/************************************************************** * * 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 * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * KIND, either express or implied. See the License for the * specific language governing permissions and limitations * under the License. * *************************************************************/ // MARKER(update_precomp.py): autogen include statement, do not remove #include "precompiled_svgio.hxx" #include #include ////////////////////////////////////////////////////////////////////////////// namespace svgio { namespace svgreader { SvgStyleNode::SvgStyleNode( SvgDocument& rDocument, SvgNode* pParent) : SvgNode(SVGTokenStyle, rDocument, pParent), maSvgStyleAttributes(), mbTextCss(false) { } SvgStyleNode::~SvgStyleNode() { while(!maSvgStyleAttributes.empty()) { delete *(maSvgStyleAttributes.end() - 1); maSvgStyleAttributes.pop_back(); } } // #125258# no parent when we are a CssStyle holder to break potential loops because // when using CssStyles we jump uncontrolled inside the node tree hierarchy bool SvgStyleNode::supportsParentStyle() const { if(isTextCss()) { return false; } // call parent return SvgNode::supportsParentStyle(); } void SvgStyleNode::parseAttribute(const rtl::OUString& rTokenName, SVGToken aSVGToken, const rtl::OUString& aContent) { // call parent SvgNode::parseAttribute(rTokenName, aSVGToken, aContent); // parse own switch(aSVGToken) { case SVGTokenType: { if(aContent.getLength()) { static rtl::OUString aStrTextCss(rtl::OUString::createFromAscii("text/css")); if(aContent.match(aStrTextCss)) { setTextCss(true); } } break; } default: { break; } } } void SvgStyleNode::addCssStyleSheet(const rtl::OUString& aSelectors, const SvgStyleAttributes& rNewStyle) { // aSelectors: CssStyle selectors, any combination, no comma separations, no spaces at start/end // rNewStyle: the already preapared style to register on that name if(aSelectors.getLength()) { std::vector< rtl::OUString > aSelectorParts; const sal_Int32 nLen(aSelectors.getLength()); sal_Int32 nPos(0); rtl::OUStringBuffer aToken; // split into single tokens (currently only space separator) while(nPos < nLen) { const sal_Int32 nInitPos(nPos); copyToLimiter(aSelectors, sal_Unicode(' '), nPos, aToken, nLen); skip_char(aSelectors, sal_Unicode(' '), nPos, nLen); const rtl::OUString aSelectorPart(aToken.makeStringAndClear().trim()); if(aSelectorPart.getLength()) { aSelectorParts.push_back(aSelectorPart); } if(nInitPos == nPos) { OSL_ENSURE(false, "Could not interpret on current position (!)"); nPos++; } } if(aSelectorParts.size()) { rtl::OUString aConcatenatedSelector; // re-combine without spaces, create a unique name (for now) for(sal_uInt32 a(0); a < aSelectorParts.size(); a++) { aConcatenatedSelector += aSelectorParts[a]; } // CssStyles in SVG are currently not completely supported; the current idea for // supporting the needed minimal set is to register CssStyles associated to a string // which is just the space-char cleaned, concatenated Selectors. The part to 'match' // these is in fillCssStyleVectorUsingHierarchyAndSelectors. There, the same string is // built up using the priorities of local CssStyle, Id, Class and other info combined // with the existing hierarchy. This creates a specificity- and priority-sorted local // list for each node which is then chained using get/setCssStyleParent. // The current solution is capable of solving space-separated selectors which can be // mixed between Id, Class and type specifiers. // When CssStyles need more specific solving, the start point is here; remember the // needed infos not in maIdStyleTokenMapperList at the document, but select evtl. // more specific infos there in a class capable of handling more complex matchings. // Additionally fillCssStyleVector (or the mechanism above that when a linked list of // SvgStyleAttributes will not do it) will have to be adapted to make use of it. // register new style at document for (evtl. concatenated) stylename const_cast< SvgDocument& >(getDocument()).addSvgStyleAttributesToMapper(aConcatenatedSelector, rNewStyle); } } } void SvgStyleNode::addCssStyleSheet(const rtl::OUString& aSelectors, const rtl::OUString& aContent) { // aSelectors: possible comma-separated list of CssStyle definitions, no spaces at start/end // aContent: the svg style definitions as string if(aSelectors.getLength() && aContent.getLength()) { // create new style and add to local list (for ownership control) SvgStyleAttributes* pNewStyle = new SvgStyleAttributes(*this); maSvgStyleAttributes.push_back(pNewStyle); // fill with content pNewStyle->readCssStyle(aContent); // comma-separated split (Css abbreviation for same style for multiple selectors) const sal_Int32 nLen(aSelectors.getLength()); sal_Int32 nPos(0); rtl::OUStringBuffer aToken; while(nPos < nLen) { const sal_Int32 nInitPos(nPos); copyToLimiter(aSelectors, sal_Unicode(','), nPos, aToken, nLen); skip_char(aSelectors, sal_Unicode(' '), sal_Unicode(','), nPos, nLen); const rtl::OUString aSingleName(aToken.makeStringAndClear().trim()); if(aSingleName.getLength()) { addCssStyleSheet(aSingleName, *pNewStyle); } if(nInitPos == nPos) { OSL_ENSURE(false, "Could not interpret on current position (!)"); nPos++; } } } } void SvgStyleNode::addCssStyleSheet(const rtl::OUString& aSelectorsAndContent) { const sal_Int32 nLen(aSelectorsAndContent.getLength()); if(nLen) { sal_Int32 nPos(0); rtl::OUStringBuffer aToken; while(nPos < nLen) { // read the full selectors (may be multiple, comma-separated) const sal_Int32 nInitPos(nPos); skip_char(aSelectorsAndContent, sal_Unicode(' '), nPos, nLen); copyToLimiter(aSelectorsAndContent, sal_Unicode('{'), nPos, aToken, nLen); skip_char(aSelectorsAndContent, sal_Unicode(' '), sal_Unicode('{'), nPos, nLen); const rtl::OUString aSelectors(aToken.makeStringAndClear().trim()); rtl::OUString aContent; if(aSelectors.getLength() && nPos < nLen) { // isolate content as text, embraced by '{' and '}' copyToLimiter(aSelectorsAndContent, sal_Unicode('}'), nPos, aToken, nLen); skip_char(aSelectorsAndContent, sal_Unicode(' '), sal_Unicode('}'), nPos, nLen); aContent = aToken.makeStringAndClear().trim(); } if(aSelectors.getLength() && aContent.getLength()) { addCssStyleSheet(aSelectors, aContent); } if(nInitPos == nPos) { OSL_ENSURE(false, "Could not interpret on current position (!)"); nPos++; } } } } } // end of namespace svgreader } // end of namespace svgio ////////////////////////////////////////////////////////////////////////////// // eof