[Python] How to resolve conflict between vtk interactor and dockwidget connected to...

I want the centralwidget to fill the main window depending on the docking and floating states of the dockwidget. I solved the problem with this code, without using VTK.

However, when I connect the VTK interactor to the centralwidget, the centralwidget doesn't fill the main window. I think there's a conflict between VTK and the dockwidget. Please let me know if there's a way to fix this or another way to achieve what I want.

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QDockWidget, QTextEdit
from PyQt5.QtCore import Qt

class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.setWindowTitle("Multiple DockWidgets")

self.vtkv=VtkView()
self.setCentralWidget(self.vtkv.interactor)

self.docks = {}

dock_widget1 = QDockWidget("Dock Widget 1", self)
dock_widget1.setWidget(QTextEdit("Content for Dock 1"))
self.addDockWidget(Qt.RightDockWidgetArea, dock_widget1)
self.docks['dock1'] = dock_widget1

dock_widget2 = QDockWidget("Dock Widget 2", self)
dock_widget2.setWidget(QTextEdit("Content for Dock 2"))
self.addDockWidget(Qt.LeftDockWidgetArea, dock_widget2)
self.docks['dock2'] = dock_widget2

for key, dock in self.docks.items():
# Use a lambda function to pass the dock object to the handler
dock.visibilityChanged.connect(lambda visible, d=dock: self.on_dock_visibility_changed(visible, d))

def on_dock_visibility_changed(self, visible, dock):
pass

class VtkView:
def __init__(self):
self.ren=vtkRenderer()
self.interactor=self.GetRenderWindow().GetInteractor()

if __name__ == "__main__":
app = QApplication(sys.argv)
main_window = MainWindow()
main_window.show()
sys.exit(app.exec_())

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