kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
59 wiersze
1.9 KiB
Python
59 wiersze
1.9 KiB
Python
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# adjuster.py Demo of Adjusters linked to Labels
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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.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.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.lbl1 = Label(wri, row, col, 60, bdcolor=RED)
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a = Adjuster(wri, row, self.lbl1.mcol + 2, fgcolor=RED, callback=self.adj1_callback)
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Label(wri, row, a.mcol + 2, "Simple")
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row = self.lbl1.mrow + 5
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self.lbl2 = Label(wri, row, col, 60, bdcolor=RED)
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a =Adjuster(wri, row, self.lbl2.mcol + 2, fgcolor=RED, value=0.5, callback=self.adj2_callback)
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Label(wri, row, a.mcol + 2, "Scale")
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row = self.lbl2.mrow + 5
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self.lbl3 = Label(wri, row, col, 60, bdcolor=YELLOW)
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a = Adjuster(wri, row, self.lbl3.mcol + 2, fgcolor=YELLOW, callback=self.adj3_callback)
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Label(wri, row, a.mcol + 2, "Log")
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CloseButton(wri) # Quit the application
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def adj1_callback(self, adj):
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v = adj.value() # Typically do mapping here
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self.lbl1.value(f'{v:4.2f}')
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def adj2_callback(self, adj):
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v = (adj.value() - 0.5) * 10 # Scale and offset
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self.lbl2.value(f'{v:4.2f}')
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def adj3_callback(self, adj):
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v = 10 ** (3 * adj.value()) # Log 3 decades
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self.lbl3.value(f'{v:4.2f}')
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def test():
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print('Demo of 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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