OpenEuphoria

2. Re: Widget Toolkits

• Posted by petelomax Feb 26, 2023
• 1115 views

I'm actually working on xpGUI, a new cross-platform GUI for Phix that uses WinAPI on Windows, GTK on Linux, and document.createElement() under JavaScript.
I plan to keep it as simple as possible, very early days yet, slightly stuck on a simple canvas, though recently rather busy with slightly more important stuff.
You can see the code I've got so far and four short (and incomplete) examples that work on both WinAPI and GTK here. (but no xpGUI.js as yet)

4. Re: Widget Toolkits

• Posted by ChrisB (moderator) Feb 27, 2023
• 1026 views

Hi Pete

xp has connotations of Windows xp - not necessarily a bad thing.

Why don't you consider the name MonGoose (like MonGUIse)

(Cat amongst pigeons and not serious) (and not a Kat reference)

Cheers

SmileOfTheDayChris

6. Re: Widget Toolkits

• Posted by ghaberek (admin) Feb 27, 2023
• 1006 views

I've been revisiting IUP lately (basically starting over on my old "iup4eu" wrapper) and I now have a script that can regenerate the entire wrapper automatically in a few seconds. You can see the output of that here: iup.e. That file is only about 10% hand-coded while iup_export.e is about 50% hand-coded (everything except the function defs at the bottom). Using libffi definitely helps with IUP since some of the callbacks pass strings (which I've added better support for using libffi) and floats (which Euphoria does not support in callbacks at all). One neat trick is that I've got Icallback() using a map to avoid recreating callbacks. So helps clean up the code for registering callbacks with parameter types, as demonstrated below. But... (big but here) I'm about halfway done integrating libffi into the Euphoria backend (at least it builds now!) and I'd like to get that done first rather than relying on my very experimental libffi wrapper. And if we are going to write our own GUI toolkit for Euphoria, I'd like to implement classes first. I'm not a huge fan of OOP but everything in the GUI space is already built that way and I think it would make the whole process a lot easier and more manageable. I think IUP will suffice for now and we can package with the release of Euphoria 4.2.

include iup.e 
 
-- int function(Ihandle* ih, int button, int pressed, int x, int y, char* status); [in C] 
function button_cb( atom ih, integer button, integer pressed, integer x, integer y, sequence status ) 
 
    return IUP_DEFAULT 
end function 
-- declare the callback with its name and parameter types, like this: 
Icallback( "button_cb", {C_POINTER,C_INT,C_INT,C_INT,C_INT,C_STRING} ) 
 
-- int function(Ihandle* ih, const char* filename, int num, int x, int y); [in C] 
function dropfiles_cb( atom ih, sequence filename, integer num, integer x, integer y ) 
 
    return IUP_DEFAULT 
end function 
Icallback( "dropfiles_cb", {C_POINTER,C_STRING,C_INT,C_INT,C_INT} ) 
 
-- int function(Ihandle* ih, int op, float posx, float posy); [in C] 
function scroll_cb( atom ih, integer op, atom posx, atom posy ) 
 
    return IUP_DEFAULT 
end function 
Icallback( "scroll_cb", {C_POINTER,C_INT,C_FLOAT,C_FLOAT} ) 
 
procedure main() 
 
    IupOpen() 
 
    atom canvas = IupCanvas( NULL ) 
    IupSetAttribute( canvas, "BORDER", "NO" ) 
    IupSetAttribute( canvas, "DROPFILESTARGET", "YES" ) 
    IupSetAttribute( canvas, "SCROLLBAR", "YES" ) 
 
    -- now Icallback() will find the existing callbacks declared 
    -- above, which already have their parameter types defined: 
    IupSetCallback( canvas, "BUTTON_CB", Icallback("button_cb") ) 
    IupSetCallback( canvas, "DROPFILES_CB", Icallback("dropfiles_cb") ) 
    IupSetCallback( canvas, "SCROLL_CB", Icallback("scroll_cb") ) 
 
    atom dialog = IupDialog( canvas ) 
    IupSetAttribute( dialog, "RASTERSIZE", "720x480" ) 
    IupSetAttribute( dialog, "TITLE", "Canvas" ) 
 
    IupShow( dialog ) 
    IupMainLoop() 
 
    IupClose() 
 
end procedure 
 
main() 

I read this as mon-GWEE-see which is fun to say out loud.

