From https://stackoverflow.com/a/45211583 - code below - how can I get the "Change Color" button to change the color of the last-clicked frame? That is, instead of boxes[0], somehow have a dynamic index.
Things I considered but did not work out:
Adding "metadata" to the Frame (e.g. ttk Frame with 'text' field), but if using ttk then I cannot set bg the same.
Getting event.x/y, which did not help, and x_root/y_root are relative to the top of the screen, not the Python window, so not helpful.
Having a self.last_clicked variable and getter within ManyBoxes class, but not sure how to populate it so here I am...
class Navbar(tk.Frame):
def __init__(self, parent):
self.parent = parent
super().__init__(self.parent)
tk.Label(self.parent, text='Navbar').pack()
tk.Button(self.parent, text='Change Color', command=self.change_color).pack()
def change_color(self):
# access upwards to MainApp, then down through Main, then ManyBoxes
self.parent.main.many_boxes.boxes[0].config(bg='black')
class ManyBoxes(tk.Frame):
def __init__(self, parent):
self.parent = parent
super().__init__(self.parent)
self.boxes = []
self.create_boxes()
def button_action(self, e):
print('%s was clicked' % e.widget['bg'])
def create_boxes(self):
colors = ['red', 'green', 'blue', 'yellow']
c = 0
for n in range(2):
for m in range(2):
box = tk.Frame(self, width=100, height=100, bg=colors[c])
box.bind('<Button-1>', self.button_action)
box.grid(row=n, column=m)
self.boxes.append(box)
c += 1
class Main(tk.Frame):
def __init__(self, parent):
super().__init__(parent)
self.parent = parent
self.many_boxes = ManyBoxes(self)
self.many_boxes.pack()
class MainApp(tk.Frame):
def __init__(self, parent):
super().__init__(parent)
self.navbar = Navbar(self)
self.navbar.pack(fill=tk.Y)
self.main = Main(self)
self.main.pack(fill=tk.BOTH, expand=True)
if __name__ == "__main__":
root = tk.Tk()
MainApp(root).pack()
root.mainloop()
