import type { Gradient, ImageElementClip, ImageElementFilters, LineStyleType, PPTElementOutline, PPTElementShadow, PPTImageElement, PPTLineElement, SlideBackgroundImageSize } from '../types/slides';
/** Line elements store stroke thickness in `width` (not a bounding-box width). */
export declare const lineStrokeWidth: (element: Pick<PPTLineElement, 'width'>) => number;
export declare const shadowPaint: (shadow?: PPTElementShadow | null) => {
    shadowColor?: undefined;
    shadowBlur?: undefined;
    shadowOffsetX?: undefined;
    shadowOffsetY?: undefined;
    shadowOpacity?: undefined;
} | {
    shadowColor: string;
    shadowBlur: number;
    shadowOffsetX: number;
    shadowOffsetY: number;
    shadowOpacity: number;
};
export declare const outlineDashArray: (style: LineStyleType | undefined, width: number) => number[] | undefined;
export declare const lineDashArray: (style: LineStyleType, strokeWidth: number) => number[] | undefined;
export declare const outlineStrokePaint: (outline?: PPTElementOutline) => {
    strokeEnabled: false;
    stroke?: undefined;
    strokeWidth?: undefined;
    strokeScaleEnabled?: undefined;
    lineCap?: undefined;
    miterLimit?: undefined;
    dash?: undefined;
    dashEnabled?: undefined;
} | {
    stroke: string;
    strokeWidth: number;
    strokeScaleEnabled: boolean;
    lineCap: 'butt';
    miterLimit: number;
    dash: number[];
    dashEnabled: boolean;
    strokeEnabled: true;
};
export declare const imageOpacity: (filters?: ImageElementFilters) => number;
export declare const imageCropRect: (clip: ImageElementClip | undefined, imgW: number, imgH: number) => {
    x: number;
    y: number;
    width: number;
    height: number;
} | undefined;
export declare const imageCornerRadius: (element: PPTImageElement) => number;
export declare const imageClipKind: (element: PPTImageElement) => 'rect' | 'ellipse' | 'polygon';
type PathCtx = {
    beginPath: () => void;
    moveTo: (x: number, y: number) => void;
    lineTo: (x: number, y: number) => void;
    closePath: () => void;
    rect: (x: number, y: number, width: number, height: number) => void;
    roundRect: (x: number, y: number, width: number, height: number, radii: number) => void;
    ellipse: (x: number, y: number, radiusX: number, radiusY: number, rotation: number, startAngle: number, endAngle: number) => void;
};
export declare const drawSvgPolyline: (ctx: Pick<PathCtx, 'moveTo' | 'lineTo' | 'closePath'>, d: string) => void;
export declare const drawImageClip: (ctx: PathCtx, element: PPTImageElement) => void;
export declare const imageClipPathData: (element: PPTImageElement) => string | undefined;
export declare const linearGradientPaint: (width: number, height: number, gradient: Gradient) => {
    fillLinearGradientStartPoint: {
        x: number;
        y: number;
    };
    fillLinearGradientEndPoint: {
        x: number;
        y: number;
    };
    fillLinearGradientColorStops: (string | number)[];
};
export declare const radialGradientPaint: (width: number, height: number, gradient: Gradient, origin?: 'center' | 'css') => {
    fillRadialGradientStartPoint: {
        x: number;
        y: number;
    };
    fillRadialGradientStartRadius: number;
    fillRadialGradientEndPoint: {
        x: number;
        y: number;
    };
    fillRadialGradientEndRadius: number;
    fillRadialGradientColorStops: (string | number)[];
};
export declare const shapeFillPaint: (width: number, height: number, fill: string, gradient?: Gradient) => {
    fillLinearGradientStartPoint: {
        x: number;
        y: number;
    };
    fillLinearGradientEndPoint: {
        x: number;
        y: number;
    };
    fillLinearGradientColorStops: (string | number)[];
} | {
    fillRadialGradientStartPoint: {
        x: number;
        y: number;
    };
    fillRadialGradientStartRadius: number;
    fillRadialGradientEndPoint: {
        x: number;
        y: number;
    };
    fillRadialGradientEndRadius: number;
    fillRadialGradientColorStops: (string | number)[];
} | {
    fillEnabled: false;
    fill?: undefined;
} | {
    fillEnabled?: undefined;
    fill: string;
};
export declare const patternCoverPaint: (imgW: number, imgH: number, boxW: number, boxH: number) => {
    fillPatternScaleX: number;
    fillPatternScaleY: number;
    fillPatternX: number;
    fillPatternY: number;
    fillPatternRepeat: string;
};
export declare const fitRect: (imgW: number, imgH: number, boxW: number, boxH: number, mode: Exclude<SlideBackgroundImageSize, 'repeat'>) => {
    x: number;
    y: number;
    width: number;
    height: number;
};
export declare const linePolylinePoints: (element: PPTLineElement) => number[] | null;
export declare const canvasFromBitmap: (bitmap: ImageBitmap) => HTMLCanvasElement;
/** Konva's config types list HTMLImageElement; runtime also accepts canvas. */
export declare const patternImageSource: (bitmap: ImageBitmap) => HTMLImageElement;
export {};