def __init__(self):
super().__init__()
Label((0, 0), font=font14, value='Dialog box demonstration.')
Label((0, 100),
font=font10,
value='User written and gdialog generated')
self.lbl_result = Label((10, 50),
font=font10,
fontcolor=WHITE,
width=70,
border=2,
fgcolor=RED,
bgcolor=DARKGREEN)
# User written dialog
fwdbutton(195, 242, UserDialogBox, text='User')
# Dialog built using gdialog.py DialogBox
dialog_elements = (('Yes', GREEN), ('No', RED), ('Foo', YELLOW))
fwdbutton(0,
242,
DialogBox,
text='Gen',
args=(font14, ),
kwargs={
'elements': dialog_elements,
'label': 'Test dialog'
})
quitbutton(390, 242)
def __init__(self):
super().__init__()
fwdbutton(0, 242, BackScreen, 'Fast')
fwdbutton(120, 242, TabScreen, 'Tabs')
quitbutton()
tb1 = Textbox((0, 0), 200, 8, font=IFONT16, **tbargs)
tb2 = Textbox((210, 0), 200, 8, font=IFONT16, clip=False, **tbargs)
Label((0, 135), width=200, value='Clipping', **labels)
Label((210, 135), width=200, value='Wrapping', **labels)
btns = (Button((0, 180),
text='Up',
callback=btn_cb,
args=(tb1, tb2, 1),
**btntable),
Button((120, 180),
text='Down',
callback=btn_cb,
args=(tb1, tb2, -1),
**btntable))
for btn in btns:
btn.greyed_out(True) # Disallow until textboxes are populated
self.reg_task(txt_test(tb1, None))
self.reg_task(txt_test(tb2, btns))
def __init__(self):
super().__init__()
# Scale with custom variable and legends.
Label((0, 0), font=font14, value='FM radio scale 88-108MHz.')
def legendcb(f):
return '{:2.0f}'.format(88 + ((f + 1) / 2) * (108 - 88))
self.scale = Scale((0, 30),
font10,
legendcb=legendcb,
width=350,
height=60,
bgcolor=BLACK,
fgcolor=GREEN,
pointercolor=RED,
fontcolor=YELLOW)
self.reg_task(self.radio())
# Scale with varying color.
Label((0, 130),
font=font14,
value='Default scale -1 to +1, varying colors.')
def tickcb(f, c):
if f > 0.8:
return RED
if f < -0.8:
return BLUE
return c
self.lbl_result = Label((0, 240),
font=font14,
fontcolor=WHITE,
width=70,
border=2,
fgcolor=RED,
bgcolor=DARKGREEN)
self.scale1 = Scale((0, 160),
font10,
tickcb=tickcb,
width=350,
height=60,
bgcolor=BLACK,
fgcolor=GREEN,
pointercolor=RED,
fontcolor=YELLOW)
self.reg_task(self.default())
quitbutton(390, 242)
def __init__(self):
super().__init__()
labels = { 'width' : 60,
'fontcolor' : WHITE,
'border' : 2,
'fgcolor' : RED,
'bgcolor' : DARKGREEN,
'font' : font10,
}
quitbutton()
meter1 = Meter((320, 0), barcolor=YELLOW, fgcolor=CYAN, bgcolor=BLACK)
meter2 = Meter((360, 0), font=font10, legends=('0','5','10'), barcolor=GREEN,
fgcolor=CYAN, bgcolor=BLACK, cb_move=self.meter_change)
x = 230
lstlbl = []
for n in range(3):
lstlbl.append(Label((x, 40 + 60 * n), **labels))
led = LED((420, 0), border = 2)
slave1 = HorizSlider((10, 100), fgcolor = GREEN,
cb_move = self.slave_moved, cbm_args = (lstlbl[1],), border = 2)
slave2 = HorizSlider((10, 160), fgcolor = GREEN,
cb_move = self.slave_moved, cbm_args = (lstlbl[2],), border = 2)
master = HorizSlider((10, 40), font = font10, fgcolor = YELLOW, fontcolor = WHITE,
legends = ('0', '5', '10'), cb_end = self.callback,
cbe_args = ('Master',), cb_move = self.master_moved, cbm_args = (lstlbl[0], slave1, slave2, led),
value=0.5, border = 2)
# On/Off toggle: enable/disable quit button and one slider
bs = ButtonList(self.cb_en_dis)
lst_en_dis = [slave1, slave2, master]
bs.add_button((280, 240), font = font14, fontcolor = BLACK, fgcolor = GREEN,
text = 'Disable', height=30, width=90, args = [True, lst_en_dis])
bs.add_button((280, 240), font = font14, fontcolor = BLACK, fgcolor = RED,
text = 'Enable', height=30, width=90, args = [False, lst_en_dis])
self.reg_task(self.test_meter(meter1))
self.reg_task(self.test_meter(meter2))
def __init__(self, font, *, elements, location=(20, 20), label=None,
bgcolor=DARKGREEN, buttonwidth=25, closebutton=True):
height = 150
spacing = 20
buttonwidth = max(max([TFT.get_stringsize(x[0], font)[0] for x in elements]) + 4, buttonwidth)
buttonheight = max(TFT.get_stringsize('x', font)[1], 25)
nelements = len(elements)
width = spacing + (buttonwidth + spacing) * nelements
if label is not None:
width = max(width, TFT.get_stringsize(label, font)[0] + 2 * spacing)
super().__init__(location, height, width, bgcolor = bgcolor)
x = self.location[0] + spacing # Coordinates relative to physical display
gap = 0
if nelements > 1:
gap = ((width - 2 * spacing) - nelements * buttonwidth) // (nelements - 1)
y = self.location[1] + self.height - buttonheight - 10
if label is not None:
Label((x, self.location[1] + 50), font = font, bgcolor = bgcolor, value = label)
for text, color in elements:
Button((x, y), height = buttonheight, width = buttonwidth, font = font, fontcolor = BLACK, fgcolor = color,
text = text, shape = RECTANGLE,
callback = self.back, args = (text,))
x += buttonwidth + gap
if closebutton:
x, y = TFT.get_stringsize('X', font)
size = max(x, y, 25)
Button((self.location[0] + width - (size + 1), self.location[1] + 1), height = size, width = size, font = font,
fgcolor = RED, text = 'X', shape = RECTANGLE,
callback = self.back, args = ('Close',))
def __init__(self):
super().__init__()
Label((0, 0), font=font14, value='Multiple screen demonstration.')
