逐步完成前后端服务器

frontend/node_modules/echarts/lib/chart/treemap/treemapVisual.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.
+*/
+
+
+/**
+ * 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 VisualMapping from '../../visual/VisualMapping.js';
+import { each, extend, isArray } from 'zrender/lib/core/util.js';
+import { modifyHSL, modifyAlpha } from 'zrender/lib/tool/color.js';
+import { makeInner } from '../../util/model.js';
+var ITEM_STYLE_NORMAL = 'itemStyle';
+var inner = makeInner();
+export default {
+  seriesType: 'treemap',
+  reset: function (seriesModel) {
+    var tree = seriesModel.getData().tree;
+    var root = tree.root;
+    if (root.isRemoved()) {
+      return;
+    }
+    travelTree(root,
+    // Visual should calculate from tree root but not view root.
+    {}, seriesModel.getViewRoot().getAncestors(), seriesModel);
+  }
+};
+function travelTree(node, designatedVisual, viewRootAncestors, seriesModel) {
+  var nodeModel = node.getModel();
+  var nodeLayout = node.getLayout();
+  var data = node.hostTree.data;
+  // Optimize
+  if (!nodeLayout || nodeLayout.invisible || !nodeLayout.isInView) {
+    return;
+  }
+  var nodeItemStyleModel = nodeModel.getModel(ITEM_STYLE_NORMAL);
+  var visuals = buildVisuals(nodeItemStyleModel, designatedVisual, seriesModel);
+  var existsStyle = data.ensureUniqueItemVisual(node.dataIndex, 'style');
+  // calculate border color
+  var borderColor = nodeItemStyleModel.get('borderColor');
+  var borderColorSaturation = nodeItemStyleModel.get('borderColorSaturation');
+  var thisNodeColor;
+  if (borderColorSaturation != null) {
+    // For performance, do not always execute 'calculateColor'.
+    thisNodeColor = calculateColor(visuals);
+    borderColor = calculateBorderColor(borderColorSaturation, thisNodeColor);
+  }
+  existsStyle.stroke = borderColor;
+  var viewChildren = node.viewChildren;
+  if (!viewChildren || !viewChildren.length) {
+    thisNodeColor = calculateColor(visuals);
+    // Apply visual to this node.
+    existsStyle.fill = thisNodeColor;
+  } else {
+    var mapping_1 = buildVisualMapping(node, nodeModel, nodeLayout, nodeItemStyleModel, visuals, viewChildren);
+    // Designate visual to children.
+    each(viewChildren, function (child, index) {
+      // If higher than viewRoot, only ancestors of viewRoot is needed to visit.
+      if (child.depth >= viewRootAncestors.length || child === viewRootAncestors[child.depth]) {
+        var childVisual = mapVisual(nodeModel, visuals, child, index, mapping_1, seriesModel);
+        travelTree(child, childVisual, viewRootAncestors, seriesModel);
+      }
+    });
+  }
+}
+function buildVisuals(nodeItemStyleModel, designatedVisual, seriesModel) {
+  var visuals = extend({}, designatedVisual);
+  var designatedVisualItemStyle = seriesModel.designatedVisualItemStyle;
+  each(['color', 'colorAlpha', 'colorSaturation'], function (visualName) {
+    // Priority: thisNode > thisLevel > parentNodeDesignated > seriesModel
+    designatedVisualItemStyle[visualName] = designatedVisual[visualName];
+    var val = nodeItemStyleModel.get(visualName);
+    designatedVisualItemStyle[visualName] = null;
+    val != null && (visuals[visualName] = val);
+  });
+  return visuals;
+}
+function calculateColor(visuals) {
+  var color = getValueVisualDefine(visuals, 'color');
+  if (color) {
+    var colorAlpha = getValueVisualDefine(visuals, 'colorAlpha');
+    var colorSaturation = getValueVisualDefine(visuals, 'colorSaturation');
+    if (colorSaturation) {
+      color = modifyHSL(color, null, null, colorSaturation);
+    }
+    if (colorAlpha) {
+      color = modifyAlpha(color, colorAlpha);
+    }
+    return color;
+  }
+}
+function calculateBorderColor(borderColorSaturation, thisNodeColor) {
+  return thisNodeColor != null
+  // Can only be string
+  ? modifyHSL(thisNodeColor, null, null, borderColorSaturation) : null;
+}
+function getValueVisualDefine(visuals, name) {
+  var value = visuals[name];
+  if (value != null && value !== 'none') {
+    return value;
+  }
+}
+function buildVisualMapping(node, nodeModel, nodeLayout, nodeItemStyleModel, visuals, viewChildren) {
+  if (!viewChildren || !viewChildren.length) {
+    return;
+  }
+  var rangeVisual = getRangeVisual(nodeModel, 'color') || visuals.color != null && visuals.color !== 'none' && (getRangeVisual(nodeModel, 'colorAlpha') || getRangeVisual(nodeModel, 'colorSaturation'));
+  if (!rangeVisual) {
+    return;
+  }
+  var visualMin = nodeModel.get('visualMin');
+  var visualMax = nodeModel.get('visualMax');
+  var dataExtent = nodeLayout.dataExtent.slice();
+  visualMin != null && visualMin < dataExtent[0] && (dataExtent[0] = visualMin);
+  visualMax != null && visualMax > dataExtent[1] && (dataExtent[1] = visualMax);
+  var colorMappingBy = nodeModel.get('colorMappingBy');
+  var opt = {
+    type: rangeVisual.name,
+    dataExtent: dataExtent,
+    visual: rangeVisual.range
+  };
+  if (opt.type === 'color' && (colorMappingBy === 'index' || colorMappingBy === 'id')) {
+    opt.mappingMethod = 'category';
+    opt.loop = true;
+    // categories is ordinal, so do not set opt.categories.
+  } else {
+    opt.mappingMethod = 'linear';
+  }
+  var mapping = new VisualMapping(opt);
+  inner(mapping).drColorMappingBy = colorMappingBy;
+  return mapping;
+}
+// Notice: If we don't have the attribute 'colorRange', but only use
+// attribute 'color' to represent both concepts of 'colorRange' and 'color',
+// (It means 'colorRange' when 'color' is Array, means 'color' when not array),
+// this problem will be encountered:
+// If a level-1 node doesn't have children, and its siblings have children,
+// and colorRange is set on level-1, then the node cannot be colored.
+// So we separate 'colorRange' and 'color' to different attributes.
+function getRangeVisual(nodeModel, name) {
+  // 'colorRange', 'colorARange', 'colorSRange'.
+  // If not exists on this node, fetch from levels and series.
+  var range = nodeModel.get(name);
+  return isArray(range) && range.length ? {
+    name: name,
+    range: range
+  } : null;
+}
+function mapVisual(nodeModel, visuals, child, index, mapping, seriesModel) {
+  var childVisuals = extend({}, visuals);
+  if (mapping) {
+    // Only support color, colorAlpha, colorSaturation.
+    var mappingType = mapping.type;
+    var colorMappingBy = mappingType === 'color' && inner(mapping).drColorMappingBy;
+    var value = colorMappingBy === 'index' ? index : colorMappingBy === 'id' ? seriesModel.mapIdToIndex(child.getId()) : child.getValue(nodeModel.get('visualDimension'));
+    childVisuals[mappingType] = mapping.mapValueToVisual(value);
+  }
+  return childVisuals;
+}