datadisplay.cpp

浏览所有的PCI设备

// DataDisplay.cpp : implementation file
//

#include "stdafx.h"
#include "PCI Explorer.h"
#include "DataDisplay.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDataDisplay

CDataDisplay::CDataDisplay()
{
 col1 = 0;
 format = DISPLAY_HEX_BYTES;
}

CDataDisplay::~CDataDisplay()
{
}


BEGIN_MESSAGE_MAP(CDataDisplay, CListBox)
	//{{AFX_MSG_MAP(CDataDisplay)
		// NOTE - the ClassWizard will add and remove mapping macros here.
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDataDisplay message handlers


/****************************************************************************
*                                   cvdisp
* Inputs:
*       char * c: Character to convert
* Result: void
*       
* Effect: 
*       Converts the character to a printable character
****************************************************************************/

void cvdisp(char * c)
    {
     if(*c < ' ')
	*c = '.';
    }

void CDataDisplay::DrawItem(LPDRAWITEMSTRUCT dis) 
{
     CDC * dc = CDC::FromHandle(dis->hDC);

     if(dis->itemID == -1)
        { /* empty */
	 CBrush bg(::GetSysColor(COLOR_WINDOW));
	 dc->FillRect(&dis->rcItem, &bg);
	 if(dis->itemState & ODS_FOCUS)
	    { /* selected */
	     dc->DrawFocusRect(&dis->rcItem);
	    } /* selected */
	 return;  // nothing to draw
	} /* empty */

     if(dis->itemState & ODA_FOCUS)
        { /* focus only */
	 dc->DrawFocusRect(&dis->rcItem);
	 return;
	} /* focus only */

     int saved = dc->SaveDC();
     COLORREF txcolor;
     COLORREF gycolor;

     dc->SetBkMode(TRANSPARENT);

     ///////////////////////////////////////////////////////////////////////
     // Background
     ///////////////////////////////////////////////////////////////////////

     if((dis->itemState & ODS_SELECTED))
	{ /* selected */
	 COLORREF fill;
	 if(::GetFocus() == m_hWnd)
	    fill = ::GetSysColor(COLOR_HIGHLIGHT);
         else
	    fill = ::GetSysColor(COLOR_GRAYTEXT);
	 CBrush bg(fill);

	 dc->FillRect(&dis->rcItem, &bg);
	 txcolor = ::GetSysColor(COLOR_HIGHLIGHTTEXT);
	 gycolor = ::GetSysColor(COLOR_HIGHLIGHTTEXT);
	} /* selected */
     else
        { /* not selected */
	 CBrush bg(::GetSysColor(COLOR_WINDOW));
	 dc->FillRect(&dis->rcItem, &bg);
	 txcolor = ::GetSysColor(COLOR_WINDOWTEXT);
	 gycolor = ::GetSysColor(COLOR_GRAYTEXT);
	} /* not selected */

     
     ///////////////////////////////////////////////////////////////////////
     // Value
     ///////////////////////////////////////////////////////////////////////

     if(col1 == 0)
        { /* set it */
	 col1 = dc->GetTextExtent(CString(_T("000:  "))).cx;
	} /* set it */

     CString s;
     s.Format(_T("%3d:  "), dis->itemID * sizeof(DWORD));

     int offset = dc->GetTextExtent(s, s.GetLength()).cx;

     dc->SetTextColor(RGB(0, 0, 255));
     dc->TextOut(col1 - offset, dis->rcItem.top, s);

     ///////////////////////////////////////////////////////////////////////
     // Data
     ///////////////////////////////////////////////////////////////////////

     dc->SetTextColor(txcolor);

     switch(format)
        { /* decode format */
	 case DISPLAY_HEX_BYTES:
		 s.Format(_T("%02x  %02x  %02x  %02x"),
		 			    HIBYTE(HIWORD(dis->itemData)),
		 			    LOBYTE(HIWORD(dis->itemData)),
		 			    HIBYTE(LOWORD(dis->itemData)),
		 			    LOBYTE(LOWORD(dis->itemData)));
		 break;
	 case DISPLAY_HEX_WORDS:
		 s.Format(_T("%04x  %04x"), HIWORD(dis->itemData),
		 			    LOWORD(dis->itemData));
		 break;
	 case DISPLAY_HEX_DWORDS:
		 s.Format(_T("%08x"), dis->itemData);
		 break;
	 case DISPLAY_DECIMAL_BYTES:
		 s.Format(_T("%u  %u  %u  %u"),
		 			    HIBYTE(HIWORD(dis->itemData)),
		 			    LOBYTE(HIWORD(dis->itemData)),
		 			    HIBYTE(LOWORD(dis->itemData)),
		 			    LOBYTE(LOWORD(dis->itemData)));
		 break;
	 case DISPLAY_DECIMAL_WORDS:
		 s.Format(_T("%u %u"), HIWORD(dis->itemData),
		 			    LOWORD(dis->itemData));
		 break;
	 case DISPLAY_DECIMAL_DWORDS:
		 s.Format(_T("%u"), dis->itemData);
		 break;
         case DISPLAY_ANSI_CHARACTERS:
		 {
		  char t[5];
		  t[0] = HIBYTE(HIWORD(dis->itemData));
		  t[1] = LOBYTE(HIWORD(dis->itemData));
		  t[2] = HIBYTE(LOWORD(dis->itemData));
		  t[3] = LOBYTE(LOWORD(dis->itemData));
		  t[4] = '\0';
		  cvdisp(&t[0]);
		  cvdisp(&t[1]);
		  cvdisp(&t[2]);
		  cvdisp(&t[3]);
		  s.Format(_T("%02x  %02x  %02x  %02x  |%c%c%c%c|"),
					     HIBYTE(HIWORD(dis->itemData)),
					     LOBYTE(HIWORD(dis->itemData)),
					     HIBYTE(LOWORD(dis->itemData)),
					     LOBYTE(LOWORD(dis->itemData)),
					     t[0],
					     t[1],
					     t[2],
					     t[3]);


		 }
		 break;
	 case DISPLAY_UNICODE_CHARACTERS:
		 {
		  WCHAR t[3];
		  t[0] = HIWORD(dis->itemData);
		  t[1] = LOWORD(dis->itemData);
		  t[2] = L'\0';
		  // If we are already in Unicode, no need to convert
		  // If we are in ANSI, convert it
		  // NYI: ugly hack
		  char t2[3];
		  t2[0] = (char)t[0];
		  t2[1] = (char)t[1];
		  t2[2] = (char)t[2];
		  cvdisp(&t2[0]);
		  cvdisp(&t2[1]);
		  s.Format(_T("%04x  %04x |%c%c|"), HIWORD(dis->itemData),
		 			            LOWORD(dis->itemData),
						    t2[0],
						    t2[1]);
		 }
		 break;
	} /* decode format */

     dc->TextOut(col1, dis->rcItem.top, s);


     ///////////////////////////////////////////////////////////////////////
     // finish off processing
     ///////////////////////////////////////////////////////////////////////

     if(dis->itemState & ODS_FOCUS)
	{ /* selected */
	 dc->DrawFocusRect(&dis->rcItem);
	} /* selected */
     dc->RestoreDC(saved);
     
	
	// TODO: Add your code to draw the specified item
	
}