import { type DfPoint } from '../../ng-draw-flow.interfaces';
import { type DfPanzoomModel } from './pan-zoom.interfaces';
import { type DfPanSizeDimensions, type DfPanZoomOptions } from './pan-zoom.options';
export interface DfContainerOffsets {
    readonly offsetX: number;
    readonly offsetY: number;
    readonly translateX: number;
    readonly translateY: number;
}
export interface DfPanZoomUsableRectBounds {
    readonly minX: number;
    readonly minY: number;
    readonly maxX: number;
    readonly maxY: number;
}
export interface DfPanZoomWorldRectBounds {
    readonly minX: number;
    readonly minY: number;
    readonly maxX: number;
    readonly maxY: number;
}
export declare function clampScale(scale: number, min: number, max: number): number;
export declare function moveBy(camera: DfPanzoomModel, deltaX: number, deltaY: number): DfPanzoomModel;
export declare function clampByPanSize(camera: DfPanzoomModel, panSize: Pick<DfPanSizeDimensions, 'height' | 'width'>): DfPanzoomModel;
export declare function clampByUsableRect(camera: DfPanzoomModel, usableRect: DfPanZoomUsableRectBounds, viewportSize: Pick<DOMRectReadOnly, 'height' | 'width'>, zeroPoint: DfPoint): DfPanzoomModel;
export declare function zoomAtPoint(camera: DfPanzoomModel, point: DfPoint, targetScale: number, options: Pick<DfPanZoomOptions, 'maxZoom' | 'minZoom'>): DfPanzoomModel;
export declare function getViewportZeroPoint(rootSize: Pick<DOMRectReadOnly, 'height' | 'width'>, options: Pick<DfPanZoomOptions, 'leftPosition' | 'topPosition'>): DfPoint;
export declare function getContainerOffsets(rootSize: Pick<DOMRectReadOnly, 'height' | 'width'>, options: Pick<DfPanZoomOptions, 'leftPosition' | 'topPosition'>): DfContainerOffsets;
export declare function getViewportCenter(camera: Pick<DfPanzoomModel, 'x' | 'y' | 'zoom'>, panSize: Pick<DfPanSizeDimensions, 'height' | 'width'>): DfPoint;
export declare function alignCameraToWorldRect(camera: DfPanzoomModel, targetRect: Pick<DfPanZoomWorldRectBounds, 'minX' | 'minY'>, viewportSize: Pick<DOMRectReadOnly, 'height' | 'width'>, options: Pick<DfPanZoomOptions, 'leftPosition' | 'topPosition'>): DfPanzoomModel;