feat: GridRenderer

This commit is contained in:
AndyLnd
2019-10-07 21:22:03 +02:00
parent 2a20a8be74
commit 7e12648818
2 changed files with 35 additions and 0 deletions
+33
View File
@@ -0,0 +1,33 @@
import React, {memo} from 'react';
import {useStoreState} from 'easy-peasy';
const GridRenderer = memo(({gap = 32}) => {
const {
width,
height,
transform: [x, y, scale],
} = useStoreState(s => s);
const scaledGap = gap * scale;
const xStart = x % scaledGap;
const yStart = y % scaledGap;
const lineCountX = Math.ceil(width / scaledGap) + 1;
const lineCountY = Math.ceil(height / scaledGap) + 1;
const xValues = Array.from({length: lineCountX}, (_, index) => `M${index * scaledGap + xStart} 0 V${height}`);
const yValues = Array.from({length: lineCountY}, (_, index) => `M0 ${index * scaledGap + yStart} H${width}`);
const path = [...xValues, ...yValues].join(' ');
return (
<svg width={width} height={height} style={{position: 'absolute', top: 0, left: 0}}>
<path fill="none" stroke="black" strokeWidth={.1} d={path} />
</svg>
);
});
GridRenderer.displayName = 'GridRenderer';
export default GridRenderer;