downview.cpp

实现了2D地图编辑器的基本功能

// DownView.cpp : 实现文件
//

#include "stdafx.h"
#include "MapEditor.h"
#include "DownView.h"
MESH1 m_mesh[50][50];
extern POINT bp;
extern CString m_Pathname;
extern CString m_name;
bool flag =  false;
int x,y;
extern int l;
extern int num[50][4];

// CDownView

IMPLEMENT_DYNCREATE(CDownView, CView)

CDownView::CDownView()
{
}

CDownView::~CDownView()
{
}

BEGIN_MESSAGE_MAP(CDownView, CView)
    ON_WM_LBUTTONDOWN()
END_MESSAGE_MAP()


// CDownView 绘图

void CDownView::OnDraw(CDC* pDC)
{
	CDocument* pDoc = GetDocument();
	// TODO: 在此添加绘制代码
    int i;
	int j,m,n;
    int k = 0;
    CBrush   m_brush;
	CPen     m_pen;
    CRect    m_rect;
    HBITMAP     m_hbmp;
    HDC         hdc;
    hdc    = CreateCompatibleDC(pDC->m_hDC);
    m_brush.CreateSolidBrush(RGB(0,0,0));
	m_pen.CreatePen(PS_SOLID,1,RGB(0,0,255));

    this->GetClientRect(&m_rect);
	pDC->FillRect(&CRect(0,0,m_rect.right,m_rect.bottom),&m_brush);m = 0;

    m = 0;
    for(i = 0;  i < m_rect.bottom ; i = i + 32)
	{
        n = 0;
		for(j = 0; j < m_rect.right; j = j + 32)
		{ 
			m_mesh[m][n].i = 0;
			m_mesh[m][n].rect = CRect(j,i, j+32,i+32);
			//k = k + 1;
			n = n + 1;
		}
		m = m + 1;
	}
    x = m - 1;
    y = n - 1;
    pDC->SelectObject(&m_pen);
	m_hbmp =( HBITMAP)LoadImage(::AfxGetInstanceHandle(),//
        "1.bmp",//文件名
				                             IMAGE_BITMAP,		//位图方式
				                                     0,//图形宽
				                                     0,//图形高
				   LR_LOADFROMFILE|LR_CREATEDIBSECTION//方式
				);
    SelectObject(hdc,m_hbmp);
    //BitBlt(pDC->m_hDC,0,0,32,32, hdc,0,0,SRCCOPY);
    for(i=0;i<l;i++) 
            BitBlt(pDC->m_hDC,num[i][1]*32,num[i][0]*32,32,32, hdc,num[i][2],num[i][3],SRCCOPY);

    
    pDC->SelectObject(&m_pen);
    for(i = 0; i < m_rect.bottom; i = i + 32)
	{
		pDC->MoveTo(0, i);
		pDC->LineTo((int)m_rect.right,i);
	}

	for(j = 0; j < (int)m_rect.right; j = j + 32)
	{
		pDC->MoveTo(j, 0);
		pDC->LineTo(j,(int)m_rect.bottom);
	}
}


// CDownView 诊断

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

#ifndef _WIN32_WCE
void CDownView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}
#endif
#endif //_DEBUG


// CDownView 消息处理程序

void CDownView::OnLButtonDown(UINT nFlags, CPoint point)
{
    // TODO: 在此添加消息处理程序代码和/或调用默认值
     CClientDC   dc(this);
    HDC         hdc;
    HBITMAP     m_hbmp;
	int i, j;
	bool flag =  false;
    hdc    = CreateCompatibleDC(dc.m_hDC);
	m_hbmp =( HBITMAP)LoadImage(::AfxGetInstanceHandle(),//
				                              m_Pathname,//文件名
				                             IMAGE_BITMAP,		//位图方式
				                                     0,//图形宽
				                                     0,//图形高
				   LR_LOADFROMFILE|LR_CREATEDIBSECTION//方式
				);
    SelectObject(hdc,m_hbmp);

    for(i = 0; i < x; i++ )
		  {
			  for(j = 0; j < y ; j++)
			  {
				  if(PtInRect(&m_mesh[i][j].rect,point))
				  {
					  BitBlt(dc.m_hDC,m_mesh[i][j].rect.left,m_mesh[i][j].rect.top,32,32, hdc,bp.x,bp.y,SRCCOPY);
                      m_mesh[i][j].i=1;
                      m_mesh[i][j].point.x=bp.x;
                      m_mesh[i][j].point.y=bp.y;
                      num[l][0]=i;
                      num[l][1]=j;
                      num[l][2]=bp.x;
                      num[l][3]=bp.y;
                      l++;
					  flag = true;
					  break;
				  }
			  }
			  if(flag)
			  {
				  break;
			  }
		  }

    CView::OnLButtonDown(nFlags, point);
}