141 lines
4.3 KiB
C++
141 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <basegfx/matrix/b2dhommatrixtools.hxx>
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#include <vcl/graphicfilter.hxx>
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#include <drawinglayer/primitive2d/bitmapprimitive2d.hxx>
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#include <svgfeimagenode.hxx>
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#include <o3tl/string_view.hxx>
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#include <svgdocument.hxx>
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#include <comphelper/base64.hxx>
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#include <tools/stream.hxx>
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#include <rtl/uri.hxx>
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namespace svgio::svgreader
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{
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SvgFeImageNode::SvgFeImageNode(SvgDocument& rDocument, SvgNode* pParent)
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: SvgFilterNode(SVGToken::FeImage, rDocument, pParent)
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{
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}
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SvgFeImageNode::~SvgFeImageNode() {}
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void SvgFeImageNode::parseAttribute(SVGToken aSVGToken, const OUString& aContent)
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{
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// parse own
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switch (aSVGToken)
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{
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case SVGToken::Style:
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{
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readLocalCssStyle(aContent);
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break;
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}
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case SVGToken::Result:
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{
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maResult = aContent.trim();
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break;
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}
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case SVGToken::Href:
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case SVGToken::XlinkHref:
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{
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const sal_Int32 nLen(aContent.getLength());
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if (nLen)
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{
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OUString aXLink;
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readImageLink(aContent, aXLink, maUrl, maData);
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}
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break;
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}
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default:
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{
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break;
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}
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}
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}
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void SvgFeImageNode::apply(drawinglayer::primitive2d::Primitive2DContainer& rTarget,
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const SvgFilterNode* pParent) const
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{
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BitmapEx aBitmapEx;
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if (!maData.isEmpty())
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{
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// use embedded base64 encoded data
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css::uno::Sequence<sal_Int8> aPass;
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::comphelper::Base64::decode(aPass, maData);
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if (aPass.hasElements())
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{
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SvMemoryStream aStream(aPass.getArray(), aPass.getLength(), StreamMode::READ);
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Graphic aGraphic;
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if (ERRCODE_NONE
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== GraphicFilter::GetGraphicFilter().ImportGraphic(aGraphic, u"", aStream))
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{
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aBitmapEx = aGraphic.GetBitmapEx();
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}
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}
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}
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else if (!maUrl.isEmpty())
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{
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const OUString& rPath = getDocument().getAbsolutePath();
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OUString aAbsUrl;
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try
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{
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aAbsUrl = rtl::Uri::convertRelToAbs(rPath, maUrl);
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}
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catch (rtl::MalformedUriException& e)
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{
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SAL_WARN("svg", "caught rtl::MalformedUriException \"" << e.getMessage() << "\"");
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}
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if (!aAbsUrl.isEmpty() && rPath != aAbsUrl)
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{
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SvFileStream aStream(aAbsUrl, StreamMode::STD_READ);
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Graphic aGraphic;
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if (ERRCODE_NONE
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== GraphicFilter::GetGraphicFilter().ImportGraphic(aGraphic, aAbsUrl, aStream))
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{
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aBitmapEx = aGraphic.GetBitmapEx();
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}
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}
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}
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if (!aBitmapEx.IsEmpty() && 0 != aBitmapEx.GetSizePixel().Width()
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&& 0 != aBitmapEx.GetSizePixel().Height())
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{
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basegfx::B2DRange aViewBox
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= rTarget.getB2DRange(drawinglayer::geometry::ViewInformation2D());
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const drawinglayer::primitive2d::Primitive2DReference xRef(
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new drawinglayer::primitive2d::BitmapPrimitive2D(
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aBitmapEx, basegfx::utils::createScaleTranslateB2DHomMatrix(
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aViewBox.getRange(), aViewBox.getMinimum())));
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rTarget = drawinglayer::primitive2d::Primitive2DContainer{ xRef };
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}
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pParent->addGraphicSourceToMapper(maResult, rTarget);
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}
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} // end of namespace svgio::svgreader
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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