709 lines
19 KiB
C++
709 lines
19 KiB
C++
/***************************************************************************
|
||
* 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 "question.h"
|
||
#include "catalog.h"
|
||
#include "tools.h"
|
||
|
||
#include <qtextdocument.h>
|
||
#include <qcoreapplication.h>
|
||
#include <qfileinfo.h>
|
||
#include <qvariant.h>
|
||
|
||
|
||
void CDayStatistic::clear()
|
||
{
|
||
m_date = QDate();
|
||
m_uClickedWrong = 0;
|
||
m_uClickedCorrect = 0;
|
||
m_uTimeExpeditureCorrect = 0;
|
||
m_uTimeExpeditureWrong = 0;
|
||
m_dLevel = 0.0;
|
||
}
|
||
|
||
CDayStatistic& CDayStatistic::operator += (const CDayStatistic& ds)
|
||
{
|
||
m_date = ds.m_date;
|
||
m_uClickedWrong += ds.m_uClickedWrong;
|
||
m_uClickedCorrect += ds.m_uClickedCorrect;
|
||
m_uTimeExpeditureCorrect += ds.m_uTimeExpeditureCorrect;
|
||
m_uTimeExpeditureWrong += ds.m_uTimeExpeditureWrong;
|
||
m_dLevel += ds.m_dLevel;
|
||
return *this;
|
||
}
|
||
|
||
void CDayStatistic::debug() const
|
||
{
|
||
qDebug("-- Day statistic %s --", qPrintable(m_date.toString(Qt::LocalDate)));
|
||
if (m_uClickedCorrect + m_uClickedWrong == 0)
|
||
{
|
||
qDebug (" No clicks");
|
||
return;
|
||
}
|
||
qDebug(" %i correct + %i wrong = %i", m_uClickedCorrect, m_uClickedWrong, m_uClickedCorrect + m_uClickedWrong);
|
||
qDebug(" %i ms + %i ms = %i ms", m_uTimeExpeditureCorrect, m_uTimeExpeditureWrong, m_uTimeExpeditureCorrect + m_uTimeExpeditureWrong);
|
||
qDebug(" Level = %lf", m_dLevel);
|
||
}
|
||
|
||
QString CQuestion::tr (const char *sourceText, const char *comment)
|
||
{
|
||
return QCoreApplication::translate("CQuestion", sourceText, comment);
|
||
}
|
||
|
||
unsigned CQuestion::waitDaysForRepeat (const unsigned uLevel)
|
||
{
|
||
switch (uLevel)
|
||
{
|
||
case LEVEL_VERYOFTEN:
|
||
return 0;
|
||
case LEVEL_OFTEN:
|
||
return 1;
|
||
case LEVEL_NORMAL:
|
||
return 2;
|
||
case LEVEL_RARE:
|
||
return 4;
|
||
case LEVEL_VERYRARE:
|
||
return 8;
|
||
default:
|
||
case LEVEL_EXTREMERARE:
|
||
return 16;
|
||
}
|
||
}
|
||
|
||
|
||
void CQuestion::clear()
|
||
{
|
||
m_pParentChapter = 0;
|
||
m_strId.clear();
|
||
m_strText.clear();
|
||
m_listAnswer.clear();
|
||
m_strlGroups.clear();
|
||
m_uErrorPoints = 1;
|
||
|
||
m_uCorrectAnswers=0;
|
||
m_uCorrectSuccessive=0;
|
||
m_uWrongAnswers=0;
|
||
m_uWrongSuccessive=0;
|
||
m_uLevel=0;
|
||
}
|
||
|
||
QString CQuestion::plainText() const
|
||
{
|
||
QTextDocument doc;
|
||
doc.setHtml(m_strText);
|
||
return doc.toPlainText();
|
||
}
|
||
|
||
QString CQuestion::firstTextLine() const
|
||
{
|
||
QString str = plainText();
|
||
int i = str.indexOf('\n');
|
||
return str.left (i);
|
||
}
|
||
|
||
QString CQuestion::showText(CCatalog *pCatalog) const
|
||
{
|
||
QString str, strHints;
|
||
str +="<h2>Frage " + id() + "</h2>";
|
||
str += "<p>" + text() + "</p><br>";
|
||
|
||
str += "<p><table cellspacing='3'>";
|
||
for (int i=0; i<m_listAnswer.size(); i++)
|
||
{
|
||
str += "<tr>";
|
||
// Icon
|
||
