import { ChartLocation, getUnicodeText, textTrim, withInBounds } from '../../common/utils/helper';import { ILegendRegions } from '../../common/model/interface';import { ChartDrawType, ChartSeriesType, LegendMode } from '../../chart/utils/enum';import { Alignment, LegendPosition, LegendTitlePosition } from '../../common/utils/enum';import { Size, measureText, Rect } from '@syncfusion/ej2-svg-base';import { Series } from '../../chart/series/chart-series';import { legendClick, legendRender, regSub, regSup } from '../../common/model/constants';import { measureLegendTemplateSize } from '../../common/utils/helper';import { IStockLegendClickEventArgs, IStockLegendRenderEventArgs, StockChartBorder, StockChartFont, StockMargin } from '../model/base';import { Browser, isNullOrUndefined } from '@syncfusion/ej2-base';import { StockChart } from '../../stock-chart/index';import { Axis } from '../../chart/axis/axis';import { Property, Complex, ChildProperty} from '@syncfusion/ej2-base';import { ContainerPadding, Location } from '../../common/model/base';import { StockChartFontModel, StockChartBorderModel, StockMarginModel } from '../model/base-model';import { LocationModel } from '../../common';import { ContainerPaddingModel } from '../../common/model/base-model';

/**
 * Interface for a class StockChartLegendSettings
 */
export interface StockChartLegendSettingsModel {

    /**
     * If set to true, legend will be visible.
     *
     * @default false
     */

    visible?: boolean;

    /**
     * The height of the legend in pixels.
     *
     * @default null
     */

    height?: string;

    /**
     * The width of the legend in pixels.
     *
     * @default null
     */

    width?: string;

    /**
     * Specifies the location of the legend, relative to the Stock chart.
     * If x is 20, legend moves by 20 pixels to the right of the Stock chart. It requires the `position` to be `Custom`.
     * ```html
     * <div id='StockChart'></div>
     * ```
     * ```typescript
     * let stockChart: StockChart = new StockChart({
     * ...
     *   legendSettings: {
     *     visible: true,
     *     position: 'Custom',
     *     location: { x: 100, y: 150 },
     *   },
     * ...
     * });
     * stockChart.appendTo('#StockChart');
     * ```
     */
    location?: LocationModel;

    /**
     * Position of the legend in the Stock chart are,
     * * Auto: Places the legend based on area type.
     * * Top: Displays the legend at the top of the stock chart.
     * * Left: Displays the legend at the left of the stock chart.
     * * Bottom: Displays the legend at the bottom of the stock chart.
     * * Right: Displays the legend at the right of the stock chart.
     * * Custom: Displays the legend  based on the given x and y values.
     *
     * @default 'Auto'
     */

    position?: LegendPosition;

    /**
     * Mode of legend items.
     * * Series: Legend items generated based on series count.
     * * Point: Legend items generated based on unique data points.
     * * Range: Legend items generated based on range color mapping property.
     * * Gradient: Single linear bar generated based on range color mapping property.
     * This property is applicable for chart component only.
     */
    mode?: LegendMode;

    /**
     * Option to customize the padding around the legend items.
     *
     * @default 8
     */

    padding?: number;

    /**
     * Option to customize the padding between legend items.
     *
     * @default null
     */

    itemPadding?: number;

    /**
     * Legend in stock chart can be aligned as follows:
     * * Near: Aligns the legend to the left of the stock chart.
     * * Center: Aligns the legend to the center of the stock chart.
     * * Far: Aligns the legend to the right of the stock chart.
     *
     * @default 'Center'
     */

    alignment?: Alignment;

    /**
     * Options to customize the legend text.
     */
    textStyle?: StockChartFontModel;

    /**
     * Shape height of the legend in pixels.
     *
     * @default 10
     */

    shapeHeight?: number;

    /**
     * Shape width of the legend in pixels.
     *
     * @default 10
     */

    shapeWidth?: number;

    /**
     * Options to customize the border of the legend.
     */
    border?: StockChartBorderModel;

    /**
     *  Options to customize left, right, top and bottom margins of the stock chart.
     */

    margin?: StockMarginModel;

    /**
     *  Options to customize left, right, top and bottom padding for legend container of the stock chart.
     */

    containerPadding?: ContainerPaddingModel;

    /**
     * Padding between the legend shape and text in stock chart.
     *
     * @default 8
     */

    shapePadding?: number;

    /**
     * The background color of the legend that accepts value in hex and rgba as a valid CSS color string in stock chart.
     *
     * @default 'transparent'
     */

    background?: string;

    /**
     * Opacity of the legend in stock chart.
     *
     * @default 1
     */

    opacity?: number;

    /**
     * If set to true, series' visibility collapses based on the legend visibility in stock chart.
     *
     * @default true
     */

    toggleVisibility?: boolean;

    /**
     * Description for legends in stock chart.
     *
     * @default null
     */

    description?: string;

    /**
     * TabIndex value for the legend in stock chart.
     *
     * @default 3
     */

    tabIndex?: number;

    /**
     * Title for legends in stock chart.
     *
     * @default null
     */

    title?: string;

    /**
     * Options to customize the legend title in stock chart.
     */
    titleStyle?: StockChartFontModel;

    /**
     * legend title position in stock chart.
     *
     * @default 'Top'
     */

    titlePosition?: LegendTitlePosition;

    /**
     * maximum width for the legend title in stock chart.
     *
     * @default 100
     */

    maximumTitleWidth?: number;

    /**
     * If set to true, legend will be visible using pages in stock chart.
     *
     * @default true
     */

    enablePages?: boolean;

    /**
     * If set to true, legend will be Reversed in stock chart.
     *
     * @default false
     */

    isInversed?: boolean;

    /**
     * Specifies the custom template used to render the content of the legend item for the current series.
     * The template can contain any valid HTML element or layout. When set, the provided template replaces the default legend text for the series.
     *
     * @default null.
     */

    template?: string | Function;

}

/**
 * Interface for a class StockLegend
 */
export interface StockLegendModel {

}