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50
51#ifndef DIAGRAMITEM_H
52#define DIAGRAMITEM_H
53
54#include <QGraphicsPixmapItem>
55#include <QList>
56
57QT_BEGIN_NAMESPACE
58class QPixmap;
59class QGraphicsSceneContextMenuEvent;
60class QMenu;
61class QPolygonF;
62QT_END_NAMESPACE
63
64class Arrow;
65
66//! [0]
67class DiagramItem : public QGraphicsPolygonItem
68{
69public:
70 enum { Type = UserType + 15 };
71 enum DiagramType { Step, Conditional, StartEnd, Io };
72
73 DiagramItem(DiagramType diagramType, QMenu *contextMenu, QGraphicsItem *parent = nullptr);
74
75 void removeArrow(Arrow *arrow);
76 void removeArrows();
77 DiagramType diagramType() const { return myDiagramType; }
78 QPolygonF polygon() const { return myPolygon; }
79 void addArrow(Arrow *arrow);
80 QPixmap image() const;
81 int type() const override { return Type; }
82
83protected:
84 void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
85 QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
86
87private:
88 DiagramType myDiagramType;
89 QPolygonF myPolygon;
90 QMenu *myContextMenu;
91 QList<Arrow *> arrows;
92};
93//! [0]
94
95#endif // DIAGRAMITEM_H
96