viewer.py 文件源码

def view(self, file):
        '''
        Called when loading a new image. Pass arg bytesIO image file
        '''
        img = wx.Image(file, wx.BITMAP_TYPE_ANY)
        # scale the image, preserving the aspect ratio
        W = img.GetWidth()
        H = img.GetHeight()
        if W > H:
            NewW = self.PhotoMaxSize
            NewH = self.PhotoMaxSize * H / W
        else:
            NewH = self.PhotoMaxSize
            NewW = self.PhotoMaxSize * W / H
        img = img.Scale(NewW, NewH)

        self.imageCtrl.SetBitmap(wx.BitmapFromImage(img))
        self.panel.Refresh()