我正在尝试在我的应用程序中创建一个关于弹出窗口的Python 3和PyQt4。到目前为止，我发出了一个与self.aboutWindow()相关的信号。
我有一个Ui_Mainwindow课程。我猜我必须创建一个新类并将它连接到self.aboutWindow函数，但我不知道该怎么做。
到目前为止，我已尝试this，this，this，this和this。
这是我的（不太好但正常工作）代码：
# -*- coding: utf-8 -*-
from PyQt4 import QtCore, QtGui
from os import system, chdir
from time import sleep
from subprocess import Popen
try:
_fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
try:
_encoding = QtGui.QApplication.UnicodeUTF8
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
def _translate(context, text, disambig):
return QtGui.QApplication.translate(context, text, disambig)
class Ui_MainWindow(object):
global x
x = 0
def setupUi(self, MainWindow, parent=None):
super(Ui_MainWindow, self)
MainWindow.setObjectName(_fromUtf8("MainWindow"))
MainWindow.resize(261, 390)
MainWindow.setMinimumSize(QtCore.QSize(261, 390))
MainWindow.setMaximumSize(QtCore.QSize(261, 390))
icon = QtGui.QIcon()
icon.addPixmap(QtGui.QPixmap(_fromUtf8("./icon.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off)
MainWindow.setWindowIcon(icon)
MainWindow.setUnifiedTitleAndToolBarOnMac(False)
self.centralwidget = QtGui.QWidget(MainWindow)
self.centralwidget.setMinimumSize(QtCore.QSize(261, 390))
self.centralwidget.setMaximumSize(QtCore.QSize(261, 390))
self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
self.action = QtGui.QComboBox(self.centralwidget)
self.action.setGeometry(QtCore.QRect(104, 60, 91, 22))
self.action.setObjectName(_fromUtf8("action"))
self.action.addItem(_fromUtf8(""))
self.action.addItem(_fromUtf8(""))
self.action.addItem(_fromUtf8(""))
self.action.addItem(_fromUtf8(""))
self.label = QtGui.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(20, 10, 221, 21))
self.label.setObjectName(_fromUtf8("label"))
self.label_2 = QtGui.QLabel(self.centralwidget)
self.label_2.setGeometry(QtCore.QRect(50, 60, 51, 21))
font = QtGui.QFont()
font.setPointSize(12)
self.label_2.setFont(font)
self.label_2.setObjectName(_fromUtf8("label_2"))
self.groupBox = QtGui.QGroupBox(self.centralwidget)
self.groupBox.setGeometry(QtCore.QRect(10, 100, 241, 191))
self.groupBox.setObjectName(_fromUtf8("groupBox"))
self.selectTime = QtGui.QRadioButton(self.groupBox)
self.selectTime.setGeometry(QtCore.QRect(20, 30, 82, 17))
self.selectTime.setObjectName(_fromUtf8("selectTime"))
self.buttonGroup_2 = QtGui.QButtonGroup(MainWindow)
self.buttonGroup_2.setObjectName(_fromUtf8("buttonGroup_2"))
self.buttonGroup_2.addButton(self.selectTime)
self.selectDate = QtGui.QRadioButton(self.groupBox)
self.selectDate.setGeometry(QtCore.QRect(20, 110, 82, 17))
self.selectDate.setObjectName(_fromUtf8("selectDate"))
self.buttonGroup_2.addButton(self.selectDate)
self.label_3 = QtGui.QLabel(self.groupBox)
self.label_3.setGeometry(QtCore.QRect(116, 60, 61, 20))
font = QtGui.QFont()
font.setPointSize(10)
self.label_3.setFont(font)
self.label_3.setObjectName(_fromUtf8("label_3"))
self.relativeTime = QtGui.QTimeEdit(self.groupBox)
self.relativeTime.setGeometry(QtCore.QRect(40, 60, 61, 22))
self.relativeTime.setObjectName(_fromUtf8("relativeTime"))
self.label_4 = QtGui.QLabel(self.groupBox)
self.label_4.setGeometry(QtCore.QRect(40, 140, 21, 21))
font = QtGui.QFont()
font.setPointSize(10)
self.label_4.setFont(font)
self.label_4.setObjectName(_fromUtf8("label_4"))
