kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
100 wiersze
3.1 KiB
Python
100 wiersze
3.1 KiB
Python
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# active.py micro-gui demo of widgets that respond to user control
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# Import SSD and Display instances. Must be done first because of RAM use.
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from hardware_setup import display, ssd # Create a display instance
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from gui.core.ugui import Screen
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from gui.core.writer import CWriter
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import gui.fonts.arial10 as arial10 # Font for CWriter
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from gui.core.colors import *
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# Widgets
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from gui.widgets.label import Label
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from gui.widgets.scale import Scale
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from gui.widgets.scale_log import ScaleLog
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from gui.widgets.buttons import Button, CloseButton
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from gui.widgets.sliders import Slider, HorizSlider
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from gui.widgets.knob import Knob
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from gui.widgets.checkbox import Checkbox
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class BaseScreen(Screen):
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def __init__(self):
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def tickcb(f, c):
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if f > 0.8:
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return RED
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if f < -0.8:
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return BLUE
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return c
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def tick_log_cb(f, c):
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if f > 20_000:
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return RED
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if f < 4:
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return BLUE
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return c
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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 = 200
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Label(wri, row, col, 'Result')
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col = 42
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self.lbl = Label(wri, row, col, 70, bdcolor=RED)
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self.vslider = Slider(wri, 2, 2, callback=self.slider_cb,
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bdcolor=RED, slotcolor=BLUE,
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legends=('0.0', '0.5', '1.0'), value=0.5)
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col = 80
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row = 15
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self.hslider = HorizSlider(wri, row, col, callback=self.slider_cb,
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bdcolor=YELLOW, slotcolor=BLUE,
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legends=('0.0', '0.5', '1.0'), value=0.7)
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row += 30
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self.scale = Scale(wri, row, col, width = 150, tickcb = tickcb,
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pointercolor=RED, fontcolor=YELLOW, bdcolor=CYAN,
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callback=self.cb, active=True)
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row += 40
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self.scale_log = ScaleLog(wri, row, col, width = 150, tickcb = tick_log_cb,
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pointercolor=RED, fontcolor=YELLOW, bdcolor=CYAN,
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callback=self.cb, value=10, active=True)
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row = 120
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self.knob = Knob(wri, row, 2, callback = self.cb, bgcolor=DARKGREEN, color=LIGHTRED)
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col = 150
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row = 185
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Checkbox(wri, row, col, callback=self.cbcb)
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col += 35
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Label(wri, row, col, 'Enable/disable')
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CloseButton(wri)
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def cb(self, obj):
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self.lbl.value('{:4.2f}'.format(obj.value()))
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def cbcb(self, cb):
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val = cb.value()
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self.vslider.greyed_out(val)
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self.hslider.greyed_out(val)
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self.scale.greyed_out(val)
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self.scale_log.greyed_out(val)
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self.knob.greyed_out(val)
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def slider_cb(self, s):
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self.cb(s)
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v = s.value()
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if v < 0.2:
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s.color(BLUE)
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elif v > 0.8:
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s.color(RED)
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else:
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s.color(GREEN)
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def test():
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if display.height < 240 or display.width < 320:
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print(' This test requires a display of at least 320x240 pixels.')
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else:
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print('Testing micro-gui...')
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Screen.change(BaseScreen)
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test()
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