CODEWITHSUNDEEP
pythonpygtkgtk3
mariotomo
mariotomo

Reputation: 9738

where is `parent` in gtk3?

I'm sorry to place such a simple question, I'm moving from PyGTK to PyGI, and my program has several labels that are made sensitive to mouse click, by adding them in an EventBox; the structure is defined in glade files, and the callbacks are set in the Python code.

In PyGTK, we rely upon being able to find the EventBox by reading the parent property of the Label.

Now I have this simple Python code:

if True:
    import gi
    gi.require_version('Gtk', '3.0')
    from gi.repository import Gtk
else:
    import gtk as Gtk

class MyWindow(Gtk.Window):

    def __init__(self):
        super(MyWindow, self).__init__()

        self.eventbox = Gtk.EventBox()
        self.add(self.eventbox)
        self.label = Gtk.Label("click me")
        self.eventbox.add(self.label)
        print self.label.parent

win = MyWindow()
win.connect("destroy", Gtk.main_quit)
win.show_all()
Gtk.main()

which doesn't do anything, runs for PyGtk, but complains with PyGI, saying that 'Label' object has no attribute 'parent'.

This is not the only place where my code uses the parent field, so I need a generic solution.

A working link to pygi-convert.sh would provide material for study.

in case you wonder, the target software is a botanic database manager.

Upvotes: 1

Views: 1021

Answers (2)

José Fonte
José Fonte

Reputation: 4114

You must use the getter method from Gtk.Widget get_parent().

if True:
    import gi
    gi.require_version('Gtk', '3.0')
    from gi.repository import Gtk
else:
    import gtk as Gtk

class MyWindow(Gtk.Window):

    def __init__(self):
        super(MyWindow, self).__init__()

        self.eventbox = Gtk.EventBox()
        self.add(self.eventbox)
        self.label = Gtk.Label("click me")
        self.eventbox.add(self.label)
        print self.label.get_parent()

win = MyWindow()
win.connect("destroy", Gtk.main_quit)
win.show_all()
Gtk.main()

After execution:

<Gtk.EventBox object at 0x7f802a597910 (GtkEventBox at 0x55a88239a130)>

Upvotes: 1

Aran-Fey
Aran-Fey

Reputation: 43226

You're looking for the get_parent() method:

print(self.label.get_parent())

Upvotes: 1

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