I am trying to create a PyQt5 GUI, where main window has 3 tabs inside. I made it before using 2 different classes: first for creating main window, and second for tabs and everything inside them. Now i am trying to fit everything in one class since i need to make instance of a main class. But i have problem with making a layout with those tabs. It shows error: QLayout: Cannot add a null widget to QVBoxLayout.
Here is the code:
class App(QWidget):
def __init__(self):
super().__init__()
self.title = 'Window'
self.left = 0
self.top = 0
self.width = 620
self.height = 700
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
tabw = self.createtabs()
self.layout = QVBoxLayout()
self.layout.addWidget(tabw)
self.show()
def createtabs(self):
self.tabs = QTabWidget()
self.tab1 = QWidget()
self.tab2 = QWidget()
self.tab3 = QWidget()
self.tabs.resize(300, 200)
self.tabs.addTab(self.tab1, "tab1")
self.tabs.addTab(self.tab2, "tab2")
self.tabs.addTab(self.tab3, "tab3")
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
EDIT:
I used modification from comments, but also wanted to change class from QWidget to QMainWindow, and i faced another problem. I don't know how to set properly the widget of main window. Since I made those changes it gives me errors:
QLayout: Attempting to add QLayout "" to App "", which already has a layout
QWidget::setLayout: Attempting to set QLayout "" on App "", which already has a layout
QLayout: Cannot add a null widget to QVBoxLayout
And here is the code:
class App(QMainWindow):
def __init__(self):
super().__init__()
self.main_widget = QWidget(self)
self.setCentralWidget(self.main_widget)
self.setWindowTitle("Window")
self.left = 0
self.top = 0
self.width = 620
self.height = 700
self.setGeometry(self.left, self.top, self.width, self.height)
tabw = self.createtabs()
self.layout = QVBoxLayout()
self.layout.addWidget(tabw)
self.show()
def createtabs(self):
self.layout = QVBoxLayout(self)
self.tabs = QTabWidget()
self.tab1 = QWidget()
self.tab2 = QWidget()
self.tab3 = QWidget()
self.tabs.addTab(self.tab1, "tab1")
self.tabs.addTab(self.tab2, "tab2")
self.tabs.addTab(self.tab3, "tab3")
self.layout.addWidget(self.tabs)
self.setLayout(self.layout)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
First of all your method createtabs doesn't return anything to your tabw.
Second of all you need to setLayout to yuor central widget.
Here is the code which works as you want
class App(QMainWindow):
def __init__(self):
super().__init__()
self.main_widget = QWidget(self)
self.setCentralWidget(self.main_widget)
self.setWindowTitle("Window")
self.left = 0
self.top = 0
self.width = 620
self.height = 700
self.setGeometry(self.left, self.top, self.width, self.height)
tabw = self.createtabs()
self.layout = QVBoxLayout()
self.layout.addWidget(tabw)
self.main_widget.setLayout(self.layout)
self.show()
def createtabs(self):
self.tabs = QTabWidget()
self.tab1 = QWidget()
self.tab2 = QWidget()
self.tab3 = QWidget()
self.tabs.addTab(self.tab1, "tab1")
self.tabs.addTab(self.tab2, "tab2")
self.tabs.addTab(self.tab3, "tab3")
return self.tabs
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
Related
I am a newbie in PyQt5 and learning to use QListWidget in a project. My problem is when I put three PushButtons inside a QListWidget. But when I click the buttons, nothing happened, and I cannot find the problem why.
So, could someone help me out? Thank you very much, and the following is my entire codes.
