/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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 *************************************************************/


#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/io/XStream.hpp>

#include <rtl/ustring.hxx>
class SvMemoryStream;
class GDIMetaFile;
class BitmapEx;

class GraphicHelper
{

	static sal_Bool mergeBitmaps_Impl( const BitmapEx& rBmpEx, const BitmapEx& rOverlay,
				   const Rectangle& rOverlayRect, BitmapEx& rReturn );

	static sal_Bool createThumb_Impl( const GDIMetaFile& rMtf,
				       sal_uInt32 nMaximumExtent,
				       BitmapEx& rBmpEx, 
				       const BitmapEx* pOverlay = NULL,
				       const Rectangle* pOverlayRect = NULL );

public:

	static SvMemoryStream* getFormatStrFromGDI_Impl( const GDIMetaFile* pGDIMeta, sal_uInt32 nFormat );

	static void* getEnhMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta );

	static void* getWinMetaFileFromGDI_Impl( const GDIMetaFile* pGDIMeta, const Size& aMetaSize );

	static sal_Bool supportsMetaFileHandle_Impl();

	static sal_Bool getThumbnailFormatFromGDI_Impl(
			GDIMetaFile* pMetaFile,
			sal_Bool bSigned,
			const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream );

	static sal_Bool getSignedThumbnailFormatFromBitmap_Impl(
			const BitmapEx& aBitmap,
			const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream );

	static sal_uInt16 getThumbnailReplacementIDByFactoryName_Impl( const ::rtl::OUString& aFactoryShortName,
																	sal_Bool bIsTemplate );

	static sal_Bool getThumbnailReplacement_Impl(
			sal_Int32 nResID,
			const ::com::sun::star::uno::Reference< ::com::sun::star::io::XStream >& xStream );

};