Introduction

Basic Widgets

Toplevel Widgets

Geometry Management

Binding Functions

Working with Images in Tkinter

Tkinter Advance

Applications and Projects

Collapsible Pane in Tkinter

Creating a collapsible pane in Tkinter requires a bit of manual setup since there isn't a built-in widget for this purpose. However, with some creativity, we can achieve this using a combination of frames, buttons, and some logic.

Here's a tutorial to create a collapsible pane in Tkinter:

Collapsible Pane in Tkinter

  1. Setting up the basic GUI with Tkinter:

    Start with a basic window using Tkinter.

    import tkinter as tk
    
    root = tk.Tk()
    root.title("Collapsible Pane in Tkinter")
    root.geometry("400x400")
    
  2. Create a CollapsiblePane class:

    We'll design a CollapsiblePane class that will be our custom widget.

    class CollapsiblePane(tk.Frame):
        def __init__(self, master, **kwargs):
            tk.Frame.__init__(self, master, **kwargs)
            
            self.toggle_button = tk.Button(self, text="Open Pane", command=self.toggle)
            self.toggle_button.pack(fill=tk.X)
    
            self.pane = tk.Frame(self)
            self.opened = False
    
        def toggle(self):
            if self.opened:
                self.pane.pack_forget()
                self.toggle_button.config(text="Open Pane")
            else:
                self.pane.pack(fill=tk.BOTH, expand=True)
                self.toggle_button.config(text="Close Pane")
            self.opened = not self.opened
    

    The CollapsiblePane class contains a button (toggle_button) and a frame (pane). The button toggles the visibility of the frame.

  3. Using the CollapsiblePane:

    Create an instance of the CollapsiblePane and populate its inner frame with some content to demonstrate its functionality.

    collapsible = CollapsiblePane(root)
    collapsible.pack(pady=20, padx=20, fill=tk.BOTH, expand=True)
    
    for i in range(10):
        tk.Label(collapsible.pane, text=f"Content {i+1}").pack(pady=2)
    
  4. Run the main loop:

    root.mainloop()
    

By integrating the above code snippets and executing the script, you'll encounter a Tkinter window with a button labeled "Open Pane". Clicking on this button will expand the pane to reveal the content inside it. Clicking again will collapse the pane, hiding its content. This approach offers a simple way to implement a collapsible pane in Tkinter. If desired, you can further enhance the UI/UX by adding animations, styling, or more interactivity.

  1. How to create collapsible panes in Tkinter:

    • Description: Create collapsible panes in Tkinter by using a combination of frames and the ability to toggle their visibility.
    • Code Example:
      import tkinter as tk
      
      def toggle_pane():
          if frame.winfo_ismapped():
              frame.grid_remove()
          else:
              frame.grid()
      
      root = tk.Tk()
      
      # Create a collapsible pane
      frame = tk.Frame(root, width=200, height=100, bg='lightblue')
      frame.grid(row=0, column=0, padx=10, pady=10)
      
      # Toggle button
      toggle_button = tk.Button(root, text="Toggle Pane", command=toggle_pane)
      toggle_button.grid(row=1, column=0, pady=10)
      
      root.mainloop()
      
  2. Tkinter collapsible frame example:

    • Description: Create a collapsible frame in Tkinter with a toggle button to show/hide the frame.
    • Code Example:
      import tkinter as tk
      
      def toggle_frame():
          if frame.winfo_ismapped():
              frame.grid_remove()
          else:
              frame.grid()
      
      root = tk.Tk()
      
      # Create a collapsible frame
      frame = tk.Frame(root, width=200, height=100, bg='lightblue')
      frame.grid(row=0, column=0, padx=10, pady=10)
      
      # Toggle button
      toggle_button = tk.Button(root, text="Toggle Frame", command=toggle_frame)
      toggle_button.grid(row=1, column=0, pady=10)
      
      root.mainloop()
      
  3. Expandable and collapsible panes in Tkinter:

    • Description: Design expandable and collapsible panes in Tkinter by dynamically adjusting the size of frames.
    • Code Example:
      import tkinter as tk
      
      def toggle_pane():
          current_state = frame.grid_info()
          if current_state:
              frame.grid_forget()
          else:
              frame.grid(row=0, column=0, padx=10, pady=10)
      
      root = tk.Tk()
      
      # Create an expandable and collapsible pane
      frame = tk.Frame(root, width=200, height=100, bg='lightblue')
      frame.grid(row=0, column=0, padx=10, pady=10)
      
      # Toggle button
      toggle_button = tk.Button(root, text="Toggle Pane", command=toggle_pane)
      toggle_button.grid(row=1, column=0, pady=10)
      
      root.mainloop()
      
  4. Creating accordion-style panes in Tkinter:

    • Description: Implement accordion-style panes in Tkinter with toggle buttons to expand/collapse each section.
    • Code Example:
      import tkinter as tk
      
      def toggle_pane(pane):
          current_state = panes[pane].winfo_ismapped()
          if current_state:
              panes[pane].grid_remove()
          else:
              panes[pane].grid(row=0, column=pane, padx=10, pady=10)
      
      root = tk.Tk()
      
