mirror of
https://github.com/mermaid-js/mermaid.git
synced 2025-08-14 22:09:29 +02:00
Fix: Adjust ER diagram row height calculation and layout rendering
This commit is contained in:
omkarht
222
demos/er-multiline.html
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222
demos/er-multiline.html
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@@ -0,0 +1,222 @@
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<html>
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<head>
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<link href="https://fonts.googleapis.com/css?family=Montserrat&display=swap" rel="stylesheet" />
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<link href="https://unpkg.com/tailwindcss@^1.0/dist/tailwind.min.css" rel="stylesheet" />
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<link
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rel="stylesheet"
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href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css"
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/>
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<link
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href="https://cdn.jsdelivr.net/npm/@mdi/font@6.9.96/css/materialdesignicons.min.css"
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rel="stylesheet"
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/>
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<link
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href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css"
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rel="stylesheet"
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/>
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<link
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href="https://fonts.googleapis.com/css?family=Noto+Sans+SC&display=swap"
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rel="stylesheet"
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/>
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<link rel="preconnect" href="https://fonts.googleapis.com" />
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
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<link
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href="https://fonts.googleapis.com/css2?family=Kalam:wght@300;400;700&display=swap"
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rel="stylesheet"
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/>
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<link
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href="https://fonts.googleapis.com/css2?family=Caveat:wght@400..700&family=Kalam:wght@300;400;700&family=Rubik+Mono+One&display=swap"
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rel="stylesheet"
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/>
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<link
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href="https://fonts.googleapis.com/css2?family=Kalam:wght@300;400;700&family=Rubik+Mono+One&display=swap"
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rel="stylesheet"
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/>
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<link
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href="https://fonts.googleapis.com/css2?family=Recursive:wght@300..1000&display=swap"
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rel="stylesheet"
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/>
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<style>
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.recursive-500 {
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font-family: 'Recursive', serif;
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font-optical-sizing: auto;
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font-weight: 500;
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font-style: normal;
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font-variation-settings:
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'slnt' 0,
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'CASL' 0,
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'CRSV' 0.5,
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'MONO' 0;
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}
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body {
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/* background: rgb(221, 208, 208); */
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/* background: #333; */
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/* font-family: 'Arial'; */
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font-family: 'Recursive', serif;
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font-optical-sizing: auto;
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font-weight: 500;
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font-style: normal;
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font-variation-settings:
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'slnt' 0,
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'CASL' 0,
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'CRSV' 0.5,
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'MONO' 0;
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/* color: white; */
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/* font-size: 18px !important; */
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}
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.gridify.tiny {
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background-image:
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linear-gradient(transparent 11px, rgba(220, 220, 200, 0.8) 12px, transparent 12px),
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linear-gradient(90deg, transparent 11px, rgba(220, 220, 200, 0.8) 12px, transparent 12px);
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background-size:
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100% 12px,
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12px 100%;
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}
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.gridify.dots {
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background-image: radial-gradient(
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circle at center,
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rgba(220, 220, 200, 0.8) 1px,
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transparent 1px
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);
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background-size: 24px 24px;
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}
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h1 {
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color: grey;
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}
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.mermaid2 {
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display: none;
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}
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.mermaid svg {
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font-size: 16px !important;
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font-family: 'Recursive', serif;
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font-optical-sizing: auto;
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font-weight: 500;
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font-style: normal;
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font-variation-settings:
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'slnt' 0,
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'CASL' 0,
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'CRSV' 0.5,
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'MONO' 0;
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}
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pre {
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width: 100%;
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/*box-shadow: 4px 4px 0px 0px #0000000F;*/
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}
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</style>
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</head>
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<body class="gridify dots">
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<div class="w-full h-64">
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<pre id="diagram4" class="mermaid" style="background: rgb(255, 255, 255)">
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erDiagram
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CAR ||--o{ NAMED-DRIVER : allows
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CAR ::: Pine {
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string registrationNumber PK "Primary Key<br><strong>Unique registration number</strong>"
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string make "Car make<br><strong>e.g., Toyota</strong>"
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string model "Model of the car<br><strong>e.g., Corolla</strong>"
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string[] parts "List of parts<br><strong>Stored as array</strong>"
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}
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PERSON ||--o{ NAMED-DRIVER : is
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PERSON ::: someclass {
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string driversLicense PK "The license #<br><strong>Primary Key</strong>"
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string(99) firstName "Only 99 characters <br>are allowed <br> <strong>e.g., Smith</strong>"
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string lastName "Last name of person<br><strong>e.g., Smith</strong>"
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string phone UK "Unique phone number<br><strong>Used for contact</strong>"
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int age "Age of the person<br><strong>Must be numeric</strong>"
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}
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NAMED-DRIVER {
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string carRegistrationNumber PK, FK, UK, PK "Foreign key to CAR<br><strong>Also part of PK</strong>"
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string driverLicence PK, FK "Foreign key to PERSON<br><strong>Also part of PK</strong>"
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}
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MANUFACTURER only one to zero or more CAR : makesx
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</pre>
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<hr />
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<pre class="mermaid">
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erDiagram
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_**testẽζ➕Ø😀㌕ぼ**_ {
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*__List~List~int~~sdfds__* **driversLicense** PK "***The l😀icense #***"
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string last*Name*
