Using wxPython Rich text control

Question

I am using a rtf control to display text. I cannot understand the rtf control object structure. How do you get text into the rtf buffer?

I have accessed the buffer and added an xml handler. Where do I go from there?

import wx
import wx.richtext as rt


class MainFrame(wx.Frame):
    """Create MainFrame class."""
    def __init__(self):
        """Initialise the class."""
        wx.Frame.__init__(self, None, -1, 'Demonstrate wxPython Rich Text')
        self.panel = MainPanel(self)
        self.refresh_rtf(self.raw_xml())
        self.Centre()

    def refresh_rtf(self, xml):
        handler = wx.richtext.RichTextXMLHandler()
        rtf_buffer = self.rtf_control.GetBuffer()
        rtf_buffer.AddHandler(handler)

        #handler.ImportXML(rtf_buffer, self.rtf_control)
        #self.rtf_control.Refresh()

    def raw_xml(self):
        xml = ('<?xml version="1.0" encoding="UTF-8"?>'
            '<richtext version="1.0.0.0" xmlns="http://www.wxwidgets.org">'
            '<paragraphlayout textcolor="#4C4C4C" fontsize="11"'
                            'fontstyle="90"'
                            'fontweight="90" fontunderlined="0"'
                            'fontface="Ubuntu" alignment="1"'
                            'parspacingafter="10" parspacingbefore="0"'
                            'linespacing="10">'
                '<paragraph>'
                    '<text>"What do we want: "</text>'
                    '<text textcolor="#FF0000">all</text>'
                '</paragraph>'
            '</paragraphlayout>'
        '</richtext>')
        return xml


class MainPanel(wx.Panel):
    """Create a panel class to contain screen widgets."""
    def __init__(self, frame):
        """Initialise the class."""
        wx.Panel.__init__(self, frame)
        rtf_sizer = self._create_rtf_control(frame)
        main_sizer = wx.BoxSizer(wx.HORIZONTAL)
        main_sizer.Add(rtf_sizer, flag=wx.ALL, border=10)
        self.SetSizerAndFit(main_sizer)

    def _create_rtf_control(self, frame):
        rtf_style = wx.VSCROLL|wx.HSCROLL|wx.TE_READONLY|wx.BORDER_SIMPLE
        frame.rtf_control = wx.richtext.RichTextCtrl(self,
                                                 size=(400, 200),
                                                 style=rtf_style)
        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(frame.rtf_control)
        return sizer


if __name__ == '__main__':
    """Run the application."""
    screen_app = wx.App()
    main_frame = MainFrame()
    main_frame.Show(True)
    screen_app.MainLoop()

*****EDIT*****

For reference I have added here the Python 2 code that achieved the result I want

def refresh_rtf(self, xml):
    if xml != '':
        out = StringIO()
        handler = wx.richtext.RichTextXMLHandler()
        rtf_buffer = self.rtf_control.GetBuffer()
        rtf_buffer.AddHandler(handler)
        out.write(str(xml))
        out.seek(0)
        handler.LoadStream(rtf_buffer, out)
        self.rtf_control.Refresh()

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Answer 1

I have given this up as a bad job. I'm sure it's possible, but no one seems to be able to guide me

Instead I have implemented the functionality using

html.HtmlWindow

The revised code, which functions perfectly, is:

import wx
import wx.html as html


class MainFrame(wx.Frame):
    """Create MainFrame class."""
    def __init__(self):
        """Initialise the class."""
        wx.Frame.__init__(self, None, -1, 'Demonstrate wxPython Html')
        self.panel = MainPanel(self)
        self.Centre()
        self.html_display.SetPage(self.raw_html())

    @staticmethod
    def raw_html():
        html = ('<p><font color="#4C4C4C", size=2>What do we want: '
                    '<font color="#FF0000">all</font>'
                '</p>')
        return html


class MainPanel(wx.Panel):
    """Create a panel class to contain screen widgets."""
    def __init__(self, frame):
        """Initialise the class."""
        wx.Panel.__init__(self, frame)
        html_sizer = self._create_html_control(frame)
        main_sizer = wx.BoxSizer(wx.HORIZONTAL)
        main_sizer.Add(html_sizer, flag=wx.ALL, border=10)
        self.SetSizerAndFit(main_sizer)

    def _create_html_control(self, frame):
        txt_style = wx.VSCROLL|wx.HSCROLL|wx.BORDER_SIMPLE
        frame.html_display = html.HtmlWindow(self, -1,
                                                size=(400, 200),
                                                style=txt_style)
        sizer = wx.BoxSizer(wx.HORIZONTAL)
        sizer.Add(frame.html_display)
        return sizer


if __name__ == '__main__':
    """Run the application."""
    screen_app = wx.App()
    main_frame = MainFrame()
    main_frame.Show(True)
    screen_app.MainLoop()

A bit of work to convert the raw data, but not too much