fixed scrollable frame mouse wheel on linux #1356

customtkinter/__init__.py

@@ -1,4 +1,4 @@
-__version__ = "5.1.0"
+__version__ = "5.1.1"
 
 import os
 import sys

customtkinter/windows/widgets/ctk_scrollable_frame.py

@@ -74,7 +74,13 @@ class CTkScrollableFrame(tkinter.Frame, CTkAppearanceModeBaseClass, CTkScalingBa
 
         self.bind("<Configure>", lambda e: self._parent_canvas.configure(scrollregion=self._parent_canvas.bbox("all")))
         self._parent_canvas.bind("<Configure>", self._fit_frame_dimensions_to_canvas)
-        self.bind_all("<MouseWheel>", self._mouse_wheel_all, add="+")
+
+        if "linux" in sys.platform:
+            self.bind_all("<Button-4>", self._mouse_wheel_all, add="+")
+            self.bind_all("<Button-5>", self._mouse_wheel_all, add="+")
+        else:
+            self.bind_all("<MouseWheel>", self._mouse_wheel_all, add="+")
+
         self.bind_all("<KeyPress-Shift_L>", self._keyboard_shift_press_all, add="+")
         self.bind_all("<KeyPress-Shift_R>", self._keyboard_shift_press_all, add="+")
         self.bind_all("<KeyRelease-Shift_L>", self._keyboard_shift_release_all, add="+")
@@ -113,7 +119,7 @@ class CTkScrollableFrame(tkinter.Frame, CTkAppearanceModeBaseClass, CTkScalingBa
             self._parent_frame.grid_columnconfigure(0, weight=1)
             self._parent_frame.grid_rowconfigure(1, weight=1)
             self._parent_canvas.grid(row=1, column=0, sticky="nsew", padx=(border_spacing, 0), pady=border_spacing)
-            self._scrollbar.grid(row=1, column=1, sticky="nsew", padx=border_spacing)
+            self._scrollbar.grid(row=1, column=1, sticky="nsew", pady=border_spacing)
 
             if self._label_text is not None and self._label_text != "":
                 self._label.grid(row=0, column=0, columnspan=2, sticky="ew", padx=border_spacing, pady=border_spacing)
@@ -243,6 +249,8 @@ class CTkScrollableFrame(tkinter.Frame, CTkAppearanceModeBaseClass, CTkScalingBa
             self._parent_canvas.configure(xscrollincrement=1, yscrollincrement=1)
         elif sys.platform == "darwin":
             self._parent_canvas.configure(xscrollincrement=4, yscrollincrement=8)
+        else:
+            self._parent_canvas.configure(xscrollincrement=30, yscrollincrement=30)
 
     def _mouse_wheel_all(self, event):
         if self.check_if_master_is_canvas(event.widget):
@@ -263,10 +271,11 @@ class CTkScrollableFrame(tkinter.Frame, CTkAppearanceModeBaseClass, CTkScalingBa
             else:
                 if self._shift_pressed:
                     if self._parent_canvas.xview() != (0.0, 1.0):
-                        self._parent_canvas.xview("scroll", -event.delta, "units")
+                        self._parent_canvas.xview_scroll(-1 if event.num == 4 else 1, "units")
                 else:
                     if self._parent_canvas.yview() != (0.0, 1.0):
-                        self._parent_canvas.yview("scroll", -event.delta, "units")
+                        self._parent_canvas.yview_scroll(-1 if event.num == 4 else 1, "units")
+
 
     def _keyboard_shift_press_all(self, event):
         self._shift_pressed = True

examples/scrollable_frame_example.py

@@ -104,7 +104,8 @@ class App(customtkinter.CTk):
 
         # create scrollable radiobutton frame
         self.scrollable_radiobutton_frame = ScrollableRadiobuttonFrame(master=self, width=500, command=self.radiobutton_frame_event,
-                                                                       item_list=[f"item {i}" for i in range(100)])
+                                                                       item_list=[f"item {i}" for i in range(100)],
+                                                                       label_text="ScrollableRadiobuttonFrame")
         self.scrollable_radiobutton_frame.grid(row=0, column=1, padx=15, pady=15, sticky="ns")
         self.scrollable_radiobutton_frame.configure(width=200)
         self.scrollable_radiobutton_frame.remove_item("item 3")

pyproject.toml

@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 github_url = "https://github.com/TomSchimansky/CustomTkinter"
 
 [tool.tbump.version]
-current = "5.1.0"
+current = "5.1.1"
 
 # Example of a semver regexp.
 # Make sure this matches current_version before

setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = customtkinter
-version = 5.1.0
+version = 5.1.1
 description = Create modern looking GUIs with Python
 long_description = A modern and customizable python UI-library based on Tkinter: https://github.com/TomSchimansky/CustomTkinter
 long_description_content_type = text/markdown

test/manual_integration_tests/test_scrollable_frame.py

@@ -26,7 +26,7 @@ frame_4.configure(label_text="CTkScrollableFrame")
 frame_5 = customtkinter.CTkScrollableFrame(app, orientation="vertical", label_text="CTkScrollableFrame", corner_radius=0)
 frame_5.grid(row=0, column=2, rowspan=2, sticky="nsew")
 
-for i in range(100):
+for i in range(20):
     customtkinter.CTkCheckBox(frame_1).grid(row=i, padx=10, pady=10)
     customtkinter.CTkCheckBox(frame_2).grid(row=i, padx=10, pady=10)
     customtkinter.CTkCheckBox(frame_3).grid(row=0, column=i, padx=10, pady=10)