don't assert if kind == Item_None in wxSizerItem::IsShown(), this can happen during windows destruction (bug 1216428)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@34700 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -440,7 +440,8 @@ bool wxSizerItem::IsShown() const
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switch ( m_kind )
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switch ( m_kind )
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{
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{
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case Item_None:
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case Item_None:
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wxFAIL_MSG( _T("uninitialized sizer item") );
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// we may be called from CalcMin(), just return false so that we're
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// not used
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break;
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break;
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case Item_Window:
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case Item_Window:
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