Il nome della finestra di TopLevel e' stato definito come MainWindow (nome che servira' per la referenziazione)
In Properties/Signal si puo' definire l'evento che si vuole catturare
Il salvataggio dell'interfaccia puo' avvenire in due formati (GtkBuilder e Libglade). Nell'esempio riportato di seguito e' stato scelto LibGlade
Il programma in Python...il codice e' abbastanza autoesplicativo
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import sys
try:
import pygtk
pygtk.require("2.0")
except:
pass
try:
import gtk
import gtk.glade
except:
sys.exit(1)
class ProgressBar:
def __init__(self):
self.gladefile = "progressbar.glade"
self.wTree = gtk.glade.XML(self.gladefile)
self.window = self.wTree.get_widget("MainWindow")
self.window.show()
if (self.window):
self.window.connect("destroy", gtk.main_quit)
dic = { "on_hscale1_value_changed" : self.cambia_valore}
self.wTree.signal_autoconnect(dic)
def cambia_valore(self, widget):
a = self.wTree.get_widget("hscale1").get_value()
self.wTree.get_widget("label1").set_text(str(int(a)))
self.wTree.get_widget("progressbar1").set_fraction(a/100)
if __name__ == "__main__":
hwg = ProgressBar()
gtk.main()
---------------------------------------------------
progressbar.glade
---------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<glade-interface>
<!-- interface-requires gtk+ 2.24 -->
<!-- interface-naming-policy project-wide -->
<widget class="GtkWindow" id="MainWindow">
<property name="can_focus">False</property>
<property name="title" translatable="yes">Progress Bar</property>
<property name="default_width">250</property>
<property name="default_height">80</property>
<child>
<widget class="GtkVBox" id="vbox1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<child>
<widget class="GtkHScale" id="hscale1">
<property name="visible">True</property>
<property name="can_focus">True</property>
<property name="adjustment">0 0 110 1 1 10</property>
<property name="lower_stepper_sensitivity">off</property>
<property name="upper_stepper_sensitivity">off</property>
<property name="restrict_to_fill_level">False</property>
<property name="round_digits">1</property>
<property name="digits">0</property>
<property name="draw_value">False</property>
<signal name="change_value" handler="on_hscale1_change_value" swapped="no"/>
<signal name="value_changed" handler="on_hscale1_value_changed" swapped="no"/>
</widget>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">0</property>
</packing>
</child>
<child>
<widget class="GtkLabel" id="label1">
<property name="visible">True</property>
<property name="can_focus">False</property>
<property name="label" translatable="yes">0</property>
</widget>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">1</property>
</packing>
</child>
<child>
<widget class="GtkProgressBar" id="progressbar1">
<property name="visible">True</property>
<property name="can_focus">False</property>
</widget>
<packing>
<property name="expand">True</property>
<property name="fill">True</property>
<property name="position">2</property>
</packing>
</child>
</widget>
</child>
</widget>
</glade-interface>
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