Файл примера diagramtextitem.h graphicsview/diagramscene/diagramtextitem.h
#ifndef DIAGRAMTEXTITEM_H
#define DIAGRAMTEXTITEM_H
#include <QGraphicsTextItem>
#include <QPen>
class QFocusEvent;
class QGraphicsItem;
class QGraphicsScene;
class QGraphicsSceneMouseEvent;
class DiagramTextItem : public QGraphicsTextItem
{
Q_OBJECT
public:
enum { Type = UserType + 3 };
DiagramTextItem(QGraphicsItem *parent = 0, QGraphicsScene *scene = 0);
int type() const
{ return Type; }
signals:
void lostFocus(DiagramTextItem *item);
void selectedChange(QGraphicsItem *item);
protected:
QVariant itemChange(GraphicsItemChange change, const QVariant &value);
void focusOutEvent(QFocusEvent *event);
void mousePressEvent(QGraphicsSceneMouseEvent *event);
void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event);
};
#endif
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