make sure invisible windows cannot paint using a wxClientDC or wxWindowDC by making their clip rect empty
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@53844 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
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@@ -128,6 +128,9 @@ wxWindowDC::wxWindowDC(wxWindow *window)
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#if wxMAC_USE_CORE_GRAPHICS
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m_window->GetSize( &m_width , &m_height);
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if ( !m_window->IsShownOnScreen() )
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m_width = m_height = 0;
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CGContextRef cg = (CGContextRef) window->MacGetCGContextRef();
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m_release = false;
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if ( cg == NULL )
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@@ -246,6 +249,8 @@ wxClientDC::wxClientDC(wxWindow *window) :
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wxCHECK_RET( window, _T("invalid window in wxClientDC") );
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wxPoint origin = window->GetClientAreaOrigin() ;
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m_window->GetClientSize( &m_width , &m_height);
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if ( !m_window->IsShownOnScreen() )
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m_width = m_height = 0;
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SetDeviceOrigin( origin.x, origin.y );
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SetClippingRegion( 0 , 0 , m_width , m_height ) ;
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}
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