/*************************************************************************
 *
 *  OpenOffice.org - a multi-platform office productivity suite
 *
 *  $RCSfile: xmloff_backhdl.cxx,v $
 *
 *  $Revision: 1.5 $
 *
 *  last change: $Author: rt $ $Date: 2006/10/28 02:00:52 $
 *
 *  The Contents of this file are made available subject to
 *  the terms of GNU Lesser General Public License Version 2.1.
 *
 *
 *    GNU Lesser General Public License Version 2.1
 *    =============================================
 *    Copyright 2005 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
 *
 ************************************************************************/

#ifndef _TOOLS_DEBUG_HXX 
#include <tools/debug.hxx>
#endif

#ifndef _XMLOFF_PROPERTYHANDLER_BRUSHTYPES_HXX
#include <backhdl.hxx>
#endif


#ifndef _XMLOFF_XMLUCONV_HXX 
#include "xmluconv.hxx"
#endif


#ifndef _RTL_USTRBUF_HXX_ 
#include <rtl/ustrbuf.hxx>
#endif

namespace binfilter {

using namespace ::rtl;
using namespace ::com::sun::star;
using namespace ::binfilter::xmloff::token;

SvXMLEnumMapEntry pXML_BrushHorizontalPos[] =
{
	{ XML_LEFT,		        style::GraphicLocation_LEFT_MIDDLE	 },
	{ XML_RIGHT,		    style::GraphicLocation_RIGHT_MIDDLE },
	{ XML_TOKEN_INVALID,    0		}
};

SvXMLEnumMapEntry pXML_BrushVerticalPos[] =
{
	{ XML_TOP,			    style::GraphicLocation_MIDDLE_TOP	},
	{ XML_BOTTOM,		    style::GraphicLocation_MIDDLE_BOTTOM	},
	{ XML_TOKEN_INVALID,    0		}
};

///////////////////////////////////////////////////////////////////////////////
//
// class XMLBackGraphicPositionPropHdl
//

XMLBackGraphicPositionPropHdl::~XMLBackGraphicPositionPropHdl()
{
	// Nothing to do
}

sal_Bool XMLBackGraphicPositionPropHdl::importXML( const OUString& rStrImpValue, uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter )
{ 
	sal_Bool bRet = sal_True;
	style::GraphicLocation ePos = style::GraphicLocation_NONE, eTmp;
	sal_uInt16 nTmp;
	SvXMLTokenEnumerator aTokenEnum( rStrImpValue );
	OUString aToken;
	sal_Bool bHori = sal_False, bVert = sal_False;

	while( bRet && aTokenEnum.getNextToken( aToken ) )
	{
		if( bHori && bVert )
		{
			bRet = sal_False;
		}
		else if( -1 != aToken.indexOf( sal_Unicode('%') ) )
		{
			sal_Int32 nPrc = 50;
			if( rUnitConverter.convertPercent( nPrc, aToken ) )
			{
				if( !bHori )
				{
					ePos = nPrc < 25 ? style::GraphicLocation_LEFT_TOP : 
				                       (nPrc < 75 ? style::GraphicLocation_MIDDLE_MIDDLE : 
									                style::GraphicLocation_RIGHT_BOTTOM);
					bHori = sal_True;
				}
				else
				{
					eTmp = nPrc < 25 ? style::GraphicLocation_LEFT_TOP: 
				                       (nPrc < 75 ? style::GraphicLocation_LEFT_MIDDLE : 
									                style::GraphicLocation_LEFT_BOTTOM);
					MergeXMLVertPos( ePos, eTmp );
					bVert = sal_True;
				}
			}
			else
			{
				// wrong percentage
				bRet = sal_False;
			}
		}
		else if( IsXMLToken( aToken, XML_CENTER ) )
		{
			if( bHori )
				MergeXMLVertPos( ePos, style::GraphicLocation_MIDDLE_MIDDLE );
			else if ( bVert )
				MergeXMLHoriPos( ePos, style::GraphicLocation_MIDDLE_MIDDLE );
			else
				ePos = style::GraphicLocation_MIDDLE_MIDDLE;
		}
		else if( rUnitConverter.convertEnum( nTmp, aToken, pXML_BrushHorizontalPos ) )
		{
			if( bVert )
				MergeXMLHoriPos( ePos, (style::GraphicLocation)nTmp );
			else if( !bHori )
				ePos = (style::GraphicLocation)nTmp;
			else
				bRet = sal_False;

			bHori = sal_True;
		}
		else if( rUnitConverter.convertEnum( nTmp, aToken, pXML_BrushVerticalPos ) )
		{
			if( bHori )
				MergeXMLVertPos( ePos, (style::GraphicLocation)nTmp );
			else if( !bVert )
				ePos = (style::GraphicLocation)nTmp;
			else
				bRet = sal_False;
			bVert = sal_True;
		}
		else
		{
			bRet = sal_False;
		}
	}

	bRet &= style::GraphicLocation_NONE != ePos;
	if( bRet )
		rValue <<= (style::GraphicLocation)(sal_uInt16)ePos;

	return bRet; 
}

sal_Bool XMLBackGraphicPositionPropHdl::exportXML( OUString& rStrExpValue, const uno::Any& rValue, const SvXMLUnitConverter& rUnitConverter ) const
{ 
	sal_Bool bRet = sal_True;
	OUStringBuffer aOut;

	style::GraphicLocation eLocation;
	if( !( rValue >>= eLocation ) )
	{
		sal_Int32 nValue;
		if( rValue >>= nValue )
			eLocation = (style::GraphicLocation)nValue;
		else
			bRet = sal_False;
	}

