CodeRepository/Samples/Sample.MultiProcess/mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QFile>
#include <QMessageBox>
#include <QFileDialog>
#include <QString>
#include <QDebug>

#include "commonhelper.h"
#include "frameless_helper.h"

#include <mmsystem.h>
#pragma comment(lib, "winmm")

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    //
    m_bMousePressed = false;

    //
    m_bWindowMenu = false;

    //
    m_bThreadRunning_CaptureDeviceData = false;
    m_ptrThread_CaptureDeviceData = nullptr;

    // 初始化界面
    InitStyle();

    //
    this->setFixedWidth(800);
    ui->wgtTitleBar->setFixedWidth(790);

    // 加载信号槽函数连接
    Connect();

    // 加载多进程
    LoadMultiProcess();
}

MainWindow::~MainWindow()
{
    //
    StopThread_DealDeviceData();

    Disconnect();

    UnloadMultiProcess();

    delete ui;
}

void    MainWindow::Connect()
{
    // 通用
    connect(ui->m_pushButton_MinMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    connect(ui->m_pushButton_CloseMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);

    // 视频采集

    connect(&m_varTimer, &QTimer::timeout, this, &MainWindow::OnTimer);
    m_varTimer.setTimerType(Qt::PreciseTimer);
    m_varTimer.start(40);
}

void    MainWindow::Disconnect()
{
    // 通用
    disconnect(ui->m_pushButton_MinMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);
    disconnect(ui->m_pushButton_CloseMenu, &QPushButton::clicked, this, &MainWindow::OnButtonClicked);

    m_varTimer.stop();
    disconnect(&m_varTimer, &QTimer::timeout, this, &MainWindow::OnTimer);
}

bool    MainWindow::LoadMultiProcess()
{
    QString strAppPath = QCoreApplication::applicationDirPath();

    // process01
    QString strCmd01 = strAppPath + "/Process01.exe";

    STARTUPINFO si_process01 = { sizeof(STARTUPINFO) };
    PROCESS_INFORMATION pi_process01 = {0};

    si_process01.dwFlags = STARTF_USESHOWWINDOW;
    si_process01.wShowWindow = true;

    bool bRet01 = CreateProcess(
        NULL,
        (LPWSTR)strCmd01.toStdWString().c_str(),
        NULL,
        NULL,
        FALSE,
        CREATE_NEW_CONSOLE,
        NULL,
        NULL, &si_process01, &pi_process01);

    WaitForInputIdle((HANDLE)pi_process01.dwProcessId, INFINITE);

    QThread::msleep(2000);

    //
    WId nWinID_01 = (WId)FindWindow(L"Qt5QWindowIcon", L"MainWindow_Process01");

    QWindow* pWindow_01 = QWindow::fromWinId(nWinID_01);
    pWindow_01->setFlags(pWindow_01->flags() | Qt::CustomizeWindowHint | Qt::WindowTitleHint); //

    QWidget* pWidget_01;
    pWidget_01 = QWidget::createWindowContainer(pWindow_01, this, Qt::Widget);

    ui->m_verticalLayout_Process01->addWidget(pWidget_01);

    // process02
    QString strCmd02 = strAppPath + "/Process02.exe";

    STARTUPINFO si_process02 = { sizeof(STARTUPINFO) };
    PROCESS_INFORMATION pi_process02 = {0};

    si_process02.dwFlags = STARTF_USESHOWWINDOW;
    si_process02.wShowWindow = true;

    bool bRet02 = CreateProcess(
        NULL,
        (LPWSTR)strCmd02.toStdWString().c_str(),
        NULL,
        NULL,
        FALSE,
        CREATE_NEW_CONSOLE,
        NULL,
        NULL, &si_process02, &pi_process02);

    QThread::msleep(2000);

    WaitForInputIdle((HANDLE)pi_process02.dwProcessId, INFINITE);

    //
    WId nWinID_02 = (WId)FindWindow(L"Qt5QWindowIcon", L"MainWindow_Process02");

    QWindow* pWindow_02 = QWindow::fromWinId(nWinID_02);
    pWindow_02->setFlags(pWindow_02->flags() | Qt::CustomizeWindowHint | Qt::WindowTitleHint); //

