Add wxPreferencesEditor class.

Implements native UI for preferences editing.  In particular, the API
handles the differences between modal (Windows) and non-modal (OS X) preferences windows and provides platform's native look.

Currently implemented natively for wxOSX/Cocoa, wxGTK and Windows (the latter is used as a fallback generic implementation as well).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73576 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/preferencescmn.cpp

@@ -0,0 +1,69 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        src/common/preferencescmn.cpp
+// Purpose:     wxPreferencesEditor implementation common to all platforms.
+// Author:      Vaclav Slavik
+// Created:     2013-02-19
+// RCS-ID:      $Id$
+// Copyright:   (c) 2013 Vaclav Slavik <vslavik@fastmail.fm>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+// for compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#include "wx/private/preferences.h"
+#include "wx/intl.h"
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+wxString wxStockPreferencesPage::GetName() const
+{
+    switch ( m_kind )
+    {
+        case Kind_General:
+            return _("General");
+        case Kind_Advanced:
+            return _("Advanced");
+    }
+    return wxString(); // silence compiler warning
+}
+
+wxPreferencesEditor::wxPreferencesEditor()
+    : m_impl(wxPreferencesEditorImpl::Create())
+{
+}
+
+wxPreferencesEditor::~wxPreferencesEditor()
+{
+    delete m_impl;
+}
+
+void wxPreferencesEditor::AddPage(wxPreferencesPage* page)
+{
+    wxCHECK_RET( page, "can't set NULL page" );
+    m_impl->AddPage(page);
+}
+
+void wxPreferencesEditor::Show(wxWindow* parent)
+{
+    m_impl->Show(parent);
+}
+
+void wxPreferencesEditor::Dismiss()
+{
+    m_impl->Dismiss();
+}