TanTan
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43 lines
1.6 KiB
Plaintext
43 lines
1.6 KiB
Plaintext
import { px } from '../../value/types/numbers/units.mjs';
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function pixelsToPercent(pixels, axis) {
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if (axis.max === axis.min)
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return 0;
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return (pixels / (axis.max - axis.min)) * 100;
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}
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/**
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* We always correct borderRadius as a percentage rather than pixels to reduce paints.
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* For example, if you are projecting a box that is 100px wide with a 10px borderRadius
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* into a box that is 200px wide with a 20px borderRadius, that is actually a 10%
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* borderRadius in both states. If we animate between the two in pixels that will trigger
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* a paint each time. If we animate between the two in percentage we'll avoid a paint.
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*/
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const correctBorderRadius = {
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correct: (latest, node) => {
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if (!node.target)
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return latest;
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/**
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* If latest is a string, if it's a percentage we can return immediately as it's
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* going to be stretched appropriately. Otherwise, if it's a pixel, convert it to a number.
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*/
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if (typeof latest === "string") {
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if (px.test(latest)) {
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latest = parseFloat(latest);
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}
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else {
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return latest;
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}
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}
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/**
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* If latest is a number, it's a pixel value. We use the current viewportBox to calculate that
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* pixel value as a percentage of each axis
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*/
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const x = pixelsToPercent(latest, node.target.x);
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const y = pixelsToPercent(latest, node.target.y);
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return `${x}% ${y}%`;
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},
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};
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export { correctBorderRadius, pixelsToPercent };
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//# sourceMappingURL=scale-border-radius.mjs.map
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