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path: root/vcl/source/filter/svm/SvmWriter.cxx
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/* -*- 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 <vcl/filter/SvmWriter.hxx>
#include <vcl/TypeSerializer.hxx>

#include <tools/stream.hxx>
#include <tools/vcompat.hxx>

SvmWriter::SvmWriter(SvStream& rIStm)
    : mrStream(rIStm)
{
}

void SvmWriter::WriteColor(::Color aColor)
{
    mrStream.WriteUInt32(static_cast<sal_uInt32>(aColor));
}

SvStream& SvmWriter::Write(GDIMetaFile& rMetaFile)
{
    const SvStreamCompressFlags nStmCompressMode = mrStream.GetCompressMode();
    SvStreamEndian nOldFormat = mrStream.GetEndian();

    mrStream.SetEndian(SvStreamEndian::LITTLE);
    mrStream.WriteBytes("VCLMTF", 6);

    {
        VersionCompatWrite aCompat(mrStream, 1);

        mrStream.WriteUInt32(static_cast<sal_uInt32>(nStmCompressMode));
        TypeSerializer aSerializer(mrStream);
        aSerializer.writeMapMode(rMetaFile.GetPrefMapMode());
        aSerializer.writeSize(rMetaFile.GetPrefSize());
        mrStream.WriteUInt32(rMetaFile.GetActionSize());
    } // VersionCompatWrite dtor writes stuff into the header

    ImplMetaWriteData aWriteData;

    aWriteData.meActualCharSet = mrStream.GetStreamCharSet();

    MetaAction* pAct = rMetaFile.FirstAction();
    while (pAct)
    {
        // pAct->Write( mrStream, &aWriteData );
        MetaActionHandler(pAct, &aWriteData);
        pAct = rMetaFile.NextAction();
    }

    mrStream.SetEndian(nOldFormat);

    return mrStream;
}

void SvmWriter::MetaActionHandler(MetaAction* pAct, ImplMetaWriteData* pData)
{
    MetaActionType nType = static_cast<MetaActionType>(pAct->GetType());

    switch (nType)
    {
        case MetaActionType::NONE:
        {
            ActionHandler(pAct->GetType());
        }
        break;
        case MetaActionType::PIXEL:
        {
            auto* pMetaAction = static_cast<MetaPixelAction*>(pAct);
            PixelHandler(pMetaAction);
        }
        break;
        default:
            pAct->Write(mrStream, pData);
    }
}

void SvmWriter::ActionHandler(MetaActionType nType)
{
    mrStream.WriteUInt16(static_cast<sal_uInt16>(nType));
}

void SvmWriter::PixelHandler(MetaPixelAction* pAct)
{
    ActionHandler(pAct->GetType());
    VersionCompatWrite aCompat(mrStream, 1);
    TypeSerializer aSerializer(mrStream);
    aSerializer.writePoint(pAct->GetPoint());
    WriteColor(pAct->GetColor());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */