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- import memoize from 'lodash/memoize';
- /**
- * This is memoized because the viewBox is unlikely to change often
- * - but because it is computed from offset, any change to it would re-render all children.
- *
- * And because we have many readers of the viewBox, and update it only rarely,
- * then let's optimize with memoization.
- */
- export var calculateViewBox = memoize(function (offset) {
- return {
- x: offset.left,
- y: offset.top,
- width: offset.width,
- height: offset.height
- };
- }, function (offset) {
- return ['l', offset.left, 't', offset.top, 'w', offset.width, 'h', offset.height].join('');
- });
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