datashowview.cpp

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	//显示辅助菜单
	CMenu menu;
	if(menu.CreatePopupMenu())
	{
		if(!m_bfrozen)
			menu.AppendMenu(MF_ENABLED|MF_STRING,1001,"冻结屏幕");
		else
			menu.AppendMenu(MF_ENABLED|MF_STRING,1001,"取消冻结");
		menu.AppendMenu(MF_SEPARATOR,0,"");
		menu.AppendMenu(MF_ENABLED|MF_STRING,1006,"清除窗口");
		if(m_bfrozen)
		{
			menu.AppendMenu(MF_SEPARATOR,0,"");
			if(m_selfrom!=-1)
			{
				menu.AppendMenu(MF_ENABLED|MF_STRING,1002,"拷贝HEX码");
				menu.AppendMenu(MF_ENABLED|MF_STRING,1003,"拷贝ASCII码");
				menu.AppendMenu(MF_SEPARATOR,0,"");
			}
			menu.AppendMenu(MF_ENABLED|MF_STRING,1004,"全部选中");
			menu.AppendMenu(MF_SEPARATOR,0,"");
			menu.AppendMenu(MF_ENABLED|MF_STRING,1005,"选择特殊字符");
		}
		POINT pt;
		GetCursorPos(&pt);
		menu.TrackPopupMenu(TPM_RIGHTBUTTON,pt.x,pt.y,this);
	}
	CView ::OnRButtonUp(nFlags, point);
}
////////////////////////////////////////////////////////////
//函数：OnMouseMove；功能，处理鼠标移动的操作
////////////////////////////////////////////////////////////
void CDataShowView::OnMouseMove(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if(m_bpointing)
	{
	//如果正在选择特殊字符，则在鼠标移动的同时，指出当前指向的字符
		//方法是给这个字符加一个边框！
		RECT rect1;
		GetClientRect(&rect1);
		int curline=(rect1.bottom-point.y)/15;//(point.y+10)/15;
		curline=GetScrollPos(SB_VERT)-curline;
		if(curline<0)
			curline=0;
		int curchar=point.x>=m_bytesperline*24?m_bytesperline-1:point.x/24;
		curchar+=curline*m_bytesperline;
		if(curchar>=m_bytes.GetSize())
			curchar=m_bytes.GetSize()-1;
		if(curchar!=m_oldcharpos)
		{
			RECT rect;
			CDC *pdc=GetDC();
			CPen *oldpen;
			if(m_oldcharpos!=-1)
			{
				CPen pen;
				if(m_selfrom!=-1 && m_oldcharpos >=m_selfrom &&
					m_oldcharpos<=m_selto)
					pen.CreatePen(PS_SOLID,1,m_color_selectback);
				else
					pen.CreatePen(PS_SOLID,1,m_color_normalback);
				oldpen=pdc->SelectObject(&pen);

				rect.left=(m_oldcharpos%m_bytesperline)*24;
				rect.right=rect.left+16;
				//rect.top=m_oldcharpos/m_bytesperline+m_linesshown-GetScrollPos(SB_VERT)-1;
				rect.top=rect1.bottom-(GetScrollPos(SB_VERT)-m_oldcharpos/m_bytesperline+1)*15;
				//rect.top*=15;
				rect.bottom=rect.top+15;
				//rect.left--;
				//rect.top--;
				//rect.bottom++;
				//rect.right++;
				//InvalidateRect(&rect);
				pdc->MoveTo(rect.left,rect.top);
				pdc->LineTo(rect.right,rect.top);
				pdc->LineTo(rect.right,rect.bottom);
				pdc->LineTo(rect.left,rect.bottom);
				pdc->LineTo(rect.left,rect.top);
				pdc->SelectObject(oldpen);				
				pen.DeleteObject();
			}
			m_oldcharpos=curchar;
			rect.left=m_oldcharpos%m_bytesperline*24;
			rect.right=rect.left+16;
			//rect.top=m_oldcharpos/m_bytesperline+m_linesshown-GetScrollPos(SB_VERT)-1;
			rect.top=rect1.bottom-(GetScrollPos(SB_VERT)-m_oldcharpos/m_bytesperline+1)*15;
			//rect.top*=15;
			rect.bottom=rect.top+15;
			CPen pen;
			pen.CreatePen(PS_SOLID,1,RGB(0,0,255));			
			oldpen=pdc->SelectObject(&pen);
			//pdc->DrawEdge(&rect,BF_RECT,0);
			pdc->MoveTo(rect.left,rect.top);
			pdc->LineTo(rect.right,rect.top);
			pdc->LineTo(rect.right,rect.bottom);
			pdc->LineTo(rect.left,rect.bottom);
			pdc->LineTo(rect.left,rect.top);
			pdc->SelectObject(oldpen);
			ReleaseDC(pdc);
			pen.DeleteObject();
		}

