#include "sounddialog.h"
#include "ui_sounddialog.h"
#include <QDebug>


int SoundDialog::m_value = 0;

#include <QPainter>
SoundDialog::SoundDialog(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::SoundDialog)
{
    ui->setupUi(this);
    this->setWindowFlags(Qt::FramelessWindowHint);      //设置无边框
    setAttribute(Qt::WA_TranslucentBackground,true);    //设置透明
    ui->cancel_Btn->setVisible(false);

    this->setRange(0,100);
    soundController = new SoundController(this);

}

SoundDialog::~SoundDialog()
{
    delete ui;
   // if(m_player)  delete m_player;
  //  if(m_audioOutput) delete m_audioOutput;
}


void SoundDialog::setTitleAndUnit(QString title, QString unit)
{
    ui->title_Label->setText(title);
    //ui->unit_Label->setText(unit);
}

int SoundDialog::getValue()
{
    return m_value;
}

void SoundDialog::setValue(int value)
{
    ui->slider->setValue(value);
    ui->value_Label->setText(QString::number(value));
   // qDebug()<<"设置滑块和方块数字："<<value;
   // m_value = value;
    qDebug() << ui->slider->value();
}

void SoundDialog::setRange(int min, int max)
{
    ui->slider->setRange(min,max);
}

void SoundDialog::on_cancel_Btn_clicked()
{
    this->close();
}

void SoundDialog::on_slider_sliderMoved(int position)
{
    //qDebug() <<"mode的值:"<<position;
    ui->value_Label->setText(QString::number(position));
    SetSystemVolume(position);
}

void SoundDialog::on_confirm_Btn_clicked()
{
    m_value = ui->value_Label->text().toInt();
    if(m_value == 0)
        SetSystemVolume(-2);//设置禁音
    else
    {
        SetSystemVolume(-1); //取消禁音
        SetSystemVolume(m_value -1);
    }
    this->close();
}

void SoundDialog::on_minus_Btn_clicked()
{
    int value = ui->slider->value();
    --value;
    if(value < 0) return;
    ui->slider->setValue(value);
    ui->value_Label->setText(QString::number(value));
    SetSystemVolume(value);
 //   m_player->setVolume(value);

//    qDebug()<<m_value;
}

void SoundDialog::on_plus_Btn_clicked()
{
    int value = ui->slider->value();
    ++value;
    if(value > 100) return;
    ui->slider->setValue(value);
    ui->value_Label->setText(QString::number(value));
    SetSystemVolume(value);
  //  m_player->setVolume(value);

//    qDebug()<<m_value;
}

void SoundDialog::on_slider_valueChanged(int value)
{
    //ui->value_Label->setText(QString::number(value));
    //SetSystemVolume(value);
    //SetSystemVolume2(value);
    //soundController->setSystemVolume(value);

    //  m_player->setVolume(value);

    //qDebug()<<"m_value"<<m_value;
}

void SoundDialog::paintEvent(QPaintEvent *event)
{
    Q_UNUSED(event)
    QPainter painter(this);
    painter.fillRect(rect(),QColor(0,0,0,100));
}


void SoundDialog::changeEvent(QEvent* event)
{
    switch (event->type())
    {
    case QEvent::LanguageChange:
        ui->retranslateUi(this);
        break;
    default:
        QWidget::changeEvent(event);
        break;
    }
    qDebug()<<"m_value、当前音量"<<m_value<<GetCurrentVolume();

    m_value = (GetCurrentVolume()<=1)?m_value:GetCurrentVolume();

    this->setValue(m_value);

   // testFunction();
}


void SoundDialog::SetSystemVolume(int value)
{

    HRESULT hr;
    IMMDeviceEnumerator* pDeviceEnumerator=0;
    IMMDevice* pDevice=0;
    IAudioEndpointVolume* pAudioEndpointVolume=0;
    IAudioClient* pAudioClient=0;
    hr = CoCreateInstance(__uuidof(MMDeviceEnumerator),NULL,CLSCTX_ALL,__uuidof(IMMDeviceEnumerator),(void**)&pDeviceEnumerator);

    hr = pDeviceEnumerator->GetDefaultAudioEndpoint(eRender,eMultimedia,&pDevice);

    hr = pDevice->Activate(__uuidof(IAudioEndpointVolume),CLSCTX_ALL,NULL,(void**)&pAudioEndpointVolume);

    hr = pDevice->Activate(__uuidof(IAudioClient),CLSCTX_ALL,NULL,(void**)&pAudioClient);

    if(value == -1)
        pAudioEndpointVolume->SetMute(FALSE,NULL);    /*取消静音*/
    else if(value == -2)
        pAudioEndpointVolume->SetMute(TRUE,NULL);   /*静音*/
    else{
        value = (value > 100) ? 100 : (value < 0) ? 0: value;  /*将音量限制在0-100内*/
        float fVolume;
        fVolume = value/100.0f;
        hr = pAudioEndpointVolume->SetMasterVolumeLevelScalar(fVolume,&GUID_NULL);
    }
    pAudioClient->Release();
    pAudioEndpointVolume->Release();
    pDevice->Release();
    pDeviceEnumerator->Release();
}

