如何更改 wxPython TextCtrl 中特定单词的颜色？

Question

我创建了一个只显示引号的图形用户界面。如何将下面引述中的所有单词 'thou' 的颜色更改为蓝色？。我试过 SetForegroundColour 但它会将整个文本更改为蓝色。

代码如下：

import wx

string='''"Have more than thou showest,

Speak less than thou knowest,

Lend less than thou owest,

Ride more than thou goest,

Learn more than thou trowest,

Set less than thou throwest."

—The Fool in King Lear'''

class Quote(wx.Frame):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.InitUI()

    def InitUI(self):
        panel=wx.Panel(self)

        self.text=wx.TextCtrl(panel, pos=(20,20), size=(250,220),
            style=wx.TE_MULTILINE|wx.TE_READONLY)
        self.text.AppendText(string)
        self.text.SetForegroundColour("blue")

        self.SetSize(300,300)
        self.Centre()
        self.Show(True)

def main():
    app=wx.App()
    Quote(None)
    app.MainLoop()

if __name__ == '__main__':
    main()

Here's how it looks like

Answer 1

您可能需要阅读 RichTextCtrl https://wxpython.org/Phoenix/docs/html/richtextctrl_overview.html

只要使用TextCtrl就可以
1 事后设置样式属性（感谢 Robin 的评论）或
2 随时将样式属性应用于文本。

使用 re 事后设置样式属性以预先查找所有出现的单词：

import wx
import re

string='''"Have more than thou showest,

Speak less than thou knowest,

Lend less than thou owest,

Ride more than thou goest,

Learn more than thou trowest,

Set less than thou throwest."

-The Fool in King Lear'''

class Quote(wx.Frame):
    def __init__(self, *args, **kwargs):
        wx.Frame.__init__(self, None, -1)
        self.InitUI()

    def InitUI(self):
        panel=wx.Panel(self)
        word = 'thou'
        word_colour = wx.TextAttr(wx.BLUE)
        word_occurs = self.find_str(word,string)
        self.text=wx.TextCtrl(panel, pos=(20,20), size=(250,220),
            style=wx.TE_MULTILINE|wx.TE_READONLY)
        self.text.AppendText(string)
        for i in word_occurs:
            #SetStyle(start pos, end pos, style)
            self.text.SetStyle(i,i+len(word),word_colour)
        self.SetSize((300,300))
        self.Centre()
        self.Show(True)

    def find_str(self,sub,sent): #return positions of the word
        return [x.start() for x in re.finditer(sub,sent)]

def main():
    app=wx.App()
    Quote()
    app.MainLoop()

if __name__ == '__main__':
    main()

这样做的冗长方法，边走边应用样式属性：

import wx

string1='''"Have more than'''
string2='''showest,

Speak less than'''
string3='''knowest,

Lend less than'''
string4='''owest,

Ride more than'''
string5='''goest,

Learn more than'''
string6='''trowest,

Set less than'''
string7='''throwest."

-The Fool in King Lear'''

class Quote(wx.Frame):
    def __init__(self, *args, **kwargs):
        wx.Frame.__init__(self, None, -1)
        self.InitUI()

    def InitUI(self):
        panel=wx.Panel(self)

        self.text=wx.TextCtrl(panel, pos=(20,20), size=(250,220),
            style=wx.TE_MULTILINE|wx.TE_READONLY)
        self.text.AppendText(string1)
        self.text.SetDefaultStyle(wx.TextAttr(wx.BLUE))
        self.text.AppendText(" thou ")
        self.text.SetDefaultStyle(wx.TextAttr(wx.NullColour))
        self.text.AppendText(string2)
        self.text.SetDefaultStyle(wx.TextAttr(wx.BLUE))
        self.text.AppendText(" thou ")
        self.text.SetDefaultStyle(wx.TextAttr(wx.NullColour))
        self.text.AppendText(string3)
        self.text.SetDefaultStyle(wx.TextAttr(wx.BLUE))
        self.text.AppendText(" thou ")
        self.text.SetDefaultStyle(wx.TextAttr(wx.NullColour))
        self.text.AppendText(string4)
        self.text.SetDefaultStyle(wx.TextAttr(wx.BLUE))
        self.text.AppendText(" thou ")
        self.text.SetDefaultStyle(wx.TextAttr(wx.NullColour))
        self.text.AppendText(string5)
        self.text.SetDefaultStyle(wx.TextAttr(wx.BLUE))
        self.text.AppendText(" thou ")
        self.text.SetDefaultStyle(wx.TextAttr(wx.NullColour))
        self.text.AppendText(string6)
        self.text.SetDefaultStyle(wx.TextAttr(wx.BLUE))
        self.text.AppendText(" thou ")
        self.text.SetDefaultStyle(wx.TextAttr(wx.NullColour))
        self.text.AppendText(string7)

        self.SetSize((300,300))
        self.Centre()
        self.Show(True)

def main():
    app=wx.App()
    Quote()
    app.MainLoop()

if __name__ == '__main__':
    main()

如何更改 wxPython TextCtrl 中特定单词的颜色？

How can I change the color of specific words in wxPython TextCtrl?

text

format

wxpython

textctrl