str += "<td valign='top' width='30'><img src=':/icons/16x16/button_";
|
||
if (m_listAnswer[i].isCorrect())
|
||
str +="ok";
|
||
else
|
||
str +="cancel";
|
||
str +=".png'></td>";
|
||
// Answer number
|
||
str += QString("<td valign='top' > <b>%1</b> </td>").arg(QChar('A' + i));
|
||
// Text
|
||
str += "<td valign='top'>" + m_listAnswer[i].text() + "</td>";
|
||
str += "</tr>";
|
||
}
|
||
str += "</table></p>";
|
||
strHints = pCatalog->hintText(id());
|
||
if (!strHints.isEmpty())
|
||
{
|
||
str += "<h2>Hilfestellung</h2>" + strHints;
|
||
}
|
||
str += "<h2>Abfrageverlauf</h2>";
|
||
str += lastClickedTextExtended();
|
||
str += " " + repeatDateTextExtended();
|
||
if (!m_listAnswerClicked.isEmpty())
|
||
{
|
||
str += "<br><br><table><tr><th>Datum/Uhrzeit </th><th>Antwort </th><th>Richtig? </th><th>Ben<65>tigte Zeit</th></tr>";
|
||
for (int i=0; i<m_listAnswerClicked.size(); i++)
|
||
{
|
||
CAnswerClicked ac = m_listAnswerClicked.at(i);
|
||
str += "<tr><td>" + ac.dateTime().toString(Qt::LocalDate) + " </td><td>" + ac.answerText() + "</td><td>";
|
||
if (ac.isCorrect(m_listAnswer))
|
||
str += tr("richtig");
|
||
else
|
||
str += tr("falsch");
|
||
str += "</td><td>" + QString ("%1").arg(ac.neededTimeText()) + "</td></tr>";
|
||
}
|
||
str += "</table>";
|
||
}
|
||
//str +="<h2>Statistik</h2>";
|
||
return str;
|
||
}
|
||
|
||
QString CQuestion::learnText(CCatalog *pCatalog, const bool bShowId, const bool bShowHints)
|
||
{
|
||
QString str;
|
||
|
||
if (bShowId) str += "<b>" + id() + "</b> ";
|
||
str += text() + "<br>";
|
||
|
||
str += "<p><table cellspacing='3'>";
|
||
for (int i=0; i<m_listAnswer.size(); i++)
|
||
{
|
||
str += "<tr>";
|
||
// Answer number
|
||
str += QString("<td valign='top' > <b>%1</b> </td>").arg(QChar('A' + i));
|
||
// Text
|
||
str += "<td valign='top'>";
|
||
//CHEAT: if (mixedAnswerAt(i).isCorrect()) str += "<i>OK</i> ";
|
||
str += learnAnswerAt(i).text();
|
||
str += "</td></tr>";
|
||
}
|
||
str += "</table></p>";
|
||
|
||
if (bShowHints)
|
||
{
|
||
QString strHints = pCatalog->hintText(id());
|
||
if (!strHints.isEmpty()) str += "<hr>" + strHints;
|
||
}
|
||
return str;
|
||
}
|
||
|
||
bool CQuestion::load (QDomElement elem)
|
||
{
|
||
QString str;
|
||
if (elem.tagName () != "question") return false;
|
||
if (!elem.hasAttribute ("id")) return false;
|
||
|
||
clear ();
|
||
m_strId = elem.attribute ("id");
|
||
m_uErrorPoints = elem.attribute("errorpoints", "1").toUInt();
|
||
str = elem.attribute("groups");
|
||
str = str.replace(' ', ';').replace(',', ';');
|
||
m_strlGroups = str.split(";", QString::SkipEmptyParts);
|
||
|
||
if (m_uErrorPoints == 0) return false;
|
||
|
||
QDomNode n = elem.firstChild();
|
||
while (!n.isNull())
|
||
{
|
||
if (n.isElement ())
|
||
{
|
||
QDomElement e = n.toElement ();
|
||
str = e.text();
|
||
if (e.tagName () == "textquestion")
|
||
m_strText = str;
|
||
else if (e.tagName () == "textanswer")
|
||
m_listAnswer.append(CAnswer(str, QVariant(e.attribute("correct", "false")).toBool()));
|
||
}
|
||
n = n.nextSibling();
