Commit pickers-fixes.patch added to 1472329 (Francesco Montorsi)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39528 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/filepickercmn.cpp

@@ -55,6 +55,19 @@ bool wxFileDirPickerCtrlBase::CreateBase( wxWindow *parent, wxWindowID id,
                                    style, validator, name))
         return false;
 
+    if (!HasFlag(wxFLP_OPEN) && !HasFlag(wxFLP_SAVE))
+        m_windowStyle |= wxFLP_OPEN;     // wxFD_OPEN is the default
+
+    // check that the styles are not contradictory
+    wxASSERT_MSG( !(HasFlag(wxFLP_SAVE) && HasFlag(wxFLP_OPEN)),
+                  _T("can't specify both wxFLP_SAVE and wxFLP_OPEN at once") );
+
+    wxASSERT_MSG( !HasFlag(wxFLP_SAVE) || !HasFlag(wxFLP_FILE_MUST_EXIST),
+                   _T("wxFLP_FILE_MUST_EXIST can't be used with wxFLP_SAVE" ) );
+
+    wxASSERT_MSG( !HasFlag(wxFLP_OPEN) || !HasFlag(wxFLP_OVERWRITE_PROMPT),
+                  _T("wxFLP_OVERWRITE_PROMPT can't be used with wxFLP_OPEN") );
+
     // create a wxFilePickerWidget or a wxDirPickerWidget...
     if (!CreatePicker(this, path, message, wildcard))
         return false;