project/node_modules/echarts/lib/chart/helper/Line.js

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2024-07-14 15:48:34 +08:00
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/**
* AUTO-GENERATED FILE. DO NOT MODIFY.
*/
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import { __extends } from "tslib";
import { isArray, each } from 'zrender/lib/core/util.js';
import * as vector from 'zrender/lib/core/vector.js';
import * as symbolUtil from '../../util/symbol.js';
import ECLinePath from './LinePath.js';
import * as graphic from '../../util/graphic.js';
import { toggleHoverEmphasis, enterEmphasis, leaveEmphasis, SPECIAL_STATES } from '../../util/states.js';
import { getLabelStatesModels, setLabelStyle } from '../../label/labelStyle.js';
import { round } from '../../util/number.js';
var SYMBOL_CATEGORIES = ['fromSymbol', 'toSymbol'];
function makeSymbolTypeKey(symbolCategory) {
return '_' + symbolCategory + 'Type';
}
function makeSymbolTypeValue(name, lineData, idx) {
var symbolType = lineData.getItemVisual(idx, name);
if (!symbolType || symbolType === 'none') {
return symbolType;
}
var symbolSize = lineData.getItemVisual(idx, name + 'Size');
var symbolRotate = lineData.getItemVisual(idx, name + 'Rotate');
var symbolOffset = lineData.getItemVisual(idx, name + 'Offset');
var symbolKeepAspect = lineData.getItemVisual(idx, name + 'KeepAspect');
var symbolSizeArr = symbolUtil.normalizeSymbolSize(symbolSize);
var symbolOffsetArr = symbolUtil.normalizeSymbolOffset(symbolOffset || 0, symbolSizeArr);
return symbolType + symbolSizeArr + symbolOffsetArr + (symbolRotate || '') + (symbolKeepAspect || '');
}
/**
* @inner
*/
function createSymbol(name, lineData, idx) {
var symbolType = lineData.getItemVisual(idx, name);
if (!symbolType || symbolType === 'none') {
return;
}
var symbolSize = lineData.getItemVisual(idx, name + 'Size');
var symbolRotate = lineData.getItemVisual(idx, name + 'Rotate');
var symbolOffset = lineData.getItemVisual(idx, name + 'Offset');
var symbolKeepAspect = lineData.getItemVisual(idx, name + 'KeepAspect');
var symbolSizeArr = symbolUtil.normalizeSymbolSize(symbolSize);
var symbolOffsetArr = symbolUtil.normalizeSymbolOffset(symbolOffset || 0, symbolSizeArr);
var symbolPath = symbolUtil.createSymbol(symbolType, -symbolSizeArr[0] / 2 + symbolOffsetArr[0], -symbolSizeArr[1] / 2 + symbolOffsetArr[1], symbolSizeArr[0], symbolSizeArr[1], null, symbolKeepAspect);
symbolPath.__specifiedRotation = symbolRotate == null || isNaN(symbolRotate) ? void 0 : +symbolRotate * Math.PI / 180 || 0;
symbolPath.name = name;
return symbolPath;
}
function createLine(points) {
var line = new ECLinePath({
name: 'line',
subPixelOptimize: true
});
setLinePoints(line.shape, points);
return line;
}
function setLinePoints(targetShape, points) {
targetShape.x1 = points[0][0];
targetShape.y1 = points[0][1];
targetShape.x2 = points[1][0];
targetShape.y2 = points[1][1];
targetShape.percent = 1;
var cp1 = points[2];
if (cp1) {
targetShape.cpx1 = cp1[0];
targetShape.cpy1 = cp1[1];
} else {
targetShape.cpx1 = NaN;
targetShape.cpy1 = NaN;
}
}
var Line = /** @class */function (_super) {
__extends(Line, _super);
function Line(lineData, idx, seriesScope) {
var _this = _super.call(this) || this;
_this._createLine(lineData, idx, seriesScope);
return _this;
}
Line.prototype._createLine = function (lineData, idx, seriesScope) {
var seriesModel = lineData.hostModel;
var linePoints = lineData.getItemLayout(idx);
var line = createLine(linePoints);
line.shape.percent = 0;
graphic.initProps(line, {
shape: {
percent: 1
}
}, seriesModel, idx);
this.add(line);
each(SYMBOL_CATEGORIES, function (symbolCategory) {
var symbol = createSymbol(symbolCategory, lineData, idx);
// symbols must added after line to make sure
// it will be updated after line#update.
// Or symbol position and rotation update in line#beforeUpdate will be one frame slow
this.add(symbol);
this[makeSymbolTypeKey(symbolCategory)] = makeSymbolTypeValue(symbolCategory, lineData, idx);
}, this);
this._updateCommonStl(lineData, idx, seriesScope);
};
// TODO More strict on the List type in parameters?
