Re: bonobo question - what parts should be bonobo?

On Sex, 2003-02-28 at 12:11, Ronald Bultje wrote:
> Hey,
> 
> I'm doing a GStreamer-based project which should one day become a great
> video recorder app. I want to use layering here, so some parts are
> gstreamer plugins, one part should become a bonobo element as well. Now
> my question is about what people normally make bonobo components.
> Basically, the app can be really small, see
> http://www.gstreamer.net/apps/gst-rec/gst-rec-new.png for a screenshot.
> Possibly bonobo'izeable widgets around here: a tv widget (it's gray
> here, but that's because my laptop doesn't have a TV card), a
> preferences screen (where things like capture format, audio codec, video
> codec, audio and video source settings are located) and a control screen
> (where audio volume, video image (brightness etc.) and video channel can
> be changed).

  As Michael said in this list some time ago, widget-level embedding
with bonobo is not recommended.  For one thing, mnemonic activation of
bonobo widgets doesn't work, as I discovered some time ago.

> 
> The question is, what parts here would normally become bonobo
> components? I could make the preferences screen, control screen and TV
> widget a bonobo component, but is that a wise idea? I could also make
> the TV widget a bonobo component and make everything else properties of
> this component (so that the bonobo client needs to implement all GUI
> stuff for this), or make the widgets inside the control screen bonobo
> components on themselves... What do normal people do here? How far
> should I go here?

  Some people wouldn't call me 'normal', :) but a good a example to look
at would be eog.
  Looking at the screenshot, I would say that everything except the menu
bar, tool bar and status bar should be a single bonobo control.  You
would also export the toolbar items and menu layout in a bonobo ui xml
file (read by the component, not the shell). The preferences dialog too
would be in the component factory, invoked by some menu item.

> 
> (The idea is that other GStreamer applications, like Wim's gnonlin NLE,
> can call gst-rec's video-recording function via bonobo, and maybe
> there's other weird people out there that would want to use gst-rec for
> some weird reason).
> 
> Also, related to this, is it normal for applications that call a
> bonobo-component to keep their own configuration of this component, or
> should the configuration be inside the bonobo component? I.e., should I
> use GConf in the component or in the application part?

  I don't have any strong opinion in this matter, but I would say that
using GConf directly in the component is fine.

> 
> Thanks for any help,
> 
> Ronald
> 
> [please CC me, I'm not subscribed]
-- 
Gustavo João Alves Marques Carneiro
<[email protected]> <[email protected]>