Взяв за основу Saad код, я изменил его, чтобы он работал на каждом SO (win, linux, mac), используя yview_moveto
, и я применил некоторые модификации, как я объясняю здесь.
РЕДАКТИРОВАТЬ: Я отредактировал код, чтобы показать полный класс.
class VerticalScrolledFrame(Frame):
"""A pure Tkinter scrollable frame that actually works!
* Use the 'interior' attribute to place widgets inside the scrollable frame
* Construct and pack/place/grid normally
* This frame only allows vertical scrolling
"""
def __init__(self, parent, bg,*args, **kw):
Frame.__init__(self, parent, *args, **kw)
# create a canvas object and a vertical scrollbar for scrolling it
canvas = Canvas(self, bd=0, highlightthickness=0,bg=bg)
canvas.pack(side=LEFT, fill=BOTH, expand=TRUE)
# reset the view
canvas.xview_moveto(0)
canvas.yview_moveto(0)
self.canvasheight = 2000
# create a frame inside the canvas which will be scrolled with it
self.interior = interior = Frame(canvas,height=self.canvasheight,bg=bg)
interior_id = canvas.create_window(0, 0, window=interior,anchor=NW)
# track changes to the canvas and frame width and sync them,
# also updating the scrollbar
def _configure_interior(event):
# update the scrollbars to match the size of the inner frame
size = (interior.winfo_reqwidth(), interior.winfo_reqheight())
canvas.config(scrollregion="0 0 %s %s" % size)
if interior.winfo_reqwidth() != canvas.winfo_width():
# update the canvas's width to fit the inner frame
canvas.config(width=interior.winfo_reqwidth())
interior.bind('<Configure>', _configure_interior)
def _configure_canvas(event):
if interior.winfo_reqwidth() != canvas.winfo_width():
# update the inner frame's width to fill the canvas
canvas.itemconfigure(interior_id, width=canvas.winfo_width())
canvas.bind('<Configure>', _configure_canvas)
self.offset_y = 0
self.prevy = 0
self.scrollposition = 1
def on_press(event):
self.offset_y = event.y_root
if self.scrollposition < 1:
self.scrollposition = 1
elif self.scrollposition > self.canvasheight:
self.scrollposition = self.canvasheight
canvas.yview_moveto(self.scrollposition / self.canvasheight)
def on_touch_scroll(event):
nowy = event.y_root
sectionmoved = 15
if nowy > self.prevy:
event.delta = -sectionmoved
elif nowy < self.prevy:
event.delta = sectionmoved
else:
event.delta = 0
self.prevy= nowy
self.scrollposition += event.delta
canvas.yview_moveto(self.scrollposition/ self.canvasheight)
self.bind("<Enter>", lambda _: self.bind_all('<Button-1>', on_press), '+')
self.bind("<Leave>", lambda _: self.unbind_all('<Button-1>'), '+')
self.bind("<Enter>", lambda _: self.bind_all('<B1-Motion>', on_touch_scroll), '+')
self.bind("<Leave>", lambda _: self.unbind_all('<B1-Motion>'), '+')