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#pragma once
#include "nmData_global.h"
class nmDataPlotContextProvider;
// 数据层访问绘图上下文的入口
// nmData只保存抽象接口，不直接依赖nmPlot中的具体绘图类
class NM_DATA_EXPORT nmDataPlotContext
{
public:
// 注册绘图上下文提供者
static void setProvider(nmDataPlotContextProvider* pProvider);
// 获取绘图上下文提供者
static nmDataPlotContextProvider* provider();
private:
static nmDataPlotContextProvider* s_pProvider;
};