单击预期按钮时未触发 PyQt5 按钮单击事件
PyQt5 button click event not fired on click of the intended button
我正在为 PyQt5 中的应用程序开发安装菜单。目录结构如下：
install-menu/
├── app.py
├── controller
│ ├── controller.py
│ ├── __init__.py
│ └── __pycache__
│ ├── controller.cpython-38.pyc
│ └── __init__.cpython-38.pyc
├── model
│ ├── __init__.py
│ ├── model.py
│ └── __pycache__
│ ├── __init__.cpython-38.pyc
│ └── model.cpython-38.pyc
└── view
├── __init__.py
├── __pycache__
│ ├── __init__.cpython-38.pyc
│ └── view.cpython-38.pyc
└── view.py
我正在尝试遵循 MVC 架构。相关文件代码如下：
- app.py
#!/usr/bin/env python3
from controller.controller import Installer
from view.view import GUIDisplay
from model.model import parameters
from PyQt5.QtWidgets import QApplication
import sys
# Client code
def main():
"""Main function."""
# Create an instance of `QApplication`
qapp = QApplication(sys.argv)
# Show the installer's GUI
view = GUIDisplay()
view.show()
# Create instances of the model and the controller
model = parameters()
#Calling Installer/Controller
Installer(model=model, view=view)
# Execute installer's main loop
sys.exit(qapp.exec_())
if __name__ == "__main__":
main()
- controller.py
# Create a Controller class to connect the GUI and the model
class Installer:
"""Installer Controller."""
def __init__(self, model, view):
"""Controller initializer."""
self._model = model
self._view = view
# Connect signals and slots
self._connectSignals()
def _connectSignals(self):
"""Connect signals and slots."""
self.installBtn = self._view.install
self.installBtn.clicked.connect(self.printMe)
def printMe(self):
"""Build functionality for installation of PXE Server"""
self.pxeValues = self._model.getPxe(self._view)
print (pxeValues)
- model.py
# Create a Model to handle the operations
# Define a global error object
ERROR_MSG = "ERROR"
class parameters:
def __init__(self):
self.pxeHostname=""
self.pxeIP=""
def getPxe(self, view):
"""Evaluate an expression."""
self.pxeDetails = []
print ("Read Label Function called.")
try:
self.pxeHostname = view.txtPxeHostname.text()
self.pxeIP = view.txtPxeIP.text()
self.pxeDetails.append(self.pxeHostname)
self.pxeDetails.append(self.pxeIP)
except Exception:
self.pxeDetails.append(ERROR_MSG)
return pxeDetails
- view.py
# Import modules for view to work
# Import QApplication and the required widgets from PyQt5.QtWidgets
from PyQt5.QtCore import Qt
from PyQt5.QtCore import QRect
from PyQt5.QtCore import QMetaObject
from PyQt5.QtCore import QCoreApplication
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QFormLayout
from PyQt5.QtWidgets import QHBoxLayout
from PyQt5.QtWidgets import QStatusBar
# Create a subclass of QMainWindow to setup the installer's GUI
class GUIDisplay(QMainWindow):
"""Installer's View (GUI)."""
def __init__(self):
"""View initializer."""
super().__init__()
# Set some main window's properties
QMainWindow.setObjectName(self,"MainWindow")
QMainWindow.resize(self, 795, 600)
self.centralwidget = QWidget()
self.centralwidget.setObjectName("centralwidget")
# Create the display and the buttons
self.createDisplay()
self.createButtons()
self.menus()
self.fillPlaceHolders(QMainWindow)
QMetaObject.connectSlotsByName(self)
def menus(self):
menu = self.menuBar()
# Setting Menu and items
settings = menu.addMenu("Settings")
install = settings.addMenu("Install")
reinstall = settings.addMenu("Reinstall")
status = settings.addMenu("Status")
def createDisplay(self):
"""Creating display layouts."""
