59 lines
1.5 KiB
TypeScript
59 lines
1.5 KiB
TypeScript
import { ExcalidrawElement } from "../element/types";
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import { getElementAbsoluteCoords, hitTest } from "../element";
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import { AppState } from "../types";
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export const hasBackground = (type: string) =>
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type === "rectangle" || type === "ellipse" || type === "diamond";
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export const hasStroke = (type: string) =>
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type === "rectangle" ||
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type === "ellipse" ||
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type === "diamond" ||
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type === "arrow" ||
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type === "line";
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export const hasText = (type: string) => type === "text";
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export function getElementAtPosition(
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elements: readonly ExcalidrawElement[],
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appState: AppState,
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x: number,
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y: number,
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zoom: number,
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) {
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let hitElement = null;
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// We need to to hit testing from front (end of the array) to back (beginning of the array)
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for (let i = elements.length - 1; i >= 0; --i) {
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if (elements[i].isDeleted) {
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continue;
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}
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if (hitTest(elements[i], appState, x, y, zoom)) {
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hitElement = elements[i];
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break;
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}
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}
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return hitElement;
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}
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export function getElementContainingPosition(
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elements: readonly ExcalidrawElement[],
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x: number,
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y: number,
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) {
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let hitElement = null;
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// We need to to hit testing from front (end of the array) to back (beginning of the array)
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for (let i = elements.length - 1; i >= 0; --i) {
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if (elements[i].isDeleted) {
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continue;
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}
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const [x1, y1, x2, y2] = getElementAbsoluteCoords(elements[i]);
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if (x1 < x && x < x2 && y1 < y && y < y2) {
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hitElement = elements[i];
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break;
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}
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}
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return hitElement;
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}
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