| /************************************************************** |
| * |
| * 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 <svgio/svgreader/svgstylenode.hxx> |
| #include <svgio/svgreader/svgdocument.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| 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 |
