/**
 ******************************************************************************
 *
 * PIXOPOLIS BOOK DESIGNER
 *
 * Book page and cover creator
 *
 * (C) Kjell Post  kjepo@yahoo.com
 *
 ******************************************************************************
 */

isCS2 = function()  { return app.version.match(/^9\./); }; 

var ui
 = "dialog { \
	alignChildren: 'fill', \
	bookPanel: Panel { \
	    orientation: 'row', alignChildren: 'left', \
	    text: 'Book', \
            ddg: Group { \
	        orientation: 'row', alignChildren: 'left', \
    	    }, \
	}, \
	bg: Group { \
	    orientation: 'row', alignment: 'right', \
	    pageButton: Button { text: 'Blank page' }, \
	    coverButton: Button { text: 'Blank cover' }, \
	    closeButton: Button { text: 'Close' }, \
	} \
    }";
	

var pbdwin = new Window(ui);

if (isCS2()) {
	pbdwin.frameLocation = [200, 200];
}


var pageOptions = [];
pageOptions[ 0] = " 24 pages";
pageOptions[ 1] = " 32 pages";
pageOptions[ 2] = " 40 pages";
pageOptions[ 3] = " 48 pages";
pageOptions[ 4] = " 56 pages";
pageOptions[ 5] = " 64 pages";
pageOptions[ 6] = " 72 pages";
pageOptions[ 7] = " 80 pages";
pageOptions[ 8] = " 88 pages";
pageOptions[ 9] = " 96 pages"
pageOptions[10] = "104 pages";
pageOptions[11] = "112 pages";

var lightPageOption = " 20 pages";

var giantPageOptions = [];
giantPageOptions[ 0] = " 48 pages";
giantPageOptions[ 1] = " 50 pages";
giantPageOptions[ 2] = " 52 pages";
giantPageOptions[ 3] = " 54 pages";
giantPageOptions[ 4] = " 56 pages";
giantPageOptions[ 5] = " 58 pages";
giantPageOptions[ 6] = " 60 pages";
giantPageOptions[ 7] = " 62 pages";
giantPageOptions[ 8] = " 64 pages";
giantPageOptions[ 9] = " 66 pages";
giantPageOptions[10] = " 68 pages";
giantPageOptions[11] = " 70 pages";
giantPageOptions[12] = " 72 pages";
giantPageOptions[13] = " 74 pages";
giantPageOptions[14] = " 76 pages";
giantPageOptions[15] = " 78 pages";
giantPageOptions[16] = " 80 pages";
giantPageOptions[17] = " 82 pages";
giantPageOptions[18] = " 84 pages";
giantPageOptions[19] = " 86 pages";
giantPageOptions[20] = " 88 pages";
giantPageOptions[21] = " 90 pages";
giantPageOptions[22] = " 92 pages";
giantPageOptions[23] = " 94 pages";
giantPageOptions[24] = " 96 pages";
giantPageOptions[25] = " 98 pages";
giantPageOptions[26] = "100 pages";
giantPageOptions[27] = "102 pages";
giantPageOptions[28] = "104 pages";
giantPageOptions[29] = "106 pages";
giantPageOptions[30] = "108 pages";
giantPageOptions[31] = "110 pages";
giantPageOptions[32] = "112 pages";

var helixPageOptions = [];
helixPageOptions[ 0] = " 24 pages";
helixPageOptions[ 1] = " 36 pages";
helixPageOptions[ 2] = " 48 pages";
helixPageOptions[ 3] = " 60 pages";
helixPageOptions[ 4] = " 72 pages";
helixPageOptions[ 5] = " 84 pages";
helixPageOptions[ 6] = " 96 pages";

var BOOK_HARDCOVER = 0;
var BOOK_SQUARE    = 1;
var BOOK_LIGHT     = 2;
var BOOK_GIANT     = 3;
var BOOK_SOFTCOVER = 4;
var BOOK_POCKETHOR = 5;
var BOOK_POCKETVER = 6;
var BOOK_HELIX     = 7;
var BOOK_SQUAREXL  = 8;

var bookOptions = [];
bookOptions[BOOK_HARDCOVER] = "Hardcover";   
bookOptions[BOOK_SQUARE]    = "Square";              
bookOptions[BOOK_LIGHT]     = "Light";               
bookOptions[BOOK_GIANT]     = "GIANT";               
bookOptions[BOOK_SOFTCOVER] = "Softcover";           
bookOptions[BOOK_POCKETHOR] = "Pocket horizontal";   
bookOptions[BOOK_POCKETVER] = "Pocket vertical";     
bookOptions[BOOK_HELIX]     = "Helix";               