Line.prototype.updateData = function (lineData, idx, seriesScope) {
var seriesModel = lineData.hostModel;
var line = this.childOfName('line');
var linePoints = lineData.getItemLayout(idx);
var target = {
shape: {}
};
setLinePoints(target.shape, linePoints);
graphic.updateProps(line, target, seriesModel, idx);
each(SYMBOL_CATEGORIES, function (symbolCategory) {
var symbolType = makeSymbolTypeValue(symbolCategory, lineData, idx);
var key = makeSymbolTypeKey(symbolCategory);
// Symbol changed
if (this[key] !== symbolType) {
this.remove(this.childOfName(symbolCategory));
var symbol = createSymbol(symbolCategory, lineData, idx);
this.add(symbol);
}
this[key] = symbolType;
}, this);
this._updateCommonStl(lineData, idx, seriesScope);
};
;
Line.prototype.getLinePath = function () {
return this.childAt(0);
};
Line.prototype._updateCommonStl = function (lineData, idx, seriesScope) {
var seriesModel = lineData.hostModel;
var line = this.childOfName('line');
var emphasisLineStyle = seriesScope && seriesScope.emphasisLineStyle;
var blurLineStyle = seriesScope && seriesScope.blurLineStyle;
var selectLineStyle = seriesScope && seriesScope.selectLineStyle;
var labelStatesModels = seriesScope && seriesScope.labelStatesModels;
var emphasisDisabled = seriesScope && seriesScope.emphasisDisabled;
var focus = seriesScope && seriesScope.focus;
var blurScope = seriesScope && seriesScope.blurScope;
// Optimization for large dataset
if (!seriesScope || lineData.hasItemOption) {
var itemModel = lineData.getItemModel(idx);
var emphasisModel = itemModel.getModel('emphasis');
emphasisLineStyle = emphasisModel.getModel('lineStyle').getLineStyle();
blurLineStyle = itemModel.getModel(['blur', 'lineStyle']).getLineStyle();
selectLineStyle = itemModel.getModel(['select', 'lineStyle']).getLineStyle();
emphasisDisabled = emphasisModel.get('disabled');
focus = emphasisModel.get('focus');
blurScope = emphasisModel.get('blurScope');
labelStatesModels = getLabelStatesModels(itemModel);
}
var lineStyle = lineData.getItemVisual(idx, 'style');
var visualColor = lineStyle.stroke;
line.useStyle(lineStyle);
line.style.fill = null;
line.style.strokeNoScale = true;
line.ensureState('emphasis').style = emphasisLineStyle;
line.ensureState('blur').style = blurLineStyle;
line.ensureState('select').style = selectLineStyle;
// Update symbol
each(SYMBOL_CATEGORIES, function (symbolCategory) {
var symbol = this.childOfName(symbolCategory);
if (symbol) {
// Share opacity and color with line.
symbol.setColor(visualColor);
symbol.style.opacity = lineStyle.opacity;
for (var i = 0; i < SPECIAL_STATES.length; i++) {
var stateName = SPECIAL_STATES[i];
var lineState = line.getState(stateName);
if (lineState) {
var lineStateStyle = lineState.style || {};
var state = symbol.ensureState(stateName);
var stateStyle = state.style || (state.style = {});
if (lineStateStyle.stroke != null) {
stateStyle[symbol.__isEmptyBrush ? 'stroke' : 'fill'] = lineStateStyle.stroke;
}
if (lineStateStyle.opacity != null) {
stateStyle.opacity = lineStateStyle.opacity;
}
}
}
symbol.markRedraw();
}
}, this);
var rawVal = seriesModel.getRawValue(idx);
setLabelStyle(this, labelStatesModels, {
labelDataIndex: idx,
labelFetcher: {
getFormattedLabel: function (dataIndex, stateName) {
return seriesModel.getFormattedLabel(dataIndex, stateName, lineData.dataType);
}
},
inheritColor: visualColor || '#000',
defaultOpacity: lineStyle.opacity,
defaultText: (rawVal == null ? lineData.getName(idx) : isFinite(rawVal) ? round(rawVal) : rawVal) + ''
});
var label = this.getTextContent();
// Always set `textStyle` even if `normalStyle.text` is null, because default
// values have to be set on `normalStyle`.
if (label) {
var labelNormalModel = labelStatesModels.normal;
label.__align = label.style.align;
label.__verticalAlign = label.style.verticalAlign;
// 'start', 'middle', 'end'
label.__position = labelNormalModel.get('position') || 'middle';
var distance = labelNormalModel.get('distance');
if (!isArray(distance)) {
distance = [distance, distance];
}
label.__labelDistance = distance;
}
this.setTextConfig({
position: null,
local: true,
inside: false // Can't be inside for stroke element.