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string __phone__ UK
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*string(99)~T~~~~~~* firstName "Only __99__ <br>characters are a<br>llowed dsfsdfsdfsdfs"
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int _age_
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}
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</pre>
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</div>
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<script type="module">
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import mermaid from './mermaid.esm.mjs';
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import layouts from './mermaid-layout-elk.esm.mjs';
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const staticBellIconPack = {
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prefix: 'fa6-regular',
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icons: {
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bell: {
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body: '<path fill="currentColor" d="M224 0c-17.7 0-32 14.3-32 32v19.2C119 66 64 130.6 64 208v25.4c0 45.4-15.5 89.5-43.8 124.9L5.3 377c-5.8 7.2-6.9 17.1-2.9 25.4S14.8 416 24 416h400c9.2 0 17.6-5.3 21.6-13.6s2.9-18.2-2.9-25.4l-14.9-18.6c-28.3-35.5-43.8-79.6-43.8-125V208c0-77.4-55-142-128-156.8V32c0-17.7-14.3-32-32-32m0 96c61.9 0 112 50.1 112 112v25.4c0 47.9 13.9 94.6 39.7 134.6H72.3c25.8-40 39.7-86.7 39.7-134.6V208c0-61.9 50.1-112 112-112m64 352H160c0 17 6.7 33.3 18.7 45.3S207 512 224 512s33.3-6.7 45.3-18.7S288 465 288 448"/>',
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width: 448,
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},
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},
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width: 512,
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height: 512,
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};
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mermaid.registerIconPacks([
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{
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name: 'logos',
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loader: () =>
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fetch('https://unpkg.com/@iconify-json/logos@1/icons.json').then((res) => res.json()),
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},
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{
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name: 'fa',
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loader: () => staticBellIconPack,
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},
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]);
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mermaid.registerLayoutLoaders(layouts);
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mermaid.parseError = function (err, hash) {
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console.error('Mermaid error: ', err);
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};
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window.callback = function () {
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alert('A callback was triggered');
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};
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function callback() {
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alert('It worked');
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}
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await mermaid.initialize({
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startOnLoad: false,
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theme: 'forest',
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look: 'classic',
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layout: 'dagre',
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// theme: 'default',
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// look: 'classic',
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flowchart: { titleTopMargin: 10 },
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fontFamily: 'Recursive',
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sequence: {
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actorFontFamily: 'courier',
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noteFontFamily: 'courier',
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messageFontFamily: 'courier',
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},
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kanban: {
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htmlLabels: false,
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},
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fontSize: 16,
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logLevel: 0,
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securityLevel: 'loose',
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callback,
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});
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// setTimeout(() => {
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mermaid.init(undefined, document.querySelectorAll('.mermaid'));
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// }, 1000);
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mermaid.parseError = function (err, hash) {
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console.error('In parse error:');
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console.error(err);
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};
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</script>
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</body>
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</html>
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@@ -89,6 +89,7 @@ export async function erBox<T extends SVGGraphicsElement>(parent: D3Selection<T>
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nameBBox.height += TEXT_PADDING;
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let yOffset = 0;
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const yOffsets = [];
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const rows = [];
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let maxTypeWidth = 0;
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let maxNameWidth = 0;
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let maxKeysWidth = 0;
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@@ -137,12 +138,12 @@ export async function erBox<T extends SVGGraphicsElement>(parent: D3Selection<T>
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);
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maxCommentWidth = Math.max(maxCommentWidth, commentBBox.width + PADDING);
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yOffset +=
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const rowHeight =
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Math.max(typeBBox.height, nameBBox.height, keysBBox.height, commentBBox.height) +
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TEXT_PADDING;
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yOffsets.push(yOffset);
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rows.push({ yOffset, rowHeight });
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yOffset += rowHeight;
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}
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yOffsets.pop();
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let totalWidthSections = 4;
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if (maxKeysWidth <= PADDING) {
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@@ -185,8 +186,12 @@ export async function erBox<T extends SVGGraphicsElement>(parent: D3Selection<T>
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options.fillStyle = 'solid';
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}
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let totalShapeBBoxHeight = 0;
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if (rows.length > 0) {
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totalShapeBBoxHeight = rows.reduce((sum, row) => sum + (row?.rowHeight ?? 0), 0);
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}
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const w = Math.max(shapeBBox.width + PADDING * 2, node?.width || 0, maxWidth);
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const h = Math.max(shapeBBox.height + (yOffsets[0] || yOffset) + TEXT_PADDING, node?.height || 0);
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const h = Math.max((totalShapeBBoxHeight ?? 0) + nameBBox.height, node?.height || 0);
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const x = -w / 2;
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const y = -h / 2;
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@@ -232,13 +237,10 @@ export async function erBox<T extends SVGGraphicsElement>(parent: D3Selection<T>
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yOffsets.push(0);
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// Draw row rects
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for (const [i, yOffset] of yOffsets.entries()) {
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if (i === 0 && yOffsets.length > 1) {
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continue;
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// Skip first row
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}
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const isEven = i % 2 === 0 && yOffset !== 0;
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const roughRect = rc.rectangle(x, nameBBox.height + y + yOffset, w, nameBBox.height, {
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for (const [i, row] of rows.entries()) {
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const contentRowIndex = i + 1; // Adjusted index to skip the header (name) row
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const isEven = contentRowIndex % 2 === 0 && row.yOffset !== 0;
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const roughRect = rc.rectangle(x, nameBBox.height + y + row?.yOffset, w, row?.rowHeight, {
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...options,
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fill: isEven ? rowEven : rowOdd,
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stroke: nodeBorder,
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@@ -246,7 +248,7 @@ export async function erBox<T extends SVGGraphicsElement>(parent: D3Selection<T>
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shapeSvg
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.insert(() => roughRect, 'g.label')
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.attr('style', cssStyles!.join(''))
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.attr('class', `row-rect-${i % 2 === 0 ? 'even' : 'odd'}`);
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.attr('class', `row-rect-${isEven ? 'even' : 'odd'}`);
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}
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// Draw divider lines
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