西安交通大学：《VC++》课程教学资源（教案讲义）附录5：七巧板程序

附录5:七巧板程序 附录5:七巧板程序 / Example13-7:七巧板程序 #include ∥/拼板类 #define maX points #define ChIP Width 240 #define delta class CChip: public CObject DECLARE SERIAL (CChip) CPoint m pointList [MAX POINTS int m nPointCount bli CChipo( voidSetChip(int type, POINT *ppointlist, int count) void DrawChip(CDC *pDC) BOOLPt In Chip (point point) LPCRECT GetRect o void Move To(CSize offset voidSerialize(CArchive &ar) IMPLEMENT SERIAL (CChip, COb ject, 1) /设置拼图块参数 void CChip: SetChip (int type, POINT *ppointlist, int count m for (int i=0; i

附录 5：七巧板程序 372 附录 5: 七巧板程序 // Example 13-7: 七巧板程序 ////////////////////////////////// #include #include // 拼板类 //////////////////////////////////////////////////// #define MAX_POINTS 4 #define CHIP_WIDTH 240 #define DELTA 30 class CChip : public CObject { DECLARE_SERIAL(CChip) int m_nType; CPoint m_pointList[MAX_POINTS]; int m_nPointCount; public: CChip(){} voidSetChip(int type, POINT *ppointlist, int count); voidDrawChip(CDC *pDC); BOOLPtInChip(POINT point); LPCRECT GetRect(); voidMoveTo(CSize offset); voidRotation(); voidSerialize(CArchive &ar); }; IMPLEMENT_SERIAL(CChip, CObject, 1) // 设置拼图块参数 void CChip::SetChip(int type, POINT *ppointlist, int count) { m_nType = type; m_nPointCount = count; for(int i=0; i<count; i++)

附录5:七巧板程序 m pointlist li]= ppointlistlil /绘出拼图块 void CChip: Draw Chip(CDC apDC CPen penNew, *ppenold CBrush brushNew, *pbrushold switch(m n Type) brushNew. CreateSolidBrush(RGB (127, 127, 127)) break brushNew. CreateSolidBrush(RGB(255, 0, 0)) case 3 brushNew. CreateSolidBrush (RGB(0, 255, 0)) break case 4 brushNew. CreateSolidBrush(RGB(0, 0, 255)) break case 5 brushNew.CreateSolidBrush(RGB(127, 127, 0)) break case brushNew. CreateSolidBrush (RGB(127, 0, 127)) break case brushNew. CreateSolidBrush(RGB(0, 127, 127)) pen New CreatePen(PS SOLID, 1, RGB(o, 0, 0)) renold pDC->SelectObject(&penNew) pbrushold pDC->SelectObject(&brushNew)

附录 5：七巧板程序 373 m_pointList[i] = ppointlist[i]; } // 绘出拼图块 void CChip::DrawChip(CDC *pDC) { CPenpenNew, *ppenOld; CBrush brushNew, *pbrushOld; switch(m_nType) { case 1: brushNew.CreateSolidBrush(RGB(127, 127, 127)); break; case 2: brushNew.CreateSolidBrush(RGB(255, 0, 0)); break; case 3: brushNew.CreateSolidBrush(RGB(0, 255, 0)); break; case 4: brushNew.CreateSolidBrush(RGB(0, 0, 255)); break; case 5: brushNew.CreateSolidBrush(RGB(127, 127, 0)); break; case 6: brushNew.CreateSolidBrush(RGB(127, 0, 127)); break; case 7: brushNew.CreateSolidBrush(RGB(0, 127, 127)); break; } penNew.CreatePen(PS_SOLID, 1, RGB(0, 0, 0)); ppenOld = pDC->SelectObject(&penNew); pbrushOld = pDC->SelectObject(&brushNew);

附录5:七巧板程序 pDC->Polygon(m pointList, m nPointCount) pDC->SelectObject(ppenold) pDC->SelectObject(pbrushold /检测一点是否在拼图块中 BOOL CChip: Pt In Chip (point point) rgn. CreatePolygonRgn(m pointList, m nPointCount, 0) return rgn. PtInRegion (point) /取拼图块的包含矩形 LPCRECT CChip: GetRect static rect rect rgn. CreatePolygonRgn(m pointList, m nPointCount, 0) rgn. GetRgnBox(&rect) rect right++ rect, bot tom++ return &rect /旋转拼图块 oid CChip: Rotation O CRgn rgn (m pointList, m nPoint Count, 0) double x=rect. left+rect. Width0/2;//计算旋转中心 double y= rect. toptrect Height(/2 double dx, dy: for (int i=0: i

