tkinter embed matplotlib toolbar removes buttons

Author: furas

tkinter/embed-matplotlib/NavigationToolbar-remove-buttons-from-toolbar.itemtoolsitem/main.py

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+#!/usr/bin/env python3 
+
+# date: 2019.12.03
+# https://stackoverflow.com/questions/59155873/how-to-remove-toolbar-button-from-navigationtoolbar2tk-figurecanvastkagg
+
+import tkinter
+
+from matplotlib.backends.backend_tkagg import (
+    FigureCanvasTkAgg, NavigationToolbar2Tk)
+# Implement the default Matplotlib key bindings.
+from matplotlib.backend_bases import key_press_handler
+from matplotlib.figure import Figure
+
+import numpy as np
+
+
+root = tkinter.Tk()
+root.wm_title("Embedding in Tk")
+
+fig = Figure(figsize=(5, 4), dpi=100)
+t = np.arange(0, 3, .01)
+fig.add_subplot(111).plot(t, 2 * np.sin(2 * np.pi * t))
+
+canvas = FigureCanvasTkAgg(fig, master=root)  # A tk.DrawingArea.
+canvas.draw()
+canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)
+
+# ---
+
+# remove button `Pan` from toolbar
+NavigationToolbar2Tk.toolitems = [t for t in NavigationToolbar2Tk.toolitems if
+                 t[0] not in ('Pan',)]
+
+# ---
+
+toolbar = NavigationToolbar2Tk(canvas, root)
+toolbar.update()
+
+print(toolbar.toolitems)
+
+# ---
+
+
+toolbar.children['!button4'].pack_forget()
+
+# --- 
+#To remove Pan button - it is 4th button
+
+toolbar.children['!button4'].pack_forget()
+
+#To assign new function to existing button - ie. Home
+
+def my_function():
+    print("Pressed Home")
+
+toolbar.children['!button1'].config(command=my_function)
+
+# ---
+
+canvas.get_tk_widget().pack(side=tkinter.TOP, fill=tkinter.BOTH, expand=1)
+
+
+def on_key_press(event):
+    print("you pressed {}".format(event.key))
+    key_press_handler(event, canvas, toolbar)
+
+canvas.mpl_connect("key_press_event", on_key_press)
+
+
+def _quit():
+    root.quit()     # stops mainloop
+    root.destroy()  # this is necessary on Windows to prevent
+                    # Fatal Python Error: PyEval_RestoreThread: NULL tstate
+
+button = tkinter.Button(master=root, text="Quit", command=_quit)
+button.pack(side=tkinter.BOTTOM)
+
+label = tkinter.Button(master=root, text="Label")
+label.pack(side=tkinter.BOTTOM)
+
+tkinter.mainloop()
+# If you put root.destroy() here, it will cause an error if the window is
+# closed with the window manager.