自己用---关于进度条倒计时问题。
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void CProgressDlg::OnButton1()
{
// TODO: Add your control notification handler code here
m_progress.SetRange(0,100);
m_progress.SetStep(10);
m_progress.SetPos(0);
int i=0;
while (i<9)
{
i++;
m_progress.StepIt();
Sleep(100);
}
}
//以下是CPP文件
// 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
#ifndef _MEMDC_H_
//////////////////////////////////////////////////
class CMemDC : public CDC
{
public:
// constructor sets up the memory DC
CMemDC(CDC* pDC) : CDC()
{
ASSERT(pDC != NULL);
m_pDC = pDC;
m_pOldBitmap = NULL;
m_bMemDC = !pDC->IsPrinting();
if (m_bMemDC) // Create a Memory DC
{
pDC->GetClipBox(&m_rect);
CreateCompatibleDC(pDC);
m_bitmap.CreateCompatibleBitmap(pDC, m_rect.Width(), m_rect.Height());
m_pOldBitmap = SelectObject(&m_bitmap);
SetWindowOrg(m_rect.left, m_rect.top);
}
else // Make a copy of the relevent parts of the current DC for printing
{
m_bPrinting = pDC->m_bPrinting;
m_hDC = pDC->m_hDC;
m_hAttribDC = pDC->m_hAttribDC;
}
}
// Destructor copies the contents of the mem DC to the original DC
~CMemDC()
{
if (m_bMemDC)
{
// Copy the offscreen bitmap onto the screen.
m_pDC->BitBlt(m_rect.left, m_rect.top, m_rect.Width(), m_rect.Height(),
this, m_rect.left, m_rect.top, SRCCOPY);
//Swap back the original bitmap.
SelectObject(m_pOldBitmap);
} else {
// All we need to do is replace the DC with an illegal value,
// this keeps us from accidently deleting the handles associated with
// the CDC that was passed to the constructor.
m_hDC = m_hAttribDC = NULL;
}
}
// Allow usage as a pointer
CMemDC* operator->() {return this;}
// Allow usage as a pointer
operator CMemDC*() {return this;}
private:
CBitmap m_bitmap; // Offscreen bitmap
CBitmap* m_pOldBitmap; // bitmap originally found in CMemDC
CDC* m_pDC; // Saves CDC passed in constructor
CRect m_rect; // Rectangle of drawing area.
BOOL m_bMemDC; // TRUE if CDC really is a Memory DC.
};
#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);
m_colBk = ::GetSysColor(COLOR_WINDOW);
m_colTextFore = ::GetSysColor(COLOR_HIGHLIGHT);
m_colTextBk = ::GetSysColor(COLOR_WINDOW);
m_nBarWidth = -1;
}
CTextProgressCtrl::~CTextProgressCtrl()
{
}
BEGIN_MESSAGE_MAP(CTextProgressCtrl, CProgressCtrl)
//{{AFX_MSG_MAP(CTextProgressCtrl)
ON_WM_ERASEBKGND()
ON_WM_PAINT()
ON_WM_SIZE()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_SETTEXT, OnSetText)
ON_MESSAGE(WM_GETTEXT, OnGetText)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTextProgressCtrl message handlers
LRESULT CTextProgressCtrl::OnSetText(UINT, LPCTSTR szText)
{
LRESULT result = Default();
if ( (!szText && m_strText.GetLength()) ||
(szText && (m_strText != szText)) )
{
m_strText = szText;
Invalidate();
}
return result;
}
LRESULT CTextProgressCtrl::OnGetText(UINT cchTextMax, LPTSTR szText)
{
if (!_tcsncpy(szText, m_strText, cchTextMax))
return 0;
else
return min(cchTextMax, (UINT) m_strText.GetLength());
}
BOOL CTextProgressCtrl::OnEraseBkgnd(CDC* /*pDC*/)
{
return TRUE;
}
void CTextProgressCtrl::OnSize(UINT nType, int cx, int cy)
{
CProgressCtrl::OnSize(nType, cx, cy);
m_nBarWidth = -1; // Force update if SetPos called
}
void CTextProgressCtrl::OnPaint()
{
if (m_nMin >= m_nMax)
return;
CRect LeftRect, RightRect, ClientRect;
GetClientRect(ClientRect);
double Fraction = (double)(m_nPos - m_nMin) / ((double)(m_nMax - m_nMin));
CPaintDC PaintDC(this); // device context for painting
CMemDC dc(&PaintDC);
//CPaintDC dc(this); // device context for painting (if not double buffering)
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("剩余时间:%d秒", (int)(35-Fraction*35.0));
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);
}
}
void CTextProgressCtrl::SetForeColour(COLORREF col)
{
m_colFore = col;
}
void CTextProgressCtrl::SetBkColour(COLORREF col)
{
m_colBk = col;
}
void CTextProgressCtrl::SetTextForeColour(COLORREF col)
{
m_colTextFore = col;
}
void CTextProgressCtrl::SetTextBkColour(COLORREF col)
