模拟小时钟源代码

模拟小时钟

以下是模拟小时钟的部分源代码，仅供参考。

 

头文件：

// ClockDlg.h : header file//#if !defined(AFX_CLOCKDLG_H__266B5DA3_86D9_4ECD_A57A_DBED4E7D26CE__INCLUDED_)#define AFX_CLOCKDLG_H__266B5DA3_86D9_4ECD_A57A_DBED4E7D26CE__INCLUDED_#if _MSC_VER >= 1000#pragma once#endif // _MSC_VER >= 1000/////////////////////////////////////////////////////////////////////////////// CClockDlg dialogclass CClockDlg : public CDialog{// Constructionpublic:CClockDlg(CWnd* pParent = NULL);// standard constructor// Dialog Data//{{AFX_DATA(CClockDlg)enum { IDD = IDD_CLOCK_DIALOG };// NOTE: the ClassWizard will add data members here//}}AFX_DATA// ClassWizard generated virtual function overrides//{{AFX_VIRTUAL(CClockDlg)protected:virtual void DoDataExchange(CDataExchange* pDX);// DDX/DDV support//}}AFX_VIRTUAL// Implementationprotected:HICON m_hIcon;// Generated message map functions//{{AFX_MSG(CClockDlg)virtual BOOL OnInitDialog();afx_msg void OnPaint();afx_msg void OnTimer(UINT nIDEvent);afx_msg void OnDestroy();afx_msg BOOL OnEraseBkgnd(CDC* pDC);afx_msg void OnLButtonDown(UINT nFlags, CPoint point);//}}AFX_MSGDECLARE_MESSAGE_MAP()private:CBitmap m_bmpDial;void PaintBkgnd(CDC *pDC);};//{{AFX_INSERT_LOCATION}}// Microsoft eMbedded Visual C++ will insert additional declarations immediately before the previous line.#endif // !defined(AFX_CLOCKDLG_H__266B5DA3_86D9_4ECD_A57A_DBED4E7D26CE__INCLUDED_)

 

