import gtk
from PIL import Image

class MyCallbacks :
    def LoadImage(self,obj,data=None):
	self.fname = obj.get_filename()
     	im = Image.open(self.fname)
	(width, height) = im.size
	self.builder.get_object('label1').set_text(width)
	self.builder.get_object('label2').set_text(height)

    def __init__(self, halcomp, builder, useropts):
	self.builder = builder
        fb = builder.get_object('filechooserbutton1')
	filt = gtk.FileFilter()
	filt.add_pattern('*.bmp')
	filt.set_name('Bitmaps')
	fb.add_filter(filt)

def get_handlers(halcomp,builder,useropts):
        return [MyCallbacks (halcomp,builder,useropts)]