kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
49 wiersze
1.4 KiB
Python
49 wiersze
1.4 KiB
Python
|
# linked_sliders.py Minimal micro-gui demo one Slider controlling two others.
|
||
|
|
|
||
|
|
# hardware_setup must be imported before other modules because of RAM use.
|
||
|
|
import hardware_setup # Create a display instance
|
||
|
|
from gui.core.ugui import Screen, ssd
|
||
|
|
|
||
|
|
from gui.widgets.buttons import CloseButton
|
||
|
|
from gui.widgets.sliders import Slider
|
||
|
|
from gui.core.writer import CWriter
|
||
|
|
|
||
|
|
# Font for CWriter
|
||
|
|
import gui.fonts.arial10 as arial10
|
||
|
|
from gui.core.colors import *
|
||
|
|
|
||
|
|
|
||
|
|
class BaseScreen(Screen):
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
args = {
|
||
|
|
'bdcolor' : RED,
|
||
|
|
'slotcolor' : BLUE,
|
||
|
|
'legends' : ('0.0', '0.5', '1.0'),
|
||
|
|
'value' : 0.5,
|
||
|
|
}
|
||
|
|
super().__init__()
|
||
|
|
wri = CWriter(ssd, arial10, GREEN, BLACK, verbose=False)
|
||
|
|
col = 2
|
||
|
|
row = 2
|
||
|
|
dc = 45
|
||
|
|
# Note: callback runs now, but other sliders have not yet been instantiated.
|
||
|
|
self.s0 = Slider(wri, row, col, callback=self.slider_cb, **args)
|
||
|
|
col += dc
|
||
|
|
self.s1 = Slider(wri, row, col, **args)
|
||
|
|
col += dc
|
||
|
|
self.s2 = Slider(wri, row, col, **args)
|
||
|
|
CloseButton(wri)
|
||
|
|
|
||
|
|
def slider_cb(self, s):
|
||
|
|
v = s.value()
|
||
|
|
if hasattr(self, 's1'): # If s1 & s2 have been instantiated
|
||
|
|
self.s1.value(v)
|
||
|
|
self.s2.value(v)
|
||
|
|
|
||
|
|
def test():
|
||
|
|
print('Linked sliders. Leftmost one controls others.')
|
||
|
|
Screen.change(BaseScreen)
|
||
|
|
|
||
|
|
test()
|