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afutrainer/catalog.cpp

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/***************************************************************************
* Copyright (C) 2003-2007 by Oliver Saal *
* osaal@gmx.de *
* http://www.oliver-saal.de/software/afutrainer/ *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "catalog.h"
#include "osziparchive.h"
#include "tools.h"
#include <qdir.h>
#include <qfile.h>
#include <qmessagebox.h>
#include <qtextstream.h>
#include <qvariant.h>
CCatalog::~CCatalog()
{
qDeleteAll(m_listFiles);
}
void CCatalog::clear()
{
CChapter::clear();
m_bMixAnswers = true;
m_bSort = false;
m_strFileName.clear();
m_listHint.clear();
m_strUniqueName.clear();
qDeleteAll(m_listFiles);
m_strPublisher.clear();
m_strContact.clear();
m_dateValidFrom = QDate();
m_dateValidUntil = QDate();
m_dateCreated = QDate();
m_datePublished = QDate();
m_strVersion.clear();
m_listExam.clear();
m_listExamStat.clear();
}
bool CCatalog::isEmpty()
{
return m_strText.isEmpty();
}
bool CCatalog::isValid() const
{
if (m_dateValidFrom.isValid() && QDate::currentDate() < m_dateValidFrom) return false;
if (m_dateValidUntil.isValid() && QDate::currentDate() > m_dateValidUntil) return false;
return true;
}
bool CCatalog::hasHints (const QString& strQuestionId) const
{
for (int i=0; i<m_listHint.size(); i++)
{
if (m_listHint.at(i).hasQuestion(strQuestionId)) return true;
}
return false;
}
QString CCatalog::hintText (const QString& strQuestionId) const
{
QString str;
if (strQuestionId.isEmpty()) return QString();
for (int i=0; i<m_listHint.size(); i++)
{
if (m_listHint.at(i).hasQuestion(strQuestionId))
str += m_listHint[i].showText();
}
return str;
}
bool CCatalog::load (const QString& strFileName, QWidget *pParent)
{
QDomDocument doc;
QDomElement elemRoot, e;
QDomNode n;
QString str, strXML;
int iErrLine, iErrCol;
double dVersion=0.0;
CChapter *pChapter=0;
if (strFileName.right(3).toLower() != "aqz") return false;
CZipArchive zip;
if (!zip.open(strFileName, CZipArchive::OpenReadOnly))
{
QMessageBox::critical(pParent, pParent->tr("Datei-Fehler"), pParent->tr("Konnte folgende Datei nicht zum Lesen öffnen:\n%1").arg(strFileName));
return false;
}
// Fragen entpacken
CZipFile *pzfQuestions = zip.findFile("questions.xml");
if (pzfQuestions == 0)
{
QMessageBox::critical(pParent, pParent->tr("Datei-Fehler"), pParent->tr("Konnte in der Datei '%1' keine Fragen finden.").arg(strFileName));
return false;
}
strXML = QString::fromUtf8(pzfQuestions->deflateToByteArray());
clear();
// Alle Grafiken in temp. Dateien entpacken
// pParent->setCursor(Qt::WaitCursor);
for (int i=0; i<zip.fileCount(); i++)
{
CZipFile *pzf = zip.fileAt(i);
str = pzf->fileName().right(3);
if (str == "png" || str == "jpg" || str == "gif" || str == "bmp")
{ // Datei entpacken und Pfade im XML anpassen
str = QDir::temp().absoluteFilePath(pzf->fileName()+".XXXXXX");
QTemporaryFile *ptf = new QTemporaryFile(str);
ptf->open();
str = ptf->fileName();
pzf->deflateToFile(*ptf);
ptf->close();
m_listFiles.append(ptf);
strXML.replace(pzf->fileName(), str);
//qDebug ("Deflating %s to %s", qPrintable(pzf->fileName()), qPrintable(str));
}
}
// pParent->setCursor(Qt::ArrowCursor);
if (!doc.setContent(strXML, true, &str, &iErrLine, &iErrCol))
{
QMessageBox::critical(pParent, pParent->tr("XML-Fehler"), pParent->tr("Fragenkatalog: ") + strFileName + "\n" + str + "\n" + QString (pParent->tr("Zeile: %1 Spalte %2")).arg(iErrLine).arg(iErrCol));
return false;
}
elemRoot = doc.documentElement ();
if (elemRoot.tagName() != "aqdf")
