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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef GRAPHWIDGET_H
#define GRAPHWIDGET_H
#include <QBasicTimer>
#include <QGraphicsView>
class Node;
//! [0]
class GraphWidget : public QGraphicsView
{
Q_OBJECT
public:
GraphWidget(QWidget *parent = nullptr);
void itemMoved();
public slots:
void shuffle();
void zoomIn();
void zoomOut();
protected:
void keyPressEvent(QKeyEvent *event) override;
void timerEvent(QTimerEvent *event) override;
#if QT_CONFIG(wheelevent)
void wheelEvent(QWheelEvent *event) override;
#endif
void drawBackground(QPainter *painter, const QRectF &rect) override;
void scaleView(qreal scaleFactor);
private:
QBasicTimer timer;
Node *centerNode;
};
//! [0]
#endif // GRAPHWIDGET_H
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