File/dir dialog styles and other changes (patch 1488371):

- check invalid combinations of styles in wxFileDialogBase::Create()
- use wxFD_XXX naming convention for wxFileDialog styles
- replaces wxDD_NEW_DIR_BUTTON with wxDD_DIR_MUST_EXIST
- removes #ifdef __WXGTK24__ / #endif blocks from wxGTK code
- removes wxFileDialogBase::Get/SetStyle and wxFileDialogBase::m_fileName
- renames wxDirDialogGTK to wxDirDialog


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39402 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/mobile/wxedit/wxedit.cpp

@@ -220,7 +220,7 @@ void MyFrame::OnOpen( wxCommandEvent& WXUNUSED(event) )
 
     wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,
         _T("Text file (*.txt)|*.txt|Any file (*)|*"),
-        wxOPEN|wxFILE_MUST_EXIST );
+        wxFD_OPEN|wxFD_FILE_MUST_EXIST );
     if (dialog.ShowModal() == wxID_OK)
     {
         m_text->Clear();
@@ -275,7 +275,7 @@ void MyFrame::OnSaveAs( wxCommandEvent& WXUNUSED(event) )
 #if wxUSE_FILEDLG
     wxFileDialog dialog( this, _T("Open text"), wxEmptyString, wxEmptyString,
         _T("Text file (*.txt)|*.txt|Any file (*)|*"),
-        wxSAVE|wxOVERWRITE_PROMPT );
+        wxFD_SAVE|wxFD_OVERWRITE_PROMPT );
     if (dialog.ShowModal() == wxID_OK)
     {
         m_filename = dialog.GetPath();