On 9/7/22 05:00, Thiago Macieira wrote:
On Tuesday, 6 September 2022 06:24:19 PDT Michael Jackson wrote:
My guess is that if you are NOT in the data processing realm the Qt
containers are probably just fine for your use cases.
I don't know why Andr? decided to ask about Qt containers, since they already
do support 64-bit sizes.

The discussion on the development mailing list is not about the low-level
containers, but about the GUI types.

Probably because the widget must contain the data in something, but that is just a guess.

What isn't a guess is your row numbers need to be BASE-26 for table widgets.


is going to chew up quite a bit of screen for a line number. (That's sixty Billion for those counting commas.)

Honestly, it is too late for Qt to find its way into corporate desktop applications. There are legacy applications like Wireshark


that will be maintained until someone ports them to CopperSpice, LVGL, Elementary, etc. Same with Geany and a few others. Given the licensing shenanigans, elimination of OpenSource LTS, and severely limited data capabilities, it will never again be the tool of choice for new corporate or embedded development. Even basic order entry systems must have the capability to reference a data warehouse so the customer can look up their past orders.

Despite offering boot2qt, all of the major SOM module makers have been steering customers away from that.

So, I guess the real question, before one gets to "capacity" is

what market hasn't Qt gotten itself thrown out of yet?

That will determine how much capacity your widgets and containers must have.

If you (being Qt) could ___directly__ access the full capabilities of Mumps and PICK BASIC databases you "could" become the tool of choice for medical records systems development. You would have to do it very quickly though. Almost every major hospital system is paying to keep Windows 7 alive so they can avoid a very expensive Epic/etc. software upgrade combined with a Windows 10/11 upgrade.


Most hospitals would love to be able to leave their existing Dell all-in-one systems in place, load Manjaro (or some other somewhat secure Linux) on them and load high quality medical records software that could use the existing database sans conversion. Despite what MS says publicly about 2023 being the end of the end, hospitals will be able to get another 2-5 years as will federal offices and they will all ride it out to the bitter end.

Licensing shenanigans got Qt tossed out of the embedded world and the phone market.

Toyota threw them out of the automotive world.


Even if Qt was absolutely free, draconian size limitations mean it cannot be used to access corporate data so cannot be used for corporate desktops.

What market is Qt actually targeting now? That determines what the capabilities need to be. Given the licensing, it will have to be an incredibly obscure niche with deep pockets. Nothing else will pay those fees.

Roland Hughes, President
Logikal Solutions


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