CustomTkinter/customtkinter/widgets/customtkinter_frame.py
2022-04-10 19:56:42 +02:00

193 lines
8.0 KiB
Python

import tkinter
import tkinter.ttk as ttk
from .customtkinter_tk import CTk
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 CTkFrame(tkinter.Frame):
def __init__(self, *args,
bg_color=None,
fg_color="default_theme",
border_color="default_theme",
border_width="default_theme",
corner_radius="default_theme",
width=200,
height=200,
**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[<attribut>] 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 = CTkThemeManager.theme["color"]["frame_border"] if border_color == "default_theme" else border_color
if fg_color == "default_theme":
if isinstance(self.master, CTkFrame):
if self.master.fg_color == CTkThemeManager.theme["color"]["frame_low"]:
self.fg_color = CTkThemeManager.theme["color"]["frame_high"]
else:
self.fg_color = CTkThemeManager.theme["color"]["frame_low"]
else:
self.fg_color = CTkThemeManager.theme["color"]["frame_low"]
else:
self.fg_color = fg_color
self.width = width
self.height = height
self.configure(width=self.width, height=self.height)
self.corner_radius = CTkThemeManager.theme["shape"]["frame_corner_radius"] if corner_radius == "default_theme" else corner_radius
self.border_width = CTkThemeManager.theme["shape"]["frame_border_width"] if border_width == "default_theme" else border_width
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
if self.corner_radius >= self.border_width:
self.inner_corner_radius = self.corner_radius - self.border_width
else:
self.inner_corner_radius = 0
self.canvas = CTkCanvas(master=self,
highlightthickness=0,
width=self.width,
height=self.height)
self.canvas.place(x=0, y=0, relwidth=1, relheight=1)
self.canvas.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
self.draw_engine = CTkDrawEngine(self.canvas, CTkSettings.preferred_drawing_method)
self.bind('<Configure>', self.update_dimensions)
self.draw()
def destroy(self):
AppearanceModeTracker.remove(self.change_appearance_mode)
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 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.draw()
def draw(self):
requires_recoloring = self.draw_engine.draw_rounded_rect_with_border(self.width, self.height, self.corner_radius, self.border_width)
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("border_parts",
fill=CTkThemeManager.single_color(self.border_color, self.appearance_mode),
outline=CTkThemeManager.single_color(self.border_color, self.appearance_mode))
self.canvas.configure(bg=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
self.canvas.tag_lower("inner_parts")
self.canvas.tag_lower("border_parts")
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"]
# check if CTk widgets are children of the frame and change their bg_color to new frame fg_color
from .customtkinter_slider import CTkSlider
from .customtkinter_progressbar import CTkProgressBar
from .customtkinter_label import CTkLabel
from .customtkinter_entry import CTkEntry
from customtkinter.widgets.customtkinter_checkbox import CTkCheckBox
from customtkinter.widgets.customtkinter_button import CTkButton
for child in self.winfo_children():
if isinstance(child, (CTkButton, CTkLabel, CTkSlider, CTkCheckBox, CTkEntry, CTkProgressBar, CTkFrame)):
child.configure(bg_color=self.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 "corner_radius" in kwargs:
self.corner_radius = kwargs["corner_radius"]
require_redraw = True
del kwargs["corner_radius"]
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()