// Don't activate Square XL until correct spine information for 58, 60, 62 pages 
// are known.
// bookOptions[BOOK_SQUAREXL]  = "Square XL";

var pageWidth = [], pageHeight = [];
var coverWidth = [], coverHeight = [];

/**
 * Page width and height in pixels 
 */       

pageWidth[BOOK_HARDCOVER] = 4843; pageHeight[BOOK_HARDCOVER] = 3307;   
pageWidth[BOOK_SQUARE]    = 4843; pageHeight[BOOK_SQUARE]    = 2459;
pageWidth[BOOK_LIGHT]     = 4913; pageHeight[BOOK_LIGHT]     = 3307;   
pageWidth[BOOK_GIANT]     = 9520; pageHeight[BOOK_GIANT]     = 3307;   
pageWidth[BOOK_SOFTCOVER] = 3323; pageHeight[BOOK_SOFTCOVER] = 2252;   
pageWidth[BOOK_POCKETHOR] = 4843; pageHeight[BOOK_POCKETHOR] = 1370;   
pageWidth[BOOK_POCKETVER] = 2669; pageHeight[BOOK_POCKETVER] = 2551;   
pageWidth[BOOK_HELIX]     = 4654; pageHeight[BOOK_HELIX]     = 3319;   
pageWidth[BOOK_SQUAREXL]  = 6071; pageHeight[BOOK_SQUAREXL]  = 3307;


/* Cover width and height */		     
coverWidth[BOOK_HARDCOVER] =  5492; coverHeight[BOOK_HARDCOVER] = 3732;	     
coverWidth[BOOK_SQUARE]    =  5492; coverHeight[BOOK_SQUARE]    = 2846; // fixed
coverWidth[BOOK_LIGHT]     =  4913; coverHeight[BOOK_LIGHT]     = 3378;
coverWidth[BOOK_GIANT]     = 10642; coverHeight[BOOK_GIANT]     = 3732;
coverWidth[BOOK_SOFTCOVER] =  5031; coverHeight[BOOK_SOFTCOVER] = 3378;
coverWidth[BOOK_POCKETHOR] =  5492; coverHeight[BOOK_POCKETHOR] = 1772;
coverWidth[BOOK_POCKETVER] =  3319; coverHeight[BOOK_POCKETVER] = 2976;
coverWidth[BOOK_HELIX]     =  5409; coverHeight[BOOK_HELIX]     = 3732;
coverWidth[BOOK_SQUAREXL]  =  7075; coverHeight[BOOK_SQUAREXL]  = 3685;

/* Spine width in pixels for Softcover book */
var softinset = [];
softinset[ 24] =  35;
softinset[ 32] =  45;
softinset[ 40] =  52;
softinset[ 48] =  59;
softinset[ 56] =  69;
softinset[ 64] =  76;
softinset[ 72] =  83;
softinset[ 80] =  92;
softinset[ 88] =  99;
softinset[ 96] = 106;
softinset[104] = 116;
softinset[112] = 123;


var myPageOption = -1;
var myBookOption = -1;
var item;

/* ============================== */

pbdwin.bookPanel.booklist = pbdwin.bookPanel.add("dropdownlist", undefined, "test");

for (var i = 0; i < bookOptions.length; i++) {
  item = pbdwin.bookPanel.booklist.add('item', "" + bookOptions[i]);
}

pbdwin.bookPanel.booklist.onChange = function() {
  myBookOption = parseInt(this.selection);
  updatePage(pbdwin.bookPanel.pagelist, myBookOption);
};

pbdwin.bookPanel.booklist.selection = pbdwin.bookPanel.booklist.items[0];

