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38 lines
769 B
C++
38 lines
769 B
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef DIAGRAMSCENE_H
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#define DIAGRAMSCENE_H
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#include <QObject>
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#include <QGraphicsScene>
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class DiagramItem;
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QT_BEGIN_NAMESPACE
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class QGraphicsSceneDragDropEvent;
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class QGraphicsViewItem;
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QT_END_NAMESPACE
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//! [0]
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class DiagramScene : public QGraphicsScene
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{
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Q_OBJECT
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public:
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DiagramScene(QObject *parent = nullptr);
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signals:
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void itemMoved(DiagramItem *movedItem, const QPointF &movedFromPosition);
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protected:
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void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
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private:
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QGraphicsItem *movingItem = nullptr;
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QPointF oldPos;
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};
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//! [0]
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#endif
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