src/xmlwork.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2003 by Sébastien Laoût                                 *
   3  *   slaout@linux62.org                                                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include <qstring.h>
  22 #include <qdom.h>
  23 #include <qstringlist.h>
  24 #include <qfile.h>
  25
  26 #include "xmlwork.h"
  27
  28 QDomDocument* XMLWork::openFile(const QString &name, const QString &filePath)
  29 {
  30         QDomDocument *doc = new QDomDocument(name);
  31         QFile file(filePath);
  32         if ( ! file.open(QIODevice::ReadOnly) ) {
  33                 // QMessageBox::information(this, "Load an XML file", "Error : un-openable file");
  34                 delete doc;
  35                 return 0;
  36         }
  37         if ( ! doc->setContent(&file) ) {
  38                 // QMessageBox::information(this, "Load an XML file", "Error : malformed content");
  39                 file.close();
  40                 delete doc;
  41                 return 0;
  42         }
  43         file.close();
  44         return doc;
  45 }
  46
  47 QDomElement XMLWork::getElement(const QDomElement &startElement, const QString &elementPath)
  48 {
  49         QStringList elements = QStringList::split("/", elementPath, false);
  50         QDomNode n = startElement.firstChild();
  51         for (unsigned int i = 0; i < elements.count(); ++i) {               // For each elements
  52                 while ( ! n.isNull() ) {                                        // Browse theire sub elements
  53                         QDomElement e = n.toElement();                              //  and search the good one
  54                         if ( (!e.isNull()) && e.tagName() == *elements.at(i) ) {    // If found
  55                                 if ( i + 1 == elements.count() )                        // And if it is the asked element
  56                                         return e;                                           // Return the first corresponding
  57                                 else {                                                  // Or if it is an intermediate element
  58                                         n = e.firstChild();                                 // Continue with the next sub element
  59                                         break;
  60                                 }
  61                         }
  62                         n = n.nextSibling();
  63                 }
  64         }
  65         return QDomElement();                                               // Not found !
  66 }
  67
  68 QString XMLWork::getElementText(const QDomElement &startElement, const QString &elementPath, const QString &defaultTxt)
  69 {
  70         QDomElement e = getElement(startElement, elementPath);
  71         if (e.isNull())
  72                 return defaultTxt;
  73         else
  74                 return e.text();
  75 }
  76
  77 void XMLWork::addElement(QDomDocument &document, QDomElement &parent, const QString &name, const QString &text)
  78 {
  79         QDomElement tag = document.createElement(name);
  80         parent.appendChild(tag);
  81         QDomText content = document.createTextNode(text);
  82         tag.appendChild(content);
  83 }
  84
  85 bool XMLWork::trueOrFalse(const QString &value, bool defaultValue)
  86 {
  87         if ( value == "true"  || value == "1" || value == "on"  || value == "yes" )
  88                 return true;
  89         if ( value == "false" || value == "0" || value == "off" || value == "no"  )
  90                 return false;
  91         return defaultValue;
  92 }
  93
  94 QString XMLWork::trueOrFalse(bool value)
  95 {
  96         return value ? "true" : "false";
  97 }
  98
  99 QString XMLWork::innerXml(QDomElement &element)
 100 {
 101         QString inner;
 102         for (QDomNode n = element.firstChild(); !n.isNull(); n = n.nextSibling())
 103                 if (n.isCharacterData())
 104                         inner += n.toCharacterData().data();
 105                 else if (n.isElement()) {
 106                         QDomElement e = n.toElement();
 107                         inner += "<" + e.tagName() + ">" + innerXml(e) + "</" + e.tagName() + ">";
 108                 }
 109         return inner;
 110 }