CustomTkinter/customtkinter/customtkinter_label.py

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import tkinter
import sys
from .customtkinter_tk import CTk
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from .customtkinter_frame import CTkFrame
from .appearance_mode_tracker import AppearanceModeTracker
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from .customtkinter_theme_manager import CTkThemeManager
from .customtkinter_canvas import CTkCanvas
from .customtkinter_settings import CTkSettings
from .customtkinter_draw_engine import CTkDrawEngine
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class CTkLabel(tkinter.Frame):
def __init__(self, *args,
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master=None,
bg_color=None,
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fg_color="default_theme",
text_color="default_theme",
corner_radius="default_theme",
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width=120,
height=25,
text="CTkLabel",
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text_font="default_theme",
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**kwargs):
if master is None:
super().__init__(*args)
else:
super().__init__(*args, master=master)
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# overwrite configure methods of master when master is tkinter widget, so that bg changes get applied on child CTk widget too
if isinstance(self.master, (tkinter.Tk, tkinter.Frame)) and not isinstance(self.master, (CTk, CTkFrame)):
master_old_configure = self.master.config
def new_configure(*args, **kwargs):
if "bg" in kwargs:
self.configure(bg_color=kwargs["bg"])
elif "background" in kwargs:
self.configure(bg_color=kwargs["background"])
# args[0] is dict when attribute gets changed by widget[<attribut>] syntax
elif len(args) > 0 and type(args[0]) == dict:
if "bg" in args[0]:
self.configure(bg_color=args[0]["bg"])
elif "background" in args[0]:
self.configure(bg_color=args[0]["background"])
master_old_configure(*args, **kwargs)
self.master.config = new_configure
self.master.configure = new_configure
AppearanceModeTracker.add(self.change_appearance_mode, self)
self.appearance_mode = AppearanceModeTracker.get_mode() # 0: "Light" 1: "Dark"
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self.bg_color = self.detect_color_of_master() if bg_color is None else bg_color
self.fg_color = CTkThemeManager.theme["color"]["label"] if fg_color == "default_theme" else fg_color
if self.fg_color is None:
self.fg_color = self.bg_color
self.text_color = CTkThemeManager.theme["color"]["text"] if text_color == "default_theme" else text_color
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self.width = width
self.height = height
self.corner_radius = CTkThemeManager.theme["shape"]["label_corner_radius"] if corner_radius == "default_theme" else corner_radius
if self.corner_radius * 2 > self.height:
self.corner_radius = self.height / 2
elif self.corner_radius * 2 > self.width:
self.corner_radius = self.width / 2
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self.text = text
self.text_font = (CTkThemeManager.theme["text"]["font"], CTkThemeManager.theme["text"]["size"]) if text_font == "default_theme" else text_font
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self.grid_rowconfigure(0, weight=1)
self.grid_columnconfigure(0, weight=1)
self.canvas = CTkCanvas(master=self,
highlightthickness=0,
width=self.width,
height=self.height)
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self.canvas.grid(row=0, column=0, sticky="nswe")
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self.text_label = tkinter.Label(master=self,
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highlightthickness=0,
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bd=0,
text=self.text,
font=self.text_font,
**kwargs)
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self.text_label.grid(row=0, column=0, padx=self.corner_radius)
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self.draw_engine = CTkDrawEngine(self.canvas, CTkSettings.preferred_drawing_method)
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super().configure(width=self.width, height=self.height)
self.bind('<Configure>', self.update_dimensions)
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self.draw()
def destroy(self):
AppearanceModeTracker.remove(self.change_appearance_mode)
super().destroy()
def detect_color_of_master(self):
if isinstance(self.master, CTkFrame):
return self.master.fg_color
else:
return self.master.cget("bg")
def update_dimensions(self, event):
# only redraw if dimensions changed (for performance)
if self.width != event.width or self.height != event.height:
self.width = event.width
self.height = event.height
# self.canvas.config(width=self.width, height=self.height)
self.draw()
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def draw(self):
requires_recoloring = self.draw_engine.draw_rounded_rect_with_border(self.width, self.height, self.corner_radius, 0)
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self.canvas.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
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if CTkThemeManager.single_color(self.fg_color, self.appearance_mode) is not None:
self.canvas.itemconfig("inner_parts",
fill=CTkThemeManager.single_color(self.fg_color, self.appearance_mode),
outline=CTkThemeManager.single_color(self.fg_color, self.appearance_mode))
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self.text_label.configure(fg=CTkThemeManager.single_color(self.text_color, self.appearance_mode),
bg=CTkThemeManager.single_color(self.fg_color, self.appearance_mode))
else:
self.canvas.itemconfig("inner_parts",
fill=CTkThemeManager.single_color(self.bg_color, self.appearance_mode),
outline=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
self.text_label.configure(fg=CTkThemeManager.single_color(self.text_color, self.appearance_mode),
bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
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def config(self, *args, **kwargs):
self.configure(*args, **kwargs)
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def configure(self, *args, **kwargs):
require_redraw = False # some attribute changes require a call of self.draw() at the end
if "text" in kwargs:
self.set_text(kwargs["text"])
del kwargs["text"]
if "fg_color" in kwargs:
self.fg_color = kwargs["fg_color"]
require_redraw = True
del kwargs["fg_color"]
if "bg_color" in kwargs:
if kwargs["bg_color"] is None:
self.bg_color = self.detect_color_of_master()
else:
self.bg_color = kwargs["bg_color"]
require_redraw = True
del kwargs["bg_color"]
if "text_color" in kwargs:
self.text_color = kwargs["text_color"]
require_redraw = True
del kwargs["text_color"]
self.text_label.configure(*args, **kwargs)
if require_redraw:
self.draw()
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def set_text(self, text):
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self.text = text
self.text_label.configure(text=self.text, width=len(self.text))
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def change_appearance_mode(self, mode_string):
if mode_string.lower() == "dark":
self.appearance_mode = 1
elif mode_string.lower() == "light":
self.appearance_mode = 0
if isinstance(self.master, (CTkFrame, CTk)):
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self.bg_color = self.master.fg_color
else:
self.bg_color = self.master.cget("bg")
self.draw()