[Clam-devel] Re: faust status

Natanael Olaiz nolaiz at gmail.com
Sat Jul 12 02:35:56 PDT 2008

I can't connect to iua.upf.edu, so here I send a patch of the changes.

A question: now I'm saving/restoring the option as a setting, but the 
variable is still in the canvas... how can I get it from 
ClamNetworkCanvas if I put it on MainWindow?

El 07/11/2008 08:01 AM, David García Garzón escribió:
> I think is ok to put it in MainWindow so that you can save it in QSettings.
> About the menus options i will handle them all in the .ui file instead of in 
> code, just enabling them if USE_LADSPA.
> Try to avoid macros to remove parts of code unless you are debugging. For 
> example the SVG_WIDGET macro has no sense at all now it is stable and that we 
> have an option.
> Restrict the on_... method names to the ones that are implicitly connected 
> slots which follow qt naming conventions to implicitly connect slots. For 
> example onLaunchBrowser would be launchBrowser.
> In general the conventions for slots and signals
> Signals: somethingHappened()   (using past)
> Slots: doThatThink   (imperative, just like a regular method)
> so that when you connect you can read:
> When emmiter somethingHappened receiver doThatThing
> Then the explicitly connected slots are named
> on_uiObjectName_signalName()
> I use them mostly with actions defined on the ui to avoid having to do:
> connect(_ui->uiActionName, SIGNAL(triggered()), this, SLOT(doThat()))
> Also I saw you are emiting slots or regular methods. Don't emit methods not 
> being signals, just call them. If you call an slot within the class just call 
> it like a regular function. Just emit signals, not slots neither regular 
> methods.
> In this case, I don't know if you did so, but anyway is a good advice to 
> anyone new (or not that new) to qt: avoid using the signal slot mechanism 
> when the signal is not directly an user event but code you write, and you 
> know who is the receiver object and the receiver method. New people to Qt get 
> entusiastic with sigslot mechanism which is powerful but has less compile 
> time checks, is hard to trace and adds signal resolution overhead. 
> Annotator's vmqt is a good example on over use and it is a hell to understand 
> it ;-)
> On Divendres 11 Juliol 2008, Natanael Olaiz wrote:
>> The same on a submenu:
>> screenshot: NetworkEditor Faust menu actions
>> El 07/11/2008 04:15 AM, Natanael Olaiz escribió:
>>> The same, but now the two Faust related menu actions are created from
>>> MainWindow.hxx, and appears only "ifdef USE_LADSPA".
>>> BTW, I just realize that the embedded svg option is not exclusive to
>>> Faust plugins. Anyway, by default it starts without it, so if you like
>>> it, I'll commit it.
>>> And a question. What is the best place for the slot
>>> onOptionEmbedSvgDiagramsChanged()? MainWindow, as in the patch (where
>>> the signal come), or directly on ClamNetworkCanvas (in _canvas)?
>>> El 07/11/2008 01:48 AM, Natanael Olaiz escribió:
>>>> El 07/09/2008 06:00 PM, Pau Arumí Albó escribió:
>>>>> El dc 09 de 07 de 2008 a les 22:16 +0200, en/na David García Garzón va
>>>>> escriure:
>>>>>>> - Hey, your screenshots have Sinks and Sources with svg diagrams. But
>>>>>>> mines no. I want them! :-)
>>>>>> I don't like them too much but maybe another icon could look better.
>>>>>> I think the faust svg feature although cool and awesome, is not
>>>>>> convenient for usability because they add too much elements on the
>>>>>> screen, which is something we want to solve with the subnetworks
>>>>>> feature. Making the diagram appear on user query, maybe in a side
>>>>>> view could be better. We can now use QWebKit to have linked svg's!
>>>>> I tend to find those diagrams useful to understand the network --which
>>>>> tells me this decision might depend on the user's taste.
>>>>> I'd like to avoid doing too much work now (like having a side view),
>>>>> and
>>>>> first gain experience using faust and specially have feedback of faust
>>>>> users.
>>>>> Anyway, I agree that we that faust-svg diagrams could be somehow
>>>>> optional: a NE bool setting "show faust svg diagrams" could
>>>>> enable/disable the svg embedding *when inserting a new processing*,
>>>>> which I think it's straightforward to do. David, Natanael: do you buy
>>>>> it?
>>>> In this patch I added the bool option to ClamNetworkCanvas, and is
>>>> managed from the menu of main window. Not the best option, because it
>>>> will be showed on non-linux environments, but I don't know where to
>>>> ask the user for the option inserting the .svg...
>>>> Plus I renamed some action names on MainWindow (r11583), with
>>>> unmatched ui signals.
>>>>> P

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