main/xmloff/source/style/MarkerStyle.cxx

/**************************************************************
 * 
 * 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
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_xmloff.hxx"
#include "xmloff/MarkerStyle.hxx"
#include "xexptran.hxx"
#include <xmloff/attrlist.hxx>
#include <xmloff/nmspmap.hxx>
#include <xmloff/xmluconv.hxx>
#include "xmloff/xmlnmspe.hxx"
#include <xmloff/xmltoken.hxx>
#include <xmloff/xmlexp.hxx>
#include <xmloff/xmlimp.hxx>
#include <rtl/ustrbuf.hxx>
#include <rtl/ustring.hxx>
#include <com/sun/star/drawing/PolyPolygonBezierCoords.hpp>

using namespace ::com::sun::star;
using ::rtl::OUString;
using ::rtl::OUStringBuffer;

using namespace ::xmloff::token;


//-------------------------------------------------------------
// Import
//-------------------------------------------------------------

XMLMarkerStyleImport::XMLMarkerStyleImport( SvXMLImport& rImp )
    : rImport( rImp )
{
}

XMLMarkerStyleImport::~XMLMarkerStyleImport()
{
}

sal_Bool XMLMarkerStyleImport::importXML( 
    const uno::Reference< xml::sax::XAttributeList >& xAttrList, 
    uno::Any& rValue, 
    OUString& rStrName )
{
	sal_Bool bHasViewBox    = sal_False;
	sal_Bool bHasPathData   = sal_False;
	OUString aDisplayName;

	SdXMLImExViewBox* pViewBox = NULL;

    SvXMLNamespaceMap& rNamespaceMap = rImport.GetNamespaceMap();
    SvXMLUnitConverter& rUnitConverter = rImport.GetMM100UnitConverter();

	OUString strPathData;

	sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
	for( sal_Int16 i = 0; i < nAttrCount; i++ )
	{
		OUString aStrFullAttrName = xAttrList->getNameByIndex( i );
		OUString aStrAttrName;
		rNamespaceMap.GetKeyByAttrName( aStrFullAttrName, &aStrAttrName );
		OUString aStrValue = xAttrList->getValueByIndex( i );

		if( IsXMLToken( aStrAttrName, XML_NAME ) )
		{
			rStrName = aStrValue;
		} 
		else if( IsXMLToken( aStrAttrName, XML_DISPLAY_NAME ) )
		{
			aDisplayName = aStrValue;
		} 
		else if( IsXMLToken( aStrAttrName, XML_VIEWBOX ) )
		{
			pViewBox = new SdXMLImExViewBox( aStrValue, rUnitConverter );
			bHasViewBox = sal_True;

		} 
		else if( IsXMLToken( aStrAttrName, XML_D ) )
		{
			strPathData = aStrValue;
			bHasPathData = sal_True;
		}
	}

	if( bHasViewBox && bHasPathData )
	{
		SdXMLImExSvgDElement aPoints(strPathData, *pViewBox, awt::Point( 0, 0 ),
			awt::Size( pViewBox->GetWidth(), pViewBox->GetHeight() ), 
			rUnitConverter );

		if(aPoints.IsCurve())
		{
			drawing::PolyPolygonBezierCoords aSourcePolyPolygon(
				aPoints.GetPointSequenceSequence(),
				aPoints.GetFlagSequenceSequence());
			rValue <<= aSourcePolyPolygon;
		}
		else
		{
			drawing::PolyPolygonBezierCoords aSourcePolyPolygon;
			aSourcePolyPolygon.Coordinates = aPoints.GetPointSequenceSequence();
			aSourcePolyPolygon.Flags.realloc(aSourcePolyPolygon.Coordinates.getLength());

			// Zeiger auf innere sequences holen
			const drawing::PointSequence* pInnerSequence = aSourcePolyPolygon.Coordinates.getConstArray();
			drawing::FlagSequence* pInnerSequenceFlags = aSourcePolyPolygon.Flags.getArray();

			for(sal_Int32 a(0); a < aSourcePolyPolygon.Coordinates.getLength(); a++)
			{
				pInnerSequenceFlags->realloc(pInnerSequence->getLength());
				drawing::PolygonFlags* pPolyFlags = pInnerSequenceFlags->getArray();

				for(sal_Int32 b(0); b < pInnerSequence->getLength(); b++)
					*pPolyFlags++ = drawing::PolygonFlags_NORMAL;

