Qtoverlay

from PyQt5 import QtCore, QtWidgets, QtGui

import qtawesome as qta

class overlay(QtWidgets.QWidget):
    def __init__(self, parent=None):
        super(overlay, self).__init__(parent)
        self.parent = parent

        child_alignmenet = QtCore.Qt.AlignHCenter | QtCore.Qt.AlignTop
        
        layout = QtWidgets.QVBoxLayout()
        self.spin_widget = qta.IconWidget()
        
        self.progress_text = QtWidgets.QLabel()
        font = QtGui.QFont()
        font.setPointSize(12)
        self.progress_text.setFont(font)

        self.progress_text.setAlignment(child_alignmenet)
        self.progress_bar = QtWidgets.QProgressBar()
        self.progress_bar.setFixedWidth(220)
        self.progress_bar.setAlignment(child_alignmenet)
                
        spin_icon = qta.icon('mdi.loading', color='blue',
                           animation=qta.Spin(self.spin_widget, step=25))
        self.spin_widget.setIcon(spin_icon)
        self.spin_widget.setIconSize(QtCore.QSize(96, 96))
        self.spin_widget.setAlignment(child_alignmenet)
                
        layout.addWidget(self.spin_widget)
        layout.addWidget(self.progress_text)
        layout.addWidget(self.progress_bar)
        layout.setAlignment(QtCore.Qt.AlignHCenter | QtCore.Qt.AlignVCenter)    
        
        self.setLayout(layout)              
    
    def update_text(self,text):
        self.progress_text.setText(text)

    def update_progress(self, value):
        self.progress_bar.setValue(value)

    def paintEvent(self, event):
        painter = QtGui.QPainter()
        painter.begin(self)
        painter.setRenderHint(QtGui.QPainter.Antialiasing)       
        painter.fillRect(event.rect(), QtGui.QBrush(QtGui.QColor(255, 255, 255, 127)))

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