/* ============================== */

pbdwin.bookPanel.pagelist = pbdwin.bookPanel.add("dropdownlist", undefined, "test");


pbdwin.bookPanel.pagelist.onChange = function() {
  myPageOption = parseInt(this.selection.toString());
};

activatePages(0, pageOptions.length);

/* ============================== */

pbdwin.bg.pageButton.onClick = function() {
  makeBlankPage(myBookOption);
  pbdwin.close(0);
}

pbdwin.bg.coverButton.onClick = function() {
  makeCover(myBookOption, myPageOption);
  pbdwin.close(0);
}

pbdwin.bg.closeButton.onClick = function() {
  pbdwin.close(0);
}

pbdwin.show();

/**
 *  Real code...
 *
 */

function activatePages(lo, hi) {
  var p = pbdwin.bookPanel.pagelist;

  for (var i = lo; i < hi; i++) {
    item = p.add('item', "" + pageOptions[i]);
  }
  p.selection = p.items[0];

}

function activateLightPage() {
  var p = pbdwin.bookPanel.pagelist;

  item = p.add('item', "" + lightPageOption);
  p.selection = p.items[0];
}

function activateGiantPages(lo, hi) {
  var p = pbdwin.bookPanel.pagelist;

  for (var i = lo; i < hi; i++) {
    item = p.add('item', "" + giantPageOptions[i]);
  }
  p.selection = p.items[0];
}

function activateHelixPages(lo, hi) {
  var p = pbdwin.bookPanel.pagelist;

  for (var i = lo; i < hi; i++) {
    item = p.add('item', "" + helixPageOptions[i]);
  }
  p.selection = p.items[0];
}


function updatePage(pagelist, booknr) {
  pagelist.removeAll();

  switch (booknr) {
  case BOOK_HARDCOVER:
  case BOOK_SQUARE:
  case BOOK_SOFTCOVER:
  case BOOK_POCKETHOR:
  case BOOK_POCKETVER:
    activatePages(0, pageOptions.length);
    break;
  case BOOK_LIGHT:
    activateLightPage();
    break;
  case BOOK_GIANT:
  case BOOK_SQUAREXL:		/* Square XL has page options like Giant */
    activateGiantPages(0, giantPageOptions.length);
    break;
  case BOOK_HELIX:
    activateHelixPages(0, helixPageOptions.length);
    break;
  }
}



function verticalGuide(offset) {
  var id5 = charIDToTypeID( "Mk  " );
    var desc2 = new ActionDescriptor();
    var id6 = charIDToTypeID( "Nw  " );
        var desc3 = new ActionDescriptor();
        var id7 = charIDToTypeID( "Pstn" );
        var id8 = charIDToTypeID( "#Pxl" );
        desc3.putUnitDouble( id7, id8, offset);
        var id9 = charIDToTypeID( "Ornt" );
        var id10 = charIDToTypeID( "Ornt" );
        var id11 = charIDToTypeID( "Vrtc" );
        desc3.putEnumerated( id9, id10, id11 );
    var id12 = charIDToTypeID( "Gd  " );
    desc2.putObject( id6, id12, desc3 );
    executeAction( id5, desc2, DialogModes.NO );
}

function horizontalGuide(offset) {
  var id13 = charIDToTypeID( "Mk  " );
    var desc4 = new ActionDescriptor();
    var id14 = charIDToTypeID( "Nw  " );
        var desc5 = new ActionDescriptor();
        var id15 = charIDToTypeID( "Pstn" );
        var id16 = charIDToTypeID( "#Pxl" );
        desc5.putUnitDouble( id15, id16, offset);
        var id17 = charIDToTypeID( "Ornt" );
        var id18 = charIDToTypeID( "Ornt" );
        var id19 = charIDToTypeID( "Hrzn" );
        desc5.putEnumerated( id17, id18, id19 );
    var id20 = charIDToTypeID( "Gd  " );
    desc4.putObject( id14, id20, desc5 );
    executeAction( id13, desc4, DialogModes.NO );
}

function makeBlankPage(bookIndex) {
  var ru = app.preferences.rulerUnits;
  app.preferences.rulerUnits = Units.PIXELS;
  var w = pageWidth[bookIndex];
  var h = pageHeight[bookIndex];
  var inset3mm = 35;		/* 3mm = 35px in 300 dpi */
  
  app.documents.add(w, h, 300,  "Page", NewDocumentMode.RGB, DocumentFill.WHITE); 

  switch (bookIndex) {
  case BOOK_SOFTCOVER:
    verticalGuide(inset3mm); 
    verticalGuide(w - inset3mm);
    horizontalGuide(inset3mm); 
    horizontalGuide(h - inset3mm);
    verticalGuide(w/2 - inset3mm);
    verticalGuide(w/2 + inset3mm);
    break;
  case BOOK_HELIX:
    verticalGuide(inset3mm); 
    verticalGuide(w - inset3mm);
    horizontalGuide(inset3mm); 
    horizontalGuide(h - inset3mm);
    verticalGuide(w/2 - 189/2);
    verticalGuide(w/2 + 189/2);
    verticalGuide(w/2 - 70/2);
    verticalGuide(w/2 + 70/2);
    break;
  default:
    verticalGuide(inset3mm); 
    verticalGuide(w - inset3mm); 
    verticalGuide(w/2);
    horizontalGuide(inset3mm); 
    horizontalGuide(h - inset3mm);
    break;
  }

  app.preferences.rulerUnits = ru;
}

function makeCover(bookIndex, pages) {
  var ru = app.preferences.rulerUnits;
  app.preferences.rulerUnits = Units.PIXELS;
  var w = coverWidth[bookIndex];
  var h = coverHeight[bookIndex];
  var inset16mm = 188; 		/* 16mm = 188px in 300 dpi */
  var inset3mm = 35;		/*  3mm =  35px in 300 dpi */
  
  app.documents.add(w, h, 300,  "Cover", NewDocumentMode.RGB, DocumentFill.WHITE); 

  switch (bookIndex) {
  case BOOK_HARDCOVER:
  case BOOK_SQUARE:
  case BOOK_POCKETHOR:
  case BOOK_POCKETVER:
    verticalGuide(inset16mm); 
    verticalGuide(w - inset16mm);
    horizontalGuide(inset16mm); 
    horizontalGuide(h - inset16mm);
    if (pages <= 56) {
      verticalGuide(w/2 - 83/2);
      verticalGuide(w/2 + 83/2);
    } else {
      verticalGuide(w/2 - 130/2);
      verticalGuide(w/2 + 130/2);
    }
    break;
  case BOOK_LIGHT:
    verticalGuide(inset3mm);
    verticalGuide(w - inset3mm);
    horizontalGuide(inset3mm);
    horizontalGuide(h - inset3mm);
    verticalGuide(w/2);
    break;
  case BOOK_GIANT:
  case BOOK_SQUAREXL:
    verticalGuide(inset16mm); 
    verticalGuide(w - inset16mm);
    horizontalGuide(inset16mm); 
    horizontalGuide(h - inset16mm);
    if (pages <= 56) {
      verticalGuide(w/2 - 83/2);
      verticalGuide(w/2 + 83/2);
    } else {
      verticalGuide(w/2 - 130/2);
      verticalGuide(w/2 + 130/2);
    }
    verticalGuide(w/2 - 600/2);
    verticalGuide(w/2 + 600/2);
    break;
  case BOOK_SOFTCOVER:
    verticalGuide(inset3mm);
    verticalGuide(w - inset3mm);
    horizontalGuide(inset3mm);
    horizontalGuide(h - inset3mm);
    verticalGuide(w/2 - softinset[pages]/2);
    verticalGuide(w/2 + softinset[pages]/2);
    break;
  case BOOK_HELIX:
    verticalGuide(inset16mm); 
    verticalGuide(w - inset16mm);
    horizontalGuide(inset16mm); 
    horizontalGuide(h - inset16mm);
    verticalGuide(w/2 - 177/2);
    verticalGuide(w/2 + 177/2);
    break;
    
  }
  app.preferences.rulerUnits = ru;
}