Tkinter文本小部件非常强大，但是您必须自己做一些高级功能。它没有内置的拼写检查或用于加粗文本等的内置按钮，但是它们非常易于实现。所有功能都在小部件中，您只需要知道如何做即可。
以下示例为您提供了一个按钮，用于切换突出显示的文本的粗体状态-选择一个字符范围，然后单击该按钮以添加然后删除粗体属性。您可以很容易地扩展此示例的字体和颜色。
拼写检查也很容易。下面的示例使用/ usr / share / dict / words中的单词（几乎肯定在Windows 7中不存在，因此您需要提供一个合适的单词列表）。由于它仅进行拼写检查，因此非常简单当您按下空格键时，这仅仅是为了将示例的代码大小保持在最小水平。在现实世界中，您希望在进行拼写检查时更加聪明。
import Tkinter as tk
import tkFont
class App(tk.Tk):
def __init__(self):
tk.Tk.__init__(self)
## Toolbar
self.toolbar = tk.Frame()
self.bold = tk.Button(name="toolbar", text="bold",
borderwidth=1, command=self.OnBold,)
self.bold.pack(in_=self.toolbar, side="left")
## Main part of the GUI
# I'll use a frame to contain the widget and
# scrollbar; it looks a little nicer that way...
text_frame = tk.Frame(borderwidth=1, relief="sunken")
self.text = tk.Text(wrap="word", background="white",
borderwidth=0, highlightthickness=0)
self.vsb = tk.Scrollbar(orient="vertical", borderwidth=1,
command=self.text.yview)
self.text.configure(yscrollcommand=self.vsb.set)
self.vsb.pack(in_=text_frame,side="right", fill="y", expand=False)
self.text.pack(in_=text_frame, side="left", fill="both", expand=True)
self.toolbar.pack(side="top", fill="x")
text_frame.pack(side="bottom", fill="both", expand=True)
# clone the text widget font and use it as a basis for some
# tags
bold_font = tkFont.Font(self.text, self.text.cget("font"))
bold_font.configure(weight="bold")
self.text.tag_configure("bold", font=bold_font)
self.text.tag_configure("misspelled", foreground="red", underline=True)
# set up a binding to do simple spell check. This merely
# checks the prevIoUs word when you type a space. For production
# use you'll need to be a bit more intelligent about when
# to do it.
self.text.bind("<space>", self.Spellcheck)
# initialize the spell checking dictionary. YMMV.
self._words=open("/usr/share/dict/words").read().split("\n")
def Spellcheck(self, event):
'''Spellcheck the word preceeding the insertion point'''
index = self.text.search(r'\s', "insert", backwards=True, regexp=True)
if index == "":
index ="1.0"
else:
index = self.text.index("%s+1c" % index)
word = self.text.get(index, "insert")
if word in self._words:
self.text.tag_remove("misspelled", index, "%s+%dc" % (index, len(word)))
else:
self.text.tag_add("misspelled", index, "%s+%dc" % (index, len(word)))
def OnBold(self):
'''Toggle the bold state of the selected text'''
# toggle the bold state based on the first character
# in the selected range. If bold, unbold it. If not
# bold, bold it.
current_tags = self.text.tag_names("sel.first")
if "bold" in current_tags:
# first char is bold, so unbold the range
self.text.tag_remove("bold", "sel.first", "sel.last")
else:
# first char is normal, so bold the whole selection
self.text.tag_add("bold", "sel.first", "sel.last")
if __name__ == "__main__":
app=App()
app.mainloop()
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