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
QString CQuestion::removeTempPath(const QString& strText)
|
||
{
|
||
QString str=strText, strFileName, strBaseName;
|
||
int idxStart=-1, idxEnd=0;
|
||
while ((idxStart = str.indexOf(QRegExp("src\\s*=\\s*\""), idxEnd)) != -1)
|
||
{
|
||
idxStart = str.indexOf('"', idxStart)+1;
|
||
idxEnd = str.indexOf('"', idxStart);
|
||
strFileName = str.mid(idxStart, idxEnd - idxStart);
|
||
if (strFileName.isEmpty()) continue;
|
||
QFileInfo fi(strFileName);
|
||
strBaseName = fi.fileName();
|
||
strBaseName = strBaseName.left(strBaseName.lastIndexOf('.'));
|
||
str.replace(strFileName, strBaseName);
|
||
}
|
||
return str;
|
||
}
|
||
|
||
void CQuestion::save (QDomElement& parent, QDomDocument& doc)
|
||
{
|
||
QDomElement elemRoot = doc.createElement("question");
|
||
elemRoot.setAttribute("id", id());
|
||
if (m_uErrorPoints > 1)
|
||
elemRoot.setAttribute("errorpoints", QString("%1").arg(m_uErrorPoints));
|
||
if (!m_strlGroups.isEmpty())
|
||
elemRoot.setAttribute("groups", m_strlGroups.join("; "));
|
||
|
||
parent.appendChild(elemRoot);
|
||
|
||
QDomElement elemQuestion = doc.createElement("textquestion");
|
||
QDomText textQuestion = doc.createTextNode(removeTempPath(text()));
|
||
elemQuestion.appendChild(textQuestion);
|
||
elemRoot.appendChild(elemQuestion);
|
||
|
||
// save answers
|
||
for (int i=0; i<m_listAnswer.size(); i++)
|
||
{
|
||
QDomElement elemAnswer = doc.createElement(QString("textanswer"));
|
||
if (m_listAnswer[i].isCorrect())
|
||
elemAnswer.setAttribute("correct", m_listAnswer[i].isCorrect() ? "true" : "false");
|
||
QDomText textAnswer = doc.createTextNode(removeTempPath(m_listAnswer[i].text()));
|
||
elemAnswer.appendChild(textAnswer);
|
||
elemRoot.appendChild(elemAnswer);
|
||
}
|
||
}
|
||
|
||
bool CQuestion::loadLearnStatistic (QDomElement elem)
|
||
{
|
||
if (elem.tagName () != "question") return false;
|
||
if (elem.attribute ("id") != id()) return false;
|
||
|
||
m_uCorrectAnswers = elem.attribute("c").toUInt();
|
||
m_uWrongAnswers = elem.attribute ("w").toUInt();
|
||
m_uCorrectSuccessive = elem.attribute ("cs").toUInt();
|
||
m_uWrongSuccessive = elem.attribute ("ws").toUInt();
|
||
|
||
m_listAnswerClicked.clear();
|
||
QDomNode n = elem.firstChild();
|
||
while (!n.isNull())
|
||
{
|
||
if (n.isElement ())
|
||
{
|
||
QDomElement e = n.toElement ();
|
||
if (e.tagName () == "answer_clicked")
|
||
{
|
||
CAnswerClicked ac;
|
||
if (ac.load(e))
|
||
m_listAnswerClicked.append(ac);
|
||
}
|
||
}
|
||
n = n.nextSibling();
|
||
}
|
||
qSort(m_listAnswerClicked);
|
||
m_uLevel = levelAtEndOfDay(QDate::currentDate());
|
||
return true;
|
||
}
|
||
|
||
bool CQuestion::saveLearnStatistic (QDomElement& parent, QDomDocument& doc)
|
||
{
|
||
QDomElement elemQuestion;
|
||
|
||
if (clickedWrong() == 0 && clickedCorrect() == 0) return true;
|
||
elemQuestion = doc.createElement ("question");
|
||
elemQuestion.setAttribute ("id", id());
|
||
elemQuestion.setAttribute ("c", QString ("%1").arg(clickedCorrect()));
