Correct spelling, now use Indices

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

diff --git a/include/wx/arrstr.h b/include/wx/arrstr.h
index 7c7b29290c8b4d92b01173c42e0071f6ce47fe61..95b9506fdc82a3a1a066728a7cff7f737a056ad2 100644 (file)
--- a/include/wx/arrstr.h
+++ b/include/wx/arrstr.h
@@ -15,8 +15,18 @@
 #include "wx/defs.h"
 #include "wx/string.h"
 
-WXDLLIMPEXP_BASE int wxCMPFUNC_CONV wxStringSortAscending(wxString*, wxString*);
-WXDLLIMPEXP_BASE int wxCMPFUNC_CONV wxStringSortDescending(wxString*, wxString*);
+// these functions are only used in STL build now but we define them in any
+// case for compatibility with the existing code outside of the library which
+// could be using them
+inline int wxCMPFUNC_CONV wxStringSortAscending(wxString* s1, wxString* s2)
+{
+    return s1->Cmp(*s2);
+}
+
+inline int wxCMPFUNC_CONV wxStringSortDescending(wxString* s1, wxString* s2)
+{
+    return wxStringSortAscending(s2, s1);
+}
 
 #if wxUSE_STL
 
@@ -42,7 +52,8 @@ public:
 
     wxArrayString() { }
     wxArrayString(const wxArrayString& a) : wxArrayStringBase(a) { }
-    wxArrayString(size_t sz, const wxChar** a);
+    wxArrayString(size_t sz, const char** a);
+    wxArrayString(size_t sz, const wchar_t** a);
     wxArrayString(size_t sz, const wxString* a);
 
     int Index(const wxString& str, bool bCase = true, bool bFromEnd = false) const;
@@ -176,7 +187,7 @@ public:
     // sort array elements in alphabetical order (or reversed alphabetical
     // order if reverseOrder parameter is true)
   void Sort(bool reverseOrder = false);
-    // sort array elements using specified comparaison function
+    // sort array elements using specified comparison function
   void Sort(CompareFunction compareFunction);
   void Sort(CompareFunction2 compareFunction);
 
@@ -290,6 +301,13 @@ public:
   void reserve(size_type n) /* base::reserve*/;
   void resize(size_type n, value_type v = value_type());
   size_type size() const { return GetCount(); }
+  void swap(wxArrayString& other)
+  {
+      wxSwap(m_nSize, other.m_nSize);
+      wxSwap(m_nCount, other.m_nCount);
+      wxSwap(m_pItems, other.m_pItems);
+      wxSwap(m_autoSort, other.m_autoSort);
+  }
 
 protected:
   void Init(bool autoSort);             // common part of all ctors
@@ -298,8 +316,6 @@ protected:
 private:
   void Grow(size_t nIncrement = 0);     // makes array bigger if needed
 
-  void DoSort();                        // common part of all Sort() variants
-
   size_t  m_nSize,    // current size of the array
           m_nCount;   // current number of elements
 
@@ -361,4 +377,81 @@ WXDLLIMPEXP_BASE wxArrayString wxSplit(const wxString& str,
                                        const wxChar sep,
                                        const wxChar escape = wxT('\\'));
 
+
+// ----------------------------------------------------------------------------
+// This helper class allows to pass both C array of wxStrings or wxArrayString
+// using the same interface.
+//
+// Use it when you have two methods taking wxArrayString or (int, wxString[]),
+// that do the same thing. This class lets you iterate over input data in the
+// same way whether it is a raw array of strings or wxArrayString.
+//
+// The object does not take ownership of the data -- internally it keeps
+// pointers to the data, therefore the data must be disposed of by user
+// and only after this object is destroyed. Usually it is not a problem as
+// only temporary objects of this class are used.
+// ----------------------------------------------------------------------------
+
+class wxArrayStringsAdapter
+{
+public:
+    // construct an adapter from a wxArrayString
+    wxArrayStringsAdapter(const wxArrayString& strings)
+        : m_type(wxSTRING_ARRAY), m_size(strings.size())
+    {
+        m_data.array = &strings;
+    }
+
+    // construct an adapter from a wxString[]
+    wxArrayStringsAdapter(unsigned int n, const wxString *strings)
+        : m_type(wxSTRING_POINTER), m_size(n)
+    {
+        m_data.ptr = strings;
+    }
+
+    // construct an adapter from a single wxString
+    wxArrayStringsAdapter(const wxString& s)
+        : m_type(wxSTRING_POINTER), m_size(1)
+    {
+        m_data.ptr = &s;
+    }
+
+    // default copy constructor is ok
+
+    // iteration interface
+    size_t GetCount() const { return m_size; }
+    bool IsEmpty() const { return GetCount() == 0; }
+    const wxString& operator[] (unsigned int i) const
+    {
+        wxASSERT_MSG( i < GetCount(), wxT("index out of bounds") );
+        if(m_type == wxSTRING_POINTER)
+            return m_data.ptr[i];
+        return m_data.array->Item(i);
+    }
+    wxArrayString AsArrayString() const
+    {
+        if(m_type == wxSTRING_ARRAY)
+            return *m_data.array;
+        return wxArrayString(GetCount(), m_data.ptr);
+    }
+
+private:
+    // type of the data being held
+    enum wxStringContainerType
+    {
+        wxSTRING_ARRAY,  // wxArrayString
+        wxSTRING_POINTER // wxString[]
+    };
+
+    wxStringContainerType m_type;
+    size_t m_size;
+    union
+    {
+        const wxString *      ptr;
+        const wxArrayString * array;
+    } m_data;
+
+    DECLARE_NO_ASSIGN_CLASS(wxArrayStringsAdapter)
+};
+
 #endif // _WX_ARRSTR_H