#include "qxttreewidgetitem.h"
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#include "qxttreewidget.h"

/*!
    \class QxtTreeWidgetItem
    \inmodule QxtGui
    \brief The QxtTreeWidgetItem class is an extended QTreeWidgetItem.

    QxtTreeWidgetItem provides means for offering check state change signals and
    convenience methods for testing and setting flags.

    \sa QxtTreeWidget
 */

/*!
    Constructs a new QxtTreeWidgetItem with \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(int type)
        : QTreeWidgetItem(type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a strings and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(const QStringList& strings, int type)
        : QTreeWidgetItem(strings, type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a parent and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidget* parent, int type)
        : QTreeWidgetItem(parent, type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a parent, \a strings and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidget* parent, const QStringList& strings, int type)
        : QTreeWidgetItem(parent, strings, type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a parent, \a preceding and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidget* parent, QTreeWidgetItem* preceding, int type)
        : QTreeWidgetItem(parent, preceding, type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a parent and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidgetItem* parent, int type)
        : QTreeWidgetItem(parent, type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a parent, \a strings and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidgetItem* parent, const QStringList& strings, int type)
        : QTreeWidgetItem(parent, strings, type)
{
}

/*!
    Constructs a new QxtTreeWidgetItem with \a parent, \a preceding and \a type.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(QTreeWidgetItem* parent, QTreeWidgetItem* preceding, int type)
        : QTreeWidgetItem(parent, preceding, type)
{
}

/*!
    Constructs a copy of \a other.
 */
QxtTreeWidgetItem::QxtTreeWidgetItem(const QxtTreeWidgetItem& other)
        : QTreeWidgetItem(other)
{
}

/*!
    Destructs the tree widget item.
 */
QxtTreeWidgetItem::~QxtTreeWidgetItem()
{
}

/*!
    Returns \c true if the \a flag is set, otherwise \c false.

    \sa setFlag(), QTreeWidgetItem::flags(), Qt::ItemFlag
 */
bool QxtTreeWidgetItem::testFlag(Qt::ItemFlag flag) const
{
    return (flags() & flag);
}

/*!
    If \a enabled is \c true, the item \a flag is enabled; otherwise, it is disabled.

    \sa testFlag(), QTreeWidgetItem::setFlags(), Qt::ItemFlag
 */
void QxtTreeWidgetItem::setFlag(Qt::ItemFlag flag, bool enabled)
{
    if (enabled)
        setFlags(flags() | flag);
    else
        setFlags(flags() & ~flag);
}

/*!
    \reimp
 */
void QxtTreeWidgetItem::setData(int column, int role, const QVariant& value)
{
    if (role == Qt::CheckStateRole)
    {
        const Qt::CheckState newState = static_cast<Qt::CheckState>(value.toInt());
        const Qt::CheckState oldState = static_cast<Qt::CheckState>(data(column, role).toInt());

        QTreeWidgetItem::setData(column, role, value);

        if (newState != oldState)
        {
            QxtTreeWidget* tree = qobject_cast<QxtTreeWidget*>(treeWidget());
            if (tree)
            {
                emit tree->itemCheckStateChanged(this);
            }
        }
    }
    else
    {
        QTreeWidgetItem::setData(column, role, value);
    }
}
