[英]PyQt QDialog return response yes or no
I have a QDialog class我有一个 QDialog 类
confirmation_dialog = uic.loadUiType("ui\\confirmation_dialog.ui")[0]
class ConfirmationDialog(QDialog,confirmation_dialog):
def __init__(self,parent=None):
QDialog.__init__(self,parent)
self.setupUi(self)
message = "Hello, Dialog test"
self.yes_button.clicked.connect(self.yes_clicked)
self.no_button.clicked.connect(self.no_clicked)
self.message_box.insertPlainText(message)
def yes_clicked(self):
self.emit(SIGNAL("dialog_response"),"yes")
def no_clicked(self):
self.emit(SIGNAL("dialog_response"),"no")
I have a function which requires confirmation to continue or not, but with the current implementation it doesn't wait for QDialog
to close.我有一个需要确认是否继续的函数,但在当前的实现中,它不会等待
QDialog
关闭。
How can I make my function wait for response from QDialog
and then proceed accordingly.如何让我的函数等待
QDialog
响应,然后进行相应的处理。
I want to implement something similar to confirm
function as shown below我想实现类似于
confirm
功能的东西,如下所示
def function(self):
....
....
if self.confirm() == 'yes':
#do something
elif self.confirm() == 'no':
#do something
def confirm(self):
dialog = ConfirmationDialog()
dialog.show()
return #response from dialog
You would use dialog.exec_()
, which will open the dialog in a modal, blocking mode and returns an integer that indicates whether the dialog was accepted or not.您将使用
dialog.exec_()
,它将以模态、阻塞模式打开对话框并返回一个整数,指示该对话框是否被接受。 Generally, instead of emitting signals, you probably just want to call self.accept()
or self.reject()
inside the dialog to close it.通常,您可能只想在对话框内调用
self.accept()
或self.reject()
来关闭它,而不是发出信号。
dialog = ConfirmationDialog()
result = dialog.exec_()
if result: # accepted
return 'accepted'
If I'm using a dialog to get a specific set of values from the user, I'll usually wrap it in a staticmethod
, that way I can just call it and get values back within the control flow of my application, just like a normal function.如果我使用对话框从用户那里获取一组特定的值,我通常会将它包装在一个
staticmethod
,这样我就可以调用它并在我的应用程序的控制流中取回值,就像正常功能。
class MyDialog(...)
def getValues(self):
return (self.textedit.text(), self.combobox.currentText())
@staticmethod
def launch(parent):
dlg = MyDialog(parent)
r = dlg.exec_()
if r:
return dlg.getValues()
return None
values = MyDialog.launch(None)
However, in almost all cases where I just need to present a message to the user, or get them to make a choice by clicking a button, or I need them to input a small piece of data, I can use the built-in static methods on the normal dialog classes -- QMessageBox
, QInputDialog
然而,在几乎所有的情况下,我只需要向用户展示一条消息,或者通过点击按钮让他们做出选择,或者我需要他们输入一小段数据,我可以使用内置的静态普通对话框类上的方法——
QMessageBox
、 QInputDialog
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