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Date: Tue, 2 Aug 2016 11:24:51 -0400
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On Tue, Aug 2, 2016 at 10:13 AM, John Griessen (john AT ecosensory DOT com)
[via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
> On 08/02/2016 07:22 AM, Gabriel Paubert (paubert AT iram DOT es) [via
> geda-user AT delorie DOT com] wrote:
>>>
>>> Why not QT4 or QT5?
>>
>> No C bindings for QT, unless I missed something. It's natively C++,
>> which is a big no-no for some people.


How about SDL? (Igor2 was talking it up to me a while ago)
https://www.libsdl.org/
"SDL is written in C, works natively with C++, and there are bindings
available for several other languages, including C# and Python. "

>> My personal feelings are quite different, I hated C++ until C++11
>> arrived. C++11 (and later) really is a different language altogether.
>
>
> So, the straight C GUI toolkits are limited to GTK+, XAW?
>
> Searching on "C bindings for QT" gives these interesting results:
>
>
> ============http://stackoverflow.com/questions/1728509/does-qt-have-a-c-interface=============
>
> To use Qt, you must have a C++ compiler. But it doesn't mean that your
> "application logic" can't be written in C, compiled with a C compiler and
> carefully linked to the C++ part (the GUI with Qt). This application logic
> can be generic, linkable into other executables (pure-C, mixed C/C++, etc.)
> It all depends on what you need.
>
> you may shape your program as set of libraries achieving your business logic
> and write them in C, then you can use a little C++ to bind what you wrote as
> library with a GUI using QT.
>
> This is a good approach also because later you can reuse your library and
> implement many other front-ends with different toolkits or languages!
>
> https://en.wikipedia.org/wiki/List_of_language_bindings_for_Qt_5
> Qt 5 language bindings   go, Python     PyQt[4], Python         PyOtherSide
> – only for QML,
> QML     QtQuick  – built into Qt[5], Rust       qmlrs  – only for QML
>
> From Richard Dale:
>
>     I used to maintain C bindings that were used by Objective-C and Qt#
> bindings. But the Smoke library is much better although it isn't a C
> binding, and I scrapped the QtC bindings to use smoke instead.
> [https://techbase.kde.org/Languages/Smoke   "The main purpose of SMOKE is
> making it easier to write bindings from scripting languages to Qt and KDE -
> with an emphasis on ease of use and flexibility. "]
>
> ============http://stackoverflow.com/questions/1728509/does-qt-have-a-c-interface=============
>
> ===============http://endl.ch/content/cxx2rust-pains-wrapping-c-rust-example-qt5===================
> Rust and QT seems a time pit:
> "Another heavily used feature in C++ is overloading. Apparently Rust doesn’t
> support functions overloading either. Yes, I know it’s intentional and no, I
> strongly disagree with all philosophical reasons that try to “justify” it.
> I’m developing software in C++ starting from 90’s and while I’ve seen some
> rare examples of poor functions overloading use - this is still “must have”
> feature for any non-trivial framework, both from convenience and learning
> perspectives.
>
> Anyway, arguments aside - the lack of overloading means there’s no
> reasonable way to use C++ methods names as Rust methods names without some
> form of deduplication. Because there’s no way I’m going to maintain the list
> of “intelligent” mappings for all Qt5 methods, the renaming is done
> automatically by adding a number after the function name - hence
> “QString::new7”, “toString2”, “arg12” etc.
>
> There are 5 overloads like this in Digital Clock example and 26 (!) in Image
> Viewer.
>
> Note this is completely non-obvious for bindings user (why not “new6” or
> “new8”?), require lengthy look-up in the generated bindings code for each
> such case - plus can easily change from version to version if overloads are
> added or removed, breaking code compilation."
>
>



-- 
Home
http://evanfoss.googlepages.com/
Work
http://forge.abcd.harvard.edu/gf/project/epl_engineering/wiki/

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