?? lefttreeview.cpp
字號:
// LeftTreeView.cpp : implementation file
//
#include "stdafx.h"
#include "NanjingHospital.h"
#include "LeftTreeView.h"
#include "MainFrm.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CLeftTreeView
IMPLEMENT_DYNCREATE(CLeftTreeView, CFormView)
CLeftTreeView::CLeftTreeView()
: CFormView(CLeftTreeView::IDD)
{
//{{AFX_DATA_INIT(CLeftTreeView)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
}
CLeftTreeView::~CLeftTreeView()
{
}
void CLeftTreeView::DoDataExchange(CDataExchange* pDX)
{
CFormView::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CLeftTreeView)
DDX_Control(pDX, IDC_TREE, m_treeCtrl);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CLeftTreeView, CFormView)
//{{AFX_MSG_MAP(CLeftTreeView)
ON_WM_SIZE()
ON_NOTIFY(TVN_SELCHANGED, IDC_TREE, OnSelchangedTree)
ON_NOTIFY(NM_KILLFOCUS, IDC_TREE, OnKillfocusTree)
ON_WM_CONTEXTMENU()
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CLeftTreeView diagnostics
#ifdef _DEBUG
void CLeftTreeView::AssertValid() const
{
CFormView::AssertValid();
}
void CLeftTreeView::Dump(CDumpContext& dc) const
{
CFormView::Dump(dc);
}
#endif //_DEBUG
/////////////////////////////////////////////////////////////////////////////
// CLeftTreeView message handlers
/*******************************************************************
函數名稱：OnSize(UINT nType, int cx, int cy)
函數類型：void
函數參數：nType, cx, cy
功能描述：1.使樹控件填滿整個視圖
*******************************************************************/
void CLeftTreeView::OnSize(UINT nType, int cx, int cy)
{
CFormView::OnSize(nType, cx, cy);
CFormView::ShowScrollBar(SB_BOTH,FALSE);
if (GetSafeHwnd())
{
CRect rect;
GetClientRect(&rect);
if (m_treeCtrl.GetSafeHwnd())
m_treeCtrl.MoveWindow(&rect);
}
}
/*******************************************************************
函數名稱：OnInitialUpdate()
函數類型：void
函數參數：無
功能描述：1.初始化樹前的圖標，并刷新
*******************************************************************/
void CLeftTreeView::OnInitialUpdate()
{
CFormView::OnInitialUpdate();
// TODO: Add your specialized code here and/or call the base class
m_ImageList.Create(IDB_TREE, 32, 1, RGB(255, 0, 255));
m_treeCtrl.SetImageList(&m_ImageList, LVSIL_NORMAL);
m_hSelItem=NULL;
//圖標
srand((unsigned)time(NULL));
rand();
m_iImage=(int)((float)rand()*8.0/(float)RAND_MAX);
//初始化樹
ShowTree();
}
/*******************************************************************
函數名稱：OnSelchangedTree(NMHDR* pNMHDR, LRESULT* pResult)
函數類型：void
函數參數：pNMHDR pResult
功能描述：1.當選中樹中節點時顯示相應的一級、二級類名
*******************************************************************/
void CLeftTreeView::OnSelchangedTree(NMHDR* pNMHDR, LRESULT* pResult)
{
NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
// TODO: Add your control notification handler code here
CString strRoot, strFirstClass,strSecondClass;
HTREEITEM hRootItem,hFirstClassItem,hSecondClassItem;
HTREEITEM hSelItem,hParent;
BOOL bHasChild;
hSelItem=pNMTreeView->itemNew.hItem;
m_hSelItem=hSelItem;
//有無子
bHasChild=m_treeCtrl.ItemHasChildren(hSelItem);
//其父
hParent=m_treeCtrl.GetParentItem(hSelItem);
//二級類別
if(!bHasChild)
{
hSecondClassItem=hSelItem;
strSecondClass=m_treeCtrl.GetItemText(hSecondClassItem);
hFirstClassItem=m_treeCtrl.GetParentItem(hSecondClassItem);
strFirstClass=m_treeCtrl.GetItemText(hFirstClassItem);
hRootItem=m_treeCtrl.GetParentItem(hFirstClassItem);
strRoot=m_treeCtrl.GetItemText(hRootItem);
//讓輔助框架處理
m_pRightPaneFrame->m_strFirstClass=strFirstClass;
