I can offer a personal bounty for anyone who can help me code this.
PNG editor.
lazarus / 39-Graphics

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Ozz_Nixon · 2022-10-14 00:26

Ok, subject is vague - but, I ramble. :-)


I need to make a PIXEL editor for a PNG Sprite FONT File.
Source File: 9litch.com/fonts/CP437_8x8.png

[/size][/color]
I would like to load that file - I will code all the HTTP stuff, and
then Copy TRect(0,0,8,8) and display in a grid like Windows' Character
Map for NULL, all the way to 255*8,0,8,8 - and display that in #255
spot on the Character map - I believe this part of the code is easy -
if you have a clue how to use the GRAPHICS unit. (I DO NOT).

Then Double Click on Character Map letter - like "A" - show it 8
blocks wide, by 8 blocks tall. Click any block it will either show
WHITE $00FFFFFF, or BLACK $00000000. And it toggle. When done editing
- click SAVE - and I will code all the HTTP stuff to push it back up
to my server.

Can anyone help me - at least with the first part? I can probably take
your code, and hack out the 2nd part. I just have NO CLUE where to
start, BitBlotBlapBloom or whatever.

Thank you kindly (for any helpful replies). I want to do this to
learn, as the next iteration is to introduce 24bit color per "PIXEL",
and to support 9x16, then 10x19, and 12x23 - and maybe even 16x16.
Right now this is a "Web" Telnet program that I have been hacking and
improving since 1/1/17. Now, I need to make more fonts :-)
Ozz

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Ozz_Nixon · 2022-10-14 00:31

* Also, after reading more posts - Graphics32 is acceptable if it
makes the PNG part easier.

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Fred vS · 2022-10-14 00:42

This is the best solution:
https://wiki.lazarus.freepascal.org/BGRABitmap
It can edit PNG, of course.

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paweld · 2022-10-14 10:38

Attached is an example, it should be quite easy to expand it with
other image sizes.

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Ozz_Nixon · 2022-10-14 22:48

Quote from: paweld on October 14, 2022, 12:38:07 pmAttached is an
example, it should be quite easy to expand it with other image sizes.


I see 7 others downloaded this - after skimming through the code - 
[size=78%]WOW! I was not expecting that much effort/completion. If you
have PayPal or Venmo - I would gladly send you a couple bucks - as
this makes it look so simple now! Your project file references
Interfaces - and I get a compile error - is that really needed? I run
a very lean Lazarus environment - mainly for testing components to
take screenshots and do reviews about them. So I try to not add
anything - snapshot, do review, rollback. :-)[/size]
[/size]
[/size]Best Regards![size=78%]
[/size]Ozz[size=78%]