fwdbutton(0, 242, KnobScreen, 'Knobs')
fwdbutton(100, 242, SliderScreen, 'Sliders')
fwdbutton(200, 242, AssortedScreen, 'Various')
fwdbutton(0, 100, TaskScreen, 'Tasks')
quitbutton(390, 242)
def __init__(self):
super().__init__()
Label((0, 0),
font=font14,
value='Demo of linear and log scale controls.')
fwdbutton(10, 50, linearScreen, 'Linear')
fwdbutton(10, 100, LogScreen, 'Log')
quitbutton(200, 242)
def volume(x, y): # Volume slider
table = {
'fontcolor': WHITE,
'font': font10,
'fgcolor': YELLOW,
'legends': ('0', '5', '11'),
'value': 0.7,
}
Label((x + 50, y + 100), font=font14, value='Volume')
return Slider((x, y + 10), **table)
def balance(x, y): # Balance slider
table = {
'fontcolor': WHITE,
'legends': ('L', 'C', 'R'),
'font': font10,
'fgcolor': CYAN,
'value': 0.5,
}
Label((x, y + 50), font=font14, value='Balance')
return HorizSlider((x, y), **table)
def __init__(self):
super().__init__()
backbutton(390, 242)
fwdbutton(0, 242, BackScreen)
labels = {
'width': 70,
'fontcolor': WHITE,
'border': 2,
'fgcolor': RED,
'bgcolor': (0, 40, 0),
}
lstlbl = []
for n in range(2):
lstlbl.append(Label((120, 120 + 40 * n), font=font10, **labels))
lbl_1 = Label((120, 120), font=font10, **labels)
lbl_2 = Label((120, 160), font=font10, **labels)
meter1 = Meter((320, 0),
font=font10,
legends=('0', '5', '10'),
barcolor=YELLOW,
fgcolor=GREEN,
bgcolor=BLACK)
dial1 = Dial((120, 0), fgcolor=YELLOW, border=2, pointers=(0.9, 0.7))
Knob((0, 0),
fgcolor=GREEN,
bgcolor=(0, 0, 80),
color=(168, 63, 63),
border=2,
cb_end=self.callback,
cbe_args=['Knob1'],
cb_move=self.knob_moved,
cbm_args=[dial1, 0, lbl_1, meter1])
Knob((0, 120),
fgcolor=WHITE,
border=2,
cb_move=self.knob_moved,
cbm_args=[dial1, 1, lbl_2],
cb_end=self.callback,
cbe_args=['Knob2'],
arc=pi * 1.5)
def __init__(self):
super().__init__()
self.tasks = [] # Control cancellation explicitly
Label((0, 0), font=font14, value='Green dial runs only')
Label((0, 30), font=font14, value='when screen is visible')
Label((0, 120), font=font14, value="Yellow dial's value is")
Label((0, 150), font=font14, value='computed continuously.')
self.dial1 = Dial((350, 10),
fgcolor=GREEN,
border=2,
pointers=(0.9, 0.7))
self.dial2 = Dial((350, 120),
fgcolor=YELLOW,
border=2,
pointers=(0.9, 0.7))
self.pause = False # asyncio can't pause coros so handle at application level
self.tasks.append(asyncio.create_task(self.maintask(self.dial1, True)))
self.tasks.append(asyncio.create_task(self.maintask(self.dial2)))
fwdbutton(0, 242, BackScreen)
self.backbutton(390, 242) # Special backbutton
def show(self):
tft = self.tft
width = self.width
font = self.font
fh = self.font.height()
fhdelta = fh / 2
tl = self.ticklen
x0 = self.x0
x1 = self.x1
y0 = self.y0
y1 = self.y1
height = y1 - y0
if self.redraw: # An overlaying screen has closed. Force redraw.
self.redraw = False
self.drawn = False
self.ptr_y = None # Invalidate previous bar so it's redrawn.
if not self.drawn:
self.drawn = True
if self.divisions > 0:
xs = x0 + 1
xe = x1 - 1
dy = height / (self.divisions) # Tick marks
for tick in range(self.divisions + 1):
ypos = int(y0 + dy * tick)
tft.draw_line(xs, ypos, xe, ypos, self.fgcolor)
if self.legends is not None and font is not None: # Legends
if len(self.legends) <= 1:
dy = 0
else:
dy = height / (len(self.legends) - 1)
yl = self.y1 # Start at bottom
for legend in self.legends:
# constrain y to vertical extent of widget
loc = (x1 + 4, min(y1 - fh, max(y0, int(yl - fhdelta))))
Label(loc,
font=font,
fontcolor=self.fontcolor,
value=legend)
yl -= dy
ptr_y = round(y1 - self._value *
(height - 1)) # y position of top of bar
if self.ptr_y is None:
tft.fill_rectangle(x0 + tl, y0 + 1, x1 - tl, y1 - 1, self.bgcolor)
self.ptr_y = y1
if ptr_y < self.ptr_y: # Bar has moved up
tft.fill_rectangle(x0 + tl, ptr_y, x1 - tl, self.ptr_y,
self.barcolor)
elif ptr_y > self.ptr_y: # Moved down, blank the area
tft.fill_rectangle(x0 + tl, ptr_y, x1 - tl, self.ptr_y,
self.bgcolor)
self.ptr_y = ptr_y
def source(x, y, cb=lambda *_: None): # Source radiobuttons
rb = RadioButtons(BLUE, cb)
for t in (('1', 'Radio'), ('2', 'CD'), ('3', 'Vinyl'), ('4', 'TV')):
button = rb.add_button((x, y),
font=font14,
fontcolor=WHITE,
shape=CIRCLE,
fgcolor=(0, 0, 90),
height=40,
width=40,
text=t[0])
Label((x + 50, y + 10), font=font14, value=t[1])
y += 55
def geq(x, y): # Graphic equaliser
fr = ('25Hz', '50Hz', '100Hz', '200Hz', '400Hz', '800Hz', '1.5KHz', '3KHz',
'6KHz', '12KHz')
table = {
'fontcolor': WHITE,
'legends': ('-20', '0', '20'),
'font': font10,
'fgcolor': GREEN,
'value': 0.5,
}
sliders = []
for freq in fr:
sliders.append(Slider((x, y), **table))
Label((x, y + 210), font=font10, value=freq)
x += 80
return sliders
def __init__(self):
super().__init__()
# Common args for the labels
labels = {
'width': 75,
'fontcolor': WHITE,
'border': 2,
'fgcolor': RED,
'bgcolor': (0, 40, 0),
}
# Common arguments for all three sliders
table = {
'fontcolor': WHITE,
'legends': ('0', '5', '10'),
}
backbutton(390, 242)
fwdbutton(0, 242, BackScreen)
self.lstlbl = []
for n in range(3):
self.lstlbl.append(Label((80 * n, 215), font=font10, **labels))
y = 5
self.slave1 = Slider((80, y),
font=font10,
fgcolor=GREEN,
cb_end=self.callback,
cbe_args=('Slave1', ),
cb_move=self.slave_moved,
cbm_args=(1, ),
**table)
self.slave2 = Slider((160, y),
font=font10,
fgcolor=GREEN,
cb_end=self.callback,
cbe_args=('Slave2', ),
cb_move=self.slave_moved,
cbm_args=(2, ),
**table)
master = Slider((0, y),
font=font10,
fgcolor=YELLOW,
cb_end=self.callback,
cbe_args=('Master', ),
cb_move=self.master_moved,
cbm_args=(0, ),
value=0.5,
border=2,
**table)
def show(self):
tft = self.tft
# Blank slot, ticks and slider
tft.fill_rectangle(
self.x0, self.y0, self.x1, self.y1,
self.bgcolor) # Blank and redraw slot, ticks and slider
self.redraw = False
x = self.slot_x0
y = self.y0
if self.divisions > 0:
dx = self.slot_len / (self.divisions) # Tick marks
ys = y + 1
ye = y + self.dy - 1
for tick in range(self.divisions + 1):
xpos = int(x + dx * tick)
tft.draw_line(xpos, ys, xpos, ye, self.fgcolor)
# Blank and redraw slot
tft.fill_rectangle(self.slot_x0, self.slot_y0, self.slot_x1,
self.slot_y1, self.bgcolor)
tft.draw_rectangle(self.slot_x0, self.slot_y0, self.slot_x1,
self.slot_y1, self.fgcolor)
