www.pudn.com > CA.rar > TextProgressCtrl.cpp

// TextProgressCtrl.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "TextProgressCtrl.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// CTextProgressCtrl 
 
CTextProgressCtrl::CTextProgressCtrl() 
{ 
	m_nPos            = 0; 
    m_nStepSize       = 1; 
    m_nMax            = 100; 
    m_nMin            = 0; 
    m_bShowText       = TRUE; 
    m_strText.Empty(); 
	m_colFore        = ::GetSysColor(COLOR_HIGHLIGHT);//进度条颜色 
    m_colBk          =::GetSysColor(COLOR_WINDOW);//背景颜色，没有填充时候颜色 
    m_colTextFore    =::GetSysColor(COLOR_HIGHLIGHT);//%50以前颜色 
    m_colTextBk      =::GetSysColor(COLOR_WINDOW);//%50以后颜色 
 
} 
 
CTextProgressCtrl::~CTextProgressCtrl() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(CTextProgressCtrl, CProgressCtrl) 
	//{{AFX_MSG_MAP(CTextProgressCtrl) 
	ON_WM_PAINT() 
	ON_WM_ERASEBKGND() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CTextProgressCtrl message handlers 
 
void CTextProgressCtrl::SetRange(int nLower, int nUpper) 
{ 
    m_nMax = nUpper; 
    m_nMin = nLower; 
} 
 
int CTextProgressCtrl::SetPos(int nPos) 
{ 
	if (!::IsWindow(m_hWnd)) 
        return -1; 
    int nOldPos = m_nPos; 
    m_nPos = nPos; 
 
    CRect rect; 
    GetClientRect(rect); 
 
    double Fraction = (double)(m_nPos - m_nMin) / ((double)(m_nMax - m_nMin)); 
    int nBarWidth = (int) (Fraction * rect.Width()); 
 
    if (nBarWidth != m_nBarWidth) 
    { 
        m_nBarWidth = nBarWidth; 
        RedrawWindow(); 
    } 
 
    return nOldPos; 
 
} 
 
void CTextProgressCtrl::OnPaint()  
{ 
	CPaintDC dc(this); // device context for painting 
	 
	// TODO: Add your message handler code here 
    if (m_nMin >= m_nMax)  
        return; 
	if(m_nPos>m_nMax) return; 
//	if(m_nPos==0) return; 
    CRect LeftRect, RightRect, ClientRect; 
    GetClientRect(ClientRect); 
 
    double Fraction = (double)(m_nPos - m_nMin) / ((double)(m_nMax - m_nMin)); 
 
 
    LeftRect = RightRect = ClientRect; 
 
    LeftRect.right = LeftRect.left + (int)((LeftRect.right - LeftRect.left)*Fraction); 
    dc.FillSolidRect(LeftRect, m_colFore); 
 
    RightRect.left = LeftRect.right; 
    dc.FillSolidRect(RightRect, m_colBk); 
 
    if (m_bShowText) 
    { 
        CString str; 
        if (m_strText.GetLength()) 
            str = m_strText; 
        else 
            str.Format("%d%%", (int)(Fraction*100.0)); 
 
        dc.SetBkMode(TRANSPARENT); 
 
        CRgn rgn; 
        rgn.CreateRectRgn(LeftRect.left, LeftRect.top, LeftRect.right, LeftRect.bottom); 
        dc.SelectClipRgn(&rgn); 
        dc.SetTextColor(m_colTextBk); 
 
        dc.DrawText(str, ClientRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE); 
 
        rgn.DeleteObject(); 
        rgn.CreateRectRgn(RightRect.left, RightRect.top, RightRect.right, RightRect.bottom); 
        dc.SelectClipRgn(&rgn); 
        dc.SetTextColor(m_colTextFore); 
 
        dc.DrawText(str, ClientRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE); 
    }	 
	// Do not call CProgressCtrl::OnPaint() for painting messages 
} 
 
BOOL CTextProgressCtrl::OnEraseBkgnd(CDC* pDC)  
{ 
	// TODO: Add your message handler code here and/or call default 
	return TRUE; 
//	return CProgressCtrl::OnEraseBkgnd(pDC); 
}