Short description

I'd like to be able to add a context menu item to an ROI object. In my specific case, so that I can add a change colour action. I expected to be able to add a new item to the existing menu, so that I get the nice benefits of the hierarchical menus. But the ROI menu is tied to it being removable.

Code to reproduce

So I would like this to give me a menu with "Test", but not "Remove ROI"

import numpy as np
import pyqtgraph as pg
from pyqtgraph.Qt import QtWidgets

app = pg.mkQApp("ImageView Example")
win = pg.GraphicsView()
view = pg.ViewBox()
win.setCentralItem(view)
img = pg.ImageItem(np.zeros((100,100)))
view.addItem(img)
win.show()

roi = pg.ROI((10,10), (50,50), removable=False)
view.addItem(roi)

menu = roi.getMenu()
menu.addAction("Test")

if __name__ == '__main__':
    pg.exec()

If I set removable=True I get

otherwise I get no context menu for the ROI

Expected behavior

Context menu with new item

Real behavior

No context menu

Tested environment(s)

• PyQtGraph version: Current master '0.13.4.dev0'
• Qt Python binding: PyQt5 5.15.10 Qt 5.15.2
• Python version: 3.12.1
• NumPy version: 1.26.4
• Operating system: Fedora 39
• Installation method: running from git, also with conda

Additional context