Dynamische vertikale und horizontale Scrollbar

Durch Hilfe von Stack Overflow wurde eine dynamische Scrollbar implementiert. Diese erscheint je nach Windowgröße dynamisch. 
(siehe hierzu: https://stackoverflow.com/questions/47008899/tkinter-dynamic-scrollbar-for-a-dynamic-gui-not-updating-with-gui)

Code/Dyschromasie-Applikation.py

@@ -162,10 +162,70 @@ class Tritanopie(Dyschromasie):
 
         return self.sim_image
 
+class AutoScrollbar(tk.Scrollbar):
+   # A scrollbar that hides itself if it's not needed.
+   # Only works if you use the grid geometry manager!
+    def set(self, lo, hi):
+        if float(lo) <= 0.0 and float(hi) >= 1.0:
+            # grid_remove is currently missing from Tkinter!
+            self.tk.call("grid", "remove", self)
+        else:
+            self.grid()
+        tk.Scrollbar.set(self, lo, hi)
+    def pack(self, **kw):
+        raise TclError("cannot use pack with this widget")
+    def place(self, **kw):
+        raise TclError("cannot use place with this widget")
+
+class ScrollFrame:
+    def __init__(self, master):
+
+        self.vscrollbar = AutoScrollbar(master)
+        self.vscrollbar.grid(row=0, column=1, sticky='ns')
+        self.hscrollbar = AutoScrollbar(master, orient='horizontal')
+        self.hscrollbar.grid(row=1, column=0, sticky='ew')
+
+        self.canvas = tk.Canvas(master, yscrollcommand=self.vscrollbar.set,
+                        xscrollcommand=self.hscrollbar.set)
+        self.canvas.grid(row=0, column=0, sticky='nsew')
+
+        self.vscrollbar.config(command=self.canvas.yview)
+        self.hscrollbar.config(command=self.canvas.xview)
+
+        # make the canvas expandable
+        master.grid_rowconfigure(0, weight=1)
+        master.grid_columnconfigure(0, weight=1)
+
+        # create frame inside canvas
+        self.frame = tk.Frame(self.canvas)
+        self.frame.rowconfigure(1, weight=1)
+        self.frame.columnconfigure(1, weight=1)
+
+        # update the frame
+        self.frame.bind("<Configure>", self.reset_scrollregion)
+
+    def reset_scrollregion(self, event):
+        self.canvas.configure(scrollregion=self.canvas.bbox('all'))
+
+    def update(self):
+        self.canvas.create_window(0, 0, anchor='nw', window=self.frame)
+        self.frame.update_idletasks()
+        self.canvas.config(scrollregion=self.canvas.bbox("all"))
+
+        if self.frame.winfo_reqwidth() != self.canvas.winfo_width():
+            # update the canvas's width to fit the inner frame
+            self.canvas.config(width = self.frame.winfo_reqwidth())
+        if self.frame.winfo_reqheight() != self.canvas.winfo_height():
+            # update the canvas's width to fit the inner frame
+            self.canvas.config(height = self.frame.winfo_reqheight())
+
 
 root = tk.Tk()
+
 root.title("Projekt Dyschromasie")
 
+SB = ScrollFrame(root)
+
 img = np.array([])
 rows = 0
 cols = 0
@@ -176,7 +236,7 @@ sim_deut = tk.IntVar(root)
 sim_tri = tk.IntVar(root)
 simGrad = tk.IntVar(root)
 
-simulationsGradient = tk.Scale(root, from_=0, to_=100, variable=simGrad, orient='horizontal')
+simulationsGradient = tk.Scale(SB.frame, from_=0, to_=100, variable=simGrad, orient='horizontal')
 simulationsGradient.grid(column= 0, row = 1, columnspan=10)
 
 def browse():
@@ -192,7 +252,7 @@ def browse():
 
         # Anzeigen des Bildes
         tkimage = ImageTk.PhotoImage(im)
-        myvar = tk.Label(root, image=tkimage)
+        myvar = tk.Label(SB.frame, image=tkimage)
         myvar.image = tkimage
         myvar.grid(columnspan=5)
 
