class VerticalSliderScreen(Screen):
def __init__(self):
super().__init__()
# Common args for the labels
labels = {
'width': 70,
'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=self.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)
Screen.objsched.add_thread(self.thread1())
Screen.objsched.add_thread(self.thread2())
# 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])
# CALLBACKS
# cb_end occurs when user stops touching the control
def callback(self, slider, device):
print('{} returned {}'.format(device, slider.value()))
def master_moved(self, slider):
val = slider.value()
self.slave1.value(val)
self.slave2.value(val)
self.lstlbl[0].value(to_string(val))
# Either slave has had its slider moved (by user or by having value altered)
def slave_moved(self, slider, idx):
val = slider.value()
self.lstlbl[idx].value(to_string(val))
def quit(self, button):
Screen.tft.clrSCR()
Screen.objsched.stop()
def cb_en_dis(self, button, disable, itemlist):
for item in itemlist:
item.greyed_out(disable)
# THREADS
def thread1(self):
angle = 0
yield
while True:
yield 0.1
delta = self.slave1.value()
angle += pi * 2 * delta / 10
self.dial1.value(angle)
self.dial1.value(angle / 10, 1)
def thread2(self):
angle = 0
yield
while True:
yield 0.1
delta = self.slave2.value()
angle += pi * 2 * delta / 10
self.dial2.value(angle)
self.dial2.value(angle / 10, 1)
class KnobScreen(Screen):
def __init__(self):
super().__init__()
Button((390, 240),
font=font14,
callback=self.quit,
fgcolor=RED,
text='Quit',
shape=RECTANGLE,
width=80,
height=30)
self.dial = Dial((120, 0),
fgcolor=YELLOW,
border=2,
pointers=(0.9, 0.7))
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=(0, ))
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=(1, ))
# Dropdown
self.lbl_dd = Label((120, 120),
font=font14,
width=100,
border=2,
bgcolor=(0, 40, 0),
fgcolor=RED)
self.dropdown = Dropdown(
(280, 0),
font=font14,
width=100,
callback=self.cbdb,
elements=('Dog', 'Cat', 'Rat', 'Goat', 'Snake', 'Pig'))
Button((280, 70),
font=font14,
callback=self.set_dropdown,
fgcolor=BLUE,
text='Reset',
shape=RECTANGLE,
width=80,
height=30) # Test of set by value
Button((280, 120),
font=font14,
callback=self.set_bytext,
args=('Snake', ),
fgcolor=CYAN,
fontcolor=BLACK,
text='Snake',
shape=RECTANGLE,
width=80,
height=30) # test set by text
# Listbox
self.listbox = Listbox(
(370, 70),
font=font14,
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=font14,
fontcolor=WHITE,
height=30,
width=90,
fgcolor=RED,
shape=RECTANGLE,
text='Dim',
args=(False, ))
bstyle.add_button((170, 240),
font=font14,
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, self.listbox)
bs.add_button((280, 240),
font=font14,
fontcolor=BLACK,
height=30,
width=90,
fgcolor=GREEN,
shape=RECTANGLE,
text='Disable',
args=(True, ))
bs.add_button((280, 240),
font=font14,
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):
val = knob.value() # range 0..1
self.dial.value(2 * (val - 0.5) * pi, pointer)
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):
print(listbox.textvalue())
def set_dropdown(self, button):
self.dropdown.value(0)
def set_bytext(self, button, txt):
self.dropdown.textvalue(txt)
class KnobScreen(Screen):
def __init__(self):
super().__init__()
Button((390, 240), font = font14, callback = self.quit, fgcolor = RED,
text = 'Quit', shape = RECTANGLE, width = 80, height = 30)
self.dial = Dial((120, 0), fgcolor = YELLOW, border = 2, pointers = (0.9, 0.7))
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 = (0,))
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 = (1,))
# Dropdown
self.lbl_dd = Label((120, 120), font = font14, width = 100, border = 2, bgcolor = (0, 40, 0), fgcolor = RED)
self.dropdown = Dropdown((280, 0), font = font14, width = 100, callback = self.cbdb,
elements = ('Dog', 'Cat', 'Rat', 'Goat', 'Snake', 'Pig'))
Button((280, 70), font = font14, callback = self.set_dropdown, fgcolor = BLUE,
text = 'Reset', shape = RECTANGLE, width = 80, height = 30) # Test of set by value
Button((280, 120), font = font14, callback = self.set_bytext, args = ('Snake',), fgcolor = CYAN,
fontcolor = BLACK, text = 'Snake', shape = RECTANGLE, width = 80, height = 30) # test set by text
# Listbox
self.listbox = Listbox((370, 70), font = font14, 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 = font14, fontcolor = WHITE, height = 30, width = 90,
fgcolor = RED, shape = RECTANGLE, text = 'Dim', args = (False,))
bstyle.add_button((170, 240), font = font14, 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, self.listbox)
bs.add_button((280, 240), font = font14, fontcolor = BLACK, height = 30, width = 90,
fgcolor = GREEN, shape = RECTANGLE, text = 'Disable', args = (True,))
bs.add_button((280, 240), font = font14, 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):
val = knob.value() # range 0..1
self.dial.value(2 * (val - 0.5) * pi, pointer)
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):
print(listbox.textvalue())
def set_dropdown(self, button):
self.dropdown.value(0)
def set_bytext(self, button, txt):
self.dropdown.textvalue(txt)