Trying to teach myself PyQt5, so I'm guessing I am just not adding something in. But I currently have a menu bar at the top of the window and am wanting to add a frame underneath, but doing so makes the menu bar inaccessible. Without the frame the menu bar works just fine. How do I fix this?
#!/usr/bin/python3.6
from PyQt5.QtWidgets import (QMainWindow, QApplication, QFrame, QAction, qApp, QStackedWidget, QWidget, QListWidget, QVBoxLayout)
from PyQt5.QtGui import QIcon
import sys
class CharManMain(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
'''initiates application UI'''
exitAct = QAction('&Exit', self)
exitAct.setShortcut('Ctrl+Q')
exitAct.setStatusTip('Exit Application')
exitAct.triggered.connect(qApp.quit)
newAct = QAction('&New', self)
newAct.setShortcut('Ctrl+N')
newAct.setStatusTip('Create a New character')
openAct = QAction('&Open', self)
openAct.setShortcut('Ctrl+O')
openAct.setStatusTip('Open a saved character')
statusbar = self.statusBar()
menubar = self.menuBar()
fileMenu = menubar.addMenu('&File')
characterMenu = menubar.addMenu('Characters')
fileMenu.addAction(newAct)
fileMenu.addAction(openAct)
fileMenu.addAction(exitAct)
baseFrame = QFrame(self)
vbox = QVBoxLayout()
vbox.addWidget(menubar)
vbox.addWidget(baseFrame)
vbox.addWidget(statusbar)
self.setLayout(vbox)
self.setWindowTitle('Character Manager v0.01')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
charMain = CharManMain()
sys.exit(app.exec_())
QMainWindow.setCentralWidget(widget)
Sets the given widget to be the main window’s central widget.
import sys
from PyQt5.QtWidgets import (QMainWindow, QApplication, QFrame, QAction, qApp,
QStackedWidget, QWidget, QListWidget, QVBoxLayout)
from PyQt5.QtGui import QIcon
class CharManMain(QMainWindow):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
'''initiates application UI'''
exitAct = QAction('&Exit', self)
exitAct.setShortcut('Ctrl+Q')
exitAct.setStatusTip('Exit Application')
exitAct.triggered.connect(qApp.quit)
newAct = QAction('&New', self)
newAct.setShortcut('Ctrl+N')
newAct.setStatusTip('Create a New character')
openAct = QAction('&Open', self)
openAct.setShortcut('Ctrl+O')
openAct.setStatusTip('Open a saved character')
statusbar = self.statusBar()
menubar = self.menuBar()
fileMenu = menubar.addMenu('&File')
characterMenu = menubar.addMenu('Characters')
fileMenu.addAction(newAct)
fileMenu.addAction(openAct)
fileMenu.addAction(exitAct)
baseFrame = QFrame() # --- (self)
self.setCentralWidget(baseFrame) # +++ <-----
### ---
#vbox = QVBoxLayout()
#vbox.addWidget(menubar)
#vbox.addWidget(baseFrame)
#vbox.addWidget(statusbar)
#self.setLayout(vbox)
self.setWindowTitle('Character Manager v0.01')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
charMain = CharManMain()
sys.exit(app.exec_())
Related
Force repainting does not repaint PyQt5 widget (Qlabel, QTextEdit, even QProgressBar and etc)
Tested platforms: Linux, MacOS
PyQt5 version: 5.15.7
Installed from pip
As example I created simple app that updating text in QLabel widget in for loop. Force repainting doesnt working
import sys
from time import sleep
from PyQt5.QtWidgets import (QWidget, QApplication, QPushButton, QLabel)
class Example(QWidget):
def __init__(self):
super().__init__()
self.text = QLabel('Test', self)
self.text.move(10, 10)
self.text.resize(60,20)
self.button = QPushButton('Run', self)
self.button.move(17,40)
self.button.clicked.connect(self.some_activity)
self.setGeometry(300, 300, 100, 80)
self.show()
def some_activity(self):
for i in range(100):
text = f'i = {i}'
self.text.setText(text)
# self.text.update() -> Nothing happens (it shouldnt: https://doc.qt.io/qt-5/qwidget.html#update)
self.text.repaint() # -> Nothing happens
self.repaint() # -> Nothing happens
print(f'Text updated: {text}')
sleep(0.03)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
Video demonstration: link
Just needed to use QThread to use for loop in my program
Thanks #musicamante for helping.