# Legends: if redrawing, they are already on the Screen's display list
if self.legends is not None and not self.drawn:
if len(self.legends) <= 1:
dx = 0
else:
dx = self.slot_len / (len(self.legends) - 1)
xl = x
font = self.font
bw = self.border
for legend in self.legends:
offset = tft.get_stringsize(legend, font)[0] / 2
loc = int(xl - offset), y - font.height() - bw - 1
Label(loc, font=font, fontcolor=self.fontcolor, value=legend)
xl += dx
if self._value is None:
self.value(self._initial_value, show=False) # prevent recursion
self.slide_x = self.slide_x0 + self._value * self.slot_len
color = self.slidecolor if self.slidecolor is not None else self.fgcolor
tft.fill_rectangle(self.slide_x, self.slide_y0,
self.slide_x + self.slidewidth, self.slide_y1,
color)
self.drawn = True
def show(self):
tft = self.tft
# Blank slot, ticks and slider
tft.fill_rectangle(self.x0, self.y0, self.x1, self.y1, self.bgcolor)
self.redraw = False
x = self.x0
y = self.slot_y0
slot_len = self.slot_len # Height of slot
if self.divisions > 0:
dy = slot_len / (self.divisions) # Tick marks
xs = x + 1
xe = x + self.dx - 1
for tick in range(self.divisions + 1):
ypos = int(y + dy * tick)
tft.draw_line(xs, ypos, xe, ypos, self.fgcolor)
# Blank and redraw slot
tft.fill_rectangle(self.slot_x0, self.slot_y0, self.slot_x1,
self.slot_y1, self.bgcolor)
tft.draw_rectangle(self.slot_x0, self.slot_y0, self.slot_x1,
self.slot_y1, self.fgcolor)
# Legends: if redrawing, they are already on the Screen's display list
if self.legends is not None and not self.drawn:
if len(self.legends) <= 1:
dy = 0
else:
dy = slot_len / (len(self.legends) - 1)
yl = y + slot_len # Start at bottom
fhdelta = self.font.height() / 2
font = self.font
for legend in self.legends:
loc = (x + self.width, int(yl - fhdelta))
Label(loc, font=font, fontcolor=self.fontcolor, value=legend)
yl -= dy
if self._value is None:
self.value(self._initial_value, show=False) # Prevent recursion
self.slide_y = self.slide_y0 - self._value * self.slot_len
color = self.slidecolor if self.slidecolor is not None else self.fgcolor
tft.fill_rectangle(self.slide_x0, self.slide_y, self.slide_x1,
self.slide_y + self.slideheight, color)
self.drawn = True
def __init__(self):
super().__init__()
Label((0, 0), font=font10, value='Plot module demonstrator.')
y = 30
dy = 42
fwdbutton(0, y, Tseq, 'TSeq')
Label((75, y + 5), font=font10, value='Time sequence demo.')
y += dy
fwdbutton(0, y, PolarScreen, 'Polar')
Label((75, y + 5), font=font10, value='A polar plot.')
y += dy
fwdbutton(0, y, XYScreen, 'XY')
Label((75, y + 5), font=font10, value='Cartesian plot.')
y += dy
fwdbutton(0, y, RealtimeScreen, 'RT')
Label((75, y + 5), font=font10, value='Realtime demo.')
y += dy
fwdbutton(0, y, PolarORScreen, 'Over')
Label((75, y + 5), font=font10, value='Two demos of clipping.')
y += dy
fwdbutton(0, y, DiscontScreen, 'Lines')
quitbutton()
class BaseScreen(Screen):
def __init__(self):
super().__init__()
# Scale with custom variable and legends.
Label((0, 0), font=font14, value='FM radio scale 88-108MHz.')
def legendcb(f):
return '{:2.0f}'.format(88 + ((f + 1) / 2) * (108 - 88))
self.scale = Scale((0, 30),
font10,
legendcb=legendcb,
width=350,
height=60,
bgcolor=BLACK,
fgcolor=GREEN,
pointercolor=RED,
fontcolor=YELLOW)
self.reg_task(self.radio())
# Scale with varying color.
Label((0, 130),
font=font14,
value='Default scale -1 to +1, varying colors.')
