react-network-diagrams
Version:
366 lines (310 loc) • 19.2 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.AngledEdge = undefined;
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 _underscore = require("underscore");
var _underscore2 = _interopRequireDefault(_underscore);
var _react = require("react");
var _react2 = _interopRequireDefault(_react);
var _propTypes = require("prop-types");
var _propTypes2 = _interopRequireDefault(_propTypes);
var _victor = require("victor");
var _victor2 = _interopRequireDefault(_victor);
var _Label = require("./Label");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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; } /**
* Copyright (c) 2018, The Regents of the University of California,
* through Lawrence Berkeley National Laboratory (subject to receipt
* of any required approvals from the U.S. Dept. of Energy).
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree.
*/
// Alias
var Vector = _victor2.default;
/**
* This component draws an angled path between a source and target. The
* source and target are specified as props x1, y1 and x2, y2.
*
* The angle of the path is either left aligned (vertical, then horizontal)
* or right aligned (horizontal, then vertical) as specified by curve
* direction. The offset and position prop are used to position the line
* in relation to the endpoints for bi-directional purposes.
* An arrow may be added by passing an 'arrow' prop of true and may be
* customized by supplying arrowWidth and/or arrowHeight. It defaults to
* being the width*1.5 wide and width*2 long.
*
* Stroke color and width can also be supplied.
*/
var AngledEdge = exports.AngledEdge = function (_React$Component) {
_inherits(AngledEdge, _React$Component);
function AngledEdge() {
_classCallCheck(this, AngledEdge);
return _possibleConstructorReturn(this, (AngledEdge.__proto__ || Object.getPrototypeOf(AngledEdge)).apply(this, arguments));
}
_createClass(AngledEdge, [{
key: "handleClick",
value: function handleClick(e) {
e.stopPropagation();
if (this.props.onSelectionChange) {
this.props.onSelectionChange("edge", this.props.name);
}
}
}, {
key: "rotateOffset",
value: function rotateOffset(cx, x, y, a) {
var r = Math.PI / 180 * a;
var cos = Math.cos(r);
var sin = Math.sin(r);
var nx = x - (x - cx) * cos;
var ny = y - (x - cx) * sin;
return [nx, ny];
}
}, {
key: "render",
value: function render() {
var _this2 = this;
// Class
var classed = "edge-angled";
var labelClassed = "edge-label";
var styleModifier = "normal";
if (this.props.selected) {
classed += " selected";
labelClassed += "selected";
styleModifier = "selected";
}
if (this.props.muted) {
classed += " muted";
labelClassed += "muted";
styleModifier = "muted";
}
if (this.props.invisible) {
classed += " edge-event-region";
labelClassed += " edge-event-region";
}
if (!_underscore2.default.isUndefined(this.props.classed)) {
classed += " " + this.props.classed;
}
var angle = this.props.position;
var offset = this.props.offset;
// set the source and target vectors
var source = new Vector(this.props.x1, this.props.y1);
var target = new Vector(this.props.x2, this.props.y2);
var sourceAngle = void 0;
var targetAngle = void 0;
var arrowWidth = this.props.arrowWidth || this.props.width * 1.5;
var arrowLength = this.props.arrowHeight || this.props.width * 2;
switch (this.props.curveDirection) {
case "left":
if (source.x < target.x && source.y < target.y) {
sourceAngle = 90 + angle;
targetAngle = -angle;
} else if (target.x < source.x && target.y < source.y) {
sourceAngle = 180 + angle;
targetAngle = -90 - angle;
} else if (source.x < target.x && source.y > target.y) {
sourceAngle = -90 - angle;
targetAngle = angle;
} else if (target.x < source.x && target.y > source.y) {
sourceAngle = 180 - angle;
targetAngle = 90 + angle;
} else if (source.x > target.x && source.y === target.y) {
sourceAngle = 180 - angle;
targetAngle = 180 + angle;
} else if (source.x === target.x && source.y > target.y) {
sourceAngle = -90 - angle;
targetAngle = -90 + angle;
} else if (source.x === target.x && source.y < target.y) {
sourceAngle = 90 - angle;
targetAngle = 90 + angle;
} else {
sourceAngle = -angle;
targetAngle = angle;
}
break;
case "right":
if (source.x < target.x && source.y < target.y) {
sourceAngle = -angle;
targetAngle = 90 + angle;
} else if (target.x < source.x && target.y < source.y) {
sourceAngle = -90 - angle;
targetAngle = 180 + angle;
} else if (source.x < target.x && source.y > target.y) {
sourceAngle = angle;
targetAngle = -90 - angle;
} else if (target.x < source.x && target.y > source.y) {
sourceAngle = 90 + angle;
targetAngle = 180 - angle;
} else if (source.x > target.x && source.y === target.y) {
sourceAngle = 180 + angle;
targetAngle = 180 - angle;
} else if (source.x === target.x && source.y > target.y) {
