/**
 * BaseTool - Abstract base for extracted DrawToolCore tools
 *
 * Provides shared access to state objects via a ToolContext interface.
 *
 * NOTE: This is for the OLD DrawToolCore system.
 * The new SegmentationManager system has its own tools in manager/tools/.
 */
import type { IProtected, ICursorPage, IAnnotationCallbacks } from "../core/types";
import type { NrrdState } from "../coreTools/NrrdState";
import type { GuiState } from "../coreTools/GuiState";
import type { EventRouter } from "../eventRouter/EventRouter";
/**
 * Shared context injected into every legacy tool.
 * References are shared (not copied), so tools see the same state.
 */
export interface ToolContext {
    nrrd_states: NrrdState;
    gui_states: GuiState;
    protectedData: IProtected;
    cursorPage: ICursorPage;
    /** External annotation callbacks (Phase 2) */
    callbacks: IAnnotationCallbacks;
    /** EventRouter reference for mode/state queries. Set after initDrawToolCore(). */
    eventRouter?: EventRouter;
}
export declare abstract class BaseTool {
    protected ctx: ToolContext;
    constructor(ctx: ToolContext);
    setContext(ctx: ToolContext): void;
}