wxpython-如何从自定义 wx 对话框中获取返回值

Question

这是来自wxpython-can we add ok button on pybusyinfo dialog?的后续问题

我已经创建了自定义对话框。当我们从另一个函数调用一个函数并且如果用户单击对话框窗口上的“不继续”按钮时，它会弹出，我需要获取真/假值来提示是否按下特定按钮或不并将该值传递给函数调用以继续进行。

但是对于 wx 自定义对话框，我无法返回任何值，因为一旦我们按下任何按钮，对话框就会被破坏。

有没有办法通过按钮单击事件从自定义对话框类中获取返回值，并且即使它被破坏也可以从类外部访问。

提前致谢。

def main():
    print "start execution"
    ret = getUserInput("Do you want to proceed?")
    if ret:
        print "proceed"
    else:
        print "exit"
def getUserInput(msg):
    class Busy(wx.Dialog):
        def __init__(self, parent, msg):
            wx.Dialog.__init__(self, parent, wx.ID_ANY, "Message", size=(420, 200))
            self.panel = wx.Panel(self, wx.ID_ANY)

            self.label = wx.StaticText(self.panel, label=msg, pos=(20, 20))

            self.gauge = wx.Gauge(self.panel, size=(300, 20), pos=(50, 50), style=wx.GA_HORIZONTAL)
            self.livelabel = wx.StaticText(self.panel, label="Time to live:", pos=(50, 80))
            self.lltime = wx.StaticText(self.panel, label="30", pos=(130, 80))
            self.notProceedButton = wx.Button(self.panel, label="Don't proceed", pos=(50, 100))

            self.timeoutButton = wx.Button(self.panel, label="Timer Off", pos=(250, 100))
            self.notProceedButton.Bind(wx.EVT_BUTTON, self.notProceed)

            self.timeoutButton.Bind(wx.EVT_BUTTON, self.OnNoTimeout)
            self.Bind(wx.EVT_CLOSE, self.OnQuit)
            self.timer = wx.Timer(self)
            self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
            self.lifetimer = wx.Timer(self)
            self.Bind(wx.EVT_TIMER, self.OnLifeTimer, self.lifetimer)
            self.timer.Start(100)
            self.lifetimer.Start(1000)
            self.timeoutbutton_pressed = False
            self.gauge.SetBackgroundColour(wx.Colour(0, 127, 255, 255))  # Slate Blue
            self.gauge.SetRange(100)
            self.gauge.SetValue(0)
            self.life = 30
            self.direction = 1
            self.result_text = True


        def OnTimer(self, evt):  # Update gauge
            x = int(self.gauge.GetValue())
            if x == 0:
                self.direction = 1
            elif x == 100:
                self.direction = -1
            x += self.direction
            self.gauge.SetValue(x)

        def OnLifeTimer(self, evt):  # Update time to live
            if self.timeoutbutton_pressed == True:
                return
            self.life -= 1
            self.lltime.SetLabelText(str(self.life))
            if self.life < 1:
                self.OnQuit(None)

        def OnNoTimeout(self, evt):  # toggle time to live
            if self.timeoutbutton_pressed == False:
                self.timeoutbutton_pressed = True
                self.timeoutButton.SetLabel("Timer On")
            else:
                self.timeoutbutton_pressed = False
                self.timeoutButton.SetLabel("Timer Off")

        def OnQuit(self, event):
            self.timer.Stop()
            self.lifetimer.Stop()
            self.Destroy()


        def notProceed(self, event):  # return input
            self.result_text = False
            self.timer.Stop()
            self.lifetimer.Stop()
            self.Destroy()

    app = wx.App()

    dlg = Busy(parent = None, msg=msg)
    dlg.ShowModal()

    return dlg.result_text 

Answer 1

当然。 EndModal 方法将返回您想要的任何返回码。即

    def OnLifeTimer(self, evt):  # Update time to live
        if self.timeoutbutton_pressed == True:
            return
        self.life -= 1
        self.lltime.SetLabelText(str(self.life))
        if self.life < 1:
            self.EndModal(SOME_ID_THAT_YOU_DEFINED_SOMEWHERE_ELSE)
            self.OnQuit(None)

传递给EndModal的参数是从ShowModal返回的

app = wx.App()

dlg = Busy(parent = None, msg=msg)
return_code = dlg.ShowModal()

附带说明，您不必在对话框中调用 Destroy。如果您想从中检索一些标志或其他信息，您可以在之后调用Destroy，即

app = wx.App()

dlg = Busy(parent = None, msg=msg)
return_value = dlg.ShowModal()
some_other_value = dlg.some_other_value
dlg.Destroy()

Answer 2

感谢 user2682863 的 EndModal() 优秀示例

import wx
class getUserInput(wx.Dialog):
    def __init__(self, parent, msg):
        wx.Dialog.__init__(self, parent, wx.ID_ANY, "Message", size=(420, 200))
        self.panel = wx.Panel(self, wx.ID_ANY)

        self.label = wx.StaticText(self.panel, label=msg, pos=(20, 20))

        self.gauge = wx.Gauge(self.panel, size=(300, 20), pos=(50, 50), style=wx.GA_HORIZONTAL)
        self.livelabel = wx.StaticText(self.panel, label="Time to live:", pos=(50, 80))
        self.lltime = wx.StaticText(self.panel, label="30", pos=(130, 80))
        self.notProceedButton = wx.Button(self.panel, label="Don't proceed", pos=(50, 100))

        self.timeoutButton = wx.Button(self.panel, label="Timer Off", pos=(250, 100))
        self.notProceedButton.Bind(wx.EVT_BUTTON, self.notProceed)

        self.timeoutButton.Bind(wx.EVT_BUTTON, self.OnNoTimeout)
        self.Bind(wx.EVT_CLOSE, self.OnQuit)
        self.timer = wx.Timer(self)
        self.Bind(wx.EVT_TIMER, self.OnTimer, self.timer)
        self.lifetimer = wx.Timer(self)
        self.Bind(wx.EVT_TIMER, self.OnLifeTimer, self.lifetimer)
        self.timer.Start(100)
        self.lifetimer.Start(1000)
        self.timeoutbutton_pressed = False
        self.gauge.SetBackgroundColour(wx.Colour(0, 127, 255, 255))  # Slate Blue
        self.gauge.SetRange(100)
        self.gauge.SetValue(0)
        self.life = 30
        self.direction = 1
        self.result_text = True


    def OnTimer(self, evt):  # Update gauge
        x = int(self.gauge.GetValue())
        if x == 0:
            self.direction = 1
        elif x == 100:
            self.direction = -1
        x += self.direction
        self.gauge.SetValue(x)

    def OnLifeTimer(self, evt):  # Update time to live
        if self.timeoutbutton_pressed == True:
            return
        self.life -= 1
        self.lltime.SetLabelText(str(self.life))
        if self.life < 1:
            self.OnQuit(None)

    def OnNoTimeout(self, evt):  # toggle time to live
        if self.timeoutbutton_pressed == False:
            self.timeoutbutton_pressed = True
            self.timeoutButton.SetLabel("Timer On")
        else:
            self.timeoutbutton_pressed = False
            self.timeoutButton.SetLabel("Timer Off")

    def OnQuit(self, event):
        self.timer.Stop()
        self.lifetimer.Stop()
        self.EndModal(True)

    def notProceed(self, event):  # return input
        self.result_text = False
        self.timer.Stop()
        self.lifetimer.Stop()
        self.EndModal(False)

app = wx.App()
dlg = getUserInput(parent = None, msg="Do you want to porceed?")
ret = dlg.ShowModal()
if ret:
    print "proceed"
else:
    print "exit"