5f98e35f81
visible children of an invisible parent are now visible Change-Id: I2eafbd15d22f54ec39f12bfd32175925ab8a6184 Reviewed-on: https://gerrit.libreoffice.org/12504 Reviewed-by: Caolán McNamara <caolanm@redhat.com> Tested-by: Caolán McNamara <caolanm@redhat.com>
710 lines
26 KiB
C++
710 lines
26 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/polygon/b2dpolypolygontools.hxx>
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#include <svgio/svgreader/svgdocument.hxx>
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#include <svgio/svgreader/svgnode.hxx>
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#include <svgio/svgreader/svgstyleattributes.hxx>
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#include <drawinglayer/primitive2d/objectinfoprimitive2d.hxx>
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#include <tools/urlobj.hxx>
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namespace svgio
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{
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namespace svgreader
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{
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/// #i125258#
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bool SvgNode::supportsParentStyle() const
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{
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return true;
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}
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const SvgStyleAttributes* SvgNode::getSvgStyleAttributes() const
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{
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return 0;
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}
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void SvgNode::fillCssStyleVectorUsingHierarchyAndSelectors(
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const OUString& rClassStr,
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const SvgNode& rCurrent,
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const OUString& aConcatenated)
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{
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const SvgDocument& rDocument = getDocument();
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if(rDocument.hasGlobalCssStyleAttributes())
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{
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const SvgNode* pParent = rCurrent.getParent();
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// check for ID (highest priority)
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if(rCurrent.getId())
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{
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const OUString& rId = *rCurrent.getId();
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if(rId.getLength())
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{
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const OUString aNewConcatenated(
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OUString::createFromAscii("#") +
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rId +
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aConcatenated);
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if(pParent)
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{
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// check for combined selectors at parent firstso that higher specificity will be in front
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fillCssStyleVectorUsingHierarchyAndSelectors(rClassStr, *pParent, aNewConcatenated);
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}
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const SvgStyleAttributes* pNew = rDocument.findGlobalCssStyleAttributes(aNewConcatenated);
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if(pNew)
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{
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// add CssStyle if found
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maCssStyleVector.push_back(pNew);
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}
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}
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}
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// check for 'class' references (a list of entries is allowed)
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if(rCurrent.getClass())
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{
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const OUString& rClassList = *rCurrent.getClass();
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const sal_Int32 nLen(rClassList.getLength());
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if(nLen)
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{
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std::vector< OUString > aParts;
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sal_Int32 nPos(0);
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OUStringBuffer aToken;
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while(nPos < nLen)
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{
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const sal_Int32 nInitPos(nPos);
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copyToLimiter(rClassList, sal_Unicode(' '), nPos, aToken, nLen);
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skip_char(rClassList, sal_Unicode(' '), nPos, nLen);
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const OUString aPart(aToken.makeStringAndClear().trim());
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if(aPart.getLength())
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{
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aParts.push_back(aPart);
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}
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if(nInitPos == nPos)
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{
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OSL_ENSURE(false, "Could not interpret on current position (!)");
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nPos++;
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}
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}
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for(sal_uInt32 a(0); a < aParts.size(); a++)
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{
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const OUString aNewConcatenated(
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OUString::createFromAscii(".") +
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aParts[a] +
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aConcatenated);
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if(pParent)
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{
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// check for combined selectors at parent firstso that higher specificity will be in front
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fillCssStyleVectorUsingHierarchyAndSelectors(rClassStr, *pParent, aNewConcatenated);
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}
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const SvgStyleAttributes* pNew = rDocument.findGlobalCssStyleAttributes(aNewConcatenated);
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if(pNew)
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{
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// add CssStyle if found
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maCssStyleVector.push_back(pNew);
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}
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}
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}
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}
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// check for class-dependent references to CssStyles
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if(!rClassStr.isEmpty())
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{
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OUString aNewConcatenated(aConcatenated);
