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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#ifndef THREADSHANDLER_H
#define THREADSHANDLER_H

#include <QtCore/QAbstractTableModel>
#include <QtCore/QList>

#include <QtGui/QIcon>


namespace Debugger {
class DebuggerEngine;

namespace Internal {

////////////////////////////////////////////////////////////////////////
//
// ThreadData
//
////////////////////////////////////////////////////////////////////////

/*! A structure containing information about a single thread */
struct ThreadData
{
    ThreadData(int threadId = 0);

    enum {
        IdColumn,
        AddressColumn,
        FunctionColumn,
        FileColumn,
        LineColumn,
        StateColumn,
        NameColumn,
        CoreColumn,
        ColumnCount = CoreColumn
    };

    // Permanent data.
    int id;
    QString targetId;
    QString core;

    // State information when stopped
    void notifyRunning(); // Clear state information

    int frameLevel;
    quint64 address;
    QString function;
    QString fileName;
    QString state;
    int lineNumber;
    QString name;
};

typedef QVector<ThreadData> Threads;


////////////////////////////////////////////////////////////////////////
//
// ThreadsHandler
//
////////////////////////////////////////////////////////////////////////

/*! A model to represent the running threads in a QTreeView or ComboBox */
class ThreadsHandler : public QAbstractTableModel
{
    Q_OBJECT

public:
    explicit ThreadsHandler(DebuggerEngine *engine);

    int currentThread() const { return m_currentIndex; }
    void setCurrentThread(int index);
    int currentThreadId() const;
    void setCurrentThreadId(int id);
    int indexOf(int threadId) const;

    void selectThread(int index);
    void setThreads(const Threads &threads);
    void removeAll();
    Threads threads() const;
    QAbstractItemModel *model() { return this; }

    // Clear out all frame information
    void notifyRunning();

private:
    int rowCount(const QModelIndex &parent = QModelIndex()) const;
    int columnCount(const QModelIndex &parent = QModelIndex()) const;
    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const;
    bool setData(const QModelIndex &index, const QVariant &value, int role);
    QVariant headerData(int section, Qt::Orientation orientation,
        int role = Qt::DisplayRole) const;

private:
    DebuggerEngine *m_engine;
    Threads m_threads;
    int m_currentIndex;
    const QIcon m_positionIcon;
    const QIcon m_emptyIcon;
};

} // namespace Internal
} // namespace Debugger

#endif // THREADSHANDLER_H