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#include "settingsdialog.h"

#include <QComboBox>

#include <QDialogButtonBox>

#include <QLabel>

#include <QPushButton>

#include <QVBoxLayout>

#include <QCheckBox>

#include <QSlider>

#include <QSpinBox>

SettingsDialog::SettingsDialog(

            const QList<QAudioDeviceInfo> &availableInputDevices,

            const QList<QAudioDeviceInfo> &availableOutputDevices,

            QWidget *parent)

    :   QDialog(parent)

    ,   m_windowFunction(DefaultWindowFunction)

    ,   m_inputDeviceComboBox(new QComboBox(this))

    ,   m_outputDeviceComboBox(new QComboBox(this))

    ,   m_windowFunctionComboBox(new QComboBox(this))

{

    QVBoxLayout *dialogLayout = new QVBoxLayout(this);

    // Populate combo boxes

    QAudioDeviceInfo device;

    foreach (device, availableInputDevices)

        m_inputDeviceComboBox->addItem(device.deviceName(),

                                       qVariantFromValue(device));

    foreach (device, availableOutputDevices)

        m_outputDeviceComboBox->addItem(device.deviceName(),

                                       qVariantFromValue(device));

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

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

    m_windowFunctionComboBox->setCurrentIndex(m_windowFunction);

    // Initialize default devices

    if (!availableInputDevices.empty())

        m_inputDevice = availableInputDevices.front();

    if (!availableOutputDevices.empty())

        m_outputDevice = availableOutputDevices.front();

    // Add widgets to layout

    QScopedPointer<QHBoxLayout> inputDeviceLayout(new QHBoxLayout);

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

    inputDeviceLayout->addWidget(inputDeviceLabel);

    inputDeviceLayout->addWidget(m_inputDeviceComboBox);

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

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

    QScopedPointer<QHBoxLayout> outputDeviceLayout(new QHBoxLayout);

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

    outputDeviceLayout->addWidget(outputDeviceLabel);

    outputDeviceLayout->addWidget(m_outputDeviceComboBox);

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

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

    QScopedPointer<QHBoxLayout> windowFunctionLayout(new QHBoxLayout);

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

    windowFunctionLayout->addWidget(windowFunctionLabel);

    windowFunctionLayout->addWidget(m_windowFunctionComboBox);

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

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

    // Connect

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

                    this, SLOT(inputDeviceChanged(int)));

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

                    this, SLOT(outputDeviceChanged(int)));

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

                    this, SLOT(windowFunctionChanged(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);

}

SettingsDialog::~SettingsDialog()

{

}

void SettingsDialog::windowFunctionChanged(int index)

{

    m_windowFunction = static_cast<WindowFunction>(

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

}

void SettingsDialog::inputDeviceChanged(int index)

{

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

}

void SettingsDialog::outputDeviceChanged(int index)

{

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

}