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if(!rCurrent.getId() && !rCurrent.getClass() && 0 == aConcatenated.indexOf(rClassStr))
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{
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// no new CssStyle Selector and already starts with rClassStr, do not concatenate;
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// we pass an 'empty' node (in the sense of CssStyle Selector)
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}
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else
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{
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aNewConcatenated = rClassStr + aConcatenated;
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}
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if(pParent)
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{
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// check for combined selectors at parent firstso that higher specificity will be in front
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fillCssStyleVectorUsingHierarchyAndSelectors(rClassStr, *pParent, aNewConcatenated);
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}
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const SvgStyleAttributes* pNew = rDocument.findGlobalCssStyleAttributes(aNewConcatenated);
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if(pNew)
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{
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// add CssStyle if found
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maCssStyleVector.push_back(pNew);
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}
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}
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}
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}
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void SvgNode::fillCssStyleVector(const OUString& rClassStr)
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{
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OSL_ENSURE(!mbCssStyleVectorBuilt, "OOps, fillCssStyleVector called double ?!?");
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mbCssStyleVectorBuilt = true;
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// #i125293# If we have CssStyles we need to buuild a linked list of SvgStyleAttributes
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// which represent this for the current object. There are various methods to
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// specify CssStyles which need to be taken into account in a given order:
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// - local CssStyle (independent from global CssStyles at SvgDocument)
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// - 'id' CssStyle
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// - 'class' CssStyle(s)
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// - type-dependent elements (e..g. 'rect' for all rect elements)
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// - local attributes (rOriginal)
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// - inherited attributes (up the hierarchy)
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// The first four will be collected in maCssStyleVector for the current element
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// (once, this will not change) and be linked in the needed order using the
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// get/setCssStyleParent at the SvgStyleAttributes which will be used preferred in
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// member evaluation over the existing parent hierarchy
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// check for local CssStyle with highest priority
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if(mpLocalCssStyle)
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{
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// if we have one, use as first entry
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maCssStyleVector.push_back(mpLocalCssStyle);
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}
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// check the hierarchy for concatenated patterns of Selectors
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fillCssStyleVectorUsingHierarchyAndSelectors(rClassStr, *this, OUString());
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// #i125329# find Css selector '*', add as last element if found
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const SvgStyleAttributes* pNew = getDocument().findGlobalCssStyleAttributes("*");
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if(pNew)
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{
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// add CssStyle for selector '*' if found
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maCssStyleVector.push_back(pNew);
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}
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}
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const SvgStyleAttributes* SvgNode::checkForCssStyle(const OUString& rClassStr, const SvgStyleAttributes& rOriginal) const
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{
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if(!mbCssStyleVectorBuilt)
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{
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// build needed CssStyleVector for local node
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const_cast< SvgNode* >(this)->fillCssStyleVector(rClassStr);
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}
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if(maCssStyleVector.empty())
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{
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// return given original if no CssStlyes found
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return &rOriginal;
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}
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else
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{
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// #i125293# rOriginal will be the last element in the linked list; use no CssStyleParent
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// there (reset it) to ensure that the parent hierarchy will be used when it's base
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// is referenced. This new chaining inserts the CssStyles before the original style,
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// this makes the whole process much safer since the original style when used will
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// be not different to the situation without CssStyles; thus loops which may be caused
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// by trying to use the parent hierarchy of the owner of the style will be avoided
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// already in this mechanism. It's still good to keep the supportsParentStyle
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// from #i125258# in place, though.
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// This chain building using pointers will be done every time when checkForCssStyle
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// is used (not the search, only the chaining). This is needed since the CssStyles
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// themselves will be potentially used multiple times. It is not expensive since it's
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// only changing some pointers.
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// The alternative would be to create the style hierarchy for every element (or even
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// for the element containing the hierarchy) in a vector of pointers and to use that.
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// Resetting the CssStyleParent on rOriginal is probably not needeed
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// but simply safer to do.
