#include "stdafx.h"
#include "SigmaView.h"
#include "SectionDoc.h"
#include "ItemSelect.h"
#include "ActionMoveItem.h"
#include "ActionMirrorItem.h"

static int Mirror(CSigmaView * pView, bool bHorizontal);
static void OffsetSelected(CPositionList & selectionSet, CSigmaDoc * pDoc, double dx, double dy);

extern "C" __declspec(dllexport)
int HorizontalMirror(CSigmaView * pView)
{
	return Mirror(pView, true);
}

extern "C" __declspec(dllexport)
int VerticalMirror(CSigmaView * pView)
{
	return Mirror(pView, false);
}

static int Mirror(CSigmaView * pView, bool bHorizontal)
{
	if (pView == NULL)
		return -1;

	CSigmaDoc * pDoc = pView->m_pDoc;
	if (pDoc == NULL)
		return -1;

	if (pDoc->IsEmptySelectionSet())
		return -1;

	//X轴镜像
	float mt[6];
	memset(mt, 0, sizeof(float) * 6);

	if (bHorizontal)
	{
		mt[0] = -1.0f;
		mt[3] = 1.0f;
	}
	else 
	{
		mt[0] = 1.0f;
		mt[3] = -1.0f;
	}

	CRect8 rbt = pDoc->GetRectOfSelectedSet();
	COne* pOne;
	POSITION pt, pk;
	CPositionList plist;
	pDoc->GetSelectionSet(plist);
	pt = plist.GetHeadPosition();
	while (pt)
	{
		pk = plist.GetNext(pt);
		pOne = pDoc->GetDraw()->GetAt(pk);
		pOne->Transform(&pDoc->GetDC(), mt);
	}
	CRect8 ret = pDoc->GetRectOfSelectedSet();
	CPoint2D point = rbt.CenterPoint();
	point -= ret.CenterPoint();
	OffsetSelected(plist, pDoc, point.x0, point.y0);

	//for redo/undo
	//mt[4] = (float)point.x0;
	//mt[5] = -(float)point.y0;
	CActionMirrorItem * pAction = new CActionMirrorItem(pDoc, ID_ORDER_HORIZONTAL_MIRROR, plist, mt, point.x0, point.y0);
	//pAction->SetDC(&(pDoc->m_zoom));
	pDoc->SetActionItem(pAction);
	pDoc->Modified();

	return 1;
}

static void OffsetSelected(CPositionList & selectionSet, CSigmaDoc * pDoc, double dx, double dy)
{
	if (selectionSet.IsEmpty())
		return;

	BOOL bIsPointText = FALSE;
	/*
	if (selectionSet.GetCount() == 1)
	{
		//为了能直接移动点的文本项
		POSITION pos = selectionSet.GetHead();
		COne* pOne = (COne*)pDoc->GetDraw()->GetAt(pos);
		if (pOne->GetType() == DOUBLEFOX_POINT && m_bPointTextSelected == TRUE)
		{
			bIsPointText = TRUE;
			//GetDoc()->SetActionItem(new CActionBackupItem(GetDoc(),IDS_STRING_ACTION_MOVE,m_selection));

			if (pOne->HowToViewPoint == NULL)
			{
				pOne->HowToViewPoint = new CHowToViewPoint;
				if (pOne->GetLayer()->HowToViewPoint)	//层修饰
					*(pOne->HowToViewPoint) = *(pOne->GetLayer()->HowToViewPoint);
			}
			pOne->HowToViewPoint->m_delt.cx += dx;
			pOne->HowToViewPoint->m_delt.cy += dy;
		}
	}
	*/

	//if (!bIsPointText)
	{
		COne* pOne;
		POSITION pos, pt;
		pos = selectionSet.GetHeadPosition();
		while (pos != NULL)
		{
			pt = selectionSet.GetNext(pos);
			pOne = (COne*)pDoc->GetDraw()->GetAt(pt);
			pOne->Offset(dx, dy);
		}

		//for redo/undo
		CPoint2D point(dx, dy);
		//CActionOffsetItem *pAction=new CActionOffsetItem(GetDoc(), IDS_STRING_ACTION_MOVE, m_selection, point);
		//GetDoc()->SetActionItem(pAction);
	}

	//ReloadTrackerPath();
}