support for using DIBs for wxBitmap implementation (patch 649866)

[wxWidgets.git] / include / wx / list.h

diff --git a/include/wx/list.h b/include/wx/list.h
index ef40e6d6f1de48ad9eb9992c94427b6539837416..ed182de01f3c44ef4a98dd98775b2953605260e1 100644 (file)
--- a/include/wx/list.h
+++ b/include/wx/list.h
@@ -25,7 +25,7 @@
 #ifndef _WX_LISTH__
 #define _WX_LISTH__
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(__APPLE__)
 #pragma interface "list.h"
 #endif
 
@@ -64,7 +64,10 @@ enum wxKeyType
 // 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);
+}
 
 //
 typedef int (* LINKAGEMODE wxListIterateFunction)(void *current);
@@ -89,14 +92,14 @@ class WXDLLEXPORT 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()); }
+    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; }
@@ -128,6 +131,8 @@ private:
 
 WXDLLEXPORT_DATA(extern wxListKey) wxDefaultListKey;
 
+class WXDLLEXPORT wxListBase;
+
 class WXDLLEXPORT wxNodeBase
 {
 friend class wxListBase;
@@ -178,27 +183,34 @@ private:
                 *m_previous;
 
     wxListBase  *m_list;        // list we belong to
+
+    DECLARE_NO_COPY_CLASS(wxNodeBase)
 };
 
 // -----------------------------------------------------------------------------
 // a double-linked list class
 // -----------------------------------------------------------------------------
+
 class WXDLLEXPORT wxListBase : public wxObject
 {
-friend class wxNodeBase;        // should be able to call DetachNode()
+friend class WXDLLEXPORT wxNodeBase; // should be able to call DetachNode()
 friend class wxHashTableBase;   // should be able to call untyped Find()
 private:
         // common part of all ctors
     void Init(wxKeyType keyType = wxKEY_NONE); // Must be declared before it's used (for VC++ 1.5)
 public:
     // default ctor & dtor
-    wxListBase(wxKeyType keyType = wxKEY_NONE) { Init(keyType); }
+    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
@@ -223,7 +235,7 @@ public:
     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 *Nth(size_t n) const { return (wxNode *)Item(n); }
 #endif // wxLIST_COMPATIBILITY
 
 protected:
@@ -262,11 +274,18 @@ protected:
     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; }
+    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); }
@@ -390,7 +409,7 @@ private:
             : wxListBase(count, (void **)elements) { }                      \
                                                                             \
         name& operator=(const name& list)                                   \
-            { return (name&)wxListBase::operator=(list); }                  \
+            { (void) wxListBase::operator=(list); return *this; }           \
                                                                             \
         nodetype *GetFirst() const                                          \
             { return (nodetype *)wxListBase::GetFirst(); }                  \
@@ -493,17 +512,19 @@ class WXDLLEXPORT wxList : public wxObjectList
 {
 public:
     wxList(int key_type = wxKEY_NONE) : wxObjectList((wxKeyType)key_type) { }
-#ifdef __DARWIN__
+    // this destructor is required for Darwin
    ~wxList() { }
-#endif
 
     wxList& operator=(const wxList& list)
-        { return (wxList&)wxListBase::operator=(list); }
+        { (void) wxListBase::operator=(list); return *this; }
 
     // compatibility methods
     void Sort(wxSortCompareFunction compfunc) { wxListBase::Sort(compfunc); }
 
     wxNode *Member(wxObject *object) const { return (wxNode *)Find(object); }
+
+private:
+    DECLARE_DYNAMIC_CLASS(wxList)
 };
 
 // -----------------------------------------------------------------------------
@@ -530,6 +551,10 @@ public:
         // makes a copy of the string
     wxNode *Add(const wxChar *s)
         { return (wxNode *)wxStringListBase::Append(copystring(s)); }
+        
+        // Append to beginning of list
+    wxNode *Prepend(const wxChar *s)
+        { return (wxNode *)wxStringListBase::Insert(copystring(s)); }
 
     bool Delete(const wxChar *s);
 
@@ -541,6 +566,8 @@ public:
 
 private:
     void DoCopy(const wxStringList&); // common part of copy ctor and operator=
+
+    DECLARE_DYNAMIC_CLASS(wxStringList)
 };
 
 #endif // wxLIST_COMPATIBILITY