|
||
elemQuestion.setAttribute ("w", QString ("%1").arg(clickedWrong()));
|
||
elemQuestion.setAttribute ("cs", QString ("%1").arg(clickedCorrectSuccessive()));
|
||
elemQuestion.setAttribute ("ws", QString ("%1").arg(clickedWrongSuccessive()));
|
||
parent.appendChild (elemQuestion);
|
||
|
||
for (int i=0; i<m_listAnswerClicked.size(); i++)
|
||
{
|
||
m_listAnswerClicked.at(i).save(elemQuestion, doc);
|
||
}
|
||
return true;
|
||
}
|
||
|
||
|
||
QString CQuestion::checkForErrors() const
|
||
{
|
||
QString str;
|
||
int iAnswerCount = 0;
|
||
|
||
iAnswerCount = countAnswer();
|
||
if (iAnswerCount != 4)
|
||
str += QObject::tr("Die Frage %1 hat nicht exakt vier Antworten, sondern %2 St<53>ck.").arg(id()).arg(iAnswerCount) + "<br>";
|
||
iAnswerCount = countCorrectAnswer();
|
||
if (iAnswerCount != 1)
|
||
str += QObject::tr("Die Frage %1 hat nicht exakt eine richtige Antwort, sondern %2 St<53>ck.").arg(id()).arg(iAnswerCount) + "<br>";
|
||
for (int j=0; j<countAnswer(); j++)
|
||
{
|
||
if (answerAt(j).text().isEmpty())
|
||
str += QObject::tr("Die Antwort %1 der Frage %2 enth<74>lt keinen Text.").arg(QChar('A' + j)).arg(id()) + "<br>";
|
||
}
|
||
if (text().isEmpty())
|
||
str += QObject::tr("Die Frage %1 enth<74>lt keinen Text.").arg(id()) + "<br>";
|
||
|
||
return str;
|
||
}
|
||
|
||
void CQuestion::mixAnswers(const bool bMix)
|
||
{
|
||
unsigned u1=0, u2=0;
|
||
m_listMixedAnswer.clear();
|
||
if (!bMix) return;
|
||
for (int i=0; i<m_listAnswer.size(); i++)
|
||
m_listMixedAnswer.append(i);
|
||
|
||
for (int i=0; i<m_listMixedAnswer.size()*2; i++)
|
||
{
|
||
u1 = afu_random(0, m_listMixedAnswer.size()-1);
|
||
u2 = afu_random(0, m_listMixedAnswer.size()-1);
|
||
if (u1 == u2) continue;
|
||
m_listMixedAnswer.swap(u1, u2);
|
||
}
|
||
}
|
||
|
||
const CAnswer& CQuestion::learnAnswerAt(int i) const
|
||
{
|
||
if (m_listMixedAnswer.size() != m_listAnswer.size())
|
||
return m_listAnswer.at(i);
|
||
else
|
||
return m_listAnswer.at(m_listMixedAnswer.at(i));
|
||
}
|
||
|
||
unsigned CQuestion::correctAnswerMask() const
|
||
{
|
||
unsigned u=0;
|
||
for (int i=0; i<m_listAnswer.size(); i++)
|
||
{
|
||
if (learnAnswerAt(i).isCorrect())
|
||
u |= (1<<i);
|
||
}
|
||
return u;
|
||
}
|
||
|
||
QString CQuestion::answerMaskToString(const unsigned u)
|
||
{
|
||
QString str;
|
||
for (int i=0; i<(int)sizeof(unsigned); i++)
|
||
{
|
||
if (u & (1<<i))
|
||
{
|
||
if (!str.isEmpty()) str += ", ";
|
||
str += QChar('A' + i);
|
||
}
|
||
}
|
||
return str;
|
||
}
|
||
|
||
QString CQuestion::correctionText(const unsigned uAnswerMask)
|
||
{
|
||
if (uAnswerMask == 0)
|
||
{
|
||
return QObject::tr("Die richtige Antwort lautet %1.")
|
||
.arg(answerMaskToString(correctAnswerMask()));
|
||
}
|
||
else if (uAnswerMask == correctAnswerMask())
|
||
{
|
||
return QObject::tr("Ihre Antwort %1 war richtig!").arg(answerMaskToString(uAnswerMask));
|
||
}
|
||
else
|
||
{
|
||
return QObject::tr("Ihre Antwort %1 war leider falsch. Die richtige Antwort w<>re %2 gewesen.")