附录 5：七巧板程序 374 pDC->Polygon(m_pointList, m_nPointCount); pDC->SelectObject(ppenOld); pDC->SelectObject(pbrushOld); } // 检测一点是否在拼图块中 BOOL CChip::PtInChip(POINT point) { CRgn rgn; rgn.CreatePolygonRgn(m_pointList, m_nPointCount, 0); return rgn.PtInRegion(point); } // 取拼图块的包含矩形 LPCRECT CChip::GetRect() { static RECT rect; CRgn rgn; rgn.CreatePolygonRgn(m_pointList, m_nPointCount, 0); rgn.GetRgnBox(&rect); rect.right++; rect.bottom++; return &rect; } // 旋转拼图块 void CChip::Rotation() { CRect rect; CRgn rgn; rgn.CreatePolygonRgn(m_pointList, m_nPointCount, 0); rgn.GetRgnBox(&rect); double x = rect.left+rect.Width()/2; // 计算旋转中心 double y = rect.top+rect.Height()/2; double dx, dy; for(int i=0; i<m_nPointCount; i++) // 旋转各点 {

附录5:七巧板程序 X-X dy =m pointList li. y-y m pointlist[].x=(int)(x+dx=*0. 707 1-dy*0. 7071) m pointlistlil.y =(int)(y+dx*0. 7071+dy*0. 707 /移动拼图块 void CChip: Move To( CSize offset) for (int i=0: i〉> m nPoint Count; for(int i=0; i>m pointList [il /文档类 #define chIp count 7 class CMy Doc public CDocument

附录 5：七巧板程序 375 dx = m_pointList[i].x-x; dy = m_pointList[i].y-y; m_pointList[i].x = (int)(x+dx*0.7071-dy*0.7071); m_pointList[i].y = (int)(y+dx*0.7071+dy*0.7071); } } // 移动拼图块 void CChip::MoveTo(CSize offset) { for(int i=0; i> m_nType; ar >> m_nPointCount; for(int i=0; i> m_pointList[i]; } } // 文档类 //////////////////////////////////////////////////// #define CHIP_COUNT 7 class CMyDoc : public CDocument {

附录5:七巧板程序 DECLARE DYNCREATE( CMyDoc CChip m chipList [CHIP COUNT public void Reset o virtual void Delete Contents virtual void Serialize( CArchive& ar IMPLEMENT DYNCREATE(CMy Doc, CDocument /初始化拼图块 void CMyDoc:: Reseto pOiNt pointList [MAX POINTS pointList [o]. x=DELTA pointList[o]y DEltA pointList[1]. x=DELTA+CHIP WIDTH pointList[l] y DELTA pointList[2]. x= DELTA+CHIP WIDTH/2 pointList [2] y DELTA+CHIP WIDTH/2 m chipList [o]. SetChip(1, pointList, 3) pointList[o]. x =DELTA pointlist[o]. y =DELTA pointList[l].x= DELTA pointList[l]y DELTA+CHIP WIDTH pointList[2]. x= DELTA+CHIP WIDTH/2 pointList [2]y DELTA+CHIP WIDTH/2 m chipList[1]. SetChip(2, pointList, 3); pointList[o]. x= DELTA+CHIP WIDTH pointList[o]y= DELTA pointList[l].x= DELTA+CHIP WIDTH pointList[l] y= DELTA+CHIP WIDTH/2 pointList[2]. x= DELTA+(CHIP WIDTH*3)/4 pointList [2]y DELTA+CHIP WIDTH/4

