mermaid/packages/mermaid/src/rendering-util/rendering-elements/shapes/text.ts

import { labelHelper, updateNodeBounds, getNodeClasses } from './util.js';
import intersect from '../intersect/index.js';
import type { Node } from '$root/rendering-util/types.d.ts';
import { styles2String } from '$root/rendering-util/rendering-elements/shapes/handdrawnStyles.js';

export async function text(parent: SVGAElement, node: Node): Promise<SVGAElement> {
  const { labelStyles, nodeStyles } = styles2String(node);
  node.labelStyle = labelStyles;
  // console.log('IPI labelStyles:', labelStyles);
  const { shapeSvg, bbox } = await labelHelper(parent, node, getNodeClasses(node));

  const totalWidth = Math.max(bbox.width + node.padding, node?.width || 0);
  const totalHeight = Math.max(bbox.height + node.padding, node?.height || 0);
  const x = -totalWidth / 2;
  const y = -totalHeight / 2;

  // log.info('IPI node = ', node);

  let rect;
  const { cssStyles } = node;

  rect = shapeSvg.insert('rect', ':first-child');

  rect
    .attr('class', 'text')
    .attr('style', nodeStyles)
    .attr('rx', 0)
    .attr('ry', 0)
    .attr('x', x)
    .attr('y', y)
    .attr('width', totalWidth)
    .attr('height', totalHeight);

  updateNodeBounds(node, rect);

  node.intersect = function (point) {
    return intersect.rect(node, point);
  };

  return shapeSvg;
}