Mouse move events for ImageView

[Aaron]

Hi,

I am trying to capture when the mouse moves over an ImageView to update my UI.

I tried to hook the events directly on the view:

def move(event):
   print('test')


imv = ImageView()

imv.setMouseTracking(True)

imv.mouseMoveEvent = move 

This does not generate any events.

I also tried subclassing ImageView with similar results:

class MyView(ImageView):
   def __init__(self, parent=None, orientation='bottom', *args, **kargs):
      ImageView.__init__(self, parent, orientation, *args, **kargs)
      self.setMouseTracking(True)

   def mouseMoveEvent(self, event):
      print('hi')

Is there a better way to get mouse move events as opposed to polling the mouse position?

Thanks for your help.

[L. Smash]

Hi Aaron,

this might help:

import pyqtgraph as pg

import numpy as np

pg.mkQApp()

imv = pg.ImageView()

imv.show()

a = np.random.normal(size=(100,100))

imv.setImage(a)

imv.setMouseTracking(True)

def mouseMoved(event):

print "mouse moved"

imv.getImageItem().scene().mouseMoveEvent = mouseMoved

Best,

Lars

[Aaron]

Lars,

Thank you very much for the suggestion, that works perfectly!  I was missing that the scene was the one triggering the events.

Have a great one,

Aaron