		CView ::OnMouseMove(nFlags, point);
		return;
	}
	if(m_bmousedown)
	{//现在的情况是字符范围选择过程中的拖动，随着鼠标的拖动，
		//选择的范围也不停的变化
		static int oldchar=-1;
		RECT rect1;
		GetClientRect(&rect1);
		int curline=(rect1.bottom-point.y)/15;//(point.y+10)/15;
		curline=GetScrollPos(SB_VERT)-curline;
		if(curline<0)
			curline=0;
		int curchar=point.x>=m_bytesperline*24?m_bytesperline:point.x/24;
		curchar+=curline*m_bytesperline;
		int oldfrom=m_selfrom,oldto=m_selto;
		if(m_firstsel>=curchar)
		{
			m_selfrom=curchar;
			m_selto=m_firstsel;
		}
		else
		{
			m_selfrom=m_firstsel;
			m_selto=curchar;
		}
		if(oldfrom!=m_selfrom && oldto!=m_selto)
		{
			if(m_selfrom<oldfrom)
				oldfrom=m_selfrom;
			if(m_selto>oldto)
				oldto=m_selto;
		}
		else if(oldfrom!=m_selfrom)
		{
			if(oldfrom>m_selfrom)
			{
				oldto=oldfrom;
				oldfrom=m_selfrom;			
			}
			else
				oldto=m_selfrom;
		}
		else 
		{
			if(oldto<m_selto)
			{
				oldfrom=oldto;
				oldto=m_selto;
			}
			else
				oldfrom=m_selto;
		}
		RECT rect;
		GetClientRect(&rect);
		//rect.top=oldfrom/m_bytesperline+m_linesshown-GetScrollPos(SB_VERT)-1;
		//rect.top*=15;
		//rect.bottom=oldto/m_bytesperline+m_linesshown-GetScrollPos(SB_VERT);
		//rect.bottom*=15;
		rect.top=rect1.bottom-(GetScrollPos(SB_VERT)-oldfrom/m_bytesperline+1)*15;
		rect.bottom=rect1.bottom-(GetScrollPos(SB_VERT)-oldto/m_bytesperline)*15;
		rect.bottom++;
		if(curchar!=oldchar)
		{
			oldchar=curchar;
			InvalidateRect(&rect);
		}
	}
	RECT rect;
	GetClientRect(&rect);
	if(point.y>rect.bottom+5 && m_btimer!=1)
	{
		m_btimer=1;
		SetTimer(1111,50,NULL);
	}
	else if(point.y<rect.top-5 && m_btimer!=2)
	{
		m_btimer=2;
		SetTimer(1111,50,NULL);
	}
	else if(m_btimer && point.y<=rect.bottom+5 && point.y>= rect.top-5)
	{
		KillTimer(1111);
		m_btimer=0;
	}
	CView ::OnMouseMove(nFlags, point);
}
////////////////////////////////////////////////////////
//函数：OnFreezeScreen，冻结或解冻屏幕
void CDataShowView::OnFreezeScreen()
{
	m_bfrozen=!m_bfrozen;
}
//////////////////////////////////////////////////////
//函数：OnCopyData, 将选中的数据源码拷贝到剪贴板上
/////////////////////////////////////////////////////
void CDataShowView::OnCopyData()
{
	if(m_selfrom==-1)
		return;
	if(OpenClipboard())
	{
		if(EmptyClipboard())
		{
			HGLOBAL hmem=GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE,m_selto-m_selfrom+2);
			BYTE *pb=(BYTE *)GlobalLock(hmem);
			memset(pb,0,m_selto-m_selfrom+2);
			for(int i=0;i<m_selto-m_selfrom+1&& m_selfrom+i<m_bytes.GetSize();i++)
				pb[i]=m_bytes[m_selfrom+i];
			GlobalUnlock(hmem);
			SetClipboardData(CF_TEXT,hmem);
		}
		CloseClipboard();
	}
}
//////////////////////////////////////////////////////
//函数：OnCopyDisp, 将选中的数据显示码拷贝到剪贴板上
/////////////////////////////////////////////////////
void CDataShowView::OnCopyDisp()
{
	if(m_selfrom==-1)
		return;
	if(OpenClipboard())
	{
		if(EmptyClipboard())
		{
			HGLOBAL hmem=GlobalAlloc(GMEM_MOVEABLE|GMEM_DDESHARE,(m_selto-m_selfrom+2)*3);
			char *pb=(char *)GlobalLock(hmem);
			memset(pb,0,(m_selto-m_selfrom+2)*3);
			char buf[4];
			for(int i=0;i<m_selto-m_selfrom+1 && m_selfrom+i<m_bytes.GetSize();i++)
			{
				wsprintf(buf,"%02X ",m_bytes[m_selfrom+i]);
				strcat(pb,buf);
			}			
			GlobalUnlock(hmem);
			SetClipboardData(CF_TEXT,hmem);
		}
		CloseClipboard();
	}

