#!/usr/bin/python3
# -*- coding: utf-8 -*-

import sys
from PyQt5.QtCore import QTimer, Qt
from PyQt5.QtGui import QPixmap, QPainter, QPen, QColor, QBrush
from PyQt5.QtWidgets import (QWidget, QComboBox, QApplication, QPushButton, QLineEdit, QListWidget, QFileDialog,
                             QTextEdit, QDesktopWidget, QGroupBox, QHBoxLayout, QVBoxLayout, QLabel)


class Test(QWidget):
    def __init__(self):
        super().__init__()
        self.state = None
        self.initUI()

    def initUI(self):
        pixmap = QPixmap("file_name.png")
        lbl = QLabel(self, alignment=Qt.AlignHCenter)
        lbl.setScaledContents(True)
        lbl.setPixmap(pixmap)

        hbox = QHBoxLayout()
        hbox.addWidget(lbl)

        vbox = QVBoxLayout(self)
        vbox.addLayout(hbox)
        vbox.addStretch()
        self.setLayout(vbox)

        self.setWindowTitle("test")
        self.setFixedSize(1200, 1000)
        self.show()

    def paintEvent(self, e):
        self.qp = QPainter()
        self.qp.begin(self)
        self.qp.setRenderHint(QPainter.Antialiasing)
        self.qp.setPen((QPen(QColor("green"))))
        self.qp.drawEllipse(100, 100, 30, 30)
        self.qp.end()


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex = Test()
    sys.exit(app.exec_())