[Glade-users] "Dead" widgets like the ones created in Glade

[tristan.van.berkom at gmail.com (Tristan Van Berkom)]

Fabricio Rocha wrote:

> Hi all,
>
>       This is a question which might be intended to the Glade-developers 
> list, but it might sound somewhat silly there and will not contribute to 
> the development of Glade itself.
>
>       Does anyone know how exactly does work the placement of widgets in a 
> form, like Glade does? I tried to read the source code, but could not 
> guess it. For example, how to get those little squares and a border 
> around a widget to allow resizing them with the mouse? How can someone 
> get this effect of dragging a widget in the form, or having a label text 
> altered "live" while writing this text in a GtkEntry in other form?
>
>       Please understand that I am not trying to know implementation details 
> for each of those features -- "use GtkDoThat here, loop through that, 
> etc" --, even though details would be surely greatly appreciated. It is 
> more something like what approach to use in GTK if I wanted to create 
> something like a form designer, in a few lines. Is it simply a question 
> of manipulating the signals and handlers, or does it require the 
> creation of new components and direct Gdk use? Glade, just like most of 
> the software available, is not well documentated about this.
>
>  
This should give you an idea of how we do that in glade3:
    http://gnome.org/~tvb/glade_api/GladeFixed.html

The implementation is specific to the container, container packing 
properties
always decide how a child is placed in its parent container.

Cheers,
                                          -Tristan