Refactor wxButton and wxToggleButton to derive from wxAnyButton.

Introduce wxAnyButton class, a common base class for wxButton and
wxToggleButton, allowing to reuse the same implementation for them.

This also allows to implement support for bitmaps in wxToggleButton for all
platforms and make wxBitmapToggleButton a trivial subclass of it everywhere,
similarly to wxBitmapButton and wxButton.

Closes #13198.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@67931 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/anybutton_osx.cpp

@@ -0,0 +1,95 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        src/osx/anybutton_osx.cpp
+// Purpose:     wxAnyButton
+// Author:      Stefan Csomor
+// Created:     1998-01-01 (extracted from button_osx.cpp)
+// RCS-ID:      $Id: anybutton_osx.cpp 67280 2011-03-22 14:17:38Z DS $
+// Copyright:   (c) Stefan Csomor
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#include "wx/wxprec.h"
+
+#include "wx/anybutton.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/panel.h"
+    #include "wx/toplevel.h"
+    #include "wx/dcclient.h"
+    #include "wx/stattext.h"
+#endif
+
+#include "wx/stockitem.h"
+
+#include "wx/osx/private.h"
+
+BEGIN_EVENT_TABLE(wxAnyButton, wxControl)
+    EVT_ENTER_WINDOW(wxAnyButton::OnEnterWindow)
+    EVT_LEAVE_WINDOW(wxAnyButton::OnLeaveWindow)
+END_EVENT_TABLE()
+
+void wxAnyButton::SetLabel(const wxString& label)
+{
+    if ( HasFlag(wxBU_NOTEXT) )
+    {
+        // just store the label internally but don't really use it for the
+        // button
+        m_labelOrig =
+        m_label = label;
+        return;
+    }
+
+    wxAnyButtonBase::SetLabel(label);
+}
+
+wxBitmap wxAnyButton::DoGetBitmap(State which) const
+{
+    return m_bitmaps[which];
+}
+
+void wxAnyButton::DoSetBitmap(const wxBitmap& bitmap, State which)
+{
+    m_bitmaps[which] = bitmap;
+
+    if ( which == State_Normal )
+        GetPeer()->SetBitmap(bitmap);
+    else if ( which == State_Pressed )
+    {
+        wxButtonImpl* bi = dynamic_cast<wxButtonImpl*> (GetPeer());
+        if ( bi )
+            bi->SetPressedBitmap(bitmap);
+    }
+    InvalidateBestSize();
+}
+
+void wxAnyButton::DoSetBitmapPosition(wxDirection dir)
+{
+    GetPeer()->SetBitmapPosition(dir);
+    InvalidateBestSize();
+}
+
+#if wxUSE_MARKUP && wxOSX_USE_COCOA
+
+bool wxAnyButton::DoSetLabelMarkup(const wxString& markup)
+{
+    if ( !wxAnyButtonBase::DoSetLabelMarkup(markup) )
+        return false;
+
+    GetPeer()->SetLabelMarkup(markup);
+
+    return true;
+}
+
+#endif // wxUSE_MARKUP && wxOSX_USE_COCOA
+
+void wxAnyButton::OnEnterWindow( wxMouseEvent& WXUNUSED(event))
+{
+    if ( DoGetBitmap( State_Current ).IsOk() )
+        GetPeer()->SetBitmap( DoGetBitmap( State_Current ) );
+}
+
+void wxAnyButton::OnLeaveWindow( wxMouseEvent& WXUNUSED(event))
+{
+    if ( DoGetBitmap( State_Current ).IsOk() )
+        GetPeer()->SetBitmap( DoGetBitmap( State_Normal ) );
+}