# Main Heading
self.mainHeading = QLabel(self.centralwidget)
self.mainHeading.setGeometry(QRect(350, 20, 141, 20))
self.mainHeading.setObjectName("mainHeading")
# PXE Server configuration paramaters and Layouts
## Creating main Heading and labels for PXE Server Configurations
self.pxeConfig = QLabel(self.centralwidget)
self.pxeConfig.setGeometry(QRect(10, 70, 231, 18))
self.pxeConfig.setObjectName("pxeConfig")
## Adding Form Layout for Hostname and IP for PXE Server
self.pxeServerLayout = QWidget(self.centralwidget)
self.pxeServerLayout.setGeometry(QRect(129, 90, 561, 61))
self.pxeServerLayout.setObjectName("pxeServerLayout")
self.pxeLayout = QFormLayout(self.pxeServerLayout)
self.pxeLayout.setContentsMargins(0, 0, 0, 0)
self.pxeLayout.setObjectName("pxeLayout")
## Adding Hostname Labels and TextField for PXE Server
self.pxeHostname = QLabel(self.pxeServerLayout)
self.pxeHostname.setObjectName("pxeHostname")
self.pxeLayout.setWidget(0, QFormLayout.LabelRole, self.pxeHostname)
self.txtPxeHostname = QLineEdit(self.pxeServerLayout)
self.txtPxeHostname.setObjectName("txtPxeHostname")
## Adding IP Address Labels and TextField for PXE Server
self.pxeLayout.setWidget(0, QFormLayout.FieldRole, self.txtPxeHostname)
self.pxeIP = QLabel(self.pxeServerLayout)
self.pxeIP.setObjectName("pxeIP")
self.pxeLayout.setWidget(1, QFormLayout.LabelRole, self.pxeIP)
self.txtPxeIP = QLineEdit(self.pxeServerLayout)
self.txtPxeIP.setObjectName("txtPxeIP")
self.pxeLayout.setWidget(1, QFormLayout.FieldRole, self.txtPxeIP)
def createButtons(self):
"""Create the buttons."""
# Add buttonsLayout to the general layout
self.horizontalLayoutWidget = QWidget(self.centralwidget)
self.horizontalLayoutWidget.setGeometry(QRect(133, 500, 561, 31))
self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
self.horizontalLayout = QHBoxLayout(self.horizontalLayoutWidget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.install = QPushButton(self.horizontalLayoutWidget)
self.install.setObjectName("install")
self.horizontalLayout.addWidget(self.install)
self.reinstall = QPushButton(self.horizontalLayoutWidget)
self.reinstall.setObjectName("reinstall")
self.horizontalLayout.addWidget(self.reinstall)
self.status = QPushButton(self.horizontalLayoutWidget)
self.status.setObjectName("status")
self.horizontalLayout.addWidget(self.status)
QMainWindow.setCentralWidget(self, self.centralwidget)
self.statusbar = QStatusBar()
self.statusbar.setObjectName("statusbar")
QMainWindow.setStatusBar(self, self.statusbar)
def fillPlaceHolders(self, MainWindow):
_translate = QCoreApplication.translate
MainWindow.setWindowTitle(self, _translate("MainWindow", "PXE Server Installer"))
self.mainHeading.setText("Installation Setup")
self.pxeConfig.setText("PxeBoot Server Configuration:")
self.pxeHostname.setText("PXE Hostname:")
self.pxeIP.setText("PXE Server IP:")
self.install.setText("Install")
self.reinstall.setText("Reinstall")
self.status.setText("status")
但是点击安装按钮回调函数没有启动。我不知道出了什么问题。使用与按钮上相同的文本单击菜单项时，应调用相同的功能。
问题很简单：您必须将 Installer class 对象分配给一个变量：
installer = Installer(model=model, view=view)
另一方面，您必须将 self.pxeDetails 更改为 model.py 中的 pxeDetails:
def getPxe(self, view):
"""Evaluate an expression."""
pxeDetails = []
print ("Read Label Function called.")
try:
self.pxeHostname = view.txtPxeHostname.text()
self.pxeIP = view.txtPxeIP.text()
pxeDetails.append(self.pxeHostname)
pxeDetails.append(self.pxeIP)
except Exception:
pxeDetails.append(ERROR_MSG)
return pxeDetails
并将 self.pxeValues 更改为 controller.py 中的 pxeValues:
def printMe(self):
"""Build functionality for installation of PXE Server"""
pxeValues = self._model.getPxe(self._view)
print (pxeValues)
我正在为 PyQt5 中的应用程序开发安装菜单。目录结构如下：
install-menu/
├── app.py
├── controller
│ ├── controller.py
│ ├── __init__.py
│ └── __pycache__
│ ├── controller.cpython-38.pyc
│ └── __init__.cpython-38.pyc
├── model
│ ├── __init__.py
│ ├── model.py
│ └── __pycache__
│ ├── __init__.cpython-38.pyc
│ └── model.cpython-38.pyc
└── view
├── __init__.py
├── __pycache__
│ ├── __init__.cpython-38.pyc
│ └── view.cpython-38.pyc
└── view.py
我正在尝试遵循 MVC 架构。相关文件代码如下：
- app.py
#!/usr/bin/env python3
from controller.controller import Installer
from view.view import GUIDisplay
from model.model import parameters
from PyQt5.QtWidgets import QApplication
import sys
# Client code
def main():
"""Main function."""
