viewdibview.cpp

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// ViewDIBView.cpp : implementation of the CViewDIBView class
//

#include "stdafx.h"
#include "ViewDIB.h"

#include "ViewDIBDoc.h"
#include "ViewDIBView.h"
#include "MACRO.h"

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

/////////////////////////////////////////////////////////////////////////////
// CViewDIBView

IMPLEMENT_DYNCREATE(CViewDIBView, CScrollView)

BEGIN_MESSAGE_MAP(CViewDIBView, CScrollView)
	//{{AFX_MSG_MAP(CViewDIBView)
	ON_WM_LBUTTONDOWN()
	ON_WM_LBUTTONUP()
	ON_WM_MOUSEMOVE()
	ON_WM_RBUTTONDOWN()
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CScrollView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CScrollView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CViewDIBView construction/destruction

CViewDIBView::CViewDIBView()
{

	// TODO: add construction code here

}

CViewDIBView::~CViewDIBView()
{
}

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

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CViewDIBView drawing

void CViewDIBView::OnDraw(CDC* pDC)
{
	CViewDIBDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	
	if(!pDoc->m_pDib->IsEmpty())
		pDoc->m_pDib->Display(pDC,0,0);
	DrawArea(pDC);
}

void CViewDIBView::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();

	CViewDIBDoc* pDoc=GetDocument();
	int width,height;
	if(pDoc!=NULL){
		pDoc->OnNewDocument();
	}

	width=pDoc->m_pDib->GetWidth();
    height=pDoc->m_pDib->GetHeight();

	CSize sizeTotal;
	sizeTotal.cx=sizeTotal.cy=0;
	if(width)
		sizeTotal.cx=width;
	if(height)
		sizeTotal.cy=height;
	// TODO: calculate the total size of this view
	SetScrollSizes(MM_TEXT, sizeTotal);
}

/////////////////////////////////////////////////////////////////////////////
// CViewDIBView printing

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

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

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

/////////////////////////////////////////////////////////////////////////////
// CViewDIBView diagnostics

#ifdef _DEBUG
void CViewDIBView::AssertValid() const
{
	CScrollView::AssertValid();
}

void CViewDIBView::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

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

/////////////////////////////////////////////////////////////////////////////
// CViewDIBView message handlers












void CViewDIBView::DrawArea(CDC *pDC)
{
	CPen pen(PS_DOT,1,RGB(0,0,0));
	CPen* pOldPen=pDC->SelectObject(&pen);
	pDC->SetROP2(R2_NOT);

	if(m_AreaMode==POLYAREA){
		int i;
		pDC->MoveTo(PolyPoint[3]);
		for(i=0;i<4;i++){
			pDC->LineTo(PolyPoint[i]);
			pDC->Rectangle(PolyPoint[i].x-5,PolyPoint[i].y-5,
                           PolyPoint[i].x+5,PolyPoint[i].y+5);
		    pDC->MoveTo(PolyPoint[i]);
		}
	}
}

void CViewDIBView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CDC* pDC=GetDC();

	if((m_AreaMode==POLYAREA)&&(m_DrawStartFlag==DRAWSTART)&&(m_ActivePoint!=-1)){
//		Invalidate();
		DrawArea(pDC);
  		PolyPoint[m_ActivePoint].x=point.x;
		PolyPoint[m_ActivePoint].y=point.y;
		DrawArea(pDC);
	}
	
	CScrollView::OnMouseMove(nFlags, point);
}

void CViewDIBView::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_DrawStartFlag=DRAWSTART;

	Invalidate();
    
	if(m_AreaMode==POLYAREA){
    	m_ActivePoint=-1;
		for(int i=0;i<4;i++){
	    	if((abs(PolyPoint[i].x-point.x)<=5)
		    	&&(abs(PolyPoint[i].y-point.y)<=5))
			    m_ActivePoint=i;
		}
	}
	
	CScrollView::OnLButtonDown(nFlags, point);
}

void CViewDIBView::OnLButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	m_DrawStartFlag=DRAWEND;
	
	CScrollView::OnLButtonUp(nFlags, point);
}





void CViewDIBView::OnRButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	CDC* pDC=GetDC();
	DrawArea(pDC);
	if(m_AreaMode==POLYAREA){
		for(int i=0;i<4;i++){
			PolyPoint[i].x=0;
		    PolyPoint[i].y=0;
		}
	}
	Invalidate();
	
	m_AreaMode=NULLAREA;
	CScrollView::OnRButtonDblClk(nFlags, point);
}