kopia lustrzana https://github.com/peterhinch/micropython-micro-gui
67 wiersze
2.2 KiB
Python
67 wiersze
2.2 KiB
Python
# adjuster.py Demo of Adjusters linked to Labels
|
|
|
|
# Released under the MIT License (MIT). See LICENSE.
|
|
# Copyright (c) 2021 Peter Hinch
|
|
|
|
# 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 import Label, CloseButton, Adjuster, FloatAdj
|
|
from gui.core.writer import CWriter
|
|
|
|
# Font for CWriter
|
|
import gui.fonts.font10 as font
|
|
from gui.core.colors import *
|
|
|
|
|
|
class BaseScreen(Screen):
|
|
def __init__(self):
|
|
|
|
super().__init__()
|
|
wri = CWriter(ssd, font, GREEN, BLACK)
|
|
col = 2
|
|
row = 2
|
|
self.lbl1 = Label(wri, row, col, 60, bdcolor=RED)
|
|
a = Adjuster(wri, row, self.lbl1.mcol + 2, fgcolor=RED,
|
|
callback=self.adj1_callback)
|
|
Label(wri, row, a.mcol + 2, "0-1")
|
|
row = self.lbl1.mrow + 5
|
|
self.lbl2 = Label(wri, row, col, 60, bdcolor=RED)
|
|
a = Adjuster(wri, row, self.lbl2.mcol + 2,
|
|
fgcolor=RED, value=0.5,
|
|
callback=self.adj2_callback)
|
|
Label(wri, row, a.mcol + 2, "Scale")
|
|
row = self.lbl2.mrow + 5
|
|
self.lbl3 = Label(wri, row, col, 60, bdcolor=YELLOW)
|
|
a = Adjuster(wri, row, self.lbl3.mcol + 2, fgcolor=YELLOW,
|
|
callback=self.adj3_callback)
|
|
Label(wri, row, a.mcol + 2, "Log")
|
|
# Demo of FloatAdj class
|
|
self.fa = FloatAdj(wri, a.mrow + 5, col, color=BLUE,
|
|
map_func=lambda x: (x - 0.5) * 20,
|
|
value=0.5, fstr="{:6.2f}", text="class")
|
|
CloseButton(wri) # Quit the application
|
|
|
|
def adj1_callback(self, adj):
|
|
v = adj.value() # Typically do mapping here
|
|
self.lbl1.value(f"{v:4.2f}")
|
|
|
|
def adj2_callback(self, adj):
|
|
v = (adj.value() - 0.5) * 10 # Scale and offset
|
|
self.lbl2.value(f"{v:4.2f}")
|
|
|
|
def adj3_callback(self, adj):
|
|
v = 10 ** (3 * adj.value()) # Log 3 decades
|
|
self.lbl3.value(f"{v:4.2f}")
|
|
|
|
#def after_open(self): # Demo of programmatic change
|
|
#self.fa.value(0.8)
|
|
|
|
def test():
|
|
print("Demo of Adjuster control.")
|
|
Screen.change(BaseScreen) # A class is passed here, not an instance.
|
|
|
|
|
|
test()
|