MFC写的一个立方体demo，支持鼠标点击事件和键盘事件，适合初学者学习

// CubeView.cpp: CCubeView 类的实现 // #include "stdafx.h" // SHARED_HANDLERS 可以在实现预览、缩略图和搜索筛选器句柄的 // ATL 项目中进行定义，并允许与该项目共享文档代码。 #ifndef SHARED_HANDLERS #include "Cube.h" #endif #include "CubeDoc.h" #include "CubeView.h" #ifdef _DEBUG #define new DEBUG_NEW #endif // CCubeView IMPLEMENT_DYNCREATE(CCubeView, CView) BEGIN_MESSAGE_MAP(CCubeView, CView) // 标准打印命令 ON_COMMAND(ID_FILE_PRINT, &CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_DIRECT, &CView::OnFilePrint) ON_COMMAND(ID_FILE_PRINT_PREVIEW, &CView::OnFilePrintPreview) ON_WM_KEYUP() ON_WM_MOUSEWHEEL() ON_WM_MOUSEMOVE() ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() END_MESSAGE_MAP() // CCubeView 构造/析构 CCubeView::CCubeView() noexcept { // TODO: 在此处添加构造代码 } CCubeView::~CCubeView() { } BOOL CCubeView::PreCreateWindow(CREATESTRUCT& cs) { // TODO: 在此处通过修改 // CREATESTRUCT cs 来修改窗口类或样式 return CView::PreCreateWindow(cs); } // CCubeView 绘图 void CCubeView::OnDraw(CDC* pDC) { CCubeDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); if (!pDoc) return; // TODO: 在此处为本机数据添加绘制代码 pDoc->m_cube.drawCube(pDC); } // CCubeView 打印 BOOL CCubeView::OnPreparePrinting(CPrintInfo* pInfo) { // 默认准备 return DoPreparePrinting(pInfo); } void CCubeView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: 添加额外的打印前进行的初始化过程 } void CCubeView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: 添加打印后进行的清理过程 } // CCubeView 诊断 #ifdef _DEBUG void CCubeView::AssertValid() const { CView::AssertValid(); } void CCubeView::Dump(CDumpContext& dc) const { CView::Dump(dc); } CCubeDoc* CCubeView::GetDocument() const // 非调试版本是内联的 { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CCubeDoc))); return (CCubeDoc*)m_pDocument; } #endif //_DEBUG // CCubeView 消息处理程序 void CCubeView::OnKeyUp(UINT nChar, UINT nRepCnt, UINT nFlags) { CView::OnKeyUp(nChar, nRepCnt, nFlags); } BOOL CCubeView::PreTranslateMessage(MSG* pMsg) { CCubeDoc *dc = GetDocument(); if (pMsg->wParam == VK_UP) { dc->m_cube.rotateX(10, STARTX, STARTY); Invalidate(); } else if (pMsg->wParam == VK_DOWN) { dc->m_cube.rotateX(-10, STARTX, STARTY); Invalidate(); } else if (pMsg->wParam == VK_RIGHT) { dc->m_cube.rotateY(10, STARTX, STARTY); Invalidate(); } else if (pMsg->wParam == VK_LEFT) { dc->m_cube.rotateY(-10, STARTX, STARTY); Invalidate(); } else if (pMsg->wParam == 0x44) { dc->m_cube.moveX(10); Invalidate(); } else if (pMsg->wParam == 0x41) { dc->m_cube.moveX(-10); Invalidate(); } else if (pMsg->wParam == 0x57) { dc->m_cube.moveY(-10); Invalidate(); } else if (pMsg->wParam == 0x53) { dc->m_cube.moveY(10); Invalidate(); } else if (pMsg->wParam == 0x5A) { dc->m_cube.moveZ(10); Invalidate(); } else if (pMsg->wParam == 0x58) { dc->m_cube.moveZ(-10); Invalidate(); } return CView::PreTranslateMessage(pMsg); } BOOL CCubeView::OnMouseWheel(UINT nFlags, short zDelta, CPoint pt) { CCubeDoc *dc = GetDocument(); if (zDelta >= 0) { dc->m_cube.scale((double)(1.1), pt.x, pt.y); } else { dc->m_cube.scale((double)(0.9), pt.x, pt.y); } Invalidate(); return CView::OnMouseWheel(nFlags, zDelta, pt); } void CCubeView::OnMouseMove(UINT nFlags, CPoint point) { CCubeDoc *dc = GetDocument(); if (dc->motion == TRUE) { dc->m_cube.rotateX(-1*(point.y - dc->tempy) / 2, dc->startx, dc->starty); dc->m_cube.rotateY((point.x - dc->tempx) / 2, dc->startx, dc->starty); dc->tempx = point.x; dc->tempy = point.y; Invalidate(); } CView::OnMouseMove(nFlags, point); } void CCubeView::OnLButtonDown(UINT nFlags, CPoint point) { CCubeDoc *dc = GetDocument(); dc->motion = TRUE; dc->tempx = point.x; dc->tempy = point.y; dc->startx = point.x; dc->starty = point.y; CView::OnLButtonDown(nFlags, point); } void CCube