qwvolumecontrol/volmainwindow.cpp at master · kythyria/qwvolumecontrol · GitHub

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#include "volmainwindow.h"

#include <QTabWidget>
#include <QScrollArea>
#include <stdlib.h>
#include <mmdeviceapi.h>

#include "devicemixerbankwidget.h"
#include "devicecollectionmodel.h"
#include "util.h"
#include "comstuff.h"

const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);

COM_SMARTPTR(IMMDeviceCollection);
COM_SMARTPTR(IMMDeviceEnumerator);
//_COM_SMARTPTR_TYPEDEF(IMMDeviceCollection, __uuidof(IMMDeviceCollection));

class VolMainWindow_internal {
public:
    VolMainWindow *self;
    QTabWidget *tabs;
    DeviceMixerBankWidget *playbackPage;
    DeviceMixerBankWidget *recordingPage;
    QScrollArea *deviceDetailPage;
    QWidget *optionPage;

    IMMDeviceEnumeratorPtr devenum;

    DeviceCollectionModel *playbackDevices;
    DeviceCollectionModel *recordingDevices;

    VolMainWindow_internal(VolMainWindow *window);
};

VolMainWindow_internal::VolMainWindow_internal(VolMainWindow *window) {
    deviceDetailPage = new QScrollArea();
    optionPage       = new QWidget();

    tabs = new QTabWidget();
    tabs->addTab(deviceDetailPage, "Device Details");
    tabs->addTab(optionPage, "Options");

    window->setCentralWidget(tabs);
}

VolMainWindow::VolMainWindow(QWidget *parent) : QMainWindow(parent) {
    this->resize(580,340);

    stuff = std::make_unique<VolMainWindow_internal>(this);

    HRESULT hr = CoCreateInstance(
           CLSID_MMDeviceEnumerator, NULL,
           CLSCTX_ALL, IID_IMMDeviceEnumerator,
           (void**)&stuff->devenum);

    assertHR(hr, "Couldn't create IMMDeviceEnumerator (%0)");

    IMMDeviceCollectionPtr col;

    stuff->playbackDevices = new DeviceCollectionModel(stuff->devenum, eRender, DEVICE_STATE_ACTIVE);
    stuff->playbackPage = new DeviceMixerBankWidget(stuff->playbackDevices);
    stuff->tabs->insertTab(0, stuff->playbackPage, "Playback");

    stuff->recordingDevices = new DeviceCollectionModel(stuff->devenum, eCapture, DEVICE_STATE_ACTIVE);
    stuff->recordingPage = new DeviceMixerBankWidget(stuff->recordingDevices);
    stuff->tabs->insertTab(1,stuff->recordingPage, "Recording");

    stuff->tabs->setCurrentIndex(0);
}

VolMainWindow::~VolMainWindow() { }