[release]binding for FLTK C dynamic library
[https://github.com/retsyo/FLTK_nim](https://github.com/retsyo/FLTK_nim)/
As all my released projects, it needs more works to finish. I do hope someone,
who knows nimlang well, can join or give suggestions
import fltk_main
proc ButtonClick (button: ptr FL_WIDGET, arg: pointer):cint {.cdecl.} =
Fl_WidgetCopyLabel(button, "do it again")
var Win = Fl_WindowNew(320, 200, "What a shiny Window :-)")
var Btn = Fl_ButtonNew(10, 10, 120, 32, "click me")
Fl_WidgetSetCallback(Btn, ButtonClick)
Fl_WindowShow(Win)
Fl_Run()
Run
p.s. In case someone asks,
# why not to use
1. [FreeBasic[(http://freebasic.net/)? because I need to handle many text
in my work, but I hate to write such in any BASIC
2. [nfltk](https://github.com/Skrylar/nfltk). because I can't compile it in
my MSYS2+MingW64 on Windows 7
3. wxWidgets? because I can't compile it in my MSYS2+MingW32 on Windows 7
3. QT? because I don't know how to compile it in my MSYS2+MingW64/32 on
Windows 7
4. [ui](https://github.com/nim-lang/ui)? because I needs widgets to write
spreedsheet app
5. web engine and HTML/js? I don't know how to do that. But I do find
http://tabulator.info is pretty
6. Python + QT/wxWidgets? Yes I do use them. But I find that some app built
with py2exe/pyinstaller does not run on any Windows version.
7. 2 space for indentation? Well, this project is opensourced, please give
you effort to it
# why the EXE file is big?
I don't know
# how to do static link?
I don't know how to do that in nimlang and FreeBasic. Do we need to supply
another binding?
BTW, `static link` is allowed by FLTK, and you do not need to opensource
your code.
# why do you always test/bind blaah blaah libraries
In fact, I don't mean to do that but I can't find a ready-to-use binding.
# License
I choose [FLTK's lincense](https://www.fltk.org/COPYING.php). But a note in
your appliaction such as "FLTK_nim is used" is appreciated.
Run
Re: Nim and Project Euler
> > What does it means? Firstly, that Nim is not popular at all. Secondly, it > > shows that Nim has not found an audience with people fond of mathematical > > and programming challenges. > > Ok. Any ideas how to make it more popular? :-) Adding a link to [Project Euler](https://projecteuler.net/) might help. :-) (Yes, I know that DuckDuckGo is my friend, but sometimes it's the little things that count.)
Re: Read gzip-compressed file line by line
This might help: [https://github.com/nim-lang/zip/issues/23](https://github.com/nim-lang/zip/issues/23)
My feelings on Python and Nim
Just some personal feelings on what I'm actually doing when I'm working with Python and Nim: Python: Nim: Python is no doubt quick to write, but debugging is very painful even with various powerful testing and debugging tools. Nim requires me to think a lot about how to design my code, probably due to the almighty macro system. I seldom doing more than `echo` in debugging. When it compiles, I'm almost confident it's basically correct. I'd say designing and writing code are the most interesting parts of programming. The next in line is googling language features. I think nobody want to spend a whole day (or week) writing tests or debugging. So it's clear which of the two languages is my preference. And C BTW. I don't write a lot of C code, but It's hard to forget all those time I spent with GDB. C: The pie charts don't show total amount of time required to achieve the same functionality, or expressiveness, or speed, so again they are just personal feelings and have nothing to do with language rankings.
Re: Python Modules & why Python is better
It's a clickbait title, people are unlikely to only read it and be convinced that "okay, Nim is worse than Python".
Re: Is it possible get the export flag of a type symbol
The macro will executed in scope which define the type symbol, so the when compiles will be always true.
Re: Is it possible get the export flag of a type symbol
You can use `when compiles(TYPE SYMBOL):`.
Re: Nim nightly builds
> to extract tar.xz archives that don't come with mac by default. I am taking `tar xf anything.anyarchive` taken for granted on my GNU/Linux system. Doesn't that work on macOS?
Is it possible get the export flag of a type symbol
I am writing a macro which need to know if a type symbol is exported or not. But the getImpl doesn't contain export flag. The following code: import macros type T1* = object macro m1(t: typed): untyped = echo t.getImpl.treeRepr m1(T1) Run The result is: TypeDef Sym "T1" Empty ObjectTy Empty Empty Empty Run Is there any way to get the export flag or other way to check if the symbol is exported or not? Thanks.
Re: Any advice on doing composition well in Nim
Refactorings done for now, everything is working again! This is my current entity.nim file: [https://ghostbin.com/paste/s8u9k](https://ghostbin.com/paste/s8u9k) Only thing is that in my (self: Entity, target: Entity) Run proc I need to coerce it to Run , all the time. However all is well now and I can go on to add an inventory :D.
Re: Any advice on doing composition well in Nim
The error was something along the line with expected seq[Entity] but got seq[Player] Run because my newEntity proc is something along the line func newEntity*[T](x, y: int, chr: char, color: Color, name: string, blocks = false, renderOrder = CORPS): T = result = new(T) result.x = x result.y = y result.chr = chr result.color = color result.name = name result.blocks = blocks result.renderOrder = renderOrder if T is Player: result.fighter = initFighter(12,20,30) if T is Orc: result.fighter = initFighter(10, 2, 3) if T is Kobold: result.fighter = initFighter(4, 2, 1) Run
Re: Nim nightly builds
I wish Mac builds where zips just like windows. On mac double clicking a zip just unzips it, while you have to download special tools to extract tar.xz archives that don't come with mac by default.
