#include "stdafx.h"
#include "SigmaView.h"
#include "SectionDoc.h"
#include "ItemArc.h"
//此文件指定包含圆弧、弦、扇形接口

static CItemArc * getItemArc(CSigmaView * pView)
{
	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return NULL;

	CItemArc * arcItem = dynamic_cast<CItemArc *>(pItem);

	return arcItem;
}

//type 绘制的图元的类型 0--圆弧  1--弦  2--扇形
extern "C" __declspec(dllexport)
int Arc_SetType(CSigmaView * pView, int type)
{
	if (pView == NULL)
		return -1;

	CItemArc * pItem = getItemArc(pView);
	if (pItem == NULL)
		return -1;

	if (type == 0)
	{
		pItem->SetState(CArc::drawArc);
		return 1;
	}
	else if (type == 1)
	{
		pItem->SetState(CArc::drawChord);
		return 1;
	}
	else if (type == 2)
	{
		pItem->SetState(CArc::drawPie);
		return 1;
	}
	return -1;
}