devextreme
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HTML5 JavaScript Component Suite for Responsive Web Development
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JavaScript
/**
* DevExtreme (esm/viz/series/points/candlestick_point.js)
* Version: 21.1.4
* Build date: Mon Jun 21 2021
*
* Copyright (c) 2012 - 2021 Developer Express Inc. ALL RIGHTS RESERVED
* Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/
*/
import {
extend as _extend
} from "../../../core/utils/extend";
import symbolPoint from "./symbol_point";
import barPoint from "./bar_point";
var _math = Math;
var _abs = _math.abs;
var _min = _math.min;
var _max = _math.max;
var _round = _math.round;
var DEFAULT_FINANCIAL_TRACKER_MARGIN = 2;
export default _extend({}, barPoint, {
_getContinuousPoints: function(openCoord, closeCoord) {
var x = this.x;
var createPoint = this._options.rotated ? function(x, y) {
return [y, x]
} : function(x, y) {
return [x, y]
};
var width = this.width;
var highCoord = this.highY;
var max = _abs(highCoord - openCoord) < _abs(highCoord - closeCoord) ? openCoord : closeCoord;
var min = max === closeCoord ? openCoord : closeCoord;
var points;
if (min === max) {
points = [].concat(createPoint(x, this.highY)).concat(createPoint(x, this.lowY)).concat(createPoint(x, this.closeY)).concat(createPoint(x - width / 2, this.closeY)).concat(createPoint(x + width / 2, this.closeY)).concat(createPoint(x, this.closeY))
} else {
points = [].concat(createPoint(x, this.highY)).concat(createPoint(x, max)).concat(createPoint(x + width / 2, max)).concat(createPoint(x + width / 2, min)).concat(createPoint(x, min)).concat(createPoint(x, this.lowY)).concat(createPoint(x, min)).concat(createPoint(x - width / 2, min)).concat(createPoint(x - width / 2, max)).concat(createPoint(x, max))
}
return points
},
_getCrockPoints: function(y) {
var x = this.x;
var createPoint = this._options.rotated ? function(x, y) {
return [y, x]
} : function(x, y) {
return [x, y]
};
return [].concat(createPoint(x, this.highY)).concat(createPoint(x, this.lowY)).concat(createPoint(x, y)).concat(createPoint(x - this.width / 2, y)).concat(createPoint(x + this.width / 2, y)).concat(createPoint(x, y))
},
_getPoints: function() {
var points;
var closeCoord = this.closeY;
var openCoord = this.openY;
if (null !== closeCoord && null !== openCoord) {
points = this._getContinuousPoints(openCoord, closeCoord)
} else if (openCoord === closeCoord) {
points = [this.x, this.highY, this.x, this.lowY]
} else {
points = this._getCrockPoints(null !== openCoord ? openCoord : closeCoord)
}
return points
},
getColor: function() {
return this._isReduction ? this._options.reduction.color : this._styles.normal.stroke || this.series.getColor()
},
_drawMarkerInGroup: function(group, attributes, renderer) {
this.graphic = renderer.path(this._getPoints(), "area").attr({
"stroke-linecap": "square"
}).attr(attributes).data({
"chart-data-point": this
}).sharp().append(group)
},
_fillStyle: function() {
var styles = this._options.styles;
if (this._isReduction && this._isPositive) {
this._styles = styles.reductionPositive
} else if (this._isReduction) {
this._styles = styles.reduction
} else if (this._isPositive) {
this._styles = styles.positive
} else {
this._styles = styles
}
},
_getMinTrackerWidth: function() {
return 2 + 2 * this._styles.normal["stroke-width"]
},
correctCoordinates: function(correctOptions) {
var minWidth = this._getMinTrackerWidth();