m_pRightPaneFrame->m_strSecondClass=strSecondClass;
m_pRightPaneFrame->SendMessage(LIST_EVERYONE,2,0);
}//所有聯系人
else if(hParent==NULL)
{
hRootItem=hSelItem;
strRoot=m_treeCtrl.GetItemText(hRootItem);
m_pRightPaneFrame->SendMessage(LIST_EVERYONE,0,0);
}
//一級類別
else
{
hFirstClassItem=hSelItem;
hRootItem=m_treeCtrl.GetParentItem(hFirstClassItem);
strFirstClass=m_treeCtrl.GetItemText(hFirstClassItem);
strRoot=m_treeCtrl.GetItemText(hRootItem);
m_pRightPaneFrame->m_strFirstClass=strFirstClass;
m_pRightPaneFrame->SendMessage(LIST_EVERYONE,1,0);
}
*pResult = 0;
}
/*******************************************************************
函數名稱：OpenRecordSet(_RecordsetPtr &recPtr, CString &strSQL)
函數類型：BOOL
函數參數：recPtr, strSQL
功能描述：1.將數據庫中取出的_variant_t類型的變量轉化為
一個CString類型，簡化了對數據庫的訪問
*******************************************************************/
BOOL CLeftTreeView::OpenRecordSet(_RecordsetPtr &recPtr, CString &strSQL)
{
CNanjingHospitalApp* pApp=(CNanjingHospitalApp*)AfxGetApp();
//創建記錄集對象
m_pRecordset.CreateInstance(__uuidof(Recordset));
try
{
//從數據庫中打開表
recPtr->Open(strSQL.AllocSysString(),
pApp->m_pConnection.GetInterfacePtr(),
adOpenDynamic,
adLockOptimistic,
adCmdText);
}
catch (_com_error e)
{
CString strError;
strError.Format("警告：打開數據表時發生異常。 錯誤信息： %s",\
e.ErrorMessage());
AfxMessageBox(strError);
return FALSE;
}
return TRUE;
}
/*******************************************************************
函數名稱：ShowTree()
函數類型：void
函數參數：無
功能描述：1.顯示樹類及其一級、二級類名
*******************************************************************/
void CLeftTreeView::ShowTree()
{
//首先刪除所有的樹項
m_treeCtrl.DeleteAllItems();
CString strSQL;
strSQL="select * from info";
if(!OpenRecordSet(m_pRecordset,strSQL))
{
return;
}
//定義變量
_variant_t varValue;
//從數據庫中開始填充樹
HTREEITEM hRootItem,hFirstClassItem,hSecondClassItem;
hRootItem=m_treeCtrl.InsertItem("所有住院病人", 0, 1);
int i=0;
m_pRecordset->MoveFirst();
while(!m_pRecordset->adoEOF)
{
CString strClass;
varValue=m_pRecordset->GetCollect("一級類別");
strClass=VariantToCString(varValue);
//添加二級類別
hFirstClassItem=AddFirstClassToTree(hRootItem,strClass);
varValue=m_pRecordset->GetCollect("二級類別");
strClass=VariantToCString(varValue);
hSecondClassItem=AddSecondClassToTree(hFirstClassItem,strClass);
//展開根目錄
m_pRecordset->MoveNext();
}
//關閉
m_pRecordset->Close();
m_pRecordset=NULL;
m_treeCtrl.Expand(hRootItem,TVE_EXPAND);
}
HTREEITEM CLeftTreeView::AddFirstClassToTree(HTREEITEM hRootItem,
CString strFirstClass)
{
//從數據庫中開始填充樹
if(hRootItem==NULL)
return NULL;
if(m_treeCtrl.ItemHasChildren(hRootItem))
{
HTREEITEM hFirstClassItem=m_treeCtrl.GetChildItem(hRootItem);
while(hFirstClassItem)
{
CString strItemText =m_treeCtrl.GetItemText(hFirstClassItem);
if(strItemText==strFirstClass)
return hFirstClassItem;
hFirstClassItem=m_treeCtrl.GetNextSiblingItem(hFirstClassItem);
}
}
//插入數據項數據結構
TV_INSERTSTRUCT TCItem;
TCItem.hParent =hRootItem;
TCItem.hInsertAfter = TVI_LAST;
//設屏蔽
TCItem.item.mask=TVIF_TEXT|TVIF_PARAM|TVIF_IMAGE|TVIF_SELECTEDIMAGE;
//序號
TCItem.item.lParam=0;
//正常圖標
TCItem.item.iImage=m_iImage;
//選中時圖標
TCItem.item.iSelectedImage=m_iImage>4?m_iImage-4:m_iImage+1;
TCItem.item.pszText = (LPTSTR)(LPCTSTR)strFirstClass;
HTREEITEM hFirstClassItemNew =m_treeCtrl.InsertItem(&TCItem);
m_treeCtrl.SortChildren(hRootItem);
return hFirstClassItemNew;
}
HTREEITEM CLeftTreeView::AddSecondClassToTree(HTREEITEM hFirstClassItem,
CString strSecondClass)
{
//從數據庫中開始填充樹
if(hFirstClassItem==NULL)