	if( bRet )
	{
		bRet = sal_False;

		switch( eLocation )
		{
		case style::GraphicLocation_LEFT_TOP:
		case style::GraphicLocation_MIDDLE_TOP:
		case style::GraphicLocation_RIGHT_TOP:
			aOut.append( GetXMLToken(XML_TOP) );
			bRet = sal_True;
			break;
		case style::GraphicLocation_LEFT_MIDDLE:
		case style::GraphicLocation_MIDDLE_MIDDLE:
		case style::GraphicLocation_RIGHT_MIDDLE:
			aOut.append( GetXMLToken(XML_CENTER) );
			bRet = sal_True;
			break;
		case style::GraphicLocation_LEFT_BOTTOM:
		case style::GraphicLocation_MIDDLE_BOTTOM:
		case style::GraphicLocation_RIGHT_BOTTOM:
			aOut.append( GetXMLToken(XML_BOTTOM) );
			bRet = sal_True;
			break;
		}

		if( bRet )
		{
			aOut.append( sal_Unicode( ' ' ) );

			switch( eLocation )
			{
			case style::GraphicLocation_LEFT_TOP:
			case style::GraphicLocation_LEFT_BOTTOM:
			case style::GraphicLocation_LEFT_MIDDLE:
				aOut.append( GetXMLToken(XML_LEFT) );
				break;
			case style::GraphicLocation_MIDDLE_TOP:
			case style::GraphicLocation_MIDDLE_MIDDLE:
			case style::GraphicLocation_MIDDLE_BOTTOM:
				aOut.append( GetXMLToken(XML_CENTER) );
				break;
			case style::GraphicLocation_RIGHT_MIDDLE:
			case style::GraphicLocation_RIGHT_TOP:
			case style::GraphicLocation_RIGHT_BOTTOM:
				aOut.append( GetXMLToken(XML_RIGHT) );
				break;
			}
		}
	}

	rStrExpValue = aOut.makeStringAndClear();

	return bRet;
}

void XMLBackGraphicPositionPropHdl::MergeXMLVertPos( style::GraphicLocation& ePos, style::GraphicLocation eVert )
{
	switch( ePos )
	{
	case style::GraphicLocation_LEFT_TOP:
	case style::GraphicLocation_LEFT_MIDDLE:
	case style::GraphicLocation_LEFT_BOTTOM:
		ePos = style::GraphicLocation_MIDDLE_TOP==eVert ? 
			   style::GraphicLocation_LEFT_TOP : 
		      (style::GraphicLocation_MIDDLE_MIDDLE==eVert ? 
			   style::GraphicLocation_LEFT_MIDDLE : 
			   style::GraphicLocation_LEFT_BOTTOM);
		ePos = eVert;
		break;

	case style::GraphicLocation_MIDDLE_TOP:
	case style::GraphicLocation_MIDDLE_MIDDLE:
	case style::GraphicLocation_MIDDLE_BOTTOM:
		ePos = eVert;
		break;

	case style::GraphicLocation_RIGHT_TOP:
	case style::GraphicLocation_RIGHT_MIDDLE:
	case style::GraphicLocation_RIGHT_BOTTOM:
		ePos = style::GraphicLocation_MIDDLE_TOP==eVert ? 
			   style::GraphicLocation_RIGHT_TOP : 
		      (style::GraphicLocation_MIDDLE_MIDDLE==eVert ? 
			   style::GraphicLocation_RIGHT_MIDDLE : 
			   style::GraphicLocation_RIGHT_BOTTOM);
		break;
	}
}

void XMLBackGraphicPositionPropHdl::MergeXMLHoriPos( style::GraphicLocation& ePos, style::GraphicLocation eHori )
{
	DBG_ASSERT( style::GraphicLocation_LEFT_MIDDLE==eHori || style::GraphicLocation_MIDDLE_MIDDLE==eHori || style::GraphicLocation_RIGHT_MIDDLE==eHori,
				"lcl_frmitems_MergeXMLHoriPos: vertical pos must be middle" );

	switch( ePos )
	{
	case style::GraphicLocation_LEFT_TOP:
	case style::GraphicLocation_MIDDLE_TOP:
	case style::GraphicLocation_RIGHT_TOP:
		ePos = style::GraphicLocation_LEFT_MIDDLE==eHori ? 
			   style::GraphicLocation_LEFT_TOP : 
		      (style::GraphicLocation_MIDDLE_MIDDLE==eHori ? 
			   style::GraphicLocation_MIDDLE_TOP : 
			   style::GraphicLocation_RIGHT_TOP);
		break;

	case style::GraphicLocation_LEFT_MIDDLE:
	case style::GraphicLocation_MIDDLE_MIDDLE:
	case style::GraphicLocation_RIGHT_MIDDLE:
		ePos = eHori;
		break;

	case style::GraphicLocation_LEFT_BOTTOM:
	case style::GraphicLocation_MIDDLE_BOTTOM:
	case style::GraphicLocation_RIGHT_BOTTOM:
		ePos = style::GraphicLocation_LEFT_MIDDLE==eHori ? 
			   style::GraphicLocation_LEFT_BOTTOM : 
		      (style::GraphicLocation_MIDDLE_MIDDLE==eHori ? 
			   style::GraphicLocation_MIDDLE_BOTTOM : 
			   style::GraphicLocation_RIGHT_BOTTOM);
		break;
	}
}

}//end of namespace binfilter
