242b7d0162
Change-Id: I100256b63fadeb4a0e4b8e4cbb67e58d2a1ce433 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137096 Tested-by: Jenkins Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org>
503 lines
15 KiB
C++
503 lines
15 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 <svggradientnode.hxx>
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#include <svgdocument.hxx>
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#include <svggradientstopnode.hxx>
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#include <o3tl/string_view.hxx>
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#include <osl/diagnose.h>
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namespace svgio::svgreader
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{
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void SvgGradientNode::tryToFindLink()
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{
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if(!mpXLink && !maXLink.isEmpty())
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{
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mpXLink = dynamic_cast< const SvgGradientNode* >(getDocument().findSvgNodeById(maXLink));
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}
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}
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SvgGradientNode::SvgGradientNode(
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SVGToken aType,
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SvgDocument& rDocument,
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SvgNode* pParent)
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: SvgNode(aType, rDocument, pParent),
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maSvgStyleAttributes(*this),
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maGradientUnits(SvgUnits::objectBoundingBox),
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maSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Pad),
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mbResolvingLink(false),
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mpXLink(nullptr)
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{
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OSL_ENSURE(aType == SVGToken::LinearGradient || aType == SVGToken::RadialGradient, "SvgGradientNode should only be used for Linear and Radial gradient (!)");
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}
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SvgGradientNode::~SvgGradientNode()
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{
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// do NOT delete mpXLink, it's only referenced, not owned
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}
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const SvgStyleAttributes* SvgGradientNode::getSvgStyleAttributes() const
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{
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return checkForCssStyle(
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SVGToken::LinearGradient == getType() ? OUString("linearGradient") : OUString("radialGradient"),
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maSvgStyleAttributes);
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}
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void SvgGradientNode::parseAttribute(const OUString& rTokenName, SVGToken aSVGToken, const OUString& aContent)
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{
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// call parent
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SvgNode::parseAttribute(rTokenName, aSVGToken, aContent);
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// read style attributes
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maSvgStyleAttributes.parseStyleAttribute(aSVGToken, aContent);
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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::X1:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maX1 = aNum;
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}
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break;
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}
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case SVGToken::Y1:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maY1 = aNum;
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}
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break;
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}
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case SVGToken::X2:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maX2 = aNum;
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}
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break;
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}
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case SVGToken::Y2:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maY2 = aNum;
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}
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break;
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}
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case SVGToken::Cx:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maCx = aNum;
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}
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break;
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}
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case SVGToken::Cy:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maCy = aNum;
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}
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break;
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}
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case SVGToken::Fx:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maFx = aNum;
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}
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break;
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}
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case SVGToken::Fy:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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maFy = aNum;
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}
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break;
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}
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case SVGToken::R:
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{
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SvgNumber aNum;
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if(readSingleNumber(aContent, aNum))
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{
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if(aNum.isPositive())
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{
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maR = aNum;
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}
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}
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break;
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}
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case SVGToken::GradientUnits:
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{
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if(!aContent.isEmpty())
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{
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if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(aContent), commonStrings::aStrUserSpaceOnUse))
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{
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setGradientUnits(SvgUnits::userSpaceOnUse);
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}
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else if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(aContent), commonStrings::aStrObjectBoundingBox))
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{
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setGradientUnits(SvgUnits::objectBoundingBox);
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}
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}
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break;
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}
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case SVGToken::SpreadMethod:
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{
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if(!aContent.isEmpty())
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{
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if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(aContent), u"pad"))
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{
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setSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Pad);
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}
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else if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(aContent), u"reflect"))
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{
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setSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Reflect);
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}
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else if(o3tl::equalsIgnoreAsciiCase(o3tl::trim(aContent), u"repeat"))
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{
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setSpreadMethod(drawinglayer::primitive2d::SpreadMethod::Repeat);
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}
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}
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break;
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}
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case SVGToken::GradientTransform:
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{
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const basegfx::B2DHomMatrix aMatrix(readTransform(aContent, *this));
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if(!aMatrix.isIdentity())
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{
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setGradientTransform(aMatrix);
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}
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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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readLocalLink(aContent, maXLink);
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tryToFindLink();
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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 SvgGradientNode::collectGradientEntries(drawinglayer::primitive2d::SvgGradientEntryVector& aVector) const
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{
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if(getChildren().empty())
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{
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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mpXLink->collectGradientEntries(aVector);
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mbResolvingLink = false;
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}
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}
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else
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{
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const sal_uInt32 nCount(getChildren().size());
