程序设计实践.pptVIP

(6)售票查询 void CTicketSalingView::OnSelchangedTree1(NMHDR* pNMHDR, LRESULT* pResult) { NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR; HTREEITEM hItem=m_treeBusInfo.GetSelectedItem(); HTREEITEM hParentItem=m_treeBusInfo.GetParentItem(hItem); DWORD data=m_treeBusInfo.GetItemData(hItem); if(hParentItem==NULL){ CTime * ptr=(CTime *)data; FillListData(*ptr); } else{ CBusInfo *ptr=(CBusInfo *)data; FillListData(ptr); } m_treeBusInfo.Expand(hItem,TVE_TOGGLE); *pResult = 0; } 选中日期节点，调用void FillListData(CTime today) 选中班次节点，调用void FillListData(CBusInfo *pBusInfo) 1程序设计实践全文共42页，当前为第31页。 (7) 售票函数 void CTicketSalingView::OnSaleTicket() { CTicketSalingDoc *pDoc=(CTicketSalingDoc *)GetDocument(); HTREEITEM hItem=m_treeBusInfo.GetSelectedItem(); CObject *pObj= m_treeBusInfo.GetItemData(hItem); int nSeat=pDoc-FindSeat((CBusInfo*)pObj); if(nSeat==-1) ::AfxMessageBox(车票已售完！,0,0); else { CBuyTicketDlg *pDlg=new CBuyTicketDlg((CBusInfo*)pObj,nSeat); if(pDlg-DoModal()==IDOK){ pDlg-m_pTraveler-m_pBusInfo-m_nSeatSaled++; pDoc-AddItem(pDlg-m_pTraveler); FillListData((CBusInfo*)pObj); } delete pDlg; } } 1程序设计实践全文共42页，当前为第32页。 int CTicketSalingDoc::FindSeat(CBusInfo *pBusInfo) { POSITION pos; CObject *pObj; int *bitmap; bitmap=new int[pBusInfo-m_nSeat]; for(int i=0;ipBusInfo-m_nSeat;i++) bitmap[i]=0; CTraveler *pTraveler; pos=m_List.GetHeadPosition(); while(pos){ pObj=(CObject *)m_List.GetNext(pos); if(pObj-IsKindOf(RUNTIME_CLASS(CTraveler))) { pTraveler=(CTraveler *)pObj; if(pTraveler-m_strBusID == pBusInfo-m_strBusID) bitmap[pTraveler-m_nSeat-1]=1; } } int res=-1; for(int j=0;jpBusInfo-m_nSeat;j++) if(!bitmap[j]) { res=j+1;break; } return res; } 1程序设计实践全文共42页，当前为第33页。 (8) 退票函数 void CTicketSalingView::OnDeleteTicket() { CTicketSalingDoc *pDoc=GetDocument(); HT