I'm surprised that there hasn't been much interest in porting good applications from other platforms to OS4 using FLTK. I've found a really nice spreadsheet here: http://nab.pcug.org.au/

It's called simply sprsht1.2.2. Complete source (Window and Linux binaries too) is included and it has a configurable GUI. The only dependency is FLTK. I sold my PegII about 18 months ago or I'd take a stab at porting this to OS4 using Massimiliano's FLTK library. Is anybody here willing to take this on? I've looked over the source code and I don't think it would take more than a few hours to have a working OS4 binary.

@ferrels

I don't remember seeing this FLTK port in action, is it feature complete and stable?

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@Thematic

It's stable but missing the following:

- OpenGL support
- Drag and Drop
- threads
- custom pointers

You can get it here: http://www.soft3dev.net/pages/fltk.php

Pre-compiled binaries for OS4 and nice screenshots too.

Last edited by ferrels on 06-Feb-2013 at 09:48 PM.

@ferrels

I've tried to google FLTK programs or programs built with FLTK but I never find any source code for them. Usually all I get are demos or instruction manuals for FLTK and not actual useful programs.
is there a repository for programs built with FLTK, or is there a good way to search for them?

Thanks,

Scott

Last edited by scabit on 07-Feb-2013 at 01:27 PM.

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@all

I have on my HD an updated FLTK port that adds:
- mousewheel support
- abiliy to access volumes and assigns when accessing '/'

The only problem preventing its release is that it seems I'm unable to compile it with a working JPEG support anymore. My test program is an updated flPhoto and when using this version I can't save (or rotate I don't remember) a JPEG without obtaining an error message (I forgot right now but I can provide it if required).

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@scabit

Here's a huge list of FLTK apps: http://www.fltk.org/links.php?LA+Q

If you're interested in doing any programming in FLTK, the best place to start is Erco's FLTK Cheat Page: http://seriss.com/people/erco/fltk/

Erco posts complete source code and screenshots for just about anything you can imagine.

I've also found that FLTK is much easier to use from a programmer's perspective than QT and it's light years easier to use compared to wxwidgets. FLTK executables are also about 1/10 the size of a QT or wxwidgets program.

Here's a screenshot and the complete source for a progress indicator from Erco's site. If you're a C/C++ programmer you'll appreciate the simplicity. It's less than 65 lines of code.




Erco's FLTK Cheat Page - Progress Bar Demo Source Code

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@abalaban

I wish now that I'd held on to my PegII. I should have been more patient but after letting it sit unused for 2 years in the garage, I felt it was time to let someone else enjoy it.

I suppose I could use a cross-compiler such as AmiDev and take a stab at porting some FLTK apps but I'd still need an OS4 system for testing......oh well, maybe some bored soul will become interested in FLTK for OS4 and port some apps for us.

@abalaban

interesting! Fix it! ;)

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@ferrels

Quote:

If you're a C/C++ programmer you'll appreciate the simplicity. It's less than 65 lines of code.

That is about same number of lines than with MUI.

Last edited by itix on 07-Feb-2013 at 08:10 PM.

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@abalaban

Hope you can fix it.

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@joeled & spotup

I'll try to see if I can find a way to fix it this time, but don't expect miracle The problem is related to libjpeg itself and every libjpeg I can get hold on now seems to produce the same error. IIRC when I tried to understand the reason of this error I found very little information about it.

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@abalaban

Do you really need libjpeg, can't you just use datatypes and some wrapper code?

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@abalaban

I ran into the same problem with a cross-platform GUI library called GraphApp that relies on libjpeg. The error always occurred at link time and I had to use the following switch in the CFLAGS portion of my makefile for sucess: -DPNG_NO_MMX_CODE


So my CFLAGS portion looked like this:

CFLAGS = -DPNG_NO_MMX_CODE -O2 -Wall -I. -Ix11 -Iutility -Igui -Ilibz -Ilibpng -Ilibjpeg -Ilibgif -I$(X11_INC_DIR)

@NutsAboutAmiga

libjpeg is a dependency of FLTK itself. While it's probably doable to add support of Datatypes it would be of no use because no existing FLTK would use them. Moreover Datatypes does not support saving and I'm not sure they cope very well with EXIF data...

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@abalaban

I hope the libjpeg issue isn't an error on my part. I did the libjpeg 8d port on OS4Depot. Seems like a fairly straight-forward process to build it. I assume you've tried porting it yourself? There's also a slightly older version on Aminet ported by Chris Young.

Last edited by MickJT on 09-Feb-2013 at 09:40 PM.

@abalaban

What was the error?

And did you try this one?

http://os4depot.net/index.php?function=showfile&file=development/library/graphics/libjpeg6b-dev.lha

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@broadblues

I'll try to find some time this evening to quote the exact error message.

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@abalaban

Any word yet?

@ferrels

Okay, I've just retried this night. Unfortunately the code broke on some recent system update and I had to fix this in order to be able to use flphoto again... Now that's fixed I was able to find out the error message is "Bogus virtual array access" (i.e. its JPEG error JERR_BAD_VIRTUAL_ACCESS).

Unfortunately the fltk port is using clib2 so I'm stuck for now with old libjpeg versions...

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