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fix: normalize linear element points on restore (#3633)

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David Luzar 2021-05-24 20:35:53 +02:00 • committed by GitHub
parent d201d0be1b
commit 0bbb4535cf
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2 changed files with 41 additions and 22 deletions
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19
src/element/linearElementEditor.ts
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@ -415,26 +415,31 @@ export class LinearElementEditor {
return [rotatedX - element.x, rotatedY - element.y];
}
// element-mutating methods
// ---------------------------------------------------------------------------
/**
* Normalizes line points so that the start point is at [0,0]. This is
* expected in various parts of the codebase.
* expected in various parts of the codebase. Also returns new x/y to account
* for the potential normalization.
*/
static normalizePoints(element: NonDeleted<ExcalidrawLinearElement>) {
static getNormalizedPoints(element: ExcalidrawLinearElement) {
const { points } = element;
const offsetX = points[0][0];
const offsetY = points[0][1];
mutateElement(element, {
return {
points: points.map((point, _idx) => {
return [point[0] - offsetX, point[1] - offsetY] as const;
}),
x: element.x + offsetX,
y: element.y + offsetY,
});
};
}
// element-mutating methods
// ---------------------------------------------------------------------------
static normalizePoints(element: NonDeleted<ExcalidrawLinearElement>) {
mutateElement(element, LinearElementEditor.getNormalizedPoints(element));
}
static movePointByOffset(