mfc自己做的一个基于文件实现的职工管理系统

/ #include "stdafx.h" #include "math.h" #include "RoundButton.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif // prototypes COLORREF GetColour(double dAngle, COLORREF crBright, COLORREF crDark); void DrawCircle(CDC* pDC, CPoint p, LONG lRadius, COLORREF crColour, BOOL bDashed = FALSE); void DrawCircle(CDC* pDC, CPoint p, LONG lRadius, COLORREF crBright, COLORREF crDark); // Calculate colour for a point at the given angle by performing a linear // interpolation between the colours crBright and crDark based on the cosine // of the angle between the light source and the point. // // Angles are measured from the +ve x-axis (i.e. (1,0) = 0 degrees, (0,1) = 90 degrees ) // But remember: +y points down! COLORREF GetColour(double dAngle, COLORREF crBright, COLORREF crDark) { #define Rad2Deg 180.0/3.1415 #define LIGHT_SOURCE_ANGLE -2.356 // -2.356 radians = -135 degrees, i.e. From top left ASSERT(dAngle > -3.1416 && dAngle < 3.1416); double dAngleDifference = LIGHT_SOURCE_ANGLE - dAngle; if (dAngleDifference < -3.1415) dAngleDifference = 6.293 + dAngleDifference; else if (dAngleDifference > 3.1415) dAngleDifference = 6.293 - dAngleDifference; double Weight = 0.5*(cos(dAngleDifference)+1.0); BYTE Red = (BYTE) (Weight*GetRValue(crBright) + (1.0-Weight)*GetRValue(crDark)); BYTE Green = (BYTE) (Weight*GetGValue(crBright) + (1.0-Weight)*GetGValue(crDark)); BYTE Blue = (BYTE) (Weight*GetBValue(crBright) + (1.0-Weight)*GetBValue(crDark)); //TRACE("LightAngle = %0.0f, Angle = %3.0f, Diff = %3.0f, Weight = %0.2f, RGB %3d,%3d,%3d\n", // LIGHT_SOURCE_ANGLE*Rad2Deg, dAngle*Rad2Deg, dAngleDifference*Rad2Deg, Weight,Red,Green,Blue); return RGB(Red, Green, Blue); } void DrawCircle(CDC* pDC, CPoint p, LONG lRadius, COLORREF crColour, BOOL bDashed) { const int nDashLength = 1; LONG lError, lXoffset, lYoffset; int nDash = 0; BOOL bDashOn = TRUE; //Check to see that the coordinates are valid ASSERT( (p.x + lRadius <= LONG_MAX) && (p.y + lRadius <= LONG_MAX) ); ASSERT( (p.x - lRadius >= LONG_MIN) && (p.y - lRadius >= LONG_MIN) ); //Set starting values lXoffset = lRadius; lYoffset = 0; lError = -lRadius; do { if (bDashOn) { pDC->SetPixelV(p.x + lXoffset, p.y + lYoffset, crColour); pDC->SetPixelV(p.x + lXoffset, p.y - lYoffset, crColour); pDC->SetPixelV(p.x + lYoffset, p.y + lXoffset, crColour); pDC->SetPixelV(p.x + lYoffset, p.y - lXoffset, crColour); pDC->SetPixelV(p.x - lYoffset, p.y + lXoffset, crColour); pDC->SetPixelV(p.x - lYoffset, p.y - lXoffset, crColour); pDC->SetPixelV(p.x - lXoffset, p.y + lYoffset, crColour); pDC->SetPixelV(p.x - lXoffset, p.y - lYoffset, crColour); } //Advance the error term and the constant X axis step lError += lYoffset++; //Check to see if error term has overflowed if ((lError += lYoffset) >= 0) lError -= --lXoffset * 2; if (bDashed && (++nDash == nDashLength)) { nDash = 0; bDashOn = !bDashOn; } } while (lYoffset <= lXoffset); //Continue until halfway point } void DrawCircle(CDC* pDC, CPoint p, LONG lRadius, COLORREF crBright, COLORREF crDark) { LONG lError, lXoffset, lYoffset; //Check to see that the coordinates are valid ASSERT( (p.x + lRadius <= LONG_MAX) && (p.y + lRadius <= LONG_MAX) ); ASSERT( (p.x - lRadius >= LONG_MIN) && (p.y - lRadius >= LONG_MIN) ); //Set starting values lXoffset = lRadius; lYoffset = 0; lError = -lRadius; do { const double Pi = 3.141592654, Pi_on_2 = Pi * 0.5, Three_Pi_on_2 = Pi * 1.5; COLORREF crColour; double dAngle = atan2((double)lYoffset, (double )lXoffset); //Draw the current pixel, reflected across all eight arcs crColour = GetColour(dAngle, crBright, crDark); pDC->SetPixelV(p.x + lXoffset, p.y + lYoffset, crColour); crColour = GetColour(Pi_on_2 - dAngle, crBright, crDark); pDC->SetPixelV(p.x + lYoffset, p.y + lXoffset, crColour); crColour = GetColour(Pi_on_2 + dAngle, crBright, crDark); pDC->SetPixelV(p.x - lYoffset, p.y + lXoffset, crColour); crColour = GetColour(Pi - dAngle, crBright, crDark); pDC->SetPixelV(p.x - lXoffset, p.y + lYoffset, crColour); crColour = GetColour(-Pi + dAngle, crBright, crDark); pDC->SetPixelV(p.x - lXoffset, p.y - lYoffset, crColour); crColour = GetColour(-Pi_on_2 - dAngle, crBright, crDark); pDC->SetPixelV(p.x - lYoffset, p.y - lXoffset, crColour); crColour = GetColour(-Pi_on_2 + dAngle, crBright, crDark); pDC->SetPixelV(p.x + lYoffset, p.y - lXoffset, crColour); crColour = GetColour(-dAngle, crBright, crDark); pDC->SetPixelV(p.x + lXoffset, p.y - lYoffset, crColour); //Advance the error term and the constant X axis step lError += lYoffset++; //Check to see if error term has overflowed if ((lError += lYoffset) >= 0) lError -= --lXoffset * 2; } while (lYoffset <= lXoffset); //Continue until halfway point } ///////////////////////////////////////////////////////////////////////////// // CRoundButton CRoundButton::CRoundButton() { m_bDrawDashedFocusCircle = TRUE; } CRoundButton::~CRoundButton() { m_rgn.DeleteObject(); } BEGIN_MESSAGE_MAP(CRoundButton, CButton) //{{AFX_MSG_MAP(CRoundButton) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CRoundButton message handlers void CRoundButton::PreSubclassWindow() { CButton::PreSubclassWindow(); ModifyStyle(0, BS_OWNERDRAW); CRect rect; GetClientRect(rect); // Resize the window to make it square rect.bottom = rect.right = min(rect.bottom,rect.right); // Get the vital statistics of the window m_ptCentre = rect.CenterPoint(); m_nRadius = rect.bottom/2-1; // Set the window region so mouse clicks only activate the round section // of the button m_rgn.DeleteObject(); SetWindowRgn(NULL, FALSE); m_rgn.CreateEllipticRgnIndirect(rect); SetWindowRgn(m_rgn, TRUE); // Convert client coords to the parents client coords ClientToScreen(rect); CWnd* pParent = GetParent(); if (pParent) pParent->ScreenToClient(rect); // Resize the window MoveWindow(rect.left, rect.top, rect.Width(), rect.Height(), TRUE); } void CRoundButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) { ASSERT(lpDrawItemStruct != NULL); CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC); CRect rect = lpDrawItemStruct->rcItem; UINT state = lpDrawItemStruct->itemState; UINT nStyle = GetStyle(); int nRadius = m_nRadius; int nSavedDC = pDC->SaveDC(); pDC->SelectStockObject(NULL_BRUSH); pDC->FillSolidRect(rect, ::GetSysColor(COLOR_BTNFACE)); // Draw the focus circle around the button if ((state & ODS_FOCUS) && m_bDrawDashedFocusCircle) DrawCircle(pDC, m_ptCentre, nRadius--, RGB(0,0,0)); // Draw the raised/sunken edges of the button (unless flat) if (nStyle & BS_FLAT) { DrawCircle(pDC, m_ptCentre, nRadius--, RGB(0,0,0)); DrawCircle(pDC, m_ptCentre, nRadius--, ::GetSysColor(COLOR_3DHIGHLIGHT)); } else { if ((state & ODS_SELECTED)) { DrawCircle(pDC, m_ptCentre, nRadius--, ::GetSysColor(COLOR_3DDKSHADOW), ::GetSysColor(COLOR_3DHIGHLIGHT)); DrawCircle(pDC, m_ptCentre, nRadius--, ::GetSysColor(COLOR_3DSHADOW), ::GetSysColor(COLOR_3DLIGHT)); } else { DrawCircle(pDC, m_ptCentre, nRadius--, ::GetSysColor(COLOR_3DHIGHLIGHT), ::GetSysColor(COLOR_3DDKSHADOW)); DrawCircle(pDC, m_ptCentre, nRadius--, ::GetSysColor(COLOR_3DLIGHT), ::GetSysColor(COLOR_3DSHADOW)); } } // draw the text if there is any CString strText; GetWindowText(strText); if (!strText.IsEmpty()) { CRgn rgn; rgn.CreateEllipticRgn(m_ptCentre.x-nRadius, m_ptCentre.y-nRadius, m_ptCentre.x+nRadius, m_ptCentre.y+nRadius); pDC->SelectClipRgn(&rgn); C