#include "stdafx.h"
#include "SigmaView.h"
#include "SectionDoc.h"
#include "ItemGrid.h"
#include "MxnFormat\AxisLayout.h"
using namespace NItem;

static CItemEditGrid * GetItemEditGridFromView(CSigmaView * pView)
{
	if (pView == NULL)
		return 0;

	CItem * pItem = pView->GetItem();
	if (pItem == NULL)
		return 0;

	CItemEditGrid * itemGrid = dynamic_cast<CItemEditGrid *>(pItem);
	if (itemGrid == NULL)
		return 0;

	return itemGrid;
}

extern "C" __declspec(dllexport)
int RectangularCSGrid_GetStepAndRange(CSigmaView * pView, RectangularCSGridData * pData)
{
	CItemEditGrid * pItem = GetItemEditGridFromView(pView);
	if (pItem == NULL)
		return -1;

	return pItem->GetStepAndRange(pData);
}

extern "C" __declspec(dllexport)
int RectangularCSGrid_Create(CSigmaView * pView, RectangularCSGridData * pData, HDC hdcMem)
{	
	CItemEditGrid * pItem = GetItemEditGridFromView(pView);
	if (pItem == NULL)
		return -1;
	CDC *pDC = CDC::FromHandle(hdcMem);
	return pItem->Create(pData, pDC);
}
extern "C" __declspec(dllexport)
int GridGetStepAndRange(double left, double bottom, double right, double top, RectangularCSGridData * pData)
{
	if (pData == NULL)
		return  -1;

	pData->left = left;
	pData->top = top;
	pData->right = right;
	pData->bottom = bottom;

	//自动计算步长
	CAxisLayout al(left, right, 1);
	TIntervalStep<double> sx = al.sd;
	double step = min(sx.step, al.sd.step);
	pData->stepX = pData->stepY = step;
	pData->textHeight = step / 40.0;
	pData->borderThickness = pData->textHeight / 2.0;
	return 1;
}