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prog3.py
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import sys
import requests
from PyQt5.QtCore import Qt
from PyQt5.QtGui import *
from PyQt5.QtWidgets import QGridLayout, QLabel, QLineEdit
from PyQt5.QtWidgets import QTextEdit, QWidget, QDialog, QApplication, QMainWindow, QTableWidgetItem
from PyQt5 import *
import json
import main_ui1
from config import config
from lib import session_lib, request_lib
######################## CLASSE QUE TRATA DO LOGIN #############################
class Login(QDialog):
def __init__(self, parent=None):
super(Login, self).__init__(parent)
self.setupUi(self)
self.pushButton.clicked.connect(self.logincheck)
self.pushButton_2.clicked.connect(self.criarContaWindow)
################################################################################################################################################
#
# PYQT5 STYLING E HUD DO LOGIN()
#
#################################################################################################################################################
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(240, 212)
Dialog.setStyleSheet("#Dialog {\n"
"background-color: qlineargradient(spread:pad, x1:0.964, y1:0.994318, x2:1, y2:0, stop:1 rgb(0, 191, 143), stop:0 rgb(0, 21, 16));\n"
"}")
self.verticalLayout_2 = QtWidgets.QVBoxLayout(Dialog)
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setObjectName("verticalLayout")
spacerItem = QtWidgets.QSpacerItem(20, 20, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Fixed)
self.verticalLayout.addItem(spacerItem)
self.lineEdit = QtWidgets.QLineEdit(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.lineEdit.sizePolicy().hasHeightForWidth())
self.lineEdit.setSizePolicy(sizePolicy)
self.lineEdit.setAlignment(QtCore.Qt.AlignCenter)
self.lineEdit.setObjectName("lineEdit")
self.verticalLayout.addWidget(self.lineEdit, 0, QtCore.Qt.AlignHCenter)
spacerItem1 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
self.verticalLayout.addItem(spacerItem1)
self.lineEdit_2 = QtWidgets.QLineEdit(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.lineEdit_2.sizePolicy().hasHeightForWidth())
self.lineEdit_2.setSizePolicy(sizePolicy)
self.lineEdit_2.setEchoMode(QtWidgets.QLineEdit.Password)
self.lineEdit_2.setAlignment(QtCore.Qt.AlignCenter)
self.lineEdit_2.setObjectName("lineEdit_2")
self.verticalLayout.addWidget(self.lineEdit_2, 0, QtCore.Qt.AlignHCenter)
spacerItem2 = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Minimum, QtWidgets.QSizePolicy.Expanding)
self.verticalLayout.addItem(spacerItem2)
self.pushButton = QtWidgets.QPushButton(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.pushButton.sizePolicy().hasHeightForWidth())
self.pushButton.setSizePolicy(sizePolicy)
self.pushButton.setObjectName("pushButton")
self.verticalLayout.addWidget(self.pushButton, 0, QtCore.Qt.AlignHCenter)
self.pushButton_2 = QtWidgets.QPushButton(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.pushButton_2.sizePolicy().hasHeightForWidth())
self.pushButton_2.setSizePolicy(sizePolicy)
self.pushButton_2.setObjectName("pushButton_2")
self.verticalLayout.addWidget(self.pushButton_2, 0, QtCore.Qt.AlignHCenter)
spacerItem3 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Minimum)
self.verticalLayout.addItem(spacerItem3)
self.verticalLayout_2.addLayout(self.verticalLayout)
self.retranslateUi(Dialog)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "PyTunes"))
self.lineEdit.setPlaceholderText(_translate("Dialog", "Username"))
self.lineEdit_2.setPlaceholderText(_translate("Dialog", "Password"))
self.pushButton.setText(_translate("Dialog", "Login"))
self.pushButton_2.setText(_translate("Dialog", "New User"))
################################################################################################################################################
#
# PYQT5 STYLING E HUD DO LOGIN()
#
################################################################################################################################################
def criarContaWindow(self):
self.hide()
self.criarConta = criarConta()
self.criarConta.show()
def teste(self):
response = requests.post('https://192.168.1.65:8080/auth/login', {'user_name':'ruben','password':'123'}, verify=False)
#print(self.username,self.password)
if response.json()['success'] == True:
print('token->', response.json())
#session_lib.set_token(response.json()['token'])
print ('session_lib.token->',session_lib.get_token())
QtWidgets.QMessageBox.information(self, "Sucesso", "Bem vindo/a: \'%s\'"% self.username)
self.accept()
else:
print ('erro')
def logincheck(self):
self.username = str(self.lineEdit.text())
self.password = str(self.lineEdit_2.text())
if (self.username == "" or self.password == ""):
QtWidgets.QMessageBox.information(self, "Campo Vazio", "Por favor preencha todos os campos.")
