www.pudn.com > MediaPlayer.rar > BmpProgCtrl.cpp

// BmpProgCtrl.cpp : implementation file 
// 
/* 
 
*/ 
#include "stdafx.h" 
#include "BmpProgCtrl.h" 
#include "resource.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CBmpProgCtrl 
 
CBmpProgCtrl::CBmpProgCtrl() 
{ 
	m_nLower = 1; 
	m_nUpper = 100; 
	m_nStep = 1; 
	m_nPos = 0; 
	pDCBack = new CDC; 
	pDCFore = new CDC; 
	bmpBack.LoadBitmap(IDB_BACK); 
	bmpFore.LoadBitmap(IDB_FORE); 
	Prog=FALSE; 
} 
 
CBmpProgCtrl::~CBmpProgCtrl() 
{ 
	delete pDCBack; 
	delete pDCFore; 
} 
 
 
BEGIN_MESSAGE_MAP(CBmpProgCtrl, CStatic) 
	//{{AFX_MSG_MAP(CBmpProgCtrl) 
	ON_WM_PAINT() 
	ON_WM_ERASEBKGND() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CBmpProgCtrl message handlers 
 
void CBmpProgCtrl::SetRange(int nLower, int nUpper) 
{ 
	if(nUpper > nLower) 
	{ 
		m_nLower = nLower; 
		m_nUpper = nUpper; 
	} 
	else 
	{ 
		m_nLower = nUpper; 
		m_nUpper = nLower; 
	} 
} 
 
int CBmpProgCtrl::SetPos(int nPos) 
{ 
	if(m_nLower <= nPos && m_nUpper >= nPos) 
	{ 
		m_nPos = nPos; 
		return 1; 
	} 
	return 0; 
} 
 
int CBmpProgCtrl::OffsetPos(int nPos) 
{ 
	CRect tempRect = m_rect; 
	tempRect.left =(long)(m_length*m_rect.Width()); 
	m_nPos += nPos; 
	if(m_nPos>m_nUpper) 
	{ 
		m_nPos = m_nUpper; 
		InvalidateRect(&tempRect); 
		return 0; 
	} 
	InvalidateRect(&tempRect); 
	return 1; 
	 
} 
 
int CBmpProgCtrl::SetStep(int nStep) 
{ 
	if(nStep>0) 
	{ 
		m_nStep = nStep; 
		return 1; 
	} 
	return 0; 
} 
 
int CBmpProgCtrl::StepIt() 
{	 
	CRect tempRect = m_rect; 
	tempRect.left = (long)(m_length*m_rect.Width()); 
	m_nPos += m_nStep; 
	/////////////////////////////////////////////////// 
/*	m_length = (float)m_nPos/(m_nUpper-m_nLower); 
	CPaintDC dc(this); 
	GetClientRect(&m_rect); 
	pDCBack->CreateCompatibleDC(&dc); 
	pDCFore->CreateCompatibleDC(&dc); 
 
	bmpBack.GetBitmap(&bmback); 
	bmpFore.GetBitmap(&bmfore); 
	pDCBack->SelectObject(bmpBack); 
 
	dc.StretchBlt(0,0,m_rect.Width(),m_rect.Height(),pDCBack,0,0,bmback.bmWidth,bmback.bmHeight,SRCCOPY); 
	if(Prog) 
	{ 
		(CBitmap*)pDCFore->SelectObject(bmpFore); 
		dc.StretchBlt(0,0,(int)(m_rect.Width()*m_length),m_rect.Height(),pDCFore,0,0,(int)(bmfore.bmWidth*m_length),bmfore.bmHeight,SRCCOPY); 
	} 
	pDCBack->DeleteDC(); 
	pDCFore->DeleteDC();*/ 
	///////////////////////////////////////////////////////// 
	if(m_nPos>m_nUpper) 
	{ 
		m_nPos = m_nUpper; 
		InvalidateRect(&tempRect); 
		return 0; 
	} 
		InvalidateRect(&tempRect); 
	return 1; 
} 
 
void CBmpProgCtrl::OnPaint()  
{ 
	m_length = (float)m_nPos/(m_nUpper-m_nLower); 
	CPaintDC dc(this); 
	GetClientRect(&m_rect); 
	pDCBack->CreateCompatibleDC(&dc); 
	pDCFore->CreateCompatibleDC(&dc); 
 
	bmpBack.GetBitmap(&bmback); 
	bmpFore.GetBitmap(&bmfore); 
	pDCBack->SelectObject(bmpBack); 
 
	dc.StretchBlt(0,0,m_rect.Width(),m_rect.Height(),pDCBack,0,0,bmback.bmWidth,bmback.bmHeight,SRCCOPY); 
 
	if(Prog) 
	{ 
		(CBitmap*)pDCFore->SelectObject(bmpFore); 
		dc.StretchBlt(0,0,(int)(m_rect.Width()*m_length),m_rect.Height(),pDCFore,0,0,(int)(bmfore.bmWidth*m_length),bmfore.bmHeight,SRCCOPY);	 
	} 
	pDCBack->DeleteDC(); 
	pDCFore->DeleteDC(); 
} 
 
int CBmpProgCtrl::GetPos() 
{ 
	return m_nPos; 
} 
 
void CBmpProgCtrl::GetRange(int &lower, int &upper) 
{ 
	lower = m_nLower; 
	upper = m_nUpper; 
} 
 
void CBmpProgCtrl::RoolBack(BOOL Progress) 
{ 
	Prog = Progress; 
	InvalidateRect(&m_rect); 
} 
 
BOOL CBmpProgCtrl::OnEraseBkgnd(CDC *pDC) 
{ 
	return TRUE; 
} 
 
void CBmpProgCtrl::SetText(CString Text) 
{ 
	SetWindowText(Text); 
}