lepu-test-platform-web/node_modules/echarts/lib/chart/helper/Symbol.js

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/*
* 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.
*/
var zrUtil = require("zrender/lib/core/util");
var _symbol = require("../../util/symbol");
var createSymbol = _symbol.createSymbol;
var graphic = require("../../util/graphic");
var _number = require("../../util/number");
var parsePercent = _number.parsePercent;
var _labelHelper = require("./labelHelper");
var getDefaultLabel = _labelHelper.getDefaultLabel;
/*
* 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.
*/
/**
* @module echarts/chart/helper/Symbol
*/
/**
* @constructor
* @alias {module:echarts/chart/helper/Symbol}
* @param {module:echarts/data/List} data
* @param {number} idx
* @extends {module:zrender/graphic/Group}
*/
function SymbolClz(data, idx, seriesScope) {
graphic.Group.call(this);
this.updateData(data, idx, seriesScope);
}
var symbolProto = SymbolClz.prototype;
/**
* @public
* @static
* @param {module:echarts/data/List} data
* @param {number} dataIndex
* @return {Array.<number>} [width, height]
*/
var getSymbolSize = SymbolClz.getSymbolSize = function (data, idx) {
var symbolSize = data.getItemVisual(idx, 'symbolSize');
return symbolSize instanceof Array ? symbolSize.slice() : [+symbolSize, +symbolSize];
};
function getScale(symbolSize) {
return [symbolSize[0] / 2, symbolSize[1] / 2];
}
function driftSymbol(dx, dy) {
this.parent.drift(dx, dy);
}
symbolProto._createSymbol = function (symbolType, data, idx, symbolSize, keepAspect) {
// Remove paths created before
this.removeAll();
var color = data.getItemVisual(idx, 'color'); // var symbolPath = createSymbol(
// symbolType, -0.5, -0.5, 1, 1, color
// );
// If width/height are set too small (e.g., set to 1) on ios10
// and macOS Sierra, a circle stroke become a rect, no matter what
// the scale is set. So we set width/height as 2. See #4150.
var symbolPath = createSymbol(symbolType, -1, -1, 2, 2, color, keepAspect);
symbolPath.attr({
z2: 100,
culling: true,
scale: getScale(symbolSize)
}); // Rewrite drift method
symbolPath.drift = driftSymbol;
this._symbolType = symbolType;
this.add(symbolPath);
};
/**
* Stop animation
* @param {boolean} toLastFrame
*/
symbolProto.stopSymbolAnimation = function (toLastFrame) {
this.childAt(0).stopAnimation(toLastFrame);
};
/**
* FIXME:
* Caution: This method breaks the encapsulation of this module,
* but it indeed brings convenience. So do not use the method
* unless you detailedly know all the implements of `Symbol`,
* especially animation.
*
* Get symbol path element.
*/
symbolProto.getSymbolPath = function () {
return this.childAt(0);
};
/**
* Get scale(aka, current symbol size).
* Including the change caused by animation
*/
symbolProto.getScale = function () {
return this.childAt(0).scale;
};
/**
* Highlight symbol
*/
symbolProto.highlight = function () {
this.childAt(0).trigger('emphasis');
};
/**
* Downplay symbol
*/
symbolProto.downplay = function () {
this.childAt(0).trigger('normal');
};
/**
* @param {number} zlevel
* @param {number} z
*/
symbolProto.setZ = function (zlevel, z) {
var symbolPath = this.childAt(0);
symbolPath.zlevel = zlevel;
symbolPath.z = z;
};
symbolProto.setDraggable = function (draggable) {
var symbolPath = this.childAt(0);
symbolPath.draggable = draggable;
symbolPath.cursor = draggable ? 'move' : symbolPath.cursor;
};
/**
* Update symbol properties
* @param {module:echarts/data/List} data
* @param {number} idx
* @param {Object} [seriesScope]
* @param {Object} [seriesScope.itemStyle]
* @param {Object} [seriesScope.hoverItemStyle]
* @param {Object} [seriesScope.symbolRotate]
* @param {Object} [seriesScope.symbolOffset]
* @param {module:echarts/model/Model} [seriesScope.labelModel]
* @param {module:echarts/model/Model} [seriesScope.hoverLabelModel]
* @param {boolean} [seriesScope.hoverAnimation]
* @param {Object} [seriesScope.cursorStyle]
* @param {module:echarts/model/Model} [seriesScope.itemModel]
* @param {string} [seriesScope.symbolInnerColor]
* @param {Object} [seriesScope.fadeIn=false]
*/
symbolProto.updateData = function (data, idx, seriesScope) {
this.silent = false;
var symbolType = data.getItemVisual(idx, 'symbol') || 'circle';
var seriesModel = data.hostModel;
var symbolSize = getSymbolSize(data, idx);
var isInit = symbolType !== this._symbolType;
if (isInit) {
var keepAspect = data.getItemVisual(idx, 'symbolKeepAspect');
this._createSymbol(symbolType, data, idx, symbolSize, keepAspect);
} else {
var symbolPath = this.childAt(0);
symbolPath.silent = false;
graphic.updateProps(symbolPath, {
scale: getScale(symbolSize)
}, seriesModel, idx);
}
this._updateCommon(data, idx, symbolSize, seriesScope);
if (isInit) {
var symbolPath = this.childAt(0);
var fadeIn = seriesScope && seriesScope.fadeIn;
var target = {
scale: symbolPath.scale.slice()
};
fadeIn && (target.style = {
opacity: symbolPath.style.opacity
});
symbolPath.scale = [0, 0];
fadeIn && (symbolPath.style.opacity = 0);
graphic.initProps(symbolPath, target, seriesModel, idx);
}
this._seriesModel = seriesModel;
}; // Update common properties
var normalStyleAccessPath = ['itemStyle'];
var emphasisStyleAccessPath = ['emphasis', 'itemStyle'];
var normalLabelAccessPath = ['label'];
var emphasisLabelAccessPath = ['emphasis', 'label'];
/**
* @param {module:echarts/data/List} data
* @param {number} idx
* @param {Array.<number>} symbolSize
* @param {Object} [seriesScope]
*/
symbolProto._updateCommon = function (data, idx, symbolSize, seriesScope) {
var symbolPath = this.childAt(0);
var seriesModel = data.hostModel;
var color = data.getItemVisual(idx, 'color'); // Reset style
if (symbolPath.type !== 'image') {
symbolPath.useStyle({
strokeNoScale: true
});
} else {
symbolPath.setStyle({
opacity: 1,
shadowBlur: null,
shadowOffsetX: null,
shadowOffsetY: null,
shadowColor: null
});
}
var itemStyle = seriesScope && seriesScope.itemStyle;
var hoverItemStyle = seriesScope && seriesScope.hoverItemStyle;
var symbolOffset = seriesScope && seriesScope.symbolOffset;
var labelModel = seriesScope && seriesScope.labelModel;
var hoverLabelModel = seriesScope && seriesScope.hoverLabelModel;
var hoverAnimation = seriesScope && seriesScope.hoverAnimation;
var cursorStyle = seriesScope && seriesScope.cursorStyle;
if (!seriesScope || data.hasItemOption) {
var itemModel = seriesScope && seriesScope.itemModel ? seriesScope.itemModel : data.getItemModel(idx); // Color must be excluded.
