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50 
51 #include "diagramtextitem.h"
52 #include "diagramscene.h"
53 
54 //! [0]
DiagramTextItem(QGraphicsItem * parent)55 DiagramTextItem::DiagramTextItem(QGraphicsItem *parent)
56     : QGraphicsTextItem(parent)
57 {
58     setFlag(QGraphicsItem::ItemIsMovable);
59     setFlag(QGraphicsItem::ItemIsSelectable);
60 }
61 //! [0]
62 
63 //! [1]
itemChange(GraphicsItemChange change,const QVariant & value)64 QVariant DiagramTextItem::itemChange(GraphicsItemChange change,
65                      const QVariant &value)
66 {
67     if (change == QGraphicsItem::ItemSelectedHasChanged)
68         emit selectedChange(this);
69     return value;
70 }
71 //! [1]
72 
73 //! [2]
focusOutEvent(QFocusEvent * event)74 void DiagramTextItem::focusOutEvent(QFocusEvent *event)
75 {
76     setTextInteractionFlags(Qt::NoTextInteraction);
77     emit lostFocus(this);
78     QGraphicsTextItem::focusOutEvent(event);
79 }
80 //! [2]
81 
82 //! [5]
mouseDoubleClickEvent(QGraphicsSceneMouseEvent * event)83 void DiagramTextItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
84 {
85     if (textInteractionFlags() == Qt::NoTextInteraction)
86         setTextInteractionFlags(Qt::TextEditorInteraction);
87     QGraphicsTextItem::mouseDoubleClickEvent(event);
88 }
89 //! [5]
90