C++ QDesktopWidget::width方法代码示例

QRect ChatWindow::defaultGeometry() const
{
    QSize size(0, 400);
    int x, y;
    x = pos().x();
    y = pos().y();
    if (m_chatWidget->chat().contacts().count() > 1)
        size.setWidth(550);
    else
        size.setWidth(400);

    QDesktopWidget *desk = qApp->desktop();

    if ((size.width() + x) > desk->width())
        x = desk->width() - size.width() - 50;
    if ((size.height() + y) > desk->height())
        y = desk->height() - size.height() - 50;

    if (x < 50)
        x = 50;
    if (y < 50)
        y = 50;

    return QRect(QPoint(x, y), size);
}

MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow),
        proxy(new QSortFilterProxyModel(parent)),
        model(new QStandardItemModel(0, 3, parent))
{
    // Set the window style.
    Qt::WindowFlags flags = windowFlags();
    setWindowFlags(flags | Qt::WindowStaysOnTopHint | Qt::ToolTip);

    // Center window.
    QDesktopWidget *desktop = QApplication::desktop();
    int width = desktop->width() * 0.6;
    int height = desktop->height() * 0.6;
    setFixedSize(width, height);
    move((desktop->width() - width) / 2, (desktop->height() - height) / 2);

    // Set up system tray.
    trayIconMenu = new QMenu(this);
    aboutAction = new QAction(tr("&About"), this);
    quitAction = new QAction(tr("&Quit"), this);
    connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutMain()));
    connect(quitAction, SIGNAL(triggered()), this, SLOT(quitMain()));
    trayIconMenu->addAction(aboutAction);
    trayIconMenu->addAction(quitAction);
    trayIcon = new QSystemTrayIcon(this);
    trayIcon->setContextMenu(trayIconMenu);
    trayIcon->setToolTip(QString("QuickWin"));
    trayIcon->setIcon(QIcon("icon.png"));
    trayIcon->show();

    // Set up UI items.
    ui->setupUi(this);
    proxy->setSourceModel(model);
    ui->winView->setModel(proxy);
    proxy->setFilterKeyColumn(1);
    ui->winView->setSortingEnabled(true);
    ui->winView->sortByColumn(0, Qt::AscendingOrder);
    ui->winView->setEditTriggers(QAbstractItemView::NoEditTriggers);
    model->setHeaderData(0, Qt::Horizontal, QObject::tr("Number"));
    model->setHeaderData(1, Qt::Horizontal, QObject::tr("Title"));
    model->setHeaderData(2, Qt::Horizontal, QObject::tr("Executable"));
    ui->winView->header()->resizeSection(0, width * 0.08);
    ui->winView->header()->resizeSection(1, width * 0.7);

    connect(ui->cmdText, SIGNAL(returnPressed()),
            this,SLOT(onTextEnter()));
    connect(ui->cmdText, SIGNAL(textChanged(const QString &)),
            this, SLOT(onTextChanged(const QString &)));
    connect(ui->winView, SIGNAL(activated(QModelIndex)),
            this, SLOT(onWitemActivate(QModelIndex)));

    // Register system-wide hotkey.
    HWND hwnd = (HWND)this->winId();
    RegisterHotKey(hwnd, 100, MOD_CONTROL | MOD_ALT, VK_SPACE);

    updateWinList();
}

/**
 * @brief _centerWindow Centers the mainWindow on the screen.
 * @param window The window to be centered.
 */
void centerWindow(MainWindow & window)
{
	const qreal WIDTH_FRAC = 0.7;
	const qreal HEIGHT_FRAC = 0.9;

	QDesktopWidget dw;
	int x = dw.width() * WIDTH_FRAC;
	int y = dw.height() * HEIGHT_FRAC;
	window.resize(x, y);
	x = dw.width() * (1.0 - WIDTH_FRAC) / 2.0;
	y = dw.height() * (1.0 - HEIGHT_FRAC) / 2.0;
	window.move(x,y);
}

void login::okpressed()
{
		int WIDTH = 1280;
	    int HEIGHT = 1024;

	    int screenWidth;
	    int screenHeight;

	    int x, y;

	if(ui.userlineEdit->text()=="admin" && ui.passlineEdit_2->text()=="789")
	{
		QDesktopWidget *desktop = QApplication::desktop();

	    screenWidth = desktop->width();
	    screenHeight = desktop->height();

	    x = (screenWidth - WIDTH) / 2;
	    y = (screenHeight - HEIGHT) / 2;

		mainWindow *m= new mainWindow(this,0);
		this->hide();
		m->show();
		m->move(x,y);
		return;
	}

	if(ui.userlineEdit->text()=="user" && ui.passlineEdit_2->text()=="123")
	{
		QDesktopWidget *desktop = QApplication::desktop();

		screenWidth = desktop->width();
		screenHeight = desktop->height();

	    x = (screenWidth - WIDTH) / 2;
	    y = (screenHeight - HEIGHT) / 2;

		mainWindow *m= new mainWindow(0,1);

		m->show();
		this->hide();
		m->move(x,y);
		return;

	}
	QMessageBox::critical(this, qApp->trUtf8("Προσοχή"), qApp->trUtf8(
					"Λάθος στοιχεία χρήστη "));
	//return;

}

//Main
int main(int argc, char *argv[])
{
	
  QApplication app(argc, argv);
  //variables
  int posx, posy;
  int screenW;
  int screenH;
  int WIDTH = 500;//monitor size width
  int HEIGHT = 500;//monitor size height
  QDesktopWidget *desktop = QApplication::desktop();
  //get size of monitor
  screenW = desktop->width();
  screenH = desktop->height(); 
  posx = (screenW - WIDTH) / 2;
  posy = (screenH - HEIGHT) / 2;   
    
  collision window;
  window.setGeometry(posx, posy, WIDTH, HEIGHT);
  window.setFixedSize(WIDTH, HEIGHT);
  window.setWindowTitle("HUNT");
   // window.setStyleSheet("background-image:Image/background.png");
  window.show();

 

  return app.exec();
}

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

    int screenWidth, width;
    int screenHeight, height;
    int x, y;
    QSize windowSize;

    screenWidth = desktop->width(); // get width of screen
    screenHeight = desktop->height(); // get height of screen

    windowSize = size(); // size of our application window
    width = windowSize.width();
    height = windowSize.height();

    // little computations
    x = (screenWidth - width) / 2;
    y = (screenHeight - height) / 2;
    y -= 50;

    // move window to desired coordinates
    move ( x, y );


}

QPlayer::QPlayer(QTimer *timer1, QTimer *timer2, QFile *file1)
{
	playTimer = timer1;
	refreshTimer = timer2;

	file = file1;
	QDesktopWidget *desktop = new QDesktopWidget;

	setWindowTitle("QPlayer");
	setGeometry(desktop->width()-100, desktop->height()-60, 220, 25);

	xSize = 130;
	ySize = 30;
	busy = false;

	slider = new QSlider(Qt::Horizontal,this);
	QPushButton *playButton = new QPushButton(QIcon(":/icons/amarok_play.png"),"");
	QPushButton *pauseButton = new QPushButton(QIcon(":/icons/amarok_pause.png"),"");
	playButton->setFlat(true);
	pauseButton->setFlat(true);
	QHBoxLayout *layout = new QHBoxLayout;
	layout->addWidget(playButton);
	layout->addWidget(pauseButton);
	layout->addWidget(slider);

	connect(playButton, SIGNAL(released()), this, SLOT(play() ) );
	connect(pauseButton,SIGNAL(released()), this, SLOT(pause()) );
	connect(slider,SIGNAL(sliderReleased()), this, SLOT(seekFile()) );
	connect(slider,SIGNAL(sliderPressed()), this, SLOT(sliderPress()) );

	setLayout(layout);
	show();
}

/*!
 * \brief EnlargedFrameWindow::displayFrame displays a frame with the given filename in a pop up window.
 *
 * \param fileName the name of the file (as a precondition the file must be located in the tmp directory).
 */
void EnlargedFrameWindow::displayFrame(QString fileName)
{
    _scene = new QGraphicsScene();
#ifdef WIN32
    pix->load("tmp\\" + fileName);
    if(pix->isNull())
    {
        pix->load("tmp/" + fileName);
    }
#else
    pix->load("tmp/" + fileName);
#endif

    // Set up the image
    _scene->addPixmap(*pix);
    _scene->setSceneRect( pix->rect() );
    ui->frameView->setScene(_scene);
    ui->frameView->setGeometry(0,0, _scene->width(), _scene->height());
    this->setGeometry( this->x(), this->y(), ui->frameView->width(), ui->frameView->height());

    // Move the frame to the center of the screen.
    QDesktopWidget *desktop = QApplication::desktop();
    int x, y;
    x = (desktop->width() - this->width()) / 2;
    y = (desktop->height() - this->height()) / 2;
    y -= 50;
    this->move(x, y);

    // Display the frame.
    ui->frameView->show();
}

void kWarningWindow::kShow(int type){

	//加载警告种类
	//0 ok
	//1 error
	if (type == 0){
		kMusicData::successSound();
		windowImage.load("Resources\\image\\warning");
	}
	else if (type == 1){
		kMusicData::errorSound();
		windowImage.load("Resources\\image\\warning2");
	}

	//透明度
	setWindowOpacity(1.0);

	//动画
	timeid = startTimer(40);


	update();

	//移动到中间
	QDesktopWidget* desktop = QApplication::desktop();
	move((desktop->width() - 580) / 2, (desktop->height() - 270) / 2);

	show();
}

void Forecast::on_pushButton_clicked()
{
    QString path;
    QDir dir;
    path=dir.currentPath();

    //Show file select Dialog.
    if(select_window!=NULL) {
        delete select_window;
    }
    select_window = new SelectFile();
    select_window->init(SWWYL);

    QDesktopWidget* desktop = QApplication::desktop();
    int x,y;
    x=(desktop->width() - select_window->width())/2;
    y=(desktop->height() - select_window->height())/2;
    select_window->setGeometry(x,y,1,429);
//    select_window->setModal(true);
    select_window->show();

    // MPlayer 播放视频
//    QProcess::execute("C:\\MPlayer_Windows\\mplayer\\MPlayer.exe "+path+"\\yubao\\wenyanliu\\nwp_3dvar.mp4");
//    QProcess::execute("C:\\wmplayer\\wmplayer.exe "+path+"\\yubao\\wenyanliu\\nwp_3dvar.mp4");


}

void Forecast::on_pushButton_hyf_clicked()
{
//    QString path;
//    QDir dir;
//    path=dir.currentPath();
//    QDir::setCurrent(path+"\\yubao\\hyfm");

//    QProcess::startDetached("frontdetect_example.exe");
//    QDir::setCurrent(path);

    // Show file select Dialog.
    if(select_window!=NULL) {
        delete select_window;
    }
    select_window = new SelectFile();
    select_window->init(HYFM);

    QDesktopWidget* desktop = QApplication::desktop();
    int x,y;
    x=(desktop->width() - select_window->width())/2;
    y=(desktop->height() - select_window->height())/2;
    select_window->setGeometry(x,y,1,429);
//    select_window->setModal(true) ;
    select_window->show();
}

// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void DevHelper::setupGui()
{
  // Allow internal widgets to update the status bar
  connect(filterMaker, SIGNAL(updateStatusBar(QString)), this, SLOT(updateStatusMessage(QString)));
  connect(pluginMaker, SIGNAL(updateStatusBar(QString)), this, SLOT(updateStatusMessage(QString)));

  //Set window to open at the center of the screen
  QDesktopWidget* desktop = QApplication::desktop();

  int screenWidth, width;
  int screenHeight, height;
  int x, y;
  QSize windowSize;

  screenWidth = desktop->width(); // get width of screen
  screenHeight = desktop->height(); // get height of screen

  windowSize = size(); // size of application window
  width = windowSize.width();
  height = windowSize.height();

  x = (screenWidth - width) / 2;
  y = (screenHeight - height) / 2;
  y -= 50;

  // move window to desired coordinates
  move(x, y);
}

void CSplashDlg::showEvent(QShowEvent* event)
{
	QDesktopWidget* desktop = QApplication::desktop();
	move((desktop->width() - this->width())/2, (desktop->height() - this->height())/2);

	return QWidget::showEvent(event);
}

//播放状态改变
void VideoPlayer::playStateChanged(QMediaPlayer::State state)
{
    if (state == QMediaPlayer::StoppedState)
    {
        QDesktopWidget desktop;
        this->setGeometry((desktop.width()-WIDTH)/2, (desktop.height()-HEIGHT)/2, WIDTH, HEIGHT);
        lab_background->setStyleSheet("border-image: url(:/Images/videoPlayerBg.png);");
        videoWidget->hide();

        videoContral->playStop();

        tbn_openVideoFile->show();

        //停止保持屏幕常亮
        timerKeepAwake->stop();
        //鼠标恢复
        hideCursor = false;
    }
    else if (state == QMediaPlayer::PlayingState)
    {
        videoWidget->show();
        videoWidget->setFocus();
        videoContral->setVideoTitle(playlist_list.at(1)->currentMedia().canonicalUrl().fileName());
//        videoContral->setVideoTitle(tr("%1").arg(playlist_list.at(1)->currentIndex()));
        //设置屏幕常亮
        timerKeepAwake->start(58000);
        //设置鼠标隐藏
        hideCursor = true;
    }
}

void VideoPlayer::metaDataChanged()
{
    if (player->state() == QMediaPlayer::StoppedState)
    {
        return;
    }
    if (this->isFullScreen())
    {
        return;
    }
    QSize size = videoWidget->sizeHint();
    if (size.width()>0 && size.height()>0)
    {
        if (size.width()<WIDTH || size.height() <HEIGHT)
        {
            size = QSize(size.width()*2, size.height()*2);
        }
        int videoWidth = size.width();
        int videoHeight = size.height();
//        emit gotVideoSize(size);            ///////////////////////////////////////////何用？
        QDesktopWidget desktop;
        if (videoHeight > desktop.availableGeometry().height())
        {
            qreal bilv = qreal(videoWidth) / qreal(videoHeight);qDebug() << bilv;
            videoHeight = desktop.availableGeometry().height();
            videoWidth = videoHeight * bilv;
        }
        this->setGeometry((desktop.width()-videoWidth)/2, (desktop.availableGeometry().height()-videoHeight)/2, videoWidth, videoHeight);
    }
}