how to make a widget that could input the text then the text became the widget

[nicker player]

I just added the qedittext into my project.and i want to wrote a widget that the qedittext could input the text.and when the text was finished ,then the text part just inputed became the other widget(such as the qpushbutton else).so how to figure it out?it is too hard for me to get the whole part.

[JonB]

If you want to show one widget in the place of the other you can use QStackedWidget. So after the user has entered text into say, a QLineEdit take the text, set it to a QPushButton or Qlabel's text, and switch to that in the QStackedWidget instead of the QLineEdit.

If you don't care about hiding the original QLineEdit then you don't need a QStackedWidget.

To create a new widget use new. You can place it wherever on an existing layout.

All you really need is pushButton->setText(lineEdit->text()), so what is hard?

[Pl45m4]

@nicker-player

So basically QItemDelegate behavior?!
When you click the widget you get lineEdit editor to write text and when you are done wirh writing, you switch to "display" mode and just show the text?!

[nicker player]

@JonB
what I just mentioned looks like the pic above.when inputed the "w" part then the text became the qlabel or qpushbutton something.

[jsulm]

@nicker-player This picture does not help to understand what you want to do. But my understanding is same as @JonB : you can use QStackedWidget...

[jeremy_k]

I interpreted the OP description as something along the lines of GitLab's search input, where free text that is recognized as a keyword is replaced with a label: