119 lines
4.3 KiB
C++
119 lines
4.3 KiB
C++
// SPDX-License-Identifier: LGPL-2.1-or-later
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/***************************************************************************
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* Copyright (c) 2023 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of FreeCAD. *
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* *
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* FreeCAD is free software: you can redistribute it and/or modify it *
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* under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation, either version 2.1 of the *
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* License, or (at your option) any later version. *
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* *
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* FreeCAD is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public *
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* License along with FreeCAD. If not, see *
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* <https://www.gnu.org/licenses/>. *
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* *
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**************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <QDomDocument>
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#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
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# include "QDomNodeModel.h"
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# include <QXmlQuery>
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# include <QXmlResultItems>
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#endif
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#endif
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#include "XMLQuery.h"
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using namespace TechDraw;
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XMLQuery::XMLQuery(QDomDocument& dom)
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: domDocument(dom)
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{
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}
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#if QT_VERSION < QT_VERSION_CHECK(6,0,0)
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bool XMLQuery::processItems(const QString& queryStr, const std::function<bool(QDomElement&)>& process)
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{
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QXmlQuery query(QXmlQuery::XQuery10);
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QDomNodeModel model(query.namePool(), domDocument);
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QDomElement symbolDocElem = domDocument.documentElement();
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query.setFocus(QXmlItem(model.fromDomNode(symbolDocElem)));
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query.setQuery(queryStr);
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QXmlResultItems queryResult;
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query.evaluateTo(&queryResult);
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while (!queryResult.next().isNull()) {
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QDomElement tspanElement =
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model.toDomNode(queryResult.current().toNodeModelIndex()).toElement();
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if (!process(tspanElement)) {
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return false;
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}
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}
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return true;
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}
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#else
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// A helper function that traverses all child elements recursively and check for
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// elements of name "text" with an attribute "freecad:editable"
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// If the query string contains "tspan" the first sub-element is used or the
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// found text element otherwise.
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static bool processElements(const QDomElement& element, const QString& queryStr,
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const std::function<bool(QDomElement&)>& process)
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{
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bool find_tspan = queryStr.contains(QLatin1String("tspan"));
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QDomNodeList editable = element.elementsByTagName(QString(QLatin1String("text")));
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if (editable.count() > 0) {
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for(int i = 0; i < editable.count(); i++) {
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QDomNode node = editable.item(i);
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QDomElement element = node.toElement();
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if (element.hasAttribute(QString(QLatin1String("freecad:editable")))) {
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if (find_tspan) {
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element = element.firstChildElement();
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}
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if (!process(element)) {
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return false;
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}
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}
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}
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}
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else {
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QDomElement child;
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child = element.firstChildElement();
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while (!child.isNull()) {
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if (!processElements(child, queryStr, process)) {
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return false;
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}
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child = child.nextSiblingElement();
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}
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}
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return true;
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}
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bool XMLQuery::processItems(const QString& queryStr, const std::function<bool(QDomElement&)>& process)
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{
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// The actual query string is of the form "//text[@freecad:editable]"
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// or "//text[@freecad:editable]/tspan"
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QDomElement root = domDocument.documentElement();
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if (!root.isNull()) {
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processElements(root, queryStr, process);
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}
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return true;
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}
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#endif
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