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color15.py
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# color15.py Test/demo program for larger displays. Cross-platform.
# Tested on Adafruit ssd1351-based OLED displays:
# Adafruit 1.5" 128*128 OLED display: https://www.adafruit.com/product/1431
# Adafruit 1.27" 128*96 display https://www.adafruit.com/product/1673
# For wiring details see drivers/ADAFRUIT.md in this repo.
# Released under the MIT License (MIT). See LICENSE.
# Copyright (c) 2018-2020 Peter Hinch
# Initialise hardware and framebuf before importing modules.
from color_setup import ssd # Create a display instance
import cmath
import utime
import uos
from gui.core.writer import Writer, CWriter
from gui.core.nanogui import refresh
from gui.widgets.led import LED
from gui.widgets.meter import Meter
from gui.widgets.label import Label
from gui.widgets.dial import Dial, Pointer
# Fonts
import gui.fonts.arial10 as arial10
import gui.fonts.freesans20 as freesans20
from gui.core.colors import *
CWriter.set_textpos(ssd, 0, 0) # In case previous tests have altered it
wri = CWriter(ssd, arial10, GREEN, BLACK, verbose=False)
wri.set_clip(True, True, False)
def meter():
print('Meter test.')
refresh(ssd, True) # Clear any prior image
color = lambda v : RED if v > 0.7 else YELLOW if v > 0.5 else GREEN
txt = lambda v : 'ovr' if v > 0.7 else 'high' if v > 0.5 else 'ok'
m0 = Meter(wri, 5, 2, divisions = 4, ptcolor=YELLOW,
label='left', style=Meter.BAR, legends=('0.0', '0.5', '1.0'))
l0 = LED(wri, ssd.height - 16 - wri.height, 2, bdcolor=YELLOW, label ='over')
m1 = Meter(wri, 5, 50, divisions = 4, ptcolor=YELLOW,
label='right', style=Meter.BAR, legends=('0.0', '0.5', '1.0'))
l1 = LED(wri, ssd.height - 16 - wri.height, 50, bdcolor=YELLOW, label ='over')
m2 = Meter(wri, 5, 98, divisions = 4, ptcolor=YELLOW,
label='bass', style=Meter.BAR, legends=('0.0', '0.5', '1.0'))
l2 = LED(wri, ssd.height - 16 - wri.height, 98, bdcolor=YELLOW, label ='over')
steps = 10
for n in range(steps):
v = int.from_bytes(uos.urandom(3),'little')/16777216
m0.value(v, color(v))
l0.color(color(v))
l0.text(txt(v), fgcolor=color(v))
v = n/steps
m1.value(v, color(v))
l1.color(color(v))
l1.text(txt(v), fgcolor=color(v))
v = 1 - n/steps
m2.value(v, color(v))
l2.color(color(v))
l2.text(txt(v), fgcolor=color(v))
refresh(ssd)
utime.sleep(1)
def multi_fields(t):
print('Dynamic labels.')
refresh(ssd, True) # Clear any prior image
nfields = []
dy = wri.height + 6
y = 2
col = 15
width = wri.stringlen('99.99')
for txt in ('X:', 'Y:', 'Z:'):
Label(wri, y, 0, txt) # Use wri default colors
nfields.append(Label(wri, y, col, width, bdcolor=None)) # Specify a border, color TBD
y += dy
end = utime.ticks_add(utime.ticks_ms(), t * 1000)
while utime.ticks_diff(end, utime.ticks_ms()) > 0:
for field in nfields:
value = int.from_bytes(uos.urandom(3),'little')/167772
overrange = None if value < 70 else YELLOW if value < 90 else RED
field.value('{:5.2f}'.format(value), fgcolor = overrange, bdcolor = overrange)
refresh(ssd)
utime.sleep(1)
Label(wri, 0, 64, ' OK ', True, fgcolor = RED)
refresh(ssd)
utime.sleep(1)
def vari_fields():
print('Variable label styles.')
VIOLET = create_color(12, 255, 0, 255) # Custom color
refresh(ssd, True) # Clear any prior image
wri_large = CWriter(ssd, freesans20, GREEN, BLACK, verbose=False)
wri_large.set_clip(True, True, False)
Label(wri_large, 0, 0, 'Text')
Label(wri_large, 20, 0, 'Border')
width = wri_large.stringlen('Yellow')
lbl_text = Label(wri_large, 0, 65, width)
lbl_bord = Label(wri_large, 20, 65, width)
lbl_text.value('Red')
lbl_bord.value('Red')
lbl_var = Label(wri_large, 50, 2, '25.46', fgcolor=RED, bdcolor=RED)
refresh(ssd)
utime.sleep(2)
lbl_text.value('Red')
lbl_bord.value('Yellow')
lbl_var.value(bdcolor=YELLOW)
refresh(ssd)
utime.sleep(2)
lbl_text.value('Red')
lbl_bord.value('None')
lbl_var.value(bdcolor=False)
refresh(ssd)
utime.sleep(2)
lbl_text.value('Yellow')
lbl_bord.value('None')
lbl_var.value(fgcolor=YELLOW)
refresh(ssd)
utime.sleep(2)
lbl_text.value('Violet')
lbl_bord.value('None')
lbl_var.value(fgcolor=VIOLET)
refresh(ssd)
utime.sleep(2)
lbl_text.value('Blue')
lbl_bord.value('Green')
lbl_var.value('18.99', fgcolor=BLUE, bdcolor=GREEN)
Label(wri, ssd.height - wri.height - 2, 0, 'Done', fgcolor=RED)
refresh(ssd)
def clock(x):
print('Clock test.')
refresh(ssd, True) # Clear any prior image
lbl = Label(wri, 5, 85, 'Clock')
dial = Dial(wri, 5, 5, height = 75, ticks = 12, bdcolor=None, label=50) # Border in fg color
hrs = Pointer(dial)
mins = Pointer(dial)
hrs.value(0 + 0.7j, RED)
mins.value(0 + 0.9j, YELLOW)
dm = cmath.rect(1, -cmath.pi/30) # Rotate by 1 minute (CW)
dh = cmath.rect(1, -cmath.pi/1800) # Rotate hours by 1 minute
for n in range(x):
refresh(ssd)
utime.sleep_ms(200)
mins.value(mins.value() * dm, YELLOW)
hrs.value(hrs.value() * dh, RED)
dial.text('ticks: {}'.format(n))
lbl.value('Done')
def compass(x):
print('Compass test.')
refresh(ssd, True) # Clear any prior image
dial = Dial(wri, 5, 5, height = 75, bdcolor=None, label=50, style = Dial.COMPASS)
bearing = Pointer(dial)
bearing.value(0 + 1j, RED)
dh = cmath.rect(1, -cmath.pi/30) # Rotate by 6 degrees CW
for n in range(x):
utime.sleep_ms(200)
bearing.value(bearing.value() * dh, RED)
refresh(ssd)
print('Color display test is running.')
print('Test runs to completion: ~65 secs.')
clock(70)
compass(70)
meter()
multi_fields(t = 10)
vari_fields()
print('Test complete.')