I was just reading about Singularity and one of its development languages, Sing#. Now I want to know which platforms I can develop for with Sing#.
I would image its proprietary to Singularity.
There is also Spec# which Sing# is derived from (from Wikipedia).
I believe Sing# was developed specifically for and only runs under Singularity, unfortunately.
Sing# is a derivative of C# that they made specifically to develop Singularity. I imagine it's just a specialized form for making an OS
http://www.microsoft-watch.com/content/operating_systems/microsofts_other_os.html
Related
OCaml comes with the Graphics module which allows the use of a graphical window.
Is it possible to open two graphical window, and switch between them ?
The Graphics module provides machine-independent tools but in case of a negative answer, perhaps it would also be interesting to have solutions for different window system, such as X11.
I looked through the Graphics module API and I don't see support for multiple windows. I would assume Graphics was intended as something useful but simple enough to be part of the base OCaml release.
For more complex graphics, it makes sense just to provide OCaml bindings to an existing library. If I go to opam.ocaml.org/packages and search for "graphics" I see a few possibilities.
I have done OpenGL coding in OCaml but in fact I had to build some wrappers for OS-native GUI functionality to create the windows. This was many years ago, however.
The Graphics module is quite limited and is more intended as a simple basic library for teaching purposes. A possible replacement for Graphics might be the tsdl package which is a thin wrapper around the SDL C library which should work on most platforms.
Is there any other class library like MFC which provides Document/View architecture or is it totally unique concept of MFC?
I realize that this is an old question, but for the benefit of those seeing this question via Google searches, the wxWidgets cross-platform GUI API contains a document-view framework as well. I never used it before, so I cannot tell how it comparess with the MFC implementation.
No, it is not, Apple used it for iPhone programming, at least until iOS 5 and if you take a look at the Stanford Universirty iOS Programming courses on iTunesU, you'll see that they'll teach it too. Moreover I've studied it in my OOP course here in Italy, so I can guess it's a worldwide accepted way to organize your code.
Certainly the concept can be found in other languages/frameworks. But, if you compare MFC with WinForms and WPF, then yes, this technique is unique.
I'm interested in creating a visual programming language which can aid non-programmers(like children) to write simple programs, much like Labview or Simulink allows engineers to connect functional blocks together without the knowledge of how they are internally built. Is this called programming by demonstration? What are example applications?
What would be an ideal platform which can allow me to do this(it can be a desktop or a web app)
Check out Google Blockly. Blockly allows a developer to create their own blocks, translations (generators) to virtually any programming language (or even JSON/XML) and includes a graphical interface to allow end users to create their own programs.
Brief summary:
Blockly was influenced by App Inventor, which itself was based off Scratch
App Inventor now uses Blockly (?!)
So does the BBC microbit
Blockly itself runs in a browser (typically) using javascript
Focused on (visual) language developers
language independent blocks and generators
includes a Block Factory - which allows visual programming to create new Blocks (?!) - I didn't find this useful myself...except for understanding
includes generators to map blocks to javascript/python
e.g. These blocks:
Generated this code:
See https://developers.google.com/blockly/about/showcase for more details
Best wishes - Andy
The adventure on which you are about to embark is the design and implementation of a visual programming language. I don't know of any good textbooks in this area, but there are an IEEE conference and refereed journal devoted to this field. Margaret Burnett of Oregon State University, who is a highly regarded authority, has assembled a bibliography on visual programming languages; I suggest you start there.
You might consider writing to Professor Burnett for advice. If you do, I hope you will report the results back here.
There is Scratch written by MIT which is much like what you are looking for.
http://scratch.mit.edu/
A restricted form of programming is dataflow (aka. flow-based) programming, where the application is built from components by connecting their ports. Depending on the platform and purpose, the components are simple (like a path selector) or complex (like an image transformator). There are several dataflow systems (just I've made two), some of them has no visual editor, some of them are just a part of a bigger system, and there're some which don't even mention the approach. (Did you think, that make, MS-Excel and Unix Shell pipes are some kind of this?)
