qt5base-lts/examples/graphicsview/diagramscene/diagramtextitem.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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****************************************************************************/
#include <QtWidgets>
#include "diagramtextitem.h"
#include "diagramscene.h"
//! [0]
DiagramTextItem::DiagramTextItem(QGraphicsItem *parent, QGraphicsScene *scene)
: QGraphicsTextItem(parent, scene)
{
setFlag(QGraphicsItem::ItemIsMovable);
setFlag(QGraphicsItem::ItemIsSelectable);
}
//! [0]
//! [1]
QVariant DiagramTextItem::itemChange(GraphicsItemChange change,
const QVariant &value)
{
if (change == QGraphicsItem::ItemSelectedHasChanged)
emit selectedChange(this);
return value;
}
//! [1]
//! [2]
void DiagramTextItem::focusOutEvent(QFocusEvent *event)
{
setTextInteractionFlags(Qt::NoTextInteraction);
emit lostFocus(this);
QGraphicsTextItem::focusOutEvent(event);
}
//! [2]
//! [5]
void DiagramTextItem::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
if (textInteractionFlags() == Qt::NoTextInteraction)
setTextInteractionFlags(Qt::TextEditorInteraction);
QGraphicsTextItem::mouseDoubleClickEvent(event);
}
//! [5]