How to keep both cursor and PlaceholderText displayed at the same time in a QLineEdit?

Question

I have a QLineEdit with a PlaceholderText.

I want to clear the PlaceholderText only when a person starts typing, else the blinking cursor and PlacehoderText both should be there in that QLineEdit.

It is the first field of the page, so I have set the focus to this QLineEdit, but the PlaceholderText disappears as soon as this page is displayed.

Please suggest if I'll have to add a SIGNAL/SLOT for this QLIneEdit, so that the PlaceholderText doesn't get cleared off.

score 1 · Answer 1 · edited May 25 '18 at 17:35

1

In PyQt4 it's not a bug but a feature. You can't edit this behaviour. In PyQt5, the placeholder text is shown until the text is not empty.

A simple way to solve problem is to focus some way before QLintEdit. When the user press TAB button, next focus is QLintEdit.

edited May 25 '18 at 17:35

Félix Adriyel Gagnon-Grenier

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answered Aug 08 '14 at 03:21

Bandhit Suksiri

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score 0 · Answer 2 · answered Aug 07 '14 at 19:56

Here you go:

from PyQt4 import QtGui

class LE(QtGui.QLineEdit):

    def __init__(self, parent=None, starttext="Sample"):
        QtGui.QLineEdit.__init__(self, parent)
        self.start = True
        self.setText(starttext)

    def keyPressEvent(self, e):
        if e.text():
            if self.start:
                self.clear()
                self.start = False
                e.accept()           
        QtGui.QLineEdit.keyPressEvent(self,e)

How to keep both cursor and PlaceholderText displayed at the same time in a QLineEdit?

2 Answers2