{
m_colTextBk = col;
}
COLORREF CTextProgressCtrl::GetForeColour()
{
return m_colFore;
}
COLORREF CTextProgressCtrl::GetBkColour()
{
return m_colBk;
}
COLORREF CTextProgressCtrl::GetTextForeColour()
{
return m_colTextFore;
}
COLORREF CTextProgressCtrl::GetTextBkColour()
{
return m_colTextBk;
}
/////////////////////////////////////////////////////////////////////////////
// CTextProgressCtrl message handlers
void CTextProgressCtrl::SetShowText(BOOL bShow)
{
if (::IsWindow(m_hWnd) && m_bShowText != bShow)
Invalidate();
m_bShowText = bShow;
}
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;
}
int CTextProgressCtrl::StepIt()
{
return SetPos(m_nPos + m_nStepSize);
}
int CTextProgressCtrl::OffsetPos(int nPos)
{
return SetPos(m_nPos + nPos);
}
int CTextProgressCtrl::SetStep(int nStep)
{
int nOldStep = nStep;
m_nStepSize = nStep;
return nOldStep;
}
//以下是CPP文件
// 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
#ifndef _MEMDC_H_
//////////////////////////////////////////////////
class CMemDC : public CDC
{
public:
// constructor sets up the memory DC
CMemDC(CDC* pDC) : CDC()
{
ASSERT(pDC != NULL);
m_pDC = pDC;
m_pOldBitmap = NULL;
m_bMemDC = !pDC->IsPrinting();
if (m_bMemDC) // Create a Memory DC
{
pDC->GetClipBox(&m_rect);
CreateCompatibleDC(pDC);
m_bitmap.CreateCompatibleBitmap(pDC, m_rect.Width(), m_rect.Height());
m_pOldBitmap = SelectObject(&m_bitmap);
SetWindowOrg(m_rect.left, m_rect.top);
}
else // Make a copy of the relevent parts of the current DC for printing
{
m_bPrinting = pDC->m_bPrinting;
m_hDC = pDC->m_hDC;
m_hAttribDC = pDC->m_hAttribDC;
}
}
// Destructor copies the contents of the mem DC to the original DC
~CMemDC()
{
if (m_bMemDC)
{
// Copy the offscreen bitmap onto the screen.
m_pDC->BitBlt(m_rect.left, m_rect.top, m_rect.Width(), m_rect.Height(),
this, m_rect.left, m_rect.top, SRCCOPY);
//Swap back the original bitmap.
SelectObject(m_pOldBitmap);
} else {
// All we need to do is replace the DC with an illegal value,
// this keeps us from accidently deleting the handles associated with
// the CDC that was passed to the constructor.
m_hDC = m_hAttribDC = NULL;
}
}
// Allow usage as a pointer
CMemDC* operator->() {return this;}
// Allow usage as a pointer
operator CMemDC*() {return this;}
private:
CBitmap m_bitmap; // Offscreen bitmap
CBitmap* m_pOldBitmap; // bitmap originally found in CMemDC
CDC* m_pDC; // Saves CDC passed in constructor
CRect m_rect; // Rectangle of drawing area.
BOOL m_bMemDC; // TRUE if CDC really is a Memory DC.
};
#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);
m_colBk = ::GetSysColor(COLOR_WINDOW);
m_colTextFore = ::GetSysColor(COLOR_HIGHLIGHT);
m_colTextBk = ::GetSysColor(COLOR_WINDOW);
m_nBarWidth = -1;
}
CTextProgressCtrl::~CTextProgressCtrl()
{
}
BEGIN_MESSAGE_MAP(CTextProgressCtrl, CProgressCtrl)
//{{AFX_MSG_MAP(CTextProgressCtrl)
ON_WM_ERASEBKGND()
ON_WM_PAINT()
ON_WM_SIZE()
//}}AFX_MSG_MAP
ON_MESSAGE(WM_SETTEXT, OnSetText)
ON_MESSAGE(WM_GETTEXT, OnGetText)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CTextProgressCtrl message handlers
LRESULT CTextProgressCtrl::OnSetText(UINT, LPCTSTR szText)
{
LRESULT result = Default();
if ( (!szText && m_strText.GetLength()) ||
(szText && (m_strText != szText)) )
{
m_strText = szText;
Invalidate();
}
return result;
}
LRESULT CTextProgressCtrl::OnGetText(UINT cchTextMax, LPTSTR szText)
{
if (!_tcsncpy(szText, m_strText, cchTextMax))
return 0;
else
return min(cchTextMax, (UINT) m_strText.GetLength());
}
BOOL CTextProgressCtrl::OnEraseBkgnd(CDC* /*pDC*/)
{
return TRUE;
}
void CTextProgressCtrl::OnSize(UINT nType, int cx, int cy)
{
CProgressCtrl::OnSize(nType, cx, cy);
m_nBarWidth = -1; // Force update if SetPos called
}
void CTextProgressCtrl::OnPaint()
{
if (m_nMin >= m_nMax)
return;
CRect LeftRect, RightRect, ClientRect;
GetClientRect(ClientRect);
double Fraction = (double)(m_nPos - m_nMin) / ((double)(m_nMax - m_nMin));
CPaintDC PaintDC(this); // device context for painting