import sys
from time import sleep
from PyQt5 import QtCore
from PyQt5.QtWidgets import (QWidget, QApplication, QPushButton, QLabel)
class Thread(QtCore.QThread):
signal = QtCore.pyqtSignal(str)
def __init__(self, parent=None): QtCore.QThread.__init__(self, parent)
def run(self):
for i in range(100):
text = f'i = {i}'
print(f'Text updated: {text}')
self.signal.emit(text)
sleep(.3)
class Example(QWidget):
def __init__(self):
super().__init__()
self.text = QLabel('Test', self)
self.text.move(10, 10)
self.text.resize(60,20)
self.thread = Thread()
self.thread.signal.connect(self.signal, QtCore.Qt.QueuedConnection)
self.button = QPushButton('Run', self)
self.button.move(17,40)
self.button.clicked.connect(self.thread.start)
self.setGeometry(300, 300, 100, 80)
self.show()
def signal(self, text): self.text.setText(text)
if __name__ == '__main__':
app = QApplication(sys.argv)
ex = Example()
sys.exit(app.exec_())
I'm creating a PyQt5 application in which I want to put some of QLineEdit widgets inside a QGroupBox.
When I run my application, GroupBox is visible and LineEdit is not.
In CreateLinesEdit() I commented a line which sets the line edit visible, but it opens lineEdit in a new window.
from PyQt5.QtWidgets import QGroupBox, QApplication, QLineEdit, QVBoxLayout, QWidget, QHBoxLayout
import sys
class Window(QWidget):
def __init__(self):
super().__init__()
self.InitWindow()
def InitWindow(self):
self.BoxLayout()
self.AddBox()
self.CreateLinesEdit()
self.show()
def BoxLayout(self):
self.groupBoxScreen = QGroupBox()
self.vbox = QVBoxLayout()
self.vbox_screenGame = QVBoxLayout()
self.hbox_lineEdit = QHBoxLayout()
def AddBox(self):
self.vbox_screenGame.addItem(self.hbox_lineEdit)
self.groupBoxScreen.setLayout(self.vbox_screenGame)
self.vbox.addWidget(self.groupBoxScreen)
self.setLayout(self.vbox)
def CreateLinesEdit(self):
self.lines_edit = []
for i in range(0, 4):
LineEdit = QLineEdit()
# LineEdit.setVisible(True)
self.lines_edit.append(LineEdit)
self.hbox_lineEdit.addWidget(self.lines_edit[i])
if __name__ == "__main__":
App = QApplication(sys.argv)
window = Window()
sys.exit(App.exec())
I am trying to get the "Game Name:" (QLabel), input box (QLineEdit), and QPushButton on one line and the "Pop-up" QLabel) to appear on the bottom
but am having difficulties with get QGridLayout to work
With this code:
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout, QVBoxLayout, QPushButton, QLabel, QLineEdit, QGridLayout, QGroupBox, QDialog
from PyQt5.QtCore import pyqtSlot
class Window(QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setWindowTitle("Project PiBu!!")