# Create an instance of `QApplication`
qapp = QApplication(sys.argv)
# Show the installer's GUI
view = GUIDisplay()
view.show()
# Create instances of the model and the controller
model = parameters()
#Calling Installer/Controller
Installer(model=model, view=view)
# Execute installer's main loop
sys.exit(qapp.exec_())
if __name__ == "__main__":
main()
- controller.py
# Create a Controller class to connect the GUI and the model
class Installer:
"""Installer Controller."""
def __init__(self, model, view):
"""Controller initializer."""
self._model = model
self._view = view
# Connect signals and slots
self._connectSignals()
def _connectSignals(self):
"""Connect signals and slots."""
self.installBtn = self._view.install
self.installBtn.clicked.connect(self.printMe)
def printMe(self):
"""Build functionality for installation of PXE Server"""
self.pxeValues = self._model.getPxe(self._view)
print (pxeValues)
- model.py
# Create a Model to handle the operations
# Define a global error object
ERROR_MSG = "ERROR"
class parameters:
def __init__(self):
self.pxeHostname=""
self.pxeIP=""
def getPxe(self, view):
"""Evaluate an expression."""
self.pxeDetails = []
print ("Read Label Function called.")
try:
self.pxeHostname = view.txtPxeHostname.text()
self.pxeIP = view.txtPxeIP.text()
self.pxeDetails.append(self.pxeHostname)
self.pxeDetails.append(self.pxeIP)
except Exception:
self.pxeDetails.append(ERROR_MSG)
return pxeDetails
- view.py
# Import modules for view to work
# Import QApplication and the required widgets from PyQt5.QtWidgets
from PyQt5.QtCore import Qt
from PyQt5.QtCore import QRect
from PyQt5.QtCore import QMetaObject
from PyQt5.QtCore import QCoreApplication
from PyQt5.QtWidgets import QGridLayout
from PyQt5.QtWidgets import QLineEdit
from PyQt5.QtWidgets import QMainWindow
from PyQt5.QtWidgets import QPushButton
from PyQt5.QtWidgets import QVBoxLayout
from PyQt5.QtWidgets import QWidget
from PyQt5.QtWidgets import QLabel
from PyQt5.QtWidgets import QFormLayout
from PyQt5.QtWidgets import QHBoxLayout
from PyQt5.QtWidgets import QStatusBar
# Create a subclass of QMainWindow to setup the installer's GUI
class GUIDisplay(QMainWindow):
"""Installer's View (GUI)."""
def __init__(self):
"""View initializer."""
super().__init__()
# Set some main window's properties
QMainWindow.setObjectName(self,"MainWindow")
QMainWindow.resize(self, 795, 600)
self.centralwidget = QWidget()
self.centralwidget.setObjectName("centralwidget")
# Create the display and the buttons
self.createDisplay()
self.createButtons()
self.menus()
self.fillPlaceHolders(QMainWindow)
QMetaObject.connectSlotsByName(self)
def menus(self):
menu = self.menuBar()
# Setting Menu and items
settings = menu.addMenu("Settings")
install = settings.addMenu("Install")
reinstall = settings.addMenu("Reinstall")
status = settings.addMenu("Status")
def createDisplay(self):
"""Creating display layouts."""