CMemDC dc(&PaintDC);
//CPaintDC dc(this); // device context for painting (if not double buffering)
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("剩余时间:%d秒", (int)(35-Fraction*35.0));
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);
}
}
void CTextProgressCtrl::SetForeColour(COLORREF col)
{
m_colFore = col;
}
void CTextProgressCtrl::SetBkColour(COLORREF col)
{
m_colBk = col;
}
void CTextProgressCtrl::SetTextForeColour(COLORREF col)
{
m_colTextFore = col;
}
void CTextProgressCtrl::SetTextBkColour(COLORREF col)
{
m_colTextBk = col;
}
COLORREF CTextProgressCtrl::GetForeColour()
{
return m_colFore;
}
COLORREF CTextProgressCtrl::GetBkColour()
{
return m_colBk;
}
COLORREF CTextProgressCtrl::GetTextForeColour()
{
return m_colTextFore;
}
COLORREF CTextProgressCtrl::GetTextBkColour()
{
return m_colTextBk;
}
/////////////////////////////////////////////////////////////////////////////
// CTextProgressCtrl message handlers
void CTextProgressCtrl::SetShowText(BOOL bShow)
{
if (::IsWindow(m_hWnd) && m_bShowText != bShow)
Invalidate();
m_bShowText = bShow;
}
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;
}
int CTextProgressCtrl::StepIt()
{
return SetPos(m_nPos + m_nStepSize);
}
int CTextProgressCtrl::OffsetPos(int nPos)
{
return SetPos(m_nPos + nPos);
}
int CTextProgressCtrl::SetStep(int nStep)
{
int nOldStep = nStep;
m_nStepSize = nStep;
return nOldStep;
}
.h
public:
int SetPos(int nPos);
int StepIt();
void SetRange(int nLower, int nUpper);
int OffsetPos(int nPos);
int SetStep(int nStep);
void SetForeColour(COLORREF col);
void SetBkColour(COLORREF col);
void SetTextForeColour(COLORREF col);
void SetTextBkColour(COLORREF col);
COLORREF GetForeColour();
COLORREF GetBkColour();
COLORREF GetTextForeColour();
COLORREF GetTextBkColour();
void SetShowText(BOOL bShow);
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CTextProgressCtrl)
//}}AFX_VIRTUAL
// Implementation
public:
virtual ~CTextProgressCtrl();
// Generated message map functions
protected:
int m_nPos,
m_nStepSize,
m_nMax,
m_nMin;
CString m_strText;
BOOL m_bShowText;
int m_nBarWidth;
COLORREF m_colFore,
m_colBk,
m_colTextFore,
m_colTextBk;
//{{AFX_MSG(CTextProgressCtrl)
afx_msg BOOL OnEraseBkgnd(CDC* pDC);
afx_msg void OnPaint();
afx_msg void OnSize(UINT nType, int cx, int cy);
//}}AFX_MSG
afx_msg LRESULT OnSetText(UINT, LPCTSTR szText);
afx_msg LRESULT OnGetText(UINT cchTextMax, LPTSTR szText);
DECLARE_MESSAGE_MAP()
};
.cpp
- BOOL CKOBEDlg::OnInitDialog()
- {
- CDialog::OnInitDialog();
- // Add "About..." menu item to system menu.
- // IDM_ABOUTBOX must be in the system command range.
- ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
- ASSERT(IDM_ABOUTBOX < 0xF000);
- CMenu* pSysMenu = GetSystemMenu(FALSE);
- if (pSysMenu != NULL)
- {
- CString strAboutMenu;
- strAboutMenu.LoadString(IDS_ABOUTBOX);
- if (!strAboutMenu.IsEmpty())
- {
- pSysMenu->AppendMenu(MF_SEPARATOR);
- pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
- }
- }
- // Set the icon for this dialog. The framework does this automatically
- // when the application's main window is not a dialog
- SetIcon(m_hIcon, TRUE); // Set big icon
- SetIcon(m_hIcon, FALSE); // Set small icon
- m_progress.SetRange(0,35);
- m_progress.SetPos(0);
- m_progress.SetStep(1);
- m_progress.SetForeColour(RGB(0,0,255));
- m_progress.SetBkColour(RGB(0,0,0));
- m_progress.SetTextForeColour(RGB(0,255,0));
- // m_progress.SetRange(0,100);
- // m_progress.SetPos(0);
- // m_progress2.SetRange(0,100);
- // m_progress2.SetPos(0);
- // TODO: Add extra initialization here
- SetTimer(1,1000,NULL);
- return TRUE; // return TRUE unless you set the focus to a control
- }
- void CKOBEDlg::OnTimer(UINT nIDEvent)
- {
- // TODO: Add your message handler code here and/or call default
- if (i<35)
- {
- i+=1;
- m_progress.SetPos(i);
- // m_progress2.SetPos(i);
- }
- CDialog::OnTimer(nIDEvent);
- }
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