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const_cast< SvgStyleAttributes& >(rOriginal).setCssStyleParent(0);
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// loop over the existing CssStyles and link them. There is a first one, take
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// as current
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SvgStyleAttributes* pCurrent = const_cast< SvgStyleAttributes* >(maCssStyleVector[0]);
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for(sal_uInt32 a(1); a < maCssStyleVector.size(); a++)
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{
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SvgStyleAttributes* pNext = const_cast< SvgStyleAttributes* >(maCssStyleVector[a]);
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pCurrent->setCssStyleParent(pNext);
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pCurrent = pNext;
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}
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// pCurrent is the last used CssStyle, let it point to the original style
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pCurrent->setCssStyleParent(&rOriginal);
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// return 1st CssStyle as style chain start element (only for the
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// local element, still no hierarchy used here)
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return maCssStyleVector[0];
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}
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}
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SvgNode::SvgNode(
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SVGToken aType,
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SvgDocument& rDocument,
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SvgNode* pParent)
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: maType(aType),
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mrDocument(rDocument),
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mpParent(pParent),
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mpAlternativeParent(0),
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maChildren(),
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mpId(0),
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mpClass(0),
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maXmlSpace(XmlSpace_notset),
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maDisplay(Display_inline),
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maCssStyleVector(),
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mpLocalCssStyle(0),
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mbCssStyleVectorBuilt(false)
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{
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OSL_ENSURE(SVGTokenUnknown != maType, "SvgNode with unknown type created (!)");
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if(pParent)
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{
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pParent->maChildren.push_back(this);
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}
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else
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{
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#ifdef DBG_UTIL
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if(SVGTokenSvg != getType())
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{
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OSL_ENSURE(false, "No parent for this node (!)");
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}
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#endif
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}
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}
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SvgNode::~SvgNode()
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{
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while(maChildren.size())
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{
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delete maChildren[maChildren.size() - 1];
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maChildren.pop_back();
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}
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if(mpId)
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{
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delete mpId;
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}
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if(mpClass)
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{
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delete mpClass;
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}
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if(mpLocalCssStyle)
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{
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delete mpLocalCssStyle;
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}
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}
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void SvgNode::readLocalCssStyle(const OUString& aContent)
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{
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if(!mpLocalCssStyle)
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{
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// create LocalCssStyle if needed but not yet added
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mpLocalCssStyle = new SvgStyleAttributes(*this);
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}
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else
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{
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// 2nd fill would be an error
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OSL_ENSURE(false, "Svg node has two local CssStyles, this may lead to problems (!)");
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}
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if(mpLocalCssStyle)
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{
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// parse and set values to it
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mpLocalCssStyle->readCssStyle(aContent);
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}
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else
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{
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OSL_ENSURE(false, "Could not get/create a local CssStyle for a node (!)");
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}
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}
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void SvgNode::parseAttributes(const com::sun::star::uno::Reference< com::sun::star::xml::sax::XAttributeList >& xAttribs)
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{
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// no longer need to pre-sort moving 'style' entries to the back so that
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// values get overwritten - that was the previous, not complete solution for
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// handling the priorities between svg and Css properties
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const sal_uInt32 nAttributes(xAttribs->getLength());
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for(sal_uInt32 a(0); a < nAttributes; a++)
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{
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const OUString aTokenName(xAttribs->getNameByIndex(a));
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const SVGToken aSVGToken(StrToSVGToken(aTokenName, false));
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parseAttribute(aTokenName, aSVGToken, xAttribs->getValueByIndex(a));
