def update_theme(self, var, index, mode):
"""
A callback function on the variable observer. Update existing theme if existing, otherwise, create a new theme
and apply to app
:param var: the name of the tkinter variable observed
:param index: the index of the item (if an array)
:param mode: the mode of the trace observer
"""
theme_id = str(uuid.uuid4(
)) # a unique (and temporary) identifier for the new theme
self.update_selector_image()
try:
colors = Colors(primary=self.getvar('primary'),
secondary=self.getvar('secondary'),
success=self.getvar('success'),
info=self.getvar('info'),
warning=self.getvar('warning'),
danger=self.getvar('danger'),
fg=self.getvar('fg'),
bg=self.getvar('bg'),
selectfg=self.getvar('selectfg'),
selectbg=self.getvar('selectbg'),
border=self.getvar('border'),
inputfg=self.getvar('inputfg'),
inputbg=self.getvar('inputbg'))
except Exception:
return
try:
self.style.register_theme(
ThemeDefinition(name=theme_id,
themetype=self.getvar('type'),
font=self.getvar('font'),
colors=colors))
# # attach the new theme to the style so that it is not garbage collected!!
# self.new_style = StylerTTK(self.style, definition)
self.style.theme_use(themename=theme_id)
except Exception:
return
def __init__(self, parent, **kwargs):
excluded = [
'anchor', 'theme', 'image', 'compound', 'relief', 'bordwidth',
'maximum', 'value', 'variable', 'indicatorcolor', 'troughcolor',
'textvariable', 'angle'
]
kwargs_ = {k: v for k, v in kwargs.items() if k not in excluded}
self.style = kwargs.get('style') or 'primary.TLabel'
super().__init__(parent,
class_='RadialGauge',
style=self.style,
**kwargs_)
self.indicatorcolor = kwargs.get('indicatorcolor') or self._lookup(
self.style, 'foreground')
self.indicatorthickness = kwargs.get('indicatorthickness') or 20
self.troughcolor = kwargs.get('troughcolor') or Colors.update_hsv(
self._lookup('TCombobox', 'background'), vd=-0.03)
self.size = kwargs.get('size') or 200
self.startangle = kwargs.get('angle') or 90
self.im = Image.new('RGBA', (self.size, self.size))
self.arc = ImageTk.PhotoImage(self.im)
self.textvariable = kwargs.get('textvariable') or tk.StringVar(
value=kwargs.get('text'))
self.configure(textvariable=self.textvariable)
self.variable = kwargs.get('variable') or tk.IntVar(
value=kwargs.get('value'))
self.variable.trace_add('write', self.update_indicator)
self.maximum = 100 if kwargs.get('maximum') == None or kwargs.get(
'maximum') <= 0 else kwargs.get('maximum')
self.is_maximum = False
self.configure(compound='center', anchor='center', image=self.arc)
self.bind('<Configure>', self.resize)
def weekday_header(self):
"""Returns a list of weekdays to be used as a header in the calendar based on the firstweekday"""
weekdays = ['Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa', 'Su']
return weekdays[self.firstweekday:] + weekdays[:self.firstweekday]
if __name__ == '__main__':
# TODO setup the styling in the __init__ file, and setup the class so that it can be easilily modified.
# TODO add documentation to all classes and methods.
# TODO reduce the padding on the DateEntry button for dark themes to account for the removed border on dark
# theme entry widgets.
style = Style('lumen')
pressed_vd = -0.2
disabled_bg = (Colors.update_hsv(style.colors.inputbg, vd=-0.2) if style.theme.type == 'light' else
Colors.update_hsv(style.colors.inputbg, vd=-0.3))
style.configure('calendar.primary.Outline.Toolbutton',
lightcolor=style.colors.bg,
darkcolor=style.colors.bg,
bordercolor=style.colors.bg)
style.configure('exit.primary.TButton',
relief='flat',
font='helvetica 12')
style.configure('chevron.primary.TButton', font='helvetica 14')
style.map('exit.primary.TButton',
background=[
('disabled', disabled_bg),
('pressed', '!disabled', Colors.update_hsv(style.colors.primary, vd=pressed_vd)),
('hover', '!disabled', style.colors.danger)])
def __init__(self,
master=None,
arcrange=None,
arcoffset=None,
amounttotal=100,
amountused=0,
interactive=False,
labelfont='Helvetica 10 bold',
labelstyle='secondary.TLabel',
labeltext=None,
metersize=200,
meterstyle='primary.TLabel',
metertype='full',
meterthickness=10,
showvalue=True,
stripethickness=0,
textappend=None,
textfont='Helvetica 25 bold',
textprepend=None,
wedgesize=0,
**kw):
"""
Args:
master (Widget): Parent widget
arcoffset (int): The amount to offset the arc's starting position in degrees; 0 is at 3 o'clock.