Re: I do not perceive the advantages of Nim over C #
Although this thread is rather old I'll answer anyway because certain attitudes and questions come up again and again. It might be useful to have something to link to instead of saying it again and again. Front-up: My first gut reaction to the OP was "Oh well, if he likes C# so much, why doesn't he just stick to it and be done". In other words: We are not salesmen, we love Nim and we are certainly happy if new users join but we are not salesmen. If you feel that language XYZ is so much better than Nim then simply stick to it. Simple as that. In fact, you might be perfectly right in thinking that XYZ is better than Nim - _for you_. There simply is _no_ best language. A language may be the right thing for many users and a broad spectrum of problems but _no_ language is generally the best. In my case (brutally compressed: reliable and safe software) I used Ada for quite some years and was _almost_ quite happy. In fact I've said a lot of good things about Ada (and still do). But there were those "buts". Nim addresses those. Well noted, Nim is _not_ "better than Ada". It just happens to offer a better trade-off for me. At least as of today Ada is (still) better in certain aspects but those are largely about "paranoid safety levels" (like real formal verifiability) and some things like much,much better docu (well, existing for decades that's not astonishing). I usually do not need those "paranoid safety levels". Software is almost never unsafe or insecure because AES-128 was used instead of AES-256 or because it breaks after having ca. 2 billion users (due to signed int32), etc. Nope, stuff breaks due to factors like creepily lousy code, utterly lacking design (and care), pressure by management demanding features, features, features, and inept languages (often (ab)used by inept developers). Nim addresses those issues to a large degree. And - that's very important - it makes it _easy, natural, and comfortable_ for the developer to write _considerably_ less buggy code. And by "considerably" I mean something in the range of 80% to 95% less bugs. In other words: Creating something like Heartbleed (SSL) was almost inevitable with the C code base. Creating Heartbleed using Nim would need a _serious_ level of carelessness or ill will. Two other points that are relevant for quite many are: Nim runs on quite many architectures and OSs. Unlike C# whose non-Windows support were ugly siblings and afterthoughts Nim wasn't designed for any particular architecture or OS. Nim offers the full feature set that is needed for many applications today. Support for both multithreading and async/await as well as for immutable variables come to mind as well as many (seemingly or factually) smaller things like defer or a really, really nice C interface or the fact that one can target javascript (and end up with something that is not crappy).
Re: Any advice on doing composition well in Nim
What error did you get? This code works for me: proc newEntity(): Entity = result = new Entity result.chr = '@' var player = newEntity() entities: seq[Entity] = @[player] render(entities) Run
Re: Advent of Code 2018 megathread
Yesterday I have sent a mail to people on our leaderboard who solved 25 tasks. If you're one of them and you didn't receive anything: first check your spam folder ;) and if there's nothing there, please contact me. Also, even if you didn't solve all 25 tasks, but you think some solution of yours (or a whole repo) is very nice/elegant/fast/etc. give us a link to it and a short explanation why you think we should award it :)
Re: Any advice on doing composition well in Nim
@nucky9 this gives me an error though I had did var player = newEntity() entities: seq[Entity] = @[player] Run Error goes away if I just set it to @[] and add them manually huh
Re: Nim nightly builds
@araq Can you please look at this Travis failure: [https://travis-ci.org/nim-lang/nightlies/builds/477664313](https://travis-ci.org/nim-lang/nightlies/builds/477664313) (the 139.1 and 139.2 jobs)? The windows builds are timing out even without koch testinstall running there. Is there any possibility to trim things out of `tools/winrelease`?
Re: Nim nightly builds
Looks like Windows devel jobs are timing out. cc: @kaushalmodi
Re: Nim nightly builds
Very strange and sad: several last 19.9 nightlies ([v0.19.9-9e68b2c](https://github.com/nim-lang/nightlies/releases/tag/v0.19.9-9e68b2c) \- 10 hours ago, [v0.19.9-f5cc2e2](https://github.com/nim-lang/nightlies/releases/tag/v0.19.9-f5cc2e2) \- two days ago, [v0.19.9-ab425d7](https://github.com/nim-lang/nightlies/releases/tag/v0.19.9-ab425d7) \- four days ago and [v0.19.9-11050d1](https://github.com/nim-lang/nightlies/releases/tag/v0.19.9-11050d1) \- five days ago) don't contain Windows assets
Re: Python Modules & why Python is better
Yeah, that's my point. Maybe the `nimrtl.dll` approach should be taken for these python packages? I think it will probably bring back [this issue](https://github.com/nim-lang/Nim/issues/8405).
Re: outputHandle problem
Thank you for sharing. :) import osproc, streams var exeName = "sayhello" when defined(windows): exeName &= ".exe." echo "exeName=",exeName [https://www.lost-identification.com](https://www.lost-identification.com) var tstouthdl = tstprc.outputStream() var line = newStringOfCap(120).TaintedString while true: if tstouthdl.readLine(line): echo "piped:",line elif not running(tstprc): break
Re: Creating instance of ptr "object" from instance of "object"
Use `addr` or `unsafeAddr` to turn it into a `ptr`. There shouldn't be a need to allocate this on the heap via `alloc`.
Re: Any advice on doing composition well in Nim
well in my previous iteration players,mobs,items were all entity's(with field of type option[Fighter]) and when rendering to screen I could just pass them along in one big seq: seq[Entity] the first one in that seq was the player for no big reason. But now I can't really put them in a seq since it wants specifically Entity. So my rendering code also has to change since it can't receive one big seq of what to draw. How could I change the rendering code to conform to the new style of inheritance?