import sys
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
class App(QWidget):
def __init__(self):
super().__init__()
self.title = 'Main Window'
self.left = 300
self.top = 300
self.width = 840
self.height = 580
self.Contents = QStackedWidget()
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
# the following is to create a ToolBar
self.toolbar = QToolBar()
self.toolbar.setStyleSheet("background-color: rgb(200, 155, 155);" 'spacing:20px;')
self.toolbar.setFixedHeight(86)
self.toolbar.setMovable( False)
# create three pushbutton called Button1, Button2, Button3
Button1 = QPushButton(self)
Button1.setText("Home Button")
Button2 = QPushButton(self)
Button2.setText("Simulation")
Button3 = QPushButton(self)
Button3.setText("Practice")
# create QListWidget and add the buttons into it
self.itemN = QListWidgetItem()
self.funList = QListWidget()
self.widget = QWidget()
widgetLayout = QHBoxLayout()
widgetLayout.addWidget(Button1)
widgetLayout.addWidget(Button2)
widgetLayout.addWidget(Button3)
widgetLayout.addStretch()
widgetLayout.setSizeConstraint(QLayout.SetFixedSize)
self.widget.setLayout(widgetLayout)
self.funList.addItem(self.itemN)
self.funList.setItemWidget(self.itemN, self.widget)
self.funList.clicked.connect(self.clicked_check) # this click seems not working
#put the QlistWidget into the toolbar
self.toolbar.addWidget(self.widget)
vbox = QVBoxLayout()
vbox.addWidget(self.toolbar)
self.setLayout(vbox)
self.show()
#pyqtSlot()
def clicked_check(self):
alert = QMessageBox()
alert.setText('This Button works')
alert.exec_()
if not QApplication.instance():
app = QApplication(sys.argv)
else:
app = QApplication.instance()
ex = App()
sys.exit(app.exec_())
I did not understand what you want to do, but if you put self.funList in the layout, we get the following result:
import sys
from PyQt5 import QtWidgets
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
class App(QWidget):
def __init__(self):
super().__init__()
self.title = 'Main Window'
self.left = 300
self.top = 100
self.width = 840
self.height = 380
self.Contents = QStackedWidget()
self.initUI()
def initUI(self):
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
# the following is to create a ToolBar
self.toolbar = QToolBar()
self.toolbar.setStyleSheet("background-color: rgb(200, 155, 155);" 'spacing:20px;')
self.toolbar.setFixedHeight(86)
self.toolbar.setMovable( False)
# create three pushbutton called Button1, Button2, Button3
Button1 = QPushButton(self)
Button1.setText("Home Button")
Button1.clicked.connect(lambda: print(Button1.text())) # +
Button2 = QPushButton(self)
Button2.setText("Simulation")
Button3 = QPushButton(self)
Button3.setText("Practice")
# create QListWidget and add the buttons into it
self.itemN = QListWidgetItem()
self.funList = QListWidget()
self.widget = QWidget()
# self.widget.setStyleSheet("background-color: rgb(255, 155, 000);")
# self.funList.setStyleSheet("background-color: rgb(255, 000, 155);")
widgetLayout = QHBoxLayout()
widgetLayout.addWidget(Button1)
widgetLayout.addWidget(Button2)
widgetLayout.addWidget(Button3)
widgetLayout.addStretch()
widgetLayout.setSizeConstraint(QLayout.SetFixedSize)
self.widget.setLayout(widgetLayout)
self.funList.addItem(self.itemN)
self.itemN.setSizeHint(self.widget.sizeHint())
self.funList.setItemWidget(self.itemN, self.widget)
self.funList.clicked.connect(self.clicked_check) # this click seems not working
#put the QlistWidget into the toolbar
self.toolbar.addWidget(self.widget)
vbox = QVBoxLayout(self)
vbox.addWidget(self.funList) # <<<-----<
vbox.addWidget(self.toolbar)
self.setLayout(vbox)
self.show()
#pyqtSlot()
def clicked_check(self):
alert = QMessageBox()
alert.setText('This Button works')
