QLineEdit programatic editing of text undoable in a single step

user_2757925 0
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I introduced a certain custom key shortcut to allow deleting of next 10 characters in a QLineEdit, beginning at the current text cursor position. But I want to have this undoable. Unfortunately QLineEdit does not provide QTextDocument or QTextCursor objects so I tried the following code:

int pos = lineEdit->cursorPosition();
lineEdit->setSelection(pos, pos + 10);
lineEdit->del();

This works fine but when I press undo (Ctrl+Z) the deleted text is back (which is what I want) but it is selected (which is what I do not want, instead I want to return to state before I programatically selected the text). I would prefer to have the option to wrap the selection and deletion into one 'macro' undo step. Is this possible? Something like https://doc.qt.io/qt-5/qtextcursor.html#beginEditBlock ?

qt
1 Answers

Try QPlainTextEdit with setWordWrapMode(QTextOption::NoWrap) to use QTextDocument+QTextCursor features.

user_142831720
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