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}
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}
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Display getDisplayFromContent(const OUString& aContent)
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{
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if(!aContent.isEmpty())
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{
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if(aContent.startsWith("inline"))
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{
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return Display_inline;
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}
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else if(aContent.startsWith("none"))
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{
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return Display_none;
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}
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else if(aContent.startsWith("inherit"))
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{
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return Display_inherit;
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}
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else if(aContent.startsWith("block"))
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{
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return Display_block;
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}
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else if(aContent.startsWith("list-item"))
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{
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return Display_list_item;
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}
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else if(aContent.startsWith("run-in"))
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{
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return Display_run_in;
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}
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else if(aContent.startsWith("compact"))
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{
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return Display_compact;
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}
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else if(aContent.startsWith("marker"))
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{
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return Display_marker;
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}
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else if(aContent.startsWith("table"))
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{
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return Display_table;
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}
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else if(aContent.startsWith("inline-table"))
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{
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return Display_inline_table;
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}
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else if(aContent.startsWith("table-row-group"))
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{
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return Display_table_row_group;
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}
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else if(aContent.startsWith("table-header-group"))
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{
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return Display_table_header_group;
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}
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else if(aContent.startsWith("table-footer-group"))
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{
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return Display_table_footer_group;
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}
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else if(aContent.startsWith("table-row"))
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{
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return Display_table_row;
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}
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else if(aContent.startsWith("table-column-group"))
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{
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return Display_table_column_group;
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}
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else if(aContent.startsWith("table-column"))
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{
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return Display_table_column;
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}
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else if(aContent.startsWith("table-cell"))
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{
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return Display_table_cell;
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}
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else if(aContent.startsWith("table-caption"))
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{
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return Display_table_caption;
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}
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}
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// return the default
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return Display_inline;
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}
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void SvgNode::parseAttribute(const OUString& /*rTokenName*/, SVGToken aSVGToken, const OUString& aContent)
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{
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switch(aSVGToken)
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{
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case SVGTokenId:
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{
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if(!aContent.isEmpty())
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{
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setId(&aContent);
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}
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break;
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}
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case SVGTokenClass:
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{
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if(!aContent.isEmpty())
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{
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setClass(&aContent);
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}
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break;
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}
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case SVGTokenXmlSpace:
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{
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if(!aContent.isEmpty())
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{
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if(aContent.startsWith("default"))
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{
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setXmlSpace(XmlSpace_default);
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}
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else if(aContent.startsWith("preserve"))
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{
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setXmlSpace(XmlSpace_preserve);