def tickcb(f, c):
if f > 0.8:
return RED
if f < -0.8:
return BLUE
return c
self.lbl_result = Label((0, 240),
font=font14,
fontcolor=WHITE,
width=70,
border=2,
fgcolor=RED,
bgcolor=DARKGREEN)
self.scale1 = Scale((0, 160),
font10,
tickcb=tickcb,
width=350,
height=60,
bgcolor=BLACK,
fgcolor=GREEN,
pointercolor=RED,
fontcolor=YELLOW)
self.reg_task(self.default())
quitbutton(390, 242)
# COROUTINES
async def radio(self):
cv = 88.0 # Current value
val = 108.0 # Target value
while True:
v1, v2 = val, cv
steps = 200
delta = (val - cv) / steps
for _ in range(steps):
cv += delta
# Map user variable to -1.0..+1.0
self.scale.value(2 * (cv - 88) / (108 - 88) - 1)
await asyncio.sleep_ms(200)
val, cv = v2, v1
async def default(self):
cv = -1.0 # Current
val = 1.0
while True:
v1, v2 = val, cv
steps = 400
delta = (val - cv) / steps
for _ in range(steps):
cv += delta
self.scale1.value(cv)
self.lbl_result.value('{:4.3f}'.format(cv))
await asyncio.sleep_ms(250)
val, cv = v2, v1
def __init__(self):
super().__init__()
Label((0, 0), font=font14, value='Ensure back refreshes properly')
backbutton(390, 242)
self.open_arg = 'Opening'
self.hide_arg = 'Hiding'
def __init__(self):
super().__init__()
labels = {
'width': 70,
'fontcolor': WHITE,
'border': 2,
'fgcolor': RED,
'bgcolor': (0, 40, 0),
'font': font14,
}
radiobuttons = [
{
'text': '1',
'args': ['1']
},
{
'text': '2',
'args': ['2']
},
{
'text': '3',
'args': ['3']
},
{
'text': '4',
'args': ['4']
},
]
buttonlist = [
{
'fgcolor': GREEN,
'shape': CLIPPED_RECT,
'text': 'Start',
'args': ['Live']
},
{
'fgcolor': RED,
'shape': CLIPPED_RECT,
'text': 'Stop',
'args': ['Die']
},
]
backbutton(390, 242)
fwdbutton(0, 242, BackScreen)
lstlbl = []
for n in range(4):
lstlbl.append(Label((350, 40 * n), **labels))
self.led = LED((440, 0), border=2)
Checkbox((300, 0), callback=self.cbcb, args=[lstlbl[0], False])
Checkbox((300, 40),
fillcolor=RED,
callback=self.cbcb,
args=[lstlbl[1], True])
# On/Off toggle
x = 1
bs = ButtonList(self.callback)
bs0 = None
for t in buttonlist: # Buttons overlay each other at same location
t['args'].append(lstlbl[2])
button = bs.add_button((x, 120),
font=font14,
height=30,
fontcolor=BLACK,
**t)
if bs0 is None:
bs0 = button
# Radio buttons
x = 1
rb = RadioButtons(BLUE, self.callback) # color of selected button
for t in radiobuttons:
t['args'].append(lstlbl[3])
button = rb.add_button((x, 180),
font=font14,
fontcolor=WHITE,
fgcolor=(0, 0, 90),
height=40,
width=40,
**t)
x += 60
def __init__(self):
super().__init__()
Label((0, 0), font=font10, value='Refresh test')
backbutton()
def __init__(self):
super().__init__()
# Scale 0
Label((0, 0), font=font14, value='Default scale 5 decades.')
lbl_result0 = Label((0, 240), **labels)
# Define callbacks for scale 0
def legendcb(f):
if f < 999:
return '{:<1.0f}'.format(f)
return '{:<1.0f}K'.format(f / 1000)
def scale_move0(scale):
sv = scale.value()
lbl_result0.value('{:6.2f}'.format(sv))
self.scale1.value(
scale.value()) # Cause lower scale to mimic this one
self.scale0 = ScaleLog((0, 30),
legendcb=legendcb,
value=15,
cb_move=scale_move0,
**scales)
# Scale 1 with varying color.
Label((0, 130),
font=font14,
value='Varying colors, follows top scale.')
lbl_result1 = Label((200, 240), **labels)
# Define callbacks for scale 1
def tickcb(f, c):
if f > 30000:
return RED
if f < 10:
return BLUE
return c
def scale_move1(scale):
sv = scale.value()
lbl_result1.value('{:6.2f}'.format(sv))
self.scale1 = ScaleLog((0, 160),
tickcb=tickcb,
cb_move=scale_move1,
**scales)
# Define buttons
x = 390
y = 242
backbutton(x, y)
y -= 50
Button((x, y),
fgcolor=GREEN,
text='Enable',
callback=self.en,
**buttons)
y -= 50
Button((x, y),
fgcolor=YELLOW,
text='Disable',
callback=self.dis,
**buttons)
y -= 50
Button((x, y),
fgcolor=BLUE,
text='Reset',
callback=lambda _: self.scale1.value(1),
**buttons)
def __init__(self):
super().__init__()
# Scale 0 with custom variable and legends.
Label((0, 0), font=font14, value='FM radio scale 88-108MHz.')
lbl_result0 = Label((0, 240), **labels)
# Define callbacks for scale 0
def legendcb(f):
return '{:2.0f}'.format(88 + ((f + 1) / 2) * (108 - 88))
def scale_move0(scale):
sv = scale.value()
sv = (sv + 1) / 2 # 0 <= sv <= 1
lbl_result0.value('{:6.2f}'.format(sv * (108 - 88) + 88))
self.scale0 = ScaleCtrl((0, 30),
legendcb=legendcb,
cb_move=scale_move0,
**scales)
# Scale 1 with varying color.
Label((0, 130),
font=font14,
value='Default scale -1 to +1, varying colors.')
