kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
49 wiersze
1.3 KiB
Python
49 wiersze
1.3 KiB
Python
# dropdown.py micro-gui demo of Dropdown class
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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, Window, ssd
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from gui.widgets import Label, CloseButton, Dropdown
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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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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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els = ('hydrogen', 'helium', 'neon', 'argon', 'krypton', 'xenon', 'radon')
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self.dd = Dropdown(wri, row, col,
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elements = els,
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dlines = 5, # Show 5 lines
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bdcolor = GREEN,
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callback=self.ddcb)
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row += 30
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self.lbl = Label(wri, row, col, self.dd.width, bdcolor=RED)
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CloseButton(wri) # Quit the application
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def after_open(self):
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self.lbl.value(self.dd.textvalue())
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def ddcb(self, dd):
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if hasattr(self, 'lbl'):
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self.lbl.value(dd.textvalue())
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def test():
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print('Dropdown demo.')
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Screen.change(BaseScreen)
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test()
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