/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef _CPPCANVAS_BITMAPCANVAS_HXX
#define _CPPCANVAS_BITMAPCANVAS_HXX

#include <sal/types.h>
#include <osl/diagnose.h>

#include <boost/shared_ptr.hpp>
#include <basegfx/vector/b2isize.hxx>
#include <cppcanvas/canvas.hxx>


/* Definition of BitmapCanvas */

namespace cppcanvas
{
    class BitmapCanvas;

    // forward declaration, since cloneBitmapCanvas() also references BitmapCanvas
    typedef ::boost::shared_ptr< BitmapCanvas > BitmapCanvasSharedPtr;

    /** BitmapCanvas interface
     */
    class BitmapCanvas : public virtual Canvas
    {
    public:
        virtual ::basegfx::B2ISize      getSize() const = 0;

        // shared_ptr does not allow for covariant return types
        BitmapCanvasSharedPtr           cloneBitmapCanvas() const
        {
            BitmapCanvasSharedPtr p( ::boost::dynamic_pointer_cast< BitmapCanvas >(this->clone()) );
            OSL_ENSURE(p.get(), "BitmapCanvas::cloneBitmapCanvas(): dynamic cast failed");
            return p;
        }
    };

}

#endif /* _CPPCANVAS_BITMAPCANVAS_HXX */

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