www.gusucode.com > VC++画笔画刷程序源代码-源码程序 > VC++画笔画刷程序源代码-源码程序/code/使用画笔/Demo/DemoView.cpp
//Download by http://www.NewXing.com // DemoView.cpp : implementation of the CDemoView class // #include "stdafx.h" #include "Demo.h" #include "DemoDoc.h" #include "DemoView.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif ///////////////////////////////////////////////////////////////////////////// // CDemoView IMPLEMENT_DYNCREATE(CDemoView, CView) BEGIN_MESSAGE_MAP(CDemoView, CView) //{{AFX_MSG_MAP(CDemoView) ON_COMMAND(ID_SET_SOLIDSTYLE, OnSetSolidStyle) ON_UPDATE_COMMAND_UI(ID_SET_SOLIDSTYLE, OnUpdateSetSolidStyle) ON_COMMAND(ID_SET_DASHSTYLE, OnSetDashStyle) ON_UPDATE_COMMAND_UI(ID_SET_DASHSTYLE, OnUpdateSetDashStyle) ON_COMMAND(ID_SET_DOTSTYLE, OnSetDotStyle) ON_UPDATE_COMMAND_UI(ID_SET_DOTSTYLE, OnUpdateSetDotStyle) ON_COMMAND(ID_SET_REDCOLOR, OnSetRedColor) ON_UPDATE_COMMAND_UI(ID_SET_REDCOLOR, OnUpdateSetRedColor) ON_COMMAND(ID_SET_GREENCOLOR, OnSetGreenColor) ON_UPDATE_COMMAND_UI(ID_SET_GREENCOLOR, OnUpdateSetGreenColor) ON_COMMAND(ID_SET_BLUECOLOR, OnSetBlueColor) ON_UPDATE_COMMAND_UI(ID_SET_BLUECOLOR, OnUpdateSetBlueColor) ON_WM_LBUTTONDOWN() ON_WM_LBUTTONUP() ON_WM_MOUSEMOVE() ON_COMMAND(ID_SET_WIDTH1, OnSetWidth1) ON_UPDATE_COMMAND_UI(ID_SET_WIDTH1, OnUpdateSetWidth1) ON_COMMAND(ID_SET_WIDTH2, OnSetWidth2) ON_UPDATE_COMMAND_UI(ID_SET_WIDTH2, OnUpdateSetWidth2) ON_COMMAND(ID_SET_WIDTH3, OnSetWidth3) ON_UPDATE_COMMAND_UI(ID_SET_WIDTH3, OnUpdateSetWidth3) //}}AFX_MSG_MAP // Standard printing commands 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() ///////////////////////////////////////////////////////////////////////////// // CDemoView construction/destruction CDemoView::CDemoView() { m_nStyle = PS_SOLID; m_nWidth = 1; m_crColor = RGB(255, 0, 0); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); m_bDraw = FALSE; m_StartPoint = CPoint(0, 0); m_EndPoint = CPoint(0, 0); } CDemoView::~CDemoView() { } BOOL CDemoView::PreCreateWindow(CREATESTRUCT& cs) { // TODO: Modify the Window class or styles here by modifying // the CREATESTRUCT cs return CView::PreCreateWindow(cs); } ///////////////////////////////////////////////////////////////////////////// // CDemoView drawing void CDemoView::OnDraw(CDC* pDC) { CDemoDoc* pDoc = GetDocument(); ASSERT_VALID(pDoc); // TODO: add draw code for native data here } ///////////////////////////////////////////////////////////////////////////// // CDemoView printing BOOL CDemoView::OnPreparePrinting(CPrintInfo* pInfo) { // default preparation return DoPreparePrinting(pInfo); } void CDemoView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add extra initialization before printing } void CDemoView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/) { // TODO: add cleanup after printing } ///////////////////////////////////////////////////////////////////////////// // CDemoView diagnostics #ifdef _DEBUG void CDemoView::AssertValid() const { CView::AssertValid(); } void CDemoView::Dump(CDumpContext& dc) const { CView::Dump(dc); } CDemoDoc* CDemoView::GetDocument() // non-debug version is inline { ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CDemoDoc))); return (CDemoDoc*)m_pDocument; } #endif //_DEBUG ///////////////////////////////////////////////////////////////////////////// // CDemoView message handlers void CDemoView::OnSetSolidStyle() { m_nStyle = PS_SOLID; m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetSolidStyle(CCmdUI* pCmdUI) { if (m_nStyle == PS_SOLID) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetDashStyle() { m_nStyle = PS_DASH; m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetDashStyle(CCmdUI* pCmdUI) { if (m_nStyle == PS_DASH) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetDotStyle() { m_nStyle = PS_DOT; m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetDotStyle(CCmdUI* pCmdUI) { if (m_nStyle == PS_DOT) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetWidth1() { m_nWidth = 1; m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetWidth1(CCmdUI* pCmdUI) { if (m_nWidth == 1) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetWidth2() { m_nWidth = 2; m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetWidth2(CCmdUI* pCmdUI) { if (m_nWidth == 2) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetWidth3() { m_nWidth = 3; m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetWidth3(CCmdUI* pCmdUI) { if (m_nWidth == 3) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetRedColor() { m_crColor = RGB(255, 0, 0); m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetRedColor(CCmdUI* pCmdUI) { if (m_crColor == RGB(255, 0, 0)) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetGreenColor() { m_crColor = RGB(0, 255, 0); m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetGreenColor(CCmdUI* pCmdUI) { if (m_crColor == RGB(255, 255, 0)) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnSetBlueColor() { m_crColor = RGB(0, 0, 255); m_Pen.DeleteObject(); //创建画笔 m_Pen.CreatePen(m_nStyle, m_nWidth, m_crColor); } void CDemoView::OnUpdateSetBlueColor(CCmdUI* pCmdUI) { if (m_crColor == RGB(0, 0, 255)) { pCmdUI->SetCheck(TRUE); } else { pCmdUI->SetCheck(FALSE); } } void CDemoView::OnLButtonDown(UINT nFlags, CPoint point) { m_bDraw = TRUE; m_StartPoint = point; CView::OnLButtonDown(nFlags, point); } void CDemoView::OnLButtonUp(UINT nFlags, CPoint point) { m_bDraw = FALSE; CView::OnLButtonUp(nFlags, point); } void CDemoView::OnMouseMove(UINT nFlags, CPoint point) { if (m_bDraw) { CDC* pDC = GetDC(); //选择画笔 CPen* pOldPen = pDC->SelectObject(&m_Pen); m_EndPoint = point; //绘制直线 pDC->MoveTo(m_StartPoint); pDC->LineTo(m_EndPoint); m_StartPoint = m_EndPoint; //恢复画笔 pDC->SelectObject(pOldPen); } CView::OnMouseMove(nFlags, point); }