I am trying to get the dimensions of an Image when the window is resized and
create a new image with the size of the new dimensions. Am I going about this
correctly? The program seems to freeze upon starting. I am thinking that when I
receive the 'size-allocate' signal and create a new image I am causing the
signal to be generated again and then I get into a horrible cycle of resizing.
Any help would be appreciated.
Thanks!
#!/usr/bin/env python
import gobject
import gtk
import Numeric
import PIL.Image
import StringIO
import sys
import gpsd
class Piper(gtk.Window):
def __init__(self):
super(Piper, self).__init__()
self.set_title("Piper")
self.set_size_request(500, 500)
self.set_position(gtk.WIN_POS_CENTER)
mb = gtk.MenuBar()
filemenu = gtk.Menu()
filem = gtk.MenuItem("_File")
filem.set_submenu(filemenu)
agr = gtk.AccelGroup()
self.add_accel_group(agr)
exit = gtk.ImageMenuItem(gtk.STOCK_QUIT, agr)
key, mod = gtk.accelerator_parse("Q")
exit.add_accelerator("activate", agr, key,
mod, gtk.ACCEL_VISIBLE)
exit.connect("activate", gtk.main_quit)
filemenu.append(exit)
mb.append(filem)
self.map = gtk.Image()
self.statusbar = gtk.Statusbar()
self.statusbar.push(1, "Ready")
vbox = gtk.VBox(False, 2)
vbox.pack_start(mb, False, False, 0)
vbox.pack_start(self.map, True, True, 0)
vbox.pack_start(self.statusbar, False, False, 0)
self.add(vbox)
self.map.connect("size-allocate", self.update_map)
self.connect("destroy", gtk.main_quit)
self.show_all()
def update_map(self, widget, rect):
print rect.x, rect.y, rect.width, rect.height
image = PIL.Image.new("RGB", (rect.width, rect.height), (255, 0, 0))
pixbuf = self.image_to_pixbuf(image)
self.map.set_from_pixbuf(pixbuf)
def image_to_pixbuf(self, image):
fd = StringIO.StringIO()
image.save(fd, "ppm")
contents = fd.getvalue()
fd.close()
loader = gtk.gdk.PixbufLoader("pnm")
loader.write(contents, len(contents))
pixbuf = loader.get_pixbuf()
loader.close()
return pixbuf
Piper()
gtk.main()
_________________________________________________________________
Hotmail: Free, trusted and rich email service.
http://clk.atdmt.com/GBL/go/171222984/direct/01/_______________________________________________
pygtk mailing list [email protected]
http://www.daa.com.au/mailman/listinfo/pygtk
Read the PyGTK FAQ: http://faq.pygtk.org/
