45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
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#pragma once
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#include <QGraphicsObject>
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#include <QSet>
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class ArrowItem;
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class BlockItem final : public QGraphicsObject {
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Q_OBJECT
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public:
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enum class Port { Input, Control, Output, Mechanism };
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enum { Type = UserType + 1 };
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explicit BlockItem(QString title = "Function", QGraphicsItem* parent = nullptr, int id = -1);
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QRectF boundingRect() const override;
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void paint(QPainter* p, const QStyleOptionGraphicsItem*, QWidget*) override;
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int type() const override { return Type; }
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QString title() const { return m_title; }
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void setTitle(const QString& t);
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int id() const { return m_id; }
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void setId(int id) { m_id = id; }
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QPointF portScenePos(Port p) const;
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bool hitTestPort(const QPointF& scenePos, Port* outPort, QPointF* outLocalPos = nullptr, qreal radiusPx = 10.0) const;
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void addArrow(ArrowItem* a);
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void removeArrow(ArrowItem* a);
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signals:
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void geometryChanged();
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protected:
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QVariant itemChange(GraphicsItemChange change, const QVariant& value) override;
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void mouseDoubleClickEvent(QGraphicsSceneMouseEvent* e) override;
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private:
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QString m_title;
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QRectF m_rect; // local rect
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int m_id;
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QSet<ArrowItem*> m_arrows;
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QPointF portLocalPos(Port p) const;
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QPair<QPointF, QPointF> portSegment(Port p) const;
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};
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