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javascriptadobe-indesignextendscript

Changing an Indesign Swatch incrementally with Extendscript (JavaScript)

I have an InDesign doc with the swatch named "mySwatch" which is C10 M20 Y30 K40. I have written the line:

app.activeDocument.colors.item("mySwatch").colorValue = [9,19,30,41];

to change it to a specific set of values (9,19,30,41), but I would like to instead add or subtract from the existing values, let's say [-1, -1, unchanged, +1].

Is this possible?

Solution

  • You will have to get the values out by assigning them to a new variable.

    var myvalues = app.activeDocument.colors.item("mySwatch").colorValue

    Do your operations on them.

    myvalues[0] = myvalues[0] - 1

    Reassign them to your swatch.

    app.activeDocument.colors.item("mySwatch").colorValue = myvalues

    (Not tested)