Sketch - Photoshop Inspired Image Editor for ComputerCraft

• Easy to use 'New Document' and 'Open Document' windows.
• Supports NFT (NPaintPro format) and NFP (paint format) as well as a proprietary format, SKCH, that supports layers.
• A large variety of tools (Hand [for panning], Pencil, Eraser, Fill Bucket, Selection, Move [selections], Text)
• Custom tool sizes
• Add, rename and remove layers
• Cut, Copying and Pasting
• Cropping and resizing
• And more

Spoiler

theoriginalbit, on 20 March 2014 - 01:14 AM said:

Looks very nice! Shame we can't have some more colours just to get the UI looking even better, but you've done really well with what we've got :)/> I definitely do like the canvas size ability, that was a major annoyance I always had with NPP :)/>

I notice you went for a serialisation to save the data in the file, is there a particular reason for this?

oeed, on 20 March 2014 - 01:23 AM said:

To be perfectly honest, it's mainly because it was going to be a lot easier to store the layer values (name, visibility, etc) doing that than making my own special thing to do it. It also means that it will be easier for other people to use the format should they so wish to do so. While it does make the images bigger the files still aren't very big at all, the largest would only get to a few kilobytes.

LeGoldFish, on 20 March 2014 - 01:59 AM said:

Also, how did you get that thin line in your computer?

LeGoldFish, on 20 March 2014 - 01:59 AM said:

Also, how did you get that thin line in your computer?

awsmazinggenius, on 20 March 2014 - 06:39 AM said:

Don't you think that the advanced computer check should be the first thing that happens? That way, you don't spend the tiny bit of time that it takes to load all those variables and then find out it won't work on their system.

theoriginalbit, on 20 March 2014 - 01:33 AM said:

Is there a way to 'flatten visible image' and export to say `.npp`?

theoriginalbit, on 20 March 2014 - 01:11 PM said:

I really wanna know, so quote again :P/>

theoriginalbit, on 20 March 2014 - 01:33 AM said:

Is there a way to 'flatten visible image' and export to say `.npp`?

Csstform, on 20 March 2014 - 05:31 PM said:

Feature Request:

Spoiler

Similar to CS3+, can you add some kind of a way to run a script on it?then, I could have one program call Sketch, load a script, and print something out/edit a picture.

Request:

Spoiler

Do I have permission to use the proprietory file of .skch for PokeCC? I want to check before I just up and use it.

Comments:
I really enjoy this, not sure how good it is compared to nf's paint program (never used it), but I really like it. WAY better than default. I especially like the specified sizes, and transparency. Also: I like that first screenie. ;)/>

Hellkid98, on 20 March 2014 - 07:31 PM said:

Really nice that you released this! Love the UI as always! :D/>

LeGoldFish, on 21 March 2014 - 03:43 PM said:

Bug: When you use .nfp, it gives you a message urging you to switch from .nst to .nfp when your using .nfp anyway.

pingoleon60, on 21 March 2014 - 04:06 PM said:

Pretty awesome.
Really useful and easy to use.

A (pretty big) suggestion : add a way to create animations, and make them automated (a little like Flash, you say "hey layer 3, move one pixel up please").

Csstform, on 21 March 2014 - 07:04 PM said:

When I suggested scrips, I was half asleep or something, I can't think of a single use. An eyedropper might be nice though.

pasilein007, on 21 March 2014 - 08:06 PM said:

Pastebin has a error reported

"pastebin:101: attempt index ? (a nil value)"

pasilein007, on 21 March 2014 - 08:06 PM said:

Pastebin has a error reported

"pastebin:101: attempt index ? (a nil value)"

edit pastebin

awsmazinggenius, on 23 March 2014 - 06:42 PM said:

Edit: Hellkid, only 10 more posts until you get your custom title, start thinking about it!

Chickenbreadlp, on 24 March 2014 - 02:34 PM said:

Could i use this for my OS. It is called ApfelOS and i will give credit.

awsmazinggenius, on 24 March 2014 - 11:59 PM said:

I've been working on Creative Craft Image Shack for a little bit now (my image editor for CC and OC in one file) and one thing that I'm adding is Undo. I think it might be something worth adding into Sketch and Ink, too.

awsmazinggenius, on 25 March 2014 - 02:40 AM said:

EDIT:

awsmazinggenius, on 30 March 2014 - 05:28 AM said:

awsmazinggenius, on 25 March 2014 - 02:40 AM said:

EDIT:

Since I only edited my post instead of creating a new one, I'm not sure oeed has actually seen the report. Hence, I'm going to have to double post, and ask to have my old one deleted.