				// next run
				pInnerSequence++;
				pInnerSequenceFlags++;
			}

			rValue <<= aSourcePolyPolygon;
		}		

		if( aDisplayName.getLength() )
		{
			rImport.AddStyleDisplayName( XML_STYLE_FAMILY_SD_MARKER_ID, rStrName, 
										aDisplayName );
			rStrName = aDisplayName;
		}

	}

	if( pViewBox )
		delete pViewBox;

	return bHasViewBox && bHasPathData;
}


//-------------------------------------------------------------
// Export
//-------------------------------------------------------------

#ifndef SVX_LIGHT

XMLMarkerStyleExport::XMLMarkerStyleExport( SvXMLExport& rExp )
    : rExport( rExp )
{
}

XMLMarkerStyleExport::~XMLMarkerStyleExport()
{
}

sal_Bool XMLMarkerStyleExport::exportXML( 
    const OUString& rStrName, 
    const uno::Any& rValue )
{
	sal_Bool bRet(sal_False);
	
	if(rStrName.getLength())
	{
		drawing::PolyPolygonBezierCoords aBezier;
	
		if(rValue >>= aBezier)
		{
			OUString aStrValue;
			OUStringBuffer aOut;

			/////////////////
			// Name
			sal_Bool bEncoded = sal_False;
			OUString aStrName( rStrName );
			rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_NAME, 
								  rExport.EncodeStyleName( aStrName,
														   &bEncoded ) );
			if( bEncoded )
				rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_DISPLAY_NAME, 
									  aStrName );
			 
			/////////////////
			// Viewbox (viewBox="0 0 1500 1000")
			sal_Int32 nMinX(0x7fffffff);
			sal_Int32 nMaxX(0x80000000); 
			sal_Int32 nMinY(0x7fffffff); 
			sal_Int32 nMaxY(0x80000000);
			sal_Int32 nOuterCnt(aBezier.Coordinates.getLength());
			drawing::PointSequence* pOuterSequence = aBezier.Coordinates.getArray();
			sal_Int32 a, b;
			sal_Bool bClosed(sal_False);

            for (a = 0; a < nOuterCnt; a++)
			{
				drawing::PointSequence* pSequence = pOuterSequence++;
				const awt::Point *pPoints = pSequence->getConstArray();
				sal_Int32 nPointCount(pSequence->getLength());

				if(nPointCount)
				{
					const awt::Point aStart = pPoints[0];
					const awt::Point aEnd = pPoints[nPointCount - 1];

					if(aStart.X == aEnd.X && aStart.Y == aEnd.Y)
					{
						bClosed = sal_True;
					}
				}

                for (b = 0; b < nPointCount; b++)
				{
					const awt::Point aPoint = pPoints[b];

					if( aPoint.X < nMinX )
						nMinX = aPoint.X;

					if( aPoint.X > nMaxX )
						nMaxX = aPoint.X;
					
					if( aPoint.Y < nMinY )
						nMinY = aPoint.Y;
					
					if( aPoint.Y > nMaxY )
						nMaxY = aPoint.Y;
				}
			}

			sal_Int32 nDifX(nMaxX - nMinX);
			sal_Int32 nDifY(nMaxY - nMinY);

			SdXMLImExViewBox aViewBox( 0, 0, nDifX, nDifY );  
			rExport.AddAttribute( XML_NAMESPACE_SVG, XML_VIEWBOX, aViewBox.GetExportString() );
			
			/////////////////
			// Pathdata
			pOuterSequence = aBezier.Coordinates.getArray();
			drawing::FlagSequence*  pOuterFlags = aBezier.Flags.getArray();
			SdXMLImExSvgDElement aSvgDElement(aViewBox);
			
            for (a = 0; a < nOuterCnt; a++)
			{
				drawing::PointSequence* pSequence = pOuterSequence++;
				drawing::FlagSequence* pFlags = pOuterFlags++;

				aSvgDElement.AddPolygon(pSequence, pFlags,
					awt::Point( 0, 0 ), 
					awt::Size( aViewBox.GetWidth(), aViewBox.GetHeight() ), 
					bClosed);
			}

			// write point array
			rExport.AddAttribute(XML_NAMESPACE_SVG, XML_D, aSvgDElement.GetExportString());

			/////////////////
			// Do Write
            SvXMLElementExport rElem( rExport, XML_NAMESPACE_DRAW, XML_MARKER,
                                      sal_True, sal_False );
		}
	}
	
	return bRet;
}

#endif // #ifndef SVX_LIGHT