Source code of Windows XP (NT5)
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/*******************************************************************************
*
* led.cpp
*
* implementation of CLed class
*
* copyright notice: Copyright 1997, Citrix Systems Inc.
* Copyright (c) 1998 - 1999 Microsoft Corporation
*
* $Author: butchd $ Butch Davis
*
* $Log: M:\NT\PRIVATE\UTILS\CITRIX\WINUTILS\WINADMIN\VCS\LED.CPP $
*
* Rev 1.0 30 Jul 1997 17:11:36 butchd
* Initial revision.
*
*******************************************************************************/
/*
* include files
*/
#include <afxwin.h> // MFC core and standard components
#include <afxext.h> // MFC extensions
#include "led.h"
#ifdef _DEBUG
#undef THIS_FILE
static char BASED_CODE THIS_FILE[] = __FILE__;
#endif
///////////////////////////////////////////////////////////////////////////////
// CLed class construction / destruction, implementation
/*******************************************************************************
*
* CLed - CLed constructor
*
* ENTRY:
* hBrush (input)
* Brush to paint window with.
* EXIT:
* (Refer to MFC CStatic::CStatic documentation)
*
******************************************************************************/
CLed::CLed( HBRUSH hBrush )
: CStatic(),
m_hBrush(hBrush)
{
//{{AFX_DATA_INIT(CLed)
//}}AFX_DATA_INIT
} // end CLed::CLed
////////////////////////////////////////////////////////////////////////////////
// CLed operations
/*******************************************************************************
*
* Subclass - CLed member function: public operation
*
* Subclass the specified object to our special blip object.
*
* ENTRY:
* pStatic (input)
* Points to CStatic object to subclass.
* EXIT:
*
******************************************************************************/
void
CLed::Subclass( CStatic *pStatic )
{
SubclassWindow(pStatic->m_hWnd);
} // end CLed::Subclass
/*******************************************************************************
*
* Update - CLed member function: public operation
*
* Update the LED to 'on' or 'off' state.
*
* ENTRY:
* nOn (input)
* nonzero to set 'on' state; zero for 'off' state.
* EXIT:
*
******************************************************************************/
void
CLed::Update( int nOn )
{
m_bOn = nOn ? TRUE : FALSE;
InvalidateRect(NULL);
UpdateWindow();
} // end CLed::Update
/*******************************************************************************
*
* Toggle - CLed member function: public operation
*
* Toggle the LED's on/off state.
*
* ENTRY:
* EXIT:
*
******************************************************************************/
void
CLed::Toggle()
{
m_bOn = !m_bOn;
InvalidateRect(NULL);
UpdateWindow();
} // end CLed::Toggle
////////////////////////////////////////////////////////////////////////////////
// CLed message map
BEGIN_MESSAGE_MAP(CLed, CStatic)
//{{AFX_MSG_MAP(CLed)
ON_WM_PAINT()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
////////////////////////////////////////////////////////////////////////////////
// CLed commands
/*******************************************************************************
*
* OnPaint - CLed member function: public operation
*
* Paint the led with its brush for 'on' state.
*
* ENTRY:
* EXIT:
* (Refer to MFC CWnd::OnPaint documentation)
*
******************************************************************************/
void
CLed::OnPaint()
{
RECT rect;
CPaintDC dc(this);
CBrush brush;
GetClientRect(&rect);
#ifdef USING_3DCONTROLS
(rect.right)--;
(rect.bottom)--;
dc.FrameRect( &rect, brush.FromHandle((HBRUSH)GetStockObject(GRAY_BRUSH)) );
(rect.top)++;
(rect.left)++;
(rect.right)++;
(rect.bottom)++;
dc.FrameRect( &rect, brush.FromHandle((HBRUSH)GetStockObject(WHITE_BRUSH)) );
(rect.top)++;
(rect.left)++;
(rect.right) -= 2;
(rect.bottom) -= 2;
#else
dc.FrameRect( &rect, brush.FromHandle((HBRUSH)GetStockObject(BLACK_BRUSH)) );
(rect.top)++;
(rect.left)++;
(rect.right)--;
(rect.bottom)--;
#endif
dc.FillRect( &rect,
brush.FromHandle(
m_bOn ?
m_hBrush :
(HBRUSH)GetStockObject(LTGRAY_BRUSH)) );
} // end CLed::OnPaint
////////////////////////////////////////////////////////////////////////////////