Photoshop Scripting Artboard Size Values

[JustinCarroll]

Is it possible to get the width and height values of an artboard's size with Photoshop scripting? And is it possible to change the size of an artboard with scripting?

[Stephen_A_Marsh]

As this is outside of the standard DOM, I believe that you would need to install and use the ScriptingListener plug-in:

https://helpx.adobe.com/au/photoshop/kb/downloadable-plugins-and-content.html#ScriptingListenerplugi...

If you search around the forum I'm sure that you will find code to help in your project.

[Chuck Uebele · Accepted solution]

Here is code to get the artboard's dimentions. You have to have the artboard selected.

#target photoshop 
var doc = activeDocument;
var aLayer = doc.activeLayer
    ab = artboard_rectangle(aLayer);
    aW = ab[2]-ab[0];
    aH = ab[3]-ab[1];
alert('artboard width = ' + aW +'--'+ 'artboard height = ' + aH)

function artboard_rectangle(layer)
    {
    try {        
        var r    = new ActionReference();    
        r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("artboard"));
        if (layer) r.putIdentifier(stringIDToTypeID("layer"), layer.id);
        else       r.putEnumerated(stringIDToTypeID("layer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
        var d = executeActionGet(r).getObjectValue(stringIDToTypeID("artboard")).getObjectValue(stringIDToTypeID("artboardRect"));
        var bounds = new Array();
        bounds[0] = d.getUnitDoubleValue(stringIDToTypeID("left"));
        bounds[1] = d.getUnitDoubleValue(stringIDToTypeID("top")); 
        bounds[2] = d.getUnitDoubleValue(stringIDToTypeID("right"));
        bounds[3] = d.getUnitDoubleValue(stringIDToTypeID("bottom"));                                

        return bounds;
        }
    catch(e) { alert(e); }
    }

[JustinCarroll]

This works! Thanks for grabbing this.

[Chuck Uebele]

Just tried to change the size by recording the code with ScriptListener. I got the code, but changing the values does odd things to the size. I'm not sure what's going on.

[Stephen_A_Marsh]

Yeah, I hate trying to script artboards! 

[Stephen_A_Marsh]

@JustinCarroll - Do you have an anchor point that you wish to change the artboard around? Middle centre, upper left etc?

[JustinCarroll]

No. Wondering if I could change the Artboard size was curiousity. Thanks!

[Stephen_A_Marsh]

@JustinCarroll - Both of your questions have been answered in the affirmative by @Chuck Uebele and myself with working code examples.

[Stephen_A_Marsh · Accepted solution]

ScriptingListener changing artboard size via Properties panel resizes from the fixed upper left... Resizing using the artboard tool (v) is "interactive"...

Combining the code from @Chuck Uebele with some further code:

#target photoshop 

var doc = activeDocument;
var aLayer = doc.activeLayer;
var ab = artboard_rectangle(aLayer);
var aW = ab[2]-ab[0];
var aH = ab[3] - ab[1];

//////////

// Add 100px to current artboard width & height
var aWresize = aW + 100;
var aHresize = aH + 100;

//////////

resizeArtboard(0, 0, aHresize, aWresize, "", 255, 255, 255, 1);

//////////

function artboard_rectangle(layer)
    {
    try {        
        var r    = new ActionReference();    
        r.putProperty(stringIDToTypeID("property"), stringIDToTypeID("artboard"));
        if (layer) r.putIdentifier(stringIDToTypeID("layer"), layer.id);
        else       r.putEnumerated(stringIDToTypeID("layer"), stringIDToTypeID("ordinal"), stringIDToTypeID("targetEnum"));
        var d = executeActionGet(r).getObjectValue(stringIDToTypeID("artboard")).getObjectValue(stringIDToTypeID("artboardRect"));
        var bounds = new Array();
        bounds[0] = d.getUnitDoubleValue(stringIDToTypeID("left"));
        bounds[1] = d.getUnitDoubleValue(stringIDToTypeID("top")); 
        bounds[2] = d.getUnitDoubleValue(stringIDToTypeID("right"));
        bounds[3] = d.getUnitDoubleValue(stringIDToTypeID("bottom"));                                

        return bounds;
        }
    catch(e) { alert(e); }
}

//////////

function resizeArtboard(top, left, bottom, right, artboardPresetName, red, grain, blue, artboardBackgroundType) {
	var s2t = function (s) {
		return app.stringIDToTypeID(s);
	};
	var descriptor = new ActionDescriptor();
	var descriptor2 = new ActionDescriptor();
	var descriptor3 = new ActionDescriptor();
	var descriptor4 = new ActionDescriptor();
	var list = new ActionList();
	var reference = new ActionReference();
	reference.putEnumerated( s2t( "layer" ), s2t( "ordinal" ), s2t( "targetEnum" ));
	descriptor.putReference( s2t( "null" ), reference );
	descriptor3.putDouble( s2t( "top" ), top );
	descriptor3.putDouble( s2t( "left" ), left );
	descriptor3.putDouble( s2t( "bottom" ), bottom );
	descriptor3.putDouble( s2t( "right" ), right );
	descriptor2.putObject( s2t( "artboardRect" ), s2t( "classFloatRect" ), descriptor3 );
	descriptor2.putList( s2t( "guideIDs" ), list );
	descriptor2.putString( s2t( "artboardPresetName" ), artboardPresetName );
	descriptor4.putDouble( s2t( "red" ), red );
	descriptor4.putDouble( s2t( "grain" ), grain );
	descriptor4.putDouble( s2t( "blue" ), blue );
	descriptor2.putObject( s2t( "color" ), s2t( "RGBColor" ), descriptor4 );
	descriptor2.putInteger( s2t( "artboardBackgroundType" ), artboardBackgroundType );
	descriptor.putObject( s2t( "artboard" ), s2t( "artboard" ), descriptor2 );
	executeAction( s2t( "editArtboardEvent" ), descriptor, DialogModes.NO );
}