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Javascript to change font color based on linebreak

Explorer ,
Dec 04, 2022 Dec 04, 2022

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This is a bit of a weird one.

I have a string of text that I want to change the font color based off of each line break.

So for the below example, "color." make blue, "this." make green, and "text." make red. 

Yes, each line will end with a period if this makes it easier. Any suggestions? Thanks!

 

color.

this.

text.

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Actions and scripting

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Community Expert ,
Dec 05, 2022 Dec 05, 2022

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Code for menu design 

 

#target photoshop
var newColors = ['0000ff', '00ff00', 'ff0000'];
s2t = stringIDToTypeID;
(r = new ActionReference()).putProperty(s2t('property'), p = s2t('textKey'));
r.putEnumerated(s2t('layer'), s2t('ordinal'), s2t('targetEnum'));
if (executeActionGet(r).hasKey(p)) {
    var textKey = executeActionGet(r).getObjectValue(p),
        tList = textKey.getList(s2t('textStyleRange')),
        l = new ActionList(),
        styleSheet = [],
        lines = textKey.getString(s2t('textKey')).split('\r');
    for (var i = 0; i < tList.count; i++) {
        styleSheet.push({
            from: tList.getObjectValue(i).getInteger(s2t('from')),
            to: tList.getObjectValue(i).getInteger(s2t('to')),
            style: function (d) {
                if (d.hasKey(p = s2t('styleSheetHasParent')) && d.getBoolean(p)) if (d.hasKey(p = s2t('baseParentStyle'))) extend_descriptor(d.getObjectValue(p), d)
                return d;
            }(tList.getObjectValue(i).getObjectValue(s2t('textStyle')))
        })
    };
    var from = 0;
    for (var i = 0; i < lines.length; i++) {
        var to = from + lines[i].length + 1,
            cur = function (s, idx) { for (var i = 0; i < s.length; i++) if (s[i].from <= idx && s[i].to > idx) return s[i].style }(styleSheet, from),
            color = function (h) { var c = new SolidColor; c.rgb.hexValue = h; newColors.push(h); return c }(newColors.shift()),
            d = new ActionDescriptor();
        with (color.rgb) {
            d.putDouble(s2t('red'), red)
            d.putDouble(s2t('green'), green)
            d.putDouble(s2t('blue'), blue)
            cur.putObject(s2t('color'), s2t('RGBColor'), d)
        }
        d = new ActionDescriptor();
        d.putObject(s2t('textStyle'), s2t('textStyle'), cur)
        d.putInteger(s2t('from'), from)
        d.putInteger(s2t('to'), to)
        l.putObject(s2t('textStyleRange'), d)
        from = to
    }
    textKey.putList(s2t('textStyleRange'), l);
    (r = new ActionReference()).putEnumerated(s2t('layer'), s2t('ordinal'), s2t('targetEnum'));
    (d = new ActionDescriptor()).putReference(s2t('target'), r);
    d.putObject(s2t('to'), s2t('textLayer'), textKey);
    executeAction(s2t('set'), d, DialogModes.NO);
}
/** by @r-bin
 * https://community.adobe.com/t5/photoshop-ecosystem-discussions/how-to-copy-save-styles-typeface-font-size-design-etc-of-arbitrary-text-fragments-and-apply-them-to/m-p/10522630?search-action-id=307670300281&search-result-uid=10522630
 */
function extend_descriptor(src_desc, dst_desc) {
    try {
        for (var i = 0; i < src_desc.count; i++) {
            var key = src_desc.getKey(i);
            if (dst_desc.hasKey(key)) continue;
            var type = src_desc.getType(key);
            switch (type) {
                case DescValueType.ALIASTYPE: dst_desc.putPath(key, src_desc.getPath(key)); break;
                case DescValueType.BOOLEANTYPE: dst_desc.putBoolean(key, src_desc.getBoolean(key)); break;
                case DescValueType.CLASSTYPE: dst_desc.putClass(key, src_desc.getClass(key)); break;
                case DescValueType.DOUBLETYPE: dst_desc.putDouble(key, src_desc.getDouble(key)); break;
                case DescValueType.INTEGERTYPE: dst_desc.putInteger(key, src_desc.getInteger(key)); break;
                case DescValueType.LISTTYPE: dst_desc.putList(key, src_desc.getList(key)); break;
                case DescValueType.RAWTYPE: dst_desc.putData(key, src_desc.getData(key)); break;
                case DescValueType.STRINGTYPE: dst_desc.putString(key, src_desc.getString(key)); break;
                case DescValueType.LARGEINTEGERTYPE: dst_desc.putLargeInteger(key, src_desc.getLargeInteger(key)); break;
                case DescValueType.REFERENCETYPE: dst_desc.putReference(key, src_desc.getReference(key)); break;
                case DescValueType.OBJECTTYPE:
                    dst_desc.putObject(key, src_desc.getObjectType(key), src_desc.getObjectValue(key));
                    break;
                case DescValueType.ENUMERATEDTYPE:
                    dst_desc.putEnumerated(key, src_desc.getEnumerationType(key), src_desc.getEnumerationValue(key));
                    break;
                case DescValueType.UNITDOUBLE:
                    dst_desc.putUnitDouble(key, src_desc.getUnitDoubleType(key), src_desc.getUnitDoubleValue(key));
                    break;
                default: alert("Unknown data type in descriptor"); return false;
            }
        }
        return true;
    }
    catch (e) { throw (e); }
}

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