kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
53 wiersze
1.6 KiB
Python
53 wiersze
1.6 KiB
Python
# adjust_vec.py Demo of Adjusters linked to a dial
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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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import cmath
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from gui.core.ugui import Screen, ssd
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from gui.widgets.label import Label
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from gui.widgets.buttons import CloseButton
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from gui.widgets.adjuster import Adjuster
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from gui.widgets.dial import Dial, Pointer
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from gui.core.writer import CWriter
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# Font for CWriter
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import gui.fonts.font10 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)
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col = 2
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row = 2
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self.dial = Dial(wri, row, col, bdcolor=None, style=Dial.COMPASS)
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self.vec = Pointer(self.dial)
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a = Adjuster(wri, row, self.dial.mcol + 2, fgcolor=BLUE, callback=self.phi_cb)
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Label(wri, row, a.mcol + 2, "ϕ", fgcolor=BLUE)
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a = Adjuster(wri, row + 20, self.dial.mcol + 2, value=1, fgcolor=MAGENTA, callback=self.r_cb)
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Label(wri, row + 20, a.mcol + 2, "r", fgcolor=MAGENTA)
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CloseButton(wri) # Quit the application
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def phi_cb(self, adj):
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v = adj.value()
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r, phi = cmath.polar(self.vec.value())
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self.vec.value(cmath.rect(r, v * 2 * cmath.pi))
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def r_cb(self, adj):
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v = adj.value()
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r, phi = cmath.polar(self.vec.value())
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self.vec.value(cmath.rect(v, phi))
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def test():
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print('Alter a vector using Adjuster control.')
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Screen.change(BaseScreen) # A class is passed here, not an instance.
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test()
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