diff options
Diffstat (limited to 'examples/multimedia/spectrum/app/tonegeneratordialog.cpp')
-rw-r--r-- | examples/multimedia/spectrum/app/tonegeneratordialog.cpp | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/examples/multimedia/spectrum/app/tonegeneratordialog.cpp b/examples/multimedia/spectrum/app/tonegeneratordialog.cpp new file mode 100644 index 000000000..27c9d0dba --- /dev/null +++ b/examples/multimedia/spectrum/app/tonegeneratordialog.cpp @@ -0,0 +1,144 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia Plc 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 +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "tonegeneratordialog.h" +#include <QComboBox> +#include <QDialogButtonBox> +#include <QLabel> +#include <QPushButton> +#include <QVBoxLayout> +#include <QCheckBox> +#include <QSlider> +#include <QSpinBox> + +const int ToneGeneratorFreqMin = 1; +const int ToneGeneratorFreqMax = 1000; +const int ToneGeneratorFreqDefault = 440; +const int ToneGeneratorAmplitudeDefault = 75; + +ToneGeneratorDialog::ToneGeneratorDialog(QWidget *parent) + : QDialog(parent) + , m_toneGeneratorSweepCheckBox(new QCheckBox(tr("Frequency sweep"), this)) + , m_frequencySweepEnabled(true) + , m_toneGeneratorControl(new QWidget(this)) + , m_toneGeneratorFrequencyControl(new QWidget(this)) + , m_frequencySlider(new QSlider(Qt::Horizontal, this)) + , m_frequencySpinBox(new QSpinBox(this)) + , m_frequency(ToneGeneratorFreqDefault) + , m_amplitudeSlider(new QSlider(Qt::Horizontal, this)) +{ + QVBoxLayout *dialogLayout = new QVBoxLayout(this); + + m_toneGeneratorSweepCheckBox->setChecked(true); + + // Configure tone generator controls + m_frequencySlider->setRange(ToneGeneratorFreqMin, ToneGeneratorFreqMax); + m_frequencySlider->setValue(ToneGeneratorFreqDefault); + m_frequencySpinBox->setRange(ToneGeneratorFreqMin, ToneGeneratorFreqMax); + m_frequencySpinBox->setValue(ToneGeneratorFreqDefault); + m_amplitudeSlider->setRange(0, 100); + m_amplitudeSlider->setValue(ToneGeneratorAmplitudeDefault); + + // Add widgets to layout + QGridLayout *frequencyControlLayout = new QGridLayout; + QLabel *frequencyLabel = new QLabel(tr("Frequency (Hz)"), this); + frequencyControlLayout->addWidget(frequencyLabel, 0, 0, 2, 1); + frequencyControlLayout->addWidget(m_frequencySlider, 0, 1); + frequencyControlLayout->addWidget(m_frequencySpinBox, 1, 1); + m_toneGeneratorFrequencyControl->setLayout(frequencyControlLayout); + m_toneGeneratorFrequencyControl->setEnabled(false); + + QGridLayout *toneGeneratorLayout = new QGridLayout; + QLabel *amplitudeLabel = new QLabel(tr("Amplitude"), this); + toneGeneratorLayout->addWidget(m_toneGeneratorSweepCheckBox, 0, 1); + toneGeneratorLayout->addWidget(m_toneGeneratorFrequencyControl, 1, 0, 1, 2); + toneGeneratorLayout->addWidget(amplitudeLabel, 2, 0); + toneGeneratorLayout->addWidget(m_amplitudeSlider, 2, 1); + m_toneGeneratorControl->setLayout(toneGeneratorLayout); + m_toneGeneratorControl->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed); + dialogLayout->addWidget(m_toneGeneratorControl); + + // Connect + CHECKED_CONNECT(m_toneGeneratorSweepCheckBox, SIGNAL(toggled(bool)), + this, SLOT(frequencySweepEnabled(bool))); + CHECKED_CONNECT(m_frequencySlider, SIGNAL(valueChanged(int)), + m_frequencySpinBox, SLOT(setValue(int))); + CHECKED_CONNECT(m_frequencySpinBox, SIGNAL(valueChanged(int)), + m_frequencySlider, SLOT(setValue(int))); + + // Add standard buttons to layout + QDialogButtonBox *buttonBox = new QDialogButtonBox(this); + buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel); + dialogLayout->addWidget(buttonBox); + + // Connect standard buttons + CHECKED_CONNECT(buttonBox->button(QDialogButtonBox::Ok), SIGNAL(clicked()), + this, SLOT(accept())); + CHECKED_CONNECT(buttonBox->button(QDialogButtonBox::Cancel), SIGNAL(clicked()), + this, SLOT(reject())); + + setLayout(dialogLayout); +} + +ToneGeneratorDialog::~ToneGeneratorDialog() +{ + +} + +bool ToneGeneratorDialog::isFrequencySweepEnabled() const +{ + return m_toneGeneratorSweepCheckBox->isChecked(); +} + +qreal ToneGeneratorDialog::frequency() const +{ + return qreal(m_frequencySlider->value()); +} + +qreal ToneGeneratorDialog::amplitude() const +{ + return qreal(m_amplitudeSlider->value()) / 100.0; +} + +void ToneGeneratorDialog::frequencySweepEnabled(bool enabled) +{ + m_frequencySweepEnabled = enabled; + m_toneGeneratorFrequencyControl->setEnabled(!enabled); +} |