    QWidget* pWidget_02;
    pWidget_02 = QWidget::createWindowContainer(pWindow_02, this, Qt::Widget);

    ui->m_verticalLayout_Process02->addWidget(pWidget_02);

    return true;
}

void    MainWindow::UnloadMultiProcess()
{
    system("taskkill /f /t /im Process01.exe");
    system("taskkill /f /t /im Process02.exe");
}

void    MainWindow::OnButtonClicked()
{
    // 最小化
    if(sender() == ui->m_pushButton_MinMenu)
    {
        this->showMinimized();
    }

    // 退出程序
    if(sender() == ui->m_pushButton_CloseMenu)
    {
        qApp->exit();
    }    
}

void    MainWindow::OnComboxIndexChanged(int nIndex)
{
}

void MainWindow::InitStyle()
{
    m_bMousePressed = false;

    //安装事件监听器,让标题栏识别鼠标双击
    ui->lblTitle->installEventFilter(this);

    this->setWindowFlags(/*Qt::FramelessWindowHint
                                              | Qt::WindowSystemMenuHint
                                              |*/ Qt::WindowMinimizeButtonHint);

    FramelessHelper *pHelper = new FramelessHelper(this);
    pHelper->activateOn(this);  //激活当前窗体
    pHelper->setTitleHeight(ui->wgtTitleBar->height());  //设置窗体的标题栏高度

    CommonHelper::SetStyle("blue");//"blue"//"dark"
}

bool MainWindow::eventFilter(QObject *obj, QEvent *event)
{
    //if (ui->lblTitle == obj)
    {
        if (event->type() == QEvent::MouseButtonPress)
        {
            QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);

            if (mouseEvent->button() == Qt::LeftButton)
            {
                m_bMousePressed = true;
                m_ptMouse = mouseEvent->globalPos() - pos();
                mouseEvent->accept();
            }
            return true;
        }

        else if (event->type() == QEvent::MouseMove)
        {
            QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);

            if (m_bMousePressed && this->windowState() != Qt::WindowMaximized)
            {
                if (mouseEvent->globalY() <= qApp->desktop()->availableGeometry().bottom())
                {
                    move(mouseEvent->globalPos() - m_ptMouse);
                    mouseEvent->accept();
                }
                else
                {
                    qApp->desktop()->cursor().setPos(
                                qApp->desktop()->cursor().pos().x(),
                                qApp->desktop()->availableGeometry().bottom()
                                );
                }
            }
            return true;
        }

        else if (event->type() == QEvent::MouseButtonRelease)
        {
            QMouseEvent *mouseEvent = dynamic_cast<QMouseEvent*>(event);

            if (mouseEvent->button() == Qt::LeftButton)
            {
                m_bMousePressed = false;
                mouseEvent->accept();
            }
            return true;
        }
    }
    return QMainWindow::eventFilter(obj, event);
}

void    MainWindow::OnTimer()
{
}

void    MainWindow::ThreadEntry(ThreadRunFunPtr pRunFun, void* pOwner)
{
    MainWindow* pThis = reinterpret_cast<MainWindow*>(pOwner);

    if (NULL == pThis)
    {
        return;
    }

    (pThis->*pRunFun)();
}

void	MainWindow::ThreadFun_CaptureDeviceData()
{
    timeBeginPeriod(1);

    byte* pReadData = new byte[2688*1024+4096];

    std::chrono::system_clock::time_point tm2_2 = std::chrono::system_clock::now();

    int nTimeOutCount = 0;

    while(m_bThreadRunning_CaptureDeviceData)
    {
        int nRes = 0;        
    }

    timeEndPeriod(1);
}

bool    MainWindow::StartThread_DealDeviceData()
{
    StopThread_DealDeviceData();

    //
    m_bThreadRunning_CaptureDeviceData = true;
    m_ptrThread_CaptureDeviceData = new std::thread(std::bind(&MainWindow::ThreadEntry, &MainWindow::ThreadFun_CaptureDeviceData, (void*)this));

    return true;
}

void    MainWindow::StopThread_DealDeviceData()
{
    //
    if(m_bThreadRunning_CaptureDeviceData)
    {
        m_bThreadRunning_CaptureDeviceData = false;

        if(nullptr != m_ptrThread_CaptureDeviceData)
        {
            m_ptrThread_CaptureDeviceData->join();

            delete m_ptrThread_CaptureDeviceData;
            m_ptrThread_CaptureDeviceData = nullptr;
        }
    }
}