5dbcebf7a2
- Fix router import path in main.js - Handle Django REST Framework pagination format in API calls - Add getTemplates function to project API - Restart frontend development server
46 lines
1.2 KiB
TypeScript
46 lines
1.2 KiB
TypeScript
import type { FabricObject } from 'fabric';
|
|
import { ActiveSelection, Group } from 'fabric';
|
|
|
|
export function getObjectsByTarget(target: FabricObject) {
|
|
const objects = new Set<FabricObject>();
|
|
const canvas = target.canvas;
|
|
if (!canvas) return objects;
|
|
const children =
|
|
target instanceof ActiveSelection ? target.getObjects() : [target];
|
|
|
|
canvas.forEachObject((o) => {
|
|
if (!o.isOnScreen()) return;
|
|
if (!o.visible) return;
|
|
if (o.constructor == Group) {
|
|
collectObjectsByGroup(objects, o);
|
|
return;
|
|
}
|
|
objects.add(o);
|
|
});
|
|
|
|
deleteObjectsByList(objects, children);
|
|
return objects;
|
|
}
|
|
|
|
function deleteObjectsByList(objects: Set<FabricObject>, list: FabricObject[]) {
|
|
for (const target of list) {
|
|
if (target.constructor == Group) {
|
|
deleteObjectsByList(objects, (target as Group).getObjects());
|
|
} else {
|
|
objects.delete(target);
|
|
}
|
|
}
|
|
}
|
|
|
|
function collectObjectsByGroup(objects: Set<FabricObject>, g: Group) {
|
|
const children = g.getObjects();
|
|
for (const child of children) {
|
|
if (!child.visible) continue;
|
|
if (child.constructor == Group) {
|
|
collectObjectsByGroup(objects, child);
|
|
continue;
|
|
}
|
|
objects.add(child);
|
|
}
|
|
}
|