#include "CEventDeviceTreeItem.h"

const int TypeRole = Qt::UserRole + 1;

CEventDeviceTreeItem::CEventDeviceTreeItem(const QString &data, CEventDeviceTreeItem *parent)
    : m_tag(QString()),
      m_parentItem(parent)
{
    if(m_parentItem)
    {
        m_parentItem->m_childItems.append(this);
    }

    m_data = data;
    m_checkState = Qt::Checked;
    m_nType = 0;
}

CEventDeviceTreeItem::~CEventDeviceTreeItem()
{
    qDeleteAll(m_childItems);
    m_childItems.clear();
}

CEventDeviceTreeItem *CEventDeviceTreeItem::child(int row)
{
    return m_childItems.value(row);
}

CEventDeviceTreeItem *CEventDeviceTreeItem::parentItem()
{
    return m_parentItem;
}

int CEventDeviceTreeItem::row() const
{
    if (m_parentItem)
    {
       return m_parentItem->m_childItems.indexOf(const_cast<CEventDeviceTreeItem*>(this));
    }

    return 0;
}

int CEventDeviceTreeItem::childCount() const
{
    return m_childItems.count();
}

int CEventDeviceTreeItem::columnCount() const
{
    return 1;
}

QVariant CEventDeviceTreeItem::data(Qt::ItemDataRole role) const
{
    if(Qt::DisplayRole == role)
    {
        return m_data;
    }
    else if(Qt::UserRole == role)
    {
        return m_tag;
    }
    else if(Qt::CheckStateRole == role)
    {
        return m_checkState;
    }
    else if(Qt::ItemDataRole(TypeRole) == role)
    {
        return m_nType;
    }

    return QVariant();
}

bool CEventDeviceTreeItem::setData(const QVariant &value, Qt::ItemDataRole role)
{
    if(Qt::DisplayRole == role)
    {
        m_data = value.toString();
        return true;
    }
    else if(Qt::UserRole == role)
    {
        m_tag = value.toString();
        return true;
    }
    else if(Qt::CheckStateRole == role)
    {
        m_checkState = (Qt::CheckState)value.toInt();
        return true;
    }
    else if(TypeRole == role)
    {
        m_nType = value.toInt();
        return true;
    }

    return false;
}

bool CEventDeviceTreeItem::removeChildren(int position, int count, int columns)
{
    Q_UNUSED(columns)
    if (position < 0 || position + count > m_childItems.size())
        return false;

    for (int row = 0; row < count; ++row)
        delete m_childItems.takeAt(position);

    return true;
}