/**
 * PriorityTextViewer - 优先级文本渲染 viewer
 * 用于展示优先级标签（P0-P4），带有对应的颜色和背景色
 */
import type { CellViewer, ViewerRenderContext, PriorityTextViewerData } from './types';
/**
 * PriorityTextViewer 在单元格中渲染优先级标签
 * 展示形如 P0、P1、P2 等带颜色背景的标签
 */
declare class PriorityTextViewer implements CellViewer<PriorityTextViewerData> {
    readonly type = "priority-text";
    /** 空值占位符 */
    private readonly emptyValue;
    /**
     * 绘制优先级标签内容
     */
    draw(context: ViewerRenderContext, data: PriorityTextViewerData): void;
    /**
     * 绘制优先级标签
     */
    private drawPriorityTag;
    /**
     * 绘制空值占位文本
     */
    private drawEmptyText;
    /**
     * 绘制圆角矩形
     */
    private drawRoundedRect;
}
export default PriorityTextViewer;