@@ -209,53 +269,54 @@ def simulate():
         d = Deuteranopie(img, rows, cols, kanaele)
         display_array_deut = cv2.cvtColor(np.copy(d.Simulate()), cv2.COLOR_BGR2RGB)
 
-        T = tk.Text(root, height=1, width=15)
+        T = tk.Text(SB.frame, height=1, width=15)
         T.grid(columnspan=5)
         T.insert('current', "Deutranopie:")
 
         conv_SimulationPic_deut = ImageTk.PhotoImage(image=PIL.Image.fromarray(display_array_deut))
-        sim_pic_deut = tk.Label(root, image=conv_SimulationPic_deut)
+        sim_pic_deut = tk.Label(SB.frame, image=conv_SimulationPic_deut)
         sim_pic_deut.Image = conv_SimulationPic_deut
         sim_pic_deut.grid(columnspan=5)
     elif sim_tri.get():
         t = Tritanopie(img, rows, cols, kanaele)
         display_array_tri = cv2.cvtColor(np.copy(t.Simulate()), cv2.COLOR_BGR2RGB)
 
-        T = tk.Text(root, height=1, width=15)
+        T = tk.Text(SB.frame, height=1, width=15)
         T.grid(columnspan=5)
         T.insert('current', "Tritanopie:")
 
         conv_SimulationPic_tri = ImageTk.PhotoImage(image=PIL.Image.fromarray(display_array_tri))
-        sim_pic_tri = tk.Label(root, image=conv_SimulationPic_tri)
+        sim_pic_tri = tk.Label(SB.frame, image=conv_SimulationPic_tri)
         sim_pic_tri.Image = conv_SimulationPic_tri
         sim_pic_tri.grid(columnspan=5)
     elif sim_pro.get():
         p = Protanopie(img, rows, cols, kanaele)
         display_array_pro = cv2.cvtColor(np.copy(p.Simulate()), cv2.COLOR_BGR2RGB)
 
-        T = tk.Text(root, height=1, width=15)
+        T = tk.Text(SB.frame, height=1, width=15)
         T.grid(columnspan=5)
         T.insert('current', "Protanopie:")
 
         conv_SimulationPic_pro = ImageTk.PhotoImage(image=PIL.Image.fromarray(display_array_pro))
-        sim_pic_pro = tk.Label(root, image=conv_SimulationPic_pro)
+        sim_pic_pro = tk.Label(SB.frame, image=conv_SimulationPic_pro)
         sim_pic_pro.Image = conv_SimulationPic_pro
         sim_pic_pro.grid(columnspan=5)
 
 
-btn = tk.Button(root, text="Browse", width=25, command=browse, bg='light blue')
+btn = tk.Button(SB.frame, text="Browse", width=25, command=browse, bg='light blue')
 btn.grid(column=0, row=0, columnspan=2)
 
-simulateButton = tk.Button(root, text="Simulate", width=25, command=simulate, bg='light blue')
+simulateButton = tk.Button(SB.frame, text="Simulate", width=25, command=simulate, bg='light blue')
 simulateButton.grid(column=1, row=0, columnspan=2)
 simulateButton.config(state='disabled')
 
-checkButton_p = tk.Checkbutton(root, text="Protanop", variable=sim_pro, onvalue=1, offvalue=0, height=5, width=20)
-checkButton_d = tk.Checkbutton(root, text="Deutanop", variable=sim_deut, onvalue=1, offvalue=0, height=5, width=20)
-checkButton_t = tk.Checkbutton(root, text="Tritanop", variable=sim_tri, onvalue=1, offvalue=0, height=5, width=20)
+checkButton_p = tk.Checkbutton(SB.frame, text="Protanop", variable=sim_pro, onvalue=1, offvalue=0, height=5, width=20)
+checkButton_d = tk.Checkbutton(SB.frame, text="Deutanop", variable=sim_deut, onvalue=1, offvalue=0, height=5, width=20)
+checkButton_t = tk.Checkbutton(SB.frame, text="Tritanop", variable=sim_tri, onvalue=1, offvalue=0, height=5, width=20)
 
 checkButton_p.grid(column=0, row=2)
 checkButton_d.grid(column=1, row=2)
 checkButton_t.grid(column=2, row=2)
 
+SB.update()
 root.mainloop()