import tkinter from .ctk_canvas import CTkCanvas from ..theme_manager import CTkThemeManager from ..ctk_draw_engine import CTkDrawEngine from ..ctk_settings import CTkSettings from .widget_base_class import CTkBaseClass class CTkProgressBar(CTkBaseClass): """ tkinter custom progressbar, always horizontal, values are from 0 to 1 """ def __init__(self, *args, variable=None, bg_color=None, border_color="default_theme", fg_color="default_theme", progress_color="default_theme", corner_radius="default_theme", width=200, height=8, border_width="default_theme", **kwargs): # transfer basic functionality (bg_color, size, appearance_mode, scaling) to CTkBaseClass super().__init__(*args, bg_color=bg_color, width=width, height=height, **kwargs) # color self.border_color = CTkThemeManager.theme["color"]["progressbar_border"] if border_color == "default_theme" else border_color self.fg_color = CTkThemeManager.theme["color"]["progressbar"] if fg_color == "default_theme" else fg_color self.progress_color = CTkThemeManager.theme["color"]["progressbar_progress"] if progress_color == "default_theme" else progress_color # control variable self.variable = variable self.variable_callback_blocked = False self.variable_callback_name = None # shape self.corner_radius = CTkThemeManager.theme["shape"]["progressbar_corner_radius"] if corner_radius == "default_theme" else corner_radius self.border_width = CTkThemeManager.theme["shape"]["progressbar_border_width"] if border_width == "default_theme" else border_width self.value = 0.5 self.grid_rowconfigure(0, weight=1) self.grid_columnconfigure(0, weight=1) self.canvas = CTkCanvas(master=self, highlightthickness=0, width=self.apply_widget_scaling(self.desired_width), height=self.apply_widget_scaling(self.desired_height)) self.canvas.grid(row=0, column=0, rowspan=1, columnspan=1, sticky="nswe") self.draw_engine = CTkDrawEngine(self.canvas, CTkSettings.preferred_drawing_method) # Each time an item is resized due to pack position mode, the binding Configure is called on the widget self.bind('', self.update_dimensions_event) self.draw() # initial draw if self.variable is not None: self.variable_callback_name = self.variable.trace_add("write", self.variable_callback) self.variable_callback_blocked = True self.set(self.variable.get(), from_variable_callback=True) self.variable_callback_blocked = False def set_scaling(self, *args, **kwargs): super().set_scaling(*args, **kwargs) self.canvas.configure(width=self.apply_widget_scaling(self.desired_width), height=self.apply_widget_scaling(self.desired_height)) self.draw() def destroy(self): if self.variable is not None: self.variable.trace_remove("write", self.variable_callback_name) super().destroy() def draw(self, no_color_updates=False): requires_recoloring = self.draw_engine.draw_rounded_progress_bar_with_border(self.apply_widget_scaling(self.current_width), self.apply_widget_scaling(self.current_height), self.apply_widget_scaling(self.corner_radius), self.apply_widget_scaling(self.border_width), self.value, "w") if no_color_updates is False or requires_recoloring: self.canvas.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode)) 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)) 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)) def configure(self, *args, **kwargs): require_redraw = False # some attribute changes require a call of self.draw() at the end 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 "fg_color" in kwargs: self.fg_color = kwargs["fg_color"] del kwargs["fg_color"] require_redraw = True if "border_color" in kwargs: self.border_color = kwargs["border_color"] del kwargs["border_color"] require_redraw = True if "progress_color" in kwargs: self.progress_color = kwargs["progress_color"] del kwargs["progress_color"] require_redraw = True if "border_width" in kwargs: self.border_width = kwargs["border_width"] del kwargs["border_width"] require_redraw = True 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) self.set(self.variable.get(), from_variable_callback=True) else: self.variable = None del kwargs["variable"] super().configure(*args, **kwargs) if require_redraw is True: self.draw() def variable_callback(self, var_name, index, mode): if not self.variable_callback_blocked: self.set(self.variable.get(), from_variable_callback=True) def set(self, value, from_variable_callback=False): self.value = value if self.value > 1: self.value = 1 elif self.value < 0: self.value = 0 self.draw(no_color_updates=True) if self.variable is not None and not from_variable_callback: self.variable_callback_blocked = True self.variable.set(round(self.value) if isinstance(self.variable, tkinter.IntVar) else self.value) self.variable_callback_blocked = False