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

source code of qtbase/examples/widgets/graphicsview/diagramscene/diagramtextitem.cpp