Question

所以，我的python程序中有一些不同的小部件：infobar和texteditor在我的App类中;我的commandline课程中output和Terminal。但是当我运行程序时，命令行和输出显示在我的App窗口中。

class Terminal(Frame):
### A window used for running Terminal commands.

def __init__(self, master):
    ### Initialize the Terminal app.
    # Initialize frame
    frame = Frame(terminalroot)
    frame.pack()

    # Create fonts
    txtFont = tkFont.Font(family="Monaco",size=10)

    # Initilize Commandline.
    self.commandline = Text(wrap=None,font=txtFont,width=40,height=1)
    self.commandline.pack()

    # Initialize Output.
    self.output = Text(wrap=WORD,font=txtFont,width=40,height=30)
    self.output.pack()

class App(Frame):
### The main application window.
    def __init__(self, master):
    ### Initialize the program.
    ## Initialize the frame
    ##  Setup the frame.
    ##  Set the title of the window.
    ##  Pack the frame.
    ## Initialize random class variables.
    ## Create fonts.
    ##  txtFont: Monaco, size 10. Used for most of the text areas.
    ## Create and pack the editor.
    ##  Wrap text along words.
    ##  Set size to W120 and H20.
    ##  Insert a short message to the text editor.
    ##  Reset any undo/redos.
    ##  Pack the editor.
    ## Setup tags.
    ##  Alert, sel.
    ## Create and pack the info bar.
    ##  Set size to W120 and H1.
    ##  Insert Info bar to the info bar.
    ## Setup the menu bar.
    ##  File:
    ##   Save, ^S, save_it
    ##   Save as, ^[shift]S, save_it_as
    ##   Load, ^L, load_it_and_clear
    ##   Import, ^I, load_it
    ##  Edit:
    ##   Undo, ^Z, undo
    ##   Redo, ^Y, redo
    ##  Style:
    ##   Default, no shortcut, set_theme_default
    ##   White on Black, no shortcut, set_theme_wob
    ##   Homebrew, no shortcut, set_theme_hbrew
    ## Setup the popup menu.
    ##  Undo, ^Z, undo
    ##  Redo, ^Y, redo
    ## Bind various commands.
    ## Final configuration.
    self.frame = Frame(root, background="black")
    root.title("BasicEdit")
    self.frame.pack()

    self.filename = "Hello World.txt"

    txtFont = tkFont.Font(family="Monaco", size=10)

    self.texteditor = Text(wrap=WORD,font=txtFont,width=120,height=20)
    self.texteditor.insert(END, """Lorem epsum...""")
    self.texteditor.edit_reset()
    self.texteditor.pack()

    self.texteditor.tag_config("alert", foreground="white", background="black")
    self.texteditor.tag_config("sel", foreground="blue")

    self.infobar = Text(font=txtFont,height=1,width=120)
    self.infobar.insert(END, "Info bar")
    self.infobar.pack()

    self.menubar = Menu()
    self.filemenu = Menu(self.menubar, tearoff=0)
    self.filemenu.add_command(label="Save", command=self.save_it, accelerator="Ctrl+S")
    self.filemenu.add_command(label="Save as", command=self.save_it_as, accelerator="Ctrl+Shift+S")
    self.filemenu.add_command(label="Load", command=self.load_it_and_clear, accelerator="Ctrl+L")
    self.filemenu.add_command(label="Import", command=self.load_it, accelerator="Ctrl+I")
    self.editmenu = Menu(self.menubar, tearoff=0)
    self.editmenu.add_command(label="Undo", command=self.undo, accelerator="Ctrl+Z")
    self.editmenu.add_command(label="Redo", command=self.redo, accelerator="Ctrl+Y")
    self.stylemenu = Menu(self.menubar, tearoff=0)
    self.stylemenu.add_command(label="Default", command=self.set_theme_default)
    self.stylemenu.add_command(label="White on Black", command=self.set_theme_wob)
    self.stylemenu.add_command(label="Homebrew", command=self.set_theme_hbrew)
    self.menubar.add_cascade(label="File", menu=self.filemenu)
    self.menubar.add_cascade(label="Edit", menu=self.editmenu)
    self.menubar.add_cascade(label="Style", menu=self.stylemenu)

    self.popup = Menu(tearoff=1)
    self.popup.add_command(label="Undo", command=self.undo, accelerator="Ctrl+Z")
    self.popup.add_command(label="Redo", command=self.redo, accelerator="Ctrl+Y")
    root.bind("<Button-2>", self.rightmenu)

    root.bind("<Control-q>", self.quit)
    root.bind("<Control-Q>", self.quit)
    root.bind("<Control-s>", self.save_it)
    root.bind("<Control-S>", self.save_it)
    root.bind("<Control-l>", self.load_it_and_clear)
    root.bind("<Control-L>", self.load_it_and_clear)
    root.bind("<Control-i>", self.load_it)
    root.bind("<Control-I>", self.load_it)
    root.bind("<Control-z>", self.undo)
    root.bind("<Control-Z>", self.undo)
    root.bind("<Control-y>", self.redo)
    root.bind("<Control-Y>", self.redo)
    root.bind("<Key>", self.keyPress)

    self.set_theme_default()
    root.config(menu=self.menubar)

请注意，除了将我的小部件放在右侧窗口中之外，所有代码都有效。 Raw Paste

Answer 1

如果您没有告诉窗口小部件它的父窗口是什么，则默认为根窗口。在许多小部件中，您没有设置父窗口。您应始终定义父窗口。

在继承自Frame或Toplevel的类中定义小部件时尤其如此。当你这样做时，假设这个类是自包含的 - 所有东西都是那个类的孩子。当某些小部件成为根窗口的子代时，您的代码变得难以掌握，因为您无法对哪些小部件属于哪些父级进行任何假设。

注意您的终端类是Frame的子类，但是您将命令行和输出窗口放在根窗口内（由于不将其放在其他位置）：

class Terminal(Frame):
    def __init__(self, master):
        ...
        self.commandline = Text(wrap=None,font=txtFont,width=40,height=1)
        ...
        self.output = Text(wrap=WORD,font=txtFont,width=40,height=30)

同样地：

class App(Frame):
    def __init__(self, master):
        ...
        self.texteditor = Text(wrap=WORD,font=txtFont,width=120,height=20)

上述每个文本窗口小部件都应使用self作为Text窗口小部件的父窗口，以便子窗口小部件显示在Frame窗口小部件中。例如：

self.texteditor = text(self, wrap=WORD, ...)

设置为出现在多个窗口中的Tkinter窗口小部件显示在同一窗口中

1 个答案: