class GlobalApplication : public QApplication
{
    Q_OBJECT

public:
     GlobalApplication(int&argc,char **argv);
     ~GlobalApplication();

     bool notify(QObject*, QEvent *);

private slots:
    void onTimeOut(); //超時鎖屏槽函數(shù)

private:
    myLockWindow *m_myLockWindow; //鎖屏窗口
    QObject *m_currWinObj; //鼠標事件發(fā)生時的當前所在窗口

    QTimer *m_pTimer; //定時器
    QThread *m_pThread; //定時器線程
};

#include "globalapplication.h"

GlobalApplication::GlobalApplication(int &argc,char **argv):
QApplication(argc,argv)
{

    m_currWinObj = new QObject(); //初始化鼠標事件發(fā)生時的當前所在窗口

    //初始化定時器線程和定時器
    m_pThread = new QThread(this);
    m_pTimer = new QTimer();
    m_pTimer->moveToThread(m_pThread);
    m_pTimer->setInterval(4000);
    connect(m_pThread, SIGNAL(started()), m_pTimer, SLOT(start()));
    connect(m_pTimer, SIGNAL(timeout()),this,SLOT(onTimeOut()));
    //開啟線程，調(diào)用定時器的start()
    m_pThread->start();

    m_myLockWindow = new myLockWindow(); //初始化鎖屏窗口
    m_myLockWindow->m_unlockFlag = true; //初始化解除鎖屏成功標志
}

GlobalApplication::~GlobalApplication()
{
    //徹底結(jié)束線程（單獨的一個quit()無法徹底結(jié)束進程）
    m_pThread->requestInterruption();
    m_pThread->quit();
    m_pThread->wait();
}

bool GlobalApplication::notify(QObject *obj, QEvent *e)
{
    //因為鼠標點擊或滑動到任何窗口部件都會進入該函數(shù)，所以根據(jù)objectName()過濾窗口部件
    if(obj->objectName().right(1) == "W") //cleanW mainW
    {
        //工控機是觸摸屏，觸摸屏幕和滑動屏幕都會點擊屏幕，所以這里只檢測鼠標點擊事件
        if(e->type() == QEvent::MouseButtonPress) //不區(qū)分左右鍵按下了
        {
            //qDebug() << "objName:" << obj->objectName();
            //qDebug()<<"press stop";
            m_pThread->quit(); //線程結(jié)束后，則在此線程的定時器會自動停止計時
        }
        else if(e->type() == QEvent::MouseButtonRelease)
        {
            //qDebug()<<"release start";
            m_pThread->start(); //線程開始，會發(fā)送started()信號，啟動定時器的start()槽函數(shù)
        }

        m_currWinObj = obj; //獲得鼠標事件發(fā)生時的當前所在窗口
    }

    return QApplication::notify(obj,e);
}

//超時鎖屏槽函數(shù)
void GlobalApplication::onTimeOut()
{
    //m_unlockFlag為false,表示鎖屏窗口未關(guān)閉，則即使再超時也不會再顯示鎖屏窗口
    if(m_myLockWindow->m_unlockFlag == true) //當密碼輸入正確后，關(guān)閉鎖屏窗口，則會將m_unlockFlag設置為true
    {
        qDebug()<<"鎖屏";
        //創(chuàng)建鎖屏窗口對象，并顯示該窗口
        m_myLockWindow = new myLockWindow();
        m_myLockWindow->show();
        qDebug()<<"創(chuàng)建鎖屏窗口對象，并顯示該窗口";

        //這行代碼要放在最后，因為在構(gòu)建對象時，會自動設置m_unlockFlag，所以在構(gòu)建后要復位m_unlockFlag
        m_myLockWindow->m_unlockFlag = false;
    }
    else
    {
        qDebug()<<"重復鎖屏";
    }
}

int main(int argc, char *argv[])
{
    GlobalApplication a(argc, argv);

    QDesktopWidget *desktopWidget = QApplication::desktop();
    QRect screenRect = desktopWidget->screenGeometry();
    qDebug()<<screenRect.width();
    qDebug()<<screenRect.height();

    //獲取計算機名稱
    QString localHostName = QHostInfo::localHostName();
    qDebug() << "計算機名：" << localHostName;

    QPixmap pixmap(":/HeadImage.png"); // 裝載圖片
    QSplashScreen splash(pixmap); // 初始化圖片到QSplashScreen
    splash.show(); // 顯示圖片
    a.processEvents(); // 刷新事件循環(huán)

    Widget w;
    splash.finish(&w); // 完成后自動close

     w.show();

    return a.exec();
}