英文:
Tkinter Entry Box Font not changing with default
问题
我有一个正在构建的应用程序的GUI，我想让用户有选择地更新字体样式和大小。以下是我迄今为止所做的工作，这可以更改按钮和标签上的字体，但它不会更改任何Entry()小部件的字体，而这可能是我希望用户能够更改的最重要的文本。我知道我可以通过提供类似这样的内容来初始化Entry()小部件字体：font=('Arial Bold', 16)，这确实有效，但它不允许用户有任何控制。
我确实发现您可以使用.config(font=('Arial Bold', 16))更改特定小部件。所以从理论上讲，我可以在我的apply_font()函数中为每个Entry()小部件包含这个，但那不可能是唯一的方法，对吧？我想应该有一种方法可以全局编辑所有Entry()小部件使用的字体。
我该如何完成这个任务？
def call_font_window():font_window = tk.Toplevel()font_window.title('Fonts')font_window.resizable(False, False)font_window.geometry('350x150')font_window.grid_columnconfigure(1, weight=1)font_type_label = tk.Label(font_window, text='Font Type: ')font_size_label = tk.Label(font_window, text='Font Size: ')font_type_options = [def_family, 'Calibri', 'Arial', 'Arial Bold', 'Times New Roman']font_size_options = [def_size, 10, 12, 14, 16]font_type_entry = tk.OptionMenu(font_window, font_type_var, *font_type_options)font_size_entry = tk.OptionMenu(font_window, font_size_var, *font_size_options)font_type_label.grid(row=0, column=0, sticky='NEW')font_size_label.grid(row=1, column=0, sticky='NEW')font_type_entry.grid(row=0, column=1, sticky='NEW')font_size_entry.grid(row=1, column=1, sticky='NEW')def apply_font():def_font.configure(family=font_type_var.get(), size=font_size_var.get())apply_button = tk.Button(font_window, text='Apply', command=apply_font)apply_button.grid(row=2, column=1, sticky='NEW')font_window.grab_set()font_window.mainloop()# 在这里放置其余的代码...
希望这可以帮助你全局更改所有Entry()小部件的字体。
英文:
I have a GUI for an application I am building, and I want to give users the option to update the font style and size. Below is what I have done so far and this works for changing the font on buttons & labels, but it doesn't change the font of any of the Entry() widgets, which is probably the most important text I want the user to be able to change. I know I can initialize the Entry() widget font by providing something like this font=('Arial Bold', 16) which works, but it doesn't allow the user any control.
I did figure out that you can change specific widgets using .config(font=('Arial Bold', 16)). So theoretically, I could include this in my apply_font() function for every Entry() widget, but that can't be the only way, right? I imagine there has to be a way to globally edit the font all Entry() widgets use.
How can I accomplish this?
def call_font_window():font_window = tk.Toplevel()font_window.title('Fonts')font_window.resizable(False, False)font_window.geometry('350x150')font_window.grid_columnconfigure(1, weight=1)font_type_label = tk.Label(font_window, text='Font Type: ')font_size_label = tk.Label(font_window, text='Font Size: ')font_type_options = [def_family, 'Calibri', 'Arial', 'Arial Bold', 'Times New Roman']font_size_options = [def_size, 10, 12, 14, 16]font_type_entry = tk.OptionMenu(font_window, font_type_var, *font_type_options)font_size_entry = tk.OptionMenu(font_window, font_size_var, *font_size_options)font_type_label.grid(row=0, column=0, sticky='NEW')font_size_label.grid(row=1, column=0, sticky='NEW')font_type_entry.grid(row=0, column=1, sticky='NEW')font_size_entry.grid(row=1, column=1, sticky='NEW')def apply_font():def_font.configure(family=font_type_var.get(), size=font_size_var.get())apply_button = tk.Button(font_window, text='Apply', command=apply_font)apply_button.grid(row=2, column=1, sticky='NEW')font_window.grab_set()font_window.mainloop()...def_font = font.nametofont("TkDefaultFont")def_family = copy.deepcopy(def_font['family'])def_size = copy.deepcopy(def_font['size'])font_type_var = tk.StringVar(value=def_font['family'])font_size_var = tk.IntVar(value=def_font['size'])menubar = tk.Menu(root)view_options = tk.Menu(menubar, tearoff=0)view_options.add_command(label="Font", command=call_font_window)view_options.add_separator()menubar.add_cascade(label="View", menu=view_options)root.config(menu=menubar)...
答案1
得分: 2
所有小部件的字体未由TkDefaultFont字体指定。转到TkDocs教程-字体 标准字体部分以获取更多信息。
最好将apply_font函数更改为以下内容：
def apply_font():font_ = font.nametofont("TkDefaultFont")font_.configure(family=font_type_var.get(), size=font_size_var.get())font_ = font.nametofont("TkTextFont")font_.configure(family=font_type_var.get(), size=font_size_var.get())
英文:
All the widgets fonts do not specifies by TkDefaultFont font. Go to TkDocs Tutorial - Fonts Standard Fonts section for more information.
You had better chage apply_font function as follow:
def apply_font():font_ = font.nametofont("TkDefaultFont")font_.configure(family=font_type_var.get(), size=font_size_var.get())font_ = font.nametofont("TkTextFont")font_.configure(family=font_type_var.get(), size=font_size_var.get())
答案2
得分: 0
我找到了一个解决方案，尽管我认为这不是最佳方法，所以如果有其他方法，请提供替代方案。
我导入了gc（垃圾回收器），并将以下内容添加到我的apply_font函数中：
for obj in gc.get_referrers(tk.Entry):if obj.__class__ is tk.Entry:obj.config(font=(font_type_var.get(), font_size_var.get()))
目前我认为这是一个胜利，因为它可以做我想做的事情。
英文:
I figured out a solution, though I don't think it is the best way to go about this so please provide alternatives if they are available.
I imported gc (garbage collector) and added the following to my apply_font function:
for obj in gc.get_referrers(tk.Entry):if obj.__class__ is tk.Entry:obj.config(font=(font_type_var.get(), font_size_var.get()))
I'm calling this a win for now as it does the thing I'd like it to do.
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