1 files changed, 125 insertions, 0 deletions
diff --git a/src/dictionary/Card.cpp b/src/dictionary/Card.cpp
new file mode 100644
index 0000000..6464941
--- /dev/null
+++ b/src/dictionary/Card.cpp
@@ -0,0 +1,125 @@
+#include <QtDebug>
+
+#include "Card.h"
+#include "ICardPack.h"
+#include "DicRecord.h"
+#include "Field.h"
+
+bool Card::operator==( const Card& another ) const
+    {
+    return question == another.getQuestion();
+    }
+
+/** Card name is its question.
+    Image tags are replaced with image names.
+  */
+QString Card::getName() const
+    {
+    QString nameStr = question;
+    QRegExp imageNameRx("<img\\s*src=\"(.+[/\\\\])?(.+)\".*>");
+    nameStr.replace( imageNameRx, "\\2");
+    return nameStr;
+    }
+
+QStringList Card::getAnswers()
+    {
+    generateAnswers();
+    return answers;
+    }
+
+QList<const DicRecord*> Card::getSourceRecords()
+    {
+    if( sourceRecords.isEmpty() )
+        generateAnswers();
+    return sourceRecords;
+    }
+
+QMultiHash<QString, QString> Card::getAnswerElements()
+{
+    QMultiHash<QString, QString> answerElements; // Key: field name
+    QString qstFieldName = cardPack->getQuestionFieldName();
+    foreach(DicRecord* record, cardPack->getRecords())
+        if(record->getFieldElements(qstFieldName).contains(question) &&
+            record->isValid(qstFieldName))
+        {
+            sourceRecords << record;
+            connect(record, SIGNAL(valueChanged(QString)), SLOT(dropAnswers()));
+            foreach(QString ansFieldName, cardPack->getAnswerFieldNames())
+            {
+                if(record->getFieldValue(ansFieldName).isEmpty())
+                    continue;
+                foreach(QString ansElement, record->getFieldElements(ansFieldName))
+                    if(!answerElements.contains(ansFieldName, ansElement))
+                        answerElements.insert(ansFieldName, ansElement);
+            }
+        }
+    return answerElements;
+}
+
+void Card::generateAnswersFromElements(
+    const QMultiHash<QString, QString>& answerElements)
+{
+    foreach(const Field* ansField, cardPack->getAnswerFields())
+    {
+        if(!ansField)
+        {
+            answers << "";
+            continue;
+        }
+        QStringList elements = getAnswerElementsForField(answerElements, ansField->name());
+        if(elements.isEmpty())
+        {
+            answers << "";
+            continue;
+        }
+        answers << elements.join(ICardPack::HomonymDelimiter);
+    }
+}
+
+QStringList Card::getAnswerElementsForField(const QMultiHash<QString, QString>& answerElements,
+    const QString& fieldName) const
+{
+    QStringList elements = answerElements.values(fieldName); // reversed order
+    QStringList elementsInOrder;
+    elementsInOrder.reserve(elements.size());
+    std::reverse_copy( elements.begin(), elements.end(),
+        std::back_inserter(elementsInOrder) );
+    return elementsInOrder;
+}
+
+// Fills also list of source entries
+void Card::generateAnswers()
+    {
+    if(!cardPack)
+        return;
+    clearAnswers();
+    generateAnswersFromElements(getAnswerElements());
+    }
+
+void Card::clearAnswers()
+{
+    answers.clear();
+    foreach(const DicRecord* record, sourceRecords)
+        disconnect( record, 0, this, SLOT(dropAnswers()) );
+    sourceRecords.clear();
+}
+
+void Card::dropAnswers()
+    {
+    clearAnswers();
+    emit answersChanged();
+    }
+
+StudyRecord Card::getStudyRecord() const
+    {
+    return cardPack->getStudyRecord(getQuestion());
+    }
+
+///< Reviewed at least twice
+bool Card::isScheduledAndReviewed() const
+    {
+    if(!cardPack)
+        return false;
+    int reviews = cardPack->getStudyRecords(getQuestion()).size();
+    return  reviews >= 2;
+    }