svg-layout-designer-react/src/Components/SVG/Elements/DepthDimensionLayer.tsx
2023-01-30 14:59:55 +00:00

100 lines
2.6 KiB
TypeScript

import * as React from 'react';
import { IContainerModel } from '../../../Interfaces/IContainerModel';
import { DIMENSION_MARGIN } from '../../../utils/default';
import { GetAbsolutePosition, MakeBFSIterator } from '../../../utils/itertools';
import { TransformX } from '../../../utils/svg';
import { Dimension } from './Dimension';
interface IDimensionLayerProps {
containers: Map<string, IContainerModel>
roots: IContainerModel | IContainerModel[] | null
scale?: number
}
function GetDimensionsNodes(
containers: Map<string, IContainerModel>,
root: IContainerModel,
scale: number
): React.ReactNode[] {
const it = MakeBFSIterator(root, containers);
const dimensions: React.ReactNode[] = [];
let currentDepth = 0;
let min = Infinity;
let max = -Infinity;
let lastY = 0;
for (const { container, depth } of it) {
if (currentDepth !== depth) {
AddNewDimension(currentDepth, min, max, lastY, scale, '#000000', dimensions);
currentDepth = depth;
min = Infinity;
max = -Infinity;
}
const absoluteX = GetAbsolutePosition(containers, container)[0];
const x = TransformX(absoluteX, container.properties.width, container.properties.positionReference);
lastY = container.properties.y + container.properties.height;
if (x < min) {
min = x;
}
if (x > max) {
max = x;
}
}
AddNewDimension(currentDepth, min, max, lastY, scale, '#000000', dimensions);
return dimensions;
}
/**
* A layer containing all dimension
* @param props
* @returns
*/
export function DepthDimensionLayer(props: IDimensionLayerProps): JSX.Element {
let dimensions: React.ReactNode[] = [];
const scale = props.scale ?? 1;
if (Array.isArray(props.roots)) {
props.roots.forEach(child => {
dimensions.concat(GetDimensionsNodes(props.containers, child, scale));
});
} else if (props.roots !== null) {
dimensions = GetDimensionsNodes(props.containers, props.roots, scale);
}
return (
<g>
{dimensions}
</g>
);
}
function AddNewDimension(currentDepth: number, min: number, max: number, lastY: number, scale: number, color: string, dimensions: React.ReactNode[]): void {
const id = `dim-depth-${currentDepth}`;
const xStart = min;
const xEnd = max;
const y = lastY + (DIMENSION_MARGIN * (currentDepth + 1)) / scale;
const width = xEnd - xStart;
const text = width
.toFixed(0)
.toString();
if (width === 0) {
return;
}
dimensions.push(
<Dimension
key={id}
id={id}
xStart={xStart}
yStart={y}
xEnd={xEnd}
yEnd={y}
text={text}
scale={scale}
color={color}
/>
);
}