mermaid/packages/mermaid/src/diagrams/mindmap/svgDraw.ts

305 lines
8.8 KiB
TypeScript

import type { D3Element } from '../../mermaidAPI.js';
import { createText } from '../../rendering-util/createText.js';
import type { FilledMindMapNode, MindmapDB } from './mindmapTypes.js';
import type { Point } from '../../types.js';
import { parseFontSize } from '../../utils.js';
import type { MermaidConfig } from '../../config.type.js';
const MAX_SECTIONS = 12;
type ShapeFunction = (
db: MindmapDB,
elem: D3Element,
node: FilledMindMapNode,
section?: number
) => void;
const defaultBkg: ShapeFunction = function (db, elem, node, section) {
const rd = 5;
elem
.append('path')
.attr('id', 'node-' + node.id)
.attr('class', 'node-bkg node-' + db.type2Str(node.type))
.attr(
'd',
`M0 ${node.height - rd} v${-node.height + 2 * rd} q0,-5 5,-5 h${
node.width - 2 * rd
} q5,0 5,5 v${node.height - rd} H0 Z`
);
elem
.append('line')
.attr('class', 'node-line-' + section)
.attr('x1', 0)
.attr('y1', node.height)
.attr('x2', node.width)
.attr('y2', node.height);
};
const rectBkg: ShapeFunction = function (db, elem, node) {
elem
.append('rect')
.attr('id', 'node-' + node.id)
.attr('class', 'node-bkg node-' + db.type2Str(node.type))
.attr('height', node.height)
.attr('width', node.width);
};
const cloudBkg: ShapeFunction = function (db, elem, node) {
const w = node.width;
const h = node.height;
const r1 = 0.15 * w;
const r2 = 0.25 * w;
const r3 = 0.35 * w;
const r4 = 0.2 * w;
elem
.append('path')
.attr('id', 'node-' + node.id)
.attr('class', 'node-bkg node-' + db.type2Str(node.type))
.attr(
'd',
`M0 0 a${r1},${r1} 0 0,1 ${w * 0.25},${-1 * w * 0.1}
a${r3},${r3} 1 0,1 ${w * 0.4},${-1 * w * 0.1}
a${r2},${r2} 1 0,1 ${w * 0.35},${1 * w * 0.2}
a${r1},${r1} 1 0,1 ${w * 0.15},${1 * h * 0.35}
a${r4},${r4} 1 0,1 ${-1 * w * 0.15},${1 * h * 0.65}
a${r2},${r1} 1 0,1 ${-1 * w * 0.25},${w * 0.15}
a${r3},${r3} 1 0,1 ${-1 * w * 0.5},${0}
a${r1},${r1} 1 0,1 ${-1 * w * 0.25},${-1 * w * 0.15}
a${r1},${r1} 1 0,1 ${-1 * w * 0.1},${-1 * h * 0.35}
a${r4},${r4} 1 0,1 ${w * 0.1},${-1 * h * 0.65}
H0 V0 Z`
);
};
const bangBkg: ShapeFunction = function (db, elem, node) {
const w = node.width;
const h = node.height;
const r = 0.15 * w;
elem
.append('path')
.attr('id', 'node-' + node.id)
.attr('class', 'node-bkg node-' + db.type2Str(node.type))
.attr(
'd',
`M0 0 a${r},${r} 1 0,0 ${w * 0.25},${-1 * h * 0.1}
a${r},${r} 1 0,0 ${w * 0.25},${0}
a${r},${r} 1 0,0 ${w * 0.25},${0}
a${r},${r} 1 0,0 ${w * 0.25},${1 * h * 0.1}
a${r},${r} 1 0,0 ${w * 0.15},${1 * h * 0.33}
a${r * 0.8},${r * 0.8} 1 0,0 ${0},${1 * h * 0.34}
a${r},${r} 1 0,0 ${-1 * w * 0.15},${1 * h * 0.33}
a${r},${r} 1 0,0 ${-1 * w * 0.25},${h * 0.15}
a${r},${r} 1 0,0 ${-1 * w * 0.25},${0}
a${r},${r} 1 0,0 ${-1 * w * 0.25},${0}
a${r},${r} 1 0,0 ${-1 * w * 0.25},${-1 * h * 0.15}
a${r},${r} 1 0,0 ${-1 * w * 0.1},${-1 * h * 0.33}
a${r * 0.8},${r * 0.8} 1 0,0 ${0},${-1 * h * 0.34}
a${r},${r} 1 0,0 ${w * 0.1},${-1 * h * 0.33}
H0 V0 Z`
);
};
const circleBkg: ShapeFunction = function (db, elem, node) {
elem
.append('circle')
.attr('id', 'node-' + node.id)
.attr('class', 'node-bkg node-' + db.type2Str(node.type))
.attr('r', node.width / 2);
};
function insertPolygonShape(
parent: D3Element,
w: number,
h: number,
points: Point[],
node: FilledMindMapNode
) {
return parent
.insert('polygon', ':first-child')
.attr(
'points',
points
.map(function (d) {
return d.x + ',' + d.y;
})
.join(' ')
)
.attr('transform', 'translate(' + (node.width - w) / 2 + ', ' + h + ')');
}
const hexagonBkg: ShapeFunction = function (
_db: MindmapDB,
elem: D3Element,
node: FilledMindMapNode
) {
const h = node.height;
const f = 4;
const m = h / f;
const w = node.width - node.padding + 2 * m;
const points: Point[] = [
{ x: m, y: 0 },
{ x: w - m, y: 0 },
{ x: w, y: -h / 2 },
{ x: w - m, y: -h },
{ x: m, y: -h },
{ x: 0, y: -h / 2 },
];
insertPolygonShape(elem, w, h, points, node);
};
const roundedRectBkg: ShapeFunction = function (db, elem, node) {
elem
.append('rect')
.attr('id', 'node-' + node.id)
.attr('class', 'node-bkg node-' + db.type2Str(node.type))
.attr('height', node.height)
.attr('rx', node.padding)
.attr('ry', node.padding)
.attr('width', node.width);
};
/**
* @param db - The database
* @param elem - The D3 dom element in which the node is to be added
* @param node - The node to be added
* @param fullSection - ?
