import tkinter import sys from .customtkinter_tk import CTk from .customtkinter_frame import CTkFrame from .appearance_mode_tracker import AppearanceModeTracker from .customtkinter_color_manager import CTkColorManager class CTkLabel(tkinter.Frame): def __init__(self, *args, master=None, bg_color=None, fg_color="CTkColorManager", text_color="CTkColorManager", corner_radius=8, width=120, height=25, text="CTkLabel", text_font=None, **kwargs): if master is None: super().__init__(*args) else: super().__init__(*args, master=master) # 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 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.fg_color = CTkColorManager.LABEL_BG if fg_color == "CTkColorManager" else fg_color self.text_color = CTkColorManager.TEXT if text_color == "CTkColorManager" else text_color self.width = width self.height = height self.corner_radius = self.calc_optimal_corner_radius(corner_radius) # optimise for less artifacts 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 self.text = text if text_font is None: if sys.platform == "darwin": # macOS self.text_font = ("Avenir", 13) elif "win" in sys.platform: # Windows self.text_font = ("Century Gothic", 10) else: self.text_font = ("TkDefaultFont", 10) else: self.text_font = text_font self.canvas = tkinter.Canvas(master=self, highlightthicknes=0, width=self.width, height=self.height) self.canvas.place(relx=0, rely=0, anchor=tkinter.NW) self.text_label = tkinter.Label(master=self, highlightthicknes=0, bd=0, text=self.text, font=self.text_font, **kwargs) self.text_label.place(relx=0.5, rely=0.5, anchor=tkinter.CENTER) self.fg_parts = [] super().configure(width=self.width, height=self.height) self.bind('', self.update_dimensions) 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") @staticmethod def calc_optimal_corner_radius(user_corner_radius): if sys.platform == "darwin": return user_corner_radius # on macOS just use given value (canvas has Antialiasing) else: user_corner_radius = 0.5 * round(user_corner_radius / 0.5) # round to 0.5 steps # make sure the value is always with .5 at the end for smoother corners if user_corner_radius == 0: return 0 elif user_corner_radius % 1 == 0: return user_corner_radius + 0.5 else: return user_corner_radius 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() def draw(self): self.canvas.delete("all") self.fg_parts = [] if sys.platform == "darwin": oval_size_corr_br = 0 else: oval_size_corr_br = -1 # correct canvas oval draw size on bottom and right by 1 pixel (too large otherwise) # frame_border self.fg_parts.append(self.canvas.create_oval(0, 0, self.corner_radius*2 + oval_size_corr_br, self.corner_radius*2 + oval_size_corr_br)) self.fg_parts.append(self.canvas.create_oval(self.width-self.corner_radius*2, 0, self.width + oval_size_corr_br, self.corner_radius*2 + oval_size_corr_br)) self.fg_parts.append(self.canvas.create_oval(0, self.height-self.corner_radius*2, self.corner_radius*2 + oval_size_corr_br, self.height + oval_size_corr_br)) self.fg_parts.append(self.canvas.create_oval(self.width-self.corner_radius*2, self.height-self.corner_radius*2, self.width + oval_size_corr_br, self.height + oval_size_corr_br)) self.fg_parts.append(self.canvas.create_rectangle(0, self.corner_radius, self.width, self.height-self.corner_radius)) self.fg_parts.append(self.canvas.create_rectangle(self.corner_radius, 0, self.width-self.corner_radius, self.height)) if type(self.bg_color) == tuple: self.canvas.configure(bg=self.bg_color[self.appearance_mode]) else: self.canvas.configure(bg=self.bg_color) if self.fg_color is None: new_fg_color = self.bg_color else: new_fg_color = self.fg_color for part in self.fg_parts: if type(new_fg_color) == tuple: self.canvas.itemconfig(part, fill=new_fg_color[self.appearance_mode], width=0) else: self.canvas.itemconfig(part, fill=new_fg_color, width=0) if type(self.text_color) == tuple: self.text_label.configure(fg=self.text_color[self.appearance_mode]) else: self.text_label.configure(fg=self.text_color) if type(new_fg_color) == tuple: self.text_label.configure(bg=new_fg_color[self.appearance_mode]) else: self.text_label.configure(bg=new_fg_color) 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 "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() def set_text(self, text): self.text = text self.text_label.configure(text=self.text, width=len(self.text)) 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)): self.bg_color = self.master.fg_color else: self.bg_color = self.master.cget("bg") self.draw()