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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef DIAGRAMSCENE_H
#define DIAGRAMSCENE_H
#include "diagramitem.h"
#include "diagramtextitem.h"
#include <QGraphicsScene>
QT_BEGIN_NAMESPACE
class QGraphicsSceneMouseEvent;
class QMenu;
class QPointF;
class QGraphicsLineItem;
class QFont;
class QGraphicsTextItem;
class QColor;
QT_END_NAMESPACE
//! [0]
class DiagramScene : public QGraphicsScene
{
Q_OBJECT
public:
enum Mode { InsertItem, InsertLine, InsertText, MoveItem };
explicit DiagramScene(QMenu *itemMenu, QObject *parent = nullptr);
QFont font() const { return myFont; }
QColor textColor() const { return myTextColor; }
QColor itemColor() const { return myItemColor; }
QColor lineColor() const { return myLineColor; }
void setLineColor(const QColor &color);
void setTextColor(const QColor &color);
void setItemColor(const QColor &color);
void setFont(const QFont &font);
public slots:
void setMode(Mode mode);
void setItemType(DiagramItem::DiagramType type);
void editorLostFocus(DiagramTextItem *item);
signals:
void itemInserted(DiagramItem *item);
void textInserted(QGraphicsTextItem *item);
void itemSelected(QGraphicsItem *item);
protected:
void mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
void mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
void mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent) override;
private:
bool isItemChange(int type) const;
DiagramItem::DiagramType myItemType;
QMenu *myItemMenu;
Mode myMode;
bool leftButtonDown;
QPointF startPoint;
QGraphicsLineItem *line;
QFont myFont;
DiagramTextItem *textItem;
QColor myTextColor;
QColor myItemColor;
QColor myLineColor;
};
//! [0]
#endif // DIAGRAMSCENE_H
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