return
#TESTAR LOCALMENTE
"""
elif (self.username == 'ruben' and
self.password == '123'):
QtWidgets.QMessageBox.information(self, "Sucesso", "Bem vindo/a: %s"% self.username)
self.accept()
"""
else:
response = requests.post('https://192.168.1.65:8080/auth/login', {'user_name':self.username,'password':self.password}, verify=False)
print(self.username,self.password)
print(response.content)
if response.json()['success'] == True:
# print('token->', response.json()['token'])
#session_lib.set_token(response.json()['token'])
print ('session_lib.token->',session_lib.get_token())
QtWidgets.QMessageBox.information(self, "Sucesso", "Bem vindo/a: \'%s\'"% self.username)
self.accept()
else:
print ('erro')
#http://stackoverflow.com/questions/31843262/pass-a-variable-from-one-class-to-another-in-pyqt
#http://bytes.com/topic/python/answers/462303-pyqt-qdialog-qmainwindow-interacting-each-other
def accept(self):
self.mainwindow = Pytunes(self.username)
self.mainwindow.show()
QDialog.accept(self)
#CÓDIGO CERTO
"""
else:
response = requests.post(config.server_host+'auth/login', {'user_name':self.lineEdit.text(),'password':self.lineEdit_2.text()}, verify=False)
if response.json()['success'] == True:
print('token->', response.json()['token'])
#session_lib.set_token(response.json()['token'])
print ('session_lib.token->',session_lib.get_token())
QtWidgets.QMessageBox.information(self, "Sucesso", "Bem vindo/a: \'%s\'"% self.lineEdit.text())
self.accept()
"""
######################## CLASSE PARA CRIAR CONTA ###############################
class criarConta(QDialog):
#http://stackoverflow.com/questions/30470433/how-to-put-a-child-window-inside-a-main-windowpyqt
def __init__(self, parent=None):
super(criarConta, self).__init__(parent)
self.setWindowFlags(Qt.WindowStaysOnTopHint)
self.setupUi(self)
self.buttonBox.accepted.connect(self.testarConta)
self.buttonBox.rejected.connect(self.cancelCriarConta)
#self.raise_()
def testarConta(self):
response = requests.post('https://192.168.1.89:8080/auth/create_account', {'name':self.newUser.text(),'password':self.newPassword.text(),'password_confirmation':self.confPassword.text(),'email':self.eMail.text()}, verify=False)
print (response.content)
if response.json()['success'] == True:
QtWidgets.QMessageBox.information(self, "Sucesso", "Utilizador %s criado"% self.newUser.text())
self.accept()
else:
print('Fail')
def accept(self):
QDialog.accept(self)
self.login = Login()
self.login.show()
def cancelCriarConta(self):
self.close()
self.login = Login()
self.login.show()
################################################################################################################################################
#
# PYQT5 STYLING E HUD DO criarConta()
#
#################################################################################################################################################
def setupUi(self, Dialog):
Dialog.setObjectName("Dialog")
Dialog.resize(258, 331)
Dialog.setStyleSheet("#Dialog {\n"
"background-color: qlineargradient(spread:pad, x1:0.964, y1:0.994318, x2:1, y2:0, stop:1 rgb(0, 191, 143), stop:0 rgb(0, 21, 16));\n"
"}")
self.horizontalLayout = QtWidgets.QHBoxLayout(Dialog)
self.horizontalLayout.setObjectName("horizontalLayout")
self.verticalLayout_2 = QtWidgets.QVBoxLayout()
self.verticalLayout_2.setObjectName("verticalLayout_2")
self.newUser = QtWidgets.QLineEdit(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.newUser.sizePolicy().hasHeightForWidth())
self.newUser.setSizePolicy(sizePolicy)
self.newUser.setInputMask("")
self.newUser.setText("")
self.newUser.setAlignment(QtCore.Qt.AlignCenter)
self.newUser.setObjectName("newUser")
