import { BaseTool } from "./BaseTool";
import type { ToolContext } from "./BaseTool";
import type { SliceRenderHostDeps } from "./ToolHost";
/**
 * Manages slice rendering pipeline: slice setup, canvas rendering, and view helpers.
 *
 * Extracted from NrrdTools.ts to reduce its size.
 * Follows the same BaseTool + ToolContext + Callbacks pattern as other tools.
 */
export declare class SliceRenderPipeline extends BaseTool {
    private callbacks;
    private initState;
    constructor(ctx: ToolContext, callbacks: SliceRenderHostDeps);
    /**
     * Reset initState to true (called from NrrdTools.reset() when switching datasets).
     */
    resetInitState(): void;
    /****************************Slice Setup****************************************************/
    setDisplaySlicesBaseOnAxis(): void;
    private loadDisplaySlicesArray;
    resetDisplaySlicesStatus(): void;
    /**
     * Swap slice data for register/origin switching without resetting
     * slice index, zoom (sizeFactor), or pan position.
     */
    switchPreservingView(): void;
    private setupConfigs;
    private setMainPreSlice;
    private setOriginCanvasAndPre;
    afterLoadSlice(): void;
    private updateMaxIndex;
    /****************************Rendering****************************************************/
    /**
     * Phase 3: Reload all mask layers from MaskVolume using buffer reuse
     * Replaces the old reloadMaskToLayer approach
     */
    reloadMasksFromVolume(): void;
    /******************************** redraw display canvas  ***************************************/
    /**
     * Redraw current contrast image to display canvas.
     * It is more related to change the contrast slice image's window width or center.
     */
    redrawDisplayCanvas(): void;
    redrawMianPreOnDisplayCanvas(): void;
    /**
     * flip the canvas to a correct position.
     * This is because the slice canvas from threejs is not in a correct 2D postion.
     * Thus, everytime when we redraw the display canvas, we need to flip to draw the origin canvas from threejs.
     * Under different axis(sagittal, Axial, Coronal), the flip orientation is different.
     */
    flipDisplayImageByAxis(): void;
    /**
     * Set the empty canvas width and height based on the axis (pixel distance not the mm), to reduce duplicate codes.
     *
     * @param axis
     */
    setEmptyCanvasSize(axis?: "x" | "y" | "z"): void;
    /**
     * Clear masks on drawingCanvas layers.
     */
    resetLayerCanvas(): void;
    /****************************View/Canvas Helpers****************************************************/
    /**
     * Resize the draw and display canvas size based on the input size factor number.
     * @param factor number
     */
    resizePaintArea(factor: number): void;
    /**
     * Reset the draw and display canvases layout after mouse pan.
     * If no params in, then center the draw and display canvases.
     * @param l number, Offset to the left
     * @param t number, Offset to the top
     */
    resetPaintAreaUIPosition(l?: number, t?: number): void;
    /**
     * Update the original canvas size, allow set to threejs load one (pixel distance not the mm).
     * Then update the changedWidth and changedHeight based on the sizeFactor.
     */
    updateOriginAndChangedWH(): void;
    /**
     * Keep all contrast slice index to same.
     * Synchronize the slice indexes of all the contrasts so that they are consistent with the main slice's index.
     */
    setSyncsliceNum(): void;
}