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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 <rtl/ustring.hxx>
#include <xmlmultiimagehelper.hxx>
#include <comphelper/graphicmimetype.hxx>
using namespace ::com::sun::star;
namespace
{
OUString getMimeTypeForURL(const OUString& rString)
{
OUString sMimeType;
if (rString.startsWith("vnd.sun.star.Package"))
{
OString aExtension = OUStringToOString(rString.copy(rString.lastIndexOf(".") + 1), RTL_TEXTENCODING_ASCII_US);
sMimeType = comphelper::GraphicMimeTypeHelper::GetMimeTypeForExtension(aExtension);
}
return sMimeType;
}
sal_uInt32 getQualityIndex(const OUString& rMimeType)
{
// pixel formats first
if (rMimeType == "image/bmp")
{
return 10;
}
if (rMimeType == "image/gif")
{
return 20;
}
if (rMimeType == "image/jpeg")
{
return 30;
}
if (rMimeType == "image/png")
{
return 40;
}
// vector formats, prefer always
if (rMimeType == "image/x-vclgraphic") // MIMETYPE_VCLGRAPHIC
{
return 990;
}
if (rMimeType == "image/x-svm")
{
return 1000;
}
if (rMimeType == "image/x-wmf")
{
return 1010;
}
if (rMimeType == "image/x-emf")
{
return 1020;
}
if (rMimeType == "image/x-eps")
{
return 1025;
}
if (rMimeType == "application/pdf")
{
return 1030;
}
if (rMimeType == "image/svg+xml")
{
return 1040;
}
return 0;
}
}
MultiImageImportHelper::MultiImageImportHelper()
: maImplContextVector(),
mbSupportsMultipleContents(false)
{
}
MultiImageImportHelper::~MultiImageImportHelper()
{
}
SvXMLImportContextRef MultiImageImportHelper::solveMultipleImages()
{
SvXMLImportContextRef pContext;
if(maImplContextVector.size() > 1)
{
// multiple child contexts were imported, decide which is the most valuable one
// and remove the rest
std::vector<SvXMLImportContextRef>::size_type nIndexOfPreferred(maImplContextVector.size());
sal_uInt32 nBestQuality(0);
for(std::vector<SvXMLImportContextRef>::size_type a = 0; a < maImplContextVector.size(); a++)
{
const SvXMLImportContext& rContext = *maImplContextVector[a];
OUString sMimeType;
const OUString aStreamURL(getGraphicPackageURLFromImportContext(rContext));
if (!aStreamURL.isEmpty())
{
sMimeType = getMimeTypeForURL(aStreamURL);
}
else
{
uno::Reference<graphic::XGraphic> xGraphic(getGraphicFromImportContext(rContext));
if (xGraphic.is())
sMimeType = comphelper::GraphicMimeTypeHelper::GetMimeTypeForXGraphic(xGraphic);
}
sal_uInt32 nNewQuality = getQualityIndex(sMimeType);
if (nNewQuality > nBestQuality)
{
nBestQuality = nNewQuality;
nIndexOfPreferred = a;
}
}
// correct if needed, default is to use the last entry
if(nIndexOfPreferred >= maImplContextVector.size())
{
nIndexOfPreferred = maImplContextVector.size() - 1;
}
// Take out the most valuable one
const std::vector< SvXMLImportContextRef >::iterator aRemove(maImplContextVector.begin() + nIndexOfPreferred);
pContext = *aRemove;
maImplContextVector.erase(aRemove);
// remove the rest from parent
for(std::vector<SvXMLImportContextRef>::size_type a = 0; a < maImplContextVector.size(); a++)
{
SvXMLImportContext& rCandidate = *maImplContextVector[a];
removeGraphicFromImportContext(rCandidate);
}
// re-insert it so that solveMultipleImages is idempotent
maImplContextVector.clear();
maImplContextVector.push_back(pContext);
}
else if (maImplContextVector.size() == 1)
{
pContext = maImplContextVector.front();
}
return pContext;
}
void MultiImageImportHelper::addContent(const SvXMLImportContext& rSvXMLImportContext)
{
maImplContextVector.emplace_back(const_cast< SvXMLImportContext* >(&rSvXMLImportContext));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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