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73 lines
1.8 KiB
C++
73 lines
1.8 KiB
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 "diagramitem.h"
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#include "diagramtextitem.h"
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#include <QGraphicsScene>
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QT_BEGIN_NAMESPACE
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class QGraphicsSceneMouseEvent;
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class QMenu;
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class QPointF;
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class QGraphicsLineItem;
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class QFont;
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class QGraphicsTextItem;
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class QColor;
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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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enum Mode { InsertItem, InsertLine, InsertText, MoveItem };
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explicit DiagramScene(QMenu *itemMenu, QObject *parent = nullptr);
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QFont font() const { return myFont; }
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QColor textColor() const { return myTextColor; }
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QColor itemColor() const { return myItemColor; }
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QColor lineColor() const { return myLineColor; }
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void setLineColor(const QColor &color);
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void setTextColor(const QColor &color);
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void setItemColor(const QColor &color);
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void setFont(const QFont &font);
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public slots:
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void setMode(Mode mode);
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void setItemType(DiagramItem::DiagramType type);
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void editorLostFocus(DiagramTextItem *item);
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signals:
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void itemInserted(DiagramItem *item);
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void textInserted(QGraphicsTextItem *item);
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void itemSelected(QGraphicsItem *item);
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protected:
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void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
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void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
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void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
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private:
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bool isItemChange(int type) const;
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DiagramItem::DiagramType myItemType;
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QMenu *myItemMenu;
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Mode myMode;
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bool leftButtonDown;
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QPointF startPoint;
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QGraphicsLineItem *line;
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QFont myFont;
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DiagramTextItem *textItem;
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QColor myTextColor;
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QColor myItemColor;
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QColor myLineColor;
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};
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//! [0]
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#endif // DIAGRAMSCENE_H
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