend class wxNodeBase; // should be able to call DetachNode()
+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; }
+
+ // 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
+ int Number() const { return GetCount(); }
+ wxNode *First() const { return (wxNode *)GetFirst(); }
+ wxNode *Last() const { return (wxNode *)GetLast(); }
+ wxNode *Nth(size_t index) const { return (wxNode *)Item(index); }
+#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:
+ // copy ctor and assignment operator
+ wxListBase(const wxListBase& list)
+ { DoCopy(list); }
+ wxListBase& operator=(const wxListBase& list)
+ { Clear(); DoCopy(list); return *this; }
+
+ // 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 index) const
+ { wxNodeBase *node = Item(index); return node ? node->GetData() : (wxNodeBase*)NULL; }
+
+ // operations
+ // append to end 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 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(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);
+
+private:
+ // helpers
+ // common part of all ctors
+ void Init(wxKeyType keyType = wxKEY_NONE);
+ // 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.
+
+#define WX_DECLARE_LIST_3(T, Tbase, name, nodetype) \
+ typedef int (*wxSortFuncFor_##name)(const T **, const T **); \
+ \
+ class WXDLLEXPORT 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); } \
+ \
+ virtual void DeleteData(); \
+ }; \
+ \
+ class WXDLLEXPORT name : public wxListBase \
+ { \
+ public: \
+ typedef nodetype Node; \
+ \
+ name(wxKeyType keyType = wxKEY_NONE) : wxListBase(keyType) \
+ { } \
+ name(size_t count, T *elements[]) \
+ : wxListBase(count, (void **)elements) { } \
+ \
+ 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(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); } \
+ \
+ nodetype *Find(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(wxSortFuncFor_##name func) \
+ { wxListBase::Sort((wxSortCompareFunction)func); } \
+ \
+ protected: \
+ wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next, \
+ void *data, \
+ const wxListKey& key = wxDefaultListKey) \
+ { \
+ return new nodetype(this, \
+ (nodetype *)prev, (nodetype *)next, \
+ (T *)data, key); \
+ } \
+ }
+
+#define WX_DECLARE_LIST_2(elementtype, listname, nodename) \
+ WX_DECLARE_LIST_3(elementtype, elementtype, listname, nodename)
+
+#define WX_DECLARE_LIST(elementtype, listname) \
+ typedef elementtype _WX_LIST_ITEM_TYPE_##listname; \
+ WX_DECLARE_LIST_2(elementtype, listname, wx##listname##Node)
+
+// 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!"
+
+// =============================================================================
+// now we can define classes 100% compatible with the old ones
+// =============================================================================
+
+// ----------------------------------------------------------------------------
+// commonly used list classes
+// ----------------------------------------------------------------------------
+
+#ifdef wxLIST_COMPATIBILITY
+
+// -----------------------------------------------------------------------------
+// wxList compatibility class: in fact, it's a list of wxObjects
+// -----------------------------------------------------------------------------
+
+WX_DECLARE_LIST_2(wxObject, wxObjectList, wxObjectListNode);
+
+class WXDLLEXPORT wxList : public wxObjectList
+{
+public:
+ wxList(int key_type = wxKEY_NONE) : wxObjectList((wxKeyType)key_type) { }
+
+ // compatibility methods
+ void Sort(wxSortCompareFunction compfunc) { wxListBase::Sort(compfunc); }
+
+ wxNode *Member(wxObject *object) const { return (wxNode *)Find(object); }
+};
+
+// -----------------------------------------------------------------------------
+// wxStringList class for compatibility with the old code
+// -----------------------------------------------------------------------------
+
+WX_DECLARE_LIST_2(wxChar, wxStringListBase, wxStringListNode);
+
+class WXDLLEXPORT wxStringList : public wxStringListBase
+{
+public:
+ // ctors and such
+ // default
+ wxStringList() { DeleteContents(TRUE); }
+ wxStringList(const wxChar *first ...);
+
+ // copying the string list: the strings are copied, too (extremely
+ // inefficient!)
+ wxStringList(const wxStringList& other) { DoCopy(other); }
+ wxStringList& operator=(const wxStringList& other)
+ { Clear(); DoCopy(other); return *this; }
+
+ // operations
+ // makes a copy of the string
+ wxNode *Add(const wxChar *s)
+ { return (wxNode *)wxStringListBase::Append(copystring(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=
+};
+
+#endif // wxLIST_COMPATIBILITY
+
projects / wxWidgets.git / blobdiff