Move the QtMultimedia spectrum demo to QtMultimediaKit
Change-Id: I60d7897eb84dfbe2ce5af5adeb23b33270aa7d7c Reviewed-on: http://codereview.qt.nokia.com/1483 Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>
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Michael Goddard
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Qt by Nokia
Qt by Nokia
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147
examples/spectrum/app/tonegeneratordialog.cpp
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147
examples/spectrum/app/tonegeneratordialog.cpp
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/****************************************************************************
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**
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** Copyright (C) 2011 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 examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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** the names of its contributors may be used to endorse or promote
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** products derived from this software without specific prior written
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** permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "tonegeneratordialog.h"
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#include <QComboBox>
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#include <QDialogButtonBox>
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#include <QLabel>
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#include <QPushButton>
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#include <QVBoxLayout>
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#include <QCheckBox>
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#include <QSlider>
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#include <QSpinBox>
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const int ToneGeneratorFreqMin = 1;
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const int ToneGeneratorFreqMax = 1000;
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const int ToneGeneratorFreqDefault = 440;
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const int ToneGeneratorAmplitudeDefault = 75;
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ToneGeneratorDialog::ToneGeneratorDialog(QWidget *parent)
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: QDialog(parent)
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, m_toneGeneratorSweepCheckBox(new QCheckBox(tr("Frequency sweep"), this))
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, m_frequencySweepEnabled(true)
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, m_toneGeneratorControl(new QWidget(this))
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, m_toneGeneratorFrequencyControl(new QWidget(this))
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, m_frequencySlider(new QSlider(Qt::Horizontal, this))
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, m_frequencySpinBox(new QSpinBox(this))
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, m_frequency(ToneGeneratorFreqDefault)
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, m_amplitudeSlider(new QSlider(Qt::Horizontal, this))
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{
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QVBoxLayout *dialogLayout = new QVBoxLayout(this);
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m_toneGeneratorSweepCheckBox->setChecked(true);
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// Configure tone generator controls
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m_frequencySlider->setRange(ToneGeneratorFreqMin, ToneGeneratorFreqMax);
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m_frequencySlider->setValue(ToneGeneratorFreqDefault);
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m_frequencySpinBox->setRange(ToneGeneratorFreqMin, ToneGeneratorFreqMax);
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m_frequencySpinBox->setValue(ToneGeneratorFreqDefault);
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m_amplitudeSlider->setRange(0, 100);
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m_amplitudeSlider->setValue(ToneGeneratorAmplitudeDefault);
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// Add widgets to layout
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QScopedPointer<QGridLayout> frequencyControlLayout(new QGridLayout);
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QLabel *frequencyLabel = new QLabel(tr("Frequency (Hz)"), this);
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frequencyControlLayout->addWidget(frequencyLabel, 0, 0, 2, 1);
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frequencyControlLayout->addWidget(m_frequencySlider, 0, 1);
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frequencyControlLayout->addWidget(m_frequencySpinBox, 1, 1);
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m_toneGeneratorFrequencyControl->setLayout(frequencyControlLayout.data());
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frequencyControlLayout.take(); // ownership transferred to m_toneGeneratorFrequencyControl
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m_toneGeneratorFrequencyControl->setEnabled(false);
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QScopedPointer<QGridLayout> toneGeneratorLayout(new QGridLayout);
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QLabel *amplitudeLabel = new QLabel(tr("Amplitude"), this);
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toneGeneratorLayout->addWidget(m_toneGeneratorSweepCheckBox, 0, 1);
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toneGeneratorLayout->addWidget(m_toneGeneratorFrequencyControl, 1, 0, 1, 2);
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toneGeneratorLayout->addWidget(amplitudeLabel, 2, 0);
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toneGeneratorLayout->addWidget(m_amplitudeSlider, 2, 1);
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m_toneGeneratorControl->setLayout(toneGeneratorLayout.data());
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m_toneGeneratorControl->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
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dialogLayout->addWidget(m_toneGeneratorControl);
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toneGeneratorLayout.take(); // ownership transferred
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// Connect
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CHECKED_CONNECT(m_toneGeneratorSweepCheckBox, SIGNAL(toggled(bool)),
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this, SLOT(frequencySweepEnabled(bool)));
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CHECKED_CONNECT(m_frequencySlider, SIGNAL(valueChanged(int)),
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m_frequencySpinBox, SLOT(setValue(int)));
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CHECKED_CONNECT(m_frequencySpinBox, SIGNAL(valueChanged(int)),
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m_frequencySlider, SLOT(setValue(int)));
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// Add standard buttons to layout
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QDialogButtonBox *buttonBox = new QDialogButtonBox(this);
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buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
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dialogLayout->addWidget(buttonBox);
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// Connect standard buttons
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CHECKED_CONNECT(buttonBox->button(QDialogButtonBox::Ok), SIGNAL(clicked()),
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this, SLOT(accept()));
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CHECKED_CONNECT(buttonBox->button(QDialogButtonBox::Cancel), SIGNAL(clicked()),
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this, SLOT(reject()));
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setLayout(dialogLayout);
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}
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ToneGeneratorDialog::~ToneGeneratorDialog()
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{
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}
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bool ToneGeneratorDialog::isFrequencySweepEnabled() const
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{
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return m_toneGeneratorSweepCheckBox->isChecked();
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}
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qreal ToneGeneratorDialog::frequency() const
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{
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return qreal(m_frequencySlider->value());
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}
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qreal ToneGeneratorDialog::amplitude() const
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{
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return qreal(m_amplitudeSlider->value()) / 100.0;
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}
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void ToneGeneratorDialog::frequencySweepEnabled(bool enabled)
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{
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m_frequencySweepEnabled = enabled;
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m_toneGeneratorFrequencyControl->setEnabled(!enabled);
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}
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