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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 <basegfx/matrix/b2dhommatrixtools.hxx>
#include <vcl/graphicfilter.hxx>
#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
#include <svgfeimagenode.hxx>
#include <o3tl/string_view.hxx>
#include <svgdocument.hxx>
#include <comphelper/base64.hxx>
#include <tools/stream.hxx>
#include <rtl/uri.hxx>
namespace svgio::svgreader
{
SvgFeImageNode::SvgFeImageNode(SvgDocument& rDocument, SvgNode* pParent)
: SvgFilterNode(SVGToken::FeImage, rDocument, pParent)
{
}
SvgFeImageNode::~SvgFeImageNode() {}
void SvgFeImageNode::parseAttribute(SVGToken aSVGToken, const OUString& aContent)
{
// parse own
switch (aSVGToken)
{
case SVGToken::Style:
{
readLocalCssStyle(aContent);
break;
}
case SVGToken::Href:
case SVGToken::XlinkHref:
{
const sal_Int32 nLen(aContent.getLength());
if (nLen)
{
OUString aXLink;
readImageLink(aContent, aXLink, maUrl, maData);
}
break;
}
default:
{
break;
}
}
}
void SvgFeImageNode::apply(drawinglayer::primitive2d::Primitive2DContainer& rTarget) const
{
BitmapEx aBitmapEx;
if (!maData.isEmpty())
{
// use embedded base64 encoded data
css::uno::Sequence<sal_Int8> aPass;
::comphelper::Base64::decode(aPass, maData);
if (aPass.hasElements())
{
SvMemoryStream aStream(aPass.getArray(), aPass.getLength(), StreamMode::READ);
Graphic aGraphic;
if (ERRCODE_NONE
== GraphicFilter::GetGraphicFilter().ImportGraphic(aGraphic, u"", aStream))
{
aBitmapEx = aGraphic.GetBitmapEx();
}
}
}
else if (!maUrl.isEmpty())
{
const OUString& rPath = getDocument().getAbsolutePath();
OUString aAbsUrl;
try
{
aAbsUrl = rtl::Uri::convertRelToAbs(rPath, maUrl);
}
catch (rtl::MalformedUriException& e)
{
SAL_WARN("svg", "caught rtl::MalformedUriException \"" << e.getMessage() << "\"");
}
if (!aAbsUrl.isEmpty() && rPath != aAbsUrl)
{
SvFileStream aStream(aAbsUrl, StreamMode::STD_READ);
Graphic aGraphic;
if (ERRCODE_NONE
== GraphicFilter::GetGraphicFilter().ImportGraphic(aGraphic, aAbsUrl, aStream))
{
aBitmapEx = aGraphic.GetBitmapEx();
}
}
}
if (!aBitmapEx.IsEmpty() && 0 != aBitmapEx.GetSizePixel().Width()
&& 0 != aBitmapEx.GetSizePixel().Height())
{
basegfx::B2DRange aViewBox
= rTarget.getB2DRange(drawinglayer::geometry::ViewInformation2D());
const drawinglayer::primitive2d::Primitive2DReference xRef(
new drawinglayer::primitive2d::BitmapPrimitive2D(
aBitmapEx, basegfx::utils::createScaleTranslateB2DHomMatrix(
aViewBox.getRange(), aViewBox.getMinimum())));
rTarget = drawinglayer::primitive2d::Primitive2DContainer{ xRef };
}
}
} // end of namespace svgio::svgreader
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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