wx.Radiobox.SetBackgroundColour("pink") 在鼠标经过前不会更改单选按钮颜色

1 投票
1 回答
670 浏览
提问于 2025-04-17 22:04

我创建了一个 wx.Dialog 对话框,里面有一些 wx.Radiobox 需要进行选择验证。如果用户没有做出选择,验证器不会返回 True,然后会弹出一个 wx.MessageBox 提醒用户必须选择一个选项。同时,背景颜色应该变成粉色。

这里的问题是,当我使用 RadioBox.SetBackgroundColour("pink") 时,RadioBox的标签文字背景颜色变成了粉色,这很正常,但RadioButton的标签文字背景颜色不会改变,直到鼠标经过时才会变。

我在想这是为什么,以及如何解决这个问题。我查阅了官方文档和谷歌搜索,但没有找到相关信息。有没有人知道该怎么做?

我的平台是win8.1x64,使用的python版本是2.7.3,wxpython版本是2.8.12.1。由于使用的是Psychopy独立包,所以这两个版本都比较旧。

对话框的代码如下,这是一个相当简单的例子:

class Dlg(wx.Dialog):
    """A simple dialogue box."""

    def __init__(self):
        global app
        app = wx.PySimpleApp()
        wx.Dialog.__init__(self, None,-1)

        self.sizer = wx.FlexGridSizer(cols=1)

    def show(self, cancelBTN=False):
        """Show a dialog with 2 RadioBox"""

        # add two RadioBox

        RadioBox1 = wx.RadioBox(self, -1, label="Wierd color", choices=["", "choice A", "choice B"], validator=RadioObjectValidator())
        RadioBox2 = wx.RadioBox(self, -1, label="Wierd color", choices=["", "choice A", "choice B"], validator=RadioObjectValidator())
        RadioBox1.ShowItem(0, show=False)  # Hide the first choice
        RadioBox2.ShowItem(0, show=False)  # Hide the first choice

        RadioBox1.GetValue = RadioBox1.GetStringSelection
        RadioBox2.GetValue = RadioBox2.GetStringSelection
        self.sizer.Add(RadioBox1, 1, wx.ALIGN_LEFT)
        self.sizer.Add(RadioBox2, 1, wx.ALIGN_LEFT)

        # add buttons for OK

        self.sizer.Add(wx.Button(self, wx.ID_OK), 1, flag=wx.ALIGN_RIGHT)

        self.SetSizerAndFit(self.sizer)

        if self.ShowModal() == wx.ID_OK:
            pass
            # do something

        self.Destroy()

验证器的代码是这样的:

class RadioObjectValidator(wx.PyValidator):
    """ This validator is used to ensure that the user has entered something
        into the text object editor dialog's text field.
    """
    def __init__(self):
        """ Standard constructor.
        """
        wx.PyValidator.__init__(self)

    def Clone(self):
        """ Standard cloner.

            Note that every validator must implement the Clone() method.
        """
        return RadioObjectValidator()

    def Validate(self, win):
        """ Validate the contents of the given RadioBox control.
        """
        RadioBox = self.GetWindow()
        choice = RadioBox.GetValue()

        if not choice:
            wx.MessageBox(u'Choose something please', u'info', wx.OK | wx.ICON_EXCLAMATION)
            RadioBox.SetBackgroundColour("pink")
            RadioBox.SetFocus()
            RadioBox.Refresh()
            return False
        else:
            RadioBox.SetBackgroundColour(
                wx.SystemSettings_GetColour(wx.SYS_COLOUR_WINDOW))
            RadioBox.Refresh()
            return True

    def TransferToWindow(self):
        """ Transfer data from validator to window.

            The default implementation returns False, indicating that an error
            occurred.  We simply return True, as we don't do any data transfer.
        """
        return True  # Prevent wxDialog from complaining.

    def TransferFromWindow(self):
        """ Transfer data from window to validator.

            The default implementation returns False, indicating that an error
            occurred.  We simply return True, as we don't do any data transfer.
        """
        return True  # Prevent wxDialog from complaining.

然后简单地运行如下:

if __name__ == "__main__":
    test = Dlg()
    test.show()

1 个回答

0

这个问题是wxpython2.8.12.1里的一个错误,已经在wxpython3.0.0.0版本中修复了。感谢@GreenAsJade的提醒。

撰写回答