}
//////////////////////////////////////////////////////
//函数：OnSelectAll，选中所有的字符
/////////////////////////////////////////////////////
void CDataShowView::OnSelectAll()
{
	if(m_bytes.GetSize())
	{
		m_selfrom=0;
		m_selto=m_bytes.GetSize()-1;
		Invalidate();
	}
}
//////////////////////////////////////////////////////
//函数：OnSetSpByte,开始设定特殊显示的字符
/////////////////////////////////////////////////////
void CDataShowView::OnSetSpByte()
{
	if(m_bytes.GetSize()==0)
		return;
	m_bpointing=TRUE;
	//SetCapture();
	//SetCursor(::LoadCursor(NULL,IDC_ARROW));
	SetClassLong(m_hWnd,GCL_HCURSOR,(long)(::LoadCursor(NULL,IDC_ARROW)));
}
//////////////////////////////////////////////////////
//函数：OnClearWindow,清除窗口内容
/////////////////////////////////////////////////////
void CDataShowView::OnClearWindow()
{
	EnterCriticalSection(&cs);
	m_bytes.RemoveAll();
	m_selfrom=-1;
	LeaveCriticalSection(&cs);
	SetScrollRange(SB_VERT,0,1);
	SetScrollPos(SB_VERT,0);
	Invalidate();
}
//////////////////////////////////////////////////////
//函数：OnTimer，自动向上向下卷轴的定时器
/////////////////////////////////////////////////////
void CDataShowView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	if(nIDEvent==1111&& m_btimer)
	{
		int min,max,pos;
		pos=GetScrollPos(SB_VERT);
		GetScrollRange(SB_VERT,&min,&max);
		if((m_btimer==1 && pos>=max)||(m_btimer==2 && pos<=min))
		{
			KillTimer(1111);
			m_btimer=0;
		}
		else
		{
			if(m_btimer==1)
			{
//				m_selto+=m_bytesperline;
//				RECT rect;
//				GetClientRect(&rect);
//				rect.top=rect.bottom-15;
//				InvalidateRect(&rect);			

				OnVScroll(SB_LINEDOWN,0,NULL);	
			}
			else if(m_btimer==2)
			{
//				m_selfrom-=m_bytesperline;
//				if(m_selfrom<0)
//					m_selfrom=0;
				OnVScroll(SB_LINEUP,0,NULL);
			}
			CPoint pt;
			GetCursorPos(&pt);
			RECT rect;
			GetWindowRect(&rect);
			pt.x-=rect.left;
			pt.y-=rect.top;
			OnMouseMove(0,pt);
			//m_selto+=m_bytesperline;
			//RECT rect;
			//GetClientRect(&rect);
			//rect.top=rect.bottom-15;

			//InvalidateRect(&rect);			
		}		
	}
	
	CView ::OnTimer(nIDEvent);
}
//////////////////////////////////////////////////////
//函数：SetBufferLen，设置显示缓冲的大小
/////////////////////////////////////////////////////
void CDataShowView::SetBufferLen(int nlen)
{
	//Commwin.cpp中已判断 if(nlen>10240) nlen=10240;//10K bytes
	EnterCriticalSection(&cs);
	m_bufferbytes=nlen;
	LeaveCriticalSection(&cs);
}
//////////////////////////////////////////////////////
//函数：OnDraw,画图函数，是用来显示字符的。
/////////////////////////////////////////////////////
void CDataShowView::OnDraw(CDC* pDC) 
{
	// TODO: Add your specialized code here and/or call the base class
	RECT rect;
	GetClientRect(&rect);	
	CBitmap bmp,*ob;
	
	CDC cdc;	
	cdc.CreateCompatibleDC(pDC);
	bmp.CreateCompatibleBitmap(pDC,rect.right,rect.bottom);
	ob=cdc.SelectObject(&bmp);
//	cdc.SetTextColor(RGB(0,0,0));
//	cdc.SetBkColor(RGB(255,255,255));
	cdc.FillRect(&rect,CBrush::FromHandle((HBRUSH)GetStockObject(WHITE_BRUSH)));

