MFC绘图版 软件说明书(4)

广西工学院课程设计用纸

case 4: DrawCircle(m_start,m_end); break; case 5: DrawEllipse(m_start,m_end); break; case 6: DrawRect(m_start,m_end); break; } }

//-------------------------------用于文本文件重绘的代码--------------------// if(m_txt == true && m_DrawIndex == 0) { CRect Rect; GetClientRect(&Rect); pDC->SelectObject(m_font); pDC->DrawText(pBuf,Rect,DT_WORDBREAK); }

//----------------------------用于图片重绘的代码----------------------------------// if(m_bmp == true && m_DrawIndex == 0) { pDC->SetStretchBltMode(COLORONCOLOR); StretchDIBits(pDC->GetSafeHdc(),0,0,BmpInfo.biWidth, BmpInfo.biHeight,0,0,BmpInfo.biWidth, BmpInfo.biHeight,pBmpData,pBmpInfo,DIB_RGB_COLORS,SRCCOPY); } ASSERT_VALID(pDoc); // TODO: add draw code for native data here }

void CMFCView::OnLButtonDown(UINT nFlags, CPoint point) {//鼠标左键按下消息响应函数 // TODO: Add your message handler code here and/or call default switch(m_DrawIndex) { case 1: m_bDraw = true; m_start = point; break; case 2: { m_bDraw = true;

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广西工学院课程设计用纸

m_pStrokeCur = GetDocument()->NewStroke();// Add first point to the new stroke m_pStrokeCur->m_pointArray.Add(point); m_random_start = point; // Serves as the MoveTo() anchor point for the // LineTo() the next point, as the user drags the // mouse. } break; case 3: m_bDraw = true; m_start = point; break; case 4: m_bDraw = true; m_start = point; break; case 5: m_bDraw = true; m_start = point; break; case 6: m_bDraw = true; m_start = point; break; } m_end = point; CView::OnLButtonDown(nFlags, point); }

void CMFCView::OnLButtonUp(UINT nFlags, CPoint point) {//鼠标左键弹起消息响应函数 // TODO: Add your message handler code here and/or call default m_bDraw = false; CClientDC dc(this); CMFCDoc * pDoc = GetDocument(); CPen* pOldPen = dc.SelectObject(pDoc->GetCurrentPen()); switch(m_DrawIndex) { case 1: { m_end = point; DrawLine(m_start,m_end); CGraph *graph = new CGraph(m_DrawIndex,m_start,m_end,m_color,m_nLineWidth,m_nLineStyle);

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广西工学院课程设计用纸

m_graph.Add(graph); } break; case 2: { //m_bDraw = false; dc.MoveTo(m_random_start); dc.LineTo(point); dc.SelectObject(pOldPen); m_pStrokeCur->m_pointArray.Add(point); // ReleaseCapture(); } break; case 3: { m_end = point; DrawArrowLine(m_start,m_end); CGraph *graph = new CGraph(m_DrawIndex,m_start,m_end,m_color,m_nLineWidth,m_nLineStyle); m_graph.Add(graph); } break; case 4: { m_end = point; DrawCircle(m_start,m_end);

CGraph *graph = new CGraph(m_DrawIndex,m_start,m_end,m_color,m_nLineWidth,m_nLineStyle); m_graph.Add(graph); } break; case 5: { m_end = point; DrawEllipse(m_start,m_end);

CGraph *graph = new CGraph(m_DrawIndex,m_start,m_end,m_color,m_nLineWidth,m_nLineStyle); m_graph.Add(graph); } break; case 6: { m_end = point; DrawRect(m_start,m_end); CGraph *graph = new CGraph(m_DrawIndex,m_start,m_end,m_color,m_nLineWidth,m_nLineStyle); m_graph.Add(graph);

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广西工学院课程设计用纸

} break; } CView::OnLButtonUp(nFlags, point); }

void CMFCView::OnMouseMove(UINT nFlags, CPoint point) {//鼠标移动消息响应函数 // TODO: Add your message handler code here and/or call default //-------------------------------------------------------------// //在状态栏上显示时间 CString str; str.Format(\ //得到框架类窗口的指针GetParent()，然后指针强制转换为框架类的类型(CMainFrame*) //调用状态栏类的成员函数setWidnowText ((CMainFrame*)GetParent())->m_wndStatusBar.SetWindowText(str); //------------------------------------------------------------// CClientDC dc(this); CPen* pOldPen; CPen pen(m_nLineStyle,m_nLineWidth,m_color); switch(m_DrawIndex) { case 1: if(m_bDraw == true) { m_end = point; InvalidateRect(NULL,TRUE); break; } case 2: if(m_bDraw == true) { pOldPen= dc.SelectObject(&pen); m_pStrokeCur->m_pointArray.Add(point); dc.MoveTo(m_random_start); dc.LineTo(point); m_random_start = point; } break; case 3: if(m_bDraw == true) { m_end = point;

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广西工学院课程设计用纸

InvalidateRect(NULL,TRUE); break; } break; case 4: if(m_bDraw == true) { m_end = point; InvalidateRect(NULL,TRUE); } break; case 5: if(m_bDraw == true) { m_end = point; InvalidateRect(NULL,TRUE); } break; case 6: if(m_bDraw == true) { m_end = point; InvalidateRect(NULL,TRUE); } break; } CView::OnMouseMove(nFlags, point); }

void CMFCView::OnRButtonDown(UINT nFlags, CPoint point) {//鼠标右键按下消息响应函数 // TODO: Add your message handler code here and/or call default ClientToScreen(&point); CMenu menu; menu.LoadMenu(IDR_MENU1); CMenu* pPopup = menu.GetSubMenu(0); pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y, this);//右键弹出菜单 CView::OnRButtonDown(nFlags, point); }

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