]> git.saurik.com Git - wxWidgets.git/blobdiff - include/wx/list.h
Reworked the undef stuff a little
[wxWidgets.git] / include / wx / list.h
index b5789828662db1b3244ad35185aa4cd2e8b574fa..01eddf8190c42140e75a4fbb582d68f4c9b78ccb 100644 (file)
@@ -6,7 +6,7 @@
 // Created:     29/01/98
 // RCS-ID:      $Id$
 // Copyright:   (c) 1998 Julian Smart
-// Licence:       wxWindows license
+// Licence:     wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
 /*
@@ -40,7 +40,7 @@
 
 // due to circular header dependencies this function has to be declared here
 // (normally it's found in utils.h which includes itself list.h...)
-extern WXDLLEXPORT char* copystring(const char *s);
+extern WXDLLEXPORT wxChar* copystring(const wxChar *s);
 
 class WXDLLEXPORT wxObjectListNode;
 typedef wxObjectListNode wxNode;
@@ -77,7 +77,7 @@ typedef int (*wxListIterateFunction)(void *current);
 union wxListKeyValue
 {
     long integer;
-    char *string;
+    wxChar *string;
 };
 
 // a struct which may contain both types of keys
@@ -94,14 +94,14 @@ public:
         { m_keyType = wxKEY_NONE; }
     wxListKey(long i)
         { m_keyType = wxKEY_INTEGER; m_key.integer = i; }
-    wxListKey(const char *s)
-        { m_keyType = wxKEY_STRING; m_key.string = strdup(s); }
+    wxListKey(const wxChar *s)
+        { m_keyType = wxKEY_STRING; m_key.string = wxStrdup(s); }
     wxListKey(const wxString& s)
-        { m_keyType = wxKEY_STRING; m_key.string = strdup(s.c_str()); }
+        { m_keyType = wxKEY_STRING; m_key.string = wxStrdup(s.c_str()); }
 
     // accessors
     wxKeyType GetKeyType() const { return m_keyType; }
-    const char *GetString() const
+    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; }
@@ -142,12 +142,12 @@ public:
 
     virtual ~wxNodeBase();
 
-    // @@ no check is done that the list is really keyed on strings
-    const char *GetKeyString() const { return m_key.string; }
+    // 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(char* s) { m_key.string = s; }
+    void SetKeyString(wxChar* s) { m_key.string = s; }
     void SetKeyInteger(long i) { m_key.integer = i; }
 
 #ifdef wxLIST_COMPATIBILITY
@@ -197,17 +197,17 @@ public:
     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; }
@@ -216,6 +216,13 @@ public:
     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
@@ -265,7 +272,7 @@ protected:
 
