kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
94 wiersze
3.2 KiB
Python
94 wiersze
3.2 KiB
Python
# tstat.py nanogui demo for the Tstat 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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# Usage:
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# import gui.demos.tstat
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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.buttons import Button, CloseButton
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from gui.widgets.sliders import Slider
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from gui.widgets.label import Label
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from gui.widgets.tstat import Tstat, Region
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from gui.widgets.led import LED
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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 arial10
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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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def btncb(btn, reg, low, high): # Button callbck
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reg.adjust(low, high)
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def delete_alarm(btn, ts, reg):
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ts.del_region(reg)
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super().__init__()
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wri = CWriter(ssd, arial10, GREEN, BLACK, verbose=False)
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col = 2
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row = 10
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sl = Slider(wri, row, col, callback=self.slider_cb,
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bdcolor=RED, slotcolor=BLUE,
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legends=('0.0', '0.5', '1.0'))
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self.ts = Tstat(wri, row, sl.mcol + 5, divisions = 4, ptcolor=YELLOW, height=100, width=15,
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style=Tstat.BAR, legends=('0.0', '0.5', '1.0'))
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reg = Region(self.ts, 0.4, 0.55, MAGENTA, self.ts_cb)
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al = Region(self.ts, 0.9, 1.0, RED, self.al_cb)
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col = self.ts.mcol + 5
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self.lbl = Label(wri, row, col, 35, bdcolor=RED, bgcolor=BLACK)
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self.alm = LED(wri, self.lbl.mrow + 5, col, height=20, color=RED, bdcolor=BLACK)
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self.led = LED(wri, self.alm.mrow + 5, col, height=20, color=YELLOW, bdcolor=BLACK)
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self.grn = LED(wri, self.led.mrow + 5, col, height=20, color=GREEN, bdcolor=BLACK)
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col = self.lbl.mcol + 5
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btn = Button(wri, row + 30, col, width=0,
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text='down', litcolor=RED,
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callback=btncb, args=(reg, 0.2, 0.3))
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btn1 = Button(wri, btn.mrow + 5, col, width=btn.width,
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text='up', litcolor=RED,
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callback=btncb, args=(reg, 0.5, 0.6))
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Button(wri, btn1.mrow + 5, col, width=btn.width,
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text='del', litcolor=RED,
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callback=delete_alarm, args=(self.ts, al))
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CloseButton(wri)
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def after_open(self):
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self.ts.value(0) # Trigger callback
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def slider_cb(self, s):
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if hasattr(self, 'lbl'):
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v = s()
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self.lbl('{:5.3f}'.format(v))
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self.ts(v)
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def ts_cb(self, reg, reason):
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# Hysteresis
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if reason == reg.EX_WA_IB or reason == reg.T_IB:
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self.led(False)
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self.grn(True)
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elif reason == reg.EX_WB_IA or reason == reg.T_IA:
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self.led(True)
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self.grn(False)
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def al_cb(self, reg, reason):
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if reason == reg.EN_WB or reason == reg.T_IA: # Logical OR
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self.alm(True)
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elif reason & (reg.EX_WB_IB | reg.EX_WA_IB | reg.T_IB): # Bitwise OR alternative
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self.alm(False)
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def test():
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if ssd.height < 128 or ssd.width < 128:
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print(' This test requires a display of at least 128x128 pixels.')
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else:
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print('Tstat demo.')
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Screen.change(BaseScreen)
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test()
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