self.dateTime = QtGui.QDateTimeEdit(self.groupBox)
self.dateTime.setGeometry(QtCore.QRect(70, 140, 111, 22))
self.dateTime.setObjectName(_fromUtf8("dateTime"))
self.forceCheck = QtGui.QCheckBox(self.centralwidget)
self.forceCheck.setGeometry(QtCore.QRect(10, 300, 81, 21))
self.forceCheck.setObjectName(_fromUtf8("forceCheck"))
self.forceCheck.stateChanged.connect(self.changeText)
self.startButton = QtGui.QPushButton(self.centralwidget)
self.startButton.setGeometry(QtCore.QRect(170, 300, 71, 23))
self.startButton.setObjectName(_fromUtf8("startButton"))
self.startButton.clicked.connect(self.start)
self.label_5 = QtGui.QLabel(self.centralwidget)
self.label_5.setGeometry(QtCore.QRect(0, 330, 251, 20))
self.label_5.setObjectName(_fromUtf8("label_5"))
self.label_5.setAlignment(QtCore.Qt.AlignCenter)
self.label_6 = QtGui.QLabel(self.centralwidget)
self.label_6.setGeometry(QtCore.QRect(0, 360, 261, 20))
self.label_6.setObjectName(_fromUtf8("label_6"))
self.label_6.setAlignment(QtCore.Qt.AlignCenter)
self.dateTime.setDateTime(QtCore.QDateTime.currentDateTime())
self.about = QtGui.QPushButton(self.centralwidget)
self.about.setGeometry(QtCore.QRect(240, 0, 21, 21))
self.about.setObjectName(_fromUtf8("about"))
self.about.clicked.connect(self.aboutWindow)
global tim
global act
global forc
tim = QtCore.QTime.currentTime()
tim = str(tim.hour()) + ":" + str(tim.minute())
act = "Shut Down"
forc = ""
self.label_3.setEnabled(False)
self.relativeTime.setEnabled(False)
self.label_4.setEnabled(False)
self.dateTime.setEnabled(False)
self.selectTime.toggled.connect(self.greyOut2)
self.selectDate.toggled.connect(self.greyOut1)
self.action.currentIndexChanged.connect(self.changeText)
self.dateTime.dateTimeChanged.connect(self.changeText)
self.relativeTime.timeChanged.connect(self.changeText)
MainWindow.setCentralWidget(self.centralwidget)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
MainWindow.setWindowTitle(_translate("MainWindow", "Auto Shutdown", None))
self.action.setItemText(0, _translate("MainWindow", "Shut Down", None))
self.action.setItemText(1, _translate("MainWindow", "Restart", None))
self.action.setItemText(2, _translate("MainWindow", "Go to boot menu", None))
self.action.setItemText(3, _translate("MainWindow", "Hibernate", None))
self.label.setText(_translate("MainWindow", "Please chose an action and then a time for it.", None))
self.label_2.setText(_translate("MainWindow", "Action:", None))
self.groupBox.setTitle(_translate("MainWindow", "Time Schedule", None))
self.selectTime.setText(_translate("MainWindow", "Relative Time", None))
self.selectDate.setText(_translate("MainWindow", "Exact Time", None))
self.label_3.setText(_translate("MainWindow", "From now", None))
self.label_4.setText(_translate("MainWindow", "On", None))
self.forceCheck.setText(_translate("MainWindow", "Force Action", None))
self.startButton.setText(_translate("MainWindow", "Start", None))
self.about.setText(_translate("MainWindow", "?", None))
self.label_5.setText(_translate("MainWindow", "Your computer will " + act + " in ", None))
self.label_6.setText(_translate("MainWindow", tim + forc, None))
self.startButton.setEnabled(False)
def greyOut1(self): #selectDate on
self.label_3.setEnabled(False)
self.relativeTime.setEnabled(False)
self.label_4.setEnabled(True)
self.dateTime.setEnabled(True)