         // keyed append
     wxNodeBase *Append(long key, void *object);
-    wxNodeBase *Append(const char *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)
@@ -294,7 +301,7 @@ protected:
     void *FirstThat(wxListIterateFunction func);
     void ForEach(wxListIterateFunction func);
     void *LastThat(wxListIterateFunction func);
-    
+
 private:
     // helpers
         // common part of all ctors
@@ -332,8 +339,16 @@ private:
 //  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.
-
-#define WX_DECLARE_LIST_2(T, name, nodetype)                                \
+//
+//  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                          \
@@ -343,7 +358,7 @@ private:
                  nodetype *previous = (nodetype *)NULL,                     \
                  nodetype *next = (nodetype *)NULL,                         \
                  T *data = (T *)NULL,                                       \
-                 const wxListKey& key = wxDefaultListKey)                        \
+                 const wxListKey& key = wxDefaultListKey)                   \
             : wxNodeBase(list, previous, next, data, key) { }               \
                                                                             \
         nodetype *GetNext() const                                           \
@@ -359,7 +374,7 @@ private:
         virtual void DeleteData();                                          \
     };                                                                      \
                                                                             \
-    class WXDLLEXPORT name : public wxListBase                                          \
+    class WXDLLEXPORT name : public wxListBase                              \
     {                                                                       \
     public:                                                                 \
         typedef nodetype Node;                                              \
@@ -383,32 +398,32 @@ private:
             return node ? (T*)(node->GetData()) : (T*)NULL;                 \
         }                                                                   \
                                                                             \
-        nodetype *Append(T *object)                                         \
+        nodetype *Append(Tbase *object)                                     \
             { return (nodetype *)wxListBase::Append(object); }              \
-        nodetype *Insert(T *object)                                         \
+        nodetype *Insert(Tbase *object)                                     \
             { return (nodetype *)Insert((nodetype*)NULL, object); }         \
-        nodetype *Insert(nodetype *prev, T *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 char *key, void *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(T *object)                                        \
+        bool DeleteObject(Tbase *object)                                    \
             { return wxListBase::DeleteObject(object); }                    \
                                                                             \
-        nodetype *Find(T *object) const                                     \
+        nodetype *Find(Tbase *object) const                                 \
             { return (nodetype *)wxListBase::Find(object); }                \
                                                                             \
         virtual nodetype *Find(const wxListKey& key) const                  \
             { return (nodetype *)wxListBase::Find(key); }                   \
                                                                             \
-        int IndexOf( T *object ) const                                      \
+        int IndexOf(Tbase *object) const                                    \
             { return wxListBase::IndexOf(object); }                         \
                                                                             \
         void Sort(wxSortFuncFor_##name func)                                \
@@ -417,7 +432,7 @@ private:
     protected:                                                              \
         wxNodeBase *CreateNode(wxNodeBase *prev, wxNodeBase *next,          \
                                void *data,                                  \
-                               const wxListKey& key = wxDefaultListKey)          \
+                               const wxListKey& key = wxDefaultListKey)     \
             {                                                               \
                 return new nodetype(this,                                   \
                                     (nodetype *)prev, (nodetype *)next,     \
@@ -425,6 +440,9 @@ private:
             }                                                               \
     }
 
+#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)
@@ -433,11 +451,14 @@ private:
 //      #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
 
 // -----------------------------------------------------------------------------
@@ -454,10 +475,6 @@ public:
     // compatibility methods
     void Sort(wxSortCompareFunction compfunc) { wxListBase::Sort(compfunc); }
 
-    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); }
     wxNode *Member(wxObject *object) const { return (wxNode *)Find(object); }
 };
 
@@ -465,7 +482,7 @@ public:
 // wxStringList class for compatibility with the old code
 // -----------------------------------------------------------------------------
 
-WX_DECLARE_LIST_2(char, wxStringListBase, wxStringListNode);
+WX_DECLARE_LIST_2(wxChar, wxStringListBase, wxStringListNode);
 
 class WXDLLEXPORT wxStringList : public wxStringListBase
 {
@@ -473,7 +490,7 @@ public:
     // ctors and such
         // default
     wxStringList() { DeleteContents(TRUE); }
-    wxStringList(const char *first ...);
+    wxStringList(const wxChar *first ...);
 
         // copying the string list: the strings are copied, too (extremely
         // inefficient!)
@@ -483,23 +500,17 @@ public:
 
     // operations
         // makes a copy of the string
-    wxNode *Add(const char *s)
+    wxNode *Add(const wxChar *s)
         { return (wxNode *)wxStringListBase::Append(copystring(s)); }
 
-    bool Delete(const char *s);
+    bool Delete(const wxChar *s);
 
-    char **ListToArray(bool new_copies = FALSE) const;
-    bool Member(const char *s) const;
+    wxChar **ListToArray(bool new_copies = FALSE) const;
+    bool Member(const wxChar *s) const;
 
     // alphabetic sort
     void Sort();
 
-    // compatibility methods
-    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); }
-
 private:
     void DoCopy(const wxStringList&); // common part of copy ctor and operator=
 };