1 files changed, 85 insertions, 0 deletions
diff --git a/apps/web/src/lib/graphics/definitions/rectangle.ts b/apps/web/src/lib/graphics/definitions/rectangle.ts
new file mode 100644
index 00000000..4e7f78f6
--- /dev/null
+++ b/apps/web/src/lib/graphics/definitions/rectangle.ts
@@ -0,0 +1,85 @@
+import type { ParamDefinition } from "@/lib/params";
+import { applyAlignedStroke } from "../stroke";
+import { STROKE_ALIGN_PARAM, type GraphicStrokeAlign } from "./shared";
+import type { GraphicDefinition } from "../types";
+
+interface RectangleParams {
+	fill: string;
+	stroke: string;
+	strokeWidth: number;
+	strokeAlign: GraphicStrokeAlign;
+	cornerRadius: number;
+}
+
+const RECTANGLE_PARAMS: ParamDefinition<keyof RectangleParams & 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,
+	{
+		key: "cornerRadius",
+		label: "Corner radius",
+		type: "number",
+		default: 0,
+		min: 0,
+		max: 50,
+		step: 1,
+		shortLabel: "R",
+	},
+];
+
+export const rectangleGraphicDefinition: GraphicDefinition = {
+	id: "rectangle",
+	name: "Rectangle",
+	keywords: ["rectangle", "square", "box"],
+	params: RECTANGLE_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 drawWidth = Math.max(1, width - inset * 2);
+		const drawHeight = Math.max(1, height - inset * 2);
+		const radiusPercent = Math.max(0, Number(params.cornerRadius ?? 0));
+		const radius =
+			(Math.min(drawWidth, drawHeight) / 2) * Math.min(radiusPercent, 50) / 50;
+
+		ctx.clearRect(0, 0, width, height);
+		const path = new Path2D();
+		path.roundRect(inset, inset, drawWidth, drawHeight, radius);
+		ctx.fillStyle = fill;
+		ctx.fill(path);
+
+		if (strokeWidth > 0) {
+			applyAlignedStroke({
+				ctx,
+				path,
+				strokeWidth,
+				strokeAlign,
+				strokeColor: stroke,
+			});
+		}
+	},
+};