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#include <QList>

#include <QPointer>

#include <QVariant>

#include "ASTItem.h"

using namespace QPatternistSDK;

/**

 * This is what the AST rendering is indented with.

 */

static const QLatin1String astIndent("  ");

// STATIC DATA

ASTItem::ASTItem(ASTItem *p,

                 const QString &name,

                 const QString &details,

                 const QString &staticType,

                 const QString &reqType) : m_name(name),

                                              m_details(details),

                                              m_reqType(reqType),

                                              m_staticType(staticType),

                                              m_parent(p)

{

}

ASTItem::~ASTItem()

{

    qDeleteAll(m_children);

}

QString ASTItem::toString() const

{

    /* The first ASTItem* is a virtual root node, so skip "this". */

    Q_ASSERT(m_children.count() == 1);

    TreeItem *treeChild = m_children.first();

    Q_ASSERT(treeChild);

    ASTItem *astChild = static_cast<ASTItem *>(treeChild);

    return astChild->toString(QString());

}

QString ASTItem::toString(const QString &indent) const

{

    QString retval;

    retval += indent;

    retval += m_name;

    retval += QLatin1Char('(');

    retval += m_details;

    retval += QLatin1String(")\n");

    const TreeItem::List::const_iterator end(m_children.constEnd());

    for(TreeItem::List::const_iterator it(m_children.constBegin()); it != end; ++it)

    {

        TreeItem *treeChild = *it; /* Cast away the QPointer with its casting operator. */

        ASTItem *astChild = static_cast<ASTItem *>(treeChild);

        retval += astChild->toString(indent + astIndent);

    }

    return retval;

}

QVariant ASTItem::data(const Qt::ItemDataRole role, int column) const

{

    if(role != Qt::DisplayRole)

        return QVariant();

    switch(column)

    {

        case 0:

            return m_name;

        case 1:

            return m_details;

        case 2:

            return m_staticType;

        case 3:

            return m_reqType;

        default:

        {

            Q_ASSERT(false);

            return QVariant();

        }

    }

}

int ASTItem::columnCount() const

{

    return 4;

}

TreeItem::List ASTItem::children() const

{

    return m_children;

}

void ASTItem::appendChild(TreeItem *item)

{

    m_children.append(item);

}

TreeItem *ASTItem::child(const unsigned int rowP) const

{

    return m_children.value(rowP);

}

unsigned int ASTItem::childCount() const

{

    return m_children.count();

}

TreeItem *ASTItem::parent() const

{

    return m_parent;

}

// vim: et:ts=4:sw=4:sts=4