});
toggleHoverEmphasis(this, focus, blurScope, emphasisDisabled);
};
Line.prototype.highlight = function () {
enterEmphasis(this);
};
Line.prototype.downplay = function () {
leaveEmphasis(this);
};
Line.prototype.updateLayout = function (lineData, idx) {
this.setLinePoints(lineData.getItemLayout(idx));
};
Line.prototype.setLinePoints = function (points) {
var linePath = this.childOfName('line');
setLinePoints(linePath.shape, points);
linePath.dirty();
};
Line.prototype.beforeUpdate = function () {
var lineGroup = this;
var symbolFrom = lineGroup.childOfName('fromSymbol');
var symbolTo = lineGroup.childOfName('toSymbol');
var label = lineGroup.getTextContent();
// Quick reject
if (!symbolFrom && !symbolTo && (!label || label.ignore)) {
return;
}
var invScale = 1;
var parentNode = this.parent;
while (parentNode) {
if (parentNode.scaleX) {
invScale /= parentNode.scaleX;
}
parentNode = parentNode.parent;
}
var line = lineGroup.childOfName('line');
// If line not changed
// FIXME Parent scale changed
if (!this.__dirty && !line.__dirty) {
return;
}
var percent = line.shape.percent;
var fromPos = line.pointAt(0);
var toPos = line.pointAt(percent);
var d = vector.sub([], toPos, fromPos);
vector.normalize(d, d);
function setSymbolRotation(symbol, percent) {
// Fix #12388
// when symbol is set to be 'arrow' in markLine,
// symbolRotate value will be ignored, and compulsively use tangent angle.
// rotate by default if symbol rotation is not specified
var specifiedRotation = symbol.__specifiedRotation;
if (specifiedRotation == null) {
var tangent = line.tangentAt(percent);
symbol.attr('rotation', (percent === 1 ? -1 : 1) * Math.PI / 2 - Math.atan2(tangent[1], tangent[0]));
} else {
symbol.attr('rotation', specifiedRotation);
}
}
if (symbolFrom) {
symbolFrom.setPosition(fromPos);
setSymbolRotation(symbolFrom, 0);
symbolFrom.scaleX = symbolFrom.scaleY = invScale * percent;
symbolFrom.markRedraw();
}
if (symbolTo) {
symbolTo.setPosition(toPos);
setSymbolRotation(symbolTo, 1);
symbolTo.scaleX = symbolTo.scaleY = invScale * percent;
symbolTo.markRedraw();
}
if (label && !label.ignore) {
label.x = label.y = 0;
label.originX = label.originY = 0;
var textAlign = void 0;
var textVerticalAlign = void 0;
var distance = label.__labelDistance;
var distanceX = distance[0] * invScale;
var distanceY = distance[1] * invScale;
var halfPercent = percent / 2;
var tangent = line.tangentAt(halfPercent);
var n = [tangent[1], -tangent[0]];
var cp = line.pointAt(halfPercent);
if (n[1] > 0) {
n[0] = -n[0];
n[1] = -n[1];
}
var dir = tangent[0] < 0 ? -1 : 1;
if (label.__position !== 'start' && label.__position !== 'end') {
var rotation = -Math.atan2(tangent[1], tangent[0]);
if (toPos[0] < fromPos[0]) {
rotation = Math.PI + rotation;
}
label.rotation = rotation;
}
var dy = void 0;
switch (label.__position) {
case 'insideStartTop':
case 'insideMiddleTop':
case 'insideEndTop':
case 'middle':
dy = -distanceY;
textVerticalAlign = 'bottom';
break;
case 'insideStartBottom':
case 'insideMiddleBottom':
case 'insideEndBottom':
dy = distanceY;
textVerticalAlign = 'top';
break;
default:
dy = 0;
textVerticalAlign = 'middle';
}
switch (label.__position) {
case 'end':
label.x = d[0] * distanceX + toPos[0];
label.y = d[1] * distanceY + toPos[1];
textAlign = d[0] > 0.8 ? 'left' : d[0] < -0.8 ? 'right' : 'center';
textVerticalAlign = d[1] > 0.8 ? 'top' : d[1] < -0.8 ? 'bottom' : 'middle';
break;
case 'start':
label.x = -d[0] * distanceX + fromPos[0];
label.y = -d[1] * distanceY + fromPos[1];
textAlign = d[0] > 0.8 ? 'right' : d[0] < -0.8 ? 'left' : 'center';
textVerticalAlign = d[1] > 0.8 ? 'bottom' : d[1] < -0.8 ? 'top' : 'middle';
break;
case 'insideStartTop':
case 'insideStart':
case 'insideStartBottom':
label.x = distanceX * dir + fromPos[0];
label.y = fromPos[1] + dy;
textAlign = tangent[0] < 0 ? 'right' : 'left';
label.originX = -distanceX * dir;
label.originY = -dy;
break;
case 'insideMiddleTop':
case 'insideMiddle':
case 'insideMiddleBottom':
case 'middle':
label.x = cp[0];
label.y = cp[1] + dy;
textAlign = 'center';
label.originY = -dy;
break;
case 'insideEndTop':
case 'insideEnd':
case 'insideEndBottom':
label.x = -distanceX * dir + toPos[0];
label.y = toPos[1] + dy;
textAlign = tangent[0] >= 0 ? 'right' : 'left';
label.originX = distanceX * dir;
label.originY = -dy;
break;
}
label.scaleX = label.scaleY = invScale;
label.setStyle({
// Use the user specified text align and baseline first
verticalAlign: label.__verticalAlign || textVerticalAlign,
align: label.__align || textAlign
});
}
};
return Line;
}(graphic.Group);
export default Line;