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    41 

    42 #include "settingsdialog.h"

    43 #include <QComboBox>

    44 #include <QDialogButtonBox>

    45 #include <QLabel>

    46 #include <QPushButton>

    47 #include <QVBoxLayout>

    48 #include <QCheckBox>

    49 #include <QSlider>

    50 #include <QSpinBox>

    51 

    52 SettingsDialog::SettingsDialog(

    53             const QList<QAudioDeviceInfo> &availableInputDevices,

    54             const QList<QAudioDeviceInfo> &availableOutputDevices,

    55             QWidget *parent)

    56     :   QDialog(parent)

    57     ,   m_windowFunction(DefaultWindowFunction)

    58     ,   m_inputDeviceComboBox(new QComboBox(this))

    59     ,   m_outputDeviceComboBox(new QComboBox(this))

    60     ,   m_windowFunctionComboBox(new QComboBox(this))

    61 {

    62     QVBoxLayout *dialogLayout = new QVBoxLayout(this);

    63 

    64     // Populate combo boxes

    65 

    66     QAudioDeviceInfo device;

    67     foreach (device, availableInputDevices)

    68         m_inputDeviceComboBox->addItem(device.deviceName(),

    69                                        qVariantFromValue(device));

    70     foreach (device, availableOutputDevices)

    71         m_outputDeviceComboBox->addItem(device.deviceName(),

    72                                        qVariantFromValue(device));

    73 

    74     m_windowFunctionComboBox->addItem(tr("None"), qVariantFromValue(int(NoWindow)));

    75     m_windowFunctionComboBox->addItem("Hann", qVariantFromValue(int(HannWindow)));

    76     m_windowFunctionComboBox->setCurrentIndex(m_windowFunction);

    77 

    78     // Initialize default devices

    79     if (!availableInputDevices.empty())

    80         m_inputDevice = availableInputDevices.front();

    81     if (!availableOutputDevices.empty())

    82         m_outputDevice = availableOutputDevices.front();

    83 

    84     // Add widgets to layout

    85 

    86     QScopedPointer<QHBoxLayout> inputDeviceLayout(new QHBoxLayout);

    87     QLabel *inputDeviceLabel = new QLabel(tr("Input device"), this);

    88     inputDeviceLayout->addWidget(inputDeviceLabel);

    89     inputDeviceLayout->addWidget(m_inputDeviceComboBox);

    90     dialogLayout->addLayout(inputDeviceLayout.data());

    91     inputDeviceLayout.take(); // ownership transferred to dialogLayout

    92 

    93     QScopedPointer<QHBoxLayout> outputDeviceLayout(new QHBoxLayout);

    94     QLabel *outputDeviceLabel = new QLabel(tr("Output device"), this);

    95     outputDeviceLayout->addWidget(outputDeviceLabel);

    96     outputDeviceLayout->addWidget(m_outputDeviceComboBox);

    97     dialogLayout->addLayout(outputDeviceLayout.data());

    98     outputDeviceLayout.take(); // ownership transferred to dialogLayout

    99 

   100     QScopedPointer<QHBoxLayout> windowFunctionLayout(new QHBoxLayout);

   101     QLabel *windowFunctionLabel = new QLabel(tr("Window function"), this);

   102     windowFunctionLayout->addWidget(windowFunctionLabel);

   103     windowFunctionLayout->addWidget(m_windowFunctionComboBox);

   104     dialogLayout->addLayout(windowFunctionLayout.data());

   105     windowFunctionLayout.take(); // ownership transferred to dialogLayout

   106 

   107     // Connect

   108     CHECKED_CONNECT(m_inputDeviceComboBox, SIGNAL(activated(int)),

   109                     this, SLOT(inputDeviceChanged(int)));

   110     CHECKED_CONNECT(m_outputDeviceComboBox, SIGNAL(activated(int)),

   111                     this, SLOT(outputDeviceChanged(int)));

   112     CHECKED_CONNECT(m_windowFunctionComboBox, SIGNAL(activated(int)),

   113                     this, SLOT(windowFunctionChanged(int)));

   114 

   115     // Add standard buttons to layout

   116     QDialogButtonBox *buttonBox = new QDialogButtonBox(this);

   117     buttonBox->setStandardButtons(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);

   118     dialogLayout->addWidget(buttonBox);

   119 

   120     // Connect standard buttons

   121     CHECKED_CONNECT(buttonBox->button(QDialogButtonBox::Ok), SIGNAL(clicked()),

   122                     this, SLOT(accept()));

   123     CHECKED_CONNECT(buttonBox->button(QDialogButtonBox::Cancel), SIGNAL(clicked()),

   124                     this, SLOT(reject()));

   125 

   126     setLayout(dialogLayout);

   127 }

   128 

   129 SettingsDialog::~SettingsDialog()

   130 {

   131 

   132 }

   133 

   134 void SettingsDialog::windowFunctionChanged(int index)

   135 {

   136     m_windowFunction = static_cast<WindowFunction>(

   137             m_windowFunctionComboBox->itemData(index).value<int>());

   138 }

   139 

   140 void SettingsDialog::inputDeviceChanged(int index)

   141 {

   142     m_inputDevice = m_inputDeviceComboBox->itemData(index).value<QAudioDeviceInfo>();

   143 }

   144 

   145 void SettingsDialog::outputDeviceChanged(int index)

   146 {

   147     m_outputDevice = m_outputDeviceComboBox->itemData(index).value<QAudioDeviceInfo>();

   148 }

   149