# -*- coding: utf-8 -*-

'''
    【簡介】
	PyQt5中 QLineEdit範例       
  
'''

from PyQt5.QtWidgets import QApplication,  QLineEdit , QWidget ,  QFormLayout
from PyQt5.QtGui import QIntValidator , QDoubleValidator , QFont
from PyQt5.QtCore import Qt
import sys  

class lineEditDemo(QWidget):
	def __init__(self, parent=None):
		super(lineEditDemo, self).__init__(parent)
		e1 = QLineEdit()
		e1.setValidator( QIntValidator() )
		e1.setMaxLength(4)
		e1.setAlignment( Qt.AlignRight )
		e1.setFont( QFont("Arial",20))
		e2 = QLineEdit()
		e2.setValidator( QDoubleValidator(0.99,99.99,2))
		flo = QFormLayout()
		flo.addRow("integer validator", e1)
		flo.addRow("Double validator",e2)
		e3 = QLineEdit()
		e3.setInputMask('+99_9999_999999')
		flo.addRow("Input Mask",e3)
		e4 = QLineEdit()
		e4.textChanged.connect( self.textchanged )
		flo.addRow("Text changed",e4)
		e5 = QLineEdit()
		e5.setEchoMode( QLineEdit.Password )
		flo.addRow("Password",e5)
		e6 = QLineEdit("Hello PyQt5")
		e6.setReadOnly(True)
		flo.addRow("Read Only",e6 )
		e5.editingFinished.connect( self.enterPress )
		self.setLayout(flo)
		self.setWindowTitle("QLineEdit範例")
	
	def textchanged(self, text):
		print( "輸入的內容為："+text )

	def enterPress( self ):
		print( "已輸入值" )

   
if __name__ == "__main__":       
	app = QApplication(sys.argv)
	win = lineEditDemo()	
	win.show()	
	sys.exit(app.exec_())