micropython-nano-gui/gui/demos/color15.py

# color15.py Test/demo program for 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

from ssd1351_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 Label, Meter, LED, Dial, Pointer, refresh

# 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.')
    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('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.')
clock(70)
compass(70)
meter()
multi_fields(t = 10)
vari_fields()
print('Test complete.')