import tkinter import tkinter.ttk as ttk import sys from .customtkinter_tk import CTk from .customtkinter_frame import CTkFrame from .customtkinter_canvas import CTkCanvas from ..appearance_mode_tracker import AppearanceModeTracker from ..customtkinter_theme_manager import CTkThemeManager from ..customtkinter_settings import CTkSettings from ..customtkinter_draw_engine import CTkDrawEngine class CTkSwitch(tkinter.Frame): def __init__(self, *args, text="CTkSwitch", text_font="default_theme", text_color="default_theme", bg_color=None, border_color=None, fg_color="default_theme", progress_color="default_theme", button_color="default_theme", button_hover_color="default_theme", width=36, height=18, corner_radius="default_theme", # button_corner_radius="default_theme", border_width="default_theme", button_length="default_theme", command=None, onvalue=1, offvalue=0, variable=None, textvariable=None, **kwargs): super().__init__(*args, **kwargs) # 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[] 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 # add set_appearance_mode method to callback list of AppearanceModeTracker for appearance mode changes AppearanceModeTracker.add(self.change_appearance_mode, self) self.appearance_mode = AppearanceModeTracker.get_mode() # 0: "Light" 1: "Dark" self.bg_color = self.detect_color_of_master() if bg_color is None else bg_color self.border_color = border_color self.fg_color = CTkThemeManager.theme["color"]["switch"] if fg_color == "default_theme" else fg_color self.progress_color = CTkThemeManager.theme["color"]["switch_progress"] if progress_color == "default_theme" else progress_color self.button_color = CTkThemeManager.theme["color"]["switch_button"] if button_color == "default_theme" else button_color self.button_hover_color = CTkThemeManager.theme["color"]["switch_button_hover"] if button_hover_color == "default_theme" else button_hover_color self.text_color = CTkThemeManager.theme["color"]["text"] if text_color == "default_theme" else text_color self.text = text self.text_font = (CTkThemeManager.theme["text"]["font"], CTkThemeManager.theme["text"]["size"]) if text_font == "default_theme" else text_font self.width = width self.height = height self.corner_radius = CTkThemeManager.theme["shape"]["switch_corner_radius"] if corner_radius == "default_theme" else corner_radius # self.button_corner_radius = CTkThemeManager.theme["shape"]["switch_button_corner_radius"] if button_corner_radius == "default_theme" else button_corner_radius self.border_width = CTkThemeManager.theme["shape"]["switch_border_width"] if border_width == "default_theme" else border_width self.button_length = CTkThemeManager.theme["shape"]["switch_button_length"] if button_length == "default_theme" else button_length self.hover_state = False self.check_state = False # True if switch is activated self.onvalue = onvalue self.offvalue = offvalue #if self.corner_radius < self.button_corner_radius: # self.corner_radius = self.button_corner_radius self.callback_function = command self.variable: tkinter.Variable = variable self.variable_callback_blocked = False self.variable_callback_name = None self.textvariable = textvariable # configure grid system self.grid_columnconfigure(0, weight=1) self.grid_columnconfigure(1, weight=0, minsize=6) self.grid_columnconfigure(2, weight=0) self.canvas = CTkCanvas(master=self, highlightthickness=0, width=self.width, height=self.height) self.canvas.grid(row=0, column=0, padx=0, pady=0, columnspan=1, sticky="nswe") self.draw_engine = CTkDrawEngine(self.canvas, CTkSettings.preferred_drawing_method) if sys.platform == "darwin" and CTkSettings.hand_cursor_enabled: self.canvas.configure(cursor="pointinghand") elif sys.platform.startswith("win") and CTkSettings.hand_cursor_enabled: self.canvas.configure(cursor="hand2") self.canvas.bind("", self.on_enter) self.canvas.bind("", self.on_leave) self.canvas.bind("", self.toggle) self.text_label = None self.draw() # initial draw if self.variable is not None: self.variable_callback_name = self.variable.trace_add("write", self.variable_callback) if self.variable.get() == self.onvalue: self.select(from_variable_callback=True) elif self.variable.get() == self.offvalue: self.deselect(from_variable_callback=True) def destroy(self): # remove change_appearance_mode function from callback list of AppearanceModeTracker AppearanceModeTracker.remove(self.change_appearance_mode) # remove variable_callback from variable callbacks if variable exists if self.variable is not None: self.variable.trace_remove("write", self.variable_callback_name) super().destroy() def detect_color_of_master(self): """ detect color of self.master widget to set correct bg_color """ if isinstance(self.master, CTkFrame): # master is CTkFrame return self.master.fg_color elif isinstance(self.master, (ttk.Frame, ttk.LabelFrame, ttk.Notebook)): # master is ttk widget try: ttk_style = ttk.Style() return ttk_style.lookup(self.master.winfo_class(), 'background') except Exception: return "#FFFFFF", "#000000" else: # master is normal tkinter widget try: return self.master.cget("bg") # try to get bg color by .cget() method except Exception: return "#FFFFFF", "#000000" def draw(self, color_updates=True): if self.check_state is True: requires_recoloring = self.draw_engine.draw_rounded_slider_with_border_and_button(self.width, self.height, self.corner_radius, self.border_width, self.button_length, self.corner_radius, 1, "w") else: requires_recoloring = self.draw_engine.draw_rounded_slider_with_border_and_button(self.width, self.height, self.corner_radius, self.border_width, self.button_length, self.corner_radius, 0, "w") if color_updates or requires_recoloring: self.