Event loop with QtQuick

qt_event_loop

#!/usr/bin/env python3

from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtQuick import *
from PyQt5.QtWidgets import *
import sys

class Rect(QQuickPaintedItem):
	def __init__(self, parent=None):
		super().__init__(parent)
		self.setWidth(30)
		self.setHeight(30)
		self.setX(30)
		self.setY(30)
	
	def paint(self, pt):
		pt.fillRect(self.contentsBoundingRect(), Qt.red)

class Window(QWidget):
	def __init__(self, parent=None):
		super().__init__(parent)
		self._win = QQuickWindow()
		self._wid = QWidget.createWindowContainer(self._win)
		self._wid.setMinimumSize(QSize(200, 200))
		lay = QVBoxLayout()
		lay.addWidget(self._wid)
		self.setLayout(lay)
		self._item = Rect(self._win.contentItem())
	
	def keyPressEvent(self, event):
		super().keyPressEvent(event)
		print('Key pressed')
		an = QPropertyAnimation(self._item, 'x')
		an.setDuration(2000)
		an.setEndValue(100)
		ev = QEventLoop()
		an.finished.connect(ev.quit)
		an.start()
		# Prevents other events to be processed
		ev.exec_(QEventLoop.ExcludeUserInputEvents) 
		print('Anim finished!')

if __name__ == '__main__':
	a = QApplication(sys.argv)
	w = Window()
	w.show()
	a.exec_()