調整wxPython wx.Panel的大小？

Question

我試圖放置一個窗體上的圖像面板，當點擊一個按鈕時，在程序啓動時放在面板上的64x64圖像將被替換爲更大的320x224圖像 - 像素尺寸並不那麼重要他們是不同的大小。我幾乎得到了它 - 現在圖像都加載，它確實把第二個按鈕點擊時 - 不幸的是它是第二個圖像的左上64x64，而不是整個事情。

必須可以調整面板的大小，以便可以查看整個圖像嗎？這裏是我的代碼是：

#First we create our form elements. This app has a label on top of a button, both below a panel with an image on it, so we create a sizer and the elements 
self.v_sizer = wx.BoxSizer(wx.VERTICAL) 
self.imagePanel = wx.Panel(self, -1) 
self.FileDescriptionText = wx.StaticText(self, label="No file loaded") 
self.openFileDialog = wx.Button(self, label="Load a file", size=(320,40)) 
#Bind the button click to our press function 
self.openFileDialog.Bind(wx.EVT_BUTTON, self.onOpenFileDialog) 

#That done, we need to construct the form. First, put the panel, button and label in the vertical sizer... 
self.v_sizer.Add(self.imagePanel, 0, flag=wx.ALIGN_CENTER) 
self.v_sizer.Add(self.openFileDialog, 0, flag=wx.ALIGN_CENTER) 
self.v_sizer.Add(self.ROMDescriptionText, 0, flag=wx.ALIGN_CENTER) 
#then assign an image for the panel to have by default, and apply it 
self.imageToLoad = wx.Image("imgs/none_loaded.png", wx.BITMAP_TYPE_ANY).ConvertToBitmap() 
self.imageCtrl = wx.StaticBitmap(self.imagePanel, -1, self.imageToLoad, (0, 0), (self.imageToLoad.GetWidth(), self.imageToLoad.GetHeight())) 

#Set the sizer to be owned by the window 
self.SetSizer(self.v_sizer) 
#Set the current window size to the size of the sizer 
self.v_sizer.Fit(self) 
#Set the Minimum size of the window to the current size of the sizer 
self.SetMinSize(self.v_sizer.GetMinSize()) 


def onOpenFileDialog(self, event): 
    img = wx.Image("imgs/title.png", wx.BITMAP_TYPE_ANY) 
    self.imageCtrl.SetBitmap(wx.BitmapFromImage(img)) 
    self.imagePanel.Refresh() 

（這就是所謂的onOpenFileDialog因爲它最終會從ComboBox路徑選擇圖像）

我如何可以編輯onOpenFileDialog方法，如發現圖像尺寸首先，像它在初始表單元素創建中的self.imageCtrl行一樣？我找不到一種方法。

Answer 1

試着在你onOpenFileDialog()方法結束