Adding wrapper for CFArray, updating other wrappers

include/wx/osx/core/cfarray.h

@@ -0,0 +1,110 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/osx/core/cfarrayref.h
+// Purpose:     wxCFArrayRef class
+// Author:      Stefan Csomor
+// Modified by:
+// Created:     2018/07/27
+// Copyright:   (c) 2018 Stefan Csomor
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+/*! @header     wx/osx/core/cfarrayref.h
+ @abstract   wxCFArrayRef class
+ */
+
+#ifndef _WX_OSX_COREFOUNDATION_CFARRAYREF_H__
+#define _WX_OSX_COREFOUNDATION_CFARRAYREF_H__
+
+#include "wx/osx/core/cfref.h"
+#include "wx/osx/core/cftype.h"
+
+#include <CoreFoundation/CFArray.h>
+
+template <typename T, typename E>
+class wxCFArrayRefCommon : public wxCFRef<T>
+{
+public:
+    typedef wxCFRef<T> super_type;
+    typedef size_t size_type;
+
+    wxCFArrayRefCommon(T r)
+        : super_type(r)
+    {
+    }
+
+    wxCFArrayRefCommon(const wxCFArrayRefCommon& otherRef)
+        : super_type(otherRef)
+    {
+    }
+
+    size_type size() const
+    {
+        return (size_type)CFArrayGetCount(this->m_ptr);
+    }
+
+    bool empty() const
+    {
+        return size() == 0;
+    }
+
+    wxCFRef<E> at(size_type idx)
+    {
+        wxASSERT(idx < size());
+
+        CFTypeRef val = CFArrayGetValueAtIndex(this->m_ptr, idx);
+        if (val)
+            ::CFRetain(val);
+        return wxCFRefFromGet<E>(val);
+    }
+
+    wxCFRef<E> operator[](size_type idx) { return at(idx); }
+    wxCFRef<E> front() { return at(0); }
+    wxCFRef<E> back() { return at(size() - 1); }
+};
+
+
+template <typename E>
+class wxCFArrayRef : public wxCFArrayRefCommon<CFArrayRef, E>
+{
+public:
+    wxCFArrayRef(CFArrayRef r)
+        : wxCFArrayRefCommon<CFArrayRef, E>(r)
+    {
+    }
+
+    wxCFArrayRef(const wxCFArrayRef& otherRef)
+        : wxCFArrayRefCommon<CFArrayRef, E>(otherRef)
+    {
+    }
+};
+
+template <typename E>
+class wxCFMutableArrayRef : public wxCFArrayRefCommon<CFMutableArrayRef, E>
+{
+public:
+    wxCFMutableArrayRef()
+        : wxCFArrayRefCommon<CFMutableArrayRef, E>(CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks))
+    {
+    }
+
+    wxCFMutableArrayRef(CFMutableArrayRef r)
+        : wxCFArrayRefCommon<CFMutableArrayRef, E>(r)
+    {
+    }
+
+    wxCFMutableArrayRef(const wxCFMutableArrayRef& otherRef)
+        : wxCFArrayRefCommon<CFMutableArrayRef, E>(otherRef)
+    {
+    }
+
+    void push_back(E v)
+    {
+        CFArrayAppendValue(this->m_ptr, v);
+    }
+
+    void clear()
+    {
+        CFArrayRemoveAllValues(this->m_ptr);
+    }
+};
+
+#endif //ifndef _WX_OSX_COREFOUNDATION_CFARRAYREF_H__