Qt 4.0: customsqlmodel.cpp Example File (sql/querymodel/customsqlmodel.cpp)

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# customsqlmodel.cpp Example File
sql/querymodel/customsqlmodel.cpp

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        ** This file is part of the documentation of the Qt Toolkit.
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    ** and appearing in the file LICENSE.GPL included in the packaging of
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        #include "customsqlmodel.h"

        #include <qcolor.h>

        CustomSqlModel::CustomSqlModel(QObject *parent)
            : QSqlQueryModel(parent)
        {
        }

        QVariant CustomSqlModel::data(const QModelIndex &index, int role) const
        {
            QVariant value = QSqlQueryModel::data(index, role);
            if (value.isValid() && role == Qt::DisplayRole) {
                if (index.column() == 0)
                    return value.toString().prepend("#");
                else if (index.column() == 2)
                    return value.toString().toUpper();
            }
            if (role == Qt::TextColorRole && index.column() == 1)
                return qVariantFromValue(QColor(Qt::blue));
            return value;
        }