[Interest] QtSVG deprecated

Tue Jan 10 00:25:53 CET 2012

Qt sold the COMMERCIAL licensing to digia… 

From: Jason H [mailto:scorp1us at yahoo.com] 
Sent: Monday, January 09, 2012 3:09 PM
To: Scott Aron Bloom; interest at qt-project.org
Subject: Re: [Interest] QtSVG deprecated

I hear Samsung might want their own OS... :-)

I thought "Qt" has handed over to Digia, but is still being worked on by the trolls. I'm confused.  If we're under open governance, who are they to say what goes?

________________________________

From: Scott Aron Bloom <Scott.Bloom at onshorecs.com>
To: interest at qt-project.org 
Sent: Monday, January 9, 2012 6:02 PM
Subject: Re: [Interest] QtSVG deprecated

WRT QDom, I agree… as to the pending MS acquisition, I think we are all a bit concerned on that rumor… and there is no point in speculating unless we plan on coming up with the cash to buy the Qt line from Nokia, or hope the Qt open source KDE system kicks in J

From: Jason H [mailto:scorp1us at yahoo.com] 
Sent: Monday, January 09, 2012 2:52 PM
To: Scott Aron Bloom; interest at qt-project.org
Subject: Re: [Interest] QtSVG deprecated

Then open governance needs to step in and issue assurances to all of us that things won't change. 

With Nokia about to be bought by Microsoft (rumors, but I see it as inevitable) I don't think trolls have a future working on anything not Microsoft anyway. If bought I'd expect Qt5 to be canceled unless the community delivers it.

QDom is great for reasonably-sized documents, which is 98% of XML documents. 

________________________________

From: Scott Aron Bloom <Scott.Bloom at onshorecs.com>
To: interest at qt-project.org 
Sent: Monday, January 9, 2012 5:38 PM
Subject: Re: [Interest] QtSVG deprecated

Lets not go down this path … AGAIN… I still use QDom when necessary… It comes up every 4-6 months on the list..

From a Qt POV, QDom has been deprecated, and the stream classes are the future..

Do they support all the functionality today? No…   Can they be used, or built upon to give that functionality.. Yes… for some.. no for others..

I can tell you, that the QDom fails so miserably for large XML parses, that using it as  QString is just a horrible idea to me…  However, I could see a wanting to do so.

And I agree, I like having the “complete” XML data represented in memory…  but there are major limitations to that…

Scott

From: Jason H [mailto:scorp1us at yahoo.com] 
Sent: Monday, January 09, 2012 2:34 PM
To: Scott Aron Bloom; interest at qt-project.org
Subject: Re: [Interest] QtSVG deprecated

The stream classes are *NOT* a replacement.

How do you change a value? Stream a document out, change one value, read it back in? Or keep it as a QString and parse around the XML yourself? 

That's ridiculous.

________________________________

From: Scott Aron Bloom <Scott.Bloom at onshorecs.com>
To: interest at qt-project.org 
Sent: Monday, January 9, 2012 5:29 PM
Subject: Re: [Interest] QtSVG deprecated

That’s the point.  

Thiago, assure me, QtDom is NOT going anywhere.. However, its depreciated and not supported.  While I understand your concern, and I have it as well..  Depricated in Qt world, is not as drastic as other frameworks... Sometimes...

Which is WHY they need another status, and Thiago agreed. However, that doesn’t mean it exists yet.

For QDom, the QXmlStream classes are the replacement...

Scott

-----Original Message-----
From: interest-bounces+scott.bloom=onshorecs.com at qt-project.org [mailto:interest-bounces+scott.bloom=onshorecs.com at qt-project.org] On Behalf Of Martin Holmes
Sent: Monday, January 09, 2012 2:22 PM
To: interest at qt-project.org
Subject: Re: [Interest] QtSVG deprecated

I'm glad to hear this, because I also use QtDom, and can't imagine processing XML documents without it. But the status of Deprecated definitely means:

"Module or code will be eventually removed (Qt source and binary compatibility guidelines apply)"

and binary compatibility can be broken when we move to Qt5, so it does look as though both SVG and DOM could be gone by the end of the year. 
That's scary, and seems silly to me.

What are the "'other' classes that are better used" for rendering SVG toolbutton images, or modelling an XML document?