{
QMessageBox::critical(pParent, pParent->tr("Datei-Fehler"), pParent->tr("Unbekanntes XML-Datenformat '%1'.").arg(elemRoot.tagName()));
return false;
}
//m_strText = elemRoot.attribute ("name");
m_dateCreated = QDate::fromString(elemRoot.attribute("created"), Qt::ISODate);
dVersion = elemRoot.attribute("version").toDouble();
if (dVersion != 1.0)
{
QMessageBox::information(pParent, pParent->tr("Information"), pParent->tr("Kann die Dateiversion %1 des Fragenkatalogs '%2' nicht lesen.").arg(dVersion).arg(strFileName));
return false;
}
n = elemRoot.firstChild();
while (!n.isNull())
{
if (n.isElement ())
{
e = n.toElement ();
if (e.tagName() == QString ("chapter"))
{
pChapter = new CChapter();
if (pChapter->load (e))
appendChapter(pChapter);
else
delete pChapter;
}
else if (e.tagName() == QString ("exam"))
{
CExam exam;
if (exam.load(e)) m_listExam.append(exam);
}
else if (e.tagName () == "hint")
{
CHint hint;
if (hint.load (e))
m_listHint.append (hint);
}
else if (e.tagName () == "title")
{
m_strText = e.text();
m_strUniqueName = e.attribute("unique");
}
else if (e.tagName () == "comment")
m_strComment = e.text();
else if (e.tagName () == "contact")
m_strContact = e.text();
else if (e.tagName () == "publisher")
m_strPublisher = e.text();
else if (e.tagName() == "valid")
{
m_dateValidFrom = QDate::fromString(e.attribute("from"), Qt::ISODate);
m_dateValidUntil = QDate::fromString(e.attribute("until"), Qt::ISODate);
}
else if (e.tagName() == "version")
{
m_datePublished = QDate::fromString(e.attribute("published"), Qt::ISODate);
m_strVersion = e.text();
}
else if (e.tagName() == "options")
{
m_bMixAnswers = QVariant(e.attribute("mixanswers", "true")).toBool();
m_bSort = QVariant(e.attribute("sort", "false")).toBool();
}
}
n = n.nextSibling();
}
if (m_strUniqueName.isEmpty())
m_strUniqueName = QDir(strFileName).dirName();
if (m_bSort) sortAll();
loadStatistic (pParent);
updateStatistic();
m_strFileName = strFileName;
return true;
}
bool CCatalog::save (const QString& strFileName, QWidget *pParent)
{
QFile file (strFileName);
if (strFileName.isEmpty()) return false;
if (!file.open(QIODevice::WriteOnly))
{
QMessageBox::critical(pParent, QString(pParent->tr("Datei-Fehler")), pParent->tr("Konnte folgende Datei nicht zum Schreiben öffnen:\n")+strFileName);
return false;
}
QTextStream out(&file);
QDomDocument doc("afutrainer");
QDomElement elemRoot = doc.createElement("afutrainer");
//elemRoot.setAttribute("name", name());
elemRoot.setAttribute("version", 3.0);
elemRoot.setAttribute("created", QDate::currentDate().toString(Qt::ISODate));
doc.appendChild(elemRoot);
// save unique name
QDomElement elemTitle = createXmlTextElement("title", name(), doc);
elemTitle.setAttribute("unique", m_strUniqueName);
elemRoot.appendChild (elemTitle);
// save comment
if (!m_strComment.isEmpty())
elemRoot.appendChild (createXmlTextElement("comment", m_strComment, doc));
// save contact
if (!m_strContact.isEmpty())
elemRoot.appendChild (createXmlTextElement("contact", m_strContact, doc));
// save publisher
if (!m_strPublisher.isEmpty())
elemRoot.appendChild (createXmlTextElement("publisher", m_strPublisher, doc));
// save version
QDomElement elemVersion = createXmlTextElement("version", m_strVersion, doc);
elemVersion.setAttribute("published", m_datePublished.toString(Qt::ISODate));
elemRoot.appendChild(elemVersion);
// save dates
if (m_dateValidFrom.isValid() || m_dateValidUntil.isValid())
{
QDomElement elemValid = doc.createElement("valid");
elemValid.setAttribute("from", m_dateValidFrom.toString(Qt::ISODate));
