Output iOS Icons.jsx

// Output iOS Icons.jsx
// 2012 Todd Linkner
// License: none (public domain)
// v1.1
//
// This script is for Photoshop CS6. It outputs iOS icons of the following 
// sizes from a source 1024px x 1024px PSD
//
// iOS7 App Icon:
//	[name][email protected]	(120px x 120px)
//
// iOS7 App Icon:
//	[name][email protected]	(152px x 152px)
//	[name]-76.png		(76px x 76px)
//
// iPhone App Icon:
//	[name][email protected]	(114px x 114px)
//	[name]-57.png		(57px x 57px)
//
// iPhone Settings/Search Results:
// 	[naem][email protected]	(58px x 58px)
// 	[name]-29.png		(29px x 29px)
//
// iPad App Icon:
// 	[name][email protected]	(144px x 144px)
// 	[name]-72.png		(72px x 72px)
//
// iPad Settings/Search Results:
// 	[naem][email protected]	(100px x 100px)
// 	[name]-50.png		(50px x 50px)
// 
// iTunes:
// 	[name]-512.png		(512px x 512px)
// 	[name][email protected]	(1024px x 1024px)

/*
// BEGIN__HARVEST_EXCEPTION_ZSTRING
<javascriptresource>
<name>$$$/JavaScripts/OutputiOSIcons/MenuAlt=Output iOS Icons</name>
<category>mobile</category>
</javascriptresource>
// END__HARVEST_EXCEPTION_ZSTRING
*/

// bring Photoshop into focus
#target Photoshop CS6

main();

function main() {

    alert("This script outputs iPhone, iPad, and iTunes icons, "
        + "from a 1024px x 1024px PSD source file.\r\r");

    // Ask user for input folder
	var inputFile = File.openDialog("Select a 1024px x 1024px PSD file","PSD File:*.psd");
	if (inputFile == null) throw "No file selected. Exting script.";

	// Open file
	open(inputFile);

    // Set ruler untis to pixels
    app.preferences.typeUnits = TypeUnits.PIXELS

    // iOS 7 Icons
	resize(120,'@2x');
	resize(152,'@2x');
	resize(76);
    // iPhone App Icon:
	resize(114,'@2x');
	resize(57);
    // iPhone Settings/Search Results:
	resize(58,'@2x');
	resize(29);
    // iPad App Icon:
	resize(144,'@2x');
	resize(72);
    // iPad Settings/Search Results:
	resize(100,'@2x');
	resize(50);
    // iTunes:
	resize(1024,'@2x');
	resize(512);

    // Clean up
    app.activeDocument.close(SaveOptions.DONOTSAVECHANGES);
    alert("Done!");
}

function resize(size,append) {
     // Setup file name
    var pname = app.activeDocument.path + "/";
    var fname = app.activeDocument.name;
    n = fname.lastIndexOf(".");
    if (n > 0) {
        basename = fname.substring(0, n);
         if (undefined != append) {
            fname = basename+"-"+(size/2)+append+".png";
        } else {
            fname = basename+"-"+size+".png";
        }
   }

   // Set export options
    var opts, file;
    opts = new ExportOptionsSaveForWeb();
    opts.format = SaveDocumentType.PNG;
    opts.PNG8 = false; 
    opts.transparency = true;
    opts.interlaced = 0;
    opts.includeProfile = false;
    opts.optimized = true;

    // Duplicate, resize and export
    var tempfile = app.activeDocument.duplicate();
    tempfile.resizeImage(size+"px",size+"px");
    file = new File(pname+fname);
    tempfile.exportDocument(file, ExportType.SAVEFORWEB, opts);
    tempfile.close(SaveOptions.DONOTSAVECHANGES);
}