1 files changed, 105 insertions, 0 deletions
diff --git a/examples/multimedia/spectrum/tonegeneratordialog.cpp b/examples/multimedia/spectrum/tonegeneratordialog.cpp
new file mode 100644
index 000000000..1c98c2b86
--- /dev/null
+++ b/examples/multimedia/spectrum/tonegeneratordialog.cpp
@@ -0,0 +1,105 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include "tonegeneratordialog.h"
+
+#include <QCheckBox>
+#include <QComboBox>
+#include <QDialogButtonBox>
+#include <QLabel>
+#include <QPushButton>
+#include <QSlider>
+#include <QSpinBox>
+#include <QVBoxLayout>
+
+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_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
+    connect(m_toneGeneratorSweepCheckBox, &QCheckBox::toggled, this,
+            &ToneGeneratorDialog::frequencySweepEnabled);
+    connect(m_frequencySlider, &QSlider::valueChanged, m_frequencySpinBox, &QSpinBox::setValue);
+    connect(m_frequencySpinBox, QOverload<int>::of(&QSpinBox::valueChanged), m_frequencySlider,
+            &QSlider::setValue);
+
+    // Add standard buttons to layout
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(this);
+    buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
+    dialogLayout->addWidget(buttonBox);
+
+    // Connect standard buttons
+    connect(buttonBox->button(QDialogButtonBox::Ok), &QPushButton::clicked, this,
+            &ToneGeneratorDialog::accept);
+    connect(buttonBox->button(QDialogButtonBox::Cancel), &QPushButton::clicked, this,
+            &ToneGeneratorDialog::reject);
+
+    setLayout(dialogLayout);
+}
+
+ToneGeneratorDialog::~ToneGeneratorDialog() = default;
+
+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);
+}
+
+#include "moc_tonegeneratordialog.cpp"