don't duplicate wxItemContainer methods in wxRadioBoxBase, instead extract the common intersection to a new wxItemContainerImmutable class and derive wxRadioBoxBase from it

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32008 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/ctrlsub.h

@@ -24,11 +24,50 @@
 // wxItemContainer defines an interface which is implemented by all controls
 // which have string subitems each of which may be selected.
 //
+// It is decomposed in wxItemContainerImmutable which omits all methods
+// adding/removing items and is used by wxRadioBox and wxItemContainer itself.
+//
 // Examples: wxListBox, wxCheckListBox, wxChoice and wxComboBox (which
 // implements an extended interface deriving from this one)
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxItemContainer
+class WXDLLEXPORT wxItemContainerImmutable
+{
+public:
+    wxItemContainerImmutable() { }
+    virtual ~wxItemContainerImmutable();
+
+    // accessing strings
+    // -----------------
+
+    virtual int GetCount() const = 0;
+    bool IsEmpty() const { return GetCount() == 0; }
+
+    virtual wxString GetString(int n) const = 0;
+    wxArrayString GetStrings() const;
+    virtual void SetString(int n, const wxString& s) = 0;
+    virtual int FindString(const wxString& s) const = 0;
+
+
+    // selection
+    // ---------
+
+    virtual void SetSelection(int n) = 0;
+    virtual int GetSelection() const = 0;
+
+    // set selection to the specified string, return false if not found
+    bool SetStringSelection(const wxString& s);
+
+    // return the selected string or empty string if none
+    wxString GetStringSelection() const;
+
+    // this is the same as SetSelection( for single-selection controls but
+    // reads better for multi-selection ones
+    void Select(int n) { SetSelection(n); }
+
+};
+
+class WXDLLEXPORT wxItemContainer : public wxItemContainerImmutable
 {
 public:
     wxItemContainer() { m_clientDataItemsType = wxClientData_None; }
@@ -62,33 +101,6 @@ public:
     virtual void Clear() = 0;
     virtual void Delete(int n) = 0;
 
-    // accessing strings
-    // -----------------
-
-    virtual int GetCount() const = 0;
-    bool IsEmpty() const { return GetCount() == 0; }
-
-    virtual wxString GetString(int n) const = 0;
-    wxArrayString GetStrings() const;
-    virtual void SetString(int n, const wxString& s) = 0;
-    virtual int FindString(const wxString& s) const = 0;
-
-    // selection
-    // ---------
-
-    virtual void SetSelection(int n) = 0;
-    virtual int GetSelection() const = 0;
-
-    // set selection to the specified string, return false if not found
-    bool SetStringSelection(const wxString& s);
-
-    // return the selected string or empty string if none
-    wxString GetStringSelection() const;
-
-    // this is the same as SetSelection( for single-selection controls but
-    // reads better for multi-selection ones
-    void Select(int n) { SetSelection(n); }
-
     // misc
     // ----
 

include/wx/radiobox.h

@@ -18,7 +18,7 @@
 
 #if wxUSE_RADIOBOX
 
-#include "wx/control.h"
+#include "wx/ctrlsub.h"
 
 extern WXDLLEXPORT_DATA(const wxChar*) wxRadioBoxNameStr;
 
@@ -28,53 +28,9 @@ extern WXDLLEXPORT_DATA(const wxChar*) wxRadioBoxNameStr;
 // example, it is a wxStaticBox in wxUniv and wxMSW but not in other ports
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxRadioBoxBase
+class WXDLLEXPORT wxRadioBoxBase : public wxItemContainerImmutable
 {
 public:
-    // selection
-    virtual void SetSelection(int n) = 0;
-    virtual int GetSelection() const = 0;
-
-    virtual wxString GetStringSelection() const
-    {
-        wxString s;
-        int sel = GetSelection();
-        if ( sel != wxNOT_FOUND )
-            s = GetString(sel);
-
-        return s;
-    }
-
-    virtual bool SetStringSelection(const wxString& s)
-    {
-        int sel = FindString(s);
-        if ( sel != wxNOT_FOUND )
-        {
-            SetSelection(sel);
-
-            return true;
-        }
-
-        return false;
-    }
-
-    // string access
-    virtual int GetCount() const = 0;
-    virtual int FindString(const wxString& s) const
-    {
-        int count = GetCount();
-        for ( int n = 0; n < count; n++ )
-        {
-            if ( GetString(n) == s )
-                return n;
-        }
-
-        return wxNOT_FOUND;
-    }
-
-    virtual wxString GetString(int n) const = 0;
-    virtual void SetString(int n, const wxString& label) = 0;
-
     // change the individual radio button state
     virtual void Enable(int n, bool enable = true) = 0;
     virtual void Show(int n, bool show = true) = 0;
@@ -87,6 +43,9 @@ public:
     int GetNextItem(int item, wxDirection dir, long style) const;
 
 
+    // implement some of wxItemContainerImmutable functions
+    virtual int FindString(const wxString& s) const;
+
     // deprecated functions
     // --------------------
 

src/common/ctrlsub.cpp

@@ -36,10 +36,10 @@
 #endif
 
 // ============================================================================
-// implementation
+// wxItemContainerImmutable implementation
 // ============================================================================
 
-wxItemContainer::~wxItemContainer()
+wxItemContainerImmutable::~wxItemContainerImmutable()
 {
     // this destructor is required for Darwin
 }
@@ -48,7 +48,7 @@ wxItemContainer::~wxItemContainer()
 // selection
 // ----------------------------------------------------------------------------
 
-wxString wxItemContainer::GetStringSelection() const
+wxString wxItemContainerImmutable::GetStringSelection() const
 {
     wxString s;
     int sel = GetSelection();
@@ -58,7 +58,7 @@ wxString wxItemContainer::GetStringSelection() const
     return s;
 }
 
-bool wxItemContainer::SetStringSelection(const wxString& s)
+bool wxItemContainerImmutable::SetStringSelection(const wxString& s)
 {
     const int sel = FindString(s);
     if ( sel == wxNOT_FOUND )
@@ -69,13 +69,25 @@ bool wxItemContainer::SetStringSelection(const wxString& s)
     return true;
 }
 
-wxArrayString wxItemContainer::GetStrings() const
+wxArrayString wxItemContainerImmutable::GetStrings() const
 {
-    wxArrayString result ;
-    size_t count = GetCount() ;
-    for ( size_t n = 0 ; n < count ; n++ )
+    wxArrayString result;
+
+    const size_t count = GetCount();
+    result.Alloc(count);
+    for ( size_t n = 0; n < count; n++ )
         result.Add(GetString(n));
-    return result ;
+
+    return result;
+}
+
+// ============================================================================
+// wxItemContainer implementation
+// ============================================================================
+
+wxItemContainer::~wxItemContainer()
+{
+    // this destructor is required for Darwin
 }
 
 // ----------------------------------------------------------------------------

src/common/radiocmn.cpp

@@ -38,6 +38,18 @@
 // implementation
 // ============================================================================
 
+int wxRadioBoxBase::FindString(const wxString& s) const
+{
+    int count = GetCount();
+    for ( int n = 0; n < count; n++ )
+    {
+        if ( GetString(n) == s )
+            return n;
+    }
+
+    return wxNOT_FOUND;
+}
+
 int wxRadioBoxBase::GetNextItem(int item, wxDirection dir, long style) const
 {
     int count = GetCount(),