var width = correctOptions.width;
width = width < minWidth ? minWidth : width > 10 ? 10 : width;
this.width = width + width % 2;
this.xCorrection = correctOptions.offset
},
_getMarkerGroup: function(group) {
var markerGroup;
if (this._isReduction && this._isPositive) {
markerGroup = group.reductionPositiveMarkersGroup
} else if (this._isReduction) {
markerGroup = group.reductionMarkersGroup
} else if (this._isPositive) {
markerGroup = group.defaultPositiveMarkersGroup
} else {
markerGroup = group.defaultMarkersGroup
}
return markerGroup
},
_drawMarker: function(renderer, group) {
this._drawMarkerInGroup(this._getMarkerGroup(group), this._getStyle(), renderer)
},
_getSettingsForTracker: function() {
var highY = this.highY;
var lowY = this.lowY;
var rotated = this._options.rotated;
var x;
var y;
var width;
var height;
if (highY === lowY) {
highY = rotated ? highY + DEFAULT_FINANCIAL_TRACKER_MARGIN : highY - DEFAULT_FINANCIAL_TRACKER_MARGIN;
lowY = rotated ? lowY - DEFAULT_FINANCIAL_TRACKER_MARGIN : lowY + DEFAULT_FINANCIAL_TRACKER_MARGIN
}
if (rotated) {
x = _min(lowY, highY);
y = this.x - this.width / 2;
width = _abs(lowY - highY);
height = this.width
} else {
x = this.x - this.width / 2;
y = _min(lowY, highY);
width = this.width;
height = _abs(lowY - highY)
}
return {
x: x,
y: y,
width: width,
height: height
}
},
_getGraphicBBox: function(location) {
var rotated = this._options.rotated;
var x = this.x;
var width = this.width;
var lowY = this.lowY;
var highY = this.highY;
if (location) {
var valVisibleArea = this.series.getValueAxis().getVisibleArea();
highY = this._truncateCoord(highY, valVisibleArea);
lowY = this._truncateCoord(lowY, valVisibleArea)
}
var bBox = {
x: !rotated ? x - _round(width / 2) : lowY,
y: !rotated ? highY : x - _round(width / 2),
width: !rotated ? width : highY - lowY,
height: !rotated ? lowY - highY : width
};
if (location) {
var isTop = "top" === location;
if (!this._options.rotated) {
bBox.y = isTop ? bBox.y : bBox.y + bBox.height;
bBox.height = 0
} else {
bBox.x = isTop ? bBox.x + bBox.width : bBox.x;
bBox.width = 0
}
}
return bBox
},
getTooltipParams: function(location) {
if (this.graphic) {
var minValue = _min(this.lowY, this.highY);
var maxValue = _max(this.lowY, this.highY);
var visibleArea = this._getVisibleArea();
var rotated = this._options.rotated;
var minVisible = rotated ? visibleArea.minX : visibleArea.minY;
var maxVisible = rotated ? visibleArea.maxX : visibleArea.maxY;
var min = _max(minVisible, minValue);
var max = _min(maxVisible, maxValue);
var centerCoord = this.getCenterCoord();
if ("edge" === location) {
centerCoord[rotated ? "x" : "y"] = rotated ? max : min
}
centerCoord.offset = 0;
return centerCoord
}
},
getCenterCoord() {
if (this.graphic) {
var x;
var y;
var minValue = _min(this.lowY, this.highY);
var maxValue = _max(this.lowY, this.highY);
var visibleArea = this._getVisibleArea();
var rotated = this._options.rotated;
var minVisible = rotated ? visibleArea.minX : visibleArea.minY;
var maxVisible = rotated ? visibleArea.maxX : visibleArea.maxY;
var min = _max(minVisible, minValue);
var max = _min(maxVisible, maxValue);
var center = min + (max - min) / 2;
if (rotated) {
y = this.x;
x = center
} else {
x = this.x;
y = center
}
return {
x: x,
y: y
}
}
},
hasValue: function() {
return null !== this.highValue && null !== this.lowValue
},
hasCoords: function() {
return null !== this.x && null !== this.lowY && null !== this.highY
},
_translate: function() {
