/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
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** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
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**
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** modification, are permitted provided that the following conditions are
** met:
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**     notice, this list of conditions and the following disclaimer.
**   * Redistributions in binary form must reproduce the above copyright
**     notice, this list of conditions and the following disclaimer in
**     the documentation and/or other materials provided with the
**     distribution.
**   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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****************************************************************************/

#ifndef GRAPHWIDGET_H
#define GRAPHWIDGET_H

#include <Standard_WarningsDisable.hxx>
#include <QGraphicsView>
#include <Standard_WarningsRestore.hxx>

#include "FThread.h"

#include <TDocStd_Document.hxx>
#include <TDF_Label.hxx>

class Node;

class GraphWidget : public QGraphicsView
{
    Q_OBJECT

public:
    GraphWidget(QWidget* parent);
    ~GraphWidget();
    
    bool createModel(const Handle(TDocStd_Document)& doc);
    Handle(TDocStd_Document) getDocument() { return myDocument; }

    Node* findNode(const TDF_Label& );
    void  setNbThreads(const int nb);
    int   getNbThreads();
    void  accelerateThread(const int thread_index);
    void  slowDownThread(const int thread_index);
    void  compute();

    void setFinished();
    bool isFinished();

protected:
    void wheelEvent(QWheelEvent *event);
    void drawBackground(QPainter *painter, const QRectF &rect);
    void scaleView(qreal scaleFactor);

private:
    Handle(TDocStd_Document) myDocument;
    int                      myNbThreads;
    FThread*                 myThread1;
    FThread*                 myThread2;
    FThread*                 myThread3;
    FThread*                 myThread4;
    int                      myNbFinishedThreads;
};

#endif