kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
50 wiersze
1.4 KiB
Python
50 wiersze
1.4 KiB
Python
# linked_sliders.py Minimal micro-gui demo one Slider controlling two others.
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# Released under the MIT License (MIT). See LICENSE.
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# Copyright (c) 2021 Peter Hinch
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# hardware_setup must be imported before other modules because of RAM use.
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import hardware_setup # Create a display instance
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from gui.core.ugui import Screen, ssd
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from gui.widgets import CloseButton, Slider
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from gui.core.writer import CWriter
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# Font for CWriter
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import gui.fonts.arial10 as font
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from gui.core.colors import *
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class BaseScreen(Screen):
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def __init__(self):
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args = {
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'bdcolor' : RED,
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'slotcolor' : BLUE,
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'legends' : ('0', '5', '10'),
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'value' : 0.5,
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}
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super().__init__()
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wri = CWriter(ssd, font, GREEN, BLACK, verbose=False)
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col = 2
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row = 2
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# Note: callback runs now, but other sliders have not yet been instantiated.
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self.s0 = Slider(wri, row, col, callback=self.slider_cb, **args)
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col = self.s0.mcol + 2
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self.s1 = Slider(wri, row, col, **args)
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col = self.s1.mcol + 2
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self.s2 = Slider(wri, row, col, **args)
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CloseButton(wri)
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def slider_cb(self, s):
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v = s.value()
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if hasattr(self, 's1'): # If s1 & s2 have been instantiated
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self.s1.value(v)
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self.s2.value(v)
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def test():
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print('Linked sliders. Leftmost one controls others.')
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Screen.change(BaseScreen)
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test()
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