Event names getting overlapped It

[Dev-satish]

Description of the problem

While I was trying to reproduce the issue in #130 in mne-tools/mne-qt-browser I saw that the event name are getting overlapped with each other

Steps to reproduce

# %%
import mne

sample_dir = mne.datasets.sample.data_path()
sample_fname = sample_dir / 'MEG' / 'sample' / 'sample_audvis_raw.fif'

raw = mne.io.read_raw_fif(sample_fname)
raw.crop(tmax=60)

events = mne.find_events(raw, stim_channel='STI 014')
event_id = {'auditory/left': 1, 'auditory/right': 2, 'visual/left': 3,
            'visual/right': 4, 'face': 5, 'buttonpress': 32}


raw.plot(events=events, event_id=event_id)

Link to data

No response

Expected results

It should have been consistent with the event duration like shown by @hoechenberger in the issue

Actual results

Additional information

none

[Dev-satish]

I realized that as soon as I press - time button it the event name separates but I feel this issues can still be worked upon

[hoechenberger]

Yes it's definitely an issue; I wonder if we could detect the collision and display just a marker or truncated event description in that case, and only expose the full description on hover.

[Dev-satish]

What if we add a header and display the description there.
I think I could explain it better visually-

[cbrnr]

You will always be able to have long enough event names to overflow even in a dedicated area.

[cbrnr]

Yes it's definitely an issue; I wonder if we could detect the collision and display just a marker or truncated event description in that case, and only expose the full description on hover.

If this is possible I think a truncated version would be very nice! I'd truncate first, and if even that doesn't work (e.g. zoom out far enough) I'd remove the label completely.

Color-coding event types would be a good idea not just in that particular case – is this supported?

[hoechenberger]

I'd like to second @cbrnr's proposals, I like that

[marsipu]

Color-coding event types would be a good idea not just in that particular case – is this supported?

You can pass a dict with custom colors to event_color in raw.plot(). Or do you mean something else?

[marsipu]

A qt-favoring solution in terms of simplicity might also be giving the event-labels a background with the color of the plot-background. If they stack you could at least read the one on top. And to expand we could intercept hoverEvent of EventLine to put the hovered EventLine on top (self.setZValue(1)).
You find the code for the InfiniteLine from pyqtgraph which EventLine inherits here.

[cbrnr]

You can pass a dict with custom colors to event_color in raw.plot(). Or do you mean something else?

Yes, but I meant the default behavior should be different colors for different events.