// caijianView.cpp : implementation of the CCaijianView class
//

#include "stdafx.h"
#include "caijian.h"

#include "caijianDoc.h"
#include "caijianView.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CCaijianView

IMPLEMENT_DYNCREATE(CCaijianView, CView)

BEGIN_MESSAGE_MAP(CCaijianView, CView)
	//{{AFX_MSG_MAP(CCaijianView)
	ON_COMMAND(ID_EDIT_CLEAR_ALL, OnEditClearAll)
	ON_COMMAND(ID_EDIT_COPY, OnEditCopy)
	ON_WM_LBUTTONDOWN()
	ON_WM_MOUSEMOVE()
	ON_WM_LBUTTONUP()
	ON_WM_RBUTTONUP()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CCaijianView construction/destruction

CCaijianView::CCaijianView()
{
	// TODO: add construction code here
    m_bCaptured=false;
	m_bDefineRect=false;
	m_bDefinePointV=false;
}

CCaijianView::~CCaijianView()
{
}

BOOL CCaijianView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CCaijianView drawing

void CCaijianView::OnDraw(CDC* pDC)
{
	CCaijianDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	int l,t,r,b;
	l=min(TopLeft.x,BottomRight.x);
	r=max(TopLeft.x,BottomRight.x);
	t=min(TopLeft.y,BottomRight.y);
	b=max(TopLeft.y,BottomRight.y);
	CRect rect(l,t,r,b);
	//定義裁減矩形區(qū)域，并賦值

	CPen penDot,penSolid;
    penSolid.CreatePen(PS_SOLID,1,RGB(0,0,0));
	pDC->SelectObject(penSolid);
	pDC->TextOut(10,10,"重新定義多邊形的點(diǎn)坐標(biāo)，（鼠標(biāo)左鍵定義點(diǎn)坐標(biāo)，右鍵結(jié)束）");
	pDC->TextOut(10,35,"重新定義裁減的區(qū)域，（按住鼠標(biāo)左鍵不放，移動鼠標(biāo)，畫出一個(gè)矩形框）");
	//屏幕上的提示信息

	if(PointArray.GetSize())
	{
		//當(dāng)自定義多邊形點(diǎn)坐標(biāo)時(shí)，在各個(gè)點(diǎn)坐標(biāo)處畫一個(gè)小圓，以顯示點(diǎn)的位置
		int i;
		for(i=0;i<PointArray.GetSize();i++)
		{
			pDC->MoveTo(PointArray.GetAt(i));
			CRect ellipseRect;
			ellipseRect.top = PointArray.GetAt(i).y - 2;
			ellipseRect.bottom = PointArray.GetAt(i).y + 2;
			ellipseRect.left = PointArray.GetAt(i).x - 2;
			ellipseRect.right = PointArray.GetAt(i).x + 2;
			pDC->Ellipse(ellipseRect);
		}
	}

	if(pDoc->bCutRect) 
	{
		//判斷是否裁減，若是，則根據(jù)裁減區(qū)域進(jìn)行裁減
		pDoc->m_grahics.CutRect(rect);
		pDoc->bCutRect=false;
	}
	pDoc->m_grahics.DrawPloyon(pDC);
	//畫出多邊形
	
}

void CCaijianView::OnInitialUpdate() 
{
	CView::OnInitialUpdate();
	CSize sizeTotal;
	sizeTotal.cx = sizeTotal.cy = 100;
	
	CCaijianDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	//設(shè)置初始的裁減區(qū)域
	int minX = pDoc->m_grahics.Point[0].x , minY = pDoc->m_grahics.Point[0].y;
	int maxX = pDoc->m_grahics.Point[0].x , maxY = pDoc->m_grahics.Point[0].y;
	for(int i=1;i<pDoc->m_grahics.PointCount;i++)
	{
		if(minX > pDoc->m_grahics.Point[i].x)
			minX = pDoc->m_grahics.Point[i].x;
		if(minY > pDoc->m_grahics.Point[i].y)
			minY = pDoc->m_grahics.Point[i].y;
		if(maxX < pDoc->m_grahics.Point[i].x)
			maxX = pDoc->m_grahics.Point[i].x;
		if(maxY < pDoc->m_grahics.Point[i].y)
			maxY = pDoc->m_grahics.Point[i].y;
	}
	TopLeft = CPoint(minX,minY);
	BottomRight = CPoint(maxX,maxY);
	// TODO: Add your specialized code here and/or call the base class
	
}

/////////////////////////////////////////////////////////////////////////////
// CCaijianView printing

BOOL CCaijianView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CCaijianView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CCaijianView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CCaijianView diagnostics

