libreoffice/cppcanvas/source/wrapper/implcustomsprite.cxx

/*************************************************************************
 *
 *  $RCSfile: implcustomsprite.cxx,v $
 *
 *  $Revision: 1.3 $
 *
 *  last change: $Author: rt $ $Date: 2004-11-26 21:00:36 $
 *
 *  The Contents of this file are made available subject to the terms of
 *  either of the following licenses
 *
 *         - GNU Lesser General Public License Version 2.1
 *         - Sun Industry Standards Source License Version 1.1
 *
 *  Sun Microsystems Inc., October, 2000
 *
 *  GNU Lesser General Public License Version 2.1
 *  =============================================
 *  Copyright 2000 by Sun Microsystems, Inc.
 *  901 San Antonio Road, Palo Alto, CA 94303, USA
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License version 2.1, as published by the Free Software Foundation.
 *
 *  This library 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 for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *  MA  02111-1307  USA
 *
 *
 *  Sun Industry Standards Source License Version 1.1
 *  =================================================
 *  The contents of this file are subject to the Sun Industry Standards
 *  Source License Version 1.1 (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.openoffice.org/license.html.
 *
 *  Software provided under this License is provided on an "AS IS" basis,
 *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
 *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
 *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
 *  See the License for the specific provisions governing your rights and
 *  obligations concerning the Software.
 *
 *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
 *
 *  Copyright: 2000 by Sun Microsystems, Inc.
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): _______________________________________
 *
 *
 ************************************************************************/

#include <implcustomsprite.hxx>
#include <implcanvas.hxx>

using namespace ::com::sun::star;
using namespace ::drafts::com::sun::star;

namespace cppcanvas
{
    namespace internal
    {
        ImplCustomSprite::ImplCustomSprite( const uno::Reference< rendering::XSpriteCanvas >&       rParentCanvas,
                                            const uno::Reference< rendering::XCustomSprite >&       rSprite,
                                            const ImplSpriteCanvas::TransformationArbiterSharedPtr& rTransformArbiter ) :
            ImplSprite( rParentCanvas,
                        uno::Reference< rendering::XSprite >(rSprite,
                                                             uno::UNO_QUERY),
                        rTransformArbiter ),
            mpLastCanvas(),
            mxCustomSprite( rSprite )
        {
            OSL_ENSURE( rParentCanvas.is(), "ImplCustomSprite::ImplCustomSprite(): Invalid canvas" );
            OSL_ENSURE( mxCustomSprite.is(), "ImplCustomSprite::ImplCustomSprite(): Invalid sprite" );
        }

        ImplCustomSprite::~ImplCustomSprite()
        {
        }

        CanvasSharedPtr ImplCustomSprite::getContentCanvas() const
        {
            OSL_ENSURE( mxCustomSprite.is(), "ImplCustomSprite::getContentCanvas(): Invalid sprite" );

            if( !mxCustomSprite.is() )
                return CanvasSharedPtr();

            uno::Reference< rendering::XCanvas > xCanvas( mxCustomSprite->getContentCanvas() );

            if( !xCanvas.is() )
                return CanvasSharedPtr();

            // cache content canvas C++ wrapper
            if( mpLastCanvas.get() == NULL ||
                mpLastCanvas->getUNOCanvas() != xCanvas )
            {
                mpLastCanvas = CanvasSharedPtr( new ImplCanvas( xCanvas ) );
            }

            return mpLastCanvas;
        }
    }
}