import tkinter import math from .ctk_canvas import CTkCanvas from ..theme_manager import ThemeManager from ..draw_engine import DrawEngine from .widget_base_class import CTkBaseClass class CTkProgressBar(CTkBaseClass): """ tkinter custom progressbar, values 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=None, height=None, border_width="default_theme", orient="horizontal", mode="determinate", determinate_speed=1, indeterminate_speed=1, **kwargs): # set default dimensions according to orientation if width is None: if orient.lower() == "vertical": width = 8 else: width = 200 if height is None: if orient.lower() == "vertical": height = 200 else: height = 8 # 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 = ThemeManager.theme["color"]["progressbar_border"] if border_color == "default_theme" else border_color self.fg_color = ThemeManager.theme["color"]["progressbar"] if fg_color == "default_theme" else fg_color self.progress_color = ThemeManager.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 = ThemeManager.theme["shape"]["progressbar_corner_radius"] if corner_radius == "default_theme" else corner_radius self.border_width = ThemeManager.theme["shape"]["progressbar_border_width"] if border_width == "default_theme" else border_width self.determinate_value = 0.5 # range 0-1 self.determinate_speed = determinate_speed # range 0-1 self.indeterminate_value = 0 # range 0-inf self.indeterminate_width = 0.4 # range 0-1 self.indeterminate_speed = indeterminate_speed # range 0-1 to travel in 50ms self.loop_running = False self.orient = orient self.mode = mode # "determinate" or "indeterminate" 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 = DrawEngine(self.canvas) # 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 set_dimensions(self, width=None, height=None): super().set_dimensions(width, height) 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): if self.orient.lower() == "horizontal": orientation = "w" elif self.orient.lower() == "vertical": orientation = "s" else: orientation = "w" if self.mode == "determinate": 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), 0, self.determinate_value, orientation) else: # indeterminate mode progress_value = (math.sin(self.indeterminate_value * math.pi / 40) + 1) / 2 progress_value_1 = min(1.0, progress_value + (self.indeterminate_width / 2)) progress_value_2 = max(0.0, progress_value - (self.indeterminate_width / 2)) 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), progress_value_1, progress_value_2, orientation) if no_color_updates is False or requires_recoloring: self.canvas.configure(bg=ThemeManager.single_color(self.bg_color, self._appearance_mode)) self.canvas.itemconfig("border_parts", fill=ThemeManager.single_color(self.border_color, self._appearance_mode), outline=ThemeManager.single_color(self.border_color, self._appearance_mode)) self.canvas.itemconfig("inner_parts", fill=ThemeManager.single_color(self.fg_color, self._appearance_mode), outline=ThemeManager.single_color(self.fg_color, self._appearance_mode)) self.canvas.itemconfig("progress_parts", fill=ThemeManager.single_color(self.progress_color, self._appearance_mode), outline=ThemeManager.single_color(self.progress_color, self._appearance_mode)) def configure(self, require_redraw=False, **kwargs): 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"] if "mode" in kwargs: self.mode = kwargs.pop("mode") require_redraw = True if "determinate_speed" in kwargs: self.determinate_speed = kwargs.pop("determinate_speed") if "indeterminate_speed" in kwargs: self.indeterminate_speed = kwargs.pop("indeterminate_speed") if "width" in kwargs: self.set_dimensions(width=kwargs["width"]) del kwargs["width"] if "height" in kwargs: self.set_dimensions(height=kwargs["height"]) del kwargs["height"] super().configure(require_redraw=require_redraw, **kwargs) 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): """ set determinate value """ self.determinate_value = value if self.determinate_value > 1: self.determinate_value = 1 elif self.determinate_value < 0: self.determinate_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.determinate_value) if isinstance(self.variable, tkinter.IntVar) else self.determinate_value) self.variable_callback_blocked = False def get(self): """ get determinate value """ return self.determinate_value def start(self): """ start indeterminate mode """ if not self.loop_running: self.loop_running = True self.internal_loop() def stop(self): """ stop indeterminate mode """ self.loop_running = False def internal_loop(self): if self.loop_running: if self.mode == "determinate": self.determinate_value += self.determinate_speed / 50 if self.determinate_value > 1: self.determinate_value -= 1 self.draw() self.after(20, self.internal_loop) else: self.indeterminate_value += self.indeterminate_speed self.draw() self.after(20, self.internal_loop) def step(self): if self.mode == "determinate": self.determinate_value += self.determinate_speed / 50 if self.determinate_value > 1: self.determinate_value -= 1 self.draw() else: self.indeterminate_value += self.indeterminate_speed self.draw()