self.startButton.setEnabled(True)
def greyOut2(self): #selectTime on
self.label_3.setEnabled(True)
self.relativeTime.setEnabled(True)
self.label_4.setEnabled(False)
self.dateTime.setEnabled(False)
self.startButton.setEnabled(True)
def changeText(self):
if self.selectDate.isChecked():
global forc
if self.forceCheck.isChecked():
forc = " (Force)"
else:
forc = ""
act = self.action.currentText()
tim = self.dateTime.dateTime()
timm = tim.time()
dat = tim.date()
timee = str(dat.day()) + "." + str(dat.month()) + "." + str(dat.year()) + " " + str(timm.hour()) + ":" + str(timm.minute())
self.label_5.setText(_translate("MainWindow", "Your computer will " + act + " at ", None))
self.label_6.setText(_translate("MainWindow", timee + " " + forc,None))
else:
if self.forceCheck.isChecked():
forc = "(Force)"
else:
forc = ""
act = self.action.currentText()
tim = self.relativeTime.time()
now = QtCore.QTime.currentTime()
hr = now.hour() + tim.hour()
mn = now.minute() + tim.minute()
timee = str(hr) + ":" + str(mn)
self.label_5.setText(_translate("MainWindow", "Your computer will " + act + " at ", None))
self.label_6.setText(_translate("MainWindow", timee + forc,None))
def start(self):
global x
if x == 0:
x = 1
palette = QtGui.QPalette()
palette.setColor(QtGui.QPalette.Foreground,QtCore.Qt.darkGreen)
self.label_5.setPalette(palette)
self.label_6.setPalette(palette)
self.startButton.setText("Stop")
self.label_3.setEnabled(False)
self.relativeTime.setEnabled(False)
self.label_4.setEnabled(False)
self.dateTime.setEnabled(False)
self.action.setEnabled(False)
self.selectTime.setEnabled(False)
self.selectDate.setEnabled(False)
self.forceCheck.setEnabled(False)
global f
global t
global s
if self.forceCheck.isChecked():
f = " /f"
else:
f = ""
if self.action.currentText() == "Shut Down":
s = "/s"
elif self.action.currentText() == "Restart":
s = "/r"
elif self.action.currentText() == "Go to boot menu":
s = "/o"
elif self.action.currentText() == "Hibernate":
s = "/h"
if self.selectTime.isChecked():
tim = self.relativeTime.time()
now = QtCore.QTime.currentTime()
timm = int(tim.hour())
tinn = int(tim.minute())
hsec = timm * 60
hsec = hsec * 60
msec = tinn * 60
t = msec + hsec
chdir(".")
Popen("shutdwn " + s + " /t " + str(t) + f)
if self.selectDate.isChecked():
tim = self.dateTime.dateTime()
now = QtCore.QDateTime.currentDateTime()
t = tim.toTime_t() - now.toTime_t()
Popen("shutdwn " + s + " /t " + str(t) + f)
else:
x = 0
palette = QtGui.QPalette()
palette.setColor(QtGui.QPalette.Foreground,QtCore.Qt.black)
self.label_5.setPalette(palette)
self.label_6.setPalette(palette)
chdir(".")
Popen("shutdwn /a")
self.action.setEnabled(True)
self.selectTime.setEnabled(True)
self.selectDate.setEnabled(True)
self.forceCheck.setEnabled(True)
self.startButton.setText("Start")
def aboutWindow(self):
pass #Wat do me do here?
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
MainWindow = QtGui.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_())
Windows 10 Pro 64位，Python 3.4（Annaconda3 distibution），PyQt4
答案 0 :(得分：2)
当您说您的代码正常工作时，我认为您是正确的。所以你必须有一个标有＆＃34;关于＆＃34;的按钮。你想要点击它时打开一个弹出窗口，对吧？您已经创建了一个名为aboutWindow的事件处理程序，因此最简单的方法是调用QMessageBox.about：
def aboutWindow(self):
QMessageBox.about(self,"Hello",
"My StackOverflow code was so long that nobody wanted to read it")