如何强制刷新 wx.Panel？

发布于 2024-07-29 15:58:20 字数 783 浏览 7 评论 0原文

我正在尝试修改面板的控件，更新它，然后继续执行代码。问题似乎是面板在刷新之前正在等待空闲。我当然尝试过刷新以及 GetSizer().Layout() ，甚至使用 SendSizeEvent() 方法向框架发送调整大小事件，但无济于事。我在这里不知所措，我发现很难相信没有办法强制重新绘制这个面板。这是更改控件的代码：

def HideButtons(self):
        self.newButton.Show(False)
        self.openButton.Show(False)
        self.exitButton.Show(False)
        self.buttonSizer.Detach(self.newButton)
        self.buttonSizer.Detach(self.openButton)
        self.buttonSizer.Detach(self.exitButton)
        loadingLabel = wx.StaticText(self.splashImage, wx.ID_ANY, "Loading...", style=wx.ALIGN_LEFT)
        loadingLabel.SetBackgroundColour(wx.WHITE)
        self.buttonSizer.Add(loadingLabel)
        self.GetSizer().Layout()
        self.splashImage.Refresh()

还有其他人遇到过类似的情况吗？如果是的话你是如何解决的？

原文

I am trying to modify the controls of a Panel, have it update, then continue on with code execution. The problem seems to be that the Panel is waiting for Idle before it will refresh itself. I've tried refresh of course as well as GetSizer().Layout() and even sent a resize event to the frame using the SendSizeEvent() method, but to no avail. I'm at a loss here, I find it difficult to believe there is no way to force a redrawing of this panel. Here is the code that changes the controls:

def HideButtons(self):
        self.newButton.Show(False)
        self.openButton.Show(False)
        self.exitButton.Show(False)
        self.buttonSizer.Detach(self.newButton)
        self.buttonSizer.Detach(self.openButton)
        self.buttonSizer.Detach(self.exitButton)
        loadingLabel = wx.StaticText(self.splashImage, wx.ID_ANY, "Loading...", style=wx.ALIGN_LEFT)
        loadingLabel.SetBackgroundColour(wx.WHITE)
        self.buttonSizer.Add(loadingLabel)
        self.GetSizer().Layout()
        self.splashImage.Refresh()

Has anybody else encountered anything like this? And how did you resolve it if so?

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看透却不说透 2024-08-05 15:58:21

我有一个 StaticBitmap ，同样，它不会通过任何这些技术进行更新（包括接受的答案中建议的 Update ）。

我发现在 Panel 上调用 .Hide() 和 .Show() 足以刷新图像。我怀疑如果我针对较低级别的对象（例如 StaticBitmap）运行这些函数，也会出现同样的情况。

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ㄖ落Θ余辉 2024-08-05 15:58:21

您可以将面板的可变部分放在子面板上，例如这样：

def MakeButtonPanels(self):
    self.buttonPanel1 = wx.Panel(self)
    self.Add(self.buttonPanel1, 0, wxALL|wxALIGN_LEFT, 5)
    # ... make the three buttons and the button sizer on buttonPanel1

    self.buttonPanel2 = wx.Panel(self)
    self.Add(self.buttonPanel2, 0, wxALL|wxALIGN_LEFT, 5)
    # ... make the loading label and its sizer on buttonPanel2

    self.buttonPanel2.Show(False) # hide it by default

def HideButtons(self):
    self.buttonPanel1.Show(False)
    self.buttonPanel2.Show(True)
    self.Layout()

You could put the mutable part of your panel on subpanels, e.g. like this:

def MakeButtonPanels(self):
    self.buttonPanel1 = wx.Panel(self)
    self.Add(self.buttonPanel1, 0, wxALL|wxALIGN_LEFT, 5)
    # ... make the three buttons and the button sizer on buttonPanel1

    self.buttonPanel2 = wx.Panel(self)
    self.Add(self.buttonPanel2, 0, wxALL|wxALIGN_LEFT, 5)
    # ... make the loading label and its sizer on buttonPanel2

    self.buttonPanel2.Show(False) # hide it by default

def HideButtons(self):
    self.buttonPanel1.Show(False)
    self.buttonPanel2.Show(True)
    self.Layout()

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