mirror of
https://github.com/TomSchimansky/CustomTkinter.git
synced 2023-08-10 21:13:13 +03:00
219 lines
9.0 KiB
Python
219 lines
9.0 KiB
Python
import sys
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import tkinter
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from .customtkinter_tk import CTk
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from .customtkinter_frame import CTkFrame
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from .appearance_mode_tracker import AppearanceModeTracker
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from .customtkinter_theme_manager import CTkThemeManager
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from .customtkinter_canvas import CTkCanvas
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from .customtkinter_draw_engine import CTkDrawEngine
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from .customtkinter_settings import CTkSettings
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class CTkProgressBar(tkinter.Frame):
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""" tkinter custom progressbar, always horizontal, values are from 0 to 1 """
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def __init__(self, *args,
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variable=None,
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bg_color=None,
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border_color="default_theme",
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fg_color="default_theme",
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progress_color="default_theme",
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corner_radius="default_theme",
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width=200,
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height=8,
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border_width="default_theme",
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**kwargs):
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super().__init__(*args, **kwargs)
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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
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if isinstance(self.master, (tkinter.Tk, tkinter.Frame)) and not isinstance(self.master, (CTk, CTkFrame)):
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master_old_configure = self.master.config
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def new_configure(*args, **kwargs):
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if "bg" in kwargs:
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self.configure(bg_color=kwargs["bg"])
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elif "background" in kwargs:
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self.configure(bg_color=kwargs["background"])
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# args[0] is dict when attribute gets changed by widget[<attribut>] syntax
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elif len(args) > 0 and type(args[0]) == dict:
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if "bg" in args[0]:
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self.configure(bg_color=args[0]["bg"])
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elif "background" in args[0]:
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self.configure(bg_color=args[0]["background"])
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master_old_configure(*args, **kwargs)
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self.master.config = new_configure
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self.master.configure = new_configure
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# add set_appearance_mode method to callback list of AppearanceModeTracker for appearance mode changes
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AppearanceModeTracker.add(self.change_appearance_mode, self)
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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
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self.border_color = CTkThemeManager.theme["color"]["progressbar_border"] if border_color == "default_theme" else border_color
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self.fg_color = CTkThemeManager.theme["color"]["progressbar"] if fg_color == "default_theme" else fg_color
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self.progress_color = CTkThemeManager.theme["color"]["progressbar_progress"] if progress_color == "default_theme" else progress_color
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self.variable = variable
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self.variable_callback_blocked = False
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self.variable_callback_name = None
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self.width = width
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self.height = height
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self.corner_radius = CTkThemeManager.theme["shape"]["progressbar_corner_radius"] if corner_radius == "default_theme" else corner_radius
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self.border_width = CTkThemeManager.theme["shape"]["progressbar_border_width"] if border_width == "default_theme" else border_width
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self.value = 0.5
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self.configure(width=self.width, height=self.height)
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self.canvas = CTkCanvas(master=self,
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highlightthickness=0,
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width=self.width,
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height=self.height)
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self.canvas.place(x=0, y=0, relwidth=1, relheight=1)
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self.draw_engine = CTkDrawEngine(self.canvas, CTkSettings.preferred_drawing_method)
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# Each time an item is resized due to pack position mode, the binding Configure is called on the widget
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self.bind('<Configure>', self.update_dimensions)
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self.draw() # initial draw
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if self.variable is not None:
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self.variable_callback_name = self.variable.trace_add("write", self.variable_callback)
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self.variable_callback_blocked = True
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self.set(self.variable.get(), from_variable_callback=True)
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self.variable_callback_blocked = False
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def destroy(self):
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AppearanceModeTracker.remove(self.change_appearance_mode)
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if self.variable is not None:
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self.variable.trace_remove("write", self.variable_callback_name)
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super().destroy()
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def detect_color_of_master(self):
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if isinstance(self.master, CTkFrame):
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return self.master.fg_color
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else:
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return self.master.cget("bg")
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@staticmethod
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def calc_optimal_height(user_height):
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if sys.platform == "darwin":
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return user_height # on macOS just use given value (canvas has Antialiasing)
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else:
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# make sure the value is always with uneven for better rendering of the ovals
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if user_height == 0:
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return 0
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elif user_height % 2 == 0:
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return user_height + 1
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else:
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return user_height
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def update_dimensions(self, event):
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# only redraw if dimensions changed (for performance)
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if self.width != event.width or self.height != event.height:
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self.width = event.width
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self.height = event.height
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self.draw()
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def draw(self, no_color_updates=False):
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requires_recoloring = self.draw_engine.draw_rounded_progress_bar_with_border(self.width, self.height, self.corner_radius, self.border_width, self.value, "w")
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if no_color_updates is False or requires_recoloring:
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self.canvas.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
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self.canvas.itemconfig("border_parts",
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fill=CTkThemeManager.single_color(self.border_color, self.appearance_mode),
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outline=CTkThemeManager.single_color(self.border_color, self.appearance_mode))
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self.canvas.itemconfig("inner_parts",
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fill=CTkThemeManager.single_color(self.fg_color, self.appearance_mode),
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outline=CTkThemeManager.single_color(self.fg_color, self.appearance_mode))
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self.canvas.itemconfig("progress_parts",
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fill=CTkThemeManager.single_color(self.progress_color, self.appearance_mode),
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outline=CTkThemeManager.single_color(self.progress_color, self.appearance_mode))
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def configure(self, *args, **kwargs):
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require_redraw = False # some attribute changes require a call of self.draw() at the end
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if "bg_color" in kwargs:
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self.bg_color = kwargs["bg_color"]
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del kwargs["bg_color"]
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require_redraw = True
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if "fg_color" in kwargs:
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self.fg_color = kwargs["fg_color"]
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del kwargs["fg_color"]
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require_redraw = True
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if "border_color" in kwargs:
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self.border_color = kwargs["border_color"]
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del kwargs["border_color"]
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require_redraw = True
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if "progress_color" in kwargs:
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self.progress_color = kwargs["progress_color"]
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del kwargs["progress_color"]
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require_redraw = True
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if "border_width" in kwargs:
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self.border_width = kwargs["border_width"]
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del kwargs["border_width"]
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require_redraw = True
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if "variable" in kwargs:
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if self.variable is not None:
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self.variable.trace_remove("write", self.variable_callback_name)
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self.variable = kwargs["variable"]
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if self.variable is not None and self.variable != "":
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self.variable_callback_name = self.variable.trace_add("write", self.variable_callback)
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self.set(self.variable.get(), from_variable_callback=True)
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else:
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self.variable = None
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del kwargs["variable"]
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super().configure(*args, **kwargs)
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if require_redraw is True:
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self.draw()
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def variable_callback(self, var_name, index, mode):
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if not self.variable_callback_blocked:
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self.set(self.variable.get(), from_variable_callback=True)
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def set(self, value, from_variable_callback=False):
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self.value = value
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if self.value > 1:
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self.value = 1
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elif self.value < 0:
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self.value = 0
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self.draw(no_color_updates=True)
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if self.variable is not None and not from_variable_callback:
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self.variable_callback_blocked = True
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self.variable.set(round(self.value) if isinstance(self.variable, tkinter.IntVar) else self.value)
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self.variable_callback_blocked = False
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def change_appearance_mode(self, mode_string):
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if mode_string.lower() == "dark":
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self.appearance_mode = 1
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elif mode_string.lower() == "light":
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self.appearance_mode = 0
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if isinstance(self.master, CTkFrame):
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self.bg_color = self.master.fg_color
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else:
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self.bg_color = self.master.cget("bg")
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self.draw()
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