Scale an image in GTK

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太阳男子
太阳男子 2020-12-16 13:19

In GTK, how can I scale an image? Right now I load images with PIL and scale them beforehand, but is there a way to do it with GTK?

6条回答
  •  余生分开走
    2020-12-16 13:41

    Scale image from URL. ( scale reference )

    import pygtk
    pygtk.require('2.0')
    import gtk
    import urllib2
    
    class MainWin:
    
        def destroy(self, widget, data=None):
            print "destroy signal occurred"
            gtk.main_quit()
    
        def __init__(self):
            self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
            self.window.connect("destroy", self.destroy)
            self.window.set_border_width(10)
            self.image=gtk.Image()
    
            self.response=urllib2.urlopen(
                'http://192.168.1.11/video/1024x768.jpeg')
    
            self.loader=gtk.gdk.PixbufLoader()         
            self.loader.set_size(200, 100)   
            #### works but throwing: glib.GError: Unrecognized image file format       
            self.loader.write(self.response.read())
            self.loader.close()
            self.image.set_from_pixbuf(self.loader.get_pixbuf())
    
            self.window.add(self.image)
            self.image.show()
    
    
            self.window.show()
    
        def main(self):
            gtk.main()
    
    if __name__ == "__main__":
        MainWin().main()
    

    *EDIT: (work out fix) *

    try:
      self.loader=gtk.gdk.PixbufLoader()         
      self.loader.set_size(200, 100)   
    
                # ignore tihs: 
                #  glib.GError: Unrecognized image file format       
    
      self.loader.write(self.response.read())
      self.loader.close()
      self.image.set_from_pixbuf(self.loader.get_pixbuf())
    
    except Exception, err:
      print err
      pass
    

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