[Glade-users] Help to port sound-juicer to GtkBuilder

[Tristan Van Berkom]

2010/1/20 Tadej Borovšak <tadeboro at gmail.com>:
> Hello.
>
> I looked at the code and noticed that there is no such things as
> GMAudioProfileChoose widget defined in gnome-media package. It's
> simply a combo box with some predefined things.
>
>> <widget class="Custom" id="audio_profile">
>>  <property name="visible">True</property>
>>  <property name="can_focus">True</property>
>>  <property name="creation_function">gm_audio_profile_choose_new</property>
>>  <signal name="changed" handler="prefs_profile_changed"/>
>> </widget>
>>
>> <object class="GMAudioProfileEdit" id="audio_profile">
>>  <property name="visible">True</property>
>>  <property name="can_focus">True</property>
>>  <signal name="changed" handler="prefs_profile_changed"/>
>> </object>
>
> Those two snippets are not equal. First snippet creates combo box
> while second snippet creates dialog.
>
> I'm not sure how to fix this mess. One way would be to define
> GMAudioProfileChoose custom widget inside gnome-media package, add it
> to Glade catalog file and then use it as any custom widget.
>
> If this cannot be done, one can still manually insert combo box into
> the horizontal box. This is ugly, but it may be reasonable to do if
> the urge to remove libglade is strong enough.

Ah, sorry because of the approach he was using I assumed it was
an actual widget.

There could be a couple approaches, if there is alot of business
logic around the dialog that was being set up in the create_custom()
function then it's probably best to create a type for it IMO.

If its just a question of creating a widget hierarchy with a similar
look'n'feel to be used in several places in the UI, you could use
a separate GtkBuilder file for it and include it at several places
in the UI (by building/parenting that builder file at multiple places).

Some might prefer just using an extra glade file if for instance
they are writing C code and dislike copy/pasting all the required
boiler-plate code to create a type.

Ofcourse you can also combine the above two, leaving you
with a GType of a class that creates its hierarchy using GtkBuilder
internally at _init() time, which is also a widget type and as such
can be placed multiple times anywhere in the project.

Cheers,
         -Tristan