Sleep tight tonight.

anime_ctf.py

"""Sleep tight
:caution: Don't gaze too long.
"""
import numpy as np
import wx
import wx.lib.throbber as throb

N = 256

def ctf(phase):
    r = 20 * np.arange(-N/2, N/2) / N
    X, Y = np.meshgrid(r, r)
    f = np.sin(X**2 + Y**2 - phase * 2 * np.pi)
    src = (255 * f ** 2).astype(np.uint8)
    buf = src.repeat(3,1).tobytes()
    return wx.Image(N, N, buf)


class TestPanel(wx.Panel):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        images = [ctf(x).ConvertToBitmap() for x in np.arange(10)/10]

        self.throb = throb.Throbber(self, -1, images, frameDelay=0.1,
                                    label="You're sleepy.\n"
                                          "You're sleeping.\n"
                                          "You sleep tight...\n")
        self.throb.Font = wx.Font(14,
                                  wx.FONTFAMILY_DEFAULT,
                                  wx.FONTSTYLE_NORMAL,
                                  wx.FONTWEIGHT_EXTRABOLD)
        self.throb.Start()
        ## self.throb.Rest()


if __name__ == "__main__":
    app = wx.App()
    frm = wx.Frame(None)
    frm.panel = TestPanel(frm)
    frm.Show()
    app.MainLoop()

Buy me a coffee...
Buy me a coffee...