import type { Node } from '../Node';
import type { Group } from '../shapes/Group';
import type { FillStyle, StrokeStyle } from '../types';
export interface RenderContext {
    width: number;
    height: number;
    pixelRatio: number;
    background: string;
    focusedNodeId?: string | null;
    highContrast?: boolean;
    uiTheme?: import('../components/uiTheme').UiThemeTokens;
}
export declare abstract class Renderer {
    protected width: number;
    protected height: number;
    protected pixelRatio: number;
    protected background: string;
    protected focusedNodeId: string | null;
    protected highContrast: boolean;
    protected dirtyRegions: Array<{
        x: number;
        y: number;
        width: number;
        height: number;
    }>;
    protected fullRedraw: boolean;
    protected hasRendered: boolean;
    abstract init(container: HTMLElement, options: RenderContext): void;
    abstract resize(width: number, height: number, pixelRatio: number): void;
    abstract render(root: Group, cameraMatrix?: import('../utils').Matrix2D): void;
    abstract destroy(): void;
    abstract toDataURL(type?: string, quality?: number): string;
    abstract getElement(): HTMLElement | SVGSVGElement | HTMLCanvasElement;
    markDirty(x?: number, y?: number, w?: number, h?: number): void;
    clearDirty(): void;
    forceFullRedraw(): void;
    setRenderState(state: {
        focusedNodeId?: string | null;
        highContrast?: boolean;
    }): void;
    get needsFullRedraw(): boolean;
    protected applyFillStyle(_ctx: CanvasRenderingContext2D | SVGElement, fill: FillStyle, setFill: (value: string | CanvasGradient | CanvasPattern) => void): void;
    protected applyStrokeStyle(_ctx: CanvasRenderingContext2D, stroke: StrokeStyle, setStroke: (value: string | CanvasGradient | CanvasPattern) => void): void;
    protected applyShadow(ctx: CanvasRenderingContext2D, shadow: import('../types').Shadow | null): void;
    /** Traverse and draw scene graph */
    protected traverse(node: Node, drawFn: (node: Node) => void): void;
}