QTextEdit word blocks and text formatting

Question

I need to make a QLineEdit with non-editable word blocks.

For instance, imagine I drop a word (that actually represents a value) in a QLineEdit. I would like to write normally on the QLineEdit, BUT if I try to move the cursor inside a word it would move over it, ie, place the cursor at the end/begining of the word.

Also, I would like the word to always show a certain highlight over it, with different colors (to emulate a box that would wrap it).

Any ideas on how to do this? Would a QTextArea be better for this? I was thinking of a QLineEdit because it would actually be inside a QTableWidget cell, so I think it may have more or less the same capabilities, am I wrong?

UPDATE I found these two functions that actually might be helpful for QLineEdit: cursorWordBackward() and cursorWordForward(), so this might help move over the words. Anyone has examples of this?

UPDATE 2 As QLineEdit does not support rich-text, the "highlight" feature I required can only be achieved with a QTextEdit. This has other issues: QTextEdit does not have the functions I mentioned in the first update above, and I don't know if it is possible to put a QTextEdit inside a QTableWidget cell.

Answer 1

QLineEdit can contain only plain text and certainly can't do this. I was thinking about QTextEdit, it can display HTML. But looking at the documentation, I realized that there is no way to insert non-editable block in QTextDocument (which is used by QTextEdit). I think there is no simple solution.

You can try to implement it manually. Catch textChanged() and cursorPositionChanged() signals of QTextEdit, analyze its content and cursor position and modify them if user moved the cursor into non-editable block or changed its content.

Answer 2

Maybe you could achieve this by using an inputMask...