self.createGridLayout()
self.windowLayout = QVBoxLayout()
self.windowLayout.addWidget(self.horizontalGroupBox)
self.setLayout(self.windowLayout)
self.game_name = QLabel("Game Name:", self)
self.game_line_edit = QLineEdit(self)
self.search_button = QPushButton("Search", self)
self.search_button.clicked.connect(self.on_click)
self.game = QLabel(self)
self.show()
def createGridLayout(self):
self.horizontalGroupBox = QGroupBox()
self.layout = QGridLayout()
self.layout.setColumnStretch(1, 4)
self.layout.setColumnStretch(2, 4)
self.layout.addWidget(self.game_name, 0, 0)
self.layout.addWidget(self.game_line_edit, 0, 1)
self.layout.addWidget(self.search_button, 0, 2)
self.layout.addWidget(self.game, 1, 0)
self.horizontalGroupBox.setLayout(layout)
#pyqtSlot()
def on_click(self):
self.game.setText(self.game_line_edit.text())
if __name__ == '__main__':
app = QApplication(sys.argv)
win = Window()
sys.exit(app.exec_())
I am getting this error:
AttributeError: 'Window' object has no attribute 'game_name'
Why?
have a feeling its something simple rather than something more complicated but maybe I'm wrong
Please help!!!
Thank you!
You call the createGridLayout method earlier than you define the variables used in it.
import sys
from PyQt5.QtWidgets import (QApplication, QWidget, QHBoxLayout,
QVBoxLayout, QPushButton, QLabel, QLineEdit,
QGridLayout, QGroupBox, QDialog)
from PyQt5.QtCore import pyqtSlot
class Window(QWidget):
def __init__(self):
super().__init__()
self.initUI()
def initUI(self):
self.setWindowTitle("Project PiBu!!")
# self.createGridLayout()
# self.windowLayout = QVBoxLayout()
# self.windowLayout.addWidget(self.horizontalGroupBox)
# self.setLayout(self.windowLayout)
self.game_name = QLabel("Game Name:", self)
self.game_line_edit = QLineEdit(self)
self.search_button = QPushButton("Search", self)
self.search_button.clicked.connect(self.on_click)
self.game = QLabel(self)
self.createGridLayout() # < --
self.windowLayout = QVBoxLayout() # < --
self.windowLayout.addWidget(self.horizontalGroupBox) # < --
self.setLayout(self.windowLayout) # < --
self.show()
def createGridLayout(self):
self.horizontalGroupBox = QGroupBox()
self.layout = QGridLayout()
self.layout.setColumnStretch(1, 4)
self.layout.setColumnStretch(2, 4)
# AttributeError: 'Window' object has no attribute 'game_name'
self.layout.addWidget(self.game_name, 0, 0)
self.layout.addWidget(self.game_line_edit, 0, 1)
self.layout.addWidget(self.search_button, 0, 2)
self.layout.addWidget(self.game, 1, 0)
self.horizontalGroupBox.setLayout(self.layout) # +++ self.
#pyqtSlot()
def on_click(self):
self.game.setText(self.game_line_edit.text())
if __name__ == '__main__':
app = QApplication(sys.argv)
win = Window()
sys.exit(app.exec_())
I'm unsure why all aspects of my GUI are showing up apart from the spin box (the code for it is within the home function).
I've tried moving it to the init(self) function, but that doesn't work. I thought it would be intuitive for it to be within the home function as that is where all my other GUI (e.g. buttons) resides.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QAction, QMessageBox, QDoubleSpinBox
from temperature import MplWindow
from filament import MplWindow1
from highvoltage import MplWindow2
class window(QMainWindow):
def __init__(self):
super(window, self).__init__()
self.setGeometry(50, 50, 300, 300)
self.setWindowTitle('Temperature Control')
self.setWindowIcon(QIcon('adn.png'))
extractAction = QAction('&Quit', self)
extractAction.setShortcut('Ctrl+Q')
extractAction.setStatusTip('leave the app')
extractAction.triggered.connect(self.close_application)
self.statusBar()
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('&File')
fileMenu.addAction(extractAction)
self.matplWindow = MplWindow()
self.matplWindow1 = MplWindow1()
self.matplWindow2 = MplWindow2()
self.home()
def home(self):
btn = QPushButton('quit', self)
btn.clicked.connect(self.close_application)
btn.resize(btn.sizeHint())
btn.move(200, 260)
button = QPushButton('Temperature',self)
button.clicked.connect(self.opengraph)
button.move(100,50)
button = QPushButton('Filament voltage',self)
button.clicked.connect(self.openfilament)
button.move(100,80)
button = QPushButton('High voltage',self)
button.clicked.connect(self.openhigh)
button.move(100,110)
self.doubleSpinBox = QtWidgets.QDoubleSpinBox()
self.doubleSpinBox.setGeometry(180, 110, 62, 22)
self.show()
def opengraph(self):
self.matplWindow.funAnimation()
def openfilament(self):
self.matplWindow1.funAnimation1()
def openhigh(self):
self.matplWindow2.funAnimation2()
def close_application(self):
choice = QMessageBox.question(self, 'Message',
"Are you sure to quit?", QMessageBox.Yes |
QMessageBox.No, QMessageBox.No)
if choice == QMessageBox.Yes:
sys.exit()
else:
pass
if __name__ == "__main__":
app = QApplication(sys.argv)
Gui = window()
sys.exit(app.exec_())
I worked it out - I moved the code to the init function.
