code_frag.txt

一段汇编写的动画

doc:
	成员变量
		COLORREF m_clrGrid[4][4];
	COLORREF m_clrCurrentColor;

BOOL CTstDocViewDoc::OnNewDocument()
{
	if (!CDocument::OnNewDocument())
		return FALSE;

	// TODO: add reinitialization code here
	// (SDI documents will reuse this document)

	for(int i=0;i<4;i++)
		for(int j=0;j<4;j++)
			m_clrGrid[i][j]=RGB(255,255,255);
	m_clrCurrentColor=RGB(255,0,0);

	return TRUE;
}
void CTstDocViewDoc::OnColorRed() 
{
	// TODO: Add your command handler code here
	m_clrCurrentColor=RGB(255,0,0);
}

void CTstDocViewDoc::OnUpdateColorRed(CCmdUI* pCmdUI) 
{
	// TODO: Add your command update UI handler code here
	pCmdUI->SetRadio(m_clrCurrentColor==RGB(255,0,0));
}

COLORREF CTstDocViewDoc::GetSquare(int i, int j)
{
	return m_clrGrid[i][j];
}

COLORREF CTstDocViewDoc::GetCurrentColor()
{
	return m_clrCurrentColor;
}

void CTstDocViewDoc::SetSquare(int i, int j, COLORREF color)
{
	m_clrGrid[i][j]=color;
	this->SetModifiedFlag(true);
	this->UpdateAllViews(NULL);
}


void CTstDocViewView::OnDraw(CDC* pDC)
{
	CTstDocViewDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	
	pDC->SetMapMode(MM_LOENGLISH);

	for(int i=0;i<4;i++){
		for(int j=0;j<4;j++){
			COLORREF color=pDoc->GetSquare(i,j);
			CBrush brush(color);
			int x1=(j*100)+50;
			int y1=(i*-100)-50;
			int x2=x1+100;
			int y2=y1-100;
			CRect rect(x1,y1,x2,y2);
			pDC->FillRect(rect,&brush);
		}
	}

	for(int x=50;x<=450;x+=100){
		pDC->MoveTo(x,-50);
		pDC->LineTo(x,-450);
	}
	for(int y=-50;y>=-450;y-=100){
		pDC->MoveTo(50,y);
		pDC->LineTo(450,y);
	}
}

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

	CClientDC dc(this);
	dc.SetMapMode(MM_LOENGLISH);
	CPoint pos=point;
	dc.DPtoLP(&pos);

	if(pos.x>=50 && pos.x<=450 && pos.y<=-50 && pos.y>=-450){
		int i=(-pos.y-50)/100;
		int j=(pos.x-50)/100;
		CTstDocViewDoc* pDoc=this->GetDocument();
		COLORREF clrCurrentColor=pDoc->GetCurrentColor();
		pDoc->SetSquare(i,j,clrCurrentColor);
	}
}