var rotated = this._options.rotated;
var valTranslator = this._getValTranslator();
var x = this._getArgTranslator().translate(this.argument);
this.vx = this.vy = this.x = null === x ? x : x + (this.xCorrection || 0);
this.openY = null !== this.openValue ? valTranslator.translate(this.openValue) : null;
this.highY = valTranslator.translate(this.highValue);
this.lowY = valTranslator.translate(this.lowValue);
this.closeY = null !== this.closeValue ? valTranslator.translate(this.closeValue) : null;
var centerValue = _min(this.lowY, this.highY) + _abs(this.lowY - this.highY) / 2;
this._calculateVisibility(!rotated ? this.x : centerValue, !rotated ? centerValue : this.x)
},
getCrosshairData: function(x, y) {
var rotated = this._options.rotated;
var origY = rotated ? x : y;
var yValue;
var argument = this.argument;
var coords;
var coord = "low";
if (_abs(this.lowY - origY) < _abs(this.closeY - origY)) {
yValue = this.lowY
} else {
yValue = this.closeY;
coord = "close"
}
if (_abs(yValue - origY) >= _abs(this.openY - origY)) {
yValue = this.openY;
coord = "open"
}
if (_abs(yValue - origY) >= _abs(this.highY - origY)) {
yValue = this.highY;
coord = "high"
}
if (rotated) {
coords = {
y: this.vy,
x: yValue,
xValue: this[coord + "Value"],
yValue: argument
}
} else {
coords = {
x: this.vx,
y: yValue,
xValue: argument,
yValue: this[coord + "Value"]
}
}
coords.axis = this.series.axis;
return coords
},
_updateData: function(data) {
var label = this._label;
var reductionColor = this._options.reduction.color;
this.value = this.initialValue = data.reductionValue;
this.originalValue = data.value;
this.lowValue = this.originalLowValue = data.lowValue;
this.highValue = this.originalHighValue = data.highValue;
this.openValue = this.originalOpenValue = data.openValue;
this.closeValue = this.originalCloseValue = data.closeValue;
this._isPositive = data.openValue < data.closeValue;
this._isReduction = data.isReduction;
if (this._isReduction) {
label.setColor(reductionColor)
}
},
_updateMarker: function(animationEnabled, style, group) {
var graphic = this.graphic;
graphic.attr({
points: this._getPoints()
}).smartAttr(style).sharp();
group && graphic.append(this._getMarkerGroup(group))
},
_getLabelFormatObject: function() {
return {
openValue: this.openValue,
highValue: this.highValue,
lowValue: this.lowValue,
closeValue: this.closeValue,
reductionValue: this.initialValue,
argument: this.initialArgument,
value: this.initialValue,
seriesName: this.series.name,
originalOpenValue: this.originalOpenValue,
originalCloseValue: this.originalCloseValue,
originalLowValue: this.originalLowValue,
originalHighValue: this.originalHighValue,
originalArgument: this.originalArgument,
point: this
}
},
_getFormatObject: function(tooltip) {
var highValue = tooltip.formatValue(this.highValue);
var openValue = tooltip.formatValue(this.openValue);
var closeValue = tooltip.formatValue(this.closeValue);
var lowValue = tooltip.formatValue(this.lowValue);
var symbolMethods = symbolPoint;
var formatObject = symbolMethods._getFormatObject.call(this, tooltip);
return _extend({}, formatObject, {
valueText: "h: " + highValue + ("" !== openValue ? " o: " + openValue : "") + ("" !== closeValue ? " c: " + closeValue : "") + " l: " + lowValue,
highValueText: highValue,
openValueText: openValue,
closeValueText: closeValue,
lowValueText: lowValue
})
},
getMaxValue: function() {
return this.highValue
},
getMinValue: function() {
return this.lowValue
}
});