dis-gui-lifetoys
Version:
An extensible, styleable, & React-based controller library inspired by the venerable dat-gui.
308 lines (306 loc) • 13 kB
JavaScript
;
function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }
Object.defineProperty(exports, "__esModule", {
value: true
});
exports["default"] = GradientWidget;
var _propTypes = _interopRequireDefault(require("prop-types"));
var _react = _interopRequireWildcard(require("react"));
var _styleContext = require("../styleContext.js");
var _immutabilityHelper = _interopRequireDefault(require("immutability-helper"));
var _row = _interopRequireDefault(require("../core/row"));
var _label = _interopRequireDefault(require("../core/label"));
var _control = _interopRequireDefault(require("../core/control"));
var _colorRange = _interopRequireDefault(require("../core/colorRange"));
var _colorStop = _interopRequireDefault(require("../core/colorStop.js"));
function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }
function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { "default": obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj["default"] = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
function _iterableToArrayLimit(arr, i) { var _i = null == arr ? null : "undefined" != typeof Symbol && arr[Symbol.iterator] || arr["@@iterator"]; if (null != _i) { var _s, _e, _x, _r, _arr = [], _n = !0, _d = !1; try { if (_x = (_i = _i.call(arr)).next, 0 === i) { if (Object(_i) !== _i) return; _n = !1; } else for (; !(_n = (_s = _x.call(_i)).done) && (_arr.push(_s.value), _arr.length !== i); _n = !0); } catch (err) { _d = !0, _e = err; } finally { try { if (!_n && null != _i["return"] && (_r = _i["return"](), Object(_r) !== _r)) return; } finally { if (_d) throw _e; } } return _arr; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
function GradientWidget(_ref) {
var _this = this;
var expanded = _ref.expanded,
stops = _ref.stops,
label = _ref.label,
onChange = _ref.onChange,
onFinishChange = _ref.onFinishChange;
var _useState = (0, _react.useState)(expanded),
_useState2 = _slicedToArray(_useState, 2),
expandedState = _useState2[0],
setExpanded = _useState2[1];
var _useState3 = (0, _react.useState)(stops),
_useState4 = _slicedToArray(_useState3, 2),
stopsState = _useState4[0],
setStops = _useState4[1];
var _useState5 = (0, _react.useState)(0),
_useState6 = _slicedToArray(_useState5, 2),
selectedStopState = _useState6[0],
setSelectedStop = _useState6[1];
var styleContext = (0, _react.useContext)(_styleContext.StyleContext);
var canvasRef = /*#__PURE__*/(0, _react.createRef)();
var stopfieldRef = /*#__PURE__*/(0, _react.createRef)();
(0, _react.useEffect)(function () {
updateCanvas();
});
var handleStopFieldMouseDown = function handleStopFieldMouseDown(event) {
var el = event.target.closest('div');
if (el !== stopfieldRef.current) {
return;
}
var updatedStops = stops.slice();
var rect = event.target.getBoundingClientRect();
var newStop = (event.pageX - rect.left) / rect.width;
var c = getGradientValue(getCleanStops(), newStop);
updatedStops.push({
stop: newStop,
red: c.red,
green: c.green,
blue: c.blue
});
/*let newState = update(this.state, {
$set: {
stops: stops,
selectedStopState: stops.length - 1
}
})*/
setStops(updatedStops);
setSelectedStop(updatedStops.length - 1);
handleChange();
handleFinishChange();
};
var handleRemoveStop = function handleRemoveStop() {
var updatedStops = stops.slice();
updatedStops.splice(selectedStopState, 1);
/*let newState = update(this.state, {
$set: {
stops: stops,
selectedStopState: 0
}
})*/
setStops(updatedStops);
setSelectedStop(0);
handleChange();
handleFinishChange();
};
var handleChangeRed = function handleChangeRed(value) {
var updatedStops = stops.slice();
updatedStops[selectedStopState].red = parseInt(value);
/*let newState = update(this.state, {
$set: {
stops: stops
}
})*/
setStops(updatedStops);
handleChange();
};
var handleChangeGreen = function handleChangeGreen(value) {
var updatedStops = stops.slice();
updatedStops[selectedStopState].green = parseInt(value);
/*let newState = update(this.state, {
$set: {
stops: stops
}
})*/
setStops(updatedStops);
handleChange();
};
var handleChangeBlue = function handleChangeBlue(value) {
var updatedStops = stops.slice();
updatedStops[selectedStopState].blue = parseInt(value);
/*let newState = update(this.state, {
$set: {
stops: stops
}
})*/
setStops(updatedStops);
handleChange();
};
var handleChange = function handleChange() {
if (onChange) {
onChange(getCleanStops());
}
};
var handleFinishChange = function handleFinishChange() {
if (onFinishChange) {
onFinishChange(getCleanStops());
}
};
var handleCanvasClick = function handleCanvasClick() {
setExpanded(!expandedState);
};
var handleStopChange = function handleStopChange(event) {
var updatedStops = stops.slice();
updatedStops[event.index].stop = event.stop;
/*let newState = update(this.state, {
$set: {
stops: stops,
}
});*/
setStops(updatedStops);
handleChange();
};
var handleStopClick = function handleStopClick(event) {
setSelectedStop(event.index);
};
var getCleanStops = function getCleanStops() {
if (!stops) {
return [];
}
// Returns stops, bounded to [0..1] and sorted.