附录 5：七巧板程序 376 DECLARE_DYNCREATE(CMyDoc) CChip m_chipList[CHIP_COUNT]; public: voidReset(); virtual void DeleteContents(); virtual void Serialize(CArchive& ar); }; IMPLEMENT_DYNCREATE(CMyDoc, CDocument) // 初始化拼图块 void CMyDoc::Reset() { POINT pointList[MAX_POINTS]; pointList[0].x = DELTA; pointList[0].y = DELTA; pointList[1].x = DELTA+CHIP_WIDTH; pointList[1].y = DELTA; pointList[2].x = DELTA+CHIP_WIDTH/2; pointList[2].y = DELTA+CHIP_WIDTH/2; m_chipList[0].SetChip(1, pointList, 3); pointList[0].x = DELTA; pointList[0].y = DELTA; pointList[1].x = DELTA; pointList[1].y = DELTA+CHIP_WIDTH; pointList[2].x = DELTA+CHIP_WIDTH/2; pointList[2].y = DELTA+CHIP_WIDTH/2; m_chipList[1].SetChip(2, pointList, 3); pointList[0].x = DELTA+CHIP_WIDTH; pointList[0].y = DELTA; pointList[1].x = DELTA+CHIP_WIDTH; pointList[1].y = DELTA+CHIP_WIDTH/2; pointList[2].x = DELTA+(CHIP_WIDTH*3)/4; pointList[2].y = DELTA+CHIP_WIDTH/4;

附录5:七巧板程序 m chipList[2]. Set Chip(, pointList, 3) pointList [o]. x =DELTA+CHIP WIDTH/2 pointList[o]y= DELTA+CHIP WIDTH/2 pointList[1]. x=DELTA+CHIP WIDTH/4 pointList[1]y DELTA+(CHIP WIDTH*3)/4 pointList[2]. x= DELTA+(CHIP WIDTH*3)/4 pointList[2] y DELTA+(CHIP WIDTH*3)/4 m chipList[3]. SetChip(4, pointList, 3) pointList [o]. x= DELTA+CHIP WIDTH pointList[o]y DELTA+CHIP WIDTH/2 pointList[l]. x= DELTA+CHIP WIDTH pointList[l]y= DELTA+CHIP WIDTH pointList[2]. x= DELTA+CHIP WIDTH/2 pointList [2]y DELTA+CHIP WIDTH m chipList[4]. SetChip (5, pointList, 3) pointList[o]. x= DELTA+(CHIP WIDTH=*3)/4 pointList[o]y= DELTA+CHIP WIDTH/4 pointList[l]. x= DELTA+CHIP WIDTH/2 pointList[l] y= DELTA+CHIP WIDTH/2 pointList[2]. x =DELTA+(CHIP WIDTH*3)/4 pointList [2] y DELTA+(CHIP WIDTH*3)/4 pointList[3]. x= DELTA+CHIP WIDTH pointList[3]. y =DELTA+CHIP WIDTH/2 m chipList[5]. SetChip (6, pointList, 4) pointList[o]. x=DELTA pointList[o]y= DELTA+CHIP WIDTH pointList[l].x= DELTA+CHIP WIDTH/4 pointList[l] y= DELTA+(CHIP WIDTH*3)/4 pointList[2]. x= DELTA+(CHIP WIDTH*3)/4 pointList[2] y DELTA+(CHIP WIDTH*3)/4

附录 5：七巧板程序 377 m_chipList[2].SetChip(3, pointList, 3); pointList[0].x = DELTA+CHIP_WIDTH/2; pointList[0].y = DELTA+CHIP_WIDTH/2; pointList[1].x = DELTA+CHIP_WIDTH/4; pointList[1].y = DELTA+(CHIP_WIDTH*3)/4; pointList[2].x = DELTA+(CHIP_WIDTH*3)/4; pointList[2].y = DELTA+(CHIP_WIDTH*3)/4; m_chipList[3].SetChip(4, pointList, 3); pointList[0].x = DELTA+CHIP_WIDTH; pointList[0].y = DELTA+CHIP_WIDTH/2; pointList[1].x = DELTA+CHIP_WIDTH; pointList[1].y = DELTA+CHIP_WIDTH; pointList[2].x = DELTA+CHIP_WIDTH/2; pointList[2].y = DELTA+CHIP_WIDTH; m_chipList[4].SetChip(5, pointList, 3); pointList[0].x = DELTA+(CHIP_WIDTH*3)/4; pointList[0].y = DELTA+CHIP_WIDTH/4; pointList[1].x = DELTA+CHIP_WIDTH/2; pointList[1].y = DELTA+CHIP_WIDTH/2; pointList[2].x = DELTA+(CHIP_WIDTH*3)/4; pointList[2].y = DELTA+(CHIP_WIDTH*3)/4; pointList[3].x = DELTA+CHIP_WIDTH; pointList[3].y = DELTA+CHIP_WIDTH/2; m_chipList[5].SetChip(6, pointList, 4); pointList[0].x = DELTA; pointList[0].y = DELTA+CHIP_WIDTH; pointList[1].x = DELTA+CHIP_WIDTH/4; pointList[1].y = DELTA+(CHIP_WIDTH*3)/4; pointList[2].x = DELTA+(CHIP_WIDTH*3)/4; pointList[2].y = DELTA+(CHIP_WIDTH*3)/4;