self.verticalLayout_2.addWidget(self.newUser, 0, QtCore.Qt.AlignHCenter)
self.newPassword = QtWidgets.QLineEdit(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.newPassword.sizePolicy().hasHeightForWidth())
self.newPassword.setSizePolicy(sizePolicy)
self.newPassword.setEchoMode(QtWidgets.QLineEdit.Password)
self.newPassword.setAlignment(QtCore.Qt.AlignCenter)
self.newPassword.setObjectName("newPassword")
self.verticalLayout_2.addWidget(self.newPassword, 0, QtCore.Qt.AlignHCenter)
self.confPassword = QtWidgets.QLineEdit(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.confPassword.sizePolicy().hasHeightForWidth())
self.confPassword.setSizePolicy(sizePolicy)
self.confPassword.setEchoMode(QtWidgets.QLineEdit.Password)
self.confPassword.setAlignment(QtCore.Qt.AlignCenter)
self.confPassword.setObjectName("confPassword")
self.verticalLayout_2.addWidget(self.confPassword, 0, QtCore.Qt.AlignHCenter)
self.eMail = QtWidgets.QLineEdit(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.eMail.sizePolicy().hasHeightForWidth())
self.eMail.setSizePolicy(sizePolicy)
self.eMail.setAlignment(QtCore.Qt.AlignCenter)
self.eMail.setObjectName("eMail")
self.verticalLayout_2.addWidget(self.eMail, 0, QtCore.Qt.AlignHCenter)
self.buttonBox = QtWidgets.QDialogButtonBox(Dialog)
sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Fixed)
sizePolicy.setHorizontalStretch(0)
sizePolicy.setVerticalStretch(0)
sizePolicy.setHeightForWidth(self.buttonBox.sizePolicy().hasHeightForWidth())
self.buttonBox.setSizePolicy(sizePolicy)
self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.Cancel|QtWidgets.QDialogButtonBox.Ok)
self.buttonBox.setObjectName("buttonBox")
self.verticalLayout_2.addWidget(self.buttonBox)
self.horizontalLayout.addLayout(self.verticalLayout_2)
self.retranslateUi(Dialog)
#self.buttonBox.accepted.connect(Dialog.accept)
#self.buttonBox.rejected.connect(Dialog.reject)
QtCore.QMetaObject.connectSlotsByName(Dialog)
def retranslateUi(self, Dialog):
_translate = QtCore.QCoreApplication.translate
Dialog.setWindowTitle(_translate("Dialog", "Create User"))
self.newUser.setPlaceholderText(_translate("Dialog", "New Username"))
self.newPassword.setPlaceholderText(_translate("Dialog", "New Password"))
self.confPassword.setPlaceholderText(_translate("Dialog", "Confirm Password"))
self.eMail.setPlaceholderText(_translate("Dialog", "E-Mail"))
################################################################################################################################################
#
# PYQT5 STYLING E HUD DO criarConta()
#
#################################################################################################################################################
#http://stackoverflow.com/questions/13768012/to-show-pyqt-main-window-inside-a-function
class Pytunes(QMainWindow):
def __init__(self, username, parent=None):
super(Pytunes, self).__init__(parent)
self.setupUi(self)
#self.style.setupUi(self)
#self.playlist()
self.loggeduser = username
self.setWindowTitle("Pytunes Bem-Vindo/a %s"%self.loggeduser)
#http://stackoverflow.com/questions/21334518/i-need-help-making-a-menu-bar-in-pyqt5
homeLogOut = self.menuHome.addAction('Logout')
homeExit = self.menuHome.addAction('Exit')
homeExit.triggered.connect(self.openPlaylist)
homeLogOut.triggered.connect(self.openPlaylist)
self.play_list = PlayList()
def exit(self):
self.close()
def openPlaylist(self):
print ('teste teste teste')
#a = self.play_list.height()
#b = self.play_list.width()
self.setCentralWidget(self.play_list)
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.setWindowModality(QtCore.Qt.WindowModal)