alert.exec_()
if not QApplication.instance():
app = QApplication(sys.argv)
else:
app = QApplication.instance()
ex = App()
sys.exit(app.exec_())
Trying to remove a qwidget and replace it with another qwidget and then reload the layout the qwidget is a part of
I've already tried the update and removeWidget method, though i could've used it improperly
from PyQt5.Qt import *
import sys
validUser = False
app = None
class App(QMainWindow):
def __init__(self):
super().__init__()
screen = app.primaryScreen().size()
self.title = 'Restaurant Application'
width = screen.width()
height = screen.height()
self.left = 0
self.top = 0
self.width = width
self.height = height
self.setMouseTracking(True)
self.table_widget = MyTableWidget(self)
self.setCentralWidget(self.table_widget)
self.initUI()
self.show()
def initUI(self):
# window
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
# statusbar
self.statusBar().showMessage('Welcome to el restaurante')
def mousePressEvent(self, event):
print('Mouse coords: ( %d : %d )' % (event.x(), event.y()))
class MyTableWidget(QWidget):
def __init__(self, parent):
super(QWidget, self).__init__(parent)
self.layout = QVBoxLayout(self)
# Initialize tab screen
self.tabs = QTabWidget()
self.login = QWidget()
self.menu = QWidget()
self.checkOut = QWidget()
self.tabs.resize(500, 200)
# Add tabs
self.tabs.addTab(self.login, "Login")
self.tabs.addTab(self.menu, "Menu")
self.tabs.addTab(self.checkOut, "Check out")
# Create login tab
self.login.layout = QVBoxLayout(self)
self.menu.layout = QVBoxLayout(self)
# login text
self.loginPrompt = QLabel("Please provide a valid login")
self.loginPrompt.setFixedSize(315,30)
self.loginPromptFont = QFont("Times", 27, QFont.Bold)
self.loginPrompt.setFont(self.loginPromptFont)
self.login.layout.addWidget(self.loginPrompt)
self.login.setLayout(self.login.layout)
# Create textbox
self.loginTextbox = QLineEdit(self)
self.loginTextbox.returnPressed.connect(self.on_click_login)
self.loginTextbox.setFixedSize(170,20)
# Create a button in the window
self.loginButton = QPushButton('Login button', self)
self.loginButton.clicked.connect(self.on_click_login)
self.loginButton.setFixedSize(100,40)
self.login.layout.addWidget(self.loginTextbox,alignment=Qt.AlignCenter)
self.login.layout.addWidget(self.loginButton,alignment=Qt.AlignCenter)
#widget code i use to decide which widget to add
self.menuInvalidUserLogin = QLabel("Please login in to view")
self.menuValidUserLogin = QLabel("Here's the menu")
if(validUser):
self.menu.layout.addWidget(self.menuValidUserLogin)
else:
self.menu.layout.addWidget(self.menuInvalidUserLogin)
self.menu.setLayout(self.menu.layout)
# Add tabs to widget
self.layout.addWidget(self.tabs)
self.setLayout(self.layout)
def on_click_login(self):
global validUser
global app
textboxValue = self.loginTextbox.text()
if(textboxValue.lower() == 'pass'):
validUser=True
#the solutions i have been trying
self.menu.layout.removeWidget(self.menuInvalidUserLogin)
self.layout.removeWidget(self.menuInvalidUserLogin)
self.menu.layout.update()
QMessageBox.question(self, 'Response', "Login successful: Welcome", QMessageBox.Ok,QMessageBox.Ok)
else:
validUser=False
QMessageBox.question(self, 'Response', "Login unsuccessful: EXPLAIN YOURSELF", QMessageBox.Ok,QMessageBox.Ok)
self.loginTextbox.setText("")
app = QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
expected results should be that the old widget is removed, new widget is added and then the layout those widgets are a part of is refreshed
Is this what you were expecting?
Also, is there a specific reason why you are using global variables in your class? It is bad practice, you should make them class members.
