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import type { ParamDefinition } from "@/lib/params";
import { applyAlignedStroke } from "../stroke";
import { STROKE_ALIGN_PARAM, type GraphicStrokeAlign } from "./shared";
import type { GraphicDefinition } from "../types";
interface EllipseParams {
fill: string;
stroke: string;
strokeWidth: number;
strokeAlign: GraphicStrokeAlign;
}
const ELLIPSE_PARAMS: ParamDefinition<keyof EllipseParams & string>[] = [
{
key: "fill",
label: "Fill",
type: "color",
default: "#ffffff",
},
{
key: "stroke",
label: "Color",
type: "color",
default: "#000000",
group: "stroke",
},
{
key: "strokeWidth",
label: "Width",
type: "number",
default: 0,
min: 0,
max: 64,
step: 1,
shortLabel: "W",
group: "stroke",
},
STROKE_ALIGN_PARAM,
];
export const ellipseGraphicDefinition: GraphicDefinition = {
id: "ellipse",
name: "Ellipse",
keywords: ["ellipse", "circle", "oval"],
params: ELLIPSE_PARAMS,
render({ ctx, params, width, height }) {
const fill = String(params.fill ?? "#ffffff");
const stroke = String(params.stroke ?? "#000000");
const strokeWidth = Math.max(0, Number(params.strokeWidth ?? 0));
const strokeAlign = (params.strokeAlign ?? "center") as GraphicStrokeAlign;
const inset = strokeAlign === "center" ? strokeWidth / 2 : 0;
const centerX = width / 2;
const centerY = height / 2;
const radiusX = Math.max(1, width / 2 - inset);
const radiusY = Math.max(1, height / 2 - inset);
ctx.clearRect(0, 0, width, height);
const path = new Path2D();
path.ellipse(centerX, centerY, radiusX, radiusY, 0, 0, Math.PI * 2);
ctx.fillStyle = fill;
ctx.fill(path);
if (strokeWidth > 0) {
applyAlignedStroke({
ctx,
path,
strokeWidth,
strokeAlign,
strokeColor: stroke,
});
}
},
};
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