TableCraft0R, on 12 June 2014 - 01:08 PM said:

How do I render skch images? [ like paintutills.loadImage? ]

function ReadSKCH(path)
local _fs = fs
if OneOS then
  _fs = OneOS.FS
end
local file = _fs.open(path, 'r')
local _layers = textutils.unserialize(file.readAll())
file.close()
local layers = {}
for i, l in ipairs(_layers) do
  local layer = {
   Name = l.Name,
   Pixels = ParseNFT(l.Pixels),
   BackgroundColour = l.BackgroundColour,
   Visible = l.Visible,
   Index = l.Index,
  }
  table.insert(layers, layer)
end
return layers
end

function ParseNFT(lines)
local pixels = {}
for y, line in ipairs(lines) do
  local bgNext, fgNext = false, false
  local currBG, currFG = nil,nil
  local writePosition = 1
  for x = 1, #line do
   if not pixels[writePosition] then
    pixels[writePosition] = {}
   end
   local nextChar = string.sub(line, x, x)
		    if nextChar:byte() == 30 then
				    bgNext = true
		    elseif nextChar:byte() == 31 then
				    fgNext = true
		    elseif bgNext then
				    currBG = getColourOf(nextChar)
				    if currBG == nil then
					 currBG = colours.transparent
				    end
				    bgNext = false
		    elseif fgNext then
				    currFG = getColourOf(nextChar)
				    fgNext = false
		    else
				    if nextChar ~= " " and currFG == nil then
						    currFG = colours.white
				    end
				    pixels[writePosition][y] = {BackgroundColour = currBG, TextColour = currFG, Character = nextChar}
				    writePosition = writePosition + 1
		    end
  end
end
return pixels
end

ade125, on 28 October 2014 - 09:46 AM said:

Can I export to png?

oeed, on 28 October 2014 - 10:12 AM said:

ade125, on 28 October 2014 - 09:46 AM said:

Can I export to png?

There are a few other programs that will let you do that, but no, Sketch can't.

• 'Flatten' images
• No more sidebar - everything is done with windows, you can move them and redock them
• Resize images (not as in crop, as in double the size of pixels or whatever)
• Zooming (kinda like above)
• Undo and redo
• Save as (and in whatever format you want)
• Filters (think Photoshop adjustment layers, such as black and white, invert, etc)
• Filter masks, again, think Photoshop adjustment layer masks
• Two current colours, left click for the first colour right for the second
• Spray can (like the one in MS Paint, kinda useless, but meh)
• More stuff I've forgotten about

AlkamlBan, on 16 December 2014 - 05:59 PM said:

You really should add the ability to add colored characters (slashes, comas etc.) because many people use them to create shapes that the pixels just can't produce.

awsumben13, on 16 December 2014 - 06:04 PM said:

AlkamlBan, on 16 December 2014 - 05:59 PM said:

You really should add the ability to add colored characters (slashes, comas etc.) because many people use them to create shapes that the pixels just can't produce.

As far as I'm aware, you can using the text tool. Unless he has removed this in a newer version, you definitely can as I've done it before.

If you're talking about the beta, it's a beta, and he probably hasn't had time to implement it yet.

Admiraltallcactus, on 08 July 2015 - 04:05 AM said:

Can I print .skch with pantutils.drawImage()?

oeed, on 08 July 2015 - 10:27 AM said:

Admiraltallcactus, on 08 July 2015 - 04:05 AM said:

Can I print .skch with pantutils.drawImage()?

Yeah Ben hit the nail on the head really. Sketch just uses NFT for the most part, the rest is just a serialised table you can easily decode with textutils. Reading NFT isn't incredibly straight forward, but not impossible. You'd probably be best to either look and see if there's an Ask a Pro topic/tutorial or look through the code of Sketch (there's something in the Objects folder that does it) or the NPaintPro code.

sketch:439: attempt to index ? (a nil value)

1. Make an image (the format and background colour does not matter) of any proportions (as long as the height is larger than that of the width (e.g. 5x10))
2. Resize the image making the width any amount larger (e.g. 5->6) and the height any amount smaller (e.g. 10->9).

Thefdjurt, on 10 July 2015 - 06:18 PM said:

This is awesome, I have planned to download this a never had a need to edit images in CC until now and this made it a lot easier.
With that said I have found a bug :(/>.
I was attempting to resize a 19x51 image to 51x19 and I got

sketch:439: attempt to index ? (a nil value)

Recreating the bug:

1. Make an image (the format and background colour does not matter) of any proportions (as long as the height is larger than that of the width (e.g. 5x10))
2. Resize the image making the width any amount larger (e.g. 5->6) and the height any amount smaller (e.g. 10->9).

The error occurs in the layer draw function on the x=[new width] y=[new height]. I sorry if I am not too much of a help in this, I have yet to look a the code in an editor that isn't the CC editor.

ReBraLaCC, on 10 October 2015 - 01:16 PM said:

Is there a way to print the image on screen?

WattanaMC, on 08 April 2017 - 06:07 AM said:

Here are some of my questions:
How to load the image in .skch format?
Are there some api that can load the image crated using Sketch?

oeed, on 08 April 2017 - 10:29 PM said:

WattanaMC, on 08 April 2017 - 06:07 AM said:

Here are some of my questions:
How to load the image in .skch format?
Are there some api that can load the image crated using Sketch?

No unfortunately there is not an API. It is a fairly simple format though, it's just a textutils serialised table with NFTs in it. I'd take a look at the code and reverse engineer it.