+ // operations
+ // delete all nodes
+ virtual void Clear();
+ // instruct it to destroy user data when deleting nodes
+ void DeleteContents(bool destroy) { m_destroy = destroy; }
+
+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 = wxListKey()) = 0;
+
+ // ctors
+ // from an array
+ wxListBase(size_t count, void *elements[]);
+ // from a sequence of objects
+ wxListBase(void *object, ... /* terminate with NULL */);
+
+ // 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() : 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(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 char *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;
+
+ // 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(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);
+ // 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-dervied 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 not type-safe wxList functions withtype-safe versions
+// which don't take any place (everything is inline), but bring compile
+// time error checking.
+
+#define WX_DECLARE_LIST_2(T, 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 = NULL, \
+ const wxListKey& key = wxListKey()) \
+ : 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 name : public wxListBase \
+ { \
+ public: \
+ 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 ? node->GetData() : NULL; \
+ } \
+ \
+ nodetype *Append(T *object) \
+ { return (nodetype *)wxListBase::Append(object); } \
+ nodetype *Insert(T *object) \
+ { return (nodetype *)Insert(NULL, object); } \
+ nodetype *Insert(nodetype *prev, T *object) \
+ { return (nodetype *)wxListBase::Insert(prev, object); } \
+ \
+ nodetype *Append(long key, void *object) \
+ { return (nodetype *)wxListBase::Append(key, object); } \
+ nodetype *Append(const char *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(T *object) \
+ { return wxListBase::DeleteObject(object); } \
+ \
+ nodetype *Find(T *object) const \
+ { return (nodetype *)wxListBase::Find(object); } \
+ \
+ virtual nodetype *Find(const wxListKey& key) const \
+ { return (nodetype *)wxListBase::Find(key); } \
+ \
+ void Sort(wxSortFuncFor_##name func) \
+ { wxListBase::Sort((wxSortCompareFunction)func); } \
+ \
+ protected: \
+ wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next, \
+ void *data, \
+ const wxListKey& key = wxListKey()) \
+ { \
+ return new nodetype(this, \
+ (nodetype *)prev, (nodetype *)next, \
+ (T *)data, key); \
+ } \
+ }
+
+#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
+// =============================================================================
+
+#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
projects / wxWidgets.git / commitdiff
