HOME

VectorCanvas.prototype.pathSvgToVml = function (path) {
  var result = '';
  var cx = 0, cy = 0, ctrlx, ctrly;

  return path.replace(/([MmLlHhVvCcSs])((?:-?(?:\d+)?(?:\.\d+)?,?\s?)+)/g, function (segment, letter, coords) {
    coords = coords.replace(/(\d)-/g, '$1,-').replace(/\s+/g, ',').split(',');
    if (!coords[0]) {
      coords.shift();
    }

    for (var i = 0, l = coords.length; i < l; i++) {
      coords[i] = Math.round(100 * coords[i]);
    }

    switch (letter) {
      case 'm':
        cx += coords[0];
        cy += coords[1];
        result = 't' + coords.join(',');
        break;

      case 'M':
        cx = coords[0];
        cy = coords[1];
        result = 'm' + coords.join(',');
        break;

      case 'l':
        cx += coords[0];
        cy += coords[1];
        result = 'r' + coords.join(',');
        break;

      case 'L':
        cx = coords[0];
        cy = coords[1];
        result = 'l' + coords.join(',');
        break;

      case 'h':
        cx += coords[0];
        result = 'r' + coords[0] + ',0';
        break;

      case 'H':
        cx = coords[0];
        result = 'l' + cx + ',' + cy;
        break;

      case 'v':
        cy += coords[0];
        result = 'r0,' + coords[0];
        break;

      case 'V':
        cy = coords[0];
        result = 'l' + cx + ',' + cy;
        break;

      case 'c':
        ctrlx = cx + coords[coords.length - 4];
        ctrly = cy + coords[coords.length - 3];
        cx += coords[coords.length - 2];
        cy += coords[coords.length - 1];
        result = 'v' + coords.join(',');
        break;

      case 'C':
        ctrlx = coords[coords.length - 4];
        ctrly = coords[coords.length - 3];
        cx = coords[coords.length - 2];
        cy = coords[coords.length - 1];
        result = 'c' + coords.join(',');
        break;

      case 's':
        coords.unshift(cy - ctrly);
        coords.unshift(cx - ctrlx);
        ctrlx = cx + coords[coords.length - 4];
        ctrly = cy + coords[coords.length - 3];
        cx += coords[coords.length - 2];
        cy += coords[coords.length - 1];
        result = 'v' + coords.join(',');
        break;

      case 'S':
        coords.unshift(cy + cy - ctrly);
        coords.unshift(cx + cx - ctrlx);
        ctrlx = coords[coords.length - 4];
        ctrly = coords[coords.length - 3];
        cx = coords[coords.length - 2];
        cy = coords[coords.length - 1];
        result = 'c' + coords.join(',');
        break;

      default:
        break;
    }

    return result;

  }).replace(/z/g, '');
};