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Diffstat (limited to 'canvas/source/vcl/windowoutdevholder.hxx')
-rw-r--r-- | canvas/source/vcl/windowoutdevholder.hxx | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/canvas/source/vcl/windowoutdevholder.hxx b/canvas/source/vcl/windowoutdevholder.hxx new file mode 100644 index 000000000000..6108f5ff5536 --- /dev/null +++ b/canvas/source/vcl/windowoutdevholder.hxx @@ -0,0 +1,69 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2008 by Sun Microsystems, Inc. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * $RCSfile: windowoutdevholder.hxx,v $ + * $Revision: 1.2 $ + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX +#define _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX + +#include <com/sun/star/uno/Reference.hxx> +#include <com/sun/star/awt/XWindow.hpp> +#include <vcl/window.hxx> + +#include "outdevprovider.hxx" + +#include <boost/utility.hpp> + +namespace vclcanvas +{ + class WindowOutDevHolder : public OutDevProvider, + private ::boost::noncopyable + { + public: + explicit WindowOutDevHolder( const ::com::sun::star::uno::Reference< + ::com::sun::star::awt::XWindow>& xWin ); + + private: + virtual OutputDevice& getOutDev() { return mrOutputWindow; } + virtual const OutputDevice& getOutDev() const { return mrOutputWindow; } + + // TODO(Q2): Lifetime issue. Though WindowGraphicDeviceBase + // now listenes to the window component, I still consider + // holding a naked reference unsafe here (especially as we + // pass it around via getOutDev). This _only_ works reliably, + // if disposing the SpriteCanvas correctly disposes all + // entities which hold this pointer. + // So: as soon as the protocol inside + // vcl/source/window/window.cxx is broken, that disposes the + // canvas during window deletion, we're riding a dead horse + // here + Window& mrOutputWindow; + }; +} + +#endif /* _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX */ |