Russian Qt Forum

class Glass : public QDialog
{
    Q_OBJECT

public:
  Glass(QWidget *parent = 0);
  ~Glass();
  QBrush *mask;
  QLabel *informationText;
  QLabel *glass;
  QLabel *animationContainer;
  QLabel *progress;
  QMovie *defaultMovie;
  int install; // 1 - положить стекло 0 - убрать
  void installGlass(QWidget *w);
public slots:
  void removeGlass();
  void setProgress(double p);
};

Glass::Glass(QWidget *parent):
    QDialog(parent)
{

    install = 0;
    QGraphicsOpacityEffect *opacityEffect = new QGraphicsOpacityEffect(parent);
    const QColor& color = QColor(111, 111, 100);

    mask = new QBrush();
    mask->setColor(color);
    mask->setStyle(Qt::SolidPattern);
    qreal opacity = 0.7;

    opacityEffect->setOpacityMask(*mask);
    opacityEffect->setOpacity(opacity);

    glass = new QLabel(parent);
    glass->setGraphicsEffect(opacityEffect);
    glass->setVisible(false);

    informationText = new QLabel(parent);
    informationText->setVisible(false);
    informationText->setText(trUtf8("Подождите\n Выполняется отбор данных..."));
    QFont font;
    font.setPointSize(12);
    font.setWeight(QFont::Bold);
    informationText->setFont(font);
    informationText->setAlignment(Qt::AlignHCenter);

    QPalette pal(informationText->palette());
    pal.setColor(QPalette::Foreground, QColor("white"));

    informationText->setPalette(pal);

    animationContainer = new QLabel(parent);
    animationContainer->setVisible(false);
    defaultMovie = new QMovie("/pictures/loading51.gif", QByteArray(), animationContainer);
    animationContainer->setMovie(defaultMovie);
    defaultMovie->start();

    progress = new QLabel(parent);
    progress->setVisible(false);
    progress->setPalette(pal);
    progress->setAlignment(Qt::AlignHCenter);

}

Glass::~Glass()
{
  delete progress;
  delete defaultMovie;
  delete animationContainer;
  delete informationText;
  delete glass;
  delete mask;
}

void Glass::installGlass(QWidget *w)
{
  install = 1;
  glass->setVisible(true);
  informationText->setVisible(true);
  animationContainer->setVisible(true);
  progress->setVisible(true);

  progress->setGeometry(w->size().width()/2 - 17,w->size().height()/2 - 80,30,15);
  animationContainer->setGeometry(w->size().width()/2 - 65,w->size().height()/2 - 150,300,150);
  informationText->setGeometry(w->size().width()/2 - 150,w->size().height()/2,300,150);
  glass->setGeometry(0,0,w->size().width(),w->size().height());
}

void Glass::removeGlass()
{
  install = 0;
  glass->setVisible(false);
  informationText->setVisible(false);
  animationContainer->setVisible(false);
  progress->setVisible(false);
}

void Glass::setProgress(double p)
{
  QString str_persent;
  str_persent.setNum((int)p);

  progress->setText(str_persent);
}