|
||
.arg(answerMaskToString(uAnswerMask)).arg(answerMaskToString(correctAnswerMask()));
|
||
}
|
||
}
|
||
|
||
int CQuestion::countCorrectAnswer() const
|
||
{
|
||
int iRet=0;
|
||
for (int i=0; i<m_listAnswer.size(); i++)
|
||
{
|
||
if (m_listAnswer.at(i).isCorrect())
|
||
iRet++;
|
||
}
|
||
return iRet;
|
||
}
|
||
|
||
unsigned CQuestion::orderedAnswerMask(const unsigned uMixedAnswerMask)
|
||
{
|
||
unsigned u=0;
|
||
if (m_listMixedAnswer.isEmpty()) return uMixedAnswerMask;
|
||
|
||
for (int i=0; i<m_listMixedAnswer.size(); i++)
|
||
{
|
||
u |= ((uMixedAnswerMask>>i) & 0x0001) << m_listMixedAnswer.at(i);
|
||
}
|
||
return u;
|
||
}
|
||
|
||
void CQuestion::registerAnswerClicked (const unsigned uAnswerMask, const unsigned uNeededTime)
|
||
{
|
||
m_listAnswerClicked.append(CAnswerClicked(orderedAnswerMask(uAnswerMask), uNeededTime));
|
||
if (correctAnswerMask() == uAnswerMask)
|
||
{
|
||
m_uCorrectAnswers++;
|
||
m_uCorrectSuccessive++;
|
||
m_uWrongSuccessive = 0;
|
||
//if (m_uLevel > 0 && m_uLevel < LEVEL_MAX || m_uLevel == 0 && m_uCorrectSuccessive == 2)
|
||
if (m_uLevel < LEVEL_MAX)
|
||
m_uLevel++;
|
||
}
|
||
else
|
||
{
|
||
m_uWrongAnswers++;
|
||
m_uCorrectSuccessive = 0;
|
||
m_uWrongSuccessive++;
|
||
if (m_uLevel > 0)
|
||
m_uLevel--;
|
||
}
|
||
/* if (m_pParentChapter)
|
||
m_pParentChapter->updateStatistic(true);
|
||
*/
|
||
}
|
||
|
||
QString CQuestion::levelIconName(const unsigned uLevel)
|
||
{
|
||
// if (uLevel <= LEVEL_VERYRARE)
|
||
return QString(":/icons/16x16/level%1.png").arg(uLevel);
|
||
// else
|
||
// return ":/icons/16x16/button_ok.png";
|
||
}
|
||
|
||
QIcon CQuestion::levelIcon(const unsigned uLevel)
|
||
{
|
||
return QIcon (levelIconName(uLevel));
|
||
}
|
||
|
||
QString CQuestion::levelText(const unsigned uLevel)
|
||
{
|
||
switch (uLevel)
|
||
{
|
||
case LEVEL_VERYOFTEN:
|
||
return QObject::tr("Ahnungslos");
|
||
case LEVEL_OFTEN:
|
||
return QObject::tr("Anf<EFBFBD>nger");
|
||
case LEVEL_NORMAL:
|
||
return QObject::tr("Fortgeschritten");
|
||
case LEVEL_RARE:
|
||
return QObject::tr("Experte");
|
||
case LEVEL_VERYRARE:
|
||
return QObject::tr("Freak");
|
||
case LEVEL_EXTREMERARE:
|
||
return QObject::tr("Professor");
|
||
default:
|
||
return QObject::tr("unbekannt");
|
||
}
|
||
}
|
||
|
||
QDateTime CQuestion::firstClicked() const
|
||
{
|
||
// Vorraussetzung: m_listAnswerClicked ist nach Datum aufsteigend sortiert
|
||
if (m_listAnswerClicked.size() > 0)
|
||
return m_listAnswerClicked.at(0).dateTime();
|
||
return QDateTime();
|
||
}
|
||
|
||
QDateTime CQuestion::lastClicked() const
|
||
{
|
||
// Vorraussetzung: m_listAnswerClicked ist nach Datum aufsteigend sortiert
|
||
if (m_listAnswerClicked.size() > 0)
|
||
return m_listAnswerClicked.at(m_listAnswerClicked.size()-1).dateTime();
|
||
return QDateTime();
|
||
}
|
||
|
||
QString CQuestion::lastClickedText() const
|
||
{
|
||
QDateTime dtLastClicked = lastClicked();
|
||
unsigned uSecs = dtLastClicked.secsTo (QDateTime::currentDateTime());
|
||
unsigned uDays = dtLastClicked.daysTo (QDateTime::currentDateTime());
|
||
|
||
if (!dtLastClicked.isValid())
|
||
return QString();
|
||
|
||
if (uSecs < 60)
|
||
return tr("vor < 1 min");
