Fireworks-iOS-ext/Export iOS App Icon.jsf at master · iliaskarim/Fireworks-iOS-ext · GitHub

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var dom = fw.getDocumentDOM();

var sizes = [
    // icon dimensions
    // https://developer.apple.com/library/ios/#documentation/UserExperience/Conceptual/MobileHIG/IconsImages/IconsImages.html

    //
    [22, 29],       //
    [44, 58],       //

    //
    [29, 29],       //
    [50, 50],       //
    [57, 57],       //
    [58, 58],       //
    [64, 64],       //
    [72, 72],       //
    [100, 100],     //
    [114, 114],     //
    [128, 128],     //
    [144, 144],     //
    [320, 320],     //
    [512, 512],     //
    [640, 640],     //
    [1024, 1024],
];

var maxSize = sizes[sizes.length - 1];

if (dom.width != maxSize[0] || dom.height != maxSize[1])
{   // Wrong dimensions
    // TODO: check all pages for correct size
    alert('Error: Master page must be 1024x1024px');
}
else
{
    // delete all other pages
    while (fw.getDocumentDOM().pagesCount > 1) {
        fw.getDocumentDOM().deletePageAt(1);
    }

    for (var i = 0; i < sizes.length - 1; i++) {
        // iterate over all required sizes
        var width = sizes[i][0];
        var height = sizes[i][1];

        // duplicate, resize, rename
        dom.duplicatePage(0);
        dom.changeCurrentPage(1);
        dom.setDocumentImageSize({left:0, top:0, right:width, bottom:height}, {pixelsPerUnit:72, units:'inch'}, true, -1);
        dom.setPageName(1, 'icon-' + width + 'x' + height);
    }

    dom.changeCurrentPage(0);

    fw.exportDocumentAs(null, null, null);
}