MainWindow.resize(1024, 620)
MainWindow.setStyleSheet("#MainWindow {background-color: qlineargradient(spread:pad, x1:0.964, y1:0.994318, x2:1, y2:0, stop:1 rgb(0, 191, 143), stop:0 rgb(0, 21, 16));}\n"
"")
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.horizontalLayout = QtWidgets.QHBoxLayout(self.centralwidget)
self.horizontalLayout.setObjectName("horizontalLayout")
self.verticalLayout = QtWidgets.QVBoxLayout()
self.verticalLayout.setObjectName("verticalLayout")
self.line = QtWidgets.QFrame(self.centralwidget)
self.line.setFrameShape(QtWidgets.QFrame.HLine)
self.line.setFrameShadow(QtWidgets.QFrame.Sunken)
self.line.setObjectName("line")
self.verticalLayout.addWidget(self.line)
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setText("")
self.label.setPixmap(QtGui.QPixmap("../Untitled-1.png"))
self.label.setObjectName("label")
self.verticalLayout.addWidget(self.label)
self.line_2 = QtWidgets.QFrame(self.centralwidget)
self.line_2.setFrameShape(QtWidgets.QFrame.HLine)
self.line_2.setFrameShadow(QtWidgets.QFrame.Sunken)
self.line_2.setObjectName("line_2")
self.verticalLayout.addWidget(self.line_2)
self.horizontalLayout.addLayout(self.verticalLayout)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 1024, 27))
self.menubar.setObjectName("menubar")
self.menuHome = QtWidgets.QMenu(self.menubar)
self.menuHome.setObjectName("menuHome")
self.menuPlaylists = QtWidgets.QMenu(self.menubar)
self.menuPlaylists.setObjectName("menuPlaylists")
self.menuBrowse = QtWidgets.QMenu(self.menubar)
self.menuBrowse.setObjectName("menuBrowse")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.actionPlaylist1 = QtWidgets.QAction(MainWindow)
self.actionPlaylist1.setObjectName("actionPlaylist1")
self.menuPlaylists.addSeparator()
self.menubar.addAction(self.menuHome.menuAction())
self.menubar.addAction(self.menuPlaylists.menuAction())
self.menubar.addAction(self.menuBrowse.menuAction())
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.menuHome.setTitle(_translate("MainWindow", "Home"))
self.menuPlaylists.setTitle(_translate("MainWindow", "Music"))
self.menuBrowse.setTitle(_translate("MainWindow", "Browse"))
self.actionPlaylist1.setText(_translate("MainWindow", "Playlist1"))
"""
if self.mdiArea.activeSubWindow() is None:
self.subwindow.setMinimumSize(b, a)
self.subwindow.setWidget(self.play_list)
self.mdiArea.addSubWindow(self.subwindow)
self.subwindow.show()
self.subwindow.widget().show()
"""
def editor(self):
self.textEditor = self.playlist()
self.setCentralWidget(self.textEditor)
"""
def playlist(self):
print('ola')
self.show()
self.tableWidget = QtWidgets.QTableWidget()
self.tableWidget.setObjectName("tableWidget")
#self.verticalLayout.addWidget(self.tableWidget)
#self.horizontalLayout.addLayout(self.verticalLayout)
#CÓDIGO CERTO
#entries = requests.get(config.server_host+'playlist/'+str(1),verify=False).json()
#TESTAR LOCALMENTE
entries = [{'name':'NomeMusica','artist':'artista'}]
#with open('data') as input:
#for d in table_data:
self.tableWidget.setRowCount(len(entries))
self.tableWidget.setColumnCount(2)
self.tableWidget.setHorizontalHeaderLabels(['Musica','Artista'])
i = 0
for d in entries:
Musica = QTableWidgetItem(d['name'])
Artista = QTableWidgetItem(d['artist'])
#http://nullege.com/codes/search/PyQt5.QtWidgets.QTableWidgetItem.setFlags
#http://stackoverflow.com/questions/7727863/how-to-make-a-cell-in-a-qtablewidget-read-only
Musica.setFlags(Musica.flags() & ~Qt.ItemIsEditable)
Artista.setFlags(Artista.flags() & ~Qt.ItemIsEditable)
self.tableWidget.setItem(i, 0, Musica)
self.tableWidget.setItem(i, 1, Artista)
