在調用set_value
之前,您可以禁用給定微調器的信號處理程序。這確保了信號僅響應於鼠標和鍵盤事件而不是程序改變而被觸發。這裏有一個簡單的例子:
import pygtk, gtk
win = gtk.Window(gtk.WINDOW_TOPLEVEL)
win.connect('destroy', lambda w: gtk.main_quit())
def _add_spinner():
adj = gtk.Adjustment(0.0, -100.0, 100.0, 1.0, 2.0, 0.0)
spin = gtk.SpinButton(adj, 0, 1)
spin.set_wrap(True)
hbox.pack_start(spin, True, True, 10)
return spin
vbox = gtk.VBox(True, 10)
hbox = gtk.HBox(True, 10)
vbox.pack_start(hbox, True, True, 10)
spin1 = _add_spinner()
spin2 = _add_spinner()
win.add(vbox)
def set_spin(src, dst):
# ensure that calling `set_value` does not fire events
hid = handlers.get(dst)
dst.handler_block(hid)
dst.set_value(src.get_value() + 1.5)
dst.handler_unblock(hid)
# when 'spinN' is changed, call 'set_spin'
hid1 = spin1.connect('value-changed', set_spin, spin2)
hid2 = spin2.connect('value-changed', set_spin, spin1)
handlers = {spin1: hid1, spin2: hid2}
win.show_all()
gtk.main()
謝謝;工作! – 2011-05-24 02:51:35