#include "stdafx.h"#include "ProgressBar.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endifProgressBar::ProgressBar()    : m_error( false )    , m_total( 0 )    , m_progress( 0 )     , m_progressX( 0 ){}ProgressBar::~ProgressBar(){}BEGIN_MESSAGE_MAP(ProgressBar, CWnd)	//{{AFX_MSG_MAP(ProgressBar)	ON_WM_PAINT()	ON_WM_SIZE()	ON_WM_ERASEBKGND()	//}}AFX_MSG_MAPEND_MESSAGE_MAP()void ProgressBar::OnPaint() {	CPaintDC dc(this); // device context for painting  paint( dc );}// Paint the progress bar in response to a paint messagevoid ProgressBar::paint( CDC &dc ){  paintBackground( dc );  paintStatus( dc );}// Paint the background of the progress bar regionvoid ProgressBar::paintBackground( CDC &dc ){  CBrush brshBackground;  CPen penGray( PS_SOLID, 1, RGB (128, 128, 128) );  CPen penWhite( PS_SOLID, 1, RGB (255, 255, 255) );  VERIFY( brshBackground.CreateSolidBrush( ::GetSysColor (COLOR_BTNFACE) ) );  dc.FillRect( m_bounds, &brshBackground );    CPen *pOldPen = dc.SelectObject( &penGray );  int xRight = m_bounds.left + m_bounds.Width() -1;  int yBottom = m_bounds.top + m_bounds.Height() -1;  {    dc.MoveTo( m_bounds.left, m_bounds.top );    dc.LineTo( xRight, m_bounds.top );    dc.MoveTo( m_bounds.left, m_bounds.top );    dc.LineTo( m_bounds.left, yBottom );  }  dc.SelectObject( &penWhite );  {    dc.MoveTo( xRight, m_bounds.top );    dc.LineTo( xRight, yBottom );    dc.MoveTo( m_bounds.left, yBottom );    dc.LineTo( xRight, yBottom );  }  dc.SelectObject( pOldPen );}// Paint the actual status of the progress barvoid ProgressBar::paintStatus( CDC &dc ){  if ( m_progress <= 0 )    return;  CBrush brshStatus;  CRect rect( m_bounds.left, m_bounds.top,               m_bounds.left + m_progressX, m_bounds.bottom );  COLORREF statusColor = getStatusColor();  VERIFY( brshStatus.CreateSolidBrush( statusColor ) );  rect.DeflateRect( 1, 1 );  dc.FillRect( rect, &brshStatus );}// Paint the current stepvoid ProgressBar::paintStep( int startX,                         int endX ){  CRect redrawBounds( m_bounds.left + startX-1, m_bounds.top,                       m_bounds.left + endX, m_bounds.bottom );  RedrawWindow( redrawBounds );}// Setup the progress bar for execution over a total number of stepsvoid ProgressBar::start( int total ){  m_total = total;  reset ();}// Take one step, indicating whether it was a successful stepvoid ProgressBar::step( bool successful ){  m_progress++;  int x = m_progressX;  m_progressX = scale (m_progress);  if ( !m_error  &&  !successful )  {    m_error = true;    x = 1;  }  paintStep( x, m_progressX );}// Map from steps to display unitsint ProgressBar::scale( int value ){  if ( m_total > 0 )      return max( 1, value * (m_bounds.Width() - 1) / m_total );  return value;}// Reset the progress barvoid ProgressBar::reset(){  m_progressX = 1;  m_progress = 0;  m_error = false;  RedrawWindow( m_bounds );  UpdateWindow( );}void ProgressBar::OnSize(UINT nType, int cx, int cy) {	CWnd::OnSize(nType, cx, cy);  GetClientRect( &m_bounds );  m_progressX = scale (m_progress);  Invalidate();}BOOL ProgressBar::OnEraseBkgnd( CDC *pDC ){  return FALSE;}