All modern digital synths based on dataflow approach, there's an amazing visual example: http://www.youtube.com/watch?v=0h-RhyopUmc
AFAIK, there's no dataflow system for definitly educational purposes. For more information, you should check this site: http://flowbased.org/start
There is a new open source library out there: TUM.CMS.VPLControl. Get it here. This library may serve as a basis for your purposes.
There is Snap written by UC Berkeley. It is another option to understand VPL.
Pay attention on CoSpaces Edu. It is an online platform that enables the creation of virtual worlds and learning experiences whilst providing a more flexible approach to the learning curriculum.
There is visual coding named "CoBlocks".
Learners can animate and code their creations with "CoBlocks" before exploring and sharing them in mobile VR.
Also It is possible to use JavaScript or TypeScript.
If you want to go ahead with this, the platform that I suggest is the one used to implement Scratch (which already does what you want, IMHO), which is Squeak Smalltalk. The Squeak environment was designed with visual programming explicitly in mind. It's free, and Smalltalk syntax can learned in half an hour. Learning the gigantic class library may take just a little longer.
The blocks editor which was most support and development for microbit is microsoft makecode
Scratch is a horrible language to teach programming (i'm biased, but check out Pipes Visual Programming Language)
What you seem to want to do sounds a lot like Functional Block programming (as in functional block programming language IEC 61499 and other VPLs for mechatronics development). There is already a lot of research into VPLs so you might want to make sure that A) what your are trying to do has an audience and B) what you are trying to do can be done easily.
It sounds a bit negative in tone, but a good place to start to test the plausibility of your idea is by reading Davor Babic's short blog post at http://blog.davor.se/blog/2012/09/09/Visual-programming/
As far as what platform to use - you could use pretty much anything, just make sure it has good graphic libraries (You could use Java with Swing - if you like pain - or Python with TKinter) just depends what you are familiar with. Just keep in mind who you want to eventually launch the language to (if its iOS, then look at using Objective-C, etc.)
I am working on embedded linux, Is there any open source 2D renderer available which can draw on memory, scanline based, complete fixed-point support.
I work in c or cpp programming language.
I know one with which satisfy my all needs that is, Google Skia which google uses in android and chrome, But I found it without documentation, not straight-forward compilable, not straight-forward usable in 3rd party projects.
Regards, Sunny.
Checkout Cairo. I am not sure what you mean by "complete fixed-point support" but other than that it seems to meet your requirements.
Allegro is a games library which includes extensive software rendering, most of which does not rely on floating point. Additionally it has some trig functions and maths functions which work on fixed-point. It has things like sprite-rotation which don't need floating point.
Don't know if it's what you're looking for, but there's libcrtxy
http://libcrtxy.sourceforge.net/
DirectFB.
If you want hardware acceleration , directFB is the most portable way to go.
I had made some questions regarding PHP-GTK (there are only 4 php-gtk tagged questions and three are mine) and I end up answering myself because no one answer them.
I know it is a strange language selection but I was attracted to it because it runs on several OSs and the fact that I can reuse some of my code (also the apps end up looking good and I can make little installers in NSIS that just rocks).
Is there a better alternative, that is free (as in freedom) and can run on several platforms?
Both Python and Ruby can work with the GTK libraries. These may be better chocies of languages for you (you'll certainly get more folk here answering your questions :)
See Is Ruby any good for GUI development? and https://stackoverflow.com/questions/115495/is-python-any-good-for-gui-development for links for Ruby and Python respectively.
Does it have to be GPL, or are other open source solutions acceptable? Python has much more mature GTK integration and it's open source but not GPL. You can bundle python scripts into an executable with a runtime. You can generate these executables for many platforms including Windows.
To answer the first part of your question. Yes - I use php-gtk. This could be the start of a beautiful friendship.
To answer your question from the other side.
Other GUI applications that can be coded in PHP include wxWidgets and Qt, both of which have PHP bindings available: wxPHP and PHP-Qt