Question

我想制作GUI，我想将GUI分成几个类。（注意：我对编程很新）。在主类中，我将调用实例（GUI的一部分）并使用网格来创建完整的GUI。问题是我认为在我的主类中应该决定放置实例的位置，但只显示最后一个实例。

import tkinter as tk
import tkinter.ttk as ttk

class Code(tk.Frame):
    def __init__(self, parent, *args):
        tk.Frame.__init__(self, parent)

        self.frm = ttk.LabelFrame(parent, text="frm_code", height=130, width=500)
        # make grid with just one cell - I thought this is local grid placement
        self.frm.grid(row=0, column=0, sticky=(tk.N, tk.S, tk.W, tk.E))
        self.frm.grid_propagate(False)

        self.mess_sql = tk.Message(
            self.frm,
            text="""Veeeery long text""",
            width = 470
        )
        self.mess_sql.grid(row=0, column=0, sticky=(tk.N, tk.S, tk.W, tk.E))

class Header(tk.Frame):
    def __init__(self, parent):
        tk.Frame.__init__(self, parent)

        self.frm = ttk.LabelFrame(parent, text="frm_header")
        # make grid with just one cell - I thought this is local grid placement
        self.frm.grid(row=0, column=0, sticky=(tk.N, tk.S, tk.W, tk.E))

        self.btn_ok = ttk.Button(self.frm, text="OK", command=self.click_ok)
        self.btn_cancel= ttk.Button(self.frm, text="Cancel", command=self.click_cancel)

        self.btn_ok.grid(row=0, column=0)
        self.btn_cancel.grid(row=0, column=1)

    # just some test functions
    def click_ok(self):
        print("OK clicked")
    def click_cancel(self):
        print("Cancel clicked")

class App(tk.Frame):
    def __init__(self, parent):
        tk.Frame.__init__(self, parent)

        self.header = Header(parent)
        self.code = Code(parent)

        # this should place widgets, but for now does nothing
        self.header.grid(row=0, column=0)
        self.header.grid(row=1, column=0)

if __name__ == '__main__':
    root = tk.Tk()
    app = App(root)
    root.mainloop()

tkinter实例未显示

0 个答案: