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50
51#include "tonegeneratordialog.h"
52#include <QComboBox>
53#include <QDialogButtonBox>
54#include <QLabel>
55#include <QPushButton>
56#include <QVBoxLayout>
57#include <QCheckBox>
58#include <QSlider>
59#include <QSpinBox>
60
61const int ToneGeneratorFreqMin = 1;
62const int ToneGeneratorFreqMax = 1000;
63const int ToneGeneratorFreqDefault = 440;
64const int ToneGeneratorAmplitudeDefault = 75;
65
66ToneGeneratorDialog::ToneGeneratorDialog(QWidget *parent)
67 : QDialog(parent)
68 , m_toneGeneratorSweepCheckBox(new QCheckBox(tr(s: "Frequency sweep"), this))
69 , m_frequencySweepEnabled(true)
70 , m_toneGeneratorControl(new QWidget(this))
71 , m_toneGeneratorFrequencyControl(new QWidget(this))
72 , m_frequencySlider(new QSlider(Qt::Horizontal, this))
73 , m_frequencySpinBox(new QSpinBox(this))
74 , m_frequency(ToneGeneratorFreqDefault)
75 , m_amplitudeSlider(new QSlider(Qt::Horizontal, this))
76{
77 QVBoxLayout *dialogLayout = new QVBoxLayout(this);
78
79 m_toneGeneratorSweepCheckBox->setChecked(true);
80
81 // Configure tone generator controls
82 m_frequencySlider->setRange(min: ToneGeneratorFreqMin, max: ToneGeneratorFreqMax);
83 m_frequencySlider->setValue(ToneGeneratorFreqDefault);
84 m_frequencySpinBox->setRange(min: ToneGeneratorFreqMin, max: ToneGeneratorFreqMax);
85 m_frequencySpinBox->setValue(ToneGeneratorFreqDefault);
86 m_amplitudeSlider->setRange(min: 0, max: 100);
87 m_amplitudeSlider->setValue(ToneGeneratorAmplitudeDefault);
88
89 // Add widgets to layout
90 QGridLayout *frequencyControlLayout = new QGridLayout;
91 QLabel *frequencyLabel = new QLabel(tr(s: "Frequency (Hz)"), this);
92 frequencyControlLayout->addWidget(frequencyLabel, row: 0, column: 0, rowSpan: 2, columnSpan: 1);
93 frequencyControlLayout->addWidget(m_frequencySlider, row: 0, column: 1);
94 frequencyControlLayout->addWidget(m_frequencySpinBox, row: 1, column: 1);
95 m_toneGeneratorFrequencyControl->setLayout(frequencyControlLayout);
96 m_toneGeneratorFrequencyControl->setEnabled(false);
97
98 QGridLayout *toneGeneratorLayout = new QGridLayout;
99 QLabel *amplitudeLabel = new QLabel(tr(s: "Amplitude"), this);
100 toneGeneratorLayout->addWidget(m_toneGeneratorSweepCheckBox, row: 0, column: 1);
101 toneGeneratorLayout->addWidget(m_toneGeneratorFrequencyControl, row: 1, column: 0, rowSpan: 1, columnSpan: 2);
102 toneGeneratorLayout->addWidget(amplitudeLabel, row: 2, column: 0);
103 toneGeneratorLayout->addWidget(m_amplitudeSlider, row: 2, column: 1);
104 m_toneGeneratorControl->setLayout(toneGeneratorLayout);
105 m_toneGeneratorControl->setSizePolicy(hor: QSizePolicy::Preferred, ver: QSizePolicy::Fixed);
106 dialogLayout->addWidget(m_toneGeneratorControl);
107
108 // Connect
109 connect(sender: m_toneGeneratorSweepCheckBox, signal: &QCheckBox::toggled,
110 receiver: this, slot: &ToneGeneratorDialog::frequencySweepEnabled);
111 connect(sender: m_frequencySlider, signal: &QSlider::valueChanged,
112 receiver: m_frequencySpinBox, slot: &QSpinBox::setValue);
113 connect(sender: m_frequencySpinBox, signal: QOverload<int>::of(ptr: &QSpinBox::valueChanged),
114 receiver: m_frequencySlider, slot: &QSlider::setValue);
115
116 // Add standard buttons to layout
117 QDialogButtonBox *buttonBox = new QDialogButtonBox(this);
118 buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
119 dialogLayout->addWidget(buttonBox);
120
121 // Connect standard buttons
122 connect(sender: buttonBox->button(which: QDialogButtonBox::Ok), signal: &QPushButton::clicked,
123 receiver: this, slot: &ToneGeneratorDialog::accept);
124 connect(sender: buttonBox->button(which: QDialogButtonBox::Cancel), signal: &QPushButton::clicked,
125 receiver: this, slot: &ToneGeneratorDialog::reject);
126
127 setLayout(dialogLayout);
128}
129
130ToneGeneratorDialog::~ToneGeneratorDialog()
131{
132
133}
134
135bool ToneGeneratorDialog::isFrequencySweepEnabled() const
136{
137 return m_toneGeneratorSweepCheckBox->isChecked();
138}
139
140qreal ToneGeneratorDialog::frequency() const
141{
142 return qreal(m_frequencySlider->value());
143}
144
145qreal ToneGeneratorDialog::amplitude() const
146{
147 return qreal(m_amplitudeSlider->value()) / 100.0;
148}
149
150void ToneGeneratorDialog::frequencySweepEnabled(bool enabled)
151{
152 m_frequencySweepEnabled = enabled;
153 m_toneGeneratorFrequencyControl->setEnabled(!enabled);
154}
155

source code of qtmultimedia/examples/multimedia/spectrum/app/tonegeneratordialog.cpp