blob: a75f5e2bbe31fba73341e1887f46f944d81c9ba9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef GRAPHWIDGET_H
#define GRAPHWIDGET_H
#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:
int timerId = 0;
Node *centerNode;
};
//! [0]
#endif // GRAPHWIDGET_H
|