lbl_result1 = Label((200, 240), **labels)
# Define callbacks for scale 1
def tickcb(f, c):
if f > 0.8:
return RED
if f < -0.8:
return BLUE
return c
def scale_move1(scale):
sv = scale.value()
lbl_result1.value('{:4.3f}'.format(sv))
self.scale1 = ScaleCtrl((0, 160),
tickcb=tickcb,
cb_move=scale_move1,
**scales)
# Define buttons
x = 390
y = 242
backbutton(x, y)
#Button((x, y), fgcolor = RED, text = 'Quit',
#callback = lambda _: Screen.shutdown(), **buttons)
y -= 50
Button((x, y),
fgcolor=GREEN,
text='Enable',
callback=self.en,
**buttons)
y -= 50
Button((x, y),
fgcolor=YELLOW,
text='Disable',
callback=self.dis,
**buttons)
y -= 50
Button((x, y),
fgcolor=BLUE,
text='Zero',
callback=lambda _: self.scale1.value(0),
**buttons)
def __init__(self):
super().__init__()
Button((390, 240),
font=IFONT16,
callback=self.quit,
fgcolor=RED,
text='Quit',
shape=RECTANGLE,
width=80,
height=30)
dial = VectorDial((120, 0), fgcolor=YELLOW, border=2)
hrs = Pointer(dial)
mins = Pointer(dial)
k0 = Knob((0, 0),
fgcolor=GREEN,
bgcolor=(0, 0, 80),
color=(168, 63, 63),
border=2,
cb_end=self.callback,
cbe_args=['Knob1'],
cb_move=self.knob_moved,
cbm_args=(mins, 0.9))
k1 = Knob((0, 120),
fgcolor=WHITE,
border=2,
arc=pi * 1.5,
cb_end=self.callback,
cbe_args=['Knob2'],
cb_move=self.knob_moved,
cbm_args=(hrs, 0.7))
Label((0, 225), font=font10, value='Arc = 270 degs.')
# Dropdown
self.lbl_dd = Label((120, 120),
font=IFONT16,
width=100,
border=2,
bgcolor=(0, 40, 0),
fgcolor=RED)
self.dropdown = Dropdown(
(280, 0),
font=IFONT16,
width=100,
callback=self.cbdb,
elements=('Dog', 'Cat', 'Rat', 'Goat', 'Snake', 'Pig'))
btnrst = Button((280, 70),
font=IFONT16,
callback=self.set_dropdown,
fgcolor=BLUE,
text='Reset',
shape=RECTANGLE,
width=80,
height=30) # Test of set by value
btnsnake = Button((280, 120),
font=IFONT16,
callback=self.set_bytext,
args=('Snake', ),
fgcolor=CYAN,
fontcolor=BLACK,
text='Snake',
shape=RECTANGLE,
width=80,
height=30) # test set by text
# Listbox
self.lbl_lb = Label((120, 150),
font=IFONT16,
width=100,
border=2,
bgcolor=(0, 40, 0),
fgcolor=RED)
listbox = Listbox(
(370, 70),
font=IFONT16,
width=105,
bgcolor=GREY,
fgcolor=YELLOW,
select_color=BLUE,
elements=('aardvark', 'zebra', 'armadillo', 'warthog'),
callback=self.cblb)
# On/Off toggle grey style
self.lbl_style = Label((170, 210),
font=font10,
value='Current style: grey')
bstyle = ButtonList(self.cb_style)
bstyle.add_button((170, 240),
font=IFONT16,
fontcolor=WHITE,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Dim',
args=(False, ))
bstyle.add_button((170, 240),
font=IFONT16,
fontcolor=WHITE,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Grey',
args=(True, ))
# On/Off toggle enable/disable
bs = ButtonList(self.cb_en_dis)
self.lst_en_dis = (bstyle, k0, k1, self.dropdown, listbox, btnrst,
btnsnake)
bs.add_button((280, 240),
font=IFONT16,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Disable',
args=(True, ))
bs.add_button((280, 240),
font=IFONT16,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Enable',
args=(False, ))
def __init__(self):
super().__init__()
# Common args for the labels
labels = {
'width': 60,
'fontcolor': WHITE,
'border': 2,
'fgcolor': RED,
'bgcolor': (0, 40, 0),
}
# Common args for all three sliders
table = {
'fontcolor': WHITE,
'legends': ('0', '5', '10'),
'cb_end': self.callback,
}
btnquit = Button((390, 240),
font=font14,
callback=quit,
fgcolor=RED,
text='Quit',
shape=RECTANGLE,
width=80,
height=30)
self.dial1 = Dial((350, 10),
fgcolor=YELLOW,
border=2,
pointers=(0.9, 0.7))
self.dial2 = Dial((350, 120),
fgcolor=YELLOW,
border=2,
pointers=(0.9, 0.7))
self.lstlbl = []
for n in range(3):
self.lstlbl.append(Label((80 * n, 240), font=font10, **labels))
y = 5
self.slave1 = Slider((80, y),
font=font10,
fgcolor=GREEN,
cbe_args=('Slave1', ),
cb_move=self.slave_moved,
cbm_args=(1, ),
**table)
self.slave2 = Slider((160, y),
