comp_with_text.jsx

/**
 * @author fabiantheblind
 * @description should create comps from a csv file
 *
 *
 * @todo check if it works
 */
comp_from_text();
function comp_from_text() {

  var meta = {
    w: 1280,
    h: 720,
    aspect: 1,
    dur: 20,
    rate: 25,
    data: null
  };

  meta.data = get_data();

  if(meta.data === null) {
    alert('Data is null');
    return;
  }

  app.beginUndoGroup('comp from text');
  var proj = app.project;
  var curComp = proj.activeItem;
  if (!curComp || !(curComp instanceof CompItem)) {
    alert('noComp');
    return;
  }


  for(var r = 0; r < meta.data.fields.length; r++) {

    var nc = proj.items.addComp(
     'scene ' + String(r + 1),
     meta.w,
     meta.h,
     meta.aspect,
     meta.dur,
     meta.rate);
  // for(var f = 0; f < meta.data.fields.length;f++){
  //       var tl = nc.addText(meta.data.fields[f].value);
  //   }
    curComp.layers.add(nc, meta.dur);
  }


  app.endUndoGroup();
}


function get_data () {
       // alert(this.text);
  var textLines = read_in_txt();
  var rawdata = null;
  if(textLines !== null) {
            // markers = lines_to_markers(textLines);
    var res = textlines_to_data(textLines, ',');
            // alert(res.toSource());
    rawdata = res;
            // reading the textlines worked if it wasnt null
    if(rawdata !== null) {

// alert(rawdata.fields[0].field + " "+rawdata.fields[0].value);
      return rawdata;


    }

    return null;
// end of else textLines !== null
  }

}
/**
 * gets lines of strings and creates the data we need from
 * CSV Header and content
 * @param  {Array of String} textLines are , or \t separeted values
 * @return {Object}
 */
function textlines_to_data(textLines, separator) {

  var data = {};
  data.fields = [];
  data.keys = [];

  for(var i = 0; i < textLines.length; i++) {
    var line = [];
    var line_arr = split_csv(separator, textLines[i]);
    if(i === 0) {
      for(var j = 0; j < line_arr.length; j++) {
        data.keys[j] = line_arr[j];
      }

    }else{
      var obj = {};
      for(var k = 0; k < line_arr.length; k++) {

                // if(k !== line_arr.length -1){
                //     obj_str += 'field_' + k + ':"' + line_arr[k] + '",';
                // }else{
                //     obj_str += 'field_' + k + ':"' + line_arr[k] + '"';
                // }
        line.push({field: k, value: line_arr[k]});
      } // end k loop
    } // end else
    data.fields.push(line);
  } // end i loop

  return data;
}

function split_textline(line) {
    // var arr = line.split("\t");
  var arr = line.split(/[,\t]/);

  return arr;
}

/**
 * This is a string prototype function
 * found here http://www.greywyvern.com/?post=258
 * @param  {String} sep is the separator we use only ,
 * @return {Array}     returns an Array of strings
 */
// String.prototype.splitCSV = function(sep) {
//   for (var foo = this.split(sep = sep || ","), x = foo.length - 1, tl; x >= 0; x--) {
//     if (foo[x].replace(/"\s+$/, '"').charAt(foo[x].length - 1) == '"') {
//       if ((tl = foo[x].replace(/^\s+"/, '"')).length > 1 && tl.charAt(0) == '"') {
//         foo[x] = foo[x].replace(/^\s*"|"\s*$/g, '').replace(/""/g, '"');
//       } else if (x) {
//         foo.splice(x - 1, 2, [foo[x - 1], foo[x]].join(sep));
//       } else foo = foo.shift().split(sep).concat(foo);
//     } else foo[x].replace(/""/g, '"');
//   } return foo;
// };


// Dont use prototypes?
// for the time beeing YES
// Makes problems with other scripts
// or we need to use a unique prefix! like ftb_splitCSV

function split_csv (sep, the_string) {

  for (var foo = the_string.split(sep = sep || ','), x = foo.length - 1, tl; x >= 0; x--) {
    if (foo[x].replace(/"\s+$/, '"').charAt(foo[x].length - 1) == '"') {
      if ((tl = foo[x].replace(/^\s+"/, '"')).length > 1 && tl.charAt(0) == '"') {
        foo[x] = foo[x].replace(/^\s*"|"\s*$/g, '').replace(/""/g, '"');
      } else if (x) {
        foo.splice(x - 1, 2, [foo[x - 1], foo[x]].join(sep));
      } else {
        foo = foo.shift().split(sep).concat(foo);
      }
    } else {
      foo[x].replace(/""/g, '"');
    }
  }
  return foo;
}


/**
 * this reads in a file
 * line by line
 * @return {Array of String}
 */
function read_in_txt() {

  var textFile = File.openDialog('Select a text file to import.', '*.*', false);


  var textLines = [];
  if (textFile !== null) {
    textFile.open('r', undefined, undefined);
    while (!textFile.eof) {
      textLines[textLines.length] = textFile.readln();
    }

    textFile.close();
  }

  if(!textLines) {
    alert('ERROR Reading file');
    return null;
  }

  return textLines;

}