Cheers,
Martin

On 12-01-09 02:16 PM, Scott Aron Bloom wrote:
> This came up at DevDays…
>
> There needs to be a status of “No maintained because we consider it 
> complete”
>
> Meaning, the code is stable, known bugs are fixed, and new 
> enhancements will not be added as “other” classes are better used.
>
> However, the code will NOT be removed from a new version. Another 
> example is the QDom code base.
>
> Scott
>
> *From:*interest-bounces+scott.bloom=onshorecs.com at qt-project.org
> [mailto:interest-bounces+scott.bloom=onshorecs.com at qt-project.org] *On 
> Behalf Of *Jason H
> *Sent:* Monday, January 09, 2012 2:14 PM
> *To:* Chris Meyer; mholmes at uvic.ca
> *Cc:* interest at qt-project.org
> *Subject:* Re: [Interest] QtSVG deprecated
>
> I don't think it's going away, it's just not being maintained.
>
> It's good for what it does, but many of the desired enhancements would 
> result in the module blowing up in run-time size. The module exists as 
> a good trade-off. And this I think is why it is deprecated. If it were 
> maintained it wouldn't be good for the little stuff anymore. I see 
> many requested changes wanting to DOM-ify it, which would definitely 
> result in bloat (QtDOM is also deprecated, btw)
>
> *From:*Chris Meyer <cmeyer1969+qt at gmail.com 
> <mailto:cmeyer1969+qt at gmail.com>>
> *To:* mholmes at uvic.ca <mailto:mholmes at uvic.ca>
> *Cc:* "interest at qt-project.org <mailto:interest at qt-project.org>"
> <interest at qt-project.org <mailto:interest at qt-project.org>>
> *Sent:* Monday, January 9, 2012 5:01 PM
> *Subject:* Re: [Interest] QtSVG deprecated
>
> Recently I've had my apps rejected on the Mac app store for "using a 
> custom webkit" (QtWebKit). The main use was to render SVG into 
> QImages.
>
> Going forward, I'm planning on using the QtSvg module. Currently, it 
> partially supports SVG Tiny; but I'm hoping to develop any missing 
> features as needed.
>
> I am not in a position to volunteer to be maintainer right now, but 
> I'm interested in contributing code, doing testing, paying money in 
> the form of feature bounties, and providing guidance where possible.
>
> Other than the issue of a maintainer, is there any other reason QtSvg 
> is deprecated? I think it's important to have this functionality 
> independent of webkit.
>
> On Mon, Jan 9, 2012 at 1:29 PM, Martin Holmes <mholmes at uvic.ca 
> <mailto:mholmes at uvic.ca>> wrote:
>>  I notice here:
>>
>>  
>> <http://labs.qt.nokia.com/2011/05/12/qt-modules-maturity-level-the-li <http://labs.qt.nokia.com/2011/05/12/qt-modules-maturity-level-the-li%0A> 
>> st/>
>>
>>  that QtSvg is now deprecated:
>>
>>  [quote]
>>  QtSvg
>>  Overall module state: Deprecated
>>  New maintainer required
>>  Reasoning: SVG Full (as opposed to SVG Tiny) functionality available 
>> in  QtWebKit, which should be used instead; we welcome research for a  
>> replacement for the SVG-generating code.
>>  [/quote]
>>
>>  I use QtSvg for toolbar icons and similar application-level 
>> graphics, to  provide easy scalability. Will QImage still support SVG 
>> images after  QtSvg is gone? I can't imagine how I could use WebKit 
>> for this  functionality.
>>
>>  Cheers,
>>  Martin
>>
>>
>>  --
>>  Martin Holmes
>>  University of Victoria Humanities Computing and Media Centre  
>> (mholmes at uvic.ca <mailto:mholmes at uvic.ca>)  
>> _______________________________________________
>>  Interest mailing list
>>  Interest at qt-project.org <mailto:Interest at qt-project.org>  
>> http://lists.qt-project.org/mailman/listinfo/interest <http://lists.qt-project.org/mailman/listinfo/interest%0A> 
> _______________________________________________
> Interest mailing list
> Interest at qt-project.org <mailto:Interest at qt-project.org> 
> http://lists.qt-project.org/mailman/listinfo/interest <http://lists.qt-project.org/mailman/listinfo/interest%0A> 
>

--
Martin Holmes
University of Victoria Humanities Computing and Media Centre
(mholmes at uvic.ca)
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