added no_color_updates option for set_scaling methods, added transparency effect on Windows when window scaling, changed scaling loop times

customtkinter/scaling_tracker.py

@@ -1,6 +1,6 @@
 import tkinter
 import sys
-from typing import Callable
+from typing import Callable, Dict
 
 
 class ScalingTracker:
@@ -14,7 +14,8 @@ class ScalingTracker:
     spacing_scaling = 1
 
     update_loop_running = False
-    update_loop_interval = 150  # milliseconds
+    update_loop_interval = 600  # ms
+    loop_pause_after_new_scaling = 1000  # ms
 
     @classmethod
     def get_widget_scaling(cls, widget) -> float:
@@ -162,18 +163,32 @@ class ScalingTracker:
 
     @classmethod
     def check_dpi_scaling(cls):
+        new_scaling_detected = False
+
         # check for every window if scaling value changed
         for window in cls.window_widgets_dict:
-            if window.winfo_exists():
+            if window.winfo_exists() and not window.state() == "iconic":
                 current_dpi_scaling_value = cls.get_window_dpi_scaling(window)
                 if current_dpi_scaling_value != cls.window_dpi_scaling_dict[window]:
                     cls.window_dpi_scaling_dict[window] = current_dpi_scaling_value
+
+                    if sys.platform.startswith("win"):
+                        window.attributes("-alpha", 0.15)
+
                     cls.update_scaling_callbacks_for_window(window)
 
+                    if sys.platform.startswith("win"):
+                        window.after(200, lambda: window.attributes("-alpha", 1))
+
+                    new_scaling_detected = True
+
         # find an existing tkinter object for the next call of .after()
         for app in cls.window_widgets_dict.keys():
             try:
-                app.after(cls.update_loop_interval, cls.check_dpi_scaling)
+                if new_scaling_detected:
+                    app.after(cls.loop_pause_after_new_scaling, cls.check_dpi_scaling)
+                else:
+                    app.after(cls.update_loop_interval, cls.check_dpi_scaling)
                 return
             except Exception:
                 continue

customtkinter/widgets/ctk_button.py

@@ -106,15 +106,11 @@ class CTkButton(CTkBaseClass):
         super()._set_scaling(*args, **kwargs)
 
         if self._text_label is not None:
-            self._text_label.destroy()
-            self._text_label = None
-        if self._image_label is not None:
-            self._image_label.destroy()
-            self._image_label = None
+            self._text_label.configure(font=self._apply_font_scaling(self._font))
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width: int = None, height: int = None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_checkbox.py

@@ -137,7 +137,7 @@ class CTkCheckBox(CTkBaseClass):
                                   height=self._apply_widget_scaling(self._desired_height))
         self._canvas.configure(width=self._apply_widget_scaling(self._checkbox_width),
                                height=self._apply_widget_scaling(self._checkbox_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width: int = None, height: int = None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_combobox.py

@@ -135,7 +135,7 @@ class CTkComboBox(CTkBaseClass):
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width: int = None, height: int = None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_entry.py

@@ -115,7 +115,7 @@ class CTkEntry(CTkBaseClass):
                          padx=self._apply_widget_scaling(self._corner_radius) if self._corner_radius >= 6 else self._apply_widget_scaling(6))
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width), height=self._apply_widget_scaling(self._desired_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width=None, height=None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_frame.py

@@ -62,7 +62,7 @@ class CTkFrame(CTkBaseClass):
         self._draw_engine = DrawEngine(self._canvas)
         self._overwrite_preferred_drawing_method = overwrite_preferred_drawing_method
 
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def winfo_children(self) -> List[any]:
         """

customtkinter/widgets/ctk_label.py

@@ -88,7 +88,7 @@ class CTkLabel(CTkBaseClass):
         self._text_label.grid(row=0, column=0, sticky=text_label_grid_sticky,
                               padx=self._apply_widget_scaling(min(self._corner_radius, round(self._current_height/2))))
 
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width=None, height=None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_optionmenu.py

@@ -148,7 +148,7 @@ class CTkOptionMenu(CTkBaseClass):
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width: int = None, height: int = None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_progressbar.py

@@ -94,7 +94,7 @@ class CTkProgressBar(CTkBaseClass):
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width=None, height=None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_radiobutton.py

@@ -132,7 +132,7 @@ class CTkRadioButton(CTkBaseClass):
                                   height=self._apply_widget_scaling(self._desired_height))
         self._canvas.configure(width=self._apply_widget_scaling(self._radiobutton_width),
                                height=self._apply_widget_scaling(self._radiobutton_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width: int = None, height: int = None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_slider.py

@@ -114,7 +114,7 @@ class CTkSlider(CTkBaseClass):
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width=None, height=None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_switch.py

