def crop_image(self, action):
		dialog = gtk.Dialog(_("Crop Image"), self.window, gtk.DIALOG_MODAL, (gtk.STOCK_CANCEL, gtk.RESPONSE_REJECT))
		dialog.add_button(_("Crop"), gtk.RESPONSE_ACCEPT)
		image = gtk.DrawingArea()
		# Create a pixbuf that fits in a window of 400x400
		image_width = self.currimg_pixbuf_original.get_width()
		image_height = self.currimg_pixbuf_original.get_height()
		if image_width-400 > image_height-400:
			if image_width > 400:
				image_height = int(400/float(image_width)*image_height)
				image_width = 400
		else:
			if image_height > 400:
				image_width = int(400/float(image_height)*image_width)
				image_height = 400
		if self.currimg_pixbuf_original.get_has_alpha() == False:
			crop_pixbuf = self.currimg_pixbuf_original.scale_simple(image_width, image_height, self.zoom_quality)
		else:
			colormap = self.imageview.get_colormap()
			light_grey = colormap.alloc_color('#666666', True, True)
			dark_grey = colormap.alloc_color('#999999', True, True)
			crop_pixbuf = self.currimg_pixbuf_original.composite_color_simple(image_width, image_height, self.zoom_quality, 255, 8, light_grey.pixel, dark_grey.pixel)
		image.set_size_request(image_width, image_height)
		hbox = gtk.HBox()
		hbox.pack_start(gtk.Label(), expand=True)
		hbox.pack_start(image, expand=False)
		hbox.pack_start(gtk.Label(), expand=True)
		dialog.vbox.pack_start(hbox, False, False, 0)
		dialog.set_resizable(False)
		dialog.vbox.show_all()
		image.set_events(gtk.gdk.POINTER_MOTION_MASK | gtk.gdk.POINTER_MOTION_HINT_MASK | gtk.gdk.BUTTON_PRESS_MASK | gtk.gdk.BUTTON_MOTION_MASK | gtk.gdk.BUTTON_RELEASE_MASK)
		image.connect("expose-event", self.crop_image_expose_cb, crop_pixbuf, image_width, image_height)
		image.connect("motion_notify_event", self.crop_image_mouse_moved, image)
		image.connect("button_press_event", self.crop_image_button_press, image)
		image.connect("button_release_event", self.crop_image_button_release)
		image.realize()
		self.drawing_crop_rectangle = False
		self.crop_rectangle = None
		self.rect = None
		response = dialog.run()
		if response == gtk.RESPONSE_ACCEPT:
			dialog.destroy()
			if self.rect != None:
				# Convert the rectangle coordinates of the current image
				# to coordinates of pixbuf_original
				if self.rect[0] < 0:
					self.rect[2] = self.rect[2] + self.rect[0]
					self.rect[0] = 0
				if self.rect[1] < 0:
					self.rect[3] = self.rect[3] + self.rect[1]
					self.rect[1] = 0
				coords = [0,0,0,0]
				coords[0] = int(float(self.rect[0])/image_width*self.currimg_pixbuf_original.get_width())
				coords[1] = int(float(self.rect[1])/image_height*self.currimg_pixbuf_original.get_height())
				coords[2] = int(float(self.rect[2])/image_width*self.currimg_pixbuf_original.get_width())
				coords[3] = int(float(self.rect[3])/image_height*self.currimg_pixbuf_original.get_height())
				if coords[0] + coords[2] > self.currimg_pixbuf_original.get_width():
					coords[2] = self.currimg_pixbuf_original.get_width() - coords[0]
				if coords[1] + coords[3] > self.currimg_pixbuf_original.get_height():
					coords[3] = self.currimg_pixbuf_original.get_height() - coords[1]
				temp_pixbuf = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, self.currimg_pixbuf_original.get_has_alpha(), 8, coords[2], coords[3])
				self.currimg_pixbuf_original.copy_area(coords[0], coords[1], coords[2], coords[3], temp_pixbuf, 0, 0)
				self.currimg_pixbuf_original = temp_pixbuf
				del temp_pixbuf
				gc.collect()
				self.load_new_image(False, False, True, False, False)
				self.image_modified = True
		else:
			dialog.destroy()

	def crop_image_expose_cb(self, image, event, pixbuf, width, height):
		image.window.draw_pixbuf(None, pixbuf, 0, 0, 0, 0, width, height)

	def crop_image_mouse_moved(self, widget, event, image):
		x, y, state = event.window.get_pointer()
		if self.drawing_crop_rectangle == True:
			if self.crop_rectangle != None:
				gc = image.window.new_gc(function=gtk.gdk.INVERT)
				if self.rect != None:
					# Get rid of the previous drawn rectangle:
					image.window.draw_rectangle(gc, False, self.rect[0], self.rect[1], self.rect[2], self.rect[3])
				self.rect = [0, 0, 0, 0]
				if self.crop_rectangle[0] > x:
					self.rect[0] = x
					self.rect[2] = self.crop_rectangle[0]-x
				else:
					self.rect[0] = self.crop_rectangle[0]
					self.rect[2] = x-self.crop_rectangle[0]
				if self.crop_rectangle[1] > y:
					self.rect[1] = y
					self.rect[3] = self.crop_rectangle[1]-y
				else:
					self.rect[1] = self.crop_rectangle[1]
					self.rect[3] = y-self.crop_rectangle[1]
				image.window.draw_rectangle(gc, False, self.rect[0], self.rect[1], self.rect[2], self.rect[3])

	def crop_image_button_press(self, widget, event, image):
		x, y, state = event.window.get_pointer()
		if (state & gtk.gdk.BUTTON1_MASK):
			self.drawing_crop_rectangle = True
			self.crop_rectangle = [x, y]
			gc = image.window.new_gc(function=gtk.gdk.INVERT)
			if self.rect != None:
				# Get rid of the previous drawn rectangle:
				image.window.draw_rectangle(gc, False, self.rect[0], self.rect[1], self.rect[2], self.rect[3])
				self.rect = None

	def crop_image_button_release(self, widget, event):
		x, y, state = event.window.get_pointer()
		if not (state & gtk.gdk.BUTTON1_MASK):
			self.drawing_crop_rectangle = False