/**
 * PanTool - Right-click pan/drag navigation
 *
 * Extracted from DrawToolCore.paintOnCanvas() closure.
 * Handles right-click drag to reposition the canvas view.
 */
import { BaseTool } from "./BaseTool";
import type { ToolContext } from "./BaseTool";
import type { PanHostDeps } from "./ToolHost";
export declare class PanTool extends BaseTool {
    /** Right mouse button currently held */
    private rightClicked;
    /** Pan drag offset X (clientX − canvas.offsetLeft at drag start) */
    private panMoveInnerX;
    /** Pan drag offset Y (clientY − canvas.offsetTop at drag start) */
    private panMoveInnerY;
    private callbacks;
    /**
     * Bound handler reference for pointermove so we can add/remove it.
     * Arrow function preserves `this` binding.
     */
    private readonly boundPointerMove;
    constructor(ctx: ToolContext, callbacks: PanHostDeps);
    /** Whether a pan drag is currently active */
    get isActive(): boolean;
    /**
     * Called on right-click pointerdown.
     * Captures initial offsets and registers pointermove listener.
     */
    onPointerDown(e: MouseEvent): void;
    /**
     * Called on pointerup (button === 2).
     * Cleans up listeners and restores cursor.
     */
    onPointerUp(e: MouseEvent, defaultCursor: string): void;
    /**
     * Called on pointerleave while pan is active.
     * Resets state and removes listener.
     */
    onPointerLeave(): void;
    /** Reset pan state (called when paintOnCanvas re-initializes) */
    reset(): void;
    /**
     * Pointermove handler — updates canvas position during drag.
     */
    private handlePointerMove;
}