Spell checking for QLineEdit – Is it possible?

PtSl

Hi,

is there a way to add spell checking to QLineEdit?

I know that QTextEdit can be made to look like a single-line input by setting its height to around 25 pixels and intercepting keyPressEvent to block Qt.Key_Enter and Qt.Key_Return. But honestly, that feels like a bit of a hack.

Is there are more straightforward solution?
Any suggestions are appreciated!

Peter

PtSl

This is the desired outcome with a modified QTextEdit. Can there be a more systematic solution?

JonB

@PtSl
As per Googling QLineEdit spell check there is nothing supplied. Other people seem to have added this, e.g. https://blog.ssokolow.com/archives/2022/07/22/a-qlineedit-replacement-with-spell-checking/ but apparently by putting it on a QPlainTextEdit and then making that look like a single line QLineEdit. Which seems to be about where you are at. If there were a "more straightforward solution" for a QLineEdit I would expect to have found it. If you are going to write your own code to intercept key presses on a QText[Plain]Edit and deal with spellchecking I can't see why you couldn't do that on a QLineEdit if that is what you want to stick to, but have not looked into it.

P.S.
Now that you have posted what you would like, I'm not at sure you would get "red squiggly underlines" in QLineEdit. QTextEdit at least supports HTML, but I don't think QLineEdit does. So one would assume that at least would require intercepting paint() to achieve the visuals, apart from the character-typing-intercepting and spell-check itself.

Pl45m4

@PtSl

Hi,

it's built for Qt5 but you could try

https://github.com/manisandro/qtspell

and read through a related topic here

Maybe a QValidator with a dictionary linked to it also helps

PtSl

Intercepting the key presses is meant to prevent multi-line text. I want to avoid this:

Multi-line text.png

JonB

@Pl45m4 said in Spell checking for QLineEdit – Is it possible?:

https://github.com/manisandro/qtspell

Yes, but this too says

To check spelling in a QTextEdit or QPlainTextEdit, proceed as follows:

I have not looked, but has it been written to allow for a QLineEdit? Or are we accepting that OP must change to Q[Plain]TextEdit?

and read through a related topic here

I had seen that but it didn't get very far.... And it's MacOS only.

PtSl

Thank you, guys, for your responses and the references you provided! I appreciate that there are some ready solutions. I will check them out to adapt them to my case.