	COLORREF oldt,oldb;
	
	oldt=cdc.SetTextColor(m_color_normaltext);
	oldb=cdc.SetBkColor(m_color_normalback);
	// TODO: Add your message handler code here
//	SetFont(&m_font);
	//采用临界区操作，进入临界区
	EnterCriticalSection(&cs);

	int total=m_bytes.GetSize();
	if(total==0)
	{
		LeaveCriticalSection(&cs);
		return;
	}
	int pos=GetScrollPos(SB_VERT);
	total=(pos+1)*m_bytesperline>total?total:(pos+1)*m_bytesperline;
	int lines=pos-m_linesshown;
	int from;
	if(lines<0)
		from=0;
	else
		from=lines;
	from*=m_bytesperline;
	if(lines<0)
		lines=pos;
	else
		lines=m_linesshown;

//	char buf1[256];
//	char buf2[56];
	char temp[4];
	int line=-1;
	CFont *of;
	of=cdc.SelectObject(&m_font);
	
	for(;from<total;from+=m_bytesperline)
	{
		//memset(buf1,0,256);
		//memset(buf2,0,56);
		for(int i=0;i<m_bytesperline;i++)
		{			
			if(from+i>=total)//字符显示结束，无字符的行剩余部分显示空
			{
				wsprintf(temp,"   ");
				cdc.SetTextColor(m_color_normaltext);
				cdc.SetBkColor(m_color_normalback);
				cdc.TextOut(i*24,rect.bottom-15*(lines-line),temp);
/*weiyi	*/			wsprintf(temp," ");
/*weiyi	*/				cdc.TextOut(rect.right-(m_bytesperline-i)*8-8,rect.bottom-15*(lines-line),temp);
			}
			else
			{
				
				wsprintf(temp,"%02X ",m_bytes[from+i]);
				//strcat(buf1,temp);
				//如果属于选中部分，则颜色需改变
				if(m_selfrom!= -1 && from+i>=m_selfrom && from+i<=m_selto)
				{
					cdc.SetTextColor(m_color_selecttext);
					cdc.SetBkColor(m_color_selectback);
				}
				else 
				{
					cdc.SetTextColor(m_color_normaltext);
					cdc.SetBkColor(m_color_normalback);
				}
				//如果要显示的字符为特殊字符，则设定为特殊的颜色
				if(m_bytes[from+i]==m_specialbyte)
					cdc.SetTextColor(m_color_keywordtext);
				cdc.TextOut(i*24,rect.bottom-15*(lines-line),temp);
/*weiyi	*/				wsprintf(temp,"%c",m_bytes[from+i]<32?'.':m_bytes[from+i]);				
/*weiyi	*/			cdc.TextOut(rect.right-(m_bytesperline-i)*8-8,rect.bottom-15*(lines-line),temp);
			}
		}
		line++;
	}
	//离开临界区
	LeaveCriticalSection(&cs);
	pDC->BitBlt(0,0,rect.right,rect.bottom,&cdc,0,0,SRCCOPY);
	cdc.SetTextColor(oldt);
	cdc.SetBkColor(oldb);
	cdc.SelectObject(of);

	cdc.SelectObject(ob);
	
	cdc.DeleteDC();
	
}

char *buf1[]={"0","1","2","3","4","5","6","7","8","9","A","B","C","D","E","F"};
void CDataShowView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags) 
{
	// TODO: Add your message handler code here and/or call default
/*	if(m_bfrozen)
		return;

	char chTemp = nChar;
	
	if(isxdigit(chTemp))
	{
		chTemp = toupper(nChar);
		strManual+=chTemp;
		if (strManual.GetLength()==2)
		{
			
				BYTE aaa = 16 * GetHexValue((char*)(const char*)strManual.Left(1))
					+GetHexValue((char*)(const char*)strManual.Right(1));
				ShowData(&aaa,1);
			strManual.Empty();
		}		
		
	}
	else if (nChar == VK_BACK)
	{	
		int nCountOfByte = m_bytes.GetSize();
		if (nCountOfByte > 0)
		{
			EnterCriticalSection(&cs);
			m_bytes.RemoveAt(nCountOfByte-1,1);
			LeaveCriticalSection(&cs);
			RedrawWindow();
		}
		else
			strManual.Empty();
	}
*/	CView::OnKeyDown(nChar, nRepCnt, nFlags);
}

BYTE CDataShowView::GetHexValue(char* chTemp)
{
	for(BYTE i=0;i<16;i++)
	{
		if (*chTemp == *buf1[i])
		{
			return i;
		}
	}
	return 0;
}