#ifdef _DEBUG
void CCaijianView::AssertValid() const
{
	CView::AssertValid();
}

void CCaijianView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CCaijianDoc* CCaijianView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCaijianDoc)));
	return (CCaijianDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CCaijianView message handlers


void CCaijianView::OnEditClearAll() 
{
	// TODO: Add your command handler code here
	m_bDefinePointV = true;
	
}

void CCaijianView::OnEditCopy() 
{
	// TODO: Add your command handler code here
	m_bDefineRect = true;
	
}

void CCaijianView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	//對鼠標(biāo)按下左鍵的相應(yīng)
	if(m_bDefineRect)
    {	
		//如果是自定義裁減的區(qū)域的操作
		SetCapture();//捕獲鼠標(biāo)
		m_bCaptured = TRUE;
		CDC *dc=GetDC();
		CRect rect(TopLeft,BottomRight);
		dc->SelectStockObject(WHITE_PEN);

		
		dc->Rectangle(rect);
		InvalidateRect(rect,false);
		TopLeft = point;

		::SetCursor(::LoadCursor(NULL, IDC_CROSS));//設(shè)置鼠標(biāo)樣子為十字形的
	}
	if(m_bDefinePointV)
	{
		//如果是自定義點(diǎn)坐標(biāo)的操作
		PointArray.Add(point);
		CRect ellipseRect;
		ellipseRect.top = point.y - 2;
		ellipseRect.bottom = point.y + 2;
		ellipseRect.left = point.x - 2;
		ellipseRect.right = point.x + 2;
		InvalidateRect(ellipseRect,true);
	}
	CView::OnLButtonDown(nFlags, point);
}

void CCaijianView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	//對鼠標(biāo)移動時(shí)的相應(yīng)
	if (m_bCaptured) 
	{
		//畫出相應(yīng)的矩形裁減邊框
		CDC *dc=GetDC();
		CRect rect(TopLeft,BottomRight);
		dc->SelectStockObject(WHITE_PEN);

		
		dc->Rectangle(rect);//用白色擦除原先的矩形邊框
		InvalidateRect(rect,false);
		BottomRight=point;
		
		CRect newrect(TopLeft,BottomRight);
		CPen pen;
		pen.CreatePen(PS_DOT,1,RGB(0,0,0));
		dc->SelectObject(pen);
		dc->Rectangle(newrect);//用虛線畫出新的矩形邊框
    }
	CView::OnMouseMove(nFlags, point);
}

void CCaijianView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	//對鼠標(biāo)放開左鍵的相應(yīng)
    if (m_bCaptured) 
	{
		::ReleaseCapture();
        m_bCaptured = false;
		m_bDefineRect = false;
	}
	CView::OnLButtonUp(nFlags, point);
}

void CCaijianView::OnRButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	//對鼠標(biāo)放開右鍵的相應(yīng)
	if(m_bDefinePointV)
	{
		CCaijianDoc* pDoc = GetDocument();
		ASSERT_VALID(pDoc);
		pDoc->m_grahics.PointCount=PointArray.GetSize();
		if(pDoc->m_grahics.Point)
			delete pDoc->m_grahics.Point;
		pDoc->m_grahics.Point = new CPoint[pDoc->m_grahics.PointCount];
		for(int i=0;i<pDoc->m_grahics.PointCount;i++)
			pDoc->m_grahics.Point[i]=PointArray.GetAt(i);//對Point點(diǎn)坐標(biāo)重新賦值
		PointArray.RemoveAll();
		m_bDefinePointV=false;
		CRect rect;
		this->GetClientRect(rect);
		InvalidateRect(rect);
		
		//獲取新的初始裁減矩形范圍
		int minX = pDoc->m_grahics.Point[0].x , minY = pDoc->m_grahics.Point[0].y;
		int maxX = pDoc->m_grahics.Point[0].x , maxY = pDoc->m_grahics.Point[0].y;
		for(i=1;i<pDoc->m_grahics.PointCount;i++)
		{
			if(minX > pDoc->m_grahics.Point[i].x)
				minX = pDoc->m_grahics.Point[i].x;
			if(minY > pDoc->m_grahics.Point[i].y)
				minY = pDoc->m_grahics.Point[i].y;
			if(maxX < pDoc->m_grahics.Point[i].x)
				maxX = pDoc->m_grahics.Point[i].x;
			if(maxY < pDoc->m_grahics.Point[i].y)
				maxY = pDoc->m_grahics.Point[i].y;
		}
		TopLeft = CPoint(minX,minY);
		BottomRight = CPoint(maxX,maxY);
	}
	CView::OnRButtonUp(nFlags, point);
}