import { ViewStyle } from 'react-native';
import { ShadowConfig, LayoutMode } from './DbItemCard.types';
/** 默认常量 */
export declare const ITEM_CARD_DEFAULTS: {
    numColumns: number;
    itemSpacing: number;
    rowSpacing: number;
    sideSpacing: number;
    borderRadius: number;
    backgroundColor: string;
    cardHeight: number;
    cardWidthHorizontal: number;
    activeOpacity: number;
    padding: number;
};
/** 阴影配置 */
export declare const SHADOW_CONFIGS: Record<'none' | 'sm' | 'md' | 'lg', ShadowConfig>;
/** 计算卡片宽度 */
export declare const calculateCardWidth: (numColumns: number, itemSpacing: number, sideSpacing: number, screenWidth?: number) => number;
/** 判断是否为一行的最后一个 */
export declare const isRowLastItem: (index: number, numColumns: number) => boolean;
/** 判断是否为一行的第一个 */
export declare const isRowFirstItem: (index: number, numColumns: number) => boolean;
/** 获取卡片边距样式 */
export declare const getCardMarginStyle: (index: number, numColumns: number, itemSpacing: number, rowSpacing: number, layoutMode?: LayoutMode) => ViewStyle;
/** 基础样式 */
export declare const styles: {
    card: {
        overflow: "hidden";
    };
    cardContent: {
        flex: number;
    };
    disabled: {
        opacity: number;
    };
    gridContainer: {
        flexDirection: "row";
        flexWrap: "wrap";
    };
    waterfallContainer: {
        flexDirection: "row";
    };
    waterfallColumn: {
        flex: number;
    };
    waterfallScrollContainer: {
        flexGrow: number;
    };
    horizontalContainer: {
        flexDirection: "row";
    };
    listContainer: {
        flexDirection: "column";
    };
    scrollContainer: {
        flexGrow: number;
    };
};