awv3/plugins/sketcher/handlers/arctangent.js

⚡ AWV3 embedded CAD

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});

var _getIterator2 = require('babel-runtime/core-js/get-iterator');

var _getIterator3 = _interopRequireDefault(_getIterator2);

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _get2 = require('babel-runtime/helpers/get');

var _get3 = _interopRequireDefault(_get2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _geomutils = require('../geomutils');

var _draw = require('./draw');

var _draw2 = _interopRequireDefault(_draw);

var _point = require('./point');

var _point2 = _interopRequireDefault(_point);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var ArcTangentHandler = function (_DrawHandler) {
    (0, _inherits3.default)(ArcTangentHandler, _DrawHandler);

    function ArcTangentHandler() {
        var _ref;

        var _temp, _this, _ret;

        (0, _classCallCheck3.default)(this, ArcTangentHandler);

        for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
            args[_key] = arguments[_key];
        }

        return _ret = (_temp = (_this = (0, _possibleConstructorReturn3.default)(this, (_ref = ArcTangentHandler.__proto__ || (0, _getPrototypeOf2.default)(ArcTangentHandler)).call.apply(_ref, [this].concat(args))), _this), _this.statesCount = 2, _temp), (0, _possibleConstructorReturn3.default)(_this, _ret);
    }

    (0, _createClass3.default)(ArcTangentHandler, [{
        key: 'getPreviewGeomParams',
        value: function getPreviewGeomParams(clickPositions) {
            if (clickPositions.length >= 2) return (0, _geomutils.drawArcBy_S_T_E)(clickPositions[0], this.from.tangent, clickPositions[1]);
            return _point2.default.prototype.getPreviewGeomParams.call(this, clickPositions);
        }
    }, {
        key: 'handleClick',
        value: function handleClick(newPosition) {
            if (this.clicksPos.length !== 0) return (0, _get3.default)(ArcTangentHandler.prototype.__proto__ || (0, _getPrototypeOf2.default)(ArcTangentHandler.prototype), 'handleClick', this).call(this, newPosition);

            var variants = [];
            // for all lines/arcs on sketch
            var _iteratorNormalCompletion = true;
            var _didIteratorError = false;
            var _iteratorError = undefined;

            try {
                for (var _iterator = (0, _getIterator3.default)(this.sketch.children), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
                    var object = _step.value;

                    if (object.state.class !== 'CC_Line' && object.state.class !== 'CC_Arc') continue;
                    // for their endpoint matching newPosition
                    var _arr = ['startPoint', 'endPoint'];
                    for (var _i = 0; _i < _arr.length; _i++) {
                        var end = _arr[_i];
                        if (!object[end].pos.equals(newPosition)) continue;
                        // calculate the tangent
                        var tangent = (0, _geomutils.getTangent)(object.geomParams, newPosition);
                        if (tangent.lengthSq() === 0) // length is really either 0 or 1
                            continue;
                        if (end === 'startPoint') tangent.negate();
                        // point on tangent incidence: save all info about object, endpoint and tangent
                        variants.push({ object: object, end: end, tangent: tangent });
                    }
                }

                // handle the click if a unique variant has been found
            } catch (err) {
                _didIteratorError = true;
                _iteratorError = err;
            } finally {
                try {
                    if (!_iteratorNormalCompletion && _iterator.return) {
                        _iterator.return();
                    }
                } finally {
                    if (_didIteratorError) {
                        throw _iteratorError;
                    }
                }
            }

            this.from = variants.length === 1 ? variants[0] : undefined;
            return this.from !== undefined;
        }
    }]);
    return ArcTangentHandler;
}(_draw2.default);

exports.default = ArcTangentHandler;