@@ -137,7 +137,7 @@ class CTkSwitch(CTkBaseClass):
                                   height=self._apply_widget_scaling(self._desired_height))
         self._canvas.configure(width=self._apply_widget_scaling(self._switch_width),
                                height=self._apply_widget_scaling(self._switch_height))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width: int = None, height: int = None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_tabview.py

@@ -123,7 +123,7 @@ class CTkTabview(CTkBaseClass):
 
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height - self._top_spacing - self._top_button_overhang))
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width=None, height=None):
         super()._set_dimensions(width, height)

customtkinter/widgets/ctk_textbox.py

@@ -182,7 +182,7 @@ class CTkTextbox(CTkBaseClass):
         self._canvas.configure(width=self._apply_widget_scaling(self._desired_width),
                                height=self._apply_widget_scaling(self._desired_height))
         self._create_grid_for_text_and_scrollbars(re_grid_textbox=False, re_grid_x_scrollbar=True, re_grid_y_scrollbar=True)
-        self._draw()
+        self._draw(no_color_updates=True)
 
     def _set_dimensions(self, width=None, height=None):
         super()._set_dimensions(width, height)

customtkinter/widgets/dropdown_menu.py

@@ -48,32 +48,31 @@ class DropdownMenu(tkinter.Menu):
         """ apply platform specific appearance attributes, configure all colors """
 
         if sys.platform == "darwin":
-            self.configure(tearoff=False,
-                           font=self._apply_font_scaling(self._font))
+            super().configure(tearoff=False,
+                              font=self._apply_font_scaling(self._font))
 
         elif sys.platform.startswith("win"):
-            print("dropdon win")
-            self.configure(tearoff=False,
-                           relief="flat",
-                           activebackground=ThemeManager.single_color(self._hover_color, self._appearance_mode),
-                           borderwidth=0,
-                           activeborderwidth=self._apply_widget_scaling(4),
-                           bg=ThemeManager.single_color(self._fg_color, self._appearance_mode),
-                           fg=ThemeManager.single_color(self._text_color, self._appearance_mode),
-                           activeforeground=ThemeManager.single_color(self._text_color, self._appearance_mode),
-                           font=self._apply_font_scaling(self._font),
-                           cursor="hand2")
+            super().configure(tearoff=False,
+                              relief="flat",
+                              activebackground=ThemeManager.single_color(self._hover_color, self._appearance_mode),
+                              borderwidth=self._apply_widget_scaling(4),
+                              activeborderwidth=self._apply_widget_scaling(4),
+                              bg=ThemeManager.single_color(self._fg_color, self._appearance_mode),
+                              fg=ThemeManager.single_color(self._text_color, self._appearance_mode),
+                              activeforeground=ThemeManager.single_color(self._text_color, self._appearance_mode),
+                              font=self._apply_font_scaling(self._font),
+                              cursor="hand2")
 
         else:
-            self.configure(tearoff=False,
-                           relief="flat",
-                           activebackground=ThemeManager.single_color(self._hover_color, self._appearance_mode),
-                           borderwidth=0,
-                           activeborderwidth=0,
-                           bg=ThemeManager.single_color(self._fg_color, self._appearance_mode),
-                           fg=ThemeManager.single_color(self._text_color, self._appearance_mode),
-                           activeforeground=ThemeManager.single_color(self._text_color, self._appearance_mode),
-                           font=self._apply_font_scaling(self._font))
+            super().configure(tearoff=False,
+                              relief="flat",
+                              activebackground=ThemeManager.single_color(self._hover_color, self._appearance_mode),
+                              borderwidth=0,
+                              activeborderwidth=0,
+                              bg=ThemeManager.single_color(self._fg_color, self._appearance_mode),
+                              fg=ThemeManager.single_color(self._text_color, self._appearance_mode),
+                              activeforeground=ThemeManager.single_color(self._text_color, self._appearance_mode),
+                              font=self._apply_font_scaling(self._font))
 
     def _add_menu_commands(self):
         """ delete existing menu labels and createe new labels with command according to values list """
@@ -110,15 +109,15 @@ class DropdownMenu(tkinter.Menu):
     def configure(self, **kwargs):
         if "fg_color" in kwargs:
             self._fg_color = kwargs.pop("fg_color")
-            self.configure(bg=ThemeManager.single_color(self._fg_color, self._appearance_mode))
+            super().configure(bg=ThemeManager.single_color(self._fg_color, self._appearance_mode))
 
         if "hover_color" in kwargs:
             self._hover_color = kwargs.pop("hover_color")
-            self.configure(activebackground=ThemeManager.single_color(self._hover_color, self._appearance_mode))
+            super().configure(activebackground=ThemeManager.single_color(self._hover_color, self._appearance_mode))
 
         if "text_color" in kwargs:
             self._text_color = kwargs.pop("text_color")
-            self.configure(fg=ThemeManager.single_color(self._text_color, self._appearance_mode))
+            super().configure(fg=ThemeManager.single_color(self._text_color, self._appearance_mode))
 
         if "font" in kwargs:
             self._font = kwargs.pop("font")
@@ -151,6 +150,9 @@ class DropdownMenu(tkinter.Menu):
         elif attribute_name == "values":
             return self._values
 