font=font10,
fgcolor=GREEN,
cbe_args=('Slave2', ),
cb_move=self.slave_moved,
cbm_args=(2, ),
**table)
master = Slider((0, y),
font=font10,
fgcolor=YELLOW,
cbe_args=('Master', ),
cb_move=self.master_moved,
value=0.5,
border=2,
**table)
self.reg_task(self.task1())
self.reg_task(self.task2())
# On/Off toggle: enable/disable quit button and one slider
bs = ButtonList(self.cb_en_dis)
lst_en_dis = [self.slave1, btnquit]
button = bs.add_button((280, 240),
font=font14,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Disable',
args=[True, lst_en_dis])
button = bs.add_button((280, 240),
font=font14,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Enable',
args=[False, lst_en_dis])
def __init__(self):
super().__init__()
# These tables contain args that differ between members of a set of related buttons
table = [
{
'fgcolor': GREEN,
'text': 'Yes',
'args': ('Oui', 2),
'fontcolor': (0, 0, 0)
},
{
'fgcolor': RED,
'text': 'No',
'args': ('Non', 2)
},
{
'fgcolor': BLUE,
'text': '???',
'args': ('Que?', 2)
}, # 'fill': False to see effect
{
'fgcolor': GREY,
'text': 'Rats',
'args': ('Rats', 2)
},
]
# Highlight buttons: only tabulate data that varies
table_highlight = [
{
'text': 'P',
'args': ('p', 2)
},
{
'text': 'Q',
'args': ('q', 2)
},
{
'text': 'R',
'args': ('r', 2)
},
{
'text': 'S',
'args': ('s', 2)
},
]
# A Buttonset with two entries
table_buttonset = [
{
'fgcolor': GREEN,
'shape': CLIPPED_RECT,
'text': 'Start',
'args': ('Live', 2)
},
{
'fgcolor': RED,
'shape': CLIPPED_RECT,
'text': 'Stop',
'args': ('Die', 2)
},
]
table_radiobuttons = [
{
'text': '1',
'args': ('1', 3)
},
{
'text': '2',
'args': ('2', 3)
},
{
'text': '3',
'args': ('3', 3)
},
{
'text': '4',
'args': ('4', 3)
},
]
labels = {
'width': 70,
'fontcolor': WHITE,
'border': 2,
'fgcolor': RED,
'bgcolor': (0, 40, 0),
'font': font14,
}
# Uncomment this line to see 'skeleton' style greying-out:
# Screen.tft.grey_color()
# Labels
self.lstlbl = []
for n in range(5):
self.lstlbl.append(Label((390, 40 * n), **labels))
self.lst_en_dis = [] # Controls affected by disable button.
# Button assortment
x = 0
for t in table:
self.lst_en_dis.append(
Button((x, 0),
font=font14,
shape=CIRCLE,
callback=self.callback,
**t))
x += 70
# Highlighting buttons
x = 0
for t in table_highlight:
self.lst_en_dis.append(
Button((x, 60),
fgcolor=CYAN,
shape=CIRCLE,
fontcolor=BLACK,
litcolor=WHITE,
font=font14,
callback=self.callback,
**t))
x += 70
# Pad
lbl_pad = Label((0, 200),
value='touch me',
fontcolor=WHITE,
border=2,
fgcolor=RED,
bgcolor=DARKGREEN,
font=font14)
pad = Pad((0, 200),
width=lbl_pad.width,
height=lbl_pad.height,
onrelease=False,
callback=lambda _: lbl_pad.value('Short'),
lp_callback=lambda _: lbl_pad.value('Long'))
self.lst_en_dis.append(pad)
# Start/Stop toggle
self.bs = ButtonList(self.callback)
self.bs0 = None
for t in table_buttonset: # Buttons overlay each other at same location
button = self.bs.add_button((0, 240),
font=font14,
fontcolor=BLACK,
height=30,
**t)
if self.bs0 is None: # Save for reset button callback
self.bs0 = button
self.lst_en_dis.append(self.bs)
# Radio buttons
x = 0
self.rb = RadioButtons(BLUE, self.callback) # color of selected button
self.rb0 = None
for t in table_radiobuttons:
button = self.rb.add_button((x, 140),
font=font14,
fontcolor=WHITE,
fgcolor=(0, 0, 90),
height=40,
width=40,
**t)
if self.rb0 is None: # Save for reset button callback
self.rb0 = button
x += 60
self.lst_en_dis.append(self.rb)
# Checkbox
self.cb1 = Checkbox((340, 0), callback=self.cbcb, args=(0, ))
self.cb2 = Checkbox((340, 40),
fillcolor=RED,
callback=self.cbcb,
args=(1, ))
self.lst_en_dis.extend([self.cb1, self.cb2])
# Reset button
self.lbl_reset = Label((200, 210),
font=font10,
value='Reset also responds to long press')
self.btn_reset = Button((300, 240),
font=font14,
height=30,
width=80,
fgcolor=BLUE,
shape=RECTANGLE,
text='Reset',
fill=True,
callback=self.cbreset,
