diagramtextitem.cpp Example File

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 #include <QtGui>

 #include "diagramtextitem.h"
 #include "diagramscene.h"

 DiagramTextItem::DiagramTextItem(QGraphicsItem *parent, QGraphicsScene *scene)
     : QGraphicsTextItem(parent, scene)
 {
     setFlag(QGraphicsItem::ItemIsMovable);
     setFlag(QGraphicsItem::ItemIsSelectable);
 }

 QVariant DiagramTextItem::itemChange(GraphicsItemChange change,
                      const QVariant &value)
 {
     if (change == QGraphicsItem::ItemSelectedHasChanged)
         emit selectedChange(this);
     return value;
 }

 void DiagramTextItem::focusOutEvent(QFocusEvent *event)
 {
     setTextInteractionFlags(Qt::NoTextInteraction);
     emit lostFocus(this);
     QGraphicsTextItem::focusOutEvent(event);
 }

 void DiagramTextItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
 {
     if (textInteractionFlags() == Qt::NoTextInteraction)
         setTextInteractionFlags(Qt::TextEditorInteraction);
     QGraphicsTextItem::mouseDoubleClickEvent(event);
 }