源文件：

// ClockDlg.cpp : implementation file//#include "stdafx.h"#include "Clock.h"#include "ClockDlg.h"#ifdef _DEBUG#define new DEBUG_NEW#undef THIS_FILEstatic char THIS_FILE[] = __FILE__;#endif#include <math.h>#define PI3.1415926#define DOT_X400//圆心X轴坐标#define DOT_Y240//圆心Y轴坐标#define LENGTH_HOUR80//时针的长度#define LENGTH_MIN100//分针的长度#define LENGTH_SEC120//秒针的长度#define SCALE_HOUR6//时针的长度比例#define SCALE_MIN10//分针的长度比例#define SCALE_SEC6//秒针的长度比例#define DEGREE_HOUR30//每小时旋转的角度#define DEGREE_MIN6//每分钟旋转的角度#define DEGREE_SEC6//每秒钟旋转的角度#define COLOR_HOURRGB(218,37,29)//时针的颜色#define COLOR_MINRGB(255,255,255)//分针的颜色#define COLOR_SECRGB(255,245,0)//秒针的颜色#define COLOR_DOTRGB(0,0,0)//圆心的颜色#define WINDOW_WIDTH800//窗口的宽度#define WINDOW_HEIGHT480//窗口的高度#define TIMER_TIME_CHECK1/////////////////////////////////////////////////////////////////////////////// CClockDlg dialogCClockDlg::CClockDlg(CWnd* pParent /*=NULL*/): CDialog(CClockDlg::IDD, pParent){//{{AFX_DATA_INIT(CClockDlg)// NOTE: the ClassWizard will add member initialization here//}}AFX_DATA_INIT// Note that LoadIcon does not require a subsequent DestroyIcon in Win32m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);}void CClockDlg::DoDataExchange(CDataExchange* pDX){CDialog::DoDataExchange(pDX);//{{AFX_DATA_MAP(CClockDlg)// NOTE: the ClassWizard will add DDX and DDV calls here//}}AFX_DATA_MAP}BEGIN_MESSAGE_MAP(CClockDlg, CDialog)//{{AFX_MSG_MAP(CClockDlg)ON_WM_PAINT()ON_WM_TIMER()ON_WM_DESTROY()ON_WM_ERASEBKGND()ON_WM_LBUTTONDOWN()//}}AFX_MSG_MAPEND_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////// CClockDlg message handlersBOOL CClockDlg::OnInitDialog(){CDialog::OnInitDialog();// Set the icon for this dialog. The framework does this automatically// when the application's main window is not a dialogSetIcon(m_hIcon, TRUE);// Set big iconSetIcon(m_hIcon, FALSE);// Set small iconCenterWindow(GetDesktopWindow());// center to the hpc screen// TODO: Add extra initialization hereMoveWindow(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);m_bmpDial.LoadBitmap(IDB_BMP_DIAL);SetTimer(TIMER_TIME_CHECK, 1000, NULL);return TRUE; // return TRUE unless you set the focus to a control}////////////////////////////////////////////////////////////////////////////秒针的绘画函数// CDC* pDC:内存设备环境// int nLength:针的长度// int nScale:针的长度比例// int nDegrees:针的角度// COLORREF clrColor:针的颜色//////////////////////////////////////////////////////////////////////////void DrawSecondHand (CDC* pDC, int nLength, int nScale, int nDegrees, COLORREF clrColor){CPoint point[2];double nRadians = (nDegrees-90)*(PI/180);point[0].x = (int) (nLength * cos (nRadians)) + DOT_X;point[0].y = (int) (nLength * sin (nRadians)) + DOT_Y;point[1].x = -(int) (nLength * cos (nRadians) / nScale) + DOT_X;point[1].y = -(int) (nLength * sin (nRadians) / nScale) + DOT_Y;CPen pen (PS_SOLID, 5, clrColor);CPen* pOldPen = pDC->SelectObject (&pen);pDC->MoveTo (point[0]);pDC->LineTo (point[1]);pDC->SelectObject (pOldPen);}////////////////////////////////////////////////////////////////////////////时针、分针的绘画函数// CDC* pDC:内存设备环境// int nLength:针的长度// int nScale:针的长度比例// int nDegrees:针的角度// COLORREF clrColor:针的颜色//////////////////////////////////////////////////////////////////////////void DrawHand (CDC* pDC, int nLength, int nScale, int nDegrees, COLORREF clrColor){CPoint point[4];double nRadians = (nDegrees-90)*(PI/180);point[0].x = (int) (nLength * cos (nRadians)) + DOT_X;point[0].y = (int) (nLength * sin (nRadians)) + DOT_Y;point[2].x = -(int) (nLength * cos (nRadians) / nScale) + DOT_X;point[2].y = -(int) (nLength * sin (nRadians) / nScale) + DOT_Y;point[1].x = -(int) (nLength * cos (nDegrees*(PI/180)) / nScale) + DOT_X;point[1].y = -(int) (nLength * sin (nDegrees*(PI/180)) / nScale) + DOT_Y;point[3].x = -(int) (nLength * cos ((nDegrees-180)*(PI/180)) / nScale) + DOT_X;point[3].y = -(int) (nLength * sin ((nDegrees-180)*(PI/180)) / nScale) + DOT_Y;CPen pen (PS_SOLID, 0, clrColor);CPen* pOldPen = pDC->SelectObject(&pen);CBrush brush(clrColor);CBrush *pOldBrush = pDC->SelectObject(&brush);pDC->Polygon(point, 4);pDC->SelectObject(pOldPen);pDC->SelectObject(pOldBrush);}void CClockDlg::OnPaint() {CPaintDC dc(this); // device context for painting// TODO: Add your message handler code hereCDC MemDC;MemDC.CreateCompatibleDC(&dc);CBitmap MemBmp;MemBmp.CreateCompatibleBitmap( &dc, WINDOW_WIDTH, WINDOW_HEIGHT );CBitmap *pOldBmp = MemDC.SelectObject( &MemBmp );//绘画底图PaintBkgnd(&MemDC);SYSTEMTIME LocalTime;GetLocalTime(&LocalTime);//绘画时针DrawHand (&MemDC, LENGTH_HOUR, SCALE_HOUR, (LocalTime.wHour * DEGREE_HOUR) + (LocalTime.wMinute / 2), COLOR_HOUR);//绘画分针DrawHand (&MemDC, LENGTH_MIN, SCALE_MIN, LocalTime.wMinute * DEGREE_MIN, COLOR_MIN);//绘画秒针DrawSecondHand (&MemDC, LENGTH_SEC, SCALE_SEC, LocalTime.wSecond * DEGREE_SEC, COLOR_SEC);//绘画圆心点CPen pen (PS_SOLID, 0, COLOR_DOT);CPen* pOldPen = MemDC.SelectObject(&pen);CBrush brush(COLOR_DOT);CBrush *pOldBrush = MemDC.SelectObject(&brush);MemDC.Ellipse(DOT_X-5, DOT_Y-5, DOT_X+5, DOT_Y+5);MemDC.SelectObject(pOldPen);MemDC.SelectObject(pOldBrush);dc.BitBlt(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, &MemDC, 0, 0, SRCCOPY);MemDC.SelectObject(pOldBmp);MemBmp.DeleteObject();MemDC.DeleteDC();// Do not call CDialog::OnPaint() for painting messages}void CClockDlg::OnTimer(UINT nIDEvent) {// TODO: Add your message handler code here and/or call defaultif (nIDEvent == TIMER_TIME_CHECK){Invalidate(TRUE);UpdateWindow();}CDialog::OnTimer(nIDEvent);}void CClockDlg::OnDestroy() {CDialog::OnDestroy();// TODO: Add your message handler code hereKillTimer(TIMER_TIME_CHECK);}BOOL CClockDlg::OnEraseBkgnd(CDC* pDC) {// TODO: Add your message handler code here and/or call default//return CDialog::OnEraseBkgnd(pDC);return FALSE;}void CClockDlg::PaintBkgnd(CDC *pDC){CDC BkDC;BkDC.CreateCompatibleDC(pDC);CBitmap *pOldBmp = BkDC.SelectObject( &m_bmpDial );pDC->BitBlt(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT, &BkDC, 0, 0, SRCCOPY);BkDC.SelectObject(pOldBmp);BkDC.DeleteDC();}void CClockDlg::OnLButtonDown(UINT nFlags, CPoint point) {// TODO: Add your message handler code here and/or call defaultPostMessage(WM_CLOSE, NULL, NULL);CDialog::OnLButtonDown(nFlags, point);}