+        else:
+            return super().cget(attribute_name)
+
     def _apply_widget_scaling(self, value: Union[int, float, str]) -> Union[float, str]:
         if isinstance(value, (int, float)):
             return value * self._widget_scaling
@@ -183,10 +185,7 @@ class DropdownMenu(tkinter.Menu):
         self._widget_scaling = new_widget_scaling
         self._spacing_scaling = new_spacing_scaling
 
-        super().configure(font=self._apply_font_scaling(self._font))
-
-        if sys.platform.startswith("win"):
-            self.configure(activeborderwidth=self._apply_widget_scaling(4))
+        self._configure_menu_for_platforms()
 
     def _set_appearance_mode(self, mode_string):
         """ colors won't update on appearance mode change when dropdown is open, because it's not necessary """

customtkinter/windows/ctk_tk.py

@@ -5,6 +5,7 @@ import os
 import platform
 import ctypes
 import re
+import time
 from typing import Union, Tuple
 
 from ..appearance_mode_tracker import AppearanceModeTracker
@@ -78,6 +79,7 @@ class CTk(tkinter.Tk):
 
     def _update_dimensions_event(self, event=None):
         if not self._block_update_dimensions_event:
+            self.update_idletasks()
             detected_width = self.winfo_width()  # detect current window size
             detected_height = self.winfo_height()
 
@@ -94,7 +96,8 @@ class CTk(tkinter.Tk):
         # force new dimensions on window by using min, max, and geometry
         super().minsize(self._apply_window_scaling(self._current_width), self._apply_window_scaling(self._current_height))
         super().maxsize(self._apply_window_scaling(self._current_width), self._apply_window_scaling(self._current_height))
-        super().geometry(f"{self._apply_window_scaling(self._current_width)}x" + f"{self._apply_window_scaling(self._current_height)}")
+
+        super().geometry(f"{self._apply_window_scaling(self._current_width)}x{self._apply_window_scaling(self._current_height)}")
 
         # set new scaled min and max with 400ms delay (otherwise it won't work for some reason)
         self.after(400, self._set_scaled_min_max)
@@ -251,11 +254,11 @@ class CTk(tkinter.Tk):
             if "bg" in args[0]:
                 self._fg_color = args[0]["bg"]
                 bg_changed = True
-                args[0]["bg"] = ThemeManager.single_color(self.fg_color, self.appearance_mode)
+                args[0]["bg"] = ThemeManager.single_color(self._fg_color, self._appearance_mode)
             elif "background" in args[0]:
                 self._fg_color = args[0]["background"]
                 bg_changed = True
-                args[0]["background"] = ThemeManager.single_color(self.fg_color, self.appearance_mode)
+                args[0]["background"] = ThemeManager.single_color(self._fg_color, self._appearance_mode)
 
         if bg_changed:
             from ..widgets.widget_base_class import CTkBaseClass

test/manual_integration_tests/complex_example_new.py

@@ -14,7 +14,7 @@ class App(customtkinter.CTk):
         self.title("CustomTkinter complex_example.py")
         self.geometry(f"{1100}x{580}")
         self.minsize(800, 400)
-        self.maxsize(1300, 700)
+        #self.maxsize(1200, 700)
         self.protocol("WM_DELETE_WINDOW", self.on_closing)  # call .on_closing() when app gets closed
 
         # configure grid layout (4x4)
@@ -23,7 +23,7 @@ class App(customtkinter.CTk):
         self.grid_rowconfigure((0, 1, 2), weight=1)
 
         # create sidebar frame with widgets
-        self.sidebar_frame = customtkinter.CTkFrame(self, width=140)
+        self.sidebar_frame = customtkinter.CTkFrame(self, width=140, corner_radius=0)
         self.sidebar_frame.grid(row=0, column=0, rowspan=4, sticky="nsew")
         self.sidebar_frame.grid_rowconfigure(4, weight=1)
         self.logo_label = customtkinter.CTkLabel(self.sidebar_frame, text="CustomTkinter", font=("Roboto", -16))

test/manual_integration_tests/test_tabview.py

@@ -2,7 +2,7 @@ import customtkinter
 
 app = customtkinter.CTk()
 
-tabview_1 = customtkinter._CTkTabview(app, state="disabled")
+tabview_1 = customtkinter._CTkTabview(app)
 tabview_1.pack(padx=20, pady=20)
 
 tab_1 = tabview_1.add("tab 1")