renderSwatchLegend.jsx

/////////////////////////////////////////////////////////////////
// Render Swatch Legend v1.3 -- CC
//>=--------------------------------------
//
//  This script will generate a legend of rectangles for every swatch in the main swatches palette.
//  You can configure spacing and value display by configuring the variables at the top
//  of the script.
//   update: v1.1 now tests color brightness and renders a white label if the color is dark.
//   update: v1.2 uses adobe colour converter, rather than rgb colour conversion for a closer match.
//   update: v1.3 adds multiple colour space values based on array printColors.
//>=--------------------------------------
// JS code (c) copyright: John Wundes ( john@wundes.com ) www.wundes.com
// copyright full text here:  http://www.wundes.com/js4ai/copyright.txt
//
// Edits by Adam Green (@wrokred) www.wrokred.com
//
//////////////////////////////////////////////////////////////////
doc = activeDocument,
swatches = doc.swatches,
cols = 4, // number of columns in group
displayAs = "RGBColor",  //or "CMYKColor"
printColors = ["RGB", "CMYK", "LAB", "GrayScale"], // RGB, CMYK, LAB and/or GrayScale
colorSeparator = " ", // Character used to separate the colours eg "|" output = R: XXX|G: XXX|B: XXX
textSize = 10, // output text size value in points
rectRef=null,
textRectRef=null,
textRef=null,
swatchColor=null,
w=150;
h=120,
h_pad = 10,
v_pad = 10,
t_h_pad = 10,
t_v_pad = 10,
x=null,
y=null,
black = new GrayColor(),
white = new GrayColor()
;

black.gray = 100;
white.gray = 0;

activeDocument.layers[0].locked= false;
var newGroup = doc.groupItems.add();
newGroup.name = "NewGroup";
newGroup.move( doc, ElementPlacement.PLACEATBEGINNING );

for(var c=2,len=swatches.length;c<len;c++)
{
    var swatchGroup = doc.groupItems.add();
    swatchGroup.name = swatches[c].name;

    x= (w+h_pad)*((c-2)% cols);
    y=(h+v_pad)*(Math.round(((c)+.03)/cols))*-1 ;
    rectRef = doc.pathItems.rectangle(y,x, w,h);
    swatchColor = swatches[c].color;
    rectRef.fillColor = swatchColor;
    textRectRef =  doc.pathItems.rectangle(y- t_v_pad,x+ t_h_pad, w-(2*t_h_pad),h-(2*t_v_pad));
    textRef = doc.textFrames.areaText(textRectRef);
    textRef.contents = swatches[c].name + "\r" + getColorValues(swatchColor);
    textRef.textRange.fillColor = is_dark(swatchColor)? white : black;
    textRef.textRange.size = textSize;
    rectRef.move( swatchGroup, ElementPlacement.PLACEATBEGINNING );
    textRef.move( swatchGroup, ElementPlacement.PLACEATBEGINNING );
    swatchGroup.move( newGroup, ElementPlacement.PLACEATEND );
}

function getColorValues(c)
{
    if(c.typename)
    {
        if (c.typename == "SpotColor") {
        return getColorValues(c.spot.color);
        };
        
        switch(c.typename)
        {
            case "RGBColor": sourceSpace = ImageColorSpace.RGB; colorComponents=[c.red,c.green,c.blue]; break;
            case "CMYKColor": sourceSpace = ImageColorSpace.CMYK; colorComponents=[c.cyan,c.magenta,c.yellow,c.black]; break;
            case "LabColor": sourceSpace = ImageColorSpace.LAB; colorComponents=[c.l,c.a,c.b]; break;
            case "GrayColor": sourceSpace = ImageColorSpace.GrayScale; colorComponents=[c.gray]; break;
        }
        outputColors = new Array();
        for (var i = printColors.length - 1; i >= 0; i--) {

            targetSpace = ImageColorSpace[printColors[i]];
            outputColors[i] = app.convertSampleColor(sourceSpace, colorComponents, targetSpace,ColorConvertPurpose.previewpurpose);
            for (var j = outputColors[i].length - 1; j >= 0; j--) {
                outputColors[i][j] = printColors[i].charAt(j)+": "+Math.round(outputColors[i][j]);
                if (j == outputColors[i].length -1) {
                    outputColors[i][j] += "\r";
                };
            };
            outputColors[i] = outputColors[i].join(colorSeparator);

        };


        return outputColors.join("");

    }
    return "Non Standard Color Type";
}

function is_dark(c){
 if(c.typename)
 {
    switch(c.typename)
    {
        case "CMYKColor":
        return (c.black>50 || (c.cyan>50 &&  c.magenta>50)) ? true : false;
        case "RGBColor":
        return (c.red<100  && c.green<100 ) ? true : false;
        case "GrayColor":
        return c.gray > 50 ? true : false;
        case "SpotColor":
        return is_dark(c.spot.color);

        return false;
    }
}
}