var cleanStops = stops.slice();
cleanStops.sort(function (a, b) {
return a.stop - b.stop;
});
if (cleanStops[0].stop > 0) {
cleanStops.unshift({
stop: 0,
red: cleanStops[0].red,
green: cleanStops[0].green,
blue: cleanStops[0].blue
});
}
var lastStop = cleanStops[cleanStops.length - 1];
if (lastStop.stop < 1) {
cleanStops.push({
stop: 1,
red: lastStop.red,
green: lastStop.green,
blue: lastStop.blue
});
}
return cleanStops;
};
var getGradientValue = function getGradientValue(cleanStops, frac) {
for (var i = 0; i < cleanStops.length - 1; i++) {
if (frac >= cleanStops[i].stop && frac <= cleanStops[i + 1].stop) {
var left = cleanStops[i];
var right = cleanStops[i + 1];
var ifrac = (frac - left.stop) / (right.stop - left.stop);
return {
red: Math.round(left.red + ifrac * (right.red - left.red)),
green: Math.round(left.green + ifrac * (right.green - left.green)),
blue: Math.round(left.blue + ifrac * (right.blue - left.blue))
};
}
}
throw 'Error calculating gradient value.';
};
var updateCanvas = function updateCanvas() {
var stops = getCleanStops();
var canvas = canvasRef.current;
canvas.width = 512;
canvas.height = 1;
var ctx = canvas.getContext('2d');
for (var x = 0; x < canvas.width; x++) {
var frac = x / (canvas.width - 1);
var c = getGradientValue(stops, frac);
ctx.fillStyle = "rgb(".concat(c.red, ", ").concat(c.green, ", ").concat(c.blue, ")");
ctx.fillRect(x, 0, 1, 1);
}
};
return /*#__PURE__*/_react["default"].createElement("div", {
style: {}
}, /*#__PURE__*/_react["default"].createElement(_row["default"], null, /*#__PURE__*/_react["default"].createElement(_label["default"], null, label), /*#__PURE__*/_react["default"].createElement(_control["default"], null, /*#__PURE__*/_react["default"].createElement("canvas", {
ref: canvasRef,
onClick: handleCanvasClick.bind(this),
style: {
width: "".concat(styleContext.controlWidth, "px"),
position: 'relative',
height: "".concat(styleContext.computed.itemHeight, "px"),
WebkitUserSelect: 'none',
MozUserSelect: 'none',
msUserSelect: 'none',
userSelect: 'none',
cursor: 'pointer'
}
}), expandedState && 0 === 1 && /*#__PURE__*/_react["default"].createElement("div", null, /*#__PURE__*/_react["default"].createElement("div", {
ref: stopfieldRef,
onMouseDown: handleStopFieldMouseDown.bind(this),
style: {
width: "".concat(styleContext.controlWidth, "px"),
height: "".concat(styleContext.computed.fontHeight * 1.875, "px"),
boxSizing: 'border-box',
position: 'relative',
overflow: 'hidden',
cursor: 'pointer'
}
}, stopsState.map(function (stop, index) {
return /*#__PURE__*/_react["default"].createElement(_colorStop["default"], {
key: 'stop' + index,
index: index,
stop: stop.stop,
red: stop.red,
green: stop.green,
blue: stop.blue,
selected: index === selectedStopState,
onClick: handleStopClick.bind(_this),
onChange: handleStopChange.bind(_this),
onFinishChange: handleFinishChange.bind(_this)
});
})), /*#__PURE__*/_react["default"].createElement(_colorRange["default"], {
label: "Red",
value: stops[selectedStopState].red,
onChange: handleChangeRed.bind(this),
onFinishChange: handleFinishChange.bind(this)
}), /*#__PURE__*/_react["default"].createElement(_colorRange["default"], {
label: "Green",
value: stops[selectedStopState].green,
onChange: handleChangeGreen.bind(this),
onFinishChange: handleFinishChange.bind(this)
}), /*#__PURE__*/_react["default"].createElement(_colorRange["default"], {
label: "Blue",
value: stops[selectedStopState].blue,
onChange: handleChangeBlue.bind(this),
onFinishChange: handleFinishChange.bind(this)
}), stopsState.length > 1 && /*#__PURE__*/_react["default"].createElement("div", {
onClick: handleRemoveStop,
style: {
backgroundColor: styleContext.lowlight,
color: styleContext.highlight,
font: styleContext.font,
padding: "".concat(styleContext.paddingY, "px 0px"),
marginTop: "".concat(styleContext.paddingY, "px"),
textAlign: 'center',
cursor: 'pointer',
width: '100%',
WebkitUserSelect: 'none',
MozUserSelect: 'none',
msUserSelect: 'none',
userSelect: 'none'
}
}, "Remove Stop")))));
}
GradientWidget.propTypes = {
expanded: _propTypes["default"].bool,
stops: _propTypes["default"].array,
label: _propTypes["default"].string,
onChange: _propTypes["default"].func,
onFinishChange: _propTypes["default"].func
};
GradientWidget.defaultProps = {
expanded: false,
stops: [{
red: 255,
green: 0,
blue: 0,
stop: 0.125
}, {
red: 255,
green: 255,
blue: 0,
stop: 0.5
}, {
red: 255,
green: 255,
blue: 255,
stop: 0.875
}]
};
/*GradientWidget.contextTypes = {
styleContext: PropTypes.object,
};*/