OpenEuphoria

1. libui: a portable GUI library for C

• Posted by ghaberek (admin) Jun 14, 2016
• 2241 views

I recently came across libui and started putting together a wrapper for it. It's still in early alpha stage, but it's been under continuous development for about the past year. I've already had some interaction with the developer on GitHub and I've even got my wrapper listed on the main page for the project.

The API reminds me of IUP but it's not as overwhelming and it relies entirely on box sizer concepts like wxWidgets. The API will surely grow over time and I hope to keep up on the changes. The developer has been quite good about making small consumable commits and tracking changes on the main project page.

You'll find my wrapper here: https://github.com/ghaberek/libui-euphoria. There are precompiled binaries on the project releases page.

Note: The latest Windows binaries don't seem to be working correctly right now (see #111) but I can provide a zip of my local build from Visual Studio upon request.

Here is the requisite "hello world" example. More examples can be found here: examples.

include libui/ui.e 
 
atom mainwin 
 
function onClosing( atom w, atom data ) 
 
    uiControlDestroy( w ) 
    uiQuit() 
 
    return 0 
end function 
 
function shouldQuit( atom data ) 
 
    uiControlDestroy( mainwin ) 
 
    return 1 
end function 
 
procedure main() 
 
    object err 
    atom menu 
    atom item 
    atom box 
    atom _label 
 
    err = uiInit() 
    if sequence( err ) then 
        puts( 2, err ) 
        abort( 1 ) 
    end if 
 
    menu = uiNewMenu( "File" ) 
    item = uiMenuAppendItem( menu, "Item" ) 
    item = uiMenuAppendQuitItem( menu ) 
    uiOnShouldQuit( "shouldQuit" ) 
 
    mainwin = uiNewWindow( "Window", 640, 480, 1 ) 
    uiWindowSetMargined( mainwin, 1 ) 
    uiWindowOnClosing( mainwin, "onClosing" ) 
 
    box = uiNewVerticalBox() 
    uiBoxSetPadded( box, 1 ) 
    uiWindowSetChild( mainwin, box ) 
 
    _label = uiNewLabel( "Hello, World!" ) 
    uiBoxAppend( box, _label, 0 ) 
 
    uiControlShow( mainwin ) 
    uiMain() 
    uiUninit() 
 
end procedure 
 
main() 

-Greg

3. Re: libui: a portable GUI library for C

• Posted by andi49 Jun 19, 2016
• 2105 views

Hi

Hallo, looks really nice....

But what about this: https://bitbucket.org/ghaberek/iup4eu

and all this talking: http://openeuphoria.org/forum/129148.wc

Just for the files, iup4eu is dead?

Andreas

5. Re: libui: a portable GUI library for C

• Posted by elias_maluko Jun 20, 2016
• 2009 views

But Iup do exatly the same thing as libui, a common api for diferent native toolkits.
I believe Iup goes beyound by exposing canvas, opengl and an imaging lib.

7. Re: libui: a portable GUI library for C

• Posted by ghaberek (admin) Jun 20, 2016
• 1996 views

My work on libui does not invalidate my work on IUP. They're two quite different projects. But I'm very curious about where libui might be going so I'm trying to keep up with it as it's developed.

IUP is huge and, to be honest, quite difficult to maintain on my own. It's why I tried my hand and wrapping automatically, but that has its limits. As Tom said, documentation is key but I'd like to get that integrated with wrapper code so that it can be generated with eudoc.

It's also been difficult to make it easier for users to install IUP on their own. The folks at Tecgraf don't even provide an automated installer or deb/yum packages. I have a half-working Inno Setup project for automatically downloading and installing IUP on Windows, but that's just for Windows.

I don't really want to be maintaining so many different aspects of IUP on my own. I've asked for help on the project, and I've gotten some but the project still needs more help. I don't know how much effort I can put into it without others stepping up to help.

Plus, with the recent addition of EuIup, I feel like we're starting to have too many cooks in the kitchen. I appreciate the efforts there but why not help with iup4eu instead? The great thing about standards is that everybody has one and that's really discouraging when one is trying to improve the state of things.

-Greg