sourceAngle = -90 + angle;
targetAngle = -90 - angle;
} else if (source.x === target.x && source.y < target.y) {
sourceAngle = 90 + angle;
targetAngle = 90 - angle;
} else {
sourceAngle = angle;
targetAngle = -angle;
}
break;
default:
break;
}
var sourceRotated = this.rotateOffset(source.x + offset, source.x, source.y, sourceAngle);
var targetRotated = this.rotateOffset(target.x - offset, target.x, target.y, targetAngle);
var sourceOffset = new Vector(sourceRotated[0], sourceRotated[1]);
var targetOffset = new Vector(targetRotated[0], targetRotated[1]);
var arrowBase = targetOffset.clone();
var diff = offset - arrowLength;
var arrowHeadLocation = this.rotateOffset(target.x - diff, target.x, target.y, targetAngle);
var arrowLeftSide = this.rotateOffset(arrowBase.x - arrowWidth / 2, arrowBase.x, arrowBase.y, 90 + targetAngle);
var arrowRightSide = this.rotateOffset(arrowBase.x + arrowWidth / 2, arrowBase.x, arrowBase.y, 90 + targetAngle);
var arrowBaseLeft = new Vector(arrowLeftSide[0], arrowLeftSide[1]);
var arrowBaseRight = new Vector(arrowRightSide[0], arrowRightSide[1]);
var arrowHead = new Vector(arrowHeadLocation[0], arrowHeadLocation[1]);
var path = "";
path += "M " + source.x + "," + source.y;
path += " L " + sourceOffset.x + "," + sourceOffset.y;
// Label Positioning
var cx = (source.x + target.x) / 2;
var cy = (source.y + target.y) / 2;
switch (this.props.curveDirection) {
case "left":
if (source.x < target.x && source.y < target.y || source.x < target.x && source.y > target.y) {
path += " L " + sourceOffset.x + "," + targetOffset.y;
cy = target.y;
} else {
path += " L " + targetOffset.x + "," + sourceOffset.y;
cy = source.y;
}
break;
case "right":
if (source.x < target.x && source.y < target.y || source.x < target.x && source.y > target.y) {
path += " L " + targetOffset.x + "," + sourceOffset.y;
cy = source.y;
} else {
path += " L " + sourceOffset.x + "," + targetOffset.y;
cy = target.y;
}
break;
default:
break;
}
path += " L " + targetOffset.x + "," + targetOffset.y;
if (!this.props.arrow) {
path += " L " + target.x + " " + target.y;
}
// Draw an arrow at the target end
// Arrow SVG
var arrow = "M" + arrowHead.x + "," + arrowHead.y + " ";
arrow += "L" + arrowBaseLeft.x + "," + arrowBaseLeft.y;
arrow += "L" + arrowBaseRight.x + "," + arrowBaseRight.y;
arrow += "L" + arrowHead.x + "," + arrowHead.y;
var opacity = 1.0;
if (this.props.invisible) {
opacity = 0;
} else if (this.props.muted) {
opacity = 0.3;
}
var labelElement = null;
if (this.props.label) {
labelElement = _react2.default.createElement(_Label.Label, {
x: cx,
y: cy,
textAnchor: this.props.textAnchor,
classed: labelClassed,
style: this.props.labelStyle[styleModifier],
label: this.props.label,
xOffset: this.props.labelOffsetX,
yOffset: this.props.labelOffsetY,
labelPosition: this.props.labelPosition
});
}
if (this.props.arrow) {
return _react2.default.createElement(
"g",
null,
_react2.default.createElement(
"g",
{ strokeWidth: this.props.width, stroke: this.props.color, opacity: opacity },
_react2.default.createElement("path", {
d: path,
fill: "none",
className: classed,
onClick: function onClick(e) {
return _this2.handleClick(e);
}
}),
_react2.default.createElement("path", {
d: arrow,
className: classed,
stroke: this.props.color,
fill: this.props.color,
strokeWidth: "1"
})
),
labelElement
);
} else {
return _react2.default.createElement(
"g",
null,
_react2.default.createElement(
"g",
{ strokeWidth: this.props.width, stroke: this.props.color, opacity: opacity },
_react2.default.createElement("path", {
d: path,
fill: "none",
className: classed,
onClick: function onClick(e) {
return _this2.handleClick(e);
}
})
),
labelElement
);
}
}
}]);
return AngledEdge;
}(_react2.default.Component);
AngledEdge.propTypes = {
/** An offset to the position of the label which can be used for fine tuning */
offset: _propTypes2.default.number,
/** The width of the circuit diagram */
width: _propTypes2.default.number,
color: _propTypes2.default.string,
curveDirection: _propTypes2.default.string,
/**
* Boolean value that controls if a directional arrow is drawn instead of line-caps.
* When arrow is set to "true", the vector between x1, y1 and x2, y2 will have the
* Line-caps replaced with a directional arrow. Arrowheads can be sized using the
* arrowWidth and arrowHeight property.
*/
arrow: _propTypes2.default.bool,
/**
* Controls the angle of the offset from the center of the line.
*/
position: _propTypes2.default.number,
/** Display the endpoint selected */
selected: _propTypes2.default.bool,
/** Display the endpoint muted */
muted: _propTypes2.default.bool
};
AngledEdge.defaultProps = {
offset: 15,
width: 1,
color: "#ddd",
curveDirection: "left",
arrow: false,
position: 30,
selected: false,
muted: false
};