#QTableWidgetItem.setFlags(QTableWidgetItem.flags() & ~Qt.ItemIsEditable)
i+=1
for i, row in enumerate(entries):
for j, col in enumerate(row):
item = QTableWidgetItem(col)
self.tableWidget.setItem(i, j, item)
"""
"""
class playlist(QWidget):
def __init__(self, parent=None):
super(playlist, self).__init__(parent)
#self.centralwidget = QtWidgets.QWidget(Pytunes)
self.tableWidget = QtWidgets.QTableWidget()
self.tableWidget.setObjectName("tableWidget")
#def playlistNumber(self):
entries = [{'name':'NomeMusica','artist':'artista'}]
#with open('data') as input:
#for d in table_data:
self.tableWidget.setRowCount(len(entries))
self.tableWidget.setColumnCount(2)
self.tableWidget.setHorizontalHeaderLabels(['Musica','Artista'])
i = 0
for d in entries:
Musica = QTableWidgetItem(d['name'])
Artista = QTableWidgetItem(d['artist'])
#http://nullege.com/codes/search/PyQt5.QtWidgets.QTableWidgetItem.setFlags
#http://stackoverflow.com/questions/7727863/how-to-make-a-cell-in-a-qtablewidget-read-only
Musica.setFlags(Musica.flags() & ~Qt.ItemIsEditable)
Artista.setFlags(Artista.flags() & ~Qt.ItemIsEditable)
self.tableWidget.setItem(i, 0, Musica)
self.tableWidget.setItem(i, 1, Artista)
#QTableWidgetItem.setFlags(QTableWidgetItem.flags() & ~Qt.ItemIsEditable)
i+=1
"""
class PlayList(QWidget):
def __init__(self, parent=None):
super(PlayList, self).__init__(parent)
#self.centralwidget = QtWidgets.QWidget(Pytunes)
#self.tableWidget = QtWidgets.QTableWidget()
#self.tableWidget.setObjectName("tableWidget")
self.setupUi(self)
#def playlistNumber(self):
entries = [{'name':'NomeMusica','artist':'artista'}]
#with open('data') as input:
#for d in table_data:
self.tableWidget.setRowCount(len(entries))
self.tableWidget.setColumnCount(2)
#http://nullege.com/codes/show/src@p@y@pyqt5-HEAD@examples@dialogs@findfiles.py/193/PyQt5.QtWidgets.QTableWidget.setSelectionBehavior
self.tableWidget.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectRows)
self.tableWidget.setHorizontalHeaderLabels(['Musica','Artista'])
i = 0
for d in entries:
Musica = QTableWidgetItem(d['name'])
Artista = QTableWidgetItem(d['artist'])
#http://nullege.com/codes/search/PyQt5.QtWidgets.QTableWidgetItem.setFlags
#http://stackoverflow.com/questions/7727863/how-to-make-a-cell-in-a-qtablewidget-read-only
Musica.setFlags(Musica.flags() & ~Qt.ItemIsEditable)
Artista.setFlags(Artista.flags() & ~Qt.ItemIsEditable)
self.tableWidget.setItem(i, 0, Musica)
self.tableWidget.setItem(i, 1, Artista)
#QTableWidgetItem.setFlags(QTableWidgetItem.flags() & ~Qt.ItemIsEditable)
i+=1
def setupUi(self, Form):
Form.setObjectName("Form")
Form.resize(720, 347)
self.horizontalLayout = QtWidgets.QHBoxLayout(Form)
self.horizontalLayout.setObjectName("horizontalLayout")
self.tableWidget = QtWidgets.QTableWidget(Form)
self.tableWidget.setObjectName("tableWidget")
self.tableWidget.setColumnCount(0)
self.tableWidget.setRowCount(0)
self.horizontalLayout.addWidget(self.tableWidget)
self.retranslateUi(Form)
QtCore.QMetaObject.connectSlotsByName(Form)
def retranslateUi(self, Form):
_translate = QtCore.QCoreApplication.translate
Form.setWindowTitle(_translate("Form", "Form"))
#http://stackoverflow.com/questions/26603540/how-to-avoid-the-child-qmainwindow-disappearing
#UTIL SE O UTILIZADOR JÁ TIVER O COOKIE DE SESSÃO VÁLIDO PASSA LOGO PARA A MAINWINDOW
#TIVE QUE FAZER SUBCLASS DA APPLICATION()
class Application(QApplication):
def __init__(self):
QApplication.__init__(self, sys.argv)
self._window = None
def window(self):
if self._window is None:
self._window = Login()
return self._window
if __name__ == '__main__':
app = QApplication = Application()
app.window().show()
sys.exit(app.exec_())