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}
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}
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break;
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}
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case SVGTokenDisplay:
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{
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if(!aContent.isEmpty())
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{
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setDisplay(getDisplayFromContent(aContent));
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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 SvgNode::decomposeSvgNode(drawinglayer::primitive2d::Primitive2DSequence& rTarget, bool bReferenced) const
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{
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if(Display_none == getDisplay())
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{
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return;
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}
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if(!bReferenced)
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{
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if(SVGTokenDefs == getType() ||
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SVGTokenSymbol == getType() ||
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SVGTokenClipPathNode == getType() ||
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SVGTokenMask == getType() ||
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SVGTokenMarker == getType() ||
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SVGTokenPattern == getType())
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{
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// do not decompose defs or symbol nodes (these hold only style-like
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// objects which may be used by referencing them) except when doing
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// so controlled referenced
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// also do not decompose ClipPaths and Masks. These should be embedded
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// in a defs node (which gets not decomposed by itself), but you never
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// know
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// also not directly used are Markers and Patterns, only indirecty used
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// by reference
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// #i121656# also do not decompose nodes which have display="none" set
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// as property
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return;
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}
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}
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const SvgNodeVector& rChildren = getChildren();
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if(!rChildren.empty())
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{
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const sal_uInt32 nCount(rChildren.size());
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for(sal_uInt32 a(0); a < nCount; a++)
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{
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SvgNode* pCandidate = rChildren[a];
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if(pCandidate && Display_none != pCandidate->getDisplay())
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{
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const SvgNodeVector& rGrandChildren = pCandidate->getChildren();
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const SvgStyleAttributes* pChildStyles = pCandidate->getSvgStyleAttributes();
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// decompose:
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// - visible terminal nodes
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// - all non-terminal nodes (might contain visible nodes down the hierarchy)
|
|
if( !rGrandChildren.empty() || ( pChildStyles && (Visibility_visible == pChildStyles->getVisibility())) )
|
|
{
|
|
drawinglayer::primitive2d::Primitive2DSequence aNewTarget;
|
|
pCandidate->decomposeSvgNode(aNewTarget, bReferenced);
|
|
|
|
if(aNewTarget.hasElements())
|
|
{
|
|
drawinglayer::primitive2d::appendPrimitive2DSequenceToPrimitive2DSequence(rTarget, aNewTarget);
|
|
}
|
|
}
|
|
}
|
|
else if(!pCandidate)
|
|
{
|
|
OSL_ENSURE(false, "Null-Pointer in child node list (!)");
|
|
}
|
|
}
|
|
|
|
if(rTarget.hasElements())
|
|
{
|
|
const SvgStyleAttributes* pStyles = getSvgStyleAttributes();
|
|
if(pStyles)
|
|
{
|
|
// check if we have Title or Desc
|
|
const OUString& rTitle = pStyles->getTitle();
|
|
const OUString& rDesc = pStyles->getDesc();
|
|
|
|
if(!rTitle.isEmpty() || !rDesc.isEmpty())
|
|
{
|
|
// default object name is empty
|
|
OUString aObjectName;
|
|
|
|
// use path as object name when outmost element
|
|
if(SVGTokenSvg == getType())
|
|
{
|
|
aObjectName = getDocument().getAbsolutePath();
|
|
|
|
if(!aObjectName.isEmpty())
|
|
{
|
|
INetURLObject aURL(aObjectName);
|
|
|
|
aObjectName = aURL.getName(
|
|
INetURLObject::LAST_SEGMENT,
|
|
true,
|
|
INetURLObject::DECODE_WITH_CHARSET);
|
|
}
|
|
}
|
|
|
|
// pack in ObjectInfoPrimitive2D group
|
|
const drawinglayer::primitive2d::Primitive2DReference xRef(
|
|
new drawinglayer::primitive2d::ObjectInfoPrimitive2D(
|
|
rTarget,
|
|
aObjectName,
|
|
rTitle,
|
|
rDesc));
|
|
|
|
rTarget = drawinglayer::primitive2d::Primitive2DSequence(&xRef, 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
const basegfx::B2DRange SvgNode::getCurrentViewPort() const
|
|
{
|
|
if(getParent())
|
|
{
|
|
return getParent()->getCurrentViewPort();
|
|
}
|
|
else
|
|
{
|
|
return basegfx::B2DRange(); // return empty B2DRange
|
|
}
|
|
}
|
|
|
|
double SvgNode::getCurrentFontSizeInherited() const
|
|
{
|
|
if(getParent())
|
|
{
|
|
return getParent()->getCurrentFontSize();
|
|
}
|
|
else
|
|
{
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double SvgNode::getCurrentFontSize() const
|
|
{
|
|
if(getSvgStyleAttributes())
|
|
return getSvgStyleAttributes()->getFontSize().solve(*this, xcoordinate);
|
|
|
|
return getCurrentFontSizeInherited();
|
|
}
|
|
|
|
double SvgNode::getCurrentXHeightInherited() const
|
|
{
|
|
if(getParent())
|
|
{
|
|
return getParent()->getCurrentXHeight();
|
|
}
|
|
else
|
|
{
|
|
return 0.0;
|
|
}
|
|
}
|
|
|
|
double SvgNode::getCurrentXHeight() const
|
|
{
|
|
if(getSvgStyleAttributes())
|
|
// for XHeight, use FontSize currently
|
|
return getSvgStyleAttributes()->getFontSize().solve(*this, ycoordinate);
|
|
|
|
return getCurrentXHeightInherited();
|
|
}
|
|
|
|
void SvgNode::setId(const OUString* pfId)
|
|
{
|
|
if(mpId)
|
|
{
|
|
mrDocument.removeSvgNodeFromMapper(*mpId);
|
|
delete mpId;
|
|
mpId = 0;
|
|
}
|
|
|
|
if(pfId)
|
|
{
|
|
mpId = new OUString(*pfId);
|
|
mrDocument.addSvgNodeToMapper(*mpId, *this);
|
|
}
|
|
}
|
|
|
|
void SvgNode::setClass(const OUString* pfClass)
|
|
{
|
|
if(mpClass)
|
|
{
|
|
mrDocument.removeSvgNodeFromMapper(*mpClass);
|
|
delete mpClass;
|
|
mpClass = 0;
|
|
}
|
|
|
|
if(pfClass)
|
|
{
|
|
mpClass = new OUString(*pfClass);
|
|
mrDocument.addSvgNodeToMapper(*mpClass, *this);
|
|
}
|
|
}
|
|
|
|
XmlSpace SvgNode::getXmlSpace() const
|
|
{
|
|
if(maXmlSpace != XmlSpace_notset)
|
|
{
|
|
return maXmlSpace;
|
|
}
|
|
|
|
if(getParent())
|
|
{
|
|
return getParent()->getXmlSpace();
|
|
}
|
|
|
|
// default is XmlSpace_default
|
|
return XmlSpace_default;
|
|
}
|
|
|
|
} // end of namespace svgreader
|
|
} // end of namespace svgio
|
|
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|