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SVG zoom for visualization graph #810

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merged 2 commits into from
Sep 25, 2024
Merged

SVG zoom for visualization graph #810

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d26afda
implement svg zoom for mermaid diagram visualization
zoeyTM Sep 23, 2024
0bcbc23
fix diagram height and button overlap for large batch numbers
zoeyTM Sep 25, 2024
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2 changes: 1 addition & 1 deletion packages/ui/package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,6 @@
"clean": "rimraf dist tsconfig.tsbuildinfo",
"prepack": "pnpm build"
},
"dependencies": {},
"devDependencies": {
"@fontsource/roboto": "^5.0.8",
"@nomicfoundation/ignition-core": "workspace:^",
Expand All @@ -32,6 +31,7 @@
"react-router-dom": "6.11.0",
"react-tooltip": "^5.21.4",
"styled-components": "5.3.10",
"svg-pan-zoom": "^3.6.1",
"vite": "^5.0.0",
"vite-plugin-singlefile": "^2.0.1"
}
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17 changes: 17 additions & 0 deletions packages/ui/src/components/mermaid.tsx
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@@ -1,11 +1,13 @@
import React, { useEffect, useMemo } from "react";
import styled from "styled-components";
import svgPanZoom from "svg-pan-zoom";

import {
IgnitionModule,
IgnitionModuleResult,
} from "@nomicfoundation/ignition-core/ui-helpers";
import mermaid from "mermaid";

import { toMermaid } from "../utils/to-mermaid";

export const Mermaid: React.FC<{
Expand All @@ -23,6 +25,7 @@ export const Mermaid: React.FC<{

useEffect(() => {
mermaid.initialize({
maxTextSize: 500000,
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flowchart: {
padding: 50,
},
Expand All @@ -31,6 +34,20 @@ export const Mermaid: React.FC<{
mermaid.contentLoaded();
});

// requestAnimationFrame is used to ensure that the svgPanZoom is called after the svg is rendered
useEffect(() => {
requestAnimationFrame(() => {
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Can you walk me through this one.

Is the problem that you want to hold on the svgPanZoom invocation until you are sure that the diagram svg is rendered?

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Correct. If svgPanZoom is run before its rendered the function will error. This ensures that its run after rendering

setTimeout(() => {
svgPanZoom(".mermaid > svg", {
zoomEnabled: true,
controlIconsEnabled: true,
fit: true,
center: true,
});
}, 0);
});
});

return (
<Wrap>
<div className="mermaid">{diagram}</div>
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13 changes: 13 additions & 0 deletions packages/ui/src/main.css
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Expand Up @@ -45,11 +45,24 @@ body {

/* mermaid styles */

.mermaid {
background: #fbfbfb;
}

.mermaid * {
font-family: "Roboto", sans-serif;
font-size: 30px;
}

.mermaid svg {
height: 300px;
vertical-align: middle;
}

.mermaid span {
cursor: default;
}

.mermaid rect {
rx: 5;
ry: 5;
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