args=(4, ),
onrelease=False,
lp_callback=self.callback,
lp_args=('long', 4))
# Quit
self.btn_quit = Button((390, 240),
font=font14,
height=30,
width=80,
fgcolor=RED,
shape=RECTANGLE,
text='Quit',
callback=self.quit)
# Enable/Disable toggle
self.bs_en = ButtonList(self.cb_en_dis)
self.bs_en.add_button((200, 240),
font=font14,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Disable',
args=(True, ))
self.bs_en.add_button((200, 240),
font=font14,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Enable',
args=(False, ))
class KnobScreen(Screen):
def __init__(self):
super().__init__()
Button((390, 240),
font=IFONT16,
callback=self.quit,
fgcolor=RED,
text='Quit',
shape=RECTANGLE,
width=80,
height=30)
dial = VectorDial((120, 0), fgcolor=YELLOW, border=2)
hrs = Pointer(dial)
mins = Pointer(dial)
k0 = Knob((0, 0),
fgcolor=GREEN,
bgcolor=(0, 0, 80),
color=(168, 63, 63),
border=2,
cb_end=self.callback,
cbe_args=['Knob1'],
cb_move=self.knob_moved,
cbm_args=(mins, 0.9))
k1 = Knob((0, 120),
fgcolor=WHITE,
border=2,
arc=pi * 1.5,
cb_end=self.callback,
cbe_args=['Knob2'],
cb_move=self.knob_moved,
cbm_args=(hrs, 0.7))
Label((0, 225), font=font10, value='Arc = 270 degs.')
# Dropdown
self.lbl_dd = Label((120, 120),
font=IFONT16,
width=100,
border=2,
bgcolor=(0, 40, 0),
fgcolor=RED)
self.dropdown = Dropdown(
(280, 0),
font=IFONT16,
width=100,
callback=self.cbdb,
elements=('Dog', 'Cat', 'Rat', 'Goat', 'Snake', 'Pig'))
btnrst = Button((280, 70),
font=IFONT16,
callback=self.set_dropdown,
fgcolor=BLUE,
text='Reset',
shape=RECTANGLE,
width=80,
height=30) # Test of set by value
btnsnake = Button((280, 120),
font=IFONT16,
callback=self.set_bytext,
args=('Snake', ),
fgcolor=CYAN,
fontcolor=BLACK,
text='Snake',
shape=RECTANGLE,
width=80,
height=30) # test set by text
# Listbox
self.lbl_lb = Label((120, 150),
font=IFONT16,
width=100,
border=2,
bgcolor=(0, 40, 0),
fgcolor=RED)
listbox = Listbox(
(370, 70),
font=IFONT16,
width=105,
bgcolor=GREY,
fgcolor=YELLOW,
select_color=BLUE,
elements=('aardvark', 'zebra', 'armadillo', 'warthog'),
callback=self.cblb)
# On/Off toggle grey style
self.lbl_style = Label((170, 210),
font=font10,
value='Current style: grey')
bstyle = ButtonList(self.cb_style)
bstyle.add_button((170, 240),
font=IFONT16,
fontcolor=WHITE,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Dim',
args=(False, ))
bstyle.add_button((170, 240),
font=IFONT16,
fontcolor=WHITE,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Grey',
args=(True, ))
# On/Off toggle enable/disable
bs = ButtonList(self.cb_en_dis)
self.lst_en_dis = (bstyle, k0, k1, self.dropdown, listbox, btnrst,
btnsnake)
bs.add_button((280, 240),
font=IFONT16,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Disable',
args=(True, ))
bs.add_button((280, 240),
font=IFONT16,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Enable',
args=(False, ))
# CALLBACKS
# cb_end occurs when user stops touching the control
def callback(self, knob, control_name):
print('{} returned {}'.format(control_name, knob.value()))
def knob_moved(self, knob, pointer, length):
val = knob.value() # range 0..1
pointer.value(length * cmath.exp(-2j * val * pi))
def quit(self, button):
Screen.shutdown()
def cb_en_dis(self, button, disable):
for item in self.lst_en_dis:
item.greyed_out(disable)
def cb_style(self, button, desaturate):
self.lbl_style.value(''.join(
('Current style: ', 'grey' if desaturate else 'dim')))
Screen.set_grey_style(desaturate=desaturate)
def cbdb(self, dropdown):
self.lbl_dd.value(dropdown.textvalue())
def cblb(self, listbox):
self.lbl_lb.value(listbox.textvalue())
def set_dropdown(self, button):
self.dropdown.value(0)
def set_bytext(self, button, txt):
self.dropdown.textvalue(txt)
def passthru(x, y, items): # Passthru checkbox
Checkbox((x, y), callback=cb_en_dis, args=(items, ))
Label((x + 40, y), font=font14, value='Flat response')