elemValid.setAttribute("until", m_dateValidUntil.toString(Qt::ISODate));
elemRoot.appendChild(elemValid);
}
// TODO: save tests
// save chapters
for (int i=0; i<m_listChapter.size(); i++)
m_listChapter[i]->save(elemRoot, doc);
// save helpers
for (int i=0; i<m_listHint.size(); i++)
m_listHint[i].save(elemRoot, doc);
out << doc.toString();
m_strFileName = strFileName;
return true;
}
QString CCatalog::statisticFileName() const
{
QDir dir;
QString str = dir.homePath()+QString("/.afutrainer/") + m_strUniqueName + QString(".stat.xml");
Q_ASSERT(!m_strUniqueName.isEmpty());
return (str);
}
bool CCatalog::loadStatistic(QWidget *pParent)
{
QDomDocument doc;
QDomElement elemRoot, e;
QDomNode n;
QFile file (statisticFileName());
QString strVerzeichnis, str, strXML;
int iErrLine, iErrCol;
if (!file.exists()) return true;
if (!file.open (QIODevice::ReadOnly))
{
QMessageBox::critical(pParent, QString(pParent->tr("Datei-Fehler")), pParent->tr("Konnte folgende Datei nicht zum Lesen öffnen:\n")+statisticFileName());
return false;
}
QTextStream in (&file);
strXML = in.readAll();
if (!doc.setContent(strXML, true, &str, &iErrLine, &iErrCol))
{
QMessageBox::critical(pParent, pParent->tr("XML-Fehler"), pParent->tr("Statistik zum Fragenkatalog: ") + statisticFileName() + "\n" + str + "\n" + QString (pParent->tr("Zeile: %1 Spalte %2")).arg(iErrLine).arg(iErrCol));
return false;
}
file.close ();
elemRoot = doc.documentElement ();
if (doc.doctype().name() != "AFUTrainerStatistics") return false;
if (elemRoot.tagName() != "statistic") return false;
n = elemRoot.firstChild();
while (!n.isNull())
{
if (n.isElement ())
{
e = n.toElement ();
if (e.tagName() == QString ("learning"))
{
loadLearnStatistic(e);
}
else if (e.tagName() == QString("exams"))
loadExamStatistic(e);
}
n = n.nextSibling();
}
return true;
}
bool CCatalog::saveStatistic(QWidget *pParent)
{
QDomDocument doc ("AFUTrainerStatistics");
QString strFileName = statisticFileName();
QFile file (strFileName);
if (m_strUniqueName.isEmpty()) return false;
QDomElement elemRoot = doc.createElement ("statistic");
elemRoot.setAttribute ("name", name());
elemRoot.setAttribute("version", 2);
elemRoot.setAttribute("date", QDate::currentDate().toString(Qt::ISODate));
doc.appendChild (elemRoot);
QDomElement elemLearn = doc.createElement ("learning");
elemRoot.appendChild (elemLearn);
saveLearnStatistic(elemLearn, doc);
QDomElement elemExams = doc.createElement ("exams");
elemRoot.appendChild (elemExams);
saveExamStatistic(elemExams, doc);
if (!file.open (QIODevice::WriteOnly))
{
QMessageBox::critical (pParent, pParent->tr("Fehler"), pParent->tr("Konnte folgende Datei nicht zum Schreiben öffnen.\n")+strFileName);
return false;
}
QTextStream out(&file);
out << doc.toString ();
return true;
}
bool CCatalog::loadExamStatistic (QDomElement& elemRoot)
{
QDomNode n;
QDomElement e;
n = elemRoot.firstChild();
while (!n.isNull())
{
if (n.isElement ())
{
e = n.toElement ();
if (e.tagName() == QString ("exam"))
{
CExamStat es;
if (es.load(e)) m_listExamStat.append(es);
}
}
n = n.nextSibling();
}
return true;
}
void CCatalog::saveExamStatistic (QDomElement& parent, QDomDocument& doc)
{
for (int i=0; i<m_listExamStat.size(); i++)
{
m_listExamStat.at(i).save (parent, doc);
}
}
QList<CChapter*> CCatalog::chapters()
{
QList<CChapter*> list;
list.append(this);
list << subChapters();
return list;
}
CExam CCatalog::examById(const QString& strId) const
{
for (int i=0; i<m_listExam.size(); i++)
{
if (m_listExam.at(i).id() == strId)
return m_listExam.at(i);
}
return CExam();
}
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