from PyQt5 import QtWidgets, QtCore, QtGui
import sys
class App(QtWidgets.QMainWindow):
def __init__(self):
super(App,self).__init__()
app = QtWidgets.QApplication.instance()
screen = app.primaryScreen().size()
self.title = 'Restaurant Application'
width = screen.width()
height = screen.height()
self.left = 0
self.top = 0
self.width = width
self.height = height
self.setMouseTracking(True)
self.table_widget = MyTableWidget(self)
self.setCentralWidget(self.table_widget)
self.initUI()
self.show()
def initUI(self):
# window
self.setWindowTitle(self.title)
self.setGeometry(self.left, self.top, self.width, self.height)
# statusbar
self.statusBar().showMessage('Welcome to el restaurante')
def mousePressEvent(self, event):
print('Mouse coords: ( %d : %d )' % (event.x(), event.y()))
class MyTableWidget(QtWidgets.QWidget):
def __init__(self, parent):
super(MyTableWidget, self).__init__(parent)
self.layout = QtWidgets.QVBoxLayout()
self.validUser = False
# Initialize tab screen
self.tabs = QtWidgets.QTabWidget()
self.login = QtWidgets.QWidget()
self.menu = QtWidgets.QWidget()
self.checkOut = QtWidgets.QWidget()
self.tabs.resize(500, 200)
# Add tabs
self.tabs.addTab(self.login, "Login")
self.tabs.addTab(self.menu, "Menu")
self.tabs.addTab(self.checkOut, "Check out")
# Create login tab
self.login.layout = QtWidgets.QVBoxLayout()
self.menu.layout = QtWidgets.QVBoxLayout()
# login text
self.loginPrompt = QtWidgets.QLabel("Please provide a valid login")
self.loginPrompt.setFixedSize(315,30)
self.loginPromptFont = QtGui.QFont("Times", 27, QtGui.QFont.Bold)
self.loginPrompt.setFont(self.loginPromptFont)
self.login.layout.addWidget(self.loginPrompt)
self.login.setLayout(self.login.layout)
# Create textbox
self.loginTextbox = QtWidgets.QLineEdit()
self.loginTextbox.returnPressed.connect(self.on_click_login)
self.loginTextbox.setFixedSize(170,20)
# Create a button in the window
self.loginButton = QtWidgets.QPushButton('Login button')
self.loginButton.clicked.connect(self.on_click_login)
self.loginButton.setFixedSize(100,40)
self.login.layout.addWidget(self.loginTextbox,alignment=QtCore.Qt.AlignCenter)
self.login.layout.addWidget(self.loginButton,alignment=QtCore.Qt.AlignCenter)
#widget code i use to decide which widget to add
self.menuInvalidUserLogin = QtWidgets.QLabel("Please login in to view")
self.menuValidUserLogin = QtWidgets.QLabel("Here's the menu")
if(self.validUser):
self.menu.layout.addWidget(self.menuValidUserLogin)
else:
self.menu.layout.addWidget(self.menuInvalidUserLogin)
self.menu.setLayout(self.menu.layout)
# Add tabs to widget
self.layout.addWidget(self.tabs)
self.setLayout(self.layout)
def on_click_login(self):
textboxValue = self.loginTextbox.text()
if(textboxValue.lower() == 'pass'):
self.validUser=True
for i in reversed(range(self.menu.layout.count())):
widgetToRemove = self.menu.layout.itemAt(i).widget()
self.menu.layout.removeWidget(widgetToRemove)
widgetToRemove.deleteLater()
self.menu.layout.addWidget(self.menuValidUserLogin)
QtWidgets.QMessageBox.question(self, 'Response', "Login successful: Welcome", QtWidgets.QMessageBox.Ok,QtWidgets.QMessageBox.Ok)
self.tabs.setCurrentIndex(1)
else:
self.validUser=False
QtWidgets.QMessageBox.question(self, 'Response', "Login unsuccessful: EXPLAIN YOURSELF", QtWidgets.QMessageBox.Ok,QtWidgets.QMessageBox.Ok)
self.loginTextbox.setText("")
def main():
app = QtWidgets.QApplication(sys.argv)
ex = App()
sys.exit(app.exec_())
if __name__ == "__main__":
main()
I'm trying to add a scroll area to a QTabWideget.
At the moment I've set it up with two different tabs and the scrollArea is added to the second tab.
When I run my program, items are added to the scrollArea and the scroll bar is visible(policy set to always show), but it's greyed out.