* @param conf - The configuration object
* @returns The height nodes dom element
*/
export const drawNode = function (
db: MindmapDB,
elem: D3Element,
node: FilledMindMapNode,
fullSection: number,
conf: MermaidConfig
): number {
const htmlLabels = conf.htmlLabels;
const section = fullSection % (MAX_SECTIONS - 1);
const nodeElem = elem.append('g');
node.section = section;
let sectionClass = 'section-' + section;
if (section < 0) {
sectionClass += ' section-root';
}
nodeElem.attr('class', (node.class ? node.class + ' ' : '') + 'mindmap-node ' + sectionClass);
const bkgElem = nodeElem.append('g');
// Create the wrapped text element
const textElem = nodeElem.append('g');
const description = node.descr.replace(/(<br\/*>)/g, '\n');
const newEl = createText(textElem, description, {
useHtmlLabels: htmlLabels,
width: node.width,
classes: 'mindmap-node-label',
});
if (!htmlLabels) {
textElem
.attr('dy', '1em')
.attr('alignment-baseline', 'middle')
.attr('dominant-baseline', 'middle')
.attr('text-anchor', 'middle');
}
const bbox = textElem.node().getBBox();
const [fontSize] = parseFontSize(conf.fontSize);
node.height = bbox.height + fontSize! * 1.1 * 0.5 + node.padding;
node.width = bbox.width + 2 * node.padding;
if (node.icon) {
if (node.type === db.nodeType.CIRCLE) {
node.height += 50;
node.width += 50;
const icon = nodeElem
.append('foreignObject')
.attr('height', '50px')
.attr('width', node.width)
.attr('style', 'text-align: center;');
icon
.append('div')
.attr('class', 'icon-container')
.append('i')
.attr('class', 'node-icon-' + section + ' ' + node.icon);
textElem.attr(
'transform',
'translate(' + node.width / 2 + ', ' + (node.height / 2 - 1.5 * node.padding) + ')'
);
} else {
node.width += 50;
const orgHeight = node.height;
node.height = Math.max(orgHeight, 60);
const heightDiff = Math.abs(node.height - orgHeight);
const icon = nodeElem
.append('foreignObject')
.attr('width', '60px')
.attr('height', node.height)
.attr('style', 'text-align: center;margin-top:' + heightDiff / 2 + 'px;');
icon
.append('div')
.attr('class', 'icon-container')
.append('i')
.attr('class', 'node-icon-' + section + ' ' + node.icon);
textElem.attr(
'transform',
'translate(' + (25 + node.width / 2) + ', ' + (heightDiff / 2 + node.padding / 2) + ')'
);
}
} else {
if (!htmlLabels) {
const dx = node.width / 2;
const dy = node.padding / 2;
textElem.attr('transform', 'translate(' + dx + ', ' + dy + ')');
// textElem.attr('transform', 'translate(' + node.width / 2 + ', ' + node.padding / 2 + ')');
} else {
const dx = (node.width - bbox.width) / 2;
const dy = (node.height - bbox.height) / 2;
textElem.attr('transform', 'translate(' + dx + ', ' + dy + ')');
}
}
switch (node.type) {
case db.nodeType.DEFAULT:
defaultBkg(db, bkgElem, node, section);
break;
case db.nodeType.ROUNDED_RECT:
roundedRectBkg(db, bkgElem, node, section);
break;
case db.nodeType.RECT:
rectBkg(db, bkgElem, node, section);
break;
case db.nodeType.CIRCLE:
bkgElem.attr('transform', 'translate(' + node.width / 2 + ', ' + +node.height / 2 + ')');
circleBkg(db, bkgElem, node, section);
break;
case db.nodeType.CLOUD:
cloudBkg(db, bkgElem, node, section);
break;
case db.nodeType.BANG:
bangBkg(db, bkgElem, node, section);
break;
case db.nodeType.HEXAGON:
hexagonBkg(db, bkgElem, node, section);
break;
}
db.setElementForId(node.id, nodeElem);
return node.height;
};
export const positionNode = function (db: MindmapDB, node: FilledMindMapNode) {
const nodeElem = db.getElementById(node.id);
const x = node.x || 0;
const y = node.y || 0;
// Position the node to its coordinate
nodeElem.attr('transform', 'translate(' + x + ',' + y + ')');
};