/* -*- 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 .

 */

#include "ChartPlotAreaOASISTContext.hxx"

#include "TransformerBase.hxx"

#include <xmloff/namespacemap.hxx>

#include <xmloff/xmlnamespace.hxx>

#include <xmloff/xmltoken.hxx>

#include "DeepTContext.hxx"

#include "ActionMapTypesOASIS.hxx"

#include "MutableAttrList.hxx"

#include <osl/diagnose.h>

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

using namespace ::xmloff::token;

using ::com::sun::star::uno::Reference;

namespace {

class XMLAxisOASISContext : public XMLPersElemContentTContext

{

public:

    XMLAxisOASISContext( XMLTransformerBase& rTransformer,

                         const OUString& rQName,

                         ::rtl::Reference< XMLPersAttrListTContext > & rOutCategoriesContext );

    virtual rtl::Reference<XMLTransformerContext> CreateChildContext(

        sal_uInt16 nPrefix,

        const OUString& rLocalName,

        const OUString& rQName,

        const Reference< xml::sax::XAttributeList >& xAttrList ) override;

    virtual void StartElement( const Reference< xml::sax::XAttributeList >& rAttrList ) override;

    virtual void EndElement() override;

private:

    ::rtl::Reference< XMLPersAttrListTContext > &   m_rCategoriesContext;

    bool                                            m_bHasCategories;

};

}

XMLAxisOASISContext::XMLAxisOASISContext(

    XMLTransformerBase& rTransformer,

    const OUString& rQName,

    ::rtl::Reference< XMLPersAttrListTContext > & rOutCategoriesContext ) :

        XMLPersElemContentTContext( rTransformer, rQName ),

        m_rCategoriesContext( rOutCategoriesContext ),

        m_bHasCategories( false )

{}

rtl::Reference<XMLTransformerContext> XMLAxisOASISContext::CreateChildContext(

    sal_uInt16 nPrefix,

    const OUString& rLocalName,

    const OUString& rQName,

    const Reference< xml::sax::XAttributeList >& xAttrList )

{

    rtl::Reference<XMLTransformerContext> pContext;

    if( XML_NAMESPACE_CHART == nPrefix &&

        IsXMLToken( rLocalName, XML_CATEGORIES ) )

    {

        // store categories element at parent

        m_rCategoriesContext.set( new XMLPersAttrListTContext( GetTransformer(), rQName ));

        m_bHasCategories = true;

        pContext = m_rCategoriesContext.get();

    }

    else

    {

        pContext =  XMLPersElemContentTContext::CreateChildContext(

            nPrefix, rLocalName, rQName, xAttrList );

    }

    return pContext;

}

void XMLAxisOASISContext::StartElement(

    const Reference< xml::sax::XAttributeList >& rAttrList )

{

    Reference< xml::sax::XAttributeList > xAttrList( rAttrList );

    rtl::Reference<XMLMutableAttributeList> pMutableAttrList;

    sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;

    for( sal_Int16 i=0; i < nAttrCount; i++ )

    {

        const OUString aAttrName = xAttrList->getNameByIndex( i );

        OUString aLocalName;

        sal_uInt16 nPrefix =

            GetTransformer().GetNamespaceMap().GetKeyByAttrName( aAttrName, &aLocalName );

        if( nPrefix == XML_NAMESPACE_CHART &&

            IsXMLToken( aLocalName, XML_DIMENSION ) )

        {

            if( !pMutableAttrList )

            {

                pMutableAttrList = new XMLMutableAttributeList( xAttrList );

                xAttrList = pMutableAttrList;

            }

            const OUString aAttrValue = xAttrList->getValueByIndex( i );

            XMLTokenEnum eToken = XML_TOKEN_INVALID;

            if( IsXMLToken( aAttrValue, XML_X ))

            {

                eToken = XML_DOMAIN;

                // has to be XML_CATEGORY for axes with a categories

                // sub-element.  The attribute is changed later (when it is

                // known that there is a categories sub-element) in this case.

