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       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 _CPPCANVAS_BITMAPCANVAS_HXX
      21             : #define _CPPCANVAS_BITMAPCANVAS_HXX
      22             : 
      23             : #include <sal/types.h>
      24             : #include <osl/diagnose.h>
      25             : 
      26             : #include <boost/shared_ptr.hpp>
      27             : #include <basegfx/vector/b2isize.hxx>
      28             : #include <cppcanvas/canvas.hxx>
      29             : 
      30             : 
      31             : /* Definition of BitmapCanvas */
      32             : 
      33             : namespace cppcanvas
      34             : {
      35             :     class BitmapCanvas;
      36             : 
      37             :     // forward declaration, since cloneBitmapCanvas() also references BitmapCanvas
      38             :     typedef ::boost::shared_ptr< BitmapCanvas > BitmapCanvasSharedPtr;
      39             : 
      40             :     /** BitmapCanvas interface
      41             :      */
      42           0 :     class BitmapCanvas : public virtual Canvas
      43             :     {
      44             :     public:
      45             :         virtual ::basegfx::B2ISize      getSize() const = 0;
      46             : 
      47             :         // shared_ptr does not allow for covariant return types
      48             :         BitmapCanvasSharedPtr           cloneBitmapCanvas() const
      49             :         {
      50             :             BitmapCanvasSharedPtr p( ::boost::dynamic_pointer_cast< BitmapCanvas >(this->clone()) );
      51             :             OSL_ENSURE(p.get(), "BitmapCanvas::cloneBitmapCanvas(): dynamic cast failed");
      52             :             return p;
      53             :         }
      54             :     };
      55             : 
      56             : }
      57             : 
      58             : #endif /* _CPPCANVAS_BITMAPCANVAS_HXX */
      59             : 
      60             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */