tools/qvfb/qvfbratedlg.cpp
author Alex Gilkes <alex.gilkes@nokia.com>
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/****************************************************************************
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**
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the tools applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qvfbratedlg.h"
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#include <QLayout>
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#include <QLabel>
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#include <qslider.h>
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#include <QPushButton>
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QT_BEGIN_NAMESPACE
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QVFbRateDialog::QVFbRateDialog(int rate, QWidget *parent)
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    : QDialog(parent)
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{
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    oldRate = rate;
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    QVBoxLayout *tl = new QVBoxLayout(this);
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    tl->setMargin(5);
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    QLabel *label = new QLabel("Target frame rate:", this);
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    tl->addWidget(label);
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    QHBoxLayout *hl = new QHBoxLayout();
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    tl->addItem(hl);
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    rateSlider = new QSlider(Qt::Horizontal);
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    rateSlider->setMinimum(1);
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    rateSlider->setMaximum(100);
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    rateSlider->setPageStep(10);
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    rateSlider->setValue(rate);
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    hl->addWidget(rateSlider);
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    connect(rateSlider, SIGNAL(valueChanged(int)), this, SLOT(rateChanged(int)));
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    rateLabel = new QLabel(QString("%1fps").arg(rate), this);
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    hl->addWidget(rateLabel);
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    hl = new QHBoxLayout();
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    tl->addItem(hl);
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    QPushButton *pb = new QPushButton("OK", this);
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    connect(pb, SIGNAL(clicked()), this, SLOT(ok()));
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    hl->addWidget(pb);
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    pb = new QPushButton("Cancel", this);
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    connect(pb, SIGNAL(clicked()), this, SLOT(cancel()));
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    hl->addWidget(pb);
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}
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void QVFbRateDialog::rateChanged(int r)
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{
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    if (rateSlider->value() != r)
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	rateSlider->setValue(r);
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    rateLabel->setText(QString("%1fps").arg(r));
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    emit updateRate(r);
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}
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void QVFbRateDialog::cancel()
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{
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    rateChanged(oldRate);
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    reject();
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}
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void QVFbRateDialog::ok()
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{
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    oldRate = rateSlider->value();
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    accept();
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}
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QT_END_NAMESPACE