Count lines in a paragraph

[den1s]

I'm finally stacked with the last portion of the script and have to ask you guys.

Task:

I'm reading 2 bits of information from the text file, title and description. And placing those to the document, one after another.

Problem:

I need to place description right after title, having small N pixels margin. Originally title has one string, but I iterate this process and read from different text files, so some titles are in 2 strings, and I have no idea how to find out where to place description. Here is how it should look.

And here is my code:

function createTexts() {
  createText(250, 100, 110, titles[count_psd-1], 1);
  createText(200, 50, 250, descriptions[count_psd-1], 0);

  saveImage();
}

function createText(h, fontSize, hPosition, content, light) {
   var doc = app.activeDocument;
   var TextLayer = doc.artLayers.add();
   TextLayer.kind = LayerKind.TEXT;
   var txtRef = TextLayer.textItem;
  txtRef.kind = TextType.PARAGRAPHTEXT;
  txtRef.antiAliasMethod = AntiAlias.SMOOTH;
  txtRef.width = 1050;
  txtRef.height = h;
   if (lang==0) {
   if (light==1){
  txtRef.font = "HelveticaNeue-UltraLight";
   } else {
  txtRef.font = "HelveticaNeue";
   }
   } else {
  txtRef.font = "MicrosoftSansSerif";
   }
  txtRef.contents = content;
  txtRef.size = fontSize;
   var textPosition = [75,hPosition];
  txtRef.position = textPosition;
}

So basically any other solution that will solve my problem will work.

Thanks in advance!

UPD: update the code slightly to have it more appealing.

[nvkzNemo]

You can't know the number of lines in a paragraph,  but you can guess...

var text1 = 'Very very longest title ever ever ever';
var text2 = 'Description';


// The maximum number of characters per line
// Depends on the selected font and font size
var maxChar = 20;


function createTexts() {
  var titleHeight = createText(125, 100, 110, text1);
  createText(100, 50, titleHeight+100, text2);
}

function createText(h, fontSize, hPosition, content) {
   var doc = app.activeDocument;
   var TextLayer = doc.artLayers.add();
   TextLayer.kind = LayerKind.TEXT;
   var txtRef = TextLayer.textItem;
  txtRef.kind = TextType.PARAGRAPHTEXT;
  txtRef.antiAliasMethod = AntiAlias.SMOOTH;
  txtRef.width = 1050;
  txtRef.contents = content;
  txtRef.size = fontSize;
  var textPosition = [75,hPosition];
  txtRef.position = textPosition;
  var text = txtRef.contents;

  //==========================
  var ost = content.length % maxChar;
  var k = (content.length - ost) / maxChar;
  txtRef.height = h*(k+1);

  return txtRef.height;
}


createTexts();

[matias.kiviniemi]

Taking above even further, you could first add just one characters and establish base line height estimate if you can't have it static. You could even keep adding chars until you get a wrap to estimate both line height and line space.

height_after_wrap = 2*original_height+line_space  <=> line_space = height_after_wrap -  2*original_height