逐步完成前后端服务器
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126
frontend/node_modules/zrender/lib/svg-legacy/graphic.js
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126
frontend/node_modules/zrender/lib/svg-legacy/graphic.js
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import { createElement, XLINKNS } from '../svg/core.js';
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import { getMatrixStr, TEXT_ALIGN_TO_ANCHOR, adjustTextY } from '../svg/helper.js';
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import { getLineHeight } from '../contain/text.js';
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import SVGPathRebuilder from '../svg/SVGPathRebuilder.js';
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import mapStyleToAttrs from '../svg/mapStyleToAttrs.js';
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import { DEFAULT_FONT } from '../core/platform.js';
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function setTransform(svgEl, m) {
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if (m) {
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attr(svgEl, 'transform', getMatrixStr(m));
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}
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}
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function attr(el, key, val) {
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if (!val || val.type !== 'linear' && val.type !== 'radial') {
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el.setAttribute(key, val);
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}
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}
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function attrXLink(el, key, val) {
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el.setAttributeNS(XLINKNS, key, val);
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}
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function attrXML(el, key, val) {
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el.setAttributeNS('http://www.w3.org/XML/1998/namespace', key, val);
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}
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function bindStyle(svgEl, style, el) {
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mapStyleToAttrs(function (key, val) { return attr(svgEl, key, val); }, style, el, true);
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}
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var svgPath = {
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brush: function (el) {
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var style = el.style;
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var svgEl = el.__svgEl;
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if (!svgEl) {
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svgEl = createElement('path');
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el.__svgEl = svgEl;
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}
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if (!el.path) {
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el.createPathProxy();
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}
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var path = el.path;
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if (el.shapeChanged()) {
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path.beginPath();
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el.buildPath(path, el.shape);
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el.pathUpdated();
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}
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var pathVersion = path.getVersion();
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var elExt = el;
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var svgPathBuilder = elExt.__svgPathBuilder;
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if (elExt.__svgPathVersion !== pathVersion || !svgPathBuilder || el.style.strokePercent < 1) {
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if (!svgPathBuilder) {
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svgPathBuilder = elExt.__svgPathBuilder = new SVGPathRebuilder();
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}
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svgPathBuilder.reset();
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path.rebuildPath(svgPathBuilder, el.style.strokePercent);
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svgPathBuilder.generateStr();
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elExt.__svgPathVersion = pathVersion;
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}
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attr(svgEl, 'd', svgPathBuilder.getStr());
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bindStyle(svgEl, style, el);
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setTransform(svgEl, el.transform);
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}
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};
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export { svgPath as path };
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var svgImage = {
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brush: function (el) {
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var style = el.style;
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var image = style.image;
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if (image instanceof HTMLImageElement) {
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image = image.src;
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}
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else if (image instanceof HTMLCanvasElement) {
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image = image.toDataURL();
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}
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if (!image) {
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return;
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}
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var x = style.x || 0;
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var y = style.y || 0;
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var dw = style.width;
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var dh = style.height;
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var svgEl = el.__svgEl;
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if (!svgEl) {
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svgEl = createElement('image');
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el.__svgEl = svgEl;
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}
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if (image !== el.__imageSrc) {
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attrXLink(svgEl, 'href', image);
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el.__imageSrc = image;
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}
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attr(svgEl, 'width', dw + '');
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attr(svgEl, 'height', dh + '');
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attr(svgEl, 'x', x + '');
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attr(svgEl, 'y', y + '');
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bindStyle(svgEl, style, el);
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setTransform(svgEl, el.transform);
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}
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};
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export { svgImage as image };
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var svgText = {
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brush: function (el) {
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var style = el.style;
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var text = style.text;
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text != null && (text += '');
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if (!text || isNaN(style.x) || isNaN(style.y)) {
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return;
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}
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var textSvgEl = el.__svgEl;
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if (!textSvgEl) {
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textSvgEl = createElement('text');
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attrXML(textSvgEl, 'xml:space', 'preserve');
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el.__svgEl = textSvgEl;
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}
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var font = style.font || DEFAULT_FONT;
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var textSvgElStyle = textSvgEl.style;
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textSvgElStyle.font = font;
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textSvgEl.textContent = text;
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bindStyle(textSvgEl, style, el);
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setTransform(textSvgEl, el.transform);
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var x = style.x || 0;
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var y = adjustTextY(style.y || 0, getLineHeight(font), style.textBaseline);
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var textAlign = TEXT_ALIGN_TO_ANCHOR[style.textAlign]
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|| style.textAlign;
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attr(textSvgEl, 'dominant-baseline', 'central');
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attr(textSvgEl, 'text-anchor', textAlign);
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attr(textSvgEl, 'x', x + '');
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attr(textSvgEl, 'y', y + '');
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}
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};
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export { svgText as text };
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