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for(sal_uInt32 a(0); a < nCount; a++)
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{
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const SvgGradientStopNode* pCandidate = dynamic_cast< const SvgGradientStopNode* >(getChildren()[a].get());
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if(pCandidate)
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{
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const SvgStyleAttributes* pStyle = pCandidate->getSvgStyleAttributes();
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if(pStyle)
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{
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const SvgNumber aOffset(pCandidate->getOffset());
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double fOffset(0.0);
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if(SvgUnit::percent == aOffset.getUnit())
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{
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// percent is not relative to distances in ColorStop context, solve locally
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fOffset = aOffset.getNumber() * 0.01;
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}
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else
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{
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fOffset = aOffset.solve(*this);
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}
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if(fOffset < 0.0)
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{
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OSL_ENSURE(false, "OOps, SvgGradientStopNode with offset out of range (!)");
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fOffset = 0.0;
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}
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else if(fOffset > 1.0)
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{
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OSL_ENSURE(false, "OOps, SvgGradientStopNode with offset out of range (!)");
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fOffset = 1.0;
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}
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aVector.emplace_back(
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fOffset,
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pStyle->getStopColor(),
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pStyle->getStopOpacity().solve(*this));
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}
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else
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{
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OSL_ENSURE(false, "OOps, SvgGradientStopNode without Style (!)");
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}
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}
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}
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}
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}
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SvgNumber SvgGradientNode::getX1() const
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{
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if(maX1.isSet())
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{
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return maX1;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getX1();
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mbResolvingLink = false;
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return ret;
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}
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// default is 0%
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return SvgNumber(0.0, SvgUnit::percent);
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}
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SvgNumber SvgGradientNode::getY1() const
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{
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if(maY1.isSet())
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{
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return maY1;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getY1();
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mbResolvingLink = false;
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return ret;
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}
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// default is 0%
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return SvgNumber(0.0, SvgUnit::percent);
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}
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SvgNumber SvgGradientNode::getX2() const
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{
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if(maX2.isSet())
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{
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return maX2;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getX2();
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mbResolvingLink = false;
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return ret;
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}
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// default is 100%
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return SvgNumber(100.0, SvgUnit::percent);
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}
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SvgNumber SvgGradientNode::getY2() const
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{
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if(maY2.isSet())
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{
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return maY2;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getY2();
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mbResolvingLink = false;
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return ret;
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}
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// default is 0%
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return SvgNumber(0.0, SvgUnit::percent);
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}
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SvgNumber SvgGradientNode::getCx() const
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{
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if(maCx.isSet())
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{
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return maCx;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getCx();
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mbResolvingLink = false;
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return ret;
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}
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// default is 50%
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return SvgNumber(50.0, SvgUnit::percent);
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}
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SvgNumber SvgGradientNode::getCy() const
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{
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if(maCy.isSet())
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{
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return maCy;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getCy();
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mbResolvingLink = false;
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return ret;
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}
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// default is 50%
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return SvgNumber(50.0, SvgUnit::percent);
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}
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SvgNumber SvgGradientNode::getR() const
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{
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if(maR.isSet())
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{
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return maR;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getR();
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mbResolvingLink = false;
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return ret;
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}
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// default is 50%
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return SvgNumber(50.0, SvgUnit::percent);
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}
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const SvgNumber* SvgGradientNode::getFx() const
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{
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if(maFx.isSet())
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{
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return &maFx;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getFx();
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mbResolvingLink = false;
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return ret;
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}
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return nullptr;
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}
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const SvgNumber* SvgGradientNode::getFy() const
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{
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if(maFy.isSet())
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{
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return &maFy;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getFy();
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mbResolvingLink = false;
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return ret;
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}
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return nullptr;
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}
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std::optional<basegfx::B2DHomMatrix> SvgGradientNode::getGradientTransform() const
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{
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if(mpaGradientTransform)
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{
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return mpaGradientTransform;
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}
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const_cast< SvgGradientNode* >(this)->tryToFindLink();
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if (mpXLink && !mbResolvingLink)
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{
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mbResolvingLink = true;
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auto ret = mpXLink->getGradientTransform();
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mbResolvingLink = false;
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return ret;
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}
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return std::nullopt;
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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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