附录5:七巧板程序 pointList[3]. x=DELTA+CHIP WIDTH/2 pointList[3]y DELTA+CHIP WIDTH m chipList [6]. Set Chip(7, pointList, 4) /清理文档:关闭文档、建立新文档和打开文档前调用 void CMy Doc: DeleteContentsO Reset CDocument:: Delete Contents ∥/系列化:读写文档时自动调用 void CMy Doc: Serialize(CArchive &a for (int i=0: i

附录 5：七巧板程序 378 pointList[3].x = DELTA+CHIP_WIDTH/2; pointList[3].y = DELTA+CHIP_WIDTH; m_chipList[6].SetChip(7, pointList, 4); } // 清理文档：关闭文档、建立新文档和打开文档前调用 void CMyDoc::DeleteContents() { Reset(); CDocument::DeleteContents(); } // 系列化：读写文档时自动调用 void CMyDoc::Serialize(CArchive &ar) { for(int i=0; i<CHIP_COUNT; i++) m_chipList[i].Serialize(ar); } // 视图类 /////////////////////////////////////////////////// class CMyView : public CView { DECLARE_DYNCREATE(CMyView) BOOLm_bCaptured; CPoint m_pointMouse; int m_nCurrIndex; public: CMyView(){m_bCaptured = FALSE;} CMyDoc* GetDocument(){return (CMyDoc*)m_pDocument;} virtual void OnInitialUpdate(); virtual BOOL OnPreparePrinting(CPrintInfo* pInfo); virtual void OnDraw(CDC* pDC); afx_msg void OnLButtonDown(UINT nFlags, CPoint point); afx_msg void OnLButtonUp(UINT nFlags, CPoint point); afx_msg void OnMouseMove(UINT nFlags, CPoint point); afx_msg void OnRButtonDown(UINT nFlags, CPoint point);

附录5:七巧板程序 DECLARE MESSAGE MAP O IMPLEMENT DYNCREATE(CMy View, CView) BEGIN MESSAGE MAP(CMy View, CView) ON WM LBUTTONDOWN O ON WM LBUTTONUP O VEO ON WM RBUTTONDOWN O ON COMMAND (ID FILE PRINT, CView:: OnFilePrint ON COMMAND (ID FILE PRINT DIRECT, CView:: OnFilePrint ON COMMAND (ID FILE PRINT PREVIEW, CView:: OnFilePrintPreview) ND MESSAGE MAP O /更新初始化:当建立新文档或打开文档时调用 void CMyView: OnInitialUpdate o CView:: OnInitialUpdate o Invalidate /绘制视图:程序开始运行或窗体发生变化时自动调用 void CMyView: OnDraw(CDC* pDC) CMyDoc* pDoc Get o ASSERT VALID(pDoc) for(int i=0: im chiplist [i]. DrawChip(pDC) /消息响应:用户点击鼠标左键时调用 void CMyView:: OnLBut ton Down (UINT nFlags, CPoint point) CMyDoc* pDoc GetDocumento ASSERT VALID (pDoc) for(int i=CHIP COUNT-1: i>=0; i--) if(pDoc->m chipList[]. Pt InChip(point))

附录 5：七巧板程序 379 DECLARE_MESSAGE_MAP() }; IMPLEMENT_DYNCREATE(CMyView, CView) BEGIN_MESSAGE_MAP(CMyView, CView) ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() ON_WM_MOUSEMOVE() ON_WM_RBUTTONDOWN() ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview) END_MESSAGE_MAP() // 更新初始化：当建立新文档或打开文档时调用 void CMyView::OnInitialUpdate() { CView::OnInitialUpdate(); Invalidate(); } // 绘制视图：程序开始运行或窗体发生变化时自动调用 void CMyView::OnDraw(CDC* pDC) { CMyDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); for(int i=0; im_chipList[i].DrawChip(pDC); } // 消息响应：用户点击鼠标左键时调用 void CMyView::OnLButtonDown(UINT nFlags, CPoint point) { CMyDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); for(int i=CHIP_COUNT-1; i>=0; i--) if(pDoc->m_chipList[i].PtInChip(point)) {

