libreoffice/xmloff/source/style/ImageStyle.cxx

/* -*- 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 <xmloff/ImageStyle.hxx>
#include <com/sun/star/awt/XBitmap.hpp>
#include <com/sun/star/graphic/XGraphic.hpp>
#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 <sal/log.hxx>
#include <xmloff/xmltkmap.hxx>

using namespace css;
using namespace xmloff::token;

enum SvXMLTokenMapAttrs
{
    XML_TOK_IMAGE_NAME,
    XML_TOK_IMAGE_DISPLAY_NAME,
    XML_TOK_IMAGE_URL,
    XML_TOK_IMAGE_TYPE,
    XML_TOK_IMAGE_SHOW,
    XML_TOK_IMAGE_ACTUATE
};

void XMLImageStyle::exportXML(OUString const & rStrName, uno::Any const & rValue, SvXMLExport& rExport)
{
    if (rStrName.isEmpty())
        return;

    if (rValue.has<uno::Reference<awt::XBitmap>>())
    {
        // Name
        bool bEncoded = false;
        rExport.AddAttribute(XML_NAMESPACE_DRAW, XML_NAME,
                             rExport.EncodeStyleName(rStrName, &bEncoded));
        if (bEncoded)
        {
            rExport.AddAttribute(XML_NAMESPACE_DRAW, XML_DISPLAY_NAME, rStrName);
        }

        auto xBitmap = rValue.get<uno::Reference<awt::XBitmap>>();
        uno::Reference<graphic::XGraphic> xGraphic(xBitmap, uno::UNO_QUERY);

        OUString aMimeType;
        const OUString aStr = rExport.AddEmbeddedXGraphic(xGraphic, aMimeType);

        // uri
        if (!aStr.isEmpty())
        {
            rExport.AddAttribute( XML_NAMESPACE_XLINK, XML_HREF, aStr );
            rExport.AddAttribute( XML_NAMESPACE_XLINK, XML_TYPE, XML_SIMPLE );
            rExport.AddAttribute( XML_NAMESPACE_XLINK, XML_SHOW, XML_EMBED );
            rExport.AddAttribute( XML_NAMESPACE_XLINK, XML_ACTUATE, XML_ONLOAD );
        }

        // Do Write
        SvXMLElementExport aElem(rExport, XML_NAMESPACE_DRAW, XML_FILL_IMAGE, true, true);

        if (xBitmap.is() && xGraphic.is())
        {
            // optional office:binary-data
            rExport.AddEmbeddedXGraphicAsBase64(xGraphic);
        }
    }
}

bool XMLImageStyle::importXML(uno::Reference<xml::sax::XAttributeList> const & xAttrList,
                              uno::Any& rValue, OUString& rStrName, SvXMLImport& rImport)
{
    static const SvXMLTokenMapEntry aHatchAttrTokenMap[] =
    {
        { XML_NAMESPACE_DRAW, XML_NAME, XML_TOK_IMAGE_NAME },
        { XML_NAMESPACE_DRAW, XML_DISPLAY_NAME, XML_TOK_IMAGE_DISPLAY_NAME },
        { XML_NAMESPACE_XLINK, XML_HREF, XML_TOK_IMAGE_URL },
        { XML_NAMESPACE_XLINK, XML_TYPE, XML_TOK_IMAGE_TYPE },
        { XML_NAMESPACE_XLINK, XML_SHOW, XML_TOK_IMAGE_SHOW },
        { XML_NAMESPACE_XLINK, XML_ACTUATE, XML_TOK_IMAGE_ACTUATE },
        XML_TOKEN_MAP_END
    };

    bool bHasHRef = false;
    bool bHasName = false;
    OUString aDisplayName;
    uno::Reference<graphic::XGraphic> xGraphic;

    SvXMLTokenMap aTokenMap( aHatchAttrTokenMap );

    sal_Int16 nAttrCount = xAttrList.is() ? xAttrList->getLength() : 0;
    for( sal_Int16 i=0; i < nAttrCount; i++ )
    {
        const OUString& rFullAttrName = xAttrList->getNameByIndex( i );
        OUString aStrAttrName;
        sal_uInt16 nPrefix = rImport.GetNamespaceMap().GetKeyByAttrName( rFullAttrName, &aStrAttrName );
        const OUString& rStrValue = xAttrList->getValueByIndex( i );

        switch( aTokenMap.Get( nPrefix, aStrAttrName ) )
        {
            case XML_TOK_IMAGE_NAME:
                {
                    rStrName = rStrValue;
                    bHasName = true;
                }
                break;
            case XML_TOK_IMAGE_DISPLAY_NAME:
                {
                    aDisplayName = rStrValue;
                }
                break;
            case XML_TOK_IMAGE_URL:
                {
                    xGraphic = rImport.loadGraphicByURL(rStrValue);
                    bHasHRef = true;
                }
                break;
            case XML_TOK_IMAGE_TYPE:
                // ignore
                break;
            case XML_TOK_IMAGE_SHOW:
                // ignore
                break;
            case XML_TOK_IMAGE_ACTUATE:
                // ignore
                break;
            default:
                SAL_INFO("xmloff.style", "Unknown token at import fill bitmap style");
        }
    }

    if (xGraphic.is())
        rValue <<= xGraphic;

    if( !aDisplayName.isEmpty() )
    {
        rImport.AddStyleDisplayName( XML_STYLE_FAMILY_SD_FILL_IMAGE_ID,
                                     rStrName, aDisplayName );
        rStrName = aDisplayName;
    }

    return bHasName && bHasHRef;
}

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