qt5base-lts/tests/benchmarks/gui/graphicsview/functional/GraphicsViewBenchmark/widgets/label.cpp

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/****************************************************************************
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the examples of the Qt Toolkit.
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** this package.
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****************************************************************************/
#include <QtGui>
#include "label.h"
Label::Label(const QString& text, QGraphicsItem *parent)
: GvbWidget(parent)
{
m_textItem = new QGraphicsSimpleTextItem(this);
setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
setContentsMargins(0, 0, 0, 0);
setText(text);
// This flag was introduced in Qt 4.6.
setFlag(QGraphicsItem::ItemHasNoContents, true);
}
Label::~Label()
{
}
void Label::setText(const QString& text)
{
m_textItem->setText(text);
prepareGeometryChange();
}
QString Label::text() const
{
return m_textItem->text();
}
void Label::setFont(const QFont font)
{
m_textItem->setFont(font);
}
void Label::resizeEvent(QGraphicsSceneResizeEvent *event)
{
GvbWidget::resizeEvent(event);
}
QSizeF Label::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
{
switch (which)
{
case Qt::MinimumSize:
// fall thru
case Qt::PreferredSize:
{
QFontMetricsF fm(m_textItem->font());
return QSizeF(fm.width(m_textItem->text()), fm.height());
}
default:
return GvbWidget::sizeHint(which, constraint);
}
}