import sys
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton, QAction, QMessageBox, QDoubleSpinBox, QLabel, QVBoxLayout
from temperature import MplWindow # +++
from filament import MplWindow1
from highvoltage import MplWindow2
class window(QMainWindow):
def __init__(self):
super(window, self).__init__()
self.setGeometry(50, 50, 300, 300)
self.setWindowTitle('Temperature Control')
self.setWindowIcon(QIcon('adn.png'))
extractAction = QAction('&Quit', self)
extractAction.setShortcut('Ctrl+Q')
extractAction.setStatusTip('leave the app')
extractAction.triggered.connect(self.close_application)
self.statusBar()
mainMenu = self.menuBar()
fileMenu = mainMenu.addMenu('&File')
fileMenu.addAction(extractAction)
self.matplWindow = MplWindow() # +++
self.matplWindow1 = MplWindow1()
self.matplWindow2 = MplWindow2()
# vBoxLayout = QVBoxLayout()
self.label = QLabel("Set point Temp:", self)
self.label.move(50,150)
self.spinBox = QDoubleSpinBox(self)
self.spinBox.move(70,150)
self.home()
def home(self):
btn = QPushButton('quit', self)
btn.clicked.connect(self.close_application)
btn.resize(btn.sizeHint())
btn.move(200, 260)
button = QPushButton('Temperature',self)
button.clicked.connect(self.opengraph)
button.move(100,50)
button = QPushButton('Filament voltage',self)
button.clicked.connect(self.openfilament)
button.move(100,80)
button = QPushButton('High voltage',self)
button.clicked.connect(self.openhigh)
button.move(100,110)
self.show()
def opengraph(self):
self.matplWindow.funAnimation() # +++
def openfilament(self):
self.matplWindow1.funAnimation1()
def openhigh(self):
self.matplWindow2.funAnimation2()
def close_application(self):
choice = QMessageBox.question(self, 'Message',
"Are you sure to quit?", QMessageBox.Yes |
QMessageBox.No, QMessageBox.No)
if choice == QMessageBox.Yes:
sys.exit()
else:
pass
if __name__ == "__main__":
app = QApplication(sys.argv)
Gui = window()
sys.exit(app.exec_())
I'm trying to create a simple UI that has the functionality to close when I use the shortcut Ctrl+Q or when I use the Exit into the File menu, to make it clearer I've created a fairly simple UI that goes with the code:
import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QAction, qApp
class MGen(QMainWindow):
def __init__(self):
super().__init__()
self.init_ui()
def init_ui(self):
exit_action = QAction('Exit', self)
exit_action.setShortcut('Ctrl+Q')
exit_action.triggered.connect(qApp.quit)
menu_bar = self.menuBar()
file_menu = menu_bar.addMenu('&File')
file_menu.addAction(exit_action)
self.setGeometry(0, 0, 500, 500)
self.setWindowTitle('MGen')
self.show()
if __name__ == '__main__':
app = QApplication(sys.argv)
mgen = MGen()
sys.exit(app.exec_())
Could anyone point what I'm doing wrong?