Python 3 - Win10: Tkinter - Word Processor - Text Widget - Font Styling 2

#Python 3+ Win 10

Tkinter Word Processor

Text Widget Font Styling 2

 

Brief:

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In the previous post here I could not figure out how to avoid the styling artifacts of color not updating quickly enough or the tag range being cut off while typing quickly.

I solved this issue with the code below.

in the original post I can remove carry_over, valid_over, in any_key_down replace the code with that of the code snippet.

my stackoverflow post

Demo:

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How To:

 

 

Code Snippet:

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import tkinter as tk import re class Document(tk.Text): def __init__(self, master, *args, **kewargs): super().__init__(*args, **kewargs) self.master = master self.master.bind("<KeyPress>", self.any_key_down) self.tag_add('<b>', "1.0", "1.2") self.tag_config('<b>', foreground='red') def any_key_down(self, event=None): print(event) char = re.findall(r"[a-zA-Z0-9\S ]", event.char) if 0 < len(char) and event.keysym not in ["BackSpace", "Escape"] or '\t' == event.char: insert = event.widget.index('insert-2c') tags = event.widget.tag_names(insert) for tag in tags: event.widget.tag_add(tag, 'insert-1c', 'insert') root = tk.Tk() text = Document(root, height=4) text.pack() text.insert("1.0", "This is helvetica font", "<b>") text.insert("1.0", "This is terminal font", "font_term") text.tag_config('<b>', font='Helvetica 12') text.tag_config('font_term', font='Terminal 12') text.insert("3.0", "This is terminal font\n", "font_term") root.mainloop()

 

Credits & Resources:

 

• Code formatted via: http://hilite.me/ : Styling: Python, monokai

 

 

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Update! 'How To' Video added - RPG Systems Simple Validate User Input System 1

I released a 'How to' video for the 'RPG Systems - simple input validation' post.

find the video here:

the post here:

Please note that the post was released a while before the video so the code has changed a little.

Python 3 - Win10: Tkinter - Word Processor - Text Widget - Line Wrapping - Find Wrap Position 2

#Python 3 - Win10

Tkinter Word Processor

Text Widget: Line Wrapping

Find Wrap Position 2

Brief:

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So as it turns out I didn't need to do any of that heavy lifting in my previous post. There were methods in place to do what I wanted. I found the answer in the tkinter/tcl docs while trying to figure out a different problem with the word processor application. I've been using this functions all the time but did not realize I could use the "display" sub-modifier when calling indices. But it's live and learn with coding.

 

The code is so minuscule it makes me want to cry for the time I took brute forcing the functionality.

 

 

Functionality:

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...

Improvements:

• N/A

Issues:

•  N/A

 

Demo:

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 N/A

 

Code Snippet: 

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import tkinter as tk


def inspect_wrapline(event=None):
  start = f"{tk.INSERT} linestart"
  end   = f"{tk.INSERT} lineend"
  counter = event.widget.count(start, end, "displaylines")
  
  print("number of lines after first line", counter)


  start = f"{tk.INSERT} display linestart"
  end   = f"{tk.INSERT} display lineend +1c"
  dline = event.widget.get(start, end)

  print("Text on the displayline", dline)


root_window = tk.Tk()
text_widget = tk.Text(root_window)
text_widget.pack()
text_widget.insert("This is an example text.")
text_widget.bind("<Control-l>", inspect_wrapline)

root_window.mainloop()

 

Credits and Resources:

• Code formatted via: http://hilite.me/ : Styling: Python, monokai

1. https://tcl.tk/man/tcl8.6/TkCmd/text.htm
2. https://tkdocs.com/tmp-pyref/onepage.html

 

• https://anzeljg.github.io/rin2/book2/2405/docs/tkinter/text-methods.html
• https://docs.python.org/3/library/tkinter.ttk.html
• https://stackoverflow.com/
  

 

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