// Because symbol provide setColor individually to set fill and stroke
itemStyle = itemModel.getModel(normalStyleAccessPath).getItemStyle(['color']);
hoverItemStyle = itemModel.getModel(emphasisStyleAccessPath).getItemStyle();
symbolOffset = itemModel.getShallow('symbolOffset');
labelModel = itemModel.getModel(normalLabelAccessPath);
hoverLabelModel = itemModel.getModel(emphasisLabelAccessPath);
hoverAnimation = itemModel.getShallow('hoverAnimation');
cursorStyle = itemModel.getShallow('cursor');
} else {
hoverItemStyle = zrUtil.extend({}, hoverItemStyle);
}
var elStyle = symbolPath.style;
var symbolRotate = data.getItemVisual(idx, 'symbolRotate');
symbolPath.attr('rotation', (symbolRotate || 0) * Math.PI / 180 || 0);
if (symbolOffset) {
symbolPath.attr('position', [parsePercent(symbolOffset[0], symbolSize[0]), parsePercent(symbolOffset[1], symbolSize[1])]);
}
cursorStyle && symbolPath.attr('cursor', cursorStyle); // PENDING setColor before setStyle!!!
symbolPath.setColor(color, seriesScope && seriesScope.symbolInnerColor);
symbolPath.setStyle(itemStyle);
var opacity = data.getItemVisual(idx, 'opacity');
if (opacity != null) {
elStyle.opacity = opacity;
}
var liftZ = data.getItemVisual(idx, 'liftZ');
var z2Origin = symbolPath.__z2Origin;
if (liftZ != null) {
if (z2Origin == null) {
symbolPath.__z2Origin = symbolPath.z2;
symbolPath.z2 += liftZ;
}
} else if (z2Origin != null) {
symbolPath.z2 = z2Origin;
symbolPath.__z2Origin = null;
}
var useNameLabel = seriesScope && seriesScope.useNameLabel;
graphic.setLabelStyle(elStyle, hoverItemStyle, labelModel, hoverLabelModel, {
labelFetcher: seriesModel,
labelDataIndex: idx,
defaultText: getLabelDefaultText,
isRectText: true,
autoColor: color
}); // Do not execute util needed.
function getLabelDefaultText(idx, opt) {
return useNameLabel ? data.getName(idx) : getDefaultLabel(data, idx);
}
symbolPath.__symbolOriginalScale = getScale(symbolSize);
symbolPath.hoverStyle = hoverItemStyle;
symbolPath.highDownOnUpdate = hoverAnimation && seriesModel.isAnimationEnabled() ? highDownOnUpdate : null;
graphic.setHoverStyle(symbolPath);
};
function highDownOnUpdate(fromState, toState) {
// Do not support this hover animation util some scenario required.
// Animation can only be supported in hover layer when using `el.incremetal`.
if (this.incremental || this.useHoverLayer) {
return;
}
if (toState === 'emphasis') {
var scale = this.__symbolOriginalScale;
var ratio = scale[1] / scale[0];
var emphasisOpt = {
scale: [Math.max(scale[0] * 1.1, scale[0] + 3), Math.max(scale[1] * 1.1, scale[1] + 3 * ratio)]
}; // FIXME
// modify it after support stop specified animation.
// toState === fromState
// ? (this.stopAnimation(), this.attr(emphasisOpt))
this.animateTo(emphasisOpt, 400, 'elasticOut');
} else if (toState === 'normal') {
this.animateTo({
scale: this.__symbolOriginalScale
}, 400, 'elasticOut');
}
}
/**
* @param {Function} cb
* @param {Object} [opt]
* @param {Object} [opt.keepLabel=true]
*/
symbolProto.fadeOut = function (cb, opt) {
var symbolPath = this.childAt(0); // Avoid mistaken hover when fading out
this.silent = symbolPath.silent = true; // Not show text when animating
!(opt && opt.keepLabel) && (symbolPath.style.text = null);
graphic.updateProps(symbolPath, {
style: {
opacity: 0
},
scale: [0, 0]
}, this._seriesModel, this.dataIndex, cb);
};
zrUtil.inherits(SymbolClz, graphic.Group);
var _default = SymbolClz;
module.exports = _default;