import { ITerminalSession } from 'jupyter-js-services';
import { Message } from 'phosphor-messaging';
import { ResizeMessage, Widget } from 'phosphor-widget';
/**
 * A widget which manages a terminal session.
 */
export declare class TerminalWidget extends Widget {
    /**
     * Construct a new terminal widget.
     *
     * @param options - The terminal configuration options.
     */
    constructor(options?: TerminalWidget.IOptions);
    /**
     * The terminal session associated with the widget.
     */
    session: ITerminalSession;
    /**
     * Get the font size of the terminal in pixels.
     */
    /**
     * Set the font size of the terminal in pixels.
     */
    fontSize: number;
    /**
     * Get the background color of the terminal.
     */
    /**
     * Set the background color of the terminal.
     */
    background: string;
    /**
     * Get the text color of the terminal.
     */
    /**
     * Set the text color of the terminal.
     */
    color: string;
    /**
     * Get whether the bell is shown.
     */
    /**
     * Set whether the bell is shown.
     */
    visualBell: boolean;
    /**
     * Get whether to focus on a bell event.
     */
    /**
     * Set whether to focus on a bell event.
     */
    popOnBell: boolean;
    /**
     * Get the size of the scrollback buffer in the terminal.
     */
    /**
     * Set the size of the scrollback buffer in the terminal.
     */
    scrollback: number;
    /**
     * Dispose of the resources held by the terminal widget.
     */
    dispose(): void;
    /**
     * Process a message sent to the widget.
     *
     * @param msg - The message sent to the widget.
     *
     * #### Notes
     * Subclasses may reimplement this method as needed.
     */
    processMessage(msg: Message): void;
    /**
     * Set the size of the terminal when attached if dirty.
     */
    protected onAfterAttach(msg: Message): void;
    /**
     * Set the size of the terminal when shown if dirty.
     */
    protected onAfterShow(msg: Message): void;
    /**
     * Dispose of the terminal when closing.
     */
    protected onCloseRequest(msg: Message): void;
    /**
     * On resize, use the computed row and column sizes to resize the terminal.
     */
    protected onResize(msg: ResizeMessage): void;
    /**
     * A message handler invoked on an `'update-request'` message.
     */
    protected onUpdateRequest(msg: Message): void;
    /**
     * A message handler invoked on an `'fit-request'` message.
     */
    protected onFitRequest(msg: Message): void;
    /**
     * Create the terminal object.
     */
    private _initializeTerm();
    /**
     * Handle a message from the terminal session.
     */
    private _onMessage(sender, msg);
    /**
     * Use the dummy terminal to measure the row and column sizes.
     */
    private _snapTermSizing();
    /**
     * Resize the terminal based on the computed geometry.
     *
     * The parent offset dimensions should be `-1` if unknown.
     */
    private _resizeTerminal(offsetWidth, offsetHeight);
    private _term;
    private _sheet;
    private _dummyTerm;
    private _fontSize;
    private _dirty;
    private _rowHeight;
    private _colWidth;
    private _background;
    private _color;
    private _box;
    private _session;
}
/**
 * The namespace for `TerminalWidget` class statics.
 */
export declare namespace TerminalWidget {
    /**
     * Options for the terminal widget.
     */
    interface IOptions {
        /**
         * The font size of the terminal in pixels.
         */
        fontSize?: number;
        /**
         * The background color of the terminal.
         */
        background?: string;
        /**
         * The text color of the terminal.
         */
        color?: string;
        /**
         * Whether to blink the cursor.  Can only be set at startup.
         */
        cursorBlink?: boolean;
        /**
         * Whether to show a bell in the terminal.
         */
        visualBell?: boolean;
        /**
         * Whether to focus on a bell event.
         */
        popOnBell?: boolean;
        /**
         * The size of the scrollback buffer in the terminal.
         */
        scrollback?: number;
    }
}