Change QLabel to QLineEdit when mousePressEvent happens

[naoyamakino]

Hi there, I am looking for a way to change QLabel to QLineEdit when user clicks on it.
for example, MSN Messenger shows user name as label, and it changes to editable when user clicks on it; and it goes back to a label again when hit Enter.
is there any way to do that?
here is my code (this does not work, it does not change QLabel to QLineEdit when it detects mousePressEvent)

class class BuddyList(QtGui.QWidget):
    def __init__(self,parent=None):
        QtGui.QWidget.__init__(self, parent)
        #some initialization...# 
        #username
        self.username = LineDisplay(self,self)
        self.username.setGeometry(QtCore.QRect(120, 10, 121, 20))
 
class LineDisplay(QtGui.QLabel):
    def __init__(self,buddyList,parent=None):
        QtGui.QLabel.__init__(self, parent)
        self.buddyList = buddyList
    def mousePressEvent(self, event):
        self.buddyList.username = None
        self.buddyList.usernameInput = QtGui.QLineEdit(self)
        self.buddyList.usernameInput.setGeometry(QtCore.QRect(120, 10, 121, 20))

class class BuddyList(QtGui.QWidget):
    def __init__(self,parent=None):
        QtGui.QWidget.__init__(self, parent)
        #some initialization...# 
        #username
        self.username = LineDisplay(self,self)
        self.username.setGeometry(QtCore.QRect(120, 10, 121, 20))

class LineDisplay(QtGui.QLabel):
    def __init__(self,buddyList,parent=None):
        QtGui.QLabel.__init__(self, parent)
        self.buddyList = buddyList
    def mousePressEvent(self, event):
        self.buddyList.username = None
        self.buddyList.usernameInput = QtGui.QLineEdit(self)
        self.buddyList.usernameInput.setGeometry(QtCore.QRect(120, 10, 121, 20))

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does anyone have an idea? or do you see anything wrong in my code?
I would very much appreciate for any kind of input.

thank you for your consideration.

best regards
Naoya Makino

[nish]

just show and hide the label/lineedit on mouseclickevent and editingfinishied signals respectively

[naoyamakino]

Hi MrDeath, thank you for your reply.

yes it works!!
thank you so much!
here is my code for interests

class nameDisplay(QtGui.QLabel):
    def __init__(self,buddyList,parent=None):
        QtGui.QLabel.__init__(self, parent)
        self.buddyList = buddyList
    def mousePressEvent(self, event):
        print 'mousePressEvent'
        self.buddyList.username.hide()
        self.buddyList.usernameInput = QtGui.QLineEdit(self.buddyList)
        self.buddyList.usernameInput.setGeometry(QtCore.QRect(120, 10, 121, 20))
        self.buddyList.usernameInput.setText(self.buddyList.username.text())
        self.buddyList.usernameInput.selectAll()
        self.buddyList.usernameInput.show()
        self.connect(self.buddyList.usernameInput,QtCore.SIGNAL("returnPressed()"),self.editingFinish)
    def editingFinish(self):
        self.buddyList.usernameInput.hide()
        self.buddyList.username.show()
        self.buddyList.username.setText(self.buddyList.usernameInput.text())

class nameDisplay(QtGui.QLabel):
    def __init__(self,buddyList,parent=None):
        QtGui.QLabel.__init__(self, parent)
        self.buddyList = buddyList
    def mousePressEvent(self, event):
        print 'mousePressEvent'
        self.buddyList.username.hide()
        self.buddyList.usernameInput = QtGui.QLineEdit(self.buddyList)
        self.buddyList.usernameInput.setGeometry(QtCore.QRect(120, 10, 121, 20))
        self.buddyList.usernameInput.setText(self.buddyList.username.text())
        self.buddyList.usernameInput.selectAll()
        self.buddyList.usernameInput.show()
        self.connect(self.buddyList.usernameInput,QtCore.SIGNAL("returnPressed()"),self.editingFinish)
    def editingFinish(self):
        self.buddyList.usernameInput.hide()
        self.buddyList.username.show()
        self.buddyList.username.setText(self.buddyList.usernameInput.text())

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regards