source: main/trunk/model-sites-dev/mozarts-laptop/collect/digital-music-stand/script/musicstand-open.js@ 30446

  var GUITopGap = 135;
  var GUIBotGap =  30;
  var GUILeftRightGap = 80;

  function openMusicStand(docid,pagePrefix,pageSuffix,numPages,maxPageWidth,maxPageHeight)
  {

    var screenWidth; 
    var screenHeight;

    var widthRatio;
    var heightRatio;
    
    var ratio;

    var pageWidth;
    var pageHeight;

    var musicStandWidth;
    var musicStandHeight;


    if (orientation == "landscape") {
        screenWidth = screen.height - GUILeftRightGap; // leave some wiggle room
        screenHeight = screen.width - GUITopGap - GUIBotGap; // leave some wiggle room


        widthRatio = screenWidth / maxPageWidth;
        heightRatio = screenHeight / maxPageHeight;
    
        ratio = (widthRatio<heightRatio) ? widthRatio : heightRatio;

        pageHeight = Math.round(maxPageWidth * ratio);
        pageWidth = Math.round(maxPageHeight * ratio);

        musicStandWidth = pageWidth + GUILeftRightGap;
        musicStandHeight = pageHeight + GUITopGap + GUIBotGap;
    
    }
    else {
        screenWidth = screen.width - GUILeftRightGap; // leave some wiggle room
        screenHeight = screen.height - GUITopGap - GUIBotGap; // leave some wiggle room

        widthRatio = screenWidth / maxPageWidth;
        heightRatio = screenHeight / maxPageHeight;
    
        ratio = (widthRatio<heightRatio) ? widthRatio : heightRatio;

        pageWidth = Math.round(maxPageWidth * ratio);
        pageHeight = Math.round(maxPageHeight * ratio);

        musicStandWidth = pageWidth + GUILeftRightGap;
        musicStandHeight = pageHeight + GUITopGap + GUIBotGap;

    }


    //var url = "_httpdocument_&d=" + docid + "&view=simple";
    var url = "?a=d&ed=1&book=off&c="+gs.cgiParams["c"]+"&d=" + docid + "&excerptid=gs-document-text&view=simple";
    var url = httpdocument + "&d=" + docid + "&excerptid=gs-document-text&view=simple";
    url += "&pagePrefix="+pagePrefix;
    url += "&pageSuffix="+pageSuffix;
    url += "&numPages="+numPages;
    url += "&pageWidth="+pageWidth+"&pageHeight="+pageHeight;
    url += "&scaleFactor="+ratio;


    var options = 'toolbar=0,menubar=0,location=0,directories=0,scrollbars=0,status=1';
    options += ',width='+musicStandWidth+',height='+musicStandHeight;

    window.open(url, 'musicstand', options);

    return false;
  }