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
43
44
45
46
47
48
|
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef DIAGRAMITEM_H
#define DIAGRAMITEM_H
#include <QGraphicsPixmapItem>
#include <QList>
QT_BEGIN_NAMESPACE
class QPixmap;
class QGraphicsSceneContextMenuEvent;
class QMenu;
class QPolygonF;
QT_END_NAMESPACE
class Arrow;
//! [0]
class DiagramItem : public QGraphicsPolygonItem
{
public:
enum { Type = UserType + 15 };
enum DiagramType { Step, Conditional, StartEnd, Io };
DiagramItem(DiagramType diagramType, QMenu *contextMenu, QGraphicsItem *parent = nullptr);
void removeArrow(Arrow *arrow);
void removeArrows();
DiagramType diagramType() const { return myDiagramType; }
QPolygonF polygon() const { return myPolygon; }
void addArrow(Arrow *arrow);
QPixmap image() const;
int type() const override { return Type; }
protected:
void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
private:
DiagramType myDiagramType;
QPolygonF myPolygon;
QMenu *myContextMenu;
QList<Arrow *> arrows;
};
//! [0]
#endif // DIAGRAMITEM_H
|
