PyQt：强制弹出窗口在前面

我的应用程序中有一个关于窗口的简单弹出窗口。它有一个“Ok”按钮，可以关闭窗口。我只想通过“确定”按钮使这个窗口变得清晰可见，这样你就不会无法集中精力去摆脱它。PyQt：强制弹出窗口在前面

这将是与Internet Explorer有关的窗口相同的行为。

非常感谢！

编辑：代码！

# -*- coding: utf-8 -*- 
from PyQt4 import QtCore, QtGui 
from os import system, chdir,getcwd 
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 MyPopup(QtGui.QWidget): 
    def __init__(self): 
     QtGui.QWidget.__init__(self) 
     icon = QtGui.QIcon() 
     icon.addPixmap(QtGui.QPixmap(_fromUtf8("./about.png")), QtGui.QIcon.Normal, QtGui.QIcon.Off) 
     self.setWindowIcon(icon) 
     resolution = QtGui.QDesktopWidget().screenGeometry() 
     self.move((resolution.width()/2) - (self.frameSize().width()/2),(resolution.height()/2) - (self.frameSize().height()/2)) 
     pic = QtGui.QLabel(self) 
     pic.setGeometry(20, 20, 128, 128) 
     pic.setPixmap(QtGui.QPixmap(getcwd() + "/icon.png")) 
     self.setMinimumSize(QtCore.QSize(420, 300)) 
     self.setMaximumSize(QtCore.QSize(420, 300)) 
     labele = QtGui.QLabel(self) 
     labele.setGeometry(QtCore.QRect(158, 20 , 2000, 50)) 
     font = QtGui.QFont() 
     font.setPointSize(26) 
     labele.setText(_translate("MyPopup", "Auto Shutdown", None)) 
     labele.setFont(font) 

     labelel = QtGui.QLabel(self) 
     labelel.setGeometry(QtCore.QRect(158, 70 , 2000, 25)) 
     font = QtGui.QFont() 
     font.setPointSize(16) 
     labelel.setText(_translate("MyPopup", "Jan Murić", None)) 
     labelel.setFont(font) 


     labelo = QtGui.QLabel(self) 
     labelo.setGeometry(QtCore.QRect(100, 175 , 300, 100)) 
     font = QtGui.QFont() 
     font.setPointSize(10) 
     labelo.setText(_translate("MyPopup", "FREEWARE\n\nVersion: 1.0\nE-Mail:  [email protected]", None)) 
     labelo.setFont(font) 

     exitButton = QtGui.QPushButton(self) 
     exitButton.setGeometry(QtCore.QRect(347, 276, 71, 23)) 
     exitButton.setText(_translate("MyPopup", "Ok", None)) 
     exitButton.clicked.connect(self.quit) 

    def quit(self): 
     self.close() 

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") 

    @QtCore.pyqtSlot() 
    def aboutWindow(self): 
     self.w = MyPopup() 
     self.w.show() 



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_())

来源

2015-09-03 J. Doe

发布您的代码，所以我们可以帮助应用程序的其余部分进行交互。 –

@TimWakeham我们走吧！我添加了代码。 –

让您Mypopup类扩展了QDialog然后调用函数_exec它将使您弹出模式，所以你不会成为能够无需处理弹出第一

class MyPopup(QDialog): 
    Qdialog.__init__.(self) 
//and on your aboutWindow function call _exec function 
self.w.exec_()

来源

2015-09-03 22:52:38 DreadfulWeather

而不是从QWidget继承的，使用具有setModal(True)一个QDialog。

class MyPopup(QtGui.QDialog): 
    def __init__(self): 
     QtGui.QDialog.__init__(self) 
     self.setModal(True) 
     icon = QtGui.QIcon()

希望它有帮助！

来源

2015-09-03 22:46:09 cdonts

你可以让它从QDialog，而不是QWidget继承然后用self.w.exec_()

不知道证明，如果你想对话框关闭按钮（X）要禁用或完全隐藏让您的弹出式模式，但你可以看看self.setWindowFlags(Qt.FramelessWindowHint)做你想做的。

来源

2015-09-03 22:47:02

看起来像一个好主意（FramelessWindowHInt）！但我不断收到一个错误“AttributeError：'module'object has no attribute'FramelessWindowHint'” 这发生在我尝试使用Qt，QtGui和QCore时。他们都没有FrameLessWindowHint属性？：/ –

'from PyQt4.Qtcore import Qt' –

PyQt：强制弹出窗口在前面

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