附录5:七巧板程序 m cAptured TRUE m nturrindex break /释放鼠标左键 void CMyView:: OnLButtonUp qUINT nFlags, CPoint point) f(m cAptured) : ReleaseCapture o /移动鼠标左键 pid CMyView:: On Mouse Move (UINT nFlags, CPoint point) f(m cAptured) ASSERT VALID (pDoc) InvalidateRect(pDoc->m chipList [m nCurrIndex] GetRect O) CSize offset(point-m pointMouse pDoc->m chipList [m nCurrIndex] Move To(offset) InvalidateRect(pDoc->m chipList [m nCurrIndex] GetRect o) m pointMouse point pDoc->SetModifiedFlago /按下鼠标右键:旋转拼图块 void CMyView:: OnRButtonDown(UINT n Flags, CPoint point)

附录 5：七巧板程序 380 SetCapture(); m_bCaptured = TRUE; m_pointMouse= point; m_nCurrIndex= i; break; } } // 释放鼠标左键 void CMyView::OnLButtonUp(UINT nFlags, CPoint point) { if(m_bCaptured) { ::ReleaseCapture(); m_bCaptured = FALSE; } } // 移动鼠标左键 void CMyView::OnMouseMove(UINT nFlags, CPoint point) { if(m_bCaptured) { CMyDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); InvalidateRect(pDoc->m_chipList[m_nCurrIndex].GetRect()); CSize offset(point-m_pointMouse); pDoc->m_chipList[m_nCurrIndex].MoveTo(offset); InvalidateRect(pDoc->m_chipList[m_nCurrIndex].GetRect()); m_pointMouse = point; pDoc->SetModifiedFlag(); } } // 按下鼠标右键: 旋转拼图块 void CMyView::OnRButtonDown(UINT nFlags, CPoint point)

附录5:七巧板程序 ly Doc* pDoc= GetDocumento ASSERT VALID(pDoc) for (int i=CHIP COUNT-1: i>=0: i--) f(pDoc->m chipList [i]. PtIn Chip(point)) InvalidateRect(pDoc->m chipList[i] Get O) Doc->m chipList[i]. Rotation o InvalidateRect (pDoc->m chipList [i]. GetRecto, FALSE) pDoc->SetModifiedFlagO break /准备打印:设置打印参数 BOOL CMyView:: On PreparePrinting(CPrintInfo* pInfo) pInfo->SetMaxPage(1) return DoPreparePrinting(pInfo) /主框架类 class CMainFrame public FRame Wnd DECLARE DYNCREATE(CMainFrame) IMPLEMENT DYNCREATE(CMainFrame, CFrame Wnd) /应用程序类 # define IDR MAINframe128主框架的资源代号 class CMyApp: public CWinApp public virtual BOOL InitInstance o DECLARE MESSAGE MAPO BEGIN MESSAGE MAP(CMyApp, CWinApp)

附录 5：七巧板程序 381 { CMyDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); for(int i=CHIP_COUNT-1; i>=0; i--) if(pDoc->m_chipList[i].PtInChip(point)) { InvalidateRect(pDoc->m_chipList[i].GetRect()); pDoc->m_chipList[i].Rotation(); InvalidateRect(pDoc->m_chipList[i].GetRect(), FALSE); pDoc->SetModifiedFlag(); break; } } // 准备打印：设置打印参数 BOOL CMyView::OnPreparePrinting(CPrintInfo* pInfo) { pInfo->SetMaxPage(1); return DoPreparePrinting(pInfo); } // 主框架类 ////////////////////////////////////////////////// class CMainFrame : public CFrameWnd { DECLARE_DYNCREATE(CMainFrame) }; IMPLEMENT_DYNCREATE(CMainFrame, CFrameWnd) // 应用程序类 /////////////////////////////////////////////// #define IDR_MAINFRAME 128 // 主框架的资源代号 class CMyApp : public CWinApp { public: virtual BOOL InitInstance(); DECLARE_MESSAGE_MAP() }; BEGIN_MESSAGE_MAP(CMyApp, CWinApp)