# Main Heading
self.mainHeading = QLabel(self.centralwidget)
self.mainHeading.setGeometry(QRect(350, 20, 141, 20))
self.mainHeading.setObjectName("mainHeading")
# PXE Server configuration paramaters and Layouts
## Creating main Heading and labels for PXE Server Configurations
self.pxeConfig = QLabel(self.centralwidget)
self.pxeConfig.setGeometry(QRect(10, 70, 231, 18))
self.pxeConfig.setObjectName("pxeConfig")
## Adding Form Layout for Hostname and IP for PXE Server
self.pxeServerLayout = QWidget(self.centralwidget)
self.pxeServerLayout.setGeometry(QRect(129, 90, 561, 61))
self.pxeServerLayout.setObjectName("pxeServerLayout")
self.pxeLayout = QFormLayout(self.pxeServerLayout)
self.pxeLayout.setContentsMargins(0, 0, 0, 0)
self.pxeLayout.setObjectName("pxeLayout")
## Adding Hostname Labels and TextField for PXE Server
self.pxeHostname = QLabel(self.pxeServerLayout)
self.pxeHostname.setObjectName("pxeHostname")
self.pxeLayout.setWidget(0, QFormLayout.LabelRole, self.pxeHostname)
self.txtPxeHostname = QLineEdit(self.pxeServerLayout)
self.txtPxeHostname.setObjectName("txtPxeHostname")
## Adding IP Address Labels and TextField for PXE Server
self.pxeLayout.setWidget(0, QFormLayout.FieldRole, self.txtPxeHostname)
self.pxeIP = QLabel(self.pxeServerLayout)
self.pxeIP.setObjectName("pxeIP")
self.pxeLayout.setWidget(1, QFormLayout.LabelRole, self.pxeIP)
self.txtPxeIP = QLineEdit(self.pxeServerLayout)
self.txtPxeIP.setObjectName("txtPxeIP")
self.pxeLayout.setWidget(1, QFormLayout.FieldRole, self.txtPxeIP)
def createButtons(self):
"""Create the buttons."""
# Add buttonsLayout to the general layout
self.horizontalLayoutWidget = QWidget(self.centralwidget)
self.horizontalLayoutWidget.setGeometry(QRect(133, 500, 561, 31))
self.horizontalLayoutWidget.setObjectName("horizontalLayoutWidget")
self.horizontalLayout = QHBoxLayout(self.horizontalLayoutWidget)
self.horizontalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout.setObjectName("horizontalLayout")
self.install = QPushButton(self.horizontalLayoutWidget)
self.install.setObjectName("install")
self.horizontalLayout.addWidget(self.install)
self.reinstall = QPushButton(self.horizontalLayoutWidget)
self.reinstall.setObjectName("reinstall")
self.horizontalLayout.addWidget(self.reinstall)
self.status = QPushButton(self.horizontalLayoutWidget)
self.status.setObjectName("status")
self.horizontalLayout.addWidget(self.status)
QMainWindow.setCentralWidget(self, self.centralwidget)
self.statusbar = QStatusBar()
self.statusbar.setObjectName("statusbar")
QMainWindow.setStatusBar(self, self.statusbar)
def fillPlaceHolders(self, MainWindow):
_translate = QCoreApplication.translate
MainWindow.setWindowTitle(self, _translate("MainWindow", "PXE Server Installer"))
self.mainHeading.setText("Installation Setup")
self.pxeConfig.setText("PxeBoot Server Configuration:")
self.pxeHostname.setText("PXE Hostname:")
self.pxeIP.setText("PXE Server IP:")
self.install.setText("Install")
self.reinstall.setText("Reinstall")
self.status.setText("status")
但是点击安装按钮回调函数没有启动。我不知道出了什么问题。使用与按钮上相同的文本单击菜单项时，应调用相同的功能。
问题很简单：您必须将 Installer class 对象分配给一个变量：
installer = Installer(model=model, view=view)
另一方面，您必须将 self.pxeDetails 更改为 model.py 中的 pxeDetails:
def getPxe(self, view):
"""Evaluate an expression."""
pxeDetails = []
print ("Read Label Function called.")
try:
self.pxeHostname = view.txtPxeHostname.text()
self.pxeIP = view.txtPxeIP.text()
pxeDetails.append(self.pxeHostname)
pxeDetails.append(self.pxeIP)
except Exception:
pxeDetails.append(ERROR_MSG)
return pxeDetails
并将 self.pxeValues 更改为 controller.py 中的 pxeValues:
def printMe(self):
"""Build functionality for installation of PXE Server"""
pxeValues = self._model.getPxe(self._view)
print (pxeValues)