// mymfc3View.cpp : implementation of the CMymfc3View class
//

#include "stdafx.h"
#include "mymfc3.h"

#include "mymfc3Doc.h"
#include "mymfc3View.h"

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

/////////////////////////////////////////////////////////////////////////////
// CMymfc3View

IMPLEMENT_DYNCREATE(CMymfc3View, CScrollView)

BEGIN_MESSAGE_MAP(CMymfc3View, CScrollView)
	//{{AFX_MSG_MAP(CMymfc3View)
	ON_WM_KEYDOWN()
	ON_WM_LBUTTONDOWN()
	//}}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()

/////////////////////////////////////////////////////////////////////////////
// CMymfc3View construction/destruction

CMymfc3View::CMymfc3View() : m_rectEllipse(0, 0, 4000, -4000)
{
	// TODO: add construction code here
	m_nColor = GRAY_BRUSH;
}

CMymfc3View::~CMymfc3View()
{
}

BOOL CMymfc3View::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CScrollView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMymfc3View drawing

void CMymfc3View::OnDraw(CDC* pDC)
{
	pDC->SelectStockObject(m_nColor);
    pDC->Ellipse(m_rectEllipse);
}

void CMymfc3View::OnInitialUpdate()
{
	CScrollView::OnInitialUpdate();
    CSize sizeTotal(20000, 30000); // 20 by 30 cm
    CSize sizePage(sizeTotal.cx / 2, sizeTotal.cy / 2);
    CSize sizeLine(sizeTotal.cx / 50, sizeTotal.cy / 50);
    SetScrollSizes(MM_HIMETRIC, sizeTotal, sizePage, sizeLine);
}

/////////////////////////////////////////////////////////////////////////////
// CMymfc3View printing

BOOL CMymfc3View::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMymfc3View::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMymfc3View::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMymfc3View diagnostics

#ifdef _DEBUG
void CMymfc3View::AssertValid() const
{
	CScrollView::AssertValid();
}

void CMymfc3View::Dump(CDumpContext& dc) const
{
	CScrollView::Dump(dc);
}

CMymfc3Doc* CMymfc3View::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMymfc3Doc)));
	return (CMymfc3Doc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMymfc3View message handlers

void CMymfc3View::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
switch (nChar) {
    case VK_HOME:
        OnVScroll(SB_TOP, 0, NULL);
        OnHScroll(SB_LEFT, 0, NULL);
        break;
    case VK_END:
        OnVScroll(SB_BOTTOM, 0, NULL);
        OnHScroll(SB_RIGHT, 0, NULL);
        break;
    case VK_UP:
        OnVScroll(SB_LINEUP, 0, NULL);
        break;
    case VK_DOWN:
        OnVScroll(SB_LINEDOWN, 0, NULL);
        break;
    case VK_PRIOR:
        OnVScroll(SB_PAGEUP, 0, NULL);
        break;
    case VK_NEXT:
        OnVScroll(SB_PAGEDOWN, 0, NULL);
        break;
    case VK_LEFT:
        OnHScroll(SB_LINELEFT, 0, NULL);
        break;
    case VK_RIGHT:
        OnHScroll(SB_LINERIGHT, 0, NULL);
        break;
    default:
        break;
    }
}

void CMymfc3View::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
		CClientDC dc(this);
    OnPrepareDC(&dc);
    CRect rectDevice = m_rectEllipse;
    dc.LPtoDP(rectDevice);
    if (rectDevice.PtInRect(point)) {
        if (m_nColor == GRAY_BRUSH) {
            m_nColor = WHITE_BRUSH;
        }
        else {
            m_nColor = GRAY_BRUSH;
        }
        InvalidateRect(rectDevice);
    }
}