|
||
else if (uSecs < 3600)
|
||
return (tr("vor %1 min").arg(uSecs / 60));
|
||
else if (uDays == 1)
|
||
return (tr("gestern"));
|
||
else if (uDays > 1)
|
||
return (tr("vor %1 Tagen").arg(uDays));
|
||
else
|
||
return (tr("vor %1 h").arg(uSecs / 3600));
|
||
}
|
||
|
||
QString CQuestion::lastClickedTextExtended() const
|
||
{
|
||
QDateTime dtLastClicked = lastClicked();
|
||
QString strRet;
|
||
unsigned uLevelOld=0, uLevelNew=0;
|
||
if (!dtLastClicked.isValid())
|
||
return tr("Die Frage wurde noch nie beantwortet.");
|
||
|
||
strRet = tr("Die Frage wurde %1 (%2) zuletzt beantwortet. ", "%1=gestern, vor x Tagen, ... / %2 = exaktes Datum m. Uhrzeit").arg(lastClickedText(), dtLastClicked.toString(Qt::LocalDate));
|
||
|
||
uLevelOld = levelAtEndOfDay(dtLastClicked.date().addDays(-1));
|
||
uLevelNew = levelAtEndOfDay(dtLastClicked.date());
|
||
|
||
if (uLevelOld == uLevelNew)
|
||
strRet += tr("Die Einstufung des Lernfortschritts <20>nderte sich an diesem Tag nicht.");
|
||
else
|
||
strRet += tr("Der Lernfortschritt <20>nderte sich an diesem Tag von '%1' auf '%2'.").arg(levelText(uLevelOld), levelText(uLevelNew));
|
||
|
||
return strRet;
|
||
}
|
||
|
||
/*!
|
||
\return Datum, an dem die Frage wiederholt werden soll.
|
||
Gibt es kein solches Datum, so wird ein ung<6E>ltiges Datum (QDate::isValid()) zur<75>ckgegeben.
|
||
Hinweis: Das Datum kann auch in der Vergangenheit liegen!
|
||
*/
|
||
|
||
QDate CQuestion::repeatDate() const
|
||
{
|
||
QDate dLastClicked = lastClicked().date();
|
||
unsigned uLevelOld=0, uLevelNew=0;
|
||
|
||
if (!dLastClicked.isValid()) return QDate();
|
||
|
||
uLevelOld = levelAtEndOfDay(dLastClicked.addDays(-1));
|
||
uLevelNew = levelAtEndOfDay(dLastClicked);
|
||
|
||
if (uLevelNew <= uLevelOld && uLevelNew != LEVEL_MAX)
|
||
return dLastClicked;
|
||
|
||
return dLastClicked.addDays(waitDaysForRepeat(m_uLevel));
|
||
}
|
||
|
||
bool CQuestion::isRepeatToday() const
|
||
{
|
||
QDate d = repeatDate();
|
||
|
||
if (d.isValid() && d <= QDate::currentDate()) return true;
|
||
return false;
|
||
}
|
||
|
||
QString CQuestion::repeatDateText() const
|
||
{
|
||
QDate d = repeatDate();
|
||
if (!d.isValid()) return QString();
|
||
if (d <= QDate::currentDate())
|
||
return tr("heute");
|
||
else if (QDate::currentDate().addDays(1) == d)
|
||
return tr("morgen");
|
||
else
|
||
return tr("in %1 Tagen").arg(QDate::currentDate().daysTo(d));
|
||
}
|
||
|
||
QString CQuestion::repeatDateTextExtended() const
|
||
{
|
||
QString strRet;
|
||
unsigned uLevelOld=0, uLevelNew=0, uLevelTarget=0;
|
||
QDate dLastClicked = lastClicked().date();
|
||
|
||
if (!dLastClicked.isValid()) return QString();
|
||
uLevelOld = levelAtEndOfDay(dLastClicked.addDays(-1));
|
||
uLevelNew = levelAtEndOfDay(dLastClicked);
|
||
if (uLevelNew > uLevelOld)
|
||
uLevelTarget = uLevelNew + 1;
|
||
else
|
||
uLevelTarget = uLevelOld + 1;
|
||
if (uLevelTarget > LEVEL_MAX) uLevelTarget = LEVEL_MAX;
|
||
if (uLevelNew == LEVEL_MAX)
|
||
strRet = tr("Es wird empfohlen, die Frage %1 zu wiederholen.").arg(repeatDateText());
|
||
else
|
||
strRet = tr("Es wird empfohlen, die Frage %1 zu wiederholen, um den Lernfortschritt '%2' zu erreichen.")
