wxpython GUI界面显示jpg图片

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# show a jpeg (.jpg) image using wxPython,newer coding style
# two different ways to load and display are given
# tested with Python24 and wxPython25   vegaseat   24jul2005
 
import wx
import  cStringIO
 
class Panel1(wx.Panel):
  """ class Panel1 creates a panel with an image on it,inherits wx.Panel """
  def __init__(self,parent,id):
    # create the panel
    wx.Panel.__init__(self,id)
    try:
        # pick a .jpg file you have in the working folder
        imageFile = 'Moo.jpg'
        data = open(imageFile,"rb").read()
        # convert to a data stream
        stream = cStringIO.StringIO(data)
        # convert to a bitmap
        bmp = wx.BitmapFromImage( wx.ImageFromStream( stream ))
        # show the bitmap,(5,5) are upper left corner coordinates
        wx.StaticBitmap(self,-1,bmp,5))
         
        # alternate (simpler) way to load and display a jpg image from a file
        # actually you can load .jpg  .png  .bmp  or .gif files
        jpg1 = wx.Image(imageFile,wx.BITMAP_TYPE_ANY).ConvertToBitmap()
        # bitmap upper left corner is in the position tuple (x,y) = (5,5)
        wx.StaticBitmap(self,jpg1,(10 + jpg1.GetWidth(),5),(jpg1.GetWidth(),jpg1.GetHeight()))
    except IOError:
        print "Image file %s not found" % imageFile
        raise SystemExit
 
 
app = wx.PySimpleApp()
# create a window/frame,no parent,-1 is default ID
# increase the size of the frame for larger images
frame1 = wx.Frame(None,"An image on a panel",size = (400,300))
# call the derived class
Panel1(frame1,-1)
frame1.Show(1)
app.MainLoop()

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