/* -*- 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 <com/sun/star/drawing/XLayerSupplier.hpp>

#include <com/sun/star/container/XIndexAccess.hpp>

#include <com/sun/star/beans/XPropertySet.hpp>

#include <com/sun/star/frame/XModel.hpp>

#include <xmloff/xmltoken.hxx>

#include <xmloff/xmlnamespace.hxx>

#include <xmloff/xmlexp.hxx>

#include "layerexp.hxx"

#include <comphelper/diagnose_ex.hxx>

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

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

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

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

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

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

using namespace ::xmloff::token;

void SdXMLayerExporter::exportLayer( SvXMLExport& rExport )

{

    Reference< XLayerSupplier > xLayerSupplier( rExport.GetModel(), UNO_QUERY );

    if( !xLayerSupplier.is() )

        return;

    Reference< XIndexAccess > xLayerManager( xLayerSupplier->getLayerManager(), UNO_QUERY );

    if( !xLayerManager.is() )

        return;

    const sal_Int32 nCount = xLayerManager->getCount();

    if( nCount == 0 )

        return;

    static constexpr OUStringLiteral strName( u"Name" );

    static constexpr OUStringLiteral strTitle( u"Title" );

    static constexpr OUStringLiteral strDescription( u"Description" );

    static constexpr OUStringLiteral strIsVisible( u"IsVisible");

    static constexpr OUStringLiteral strIsPrintable( u"IsPrintable");

    static constexpr OUStringLiteral strIsLocked( u"IsLocked" );

    OUString sTmp;

    SvXMLElementExport aElem( rExport, XML_NAMESPACE_DRAW, XML_LAYER_SET, true, true );

    for( sal_Int32 nIndex = 0; nIndex < nCount; nIndex++ )

    {

        try

        {

            Reference< XPropertySet> xLayer( xLayerManager->getByIndex( nIndex ), UNO_QUERY_THROW );

            xLayer->getPropertyValue( strName ) >>= sTmp;

            if(!sTmp.isEmpty())

                rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_NAME, sTmp );

            bool bTmpVisible( true );

            bool bTmpPrintable( true );

            xLayer->getPropertyValue( strIsVisible) >>= bTmpVisible;

            xLayer->getPropertyValue( strIsPrintable) >>= bTmpPrintable;

            // only write non-default values, default is "always"

            if ( bTmpVisible )

            {

                if ( !bTmpPrintable )

                    rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_DISPLAY, u"screen"_ustr );

            }

            else

            {

                if ( bTmpPrintable)

                    rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_DISPLAY, u"printer"_ustr );

                else

                    rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_DISPLAY, u"none"_ustr );

            }

            bool bTmpLocked( false );

            xLayer->getPropertyValue( strIsLocked ) >>= bTmpLocked;

            // only write non-default value, default is "false"

            if ( bTmpLocked )

            {

                rExport.AddAttribute( XML_NAMESPACE_DRAW, XML_PROTECTED, u"true"_ustr );

            }

            SvXMLElementExport aEle( rExport, XML_NAMESPACE_DRAW, XML_LAYER, true, true );

            // title property (as <svg:title> element)

            xLayer->getPropertyValue(strTitle) >>= sTmp;

            if(!sTmp.isEmpty())

            {

                SvXMLElementExport aEventElemt(rExport, XML_NAMESPACE_SVG, XML_TITLE, true, false);

                rExport.Characters(sTmp);

            }

            // description property (as <svg:desc> element)

            xLayer->getPropertyValue(strDescription) >>= sTmp;

            if(!sTmp.isEmpty())

            {

                SvXMLElementExport aDesc(rExport, XML_NAMESPACE_SVG, XML_DESC, true, false);

                rExport.Characters(sTmp);

            }

        }

        catch( Exception& )

        {

            TOOLS_WARN_EXCEPTION("xmloff.draw", "exception caught during export of one layer!");

        }

    }

}

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