/**
 * Text selection: track anchor/focus, overlay selected cells, extract text, copy.
 *
 * Selection operates in screen-space on the FrameBuffer — it doesn't know
 * about nodes or scroll offsets. The overlay is applied as a post-paint
 * pass before diffing, using Attr.Inverse XOR to highlight.
 */
import { type FrameBuffer } from "./frame-buffer.js";
export interface SelectionPos {
    col: number;
    row: number;
}
export interface SelectionState {
    anchor: SelectionPos | null;
    focus: SelectionPos | null;
}
export declare function createSelection(): SelectionState;
export declare function clearSelection(state: SelectionState): void;
/** Normalize anchor/focus into reading-order start/end. */
export declare function selectionRange(state: SelectionState): {
    endCol: number;
    endRow: number;
    startCol: number;
    startRow: number;
} | null;
/** Toggle Attr.Inverse on selected cells in the buffer. */
export declare function applySelectionOverlay(buf: FrameBuffer, state: SelectionState): void;
/** Extract text from selected cells, joining rows with newlines. */
export declare function getSelectedText(buf: FrameBuffer, state: SelectionState): string;
/** Copy text to system clipboard via OSC 52. */
export declare function copyToClipboard(text: string, write: (s: string) => void): void;
//# sourceMappingURL=selection.d.ts.map