Is there an easy way to zoom two plot widgets at once?

问题

I am currently working on a graphical display tool for EEG data. My group wants to be able to zoom the plot to see certain channels. However, there is a separate widget beside the waveform plot which displays the labels for the channels.

I want to make it so that when the waveform plot is zoomed (say using ViewBox's RectMode zoom), the channel labels will also zoom. I have included a picture of our display for reference.

来源：https://stackoverflow.com/questions/40020266/is-there-an-easy-way-to-zoom-two-plot-widgets-at-once