how to change Name of RGB swatches to hex Value via script

[LuisGlück]

Hello out there!!!

I tried changing a script to change all of the RGB swatch names to the hex value. But I failed !!!
here my first attempt:

(function(){  
  var doc=app.activeDocument,  
  sw=doc.swatches.everyItem().getElements(),  
  c;  
  for(var i=3; i<sw.length; i++){  
  try{  
  c=doc.colors.itemByID(sw[i].id);  
  switch (c.space){  
  case ColorSpace.RGB:  
  c.name='hex='+Math.round(c.colorValue[3]);  
  }  
  }catch(e){};  
  }  
}()) 

now i know i have to implement the funktion "hex to rgb" but i dont know how!!!
here is a script that shows all the Hex Values... 

app.activeDocument.rgbProfile="sRGB IEC61966-2.1"
var swatches = app.activeDocument.swatches;
var array = [];
    
for (var i = 0; i < swatches.length; i++) {
    try {
        array.push(rgbToHex(swatches[i]));
    }
    catch(e){}
}

alert(array);



function rgbToHex(s){
    var hexStr = "";
    var dup = s.duplicate();
    dup.space = ColorSpace.RGB
    var c = dup.colorValue;
    
    for (var i = 0; i < c.length; i++) {
        var hex = Number(c[i]).toString(16);
        if (hex.length < 2) {
            hex = "0" + hex;
        } 
        hexStr += hex;
    }
    dup.remove();
    return hexStr;
}

How could i merge the two scripts???? 
An Idea would be awesome!!!! 

[BarlaeDC]

Hi,

I think something like this should work - (Not tried it out, just merged the above code:

var doc=app.activeDocument, sw=doc.swatches.everyItem().getElements(),  c;  
  for(var i=3; i<sw.length; i++){  
  try{  
  c=doc.colors.itemByID(sw[i].id);  
  switch (c.space){  
   c ase ColorSpace.RGB:  
    c.name='hex='+rgbToHex ( c);  
  }  
  }catch(e){};  
}  

  function rgbToHex(s){
    var hexStr = "";
    var dup = s.duplicate();
    dup.space = ColorSpace.RGB
    var c = dup.colorValue;
    
    for (var i = 0; i < c.length; i++) {
        var hex = Number(c[i]).toString(16);
        if (hex.length < 2) {
            hex = "0" + hex;
        } 
        hexStr += hex;
    }
    dup.remove();
    return hexStr;
}

Regards

Malcolm

[rob day · Accepted solution]

Hi Malcolm, the returned values in your script don’t always match InDesign’s HEX code for an RGB color.

I don’t have a Javascript translation, but this AppleScript works where I’m getting the hex pairs for each channel:

--https://en.wikipedia.org/wiki/Hexadecimal#Other_simple_conversions

tell application id "com.adobe.indesign"
	set sw to every swatch of active document whose space is RGB
	--name the rgb swatches with hex value
	repeat with x in sw
		try
			set cv to color value of x
			set hv to my convertRGB(item 1 of cv, item 2 of cv, item 3 of cv)
			set name of x to hv
		end try
	end repeat
end tell

--get an individual channel’s hex.
--d is the r,g, or b value 0-255
on toHex(d)
	set r to d mod 16
	if (d - r) is 0 then
		return my toChar(r)
	end if
	set hn to (my toHex((d - r) / 16)) & (my toChar(r))
	return hn
end toHex

--get the hex string
on toChar(n)
	set alphaList to {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"}
	set pos to (n as number) + 1
	return item pos of alphaList
end toChar

--convert 
on convertRGB(r, g, b)
	set h1 to my toHex(r)
	if (count of characters in h1) is 1 then
		set h1 to "0" & h1
	end if
	set h2 to my toHex(g)
	if (count of characters in h2) is 1 then
		set h2 to "0" & h2
	end if
	set h3 to my toHex(b)
	if (count of characters in h3) is 1 then
		set h3 to "0" & h3
	end if
	return "#" & h1 & h2 & h3
end convertRGB

[BarlaeDC]

Hi @rob day 

You are probably correct, the question was "How could i merge the two scripts???? " So I merged the two scripts exactly as they where in the question, that is all,  I didn't check the the code any further than making sure it compiled and ran.

Regards

Malcolm

[LuisGlück]

THANK YOU SO MUCH!!!

Your so great!!! 

At first it didn't work, but then I noticed that I still use file extension .jsx instead of .applescript

love your work !!!

[rob day]

I think this JS translation works:

var sw = getSwatches();


for (var i = 0; i < sw.length; i++){
    
    if (sw[i].space == ColorSpace.RGB) {
        var cv = sw[i].colorValue
        var hv = getHex(cv[0],cv[1],cv[2])
        sw[i].name = "hex=" + hv;
    } 
};   


/**
* Get hex number or letter 
* @Param a 
* @Return hex character 
* 
*/
function toChar(n){
    var alphaList = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "b", "c", "d", "e", "f"]
    return alphaList[Math.round(n)]
}


/**
* Get a hex pair for a number 0-255
* @Param the number to convert 
* @Return hex pair string
* 
*/
function toHex(d){
    var r = d % 16
    if ((d-r) == 0) {
        return toChar(r)
    } 
    var hn = toHex((d - r) / 16) + "" +  toChar(r)
    return hn
}


/**
* Get RGB hex value
* @Param red channel number 
* @Param green channel number 
* @Param blue channel number 
* @Return full hex string 
* 
*/
function getHex(r,g,b){
    var h1 = toHex(r)
    if (h1.length == 1) {
        h1 = "0" + h1;
    } 
    var h2 = toHex(g)
    if (h2.length == 1) {
        h2 = "0" + h2;
    }
    var h3 = toHex(b)
    if (h3.length == 1) {
        h3 = "0" + h3;
    }
    return h1 + h2 + h3
}


/**
* Gets a collection of the active document’s read/write swatches 
* @Return an array of swatches 
* 
*/
function getSwatches(){
    var p=app.activeDocument.swatches; 
    var def = ["Black", "Cyan", "Magenta", "Yellow", "Paper", "Registration", "None"]; 
    var s = [];
    var d = false;
    
    for (var i = 0; i < p.length; i++){
        for (var j = 0; j < def.length; j++) {
            if (def[j] === p[i].name) {
                d = true;
            }
        }
        if (!d) {s.push(p[i])} 
        d = false;
    }
    return s
}