      # Create accordion-style panes
      panes = {}
      for i in range(3):
          panes[i] = tk.Frame(root, width=200, height=100, bg=f'lightblue')
          panes[i].grid(row=0, column=i, padx=10, pady=10)
      
          # Toggle button for each pane
          toggle_button = tk.Button(root, text=f"Toggle Pane {i}", command=lambda i=i: toggle_pane(i))
          toggle_button.grid(row=1, column=i, pady=10)
      
      root.mainloop()
      
  5. Customizing collapsible panes in Tkinter:

    • Description: Customize the appearance and behavior of collapsible panes in Tkinter based on specific requirements.
    • Code Example:
      import tkinter as tk
      
      def toggle_pane():
          if frame.winfo_ismapped():
              frame.grid_remove()
          else:
              frame.grid()
      
      root = tk.Tk()
      
      # Customize collapsible pane
      frame = tk.Frame(root, width=200, height=100, bg='lightblue', relief=tk.SOLID, bd=2)
      frame.grid(row=0, column=0, padx=10, pady=10)
      
      # Toggle button
      toggle_button = tk.Button(root, text="Toggle Pane", command=toggle_pane)
      toggle_button.grid(row=1, column=0, pady=10)
      
      root.mainloop()
      
  6. Toggleable frames in Tkinter with collapse feature:

    • Description: Create toggleable frames in Tkinter with the ability to collapse and expand each frame independently.
    • Code Example:
      import tkinter as tk
      
      class ToggleableFrame(tk.Frame):
          def __init__(self, master=None, **kwargs):
              super().__init__(master, **kwargs)
              self.visible = True
      
          def toggle(self):
              if self.visible:
                  self.grid_remove()
              else:
                  self.grid()
              self.visible = not self.visible
      
      root = tk.Tk()
      
      # Create toggleable frames
      frame1 = ToggleableFrame(root, width=200, height=100, bg='lightblue')
      frame1.grid(row=0, column=0, padx=10, pady=10)
      
      frame2 = ToggleableFrame(root, width=200, height=100, bg='lightgreen')
      frame2.grid(row=0, column=1, padx=10, pady=10)
      
      # Toggle buttons
      toggle_button1 = tk.Button(root, text="Toggle Frame 1", command=frame1.toggle)
      toggle_button1.grid(row=1, column=0, pady=10)
      
      toggle_button2 = tk.Button(root, text="Toggle Frame 2", command=frame2.toggle)
      toggle_button2.grid(row=1, column=1, pady=10)
      
      root.mainloop()
      
  7. Adding collapsible sections to Tkinter GUI:

    • Description: Enhance a Tkinter GUI by adding collapsible sections using frames and toggle buttons.
    • Code Example:
      import tkinter as tk
      
      def toggle_section(section):
          current_state = sections[section].winfo_ismapped()
          if current_state:
              sections[section].grid_remove()
          else:
              sections[section].grid(row=0, column=section, padx=10, pady=10)
      
      root = tk.Tk()
      
      # Add collapsible sections to the Tkinter GUI
      sections = {}
      for i in range(3):
          sections[i] = tk.Frame(root, width=200, height=100, bg=f'lightblue')
          sections[i].grid(row=0, column=i, padx=10, pady=10)
      
          # Toggle button for each section
          toggle_button = tk.Button(root, text=f"Toggle Section {i}", command=lambda i=i: toggle_section(i))
          toggle_button.grid(row=1, column=i, pady=10)
      
      root.mainloop()
      
  8. Tkinter collapsible pane with toggle button:

    • Description: Design a Tkinter collapsible pane with a dedicated toggle button to control its visibility.
    • Code Example:
      import tkinter as tk
      
      class CollapsiblePane(tk.Frame):
          def __init__(self, master=None, **kwargs):
              super().__init__(master, **kwargs)
              self.visible = True
      
          def toggle(self):
              if self.visible:
                  self.grid_remove()
              else:
                  self.grid()
              self.visible = not self.visible
      
      root = tk.Tk()
      
      # Create a Tkinter collapsible pane with toggle button
      collapsible_pane = CollapsiblePane(root, width=200, height=100, bg='lightblue')
      collapsible_pane.grid(row=0, column=0, padx=10, pady=10)
      
      # Toggle button
      toggle_button = tk.Button(root, text="Toggle Pane", command=collapsible_pane.toggle)
      toggle_button.grid(row=1, column=0, pady=10)
      
      root.mainloop()
      
  9. Dynamic resizable panes in Tkinter:

    • Description: Implement dynamic resizable panes in Tkinter that can be adjusted based on user interaction.
    • Code Example:
      import tkinter as tk
      
      def resize_pane(event):
          new_width = event.width
          new_height = event.height
          frame.config(width=new_width, height=new_height)
      
      root = tk.Tk()
      
      # Create a resizable pane
      frame = tk.Frame(root, width=200, height=100, bg='lightblue')
      frame.grid(row=0, column=0, padx=10, pady=10)
      frame.bind("<Configure>", resize_pane)
      
      root.mainloop()