Lol yeah, probably. I appreciate that Pete.

-Greg

8. Re: Widget Toolkits

• Posted by axtens_bruce Feb 27, 2023
• 898 views

Wow, there's lots of mongooses (or is it mongeese?). If Greg's got dibs on the name "mongoose" one might want to use the Latin.

-Bruce

10. Re: Widget Toolkits

• Posted by Icy_Viking Feb 27, 2023
• 887 views

include iup.e 
 
-- int function(Ihandle* ih, int button, int pressed, int x, int y, char* status); [in C] 
function button_cb( atom ih, integer button, integer pressed, integer x, integer y, sequence status ) 
 
    return IUP_DEFAULT 
end function 
-- declare the callback with its name and parameter types, like this: 
Icallback( "button_cb", {C_POINTER,C_INT,C_INT,C_INT,C_INT,C_STRING} ) 
 
-- int function(Ihandle* ih, const char* filename, int num, int x, int y); [in C] 
function dropfiles_cb( atom ih, sequence filename, integer num, integer x, integer y ) 
 
    return IUP_DEFAULT 
end function 
Icallback( "dropfiles_cb", {C_POINTER,C_STRING,C_INT,C_INT,C_INT} ) 
 
-- int function(Ihandle* ih, int op, float posx, float posy); [in C] 
function scroll_cb( atom ih, integer op, atom posx, atom posy ) 
 
    return IUP_DEFAULT 
end function 
Icallback( "scroll_cb", {C_POINTER,C_INT,C_FLOAT,C_FLOAT} ) 
 
procedure main() 
 
    IupOpen() 
 
    atom canvas = IupCanvas( NULL ) 
    IupSetAttribute( canvas, "BORDER", "NO" ) 
    IupSetAttribute( canvas, "DROPFILESTARGET", "YES" ) 
    IupSetAttribute( canvas, "SCROLLBAR", "YES" ) 
 
    -- now Icallback() will find the existing callbacks declared 
    -- above, which already have their parameter types defined: 
    IupSetCallback( canvas, "BUTTON_CB", Icallback("button_cb") ) 
    IupSetCallback( canvas, "DROPFILES_CB", Icallback("dropfiles_cb") ) 
    IupSetCallback( canvas, "SCROLL_CB", Icallback("scroll_cb") ) 
 
    atom dialog = IupDialog( canvas ) 
    IupSetAttribute( dialog, "RASTERSIZE", "720x480" ) 
    IupSetAttribute( dialog, "TITLE", "Canvas" ) 
 
    IupShow( dialog ) 
    IupMainLoop() 
 
    IupClose() 
 
end procedure 
 
main() 

That looks pretty handy. The fact that libffi is part of Euphoria now, well that sounds even better for wrapping various libraries. Hopefully 4.2.0 won't take super long before it is released.

12. Re: Widget Toolkits

• Posted by ChrisB (moderator) Apr 05, 2023
• 610 views

Definitely no one will use it if it's not available!

Go on - do it for the hell of it!

We appreciate you, really.

Cheers

Chris

14. Re: Widget Toolkits

• Posted by axtens_bruce Apr 05, 2023
• 593 views

CEAN - Comprehensive Euphoria Archive Network

-Bruce
Forked into: CEAN / CPAN / Pete's site

16. Re: Widget Toolkits

• Posted by Bhupen1277 Apr 06, 2023
• 564 views

xpgui
The name to the seasoned computer user takes one back to the days of Windows XP.
Whether or not it woks on XP is not my criticism.
Most sensible people have Window 10, even Windows 11
So it would be psychologically counterproductive to call it XPGUI. Call it something like GUI10 and then still include ability for it to work with Windows XP
The whole effort should be to bring Euphoria and Phix to the current level, even in the naming of things like a GUI

18. Re: Widget Toolkits

• Posted by euphoric (admin) Apr 07, 2023
• 537 views

I'm still using the old wxEuphoria GUI! (I'm not using Irv's GTK only because I've had no reason to switch from wxEuphoria. But should wxEuphoria ever become show-stopping, I would probably hop instantly to EuGTK or to pGUI (for Phix).)

I think the contest is between GTK and wxWidgets. To limit ourselves to a Windows-only GUI seems ill-advised at this point.

20. Re: Widget Toolkits

• Posted by katsmeow Apr 13, 2023
• 456 views

Concerning reuseable code.