export interface RenderContext {
    fillStyle: string | CanvasGradient;
    strokeStyle: string;
    lineWidth: number;
    font: string;
    textAlign: CanvasTextAlign;
    textBaseline: CanvasTextBaseline;
    globalAlpha: number;
    lineDashOffset: number;
    lineJoin: CanvasLineJoin;
    lineCap: CanvasLineCap;
    save(): void;
    restore(): void;
    fillRect(x: number, y: number, w: number, h: number): void;
    strokeRect(x: number, y: number, w: number, h: number): void;
    clearRect(x: number, y: number, w: number, h: number): void;
    beginPath(): void;
    moveTo(x: number, y: number): void;
    lineTo(x: number, y: number): void;
    closePath(): void;
    rect(x: number, y: number, w: number, h: number): void;
    arc(x: number, y: number, radius: number, startAngle: number, endAngle: number, ccw?: boolean): void;
    quadraticCurveTo(cpx: number, cpy: number, x: number, y: number): void;
    bezierCurveTo(cp1x: number, cp1y: number, cp2x: number, cp2y: number, x: number, y: number): void;
    ellipse(x: number, y: number, rx: number, ry: number, rotation: number, startAngle: number, endAngle: number, ccw?: boolean): void;
    fill(): void;
    stroke(): void;
    clip(): void;
    fillText(text: string, x: number, y: number, maxWidth?: number): void;
    strokeText(text: string, x: number, y: number, maxWidth?: number): void;
    measureText(text: string): TextMetrics;
    setTransform(a: number, b: number, c: number, d: number, e: number, f: number): void;
    translate(x: number, y: number): void;
    rotate(angle: number): void;
    scale(sx: number, sy: number): void;
    setLineDash(segments: number[]): void;
    getLineDash(): number[];
    createLinearGradient(x0: number, y0: number, x1: number, y1: number): CanvasGradient;
    set globalCompositeOperation(op: GlobalCompositeOperation);
    get globalCompositeOperation(): GlobalCompositeOperation;
    drawImage(image: CanvasImageSource, dx: number, dy: number): void;
    drawImage(image: CanvasImageSource, dx: number, dy: number, dw: number, dh: number): void;
    flush(): void;
}
/** Thin wrapper over CanvasRenderingContext2D — zero overhead, just delegates */
export declare class Canvas2DRenderContext implements RenderContext {
    readonly ctx: CanvasRenderingContext2D;
    constructor(ctx: CanvasRenderingContext2D);
    get fillStyle(): string | CanvasGradient;
    set fillStyle(v: string | CanvasGradient);
    get strokeStyle(): string;
    set strokeStyle(v: string);
    get lineWidth(): number;
    set lineWidth(v: number);
    get font(): string;
    set font(v: string);
    get textAlign(): CanvasTextAlign;
    set textAlign(v: CanvasTextAlign);
    get textBaseline(): CanvasTextBaseline;
    set textBaseline(v: CanvasTextBaseline);
    get globalAlpha(): number;
    set globalAlpha(v: number);
    get lineDashOffset(): number;
    set lineDashOffset(v: number);
    get lineJoin(): CanvasLineJoin;
    set lineJoin(v: CanvasLineJoin);
    get lineCap(): CanvasLineCap;
    set lineCap(v: CanvasLineCap);
    get globalCompositeOperation(): GlobalCompositeOperation;
    set globalCompositeOperation(v: GlobalCompositeOperation);
    save(): void;
    restore(): void;
    fillRect(x: number, y: number, w: number, h: number): void;
    strokeRect(x: number, y: number, w: number, h: number): void;
    clearRect(x: number, y: number, w: number, h: number): void;
    beginPath(): void;
    moveTo(x: number, y: number): void;
    lineTo(x: number, y: number): void;
    closePath(): void;
    rect(x: number, y: number, w: number, h: number): void;
    arc(x: number, y: number, r: number, sa: number, ea: number, ccw?: boolean): void;
    quadraticCurveTo(cpx: number, cpy: number, x: number, y: number): void;
    bezierCurveTo(cp1x: number, cp1y: number, cp2x: number, cp2y: number, x: number, y: number): void;
    ellipse(x: number, y: number, rx: number, ry: number, rot: number, sa: number, ea: number, ccw?: boolean): void;
    fill(): void;
    stroke(): void;
    clip(): void;
    fillText(text: string, x: number, y: number, maxWidth?: number): void;
    strokeText(text: string, x: number, y: number, maxWidth?: number): void;
    measureText(text: string): TextMetrics;
    setTransform(a: number, b: number, c: number, d: number, e: number, f: number): void;
    translate(x: number, y: number): void;
    rotate(angle: number): void;
    scale(sx: number, sy: number): void;
    setLineDash(segments: number[]): void;
    getLineDash(): number[];
    createLinearGradient(x0: number, y0: number, x1: number, y1: number): CanvasGradient;
    drawImage(image: CanvasImageSource, dx: number, dy: number, dw?: number, dh?: number): void;
    /** No-op for Canvas 2D — drawing is immediate */
    flush(): void;
}