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Python-Tkinter滚动条框架

Python-Tkinter滚动条框架

请注意,建议的代码仅适用于Python 2

这是一个例子:

from Tkinter import *   # from x import * is bad practice
from ttk import *

# http://tkinter.unpythonic.net/wiki/VerticalScrolledFrame

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, *args, **kw):
        Frame.__init__(self, parent, *args, **kw)            

        # create a canvas object and a vertical scrollbar for scrolling it
        vscrollbar = Scrollbar(self, orient=VERTICAL)
        vscrollbar.pack(fill=Y, side=RIGHT, expand=FALSE)
        canvas = Canvas(self, bd=0, highlightthickness=0,
                        yscrollcommand=vscrollbar.set)
        canvas.pack(side=LEFT, fill=BOTH, expand=TRUE)
        vscrollbar.config(command=canvas.yview)

        # reset the view
        canvas.xview_moveto(0)
        canvas.yview_moveto(0)

        # create a frame inside the canvas which will be scrolled with it
        self.interior = interior = Frame(canvas)
        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)


if __name__ == "__main__":

    class SampleApp(Tk):
        def __init__(self, *args, **kwargs):
            root = Tk.__init__(self, *args, **kwargs)


            self.frame = VerticalScrolledFrame(root)
            self.frame.pack()
            self.label = Label(text="Shrink the window to activate the scrollbar.")
            self.label.pack()
            buttons = []
            for i in range(10):
                buttons.append(Button(self.frame.interior, text="Button " + str(i)))
                buttons[-1].pack()

    app = SampleApp()
    app.mainloop()

它尚未将鼠标滚轮绑定到滚动条,但是可以的。但是,使用滚轮滚动可能会有些颠簸。

编辑:

到1) 恕我直言,滚动帧在Tkinter中有些棘手,而且似乎做得并不多。似乎没有优雅的方法可以做到这一点。 代码一个问题是你必须手动设置画布大小-这就是我发布的示例代码解决的问题。

至2) 你在谈论数据功能?Place也对我有用。(总的来说,我更喜欢网格)。

到3) 好吧,它将窗口放置在画布上。

我注意到的一件事是,你的示例认情况下会处理鼠标滚轮滚动,而我发布的示例则不会。一定要看一下。

python 2022/1/1 18:24:44 有163人围观

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