使用javascript获取选定的图层或组图层阵列(Photoshop CS4) [英] Getting Selected Layer or group layers array using javascript (Photoshop CS4)

问题描述

K基本上，我需要编写一个photoshop脚本，该脚本遍历所选图层并检索有关它们的一些信息.

K basically I need to write a photoshop script that iterates through the selected layers and retrieve some information about them.

如果我可以得到一个选定图层的数组，我会很好的，我知道如何做剩下的事情，但是要获得该数组本身是一件令人头疼的事.

if I can get an array of the selected layers I will be fine, I know how to do the rest, but getting that array is been a headache on its own.

我知道文档中包含"activeLayers"之类的东西，但是我迷路了如何处理级别和子级别层.

I know the document holds something like "activeLayers" but I get lost how to deal with levels and sublevel layers.

所有图层都在一个组中，所以如果方便的话，如果我可以将一组中的每个图层都变得很棒:D

All the layers are in a group, so if its easier, if I can get every layer in a group that would be great too :D

谢谢你的提示.

推荐答案

Bravo的代码可以正常工作，只是在未选择任何层时它会因错误而失败，因此我对其进行了调整以消除错误并仅返回一个空数组:

Bravo's code works except it fails with an error when no layers are selected, so I tweaked it to remove the error and simply return an empty array:

function getSelectedLayers(){
  var resultLayers=new Array();
  try{
    var idGrp = stringIDToTypeID( "groupLayersEvent" );
    var descGrp = new ActionDescriptor();
    var refGrp = new ActionReference();
    refGrp.putEnumerated(charIDToTypeID( "Lyr " ),charIDToTypeID( "Ordn" ),charIDToTypeID( "Trgt" ));
    descGrp.putReference(charIDToTypeID( "null" ), refGrp );
    executeAction( idGrp, descGrp, DialogModes.NO );
    for (var ix=0;ix<app.activeDocument.activeLayer.layers.length;ix++){resultLayers.push(app.activeDocument.activeLayer.layers[ix])}
    var id8 = charIDToTypeID( "slct" );
    var desc5 = new ActionDescriptor();
    var id9 = charIDToTypeID( "null" );
    var ref2 = new ActionReference();
    var id10 = charIDToTypeID( "HstS" );
    var id11 = charIDToTypeID( "Ordn" );
    var id12 = charIDToTypeID( "Prvs" );
    ref2.putEnumerated( id10, id11, id12 );
    desc5.putReference( id9, ref2 );
    executeAction( id8, desc5, DialogModes.NO );
  } catch (err) { }
  return resultLayers;
}   
$.writeln(getSelectedLayers());`

仅将代码包装在try/catch块中是行不通的，所以我也进行了更改:

Simply wrapping the code in a try/catch block didnt work, so I also changed:

executeAction( idGrp, descGrp, DialogModes.ALL );

到

executeAction( idGrp, descGrp, DialogModes.NO );

从而消除了运行时错误.

and that made the runtime error go away.

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