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A
antonellot5396560
Participant
August 12, 2018
Answered

Layer - new Adjustment Layer - Black And White...

  • August 12, 2018
  • 1 reply
  • 1338 views

Hi all.

I would create a new Black and White Adjustment layer inside a CEP Panel (CC 2018) but it seems a big trouble.

Reading the Photoshop CC Javascript Reference is simple:

var newLayer = app.activeDocument.artLayers.add();

newLayer.kind = LayerKind.BLACKANDWHITE;

Why doesn't work? Nobody knows. Is it a bug?

I know that exist the Script Listener Plugin, but wouldn't use it because I would lose the control of my code.

I don't think that commercial panels are written using the Script Listener Plugin

Are there alternatives or suggestions?

This topic has been closed for replies.
Correct answer r-bin

This will not work. Read the documentation.

Try this.

add_bw_layer("BW Layer", 1,2,3,4,5,6);
add_bw_layer();
///////////////////////////////////////////////////////////////////////////////
function add_bw_layer(name, r,y,g,c,b,m)
    {
    try {
        var d = new ActionDescriptor();
        var r0 = new ActionReference();
        r0.putClass(stringIDToTypeID("adjustmentLayer"));
        d.putReference(stringIDToTypeID("null"), r0);
        var d1 = new ActionDescriptor();
        if (name) d1.putString(stringIDToTypeID("name" ), name);
        var d2 = new ActionDescriptor();
        if (r != undefined) d2.putInteger(stringIDToTypeID("red"),     r);
        if (y != undefined) d2.putInteger(stringIDToTypeID("yellow"),  y);
        if (g != undefined) d2.putInteger(stringIDToTypeID("green"),   g);
        if (c != undefined) d2.putInteger(stringIDToTypeID("cyan"),    c);
        if (b != undefined) d2.putInteger(stringIDToTypeID("blue"),    b);
        if (m != undefined) d2.putInteger(stringIDToTypeID("magenta"), m);
        d1.putObject(stringIDToTypeID("type"), stringIDToTypeID("blackAndWhite"), d2);
        d.putObject(stringIDToTypeID("using"), stringIDToTypeID("adjustmentLayer"), d1);
        executeAction(stringIDToTypeID("make"), d, DialogModes.NO);
        }
    catch (e) { alert(e); throw(e); }
    }

1 reply

R
r-binCorrect answer
Legend
August 12, 2018

This will not work. Read the documentation.

Try this.

add_bw_layer("BW Layer", 1,2,3,4,5,6);
add_bw_layer();
///////////////////////////////////////////////////////////////////////////////
function add_bw_layer(name, r,y,g,c,b,m)
    {
    try {
        var d = new ActionDescriptor();
        var r0 = new ActionReference();
        r0.putClass(stringIDToTypeID("adjustmentLayer"));
        d.putReference(stringIDToTypeID("null"), r0);
        var d1 = new ActionDescriptor();
        if (name) d1.putString(stringIDToTypeID("name" ), name);
        var d2 = new ActionDescriptor();
        if (r != undefined) d2.putInteger(stringIDToTypeID("red"),     r);
        if (y != undefined) d2.putInteger(stringIDToTypeID("yellow"),  y);
        if (g != undefined) d2.putInteger(stringIDToTypeID("green"),   g);
        if (c != undefined) d2.putInteger(stringIDToTypeID("cyan"),    c);
        if (b != undefined) d2.putInteger(stringIDToTypeID("blue"),    b);
        if (m != undefined) d2.putInteger(stringIDToTypeID("magenta"), m);
        d1.putObject(stringIDToTypeID("type"), stringIDToTypeID("blackAndWhite"), d2);
        d.putObject(stringIDToTypeID("using"), stringIDToTypeID("adjustmentLayer"), d1);
        executeAction(stringIDToTypeID("make"), d, DialogModes.NO);
        }
    catch (e) { alert(e); throw(e); }
    }
    A
    antonellot5396560Author
    Participant
    August 12, 2018

    Ok great, it works and I like it. But let me ask the big question: Where did you find in the documentation all the string constants you have written? I think the key is the method stringIDToTypeID but I'd like to find in the documentation all possible string values that it can accept. Example: If I would add a second layer, a hue/saturation or a channel mixer, where I can find the correct stringID? Thanks all

    R
    r-bin
    Legend
    August 12, 2018

    Constants can be obtained from ScriptingListenerJS.log. In addition, knowledge gradually comes with experience.
    You can also look at this script Script Events Listener

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