/*  This file is part of the KDE libraries and the Kate part.
 *
 *  Copyright (C) 2007 David Nolden <david.nolden.kdevelop@art-master.de>
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Library General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Library General Public License for more details.
 *
 *  You should have received a copy of the GNU Library General Public License
 *  along with this library; see the file COPYING.LIB.  If not, write to
 *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 *  Boston, MA 02110-1301, USA.
 */

#ifndef KATEARGUMENTHINTMODEL_H
#define KATEARGUMENTHINTMODEL_H

#include <QtCore/qabstractitemmodel.h>
#include "katecompletionmodel.h"
#include "expandingtree/expandingwidgetmodel.h"

class KateCompletionWidget;

class KateArgumentHintModel : public ExpandingWidgetModel {
  Q_OBJECT
  public:
    KateArgumentHintModel( KateCompletionWidget* parent );

    virtual QVariant data ( const QModelIndex & index, int role = Qt::DisplayRole ) const;
    
    virtual int rowCount ( const QModelIndex & parent ) const;

    virtual int columnCount ( const QModelIndex & /*parent*/ ) const;

    virtual QTreeView* treeView() const;

    virtual bool indexIsItem(const QModelIndex& index) const;

    void emitDataChanged( const QModelIndex& start, const QModelIndex& end );
    
    //Returns the index in the source-model for an index within this model
    QModelIndex mapToSource( const QModelIndex & proxyIndex ) const;
    
    void buildRows();
    void clear();
  protected:
    virtual int contextMatchQuality(const QModelIndex& row) const;
  public slots:
    void parentModelReset();
  signals:
    void contentStateChanged(bool hasContent);
  private:
    KateCompletionModel::Group* group() const;
    KateCompletionModel* model() const;

    QList<int> m_rows; //Maps rows to either a positive row-number in the source group, or to a negative number which indicates a label
    
    KateCompletionWidget* m_parent;
};

#endif