            }

            else if( IsXMLToken( aAttrValue, XML_Y ))

            {

                eToken = XML_VALUE;

            }

            else if( IsXMLToken( aAttrValue, XML_Z ))

            {

                eToken = XML_SERIES;

            }

            else

            {

                OSL_FAIL( "ChartAxis: Invalid attribute value" );

            }

            if( eToken != XML_TOKEN_INVALID )

            {

                OUString aNewAttrQName(

                    GetTransformer().GetNamespaceMap().GetQNameByKey(

                        XML_NAMESPACE_CHART, GetXMLToken( XML_CLASS )));

                pMutableAttrList->RenameAttributeByIndex( i, aNewAttrQName );

                pMutableAttrList->SetValueByIndex( i, GetXMLToken( eToken ));

            }

        }

    }

    XMLPersElemContentTContext::StartElement( xAttrList );

}

void XMLAxisOASISContext::EndElement()

{

    // if we have categories, change the "class" attribute

    if( m_bHasCategories &&

        m_rCategoriesContext.is() )

    {

        OSL_ENSURE( GetAttrList().is(), "Invalid attribute list" );

        rtl::Reference<XMLMutableAttributeList> pMutableAttrList =

            new XMLMutableAttributeList( GetAttrList());

        OUString aAttrQName( GetTransformer().GetNamespaceMap().GetQNameByKey(

                                 XML_NAMESPACE_CHART, GetXMLToken( XML_CLASS )));

        sal_Int16 nIndex = pMutableAttrList->GetIndexByName( aAttrQName );

        if( nIndex != -1 )

        {

            OSL_ENSURE( IsXMLToken( pMutableAttrList->getValueByIndex( nIndex ),

                                    XML_DOMAIN ), "Axis Dimension: invalid former value" );

            pMutableAttrList->SetValueByIndex( nIndex, GetXMLToken( XML_CATEGORY ));

            OSL_ENSURE( IsXMLToken( pMutableAttrList->getValueByIndex( nIndex ),

                                    XML_CATEGORY ), "Axis Dimension: invalid new value" );

        }

        GetTransformer().GetDocHandler()->startElement(

            GetExportQName(),

            Reference< xml::sax::XAttributeList >( pMutableAttrList ));

        ExportContent();

        GetTransformer().GetDocHandler()->endElement( GetExportQName());

    }

    else

        Export();

}

XMLChartPlotAreaOASISTContext::XMLChartPlotAreaOASISTContext(

    XMLTransformerBase & rTransformer, const OUString & rQName ) :

        XMLProcAttrTransformerContext( rTransformer, rQName, OASIS_SHAPE_ACTIONS )

{

}

XMLChartPlotAreaOASISTContext::~XMLChartPlotAreaOASISTContext()

{}

rtl::Reference<XMLTransformerContext> XMLChartPlotAreaOASISTContext::CreateChildContext(

    sal_uInt16 nPrefix,

    const OUString& rLocalName,

    const OUString& rQName,

    const uno::Reference< xml::sax::XAttributeList >& xAttrList )

{

    rtl::Reference<XMLTransformerContext> pContext;

    if( XML_NAMESPACE_CHART == nPrefix &&

        IsXMLToken( rLocalName, XML_AXIS ) )

    {

        pContext.set(new XMLAxisOASISContext( GetTransformer(), rQName, m_rCategoriesContext ));

    }

    else

    {

        // export (and forget) categories if found in an axis-element

        // otherwise export regularly

        ExportCategories();

        pContext =  XMLProcAttrTransformerContext::CreateChildContext(

                nPrefix, rLocalName, rQName, xAttrList );

    }

    return pContext;

}

void XMLChartPlotAreaOASISTContext::EndElement()

{

    ExportCategories();

    XMLProcAttrTransformerContext::EndElement();

}

void XMLChartPlotAreaOASISTContext::ExportCategories()

{

    if( m_rCategoriesContext.is())

    {

        m_rCategoriesContext->Export();

        m_rCategoriesContext.clear();

    }

}

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