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode)) self.canvas.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode)) if self.border_color is None: self.canvas.itemconfig("border_parts", fill=CTkThemeManager.single_color(self.bg_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.bg_color, self.appearance_mode)) else: self.canvas.itemconfig("border_parts", fill=CTkThemeManager.single_color(self.border_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.border_color, self.appearance_mode)) 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)) if self.progress_color is None: self.canvas.itemconfig("progress_parts", fill=CTkThemeManager.single_color(self.fg_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.fg_color, self.appearance_mode)) else: self.canvas.itemconfig("progress_parts", fill=CTkThemeManager.single_color(self.progress_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.progress_color, self.appearance_mode)) self.canvas.itemconfig("slider_parts", fill=CTkThemeManager.single_color(self.button_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.button_color, self.appearance_mode)) # self.canvas.configure(bg="red") if self.text_label is None: self.text_label = tkinter.Label(master=self, bd=0, text=self.text, justify=tkinter.LEFT, font=self.text_font) self.text_label.grid(row=0, column=2, padx=0, pady=0, sticky="w") self.text_label["anchor"] = "w" if self.textvariable is not None: self.text_label.configure(textvariable=self.textvariable) self.text_label.configure(fg=CTkThemeManager.single_color(self.text_color, self.appearance_mode)) self.text_label.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode)) self.set_text(self.text) def set_text(self, text): self.text = text if self.text_label is not None: self.text_label.configure(text=self.text) else: sys.stderr.write("ERROR (CTkSwitch): Cant change text because checkbox has no text.") def toggle(self, event=None): if self.check_state is True: self.check_state = False else: self.check_state = True self.draw(color_updates=False) if self.callback_function is not None: self.callback_function() if self.variable is not None: self.variable_callback_blocked = True self.variable.set(self.onvalue if self.check_state is True else self.offvalue) self.variable_callback_blocked = False def select(self, from_variable_callback=False): self.check_state = True self.draw(color_updates=False) if self.callback_function is not None: self.callback_function() if self.variable is not None and not from_variable_callback: self.variable_callback_blocked = True self.variable.set(self.onvalue) self.variable_callback_blocked = False def deselect(self, from_variable_callback=False): self.check_state = False self.draw(color_updates=False) if self.callback_function is not None: self.callback_function() if self.variable is not None and not from_variable_callback: self.variable_callback_blocked = True self.variable.set(self.offvalue) self.variable_callback_blocked = False def get(self): return self.onvalue if self.check_state is True else self.offvalue def on_enter(self, event=0): self.hover_state = True self.canvas.itemconfig("slider_parts", fill=CTkThemeManager.single_color(self.button_hover_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.button_hover_color, self.appearance_mode)) def on_leave(self, event=0): self.hover_state = False self.canvas.itemconfig("slider_parts", fill=CTkThemeManager.single_color(self.button_color, self.appearance_mode), outline=CTkThemeManager.single_color(self.button_color, self.appearance_mode)) def variable_callback(self, var_name, index, mode): if not self.variable_callback_blocked: if self.variable.get() == self.onvalue: self.select(from_variable_callback=True) elif self.variable.get() == self.offvalue: self.deselect(from_variable_callback=True) def config(self, *args, **kwargs): self.configure(*args, **kwargs) def configure(self, *args, **kwargs): require_redraw = False # some attribute changes require a call of self.draw() at the end 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 "progress_color" in kwargs: if kwargs["progress_color"] is None: self.progress_color = self.fg_color else: self.progress_color = kwargs["progress_color"] require_redraw = True del kwargs["progress_color"] if "button_color" in kwargs: self.button_color = kwargs["button_color"] require_redraw = True del kwargs["button_color"] if "button_hover_color" in kwargs: self.button_hover_color = kwargs["button_hover_color"] require_redraw = True del kwargs["button_hover_color"] if "border_color" in kwargs: self.border_color = kwargs["border_color"] require_redraw = True del kwargs["border_color"] if "border_width" in kwargs: self.border_width = kwargs["border_width"] require_redraw = True del kwargs["border_width"] if "command" in kwargs: self.callback_function = kwargs["command"] del kwargs["command"] if "textvariable" in kwargs: self.text_label.configure(textvariable=kwargs["textvariable"]) del kwargs["textvariable"] if "variable" in kwargs: if self.variable is not None: self.variable.trace_remove("write", self.variable_callback_name) self.variable = kwargs["variable"] if self.variable is not None and self.variable != "": self.variable_callback_name = self.variable.trace_add("write", self.variable_callback) if self.variable.get() == self.onvalue: self.select(from_variable_callback=True) elif self.variable.get() == self.offvalue: self.deselect(from_variable_callback=True) else: self.variable = None del kwargs["variable"] super().configure(*args, **kwargs) if require_redraw: self.draw() 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): self.bg_color = self.master.fg_color else: self.bg_color = self.master.cget("bg") self.draw()