import { CanvasNodeTooltipConfig, CanvasNodeTooltipProps } from '../utils/portalHoverEvents';
import { CanvasTextOverflow } from '../utils/textOverflow';
import { DrawBatcher } from '../core/DrawBatcher';
import { CanvasNode } from '../core/CanvasNode';

export type CanvasTextOverflowMode = 'visible' | 'hidden';
export type CanvasTextAutoTooltip = boolean | (CanvasNodeTooltipProps & {
    enabled?: boolean;
    text?: string | ((fullText: string) => string | null);
    mouseEnterDelay?: number;
    mouseLeaveDelay?: number;
});
export interface CanvasTextOptions {
    font?: string;
    fontSize?: number;
    lineHeightPx?: number;
    color?: string;
    wordWrap?: boolean;
    lineHeight?: number;
    overflow?: CanvasTextOverflowMode;
    textOverflow?: CanvasTextOverflow;
    ellipsis?: string;
    maxLines?: number;
    autoTooltip?: CanvasTextAutoTooltip;
}
export declare class CanvasText extends CanvasNode {
    text: string;
    font: string;
    color: string;
    fontSize: number | undefined;
    lineHeightPx: number | undefined;
    wordWrap: boolean;
    lineHeight: number;
    overflow: CanvasTextOverflowMode;
    textOverflow: CanvasTextOverflow;
    ellipsis: string;
    maxLines: number | undefined;
    autoTooltip: CanvasTextAutoTooltip | undefined;
    private lastMeasureKey;
    private cachedLines;
    private cachedLinesKey;
    private lastPaintedTextWidth;
    constructor(id: string, text: string, options?: CanvasTextOptions);
    measure(ctx: CanvasRenderingContext2D): void;
    private measureWordWrap;
    private measureSingleLineClamp;
    private measureSingleLine;
    protected getLastPaintedTextWidth(): number;
    getTooltip(): CanvasNodeTooltipConfig | undefined;
    private computeIsTruncated;
    private getResolvedMaxLines;
    private isSingleLineClampEnabled;
    private isMultilineClampEnabled;
    onPaint(batcher: DrawBatcher, ctx: CanvasRenderingContext2D): void;
    private paintMultiline;
    private paintSingleLine;
}
export declare function invalidateTextCache(): void;