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import wx
import reactivex
from reactivex import operators as ops
from reactivex.scheduler.mainloop import WxScheduler
from reactivex.subject import Subject
class Frame(wx.Frame):
def __init__(self):
super(Frame, self).__init__(None)
self.SetTitle("Rx for Python rocks")
self.SetSize((600, 600))
# This Subject is used to transmit mouse moves to labels
self.mousemove = Subject()
self.Bind(wx.EVT_MOTION, self.OnMotion)
def OnMotion(self, event):
self.mousemove.on_next((event.GetX(), event.GetY()))
def main():
app = wx.App()
scheduler = WxScheduler(wx)
app.TopWindow = frame = Frame()
frame.Show()
text = "TIME FLIES LIKE AN ARROW"
def on_next(info):
label, (x, y), i = info
label.Move(x + i * 12 + 15, y)
label.Show()
def handle_label(label, i):
delayer = ops.delay(i * 0.100)
mapper = ops.map(lambda xy: (label, xy, i))
return frame.mousemove.pipe(
delayer,
mapper,
)
def make_label(char):
label = wx.StaticText(frame, label=char)
label.Hide()
return label
mapper = ops.map(make_label)
labeler = ops.flat_map_indexed(handle_label)
reactivex.from_(text).pipe(
mapper,
labeler,
).subscribe(on_next, on_error=print, scheduler=scheduler)
frame.Bind(wx.EVT_CLOSE, lambda e: (scheduler.cancel_all(), e.Skip()))
app.MainLoop()
if __name__ == "__main__":
main()
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