int SoundDialog::GetCurrentVolume()
{

    HRESULT hr;
    IMMDeviceEnumerator* pDeviceEnumerator=0;
    IMMDevice* pDevice=0;
    IAudioEndpointVolume* pAudioEndpointVolume=0;
    IAudioClient* pAudioClient=0;

    hr = CoCreateInstance(__uuidof(MMDeviceEnumerator),NULL,CLSCTX_ALL,__uuidof(IMMDeviceEnumerator),(void**)&pDeviceEnumerator);

    hr = pDeviceEnumerator->GetDefaultAudioEndpoint(eRender,eMultimedia,&pDevice);

    hr = pDevice->Activate(__uuidof(IAudioEndpointVolume),CLSCTX_ALL,NULL,(void**)&pAudioEndpointVolume);

    hr = pDevice->Activate(__uuidof(IAudioClient),CLSCTX_ALL,NULL,(void**)&pAudioClient);

    float fVolume;

    hr = pAudioEndpointVolume->GetMasterVolumeLevelScalar(&fVolume);


    pAudioClient->Release();
    pAudioEndpointVolume->Release();
    pDevice->Release();
    pDeviceEnumerator->Release();

    int  intVolume = fVolume*100+1;
    if(intVolume>100)
    {
        intVolume =100;
    }
    return intVolume;
}


int SoundDialog::GetSystemVolume2() {
    HRESULT hr;
    int volume = 0;
    IMMDeviceEnumerator *deviceEnumerator = NULL;
    IMMDevice *device = NULL;
    IAudioEndpointVolume *endpointVolume = NULL;

    // Initialize COM.
    hr = CoInitialize(NULL);
    if (FAILED(hr)) {
        qDebug() << "Failed to initialize COM";
        return -1;
    }

    // Create the device enumerator.
    hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL, __uuidof(IMMDeviceEnumerator), (void**)&deviceEnumerator);
    if (FAILED(hr)) {
        qDebug() << "Failed to create the device enumerator";
        CoUninitialize();
        return -1;
    }

    // Get the default audio endpoint.
    hr = deviceEnumerator->GetDefaultAudioEndpoint(eRender, eMultimedia, &device);
    if (FAILED(hr)) {
        qDebug() << "Failed to get the default audio endpoint";
        deviceEnumerator->Release();
        CoUninitialize();
        return -1;
    }

    // Activate the endpoint volume interface.
    hr = device->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL, (void**)&endpointVolume);
    if (FAILED(hr)) {
        qDebug() << "Failed to activate the endpoint volume interface";
        device->Release();
        deviceEnumerator->Release();
        CoUninitialize();
        return -1;
    }

    // Get the current volume.
    float fVolume;
    hr = endpointVolume->GetMasterVolumeLevelScalar(&fVolume);
    if (FAILED(hr)) {
        qDebug() << "Failed to get the current volume";
        endpointVolume->Release();
        device->Release();
        deviceEnumerator->Release();
        CoUninitialize();
        return -1;
    }

    // Convert to an integer percentage.
    volume = static_cast<int>(fVolume * 100);

    // Clean up.
    endpointVolume->Release();
    device->Release();
    deviceEnumerator->Release();
    CoUninitialize();

    return volume;
}

bool SoundDialog::SetSystemVolume2(int volume) {
    HRESULT hr;
    IMMDeviceEnumerator *deviceEnumerator = NULL;
    IMMDevice *device = NULL;
    IAudioEndpointVolume *endpointVolume = NULL;

    // Initialize COM.
    hr = CoInitialize(NULL);
    if (FAILED(hr)) {
        qDebug() << "Failed to initialize COM";
        return false;
    }

    // Create the device enumerator.
    hr = CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_ALL, __uuidof(IMMDeviceEnumerator), (void**)&deviceEnumerator);
    if (FAILED(hr)) {
        qDebug() << "Failed to create the device enumerator";
        CoUninitialize();
        return false;
    }

    // Get the default audio endpoint.
    hr = deviceEnumerator->GetDefaultAudioEndpoint(eRender, eMultimedia, &device);
    if (FAILED(hr)) {
        qDebug() << "Failed to get the default audio endpoint";
        deviceEnumerator->Release();
        CoUninitialize();
        return false;
    }

    // Activate the endpoint volume interface.
    hr = device->Activate(__uuidof(IAudioEndpointVolume), CLSCTX_ALL, NULL, (void**)&endpointVolume);
    if (FAILED(hr)) {
        qDebug() << "Failed to activate the endpoint volume interface";
        device->Release();
        deviceEnumerator->Release();
        CoUninitialize();
        return false;
    }

    // Set the master volume level scalar.
    float fVolume = static_cast<float>(volume) / 100.0f;
    hr = endpointVolume->SetMasterVolumeLevelScalar(fVolume, NULL);
    if (FAILED(hr)) {
        qDebug() << "Failed to set the volume";
        endpointVolume->Release();
        device->Release();
        deviceEnumerator->Release();
        CoUninitialize();
        return false;
    }

    // Clean up.
    endpointVolume->Release();
    device->Release();
    deviceEnumerator->Release();
    CoUninitialize();

    return true;
}