import numpy as np
import panel as pn
import ipywidgets as ipw

pn.extension('ipywidgets')

date   = ipw.DatePicker(description='Date')
slider = ipw.FloatSlider(description='Float')
play   = ipw.Play()

layout = ipw.HBox(children=[date, slider, play])

pn.panel(layout)

slider = ipw.IntSlider(description='Slider', min=-5, max=5)

def cb(value):
    return 'The slider value is ' + (
        'negative' if value < 0 else 'nonnegative'
    )

pn.Row(slider, pn.bind(cb, slider))

caption = ipw.Label(value='The slider value is nonnegative')
slider = ipw.IntSlider(min=-5, max=5, value=1, description='Slider')

def handle_slider_change(change):
    caption.value = 'The slider value is ' + (
        'negative' if change.new < 0 else 'nonnegative'
    )

slider.observe(handle_slider_change, names='value')

pn.Row(slider, caption)

import ipyvolume as ipv
x, y, z, u, v = ipv.examples.klein_bottle(draw=False)
fig = ipv.figure()
m = ipv.plot_mesh(x, y, z, wireframe=False)
ipv.squarelim()

pn.panel(fig)

from ipyleaflet import Map, VideoOverlay

m = Map(center=(25, -115), zoom=4)

video = VideoOverlay(
    url="https://www.mapbox.com/bites/00188/patricia_nasa.webm",
    bounds=((13, -130), (32, -100))
)

m.add(video);

pn.panel(m)