Added controls to change various parameters

mainwindow.cpp

@@ -0,0 +1,92 @@
+#include "mainwindow.h"
+
+#include <QAudioInput>
+#include <QAudioFormat>
+#include <QAudioDeviceInfo>
+#include <QButtonGroup>
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    m_audioDevices(QAudioDeviceInfo::availableDevices(QAudio::AudioInput))
+{
+    m_ui.setupUi(this);
+
+    connect(&m_device, &Device::samplesReceived, m_ui.widget, &OsciWidget::renderSamples);
+
+    //connect(&m_fakeDevice, &FakeDevice::samplesReceived, m_ui.widget, &OsciWidget::samplesReceived);
+
+    for (const auto &device : m_audioDevices)
+        m_ui.comboBoxDevices->addItem(device.deviceName());
+
+    for (const auto samplerate : { 44100, 48000, 96000, 192000 })
+        m_ui.comboBoxSamplerate->addItem(tr("%0").arg(samplerate), samplerate);
+
+    connect(m_ui.pushButtonToggle, &QAbstractButton::pressed, this, &MainWindow::toggle);
+
+    for (const auto framerate : {15, 30, 50, 60})
+        m_ui.comboBoxFps->addItem(tr("%0 FPS").arg(framerate), framerate);
+
+    m_ui.comboBoxFps->setCurrentIndex(m_ui.comboBoxFps->findData(m_ui.widget->framerate()));
+
+    connect(m_ui.comboBoxFps, &QComboBox::currentIndexChanged, this, [&combobox=*m_ui.comboBoxFps,&widget=*m_ui.widget](){
+        widget.setFramerate(combobox.currentData().toInt());
+    });
+
+    m_ui.spinBoxBlend->setValue(m_ui.widget->blend());
+
+    connect(m_ui.spinBoxBlend, qOverload<int>(&QSpinBox::valueChanged), m_ui.widget, &OsciWidget::setBlend);
+
+    auto buttonGroup = new QButtonGroup;
+    buttonGroup->setExclusive(true);
+    buttonGroup->addButton(m_ui.radioButtonScale50, 0);
+    buttonGroup->addButton(m_ui.radioButtonScale100, 1);
+    buttonGroup->addButton(m_ui.radioButtonScale200, 2);
+    buttonGroup->addButton(m_ui.radioButtonScale400, 3);
+
+    connect(buttonGroup, qOverload<int>(&QButtonGroup::buttonClicked), this, [&widget=*m_ui.widget](int index){
+        float factor;
+
+        switch (index)
+        {
+        case 0: factor = .5f; break;
+        case 1: factor = 1.f; break;
+        case 2: factor = 2.f; break;
+        case 3: factor = 4.f; break;
+        default: Q_UNREACHABLE();
+        }
+
+        widget.setFactor(factor);
+    });
+
+    toggle();
+}
+
+void MainWindow::toggle()
+{
+    if (m_input)
+    {
+        m_input = nullptr;
+        m_ui.comboBoxDevices->setEnabled(true);
+        m_ui.comboBoxSamplerate->setEnabled(true);
+        m_ui.pushButtonToggle->setText("▶");
+    }
+    else
+    {
+        QAudioFormat format;
+        format.setSampleRate(m_ui.comboBoxSamplerate->currentData().toInt());
+        format.setChannelCount(2);
+        format.setSampleSize(16);
+        format.setSampleType(QAudioFormat::SignedInt);
+        format.setCodec("audio/pcm");
+        format.setByteOrder(QAudioFormat::LittleEndian);
+
+        m_input = std::make_unique<QAudioInput>(m_audioDevices.at(m_ui.comboBoxDevices->currentIndex()), format);
+        m_input->start(&m_device);
+        m_input->setBufferSize(format.sampleRate()/60*sizeof(qint16)*2);
+        m_ui.comboBoxDevices->setEnabled(false);
+        m_ui.comboBoxSamplerate->setEnabled(false);
+        m_ui.pushButtonToggle->setText("▮▮");
+    }
+}
+
+MainWindow::~MainWindow() = default;