Code:
class MyTableWidget(QWidget):
def __init__(self, parent):
super(QWidget, self).__init__(parent)
self.layout = QVBoxLayout(self)
# Initialize tab screen
self.tabs = QTabWidget()
self.tab1 = QWidget()
self.tab2 = QScrollArea()
self.tabs.setMaximumWidth(300)
self.tabs.setMaximumHeight(100)
# Add tabs
self.tabs.addTab(self.tab1,"Tab 1")
self.tabs.addTab(self.tab2,"Tab 2")
# Create first tab
# ...
# Create second tab
self.tab2.layout = QFormLayout(self)
self.tab2.setWidgetResizable(True)
self.tab2.setVerticalScrollBar(QScrollBar())
self.tab2.setVerticalScrollBarPolicy(2)
self.tab2.setFixedSize(100, 70)
self.t1 = QLabel('Test1', self)
self.t2 = QLabel('Test2', self)
self.t3 = QLabel('Test3', self)
self.t4 = QLabel('Test4', self)
self.t5 = QLabel('Test5', self)
self.t6 = QLabel('Test6', self)
self.tab2.layout.addRow(self.t1)
self.tab2.layout.addRow(self.t2)
self.tab2.layout.addRow(self.t3)
self.tab2.layout.addRow(self.t4)
self.tab2.layout.addRow(self.t5)
self.tab2.layout.addRow(self.t6)
self.tab2.setLayout(self.tab2.layout)
# Add tabs to widget
self.layout.addWidget(self.tabs)
self.setLayout(self.layout)
Code above turns out like this:
All squished together. I would like to be able to scroll and add more data without squishing whats there already.
Also, can I make the scroll area have the same background as seen in the picture below?
You do not have to replace the QScrollArea layout but add a new widget that has the QFormLayout as shown below.
from PyQt5.QtWidgets import QWidget, QVBoxLayout, QApplication, \
QTabWidget, QScrollArea, QFormLayout, QLabel
class MyTableWidget(QWidget):
def __init__(self, parent=None):
super(QWidget, self).__init__(parent)
self.layout = QVBoxLayout(self)
self.tabs = QTabWidget()
self.tab1 = QWidget()
self.tab2 = QScrollArea()
self.tabs.addTab(self.tab1, 'Tab 1')
self.tabs.addTab(self.tab2, 'Tab 2')
content_widget = QWidget()
self.tab2.setWidget(content_widget)
flay = QFormLayout(content_widget)
self.tab2.setWidgetResizable(True)
self.t1 = QLabel('Test1')
self.t2 = QLabel('Test2')
self.t3 = QLabel('Test3')
self.t4 = QLabel('Test4')
self.t5 = QLabel('Test5')
self.t6 = QLabel('Test6')
flay.addRow(self.t1)
flay.addRow(self.t2)
flay.addRow(self.t3)
flay.addRow(self.t4)
flay.addRow(self.t5)
flay.addRow(self.t6)
self.layout.addWidget(self.tabs)
self.resize(300, 100)
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
w = MyTableWidget()
w.show()
sys.exit(app.exec_())
I got the following Test-GUI.
There is a left layout and a right layout where i want to put buttons and other things onto. The button on the right should make a QFrame unhide or hide and all the widgets in it. This works.
But after the first two clicks, the layout is different.
The TableWidget on the left layout gets resized and the button is a bit more south.
Is there an easy way to fix this?
