/*
  statemodel.h

  This file is part of GammaRay, the Qt application inspection and
  manipulation tool.

  Licensees holding valid commercial KDAB GammaRay licenses may use this file in
  accordance with GammaRay Commercial License Agreement provided with the Software.

  Contact info@kdab.com if any conditions of this licensing are not clear to you.

  Copyright (C) 2010-2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
  Author: Stephen Kelly <stephen.kelly@kdab.com>

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 2 of the License, or
  (at your option) any later version.

  This program 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GAMMARAY_STATEMACHINEVIEWER_STATEMODEL_H
#define GAMMARAY_STATEMACHINEVIEWER_STATEMODEL_H

#include <core/objectmodelbase.h>

class QAbstractTransition;
class QStateMachine;

namespace GammaRay {

class StateModelPrivate;

class StateModel : public ObjectModelBase<QAbstractItemModel>
{
  Q_OBJECT

  public:
    enum Roles {
      TransitionsRole = ObjectModel::UserRole + 1,
      IsInitialStateRole,
      StateObjectRole = ObjectModel::UserRole + 11
    };
    explicit StateModel(QObject *parent = 0);
    ~StateModel();

    void setStateMachine(QStateMachine *stateMachine);
    QStateMachine *stateMachine() const;

    int rowCount(const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;
    QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const Q_DECL_OVERRIDE;
    QModelIndex parent(const QModelIndex &index) const Q_DECL_OVERRIDE;
    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const Q_DECL_OVERRIDE;

  protected:
    Q_DECLARE_PRIVATE(StateModel)
    StateModelPrivate * const d_ptr;

  private:
    Q_PRIVATE_SLOT(d_func(), void stateConfigurationChanged())
    Q_PRIVATE_SLOT(d_func(), void handleMachineDestroyed(QObject*))
};

}

#endif
