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List:       gtk-app-devel
Subject:    Re: Can put a GtkLayout in a GtkListBox
From:       Cédric Bellegarde <gnumdk () gmail ! com>
Date:       2014-11-05 17:00:16
Message-ID: 1415206816.1506.0 () smtp ! gmail ! com
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Ok, just need to add an eventbox...

regards,
--
Cédric

Le mer. 5 nov. 2014 Ã  14:41, Cedric Bellegarde <gnumdk@gmail.com> a 
écrit :
> Ok, so here another question...
> 
> I want to implement drag and drop in a gtklistbox.
> 
> If i add buttons to gtklistbox, set button as drag source, it works.
> 
> If i add complex widgets to gtklistbox, as my container (gtkgrid) 
> doesn't have a window, it fails to be a drag source.
> 
> That's why i'm looking for a container with a window (and tried with 
> GtkLayout)
> 
> https://wiki.gnome.org/GnomeLove/DragNDropTutorial
> "Note that these GTK+ widgets must have an associated X Window, check 
> using GTK_WIDGET_NO_WINDOW(widget))."
> 
> any idea?
> 
> regards
> --
> Cédric Bellegarde
> 
> Le mer. 5 nov. 2014 Ã  13:28, Tristan Van Berkom 
> <tristan@upstairslabs.com> a écrit :
>> On Wed, 2014-11-05 at 13:08 +0100, Cedric Bellegarde wrote:
>>>  Hello, in this code, adding a layout to a GtkListBox do not show 
>>> layout
>>>  content :(
>>> 
>>>  What am i missing?
>>> 
>> 
>> A GtkLayout is like a GtkViewport which you can place widgets at
>> specific locations and draw on etc, it has the special property
>> that it does not require space (typically it's used in a scrolled
>> window).
>> 
>> The reason you would not see the label would be that the layout
>> does not have any specific size request and as such does not get
>> allocated any space, so anything packed inside it would be clipped
>> away from view.
>> 
>> Cheers,
>>     -Tristan
>> 
>>>  regards,
>>> 
>>>  from gi.repository import Gtk
>>> 
>>>  class mywindow(Gtk.Window):
>>> 
>>>      def __init__(self):
>>>          Gtk.Window.__init__(self, title="Hello")
>>>          box = Gtk.ListBox()
>>>          label = Gtk.Label("Hello")
>>>          label2 = Gtk.Label("Hello2")
>>>          layout = Gtk.Layout()
>>>          layout.put(label, 0, 0)
>>>          box.add(layout)
>>>          box.add(label2)
>>>          self.add(box)
>>> 
>>>  win = mywindow()
>>>  win.connect("delete-event", Gtk.main_quit)
>>>  win.show_all()
>>>  win.resize(300, 300)
>>>  Gtk.main()
>>> 
>>>  --
>>>  Cédric Bellegarde
>>>  _______________________________________________
>>>  gtk-app-devel-list mailing list
>>>  gtk-app-devel-list@gnome.org
>>>  https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
>> 
>> 
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