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pythongtkpygtkglade

Python/Glade/PyGTK - Not detecting handler correctly


I've been attempting to debug this all morning but can't seem to find the solution. I have a simple Glade/PyGTK script with three check boxes and a submit button. I've been trying to make sure I have a proper handler setup for gtk.main_quit with Glade GTKObject's Destroy Signal, but even after setting up correctly in Glade, my Python script doesn't detect the handler, hangs the application, and returns this error.

E:\Projects\DED\test.py:34: RuntimeWarning: missing handler 'on_MainWindow_destroy'
  self.builder.connect_signals(self)

I've tried changing the the handlers name, and even completely restarting the script from scratch to see where I went wrong. I can't seem to find it. Any help is appreciated! Thanks in advance.

Python Script:

import sys
try:
    import pygtk
    pygtk.require("2.0")
except:
    pass
try:
    import gtk
    import gtk.glade
except:
    sys.exit(1)


class GladeTest:

    def __init__(self):

        #Set the Glade file
        filename = "gui.glade"
        self.builder = gtk.Builder()
        self.builder.add_from_file(filename)
        self.builder.connect_signals(self)

        #Create our dictionay and connect it
        dic = { "btnSubmit_clicked" : self.btnSubmit_clicked,
        "on_MainWindow_destroy" : self.Destroy }

    def btnSubmit_clicked(self, widget):
        chkbt_chrome = self.builder.get_object("chkboxDropbox")
        print "ACTIVE--",chkbt_chrome.get_active()


    def Destroy(self, obj):
        gtk.main_quit() #make the program quit



if __name__ == "__main__":
    GladeTest()
    gtk.main()

print "All Done"

Glade File (gui.glade):

<?xml version="1.0" encoding="UTF-8"?>
<interface>
  <requires lib="gtk+" version="2.24"/>
  <!-- interface-naming-policy project-wide -->
  <object class="GtkWindow" id="MainWindow">
    <property name="visible">True</property>
    <property name="can_focus">False</property>
    <property name="title" translatable="yes">MainWindow</property>
    <property name="resizable">False</property>
    <property name="window_position">center</property>
    <signal name="destroy" handler="on_MainWindow_destroy" swapped="no"/>
    <child>
      <object class="GtkVBox" id="vbox1">
        <property name="visible">True</property>
        <property name="can_focus">False</property>
        <child>
          <object class="GtkLabel" id="label1">
            <property name="visible">True</property>
            <property name="can_focus">False</property>
            <property name="label" translatable="yes">Downloader</property>
            <attributes>
              <attribute name="style" value="normal"/>
              <attribute name="size" value="300"/>
            </attributes>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">0</property>
          </packing>
        </child>
        <child>
          <object class="GtkCheckButton" id="chkboxDropbox">
            <property name="label" translatable="yes">Dropbox</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">False</property>
            <property name="use_action_appearance">False</property>
            <property name="draw_indicator">True</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">1</property>
          </packing>
        </child>
        <child>
          <object class="GtkCheckButton" id="chkboxPython">
            <property name="label" translatable="yes">Python</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">False</property>
            <property name="use_action_appearance">False</property>
            <property name="draw_indicator">True</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">2</property>
          </packing>
        </child>
        <child>
          <object class="GtkCheckButton" id="chkboxChrome">
            <property name="label" translatable="yes">Google Chrome</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">False</property>
            <property name="use_action_appearance">False</property>
            <property name="draw_indicator">True</property>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">3</property>
          </packing>
        </child>
        <child>
          <object class="GtkButton" id="btnSubmit">
            <property name="label" translatable="yes">Download/Run</property>
            <property name="visible">True</property>
            <property name="can_focus">True</property>
            <property name="receives_default">True</property>
            <property name="use_action_appearance">False</property>
            <signal name="clicked" handler="btnSubmit_clicked" swapped="no"/>
          </object>
          <packing>
            <property name="expand">False</property>
            <property name="fill">True</property>
            <property name="position">4</property>
          </packing>
        </child>
      </object>
    </child>
  </object>
</interface>

Solution

  • I don't really understand what you're doing with your signal dictionary. You say #Create our dictionary and connect it, but you never seem to 'connect' it.

    If you just change them name self.Destroy to self.on_MainWindow_destroy it works fine for me.

    The builder.connect_signals method looks for signals in the glade file and matches them functions of the same name in your script. I don't know of any way to do this with a dictionary, but if there is, you don't seem to have implemented it.