我正在使用Python 2.7中的Tkinter进行简单的测验应用程序的GUI。
到目前为止,我已经开始设置我的框架。我在一个名为results_txtbx
的文本小部件中放置一个滚动条,向上和向下滚动一个列表,注明玩家在每个问题上的表现。我一直在使用grid
,因为我更容易管理。
from Tkinter import *
class Q_and_A:
def __init__(self, master):
frame = Frame(master)
Label(master).grid(row = 4)
results_txtbx = Text(master)
results_scrbr = Scrollbar(results_txtbx)
results_scrbr.grid(sticky = NS + E)
results_txtbx.config(width = 20, height = 4, wrap = NONE, yscrollcommand = results_scrbr.set)
results_txtbx.grid(row = 3, column = 1, padx = 12, sticky = W)
root = Tk()
root.wm_title("Question and Answer")
root.resizable(0, 0)
app = Q_and_A(root)
root.mainloop()
当运行时,results_txtbx
会调整大小以适应滚动条。有没有办法让它使用grid
保持原始大小?
答案 0 :(得分:3)
您不希望将文本小部件用作滚动条的主控。与任何其他窗口小部件一样,如果您在文本窗口小部件中打包或网格化滚动条,则文本窗口小部件将缩小或展开以适合滚动条。这是你问题的症结所在。
相反,创建一个单独的框架(您已经在做),并使用该框架作为文本窗口小部件和滚动条的父框架。如果您想要滚动条位于其中的外观,请将文本小部件的边框宽度设置为零,然后为包含的框架指定一个小边框。
作为最终的可用性提示,我建议不使窗口不可调整大小。您的用户可能比您更了解他们想要的窗口大小。不要将控制权从用户手中夺走。
这是(大致)我将如何实现您的代码:
import Tkinter as tk
而不是from Tkinter import *
,因为全球导入通常是一个坏主意。 Q_and_A
作为tk.Frame
的子类,以便将其视为小部件。 这是最终结果:
import Tkinter as tk
class Q_and_A(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master, borderwidth=1, relief="sunken")
self.label = tk.Label(self)
self.results_txtbx = tk.Text(self, width=20, height=4, wrap="none",
borderwidth=0, highlightthickness=0)
self.results_scrbr = tk.Scrollbar(self, orient="vertical",
command=self.results_txtbx.yview)
self.results_txtbx.configure(yscrollcommand=self.results_scrbr.set)
self.label.grid(row=1, columnspan=2)
self.results_scrbr.grid(row=0, column=1, sticky="ns")
self.results_txtbx.grid(row=0, column=0, sticky="nsew")
self.grid_rowconfigure(0, weight=1)
self.grid_columnconfigure(0, weight=1)
root = tk.Tk()
root.wm_title("Question And Answer")
app = Q_and_A(root)
app.pack(side="top", fill="both", expand=True)
root.mainloop()
答案 1 :(得分:1)
在results_scrbr.grid(row = 3, column = 2)
旁边设置results_txtbx.grid(row = 3,column = 1, padx = 4)
,不需要sticky
,因为窗口不可调整大小,并且我降低了padx,因此滚动条更靠近文本。
另外,为了使results_txtbx可以垂直滚动,请添加results_scrbr.config(command=results_txtbx.yview)
这是一个有效的代码......
from Tkinter import *
class Q_and_A:
def __init__(self, master):
frame = Frame(master)
Label(master).grid(row = 4)
results_txtbx = Text(master)
results_scrbr = Scrollbar(master)
results_scrbr.grid(row = 3, column = 2)
results_scrbr.config(command=results_txtbx.yview)
results_txtbx.config(width = 20, height = 4,
wrap = NONE, yscrollcommand = results_scrbr.set)
results_txtbx.grid(row = 3, column = 1, padx = 4)
root = Tk()
root.wm_title("Question and Answer")
root.resizable(0, 0)
app = Q_and_A(root)
root.mainloop()
答案 2 :(得分:0)
我实施的解决方案:
我需要向应用添加更多小部件,因此我将Scrollbar
和Text
小部件绑定到另一个标签,并将其放在正确的列中,代码(为了便于阅读而修剪)如下: / p>
import Tkinter as tk
class Q_and_A(tk.Frame):
def __init__(self, master):
tk.Frame.__init__(self, master)
self.label = tk.Label(self)
#Set up menu strip
self.main_menu = tk.Menu(self)
self.file_menu = tk.Menu(self.main_menu, tearoff = 0)
self.file_menu.add_command(label = "Exit", command = self.quit)
self.main_menu.add_cascade(label = "File", menu = self.file_menu)
self.master.config(menu = self.main_menu)
#Set up labels
self.question_lbl = tk.Label(self, text = "Question #: ", padx = 12, pady = 6)
self.question_lbl.grid(row = 0, sticky = "w")
tk.Label(self, text = "Hint: ").grid(row = 1, sticky = "w", padx = 12, pady = 6)
tk.Label(self, text = "Answer: ").grid(row = 2, sticky = "w", padx = 12, pady = 6)
tk.Label(self, text = "Results: ").grid(row = 3, sticky = "nw", padx = 12, pady = 6)
tk.Label(self).grid(row = 4)
#Set up textboxes
self.question_txtbx = tk.Entry(self)
self.question_txtbx.config(width = 60)
self.question_txtbx.grid(row = 0, column = 1, padx = 12, columnspan = 3, sticky = "w")
self.help_txtbx = tk.Entry(self)
self.help_txtbx.config(width = 40)
self.help_txtbx.grid(row = 1, column = 1, columnspan = 2, padx = 12, sticky = "w")
self.answer_txtbx = tk.Entry(self)
self.answer_txtbx.config(width = 40)
self.answer_txtbx.grid(row = 2, column = 1, columnspan = 2, padx = 12, sticky = "w")
self.results_label = tk.Label(self)
self.results_txtbx = tk.Text(self.results_label, width = 10, height = 4, wrap = "none", borderwidth = 1, highlightthickness = 1)
self.results_scrbr = tk.Scrollbar(self.results_label, orient = "vertical", command = self.results_txtbx.yview)
self.results_txtbx.configure(yscrollcommand = self.results_scrbr.set)
self.label.grid(row = 1)
self.results_label.grid(row = 3, column = 1, padx = 11, sticky = "w")
self.results_scrbr.grid(row = 0, column = 1, sticky = "nse")
self.results_txtbx.grid(row = 0, column = 0, sticky = "w")
root = tk.Tk()
root.wm_title("Question and Answer")
#A note: The window is non-resizable due to project specifications.
root.resizable(0, 0)
app = Q_and_A(root)
app.pack(side = "top", fill = "both")
root.mainloop()
我将存储在嵌套标签中作为我自己的参考,因为当我需要将事物放在一起时,除非有某些原因应该避免。在这里工作得很好。感谢Bryan的建议。