Branch data     Line data    Source code

       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #ifndef _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX
      21                 :            : #define _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX
      22                 :            : 
      23                 :            : #include <com/sun/star/uno/Reference.hxx>
      24                 :            : #include <com/sun/star/awt/XWindow.hpp>
      25                 :            : #include <vcl/window.hxx>
      26                 :            : 
      27                 :            : #include "outdevprovider.hxx"
      28                 :            : 
      29                 :            : #include <boost/utility.hpp>
      30                 :            : 
      31                 :            : namespace vclcanvas
      32                 :            : {
      33                 :          0 :     class WindowOutDevHolder : public OutDevProvider,
      34                 :            :                                private ::boost::noncopyable
      35                 :            :     {
      36                 :            :     public:
      37                 :            :         explicit WindowOutDevHolder( const ::com::sun::star::uno::Reference<
      38                 :            :                                            ::com::sun::star::awt::XWindow>& xWin );
      39                 :            : 
      40                 :            :     private:
      41                 :          0 :         virtual OutputDevice&       getOutDev() { return mrOutputWindow; }
      42                 :          0 :         virtual const OutputDevice& getOutDev() const { return mrOutputWindow; }
      43                 :            : 
      44                 :            :         // TODO(Q2): Lifetime issue. Though WindowGraphicDeviceBase
      45                 :            :         // now listenes to the window component, I still consider
      46                 :            :         // holding a naked reference unsafe here (especially as we
      47                 :            :         // pass it around via getOutDev). This _only_ works reliably,
      48                 :            :         // if disposing the SpriteCanvas correctly disposes all
      49                 :            :         // entities which hold this pointer.
      50                 :            :         // So: as soon as the protocol inside
      51                 :            :         // vcl/source/window/window.cxx is broken, that disposes the
      52                 :            :         // canvas during window deletion, we're riding a dead horse
      53                 :            :         // here
      54                 :            :         Window& mrOutputWindow;
      55                 :            :     };
      56                 :            : }
      57                 :            : 
      58                 :            : #endif /* _VCLCANVAS_WINDOWOUTDEVHOLDER_HXX */
      59                 :            : 
      60                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */