core-graphics/lib/renderer/pointer-renderer.js

A core library for creating shape-based graphic editors

'use strict';

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

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var React = _interopRequireWildcard(_react);

var _grid = require('../utils/grid');

var _declarations = require('../declarations');

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var PointerRenderer = function (_React$Component) {
    _inherits(PointerRenderer, _React$Component);

    function PointerRenderer() {
        _classCallCheck(this, PointerRenderer);

        return _possibleConstructorReturn(this, Object.getPrototypeOf(PointerRenderer).apply(this, arguments));
    }

    _createClass(PointerRenderer, [{
        key: 'needsRendering',
        value: function needsRendering() {
            var _props = this.props;
            var grid = _props.grid;
            var mode = _props.mode;
            var shapesDeclarations = _props.shapesDeclarations;
            var mouse = _props.mouse;

            if (!grid.on) {
                return false;
            }
            if (!mouse.inside) {
                return false;
            }
            if ((0, _declarations.isDrawingShapeMode)(mode) && !shapesDeclarations[mode.payload.shapeType].ignoreGrid) {
                return true;
            }
            return false;
        }
    }, {
        key: 'render',
        value: function render() {
            if (!this.needsRendering()) {
                return null;
            }
            var _props2 = this.props;
            var mouse = _props2.mouse;
            var grid = _props2.grid;

            var _snapCoordsIfNeeded = (0, _grid.snapCoordsIfNeeded)(grid, mouse);

            var x = _snapCoordsIfNeeded.x;
            var y = _snapCoordsIfNeeded.y;

            return React.createElement('circle', { cx: x + 0.5, cy: y + 0.5, r: '2', fill: 'rgba(0,0,0,0.2)', stroke: 'rgba(0,0,0,0.4)', strokeWidth: '1' });
        }
    }]);

    return PointerRenderer;
}(React.Component);

exports.default = PointerRenderer;