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52 lines
1.1 KiB
Python
52 lines
1.1 KiB
Python
"""
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Example that shows animated circles. The animation is run from Python.
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Doing that in JS would be more efficient, but we have not implemented timers
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yet.
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"""
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import math
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from flexx import app, ui
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class Circle(ui.Label):
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CSS = """
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.flx-Circle {
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background: #f00;
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border-radius: 10px;
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width: 10px;
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height: 10px;
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}
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"""
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class Circles(ui.Widget):
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def init(self):
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self._circles = []
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with ui.PinboardLayout():
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for i in range(32):
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x = math.sin(i*0.2)*0.3 + 0.5
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y = math.cos(i*0.2)*0.3 + 0.5
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w = Circle(pos=(x, y))
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self._circles.append(w)
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self.tick()
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# todo: animate in JS!
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def tick(self):
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if not self.session.status:
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return
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import time
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t = time.time()
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for i, circle in enumerate(self._circles):
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x = math.sin(i*0.2 + t)*0.3 + 0.5
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y = math.cos(i*0.2 + t)*0.3 + 0.5
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circle.pos = x, y
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app.call_later(0.03, self.tick)
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if __name__ == '__main__':
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m = app.launch(Circles)
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app.run()
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