import sys
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
class MainWindow(QMainWindow):
def __init__(self):
super().__init__()
self.main_widget = MainWidget()
self.setCentralWidget(self.main_widget)
self.show()
class MainWidget(QWidget):
def __init__(self):
super().__init__()
self.layout = QVBoxLayout()
self.tab_widget = TabWidget()
self.debugger = Dialog()
self.layout.addWidget(self.tab_widget)
self.layout.addWidget(self.debugger)
self.setLayout(self.layout)
class TabWidget(QTabWidget):
def __init__(self):
super().__init__()
self.tab1 = Tab_1()
self.addTab(self.tab1, "Tab1")
class Tab_1(QWidget):
def __init__(self):
super().__init__()
# LEFT LAYOUT BEGIN
self.table = QTableWidget()
self.table.setRowCount(1)
self.table.setColumnCount(2)
self.table.setSizeAdjustPolicy(QAbstractScrollArea.AdjustToContents)
self.table.resizeColumnsToContents()
left_hlayout = QHBoxLayout()
left_hlayout.addWidget(self.table)
# # LEFT LAYOUT END
#
# # RIGHT LAYOUT BEGIN
self.button_options = QPushButton('Options')
self.button_options.setCheckable(True)
self.button_options.toggled.connect(self.option_pressed)
right_vlayout = QVBoxLayout()
right_vlayout.addWidget(self.button_options)
# # RIGHT LAYOUT END
# MAIN LAYOUT BEGING
self.main_layout = QVBoxLayout()
self.horizontal_layout = QHBoxLayout()
self.horizontal_layout.addLayout(left_hlayout)
self.horizontal_layout.addLayout(right_vlayout)
self.main_layout.addLayout(self.horizontal_layout)
self.option = Options()
self.main_layout.addWidget(self.option)
self.setLayout(self.main_layout)
# MAIN LAYOUT END
def option_pressed(self):
if self.button_options.isChecked():
self.option.setVisible(True)
else:
self.option.setVisible(False)
class Options(QFrame):
def __init__(self):
super().__init__()
self.hide()
self.setFrameStyle(QFrame.StyledPanel | QFrame.Sunken)
self.options_layout = QFormLayout()
self.options_label = QLabel('One')
self.options_lineedit = QLineEdit('Two')
self.options_layout.addRow(self.options_label, self.options_lineedit)
self.setLayout(self.options_layout)
class Dialog(QPlainTextEdit):
def __init__(self, parent=None):
super().__init__(parent)
self.setFixedHeight(100)
pal = QPalette()
bgc = QColor(210, 210, 210)
pal.setColor(QPalette.Base, bgc)
self.setPalette(pal)
if __name__ == "__main__":
app = QApplication(sys.argv)
window = MainWindow()
sys.exit(app.exec_())
I've created a class, which creates the GUI. I would like to add a menubar to it, but I don't really know, how should I add it to the window, if I work with a class. I can't make the menu bar appaer.
class Window(QtGui.QMainWindow):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
Main = QtGui.QMainWindow()
self.tab1 = QtGui.QWidget()
self.tab2 = QtGui.QWidget()
self.figure = plt.figure()
self.canvas = FigureCanvas(self.figure)
self.tempLabel=QtGui.QLabel("NC",self)
self.tempLabel.move(350,20)
self.tempLabel.setStyleSheet('color: black; font-size: 12pt;font: bold')
#menu bar
self.menu=QtGui.QMenu("Port", self)
self.menu.addAction('&ttyUSB0',)
self.menu.addAction('&ttyUSB1',)
self.menu.addAction('&ttyUSB2',)
self.layout = QtGui.QVBoxLayout()
self.layout.addWidget(self.canvas)
self.layout.addWidget(self.tempLabel)
self.tab1.setLayout(self.layout)
self.tabs = QtGui.QTabWidget()
self.tabs.addTab(self.tab1, "Database")
self.tabs.addTab(self.tab2, "Current")
self.tabs.show()
The menu bar is usually accessed from the main window, using the menuBar function.
I have edited your example code to show how to add menus, and also fixed a few other minor issues:
from PyQt4 import QtCore, QtGui
class Window(QtGui.QMainWindow):
def __init__(self, parent=None):
super(Window, self).__init__(parent)
menubar = self.menuBar()
menu = menubar.addMenu('Port')
menu.addAction('&ttyUSB0')
menu.addAction('&ttyUSB1')
menu.addAction('&ttyUSB2')
self.tab1 = QtGui.QWidget()
self.tab2 = QtGui.QWidget()
self.figure = plt.figure()
self.canvas = FigureCanvas(self.figure)
self.tempLabel = QtGui.QLabel('NC', self)
self.tempLabel.move(350, 20)
self.tempLabel.setStyleSheet(
'color: black; font-size: 12pt;font: bold')
self.layout = QtGui.QVBoxLayout()
self.layout.addWidget(self.canvas)
self.layout.addWidget(self.tempLabel)
self.tab1.setLayout(self.layout)
self.tabs = QtGui.QTabWidget()
self.tabs.addTab(self.tab1, 'Database')
self.tabs.addTab(self.tab2, 'Current')
self.setCentralWidget(self.tabs)
if __name__ == '__main__':
import sys
app = QtGui.QApplication(sys.argv)
window = Window()
window.show()
sys.exit(app.exec_())