How to set layer color property via script?

Question

I'm looking for a way to set a layer's UI color property via script (see attached). Any help would be greatly appreciated!

Answer 1

jrapczak2 wrote:
Uhm.. wow. That's crazy complicated
It is even more complicated to work with multi-selected layers.
if( app.documents.length > 0 && versionCheck()  ){
     app.activeDocument.suspendHistory("Set Layer's Color", 'changeLayersColor()');
function versionCheck()  { return app.version.match(/1[1|2]./) >= 11; };
function changeLayersColor(){
     function setActiveLayerColor( color ) {
          var desc = new ActionDescriptor();
               var ref = new ActionReference();
               ref.putEnumerated( charIDToTypeID('Lyr '), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') );
          desc.putReference( charIDToTypeID('null'), ref );
               var colorEnumDesc = new ActionDescriptor();
               colorEnumDesc.putEnumerated( charIDToTypeID('Clr '), charIDToTypeID('Clr '), color );
          desc.putObject( charIDToTypeID('T   '), charIDToTypeID('Lyr '), colorEnumDesc );
          executeAction( charIDToTypeID('setd'), desc, DialogModes.NO );
     function getSelectedLayersIdx(){
               var selectedLayers = new Array;
               var ref = new ActionReference();
               ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
               var desc = executeActionGet(ref);
               if( desc.hasKey( stringIDToTypeID( 'targetLayers' ) ) ){
                    desc = desc.getList( stringIDToTypeID( 'targetLayers' ));
                     var c = desc.count
                     var selectedLayers = new Array();
                     for(var i=0;i<c;i++){
                         try{
                              activeDocument.backgroundLayer;
                              selectedLayers.push(  desc.getReference( i ).getIndex() );
                         }catch(e){
                              selectedLayers.push(  desc.getReference( i ).getIndex()+1 );
                }else{
                    var ref = new ActionReference();
                    ref.putProperty( charIDToTypeID("Prpr") , charIDToTypeID( "ItmI" ));
                    ref.putEnumerated( charIDToTypeID("Lyr "), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") );
                    try{
                         activeDocument.backgroundLayer;
                         selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" ))-1);
                    }catch(e){
                         selectedLayers.push( executeActionGet(ref).getInteger(charIDToTypeID( "ItmI" )));
               return selectedLayers;
     function makeActiveByIndex( idx, visible ){
          if( idx.constructor != Array ) idx = [ idx ];
          for( var i = 0; i < idx.length; i++ ){
               var desc = new ActionDescriptor();
               var ref = new ActionReference();
               ref.putIndex(charIDToTypeID( "Lyr " ), idx[i] );
               desc.putReference( charIDToTypeID( "null" ), ref );
               if( i > 0 ) {
                    var idselectionModifier = stringIDToTypeID( "selectionModifier" );
                    var idselectionModifierType = stringIDToTypeID( "selectionModifierType" );
                    var idaddToSelection = stringIDToTypeID( "addToSelection" );
                    desc.putEnumerated( idselectionModifier, idselectionModifierType, idaddToSelection );
               desc.putBoolean( charIDToTypeID( "MkVs" ), visible );
               executeAction( charIDToTypeID( "slct" ), desc, DialogModes.NO );
     var colors = ['None','Red','Orange','Yellow','Green','Blue','Violet','Grey'];
     var colorIDs = [charIDToTypeID('None'),
                              charIDToTypeID( "Rd  " ),
                              charIDToTypeID( "Orng" ),
                              charIDToTypeID( "Ylw " ),
                              charIDToTypeID( "Grn " ),
                              charIDToTypeID( "Bl  " ),
                              charIDToTypeID( "Vlt " ),
                              charIDToTypeID( "Gry " )];
     var dlg = new Window( 'dialog', 'Change Layer Color' );
     dlg.ddColors= dlg.add("dropdownlist", undefined,  colors);
     dlg.ddColors.preferredSize.width = 100;
     dlg.ddColors.items[0].selected = true;
     dlg.ok = dlg.add('button',undefined,'Ok');
     dlg.cancel = dlg.add('button',undefined,'Cancel');
     var results = dlg.show();
     if( results == 1 ){
          var selectedLayers =  getSelectedLayersIdx();
          for( var l=0;l<selectedLayers.length;l++ ){
               makeActiveByIndex( selectedLayers[l], false );
               setActiveLayerColor( colorIDs[dlg.ddColors.selection.index] );
          makeActiveByIndex( selectedLayers,false );