来自选定列表框项目的可滚动复选按钮

问题描述

如何将滚动条添加到每个列表框项至少有 20 个复选框的列表中?我希望复选框位于某种可以滚动的文本小部件中.这是来自 PREVIOUS POST.

How do you add a scroll bar to a list of atleast 20 checkboxes per listbox item? I want the checkboxes to be within some sort of text widget that can be scrolled. This is a continued question from PREVIOUS POST.

推荐答案

UPDATE 由于评论中的推理，请参阅:感谢 布莱恩奥克利 🙂:

UPDATE because of reasoning in the comments see: Thanks to Bryan Oakley 🙂 :

[带字典的版本]

import tkinter
from tkinter import *


def myfunction(event):
    canvas1.configure(scrollregion=canvas1.bbox("all"))


def onselect(evt):
    # Note here that Tkinter passes an event object to onselect()
    w = evt.widget
    x = 0
    index = int(w.curselection()[0])
    value = w.get(index)
    print('You selected item %d: "%s"' % (index, value))

    for y in enable:
        for item in list_for_listbox:
            checkbuttons[item][y][1].grid_forget()
        checkbuttons[value][y][1].grid(row=x, column=0)
        # Label(frame2, text="some text").grid(row=x, column=1)
        x += 1


def printcommand():
    for item in list_for_listbox:
        for y in enable:
            print(item + " [" + y + "] " + str(checkbuttons[item][y][0].get()))


master = tkinter.Tk()
master.title("Checkboxes test")
master.geometry("750x500")

# enable = ['button 1', 'button 2', 'button 3', 'button 4', 'button 5', 'button 6', 'button 7']
enable = []
for x_number_of_items in range(1, 15):
    enable.append("button " + str(x_number_of_items))

list_for_listbox = ["one", "two", "three", "four"]

listbox = Listbox(master)
listbox.place(x=5, y=5, width=100, height=10 + 16*len(list_for_listbox))
listbox.update()

frame1 = Frame(master, borderwidth=1, relief=GROOVE, highlightthickness=1, highlightbackground="black",
               highlightcolor="black")
frame1.place(x=listbox.winfo_width() + 10, y=5, width=300, height=listbox.winfo_height())
canvas1 = Canvas(frame1)
frame2 = Frame(canvas1, height=500)
scrollbar1 = Scrollbar(frame1, orient="vertical", command=canvas1.yview)
canvas1.configure(yscrollcomman=scrollbar1.set)
scrollbar1.pack(side="right", fill="y")
canvas1.pack(side="left")
canvas1.create_window((0, 0), window=frame2, anchor='nw')
frame2.bind("<Configure>", myfunction)

printbutton = Button(master, text="Print", command=printcommand)
printbutton.place(x=100, y=250)

checkbuttons = {}
for item in list_for_listbox:
    listbox.insert(END, item)
    checkbuttons[item] = (dict())
    for y in enable:
        temp_var = BooleanVar()
        checkbuttons[item][y] = [temp_var, Checkbutton(frame2, text=y, variable=temp_var)]

listbox.bind('<<ListboxSelect>>', onselect)

print(enable)

mainloop()

printcommand()

[带有动态变量的版本]

import tkinter
from tkinter import *


def myfunction(event):
    canvas1.configure(scrollregion=canvas1.bbox("all"))


def onselect(evt):
    # Note here that Tkinter passes an event object to onselect()
    w = evt.widget
    x = 0
    index = int(w.curselection()[0])
    value = w.get(index)
    print('You selected item %d: "%s"' % (index, value))

    for y in enable:
        for item in list_for_listbox:
            globals()["checkbox{}{}".format(item, y)].grid_forget()
        globals()["checkbox{}{}".format(value, y)].grid(row=x,column=0)  
        # here you can add Text
        x += 1


master = tkinter.Tk()
master.title("Checkboxes test")
master.geometry("750x500")

enable = ['button 1', 'button 2', 'button 3', 'button 4', 'button 5', 'button 6', 'button 7']
list_for_listbox = ["one", "two", "three", "four"]

listbox = Listbox(master)
listbox.place(x=5, y=5, width=100, height=10 + 16*len(list_for_listbox))
listbox.update()

frame1 = Frame(master, borderwidth=1, relief=GROOVE)
frame1.place(x=listbox.winfo_width() + 10, y=5, width=300, height=listbox.winfo_height())
canvas1 = Canvas(frame1)
frame2 = Frame(canvas1, height=500)
scrollbar1 = Scrollbar(frame1, orient="vertical", command=canvas1.yview)
canvas1.configure(yscrollcomman=scrollbar1.set)
scrollbar1.pack(side="right", fill="y")
canvas1.pack(side="left")
canvas1.create_window((0, 0), window=frame2, anchor='nw')
frame2.bind("<Configure>", myfunction)

for item in list_for_listbox:
    listbox.insert(END, item)
    for y in enable:
        globals()["var{}{}".format(item, y)] = BooleanVar()
        print("checkbox" + item + y)
        globals()["checkbox{}{}".format(item, y)] = Checkbutton(frame2, text=y,
                                                                variable=globals()["var{}{}".format(item, y)])

listbox.bind('<<ListboxSelect>>', onselect)

print(enable)

mainloop()

for item in list_for_listbox:
    for y in enable:
        print(item + " [" + y + "] " + str(globals()["var{}{}".format(item, y)].get()))

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