import { CellRenderer, TextRenderer, GraphicsContext } from '@lumino/datagrid';
/**
 * A cell renderer which renders data values as bars.
 */
export declare class BarRenderer extends TextRenderer {
    /**
     * Construct a new bar renderer.
     *
     * @param options - The options for initializing the renderer.
     */
    constructor(options?: BarRenderer.IOptions);
    /**
     * The CSS color for drawing the bar.
     */
    readonly barColor: CellRenderer.ConfigOption<string>;
    /**
     * The value of the bar, between 0. and 1.
     */
    readonly barValue: CellRenderer.ConfigOption<number>;
    /**
     * The orientation of the bar, can be horizontal or vertical.
     */
    readonly orientation: CellRenderer.ConfigOption<BarRenderer.Orientation>;
    /**
     * The horizontal alignment of the bar, default is 'bottom'.
     */
    readonly barVerticalAlignment: CellRenderer.ConfigOption<TextRenderer.VerticalAlignment>;
    /**
     * The vertical alignment of the bar, default is 'left'.
     */
    readonly barHorizontalAlignment: CellRenderer.ConfigOption<TextRenderer.HorizontalAlignment>;
    /**
     * Whether to draw the text on the bar or not, default is true.
     */
    readonly showText: CellRenderer.ConfigOption<boolean>;
    /**
     * Paint the content for a cell.
     *
     * @param gc - The graphics context to use for drawing.
     *
     * @param config - The configuration data for the cell.
     */
    paint(gc: GraphicsContext, config: CellRenderer.CellConfig): void;
    /**
     * Prepare the graphics context for drawing a column of cells.
     *
     * @param gc - The graphics context to prepare.
     *
     * @param row - The index of the first row to be rendered.
     *
     * @param col - The index of the column to be rendered.
     *
     * @param field - The field descriptor for the column, or `null`.
     */
    prepare(gc: GraphicsContext, config: CellRenderer.CellConfig): void;
    /**
     * Draw the bar.
     *
     * @param gc - The graphics context to use for drawing.
     *
     * @param config - The configuration data for the cell.
     */
    drawBar(gc: GraphicsContext, config: CellRenderer.CellConfig): void;
}
/**
 * The namespace for the `BarRenderer` class statics.
 */
export declare namespace BarRenderer {
    /**
     * A type alias for the supported orientation modes.
     */
    type Orientation = 'horizontal' | 'vertical';
    /**
     * An options object for initializing a bar renderer.
     */
    interface IOptions extends TextRenderer.IOptions {
        /**
         * The background color for the cells.
         *
         * The default is `''`.
         */
        barColor?: CellRenderer.ConfigOption<string>;
        /**
         * The value of the bar, between 0. and 1..
         *
         * The default is `0.`.
         */
        barValue?: CellRenderer.ConfigOption<number>;
        /**
         * The orientation of the bar, can be horizontal or vertical.
         *
         * The default is `horizontal`.
         */
        orientation?: CellRenderer.ConfigOption<BarRenderer.Orientation>;
        /**
         * The horizontal alignment of the bar, can be bottom, center or top.
         *
         * The default is `bottom`.
         */
        barVerticalAlignment?: CellRenderer.ConfigOption<TextRenderer.VerticalAlignment>;
        /**
         * The vertical alignment of the bar, can be left, center or right.
         *
         * The default is `left`.
         */
        barHorizontalAlignment?: CellRenderer.ConfigOption<TextRenderer.HorizontalAlignment>;
        /**
         * Whether to draw the text on the bar or not.
         *
         * The default is true.
         */
        showText?: CellRenderer.ConfigOption<boolean>;
    }
}