如何在tkinter窗口中添加滚动条？

Question

如何在tkinter窗口中添加滚动条？

12

我有一个tkinter程序：

import urllib.request
from tkinter import *


root = Tk()
root.iconbitmap(default='icon.ico')
root.wm_title('Got Skills\' Skill Tracker')
frame = Frame(width="500",height="500")
frame.pack()


def show():
  name = "zezima"
  page = urllib.request.urlopen('http://hiscore.runescape.com/index_lite.ws?player=' + name)
  page = page.readlines()

  skills = []
  for line in page:
    skills.append([line.decode("utf-8").replace("\n", "").split(",")])

  skills = skills[0:25]

  for item in skills:
    toPrint = item[0][0],"-",item[0][1],"-",item[0][1],"\n"
    w = Message(frame, text=toPrint)
    w.pack()


menu = Menu(root)
root.config(menu=menu)

filemenu = Menu(menu)
menu.add_cascade(label="Commands", menu=filemenu)
filemenu.add_command(label="Show Skills", command=show)


root.mainloop()

当我运行上述脚本时，它显示了这个（很好）： alt text http://img708.imageshack.us/img708/8821/tkinter1.png 当我点击命令>显示技能时，它变成了这样。虽然它显示了正确的内容，但是...我可以想象你看到了问题。

两个问题： -如何向框架添加滚动条，并保持框架大小固定？（理想情况下，保持第一幅图像的大小，添加show()的输出，将滚动条添加到程序的第一幅图像。） -使用以下代码：

  for item in skills:
    toPrint = item[0][0],"-",item[0][1],"-",item[0][2],"\n"
    w = Message(frame, text=toPrint)
    w.pack()

这是输出我所需内容的最佳方式吗？列表 (skills) 看起来像 [[1,2,3],[4,5,6]..]，我想在一行上显示1-2-3，另一行上显示4-5-6等。

但是，我不希望它们之间有额外的空行，我想知道我现在的方法是否是最佳实践。

- Andrew

2个回答

1

这里是一个用于滚动框架的类。只需像传统的tkinter样式一样传递窗口对象，并使用obj.frame作为新小部件的窗口即可。

class ScrollableFrame:
    """
    # How to use class
    from tkinter import *
    obj = ScrollableFrame(master,height=300 # Total required height of canvas,width=400 # Total width of master)
    objframe = obj.frame
    # use objframe as the main window to make widget
    """
    def __init__ (self,master,width,height,mousescroll=0):
        self.mousescroll = mousescroll
        self.master = master
        self.height = height
        self.width = width
        self.main_frame = Frame(self.master)
        self.main_frame.pack(fill=BOTH,expand=1)

        self.scrollbar = Scrollbar(self.main_frame, orient=VERTICAL)
        self.scrollbar.pack(side=RIGHT,fill=Y)

        self.canvas = Canvas(self.main_frame,yscrollcommand=self.scrollbar.set)
        self.canvas.pack(expand=True,fill=BOTH)

        self.scrollbar.config(command=self.canvas.yview)

        self.canvas.bind('<Configure>', lambda e: self.canvas.configure(scrollregion = self.canvas.bbox("all")))

        self.frame = Frame(self.canvas,width=self.width,height=self.height)
        self.frame.pack(expand=True,fill=BOTH)
        self.canvas.create_window((0,0), window=self.frame, anchor="nw")

        self.frame.bind("<Enter>", self.entered)
        self.frame.bind("<Leave>", self.left)

    def _on_mouse_wheel(self,event):
        self.canvas.yview_scroll(-1 * int((event.delta / 120)), "units")

    def entered(self,event):
        if self.mousescroll:
            self.canvas.bind_all("<MouseWheel>", self._on_mouse_wheel)
        
    def left(self,event):
        if self.mousescroll:
            self.canvas.unbind_all("<MouseWheel>")

- Kanwar Adnan

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- abbot · Accepted Answer

要添加滚动条，请使用tkinter.tix.ScrolledWindow。

要去除多余的空格，请删除额外的“\n”并显示字符串，而不是元组。以下是完整代码：

import urllib.request
from tkinter import *
from tkinter.tix import *

root = Tk()
root.iconbitmap(default='icon.ico')
root.wm_title('Got Skills\' Skill Tracker')
frame = Frame(width="500",height="500")
frame.pack()
swin = ScrolledWindow(frame, width=500, height=500)
swin.pack()
win = swin.window


def show():
  name = "zezima"
  page = urllib.request.urlopen('http://hiscore.runescape.com/index_lite.ws?player=' + name)
  page = page.readlines()

  skills = []
  for line in page:
    skills.append([line.decode("utf-8").replace("\n", "").split(",")])

  skills = skills[0:25]

  for item in skills:
    toPrint = item[0][0],"-",item[0][1],"-",item[0][1]
    w = Message(win, text=' '.join(toPrint), width=500)
    w.pack()


menu = Menu(root)
root.config(menu=menu)

filemenu = Menu(menu)
menu.add_cascade(label="Commands", menu=filemenu)
filemenu.add_command(label="Show Skills", command=show)


root.mainloop()