arcrange (int): The range of the arc in degrees from start to end.
amounttotal (int): The maximum value of the meter.
amountused (int): The current value of the meter; displayed if ``showvalue=True``.
interactive (bool): Enables the meter to be adjusted with mouse interaction.
labelfont(Font or str): The font of the supplemental label.
labelstyle (str): The ttk style used to render the supplemental label.
labeltext (str): Supplemental label text that appears `below` the center text.
metersize (int): The size of the meter; represented by one side length of a square.
meterstyle (str): The ttk style used to render the meter and center text.
metertype (str): One of **full** or **semi**; displays a full-circle or semi-circle.
meterthickness (int): The thickness of the meter's progress bar.
showvalue (bool): Show the meter's value in the center text; default = True.
stripethickness (int): The meter's progress bar can be displayed in solid or striped form. If the value is
greater than 0, the meter's progress bar changes from a solid to striped, where the value is the
thickness of the stripes.
textappend (str): A short string appended to the center text.
textfont (Font or str): The font of the center text.
textprepend (str): A short string prepended to the center text.
wedgesize (int): If greater than zero, the width of the wedge on either side of the current meter value.
"""
super().__init__(master=master, **kw)
self.box = ttk.Frame(self, width=metersize, height=metersize)
if metertype == 'semi':
self.arcoffset = arcoffset if arcoffset is not None else 135
self.arcrange = arcrange if arcrange is not None else 270
else: # aka 'full'
self.arcoffset = arcoffset if arcoffset is not None else -90
self.arcrange = arcrange if arcrange is not None else 360
# widget variables
self.amountusedvariable = IntVar(value=amountused)
self.amounttotalvariable = IntVar(value=amounttotal)
self.labelvariable = StringVar(value=labeltext)
self.amountusedvariable.trace_add('write', self.draw_meter)
# misc widget settings
self.towardsmaximum = True
self.metersize = metersize
self.meterthickness = meterthickness
self.stripethickness = stripethickness
self.showvalue = showvalue
self.wedgesize = wedgesize
# translate system colors if a ttkbootstrap style is not used
if 'system' in self.lookup(meterstyle, 'foreground').lower():
self.meterforeground = self.convert_system_color(
self.lookup(meterstyle, 'foreground'))
else:
self.meterforeground = self.lookup(meterstyle, 'foreground')
if 'system' in self.lookup(meterstyle, 'background').lower():
self.meterbackground = Colors.update_hsv(self.convert_system_color(
self.lookup(meterstyle, 'background')),
vd=-0.1)
else:
self.meterbackground = Colors.update_hsv(self.lookup(
meterstyle, 'background'),
vd=-0.1)
# meter image
self.meter = ttk.Label(self.box)
self.draw_base_image()
self.draw_meter()
# text & label widgets
self.textcontainer = ttk.Frame(self.box)
self.textprepend = ttk.Label(self.textcontainer,
text=textprepend,
font=labelfont,
style=labelstyle)
self.textprepend.configure(anchor='s', padding=(0, 5))
self.text = ttk.Label(self.textcontainer,
textvariable=self.amountusedvariable,
style=meterstyle,
font=textfont)
self.textappend = ttk.Label(self.textcontainer,
text=textappend,
font=labelfont,
style=labelstyle)
self.textappend.configure(anchor='s', padding=(0, 5))
self.label = ttk.Label(self.box,
text=labeltext,
style=labelstyle,
font=labelfont)
# set interactive mode
if interactive:
self.meter.bind('<B1-Motion>', self.on_dial_interact)
self.meter.bind('<Button-1>', self.on_dial_interact)
# geometry management
self.meter.place(x=0, y=0)
self.box.pack()
if labeltext:
self.textcontainer.place(relx=0.5, rely=0.45, anchor='center')
else:
self.textcontainer.place(relx=0.5, rely=0.5, anchor='center')
if textprepend:
self.textprepend.pack(side='left', fill='y')
if showvalue:
self.text.pack(side='left', fill='y')
if textappend:
self.textappend.pack(side='left', fill='y')
self.label.place(relx=0.5, rely=0.6, anchor='center')