|
||
.arg(repeatDateText()).arg(levelText(uLevelTarget));
|
||
return strRet;
|
||
}
|
||
|
||
unsigned CQuestion::levelAtEndOfDay(const QDate& date) const
|
||
{
|
||
unsigned uLevel = 0, uCorrectSuccessive=0;
|
||
CAnswerClicked ac;
|
||
// Vorraussetzung: m_listAnswerClicked ist nach Datum aufsteigend sortiert
|
||
for (int i=0; i<m_listAnswerClicked.size(); i++)
|
||
{
|
||
ac = m_listAnswerClicked.at(i);
|
||
if (ac.dateTime().date() > date) return uLevel;
|
||
if (ac.isCorrect(m_listAnswer))
|
||
{
|
||
uCorrectSuccessive++;
|
||
if (uLevel < LEVEL_MAX)
|
||
{
|
||
//if (uLevel == LEVEL_VERYOFTEN && uCorrectSuccessive == 2 || uLevel > LEVEL_VERYOFTEN)
|
||
uLevel++;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
uCorrectSuccessive = 0;
|
||
if (uLevel > LEVEL_VERYOFTEN) uLevel--;
|
||
}
|
||
}
|
||
return uLevel;
|
||
}
|
||
|
||
CDayStatistic CQuestion::dayStatistic(const QDate& date) const
|
||
{
|
||
CAnswerClicked ac;
|
||
CDayStatistic ds;
|
||
ds.m_date = date;
|
||
if (date.isNull())
|
||
ds.m_dLevel = levelAtEndOfDay(QDate::currentDate());
|
||
else
|
||
ds.m_dLevel = levelAtEndOfDay(date);
|
||
|
||
// Vorraussetzung: m_listAnswerClicked ist nach Datum aufsteigend sortiert
|
||
for (int i=0; i<m_listAnswerClicked.size(); i++)
|
||
{
|
||
ac = m_listAnswerClicked.at(i);
|
||
if (!date.isNull())
|
||
{
|
||
if (ac.dateTime().date() > date) break;
|
||
if (ac.dateTime().date() < date) continue;
|
||
//if (ac.dateTime().date() != date) continue;
|
||
}
|
||
if (ac.isCorrect(m_listAnswer))
|
||
{
|
||
ds.m_uClickedCorrect++;
|
||
ds.m_uTimeExpeditureCorrect += ac.neededTime();
|
||
}
|
||
else
|
||
{
|
||
ds.m_uClickedWrong++;
|
||
ds.m_uTimeExpeditureWrong += ac.neededTime();
|
||
}
|
||
}
|
||
|
||
return ds;
|
||
}
|
||
|
||
|
||
/*!
|
||
\return true: Wenn die Frage heute zum ersten Mal beantwortet wurde und noch in der Kategorie LEVEL_VERYOFTEN ist
|
||
*/
|
||
bool CQuestion::isLearningNew() const
|
||
{
|
||
if (m_uLevel != LEVEL_VERYOFTEN) return false;
|
||
if (m_listAnswerClicked.size() > 0
|
||
&& m_listAnswerClicked.at(0).dateTime().date() != QDate::currentDate()) return false;
|
||
return true;
|
||
}
|
||
|
||
/*!
|
||
\return true: Die Frage wurde gestern oder fr<66>her zum ersten Mal beantwortet
|
||
*/
|
||
bool CQuestion::isKnownQuestion() const
|
||
{
|
||
if (m_listAnswerClicked.size() > 0
|
||
&& m_listAnswerClicked.at(0).dateTime().date() < QDate::currentDate()) return true;
|
||
return false;
|
||
}
|