[Kindle Touch] Qt4: How To Use?

[geekmaster]

Originally Posted by knc1

Isn't post 14 a bit off topic here?

I can't see what your browser displays, but mine shows the topic title in the title bar of the window.

The OP changed the topic to alternative GUIs (such as Java -- see post #7). Only a site mod can change the thread title you see in your title bar. I was just providing alternatives (IUP and immediate mode GUI), and pointing out that the choice of GUI depends on the application. Because immediate mode GUI is more of a niche-market thing (Indie games), I gave a description of it and some links for more info. Event driven or real-time? Video and animation fall more into the real-time category, so immediate mode GUI may be a better choice there (much lower latency). Turn-based games or desktop apps? Then I would go with IUP so I can write in C.

[knc1]

Originally Posted by geekmaster

The OP already suggested alternative GUIs (such as Java -- see post #7). I was just providing alternatives (IUP and immediate mode GUI), and pointing out that the choice of GUI depends on the application. Event driven or real-time? Video and animation fall more into the real-time category, so immediate mode GUI may be a better choice there (much lower latency).

Sorry that I couldn't read that into the post without the context.

[knc1]

Originally Posted by wl.

i saw the qt4 libs in some apps for KT, where to find info about compiling qt4 for KT, compiling qt4 apps, maybe on-device debuging?
sorry, i am newbie in kindle development, and no useful links in google. Point me please in right direction

Originally Posted by geekmaster

Here is a "Qt for kindle" port:
http://code.google.com/p/qindle/
And the on-site thread (this comment added by knc1):
https://www.mobileread.com/forums/showthread.php?t=94483

Of course, it depends on DX keyboard, so still needs touchscreen support added. Java would be a lot easier I think. Personally, I prefer low-level code (C and direct access to device driver ioctl() and /proc interfaces).

I think GM hit on the best answer to your question, with a couple of notes:

That is a port of qt-embedded (frame buffer interface) rather than qt (x11 interface).
It is based on qt-embedded 4.6.
It is for the Kindle DX and would need coding to make it work on the KT as GM points out.
GM also includes a post describing some alternatives to using qt (or java) in the thread above.

Other posts in this thread contain links to "HowTo build" information.

The project GM linked to is (almost) dead, the author sold his Kindle hardware and is looking for other developers to help him. This might be a great time to get in touch with that author.

[geekmaster]

Here is an OPEN SOURCE program with qtKindle: K3Chess
https://www.mobileread.com/forums/sho...d.php?t=152815

It uses qtKindle, and it has source code available. Although for K3, it could be adapted for Touch by adding touchscreen code (see geekmaster touchpaint and sigcap scripts, and recent JoppyFur touchscreen code).

[knc1]

Originally Posted by geekmaster

Here is an OPEN SOURCE program with qtKindle: K3Chess
https://www.mobileread.com/forums/sho...d.php?t=152815

That one has the GPL-V3 virus included.
- - - -
Note: My posts mentioning the GPL license (which is known as a "viral" type of license) are not intended to be pro- GPL or anti- GPL posts.

Only intended to be informational as the OSI license used might be important to the reader of these posts.

Edit: "Viral" licenses have their place, readers probably noticed that the CC license I suggested to GM is also "viral" unless you ask his permission to not be bound by that condition of the license. Click his signature to see a better description.

[geekmaster]

Originally Posted by knc1

That one has the GPL-V3 virus included.
- - - -
Note: My posts mentioning the GPL license (which is known as a "viral" type of license) are not intended to be pro- GPL or anti- GPL posts.

Only intended to be informational as the OSI license used might be important to the reader of these posts.

Edit: "Viral" licenses have their place, readers probably noticed that the CC license I suggested to GM is also "viral" unless you ask his permission to not be bound by that condition of the license. Click his signature to see a better description.

I am going to have to look closer at stuff before I recommend it, although I do use LGPL even in my commercial apps (I just have to be careful to dynamically load it instead of static linking). I want to be able to use all of my code base for commercial apps, so I have to be careful to avoid GPL, and keep the LGPL stuff as loadable libraries.

And thanks for the public domain VT100 state machine. I plan to use the Ruby-generated state tables from it in my code.

EDIT: I wish GPL wasn't so ANTI-BUSINESS. If everybody worked for Universities, we would not have any products to buy (or food to eat). What are those guys smoking, anyway? You did see the embedded video of Richard Stallman eating stuff he picked off of his bare foot during a lecture while on camera, didn't you? Strange stuff there (eating foot fungus in public, and GPL too).

[knc1]

Written as one member of the 20th century to another member of the 20th century...

It isn't the "product" that is important, it is the "service" associated with the "product".

Sure, the software is "free" (as in: without purchase price), but the support contract certainly isn't: http://investors.redhat.com/released...leaseID=660156

I wouldn't call something that generates revenue of $100 million/month as being "anti-business".
It is just somebody changed the business model behind our backs.

[geekmaster]

Originally Posted by knc1

I wouldn't call something that generates revenue of $100 million/month as being "anti-business".
It is just somebody changed the business model behind our backs.

It feels more like somebody switched planets beneath my feet. I remember back in the days when you made stuff and you sold it (and gasoline was $0.35USD per gallon, candy bars were $0.05USD (or 6 for $0.25USD), and gold was $35USD per ounce). All this "funny money service-based stuff" just seems so "virtual" to me. If we end up with everybody "servicing" everybody else, who will be left to MAKE stuff?

It will take me awhile to find a use for this GPL that I can use, unless I change my business model to servicing people instead of selling stuff to them.

[knc1]

Make things? Like in, physical items of commerce? What a novel idea.
I think they still do that in China.

But here that would take people who could run the machines, but....
http://www.huffingtonpost.com/2010/1..._n_793185.html

Or at least people who could read the directions on the machines, but....
http://www.usatoday.com/news/educati...literacy_N.htm

Amazon's idea to make "electronic books" is not exactly a long term growth market. Not when 1 in 7 people can't read, and that ratio is getting worse.

[geekmaster]

Originally Posted by knc1

Or at least people who could read the directions on the machines, but....
http://www.usatoday.com/news/educati...literacy_N.htm

That second link explains why certain members of the comic book crowd get so offended when you use big words beyond their comprehension. They are accustomed to books with pictures, sprinkled with a few single-syllable words. Big words like research, discover, and invent have TWO syllables, and worse, they are often used in such taboo subjects as science and mathematics... (heaven forbid!).