return NULL;
if(m_treeCtrl.ItemHasChildren(hFirstClassItem))
{
HTREEITEM hSecondClassItem=m_treeCtrl.GetChildItem(hFirstClassItem);
while(hSecondClassItem)
{
CString strItemText =m_treeCtrl.GetItemText(hSecondClassItem);
if(strItemText==strSecondClass)
return hSecondClassItem;
hSecondClassItem=m_treeCtrl.GetNextSiblingItem(hSecondClassItem);
}
}
//插入數據項數據結構
TV_INSERTSTRUCT TCItem;
TCItem.hParent =hFirstClassItem;
TCItem.hInsertAfter = TVI_LAST;
//設屏蔽
TCItem.item.mask=TVIF_TEXT|TVIF_PARAM|TVIF_IMAGE|TVIF_SELECTEDIMAGE;
//序號
TCItem.item.lParam=0;
//正常圖標
TCItem.item.iImage=m_iImage>4?m_iImage-3:m_iImage+2;
//選中時圖標
TCItem.item.iSelectedImage=m_iImage>4?m_iImage-2:m_iImage+3;
TCItem.item.pszText = (LPTSTR)(LPCTSTR)strSecondClass;
HTREEITEM hSecondClassItemNew =m_treeCtrl.InsertItem(&TCItem);
m_treeCtrl.SortChildren(hFirstClassItem);
return hSecondClassItemNew;
}
/*******************************************************************
函數名稱：VariantToCString(const _variant_t &var)
函數類型：CString
函數參數：var
功能描述：1.將數據庫中取出的_variant_t類型的變量轉化為
一個CString類型，簡化了對數據庫的訪問
*******************************************************************/
CString CLeftTreeView::VariantToCString(const _variant_t &var)
{
CString strValue;
switch (var.vt)
{
case VT_BSTR://字符串
case VT_LPSTR:
case VT_LPWSTR:
strValue = (LPCTSTR)(_bstr_t)var;
break;
case VT_I1://無符號字符
case VT_UI1:
strValue.Format("%d", var.bVal);
break;
case VT_I2://短整型
strValue.Format("%d", var.iVal);
break;
case VT_UI2://無符號短整型
strValue.Format("%d", var.uiVal);
break;
case VT_INT://整型
strValue.Format("%d", var.intVal);
break;
case VT_I4: //整型
case VT_I8: //長整型
strValue.Format("%d", var.lVal);
break;
case VT_UINT://無符號整型
strValue.Format("%d", var.uintVal);
break;
case VT_UI4: //無符號整型
case VT_UI8: //無符號長整型
strValue.Format("%d", var.ulVal);
break;
case VT_VOID:
strValue.Format("%8x", var.byref);
break;
case VT_R4://浮點型
strValue.Format("%.4f", var.fltVal);
break;
case VT_R8://雙精度型
strValue.Format("%.8f", var.dblVal);
break;
case VT_DECIMAL: //小數
strValue.Format("%.8f", (double)var);
break;
case VT_CY:
{
COleCurrency cy = var.cyVal;
strValue = cy.Format();
}
break;
case VT_BLOB:
case VT_BLOB_OBJECT:
case 0x2011:
strValue = "[BLOB]";
break;
case VT_BOOL://布爾型
strValue = var.boolVal ? "TRUE" : "FALSE";
break;
case VT_DATE: //日期型
{
DATE dt = var.date;
COleDateTime da = COleDateTime(dt);
strValue = da.Format("%Y-%m-%d %H:%M:%S");
}
break;
case VT_NULL://NULL值
case VT_EMPTY://空
strValue = "";
break;
case VT_UNKNOWN://未知類型
default:
strValue = "UN_KNOW";
break;
}
return strValue;
}
/*******************************************************************
函數名稱：OnKillfocusTree(NMHDR* pNMHDR, LRESULT* pResult)
函數類型：void
函數參數：pNMHDR pResult
功能描述：1.使樹中結點全部落選,以便在刪除時可以判斷刪除情況
*******************************************************************/
void CLeftTreeView::OnKillfocusTree(NMHDR* pNMHDR, LRESULT* pResult)
{
// TODO: Add your control notification handler code here
CMainFrame* pMainFrm=(CMainFrame*)AfxGetMainWnd();
m_treeCtrl.SelectItem(NULL); //TVM_GETNEXTITEM
pMainFrm->bTreeSel=FALSE;
*pResult = 0;
}
/*******************************************************************
函數名稱：OnContextMenu(CWnd* pWnd, CPoint point)
函數類型：void
函數參數：pWnd point
功能描述：1.相應點擊一個樹中的結點
*******************************************************************/
void CLeftTreeView::OnContextMenu(CWnd* pWnd, CPoint point)
{
// TODO: Add your message handler code here
if (point != CPoint (-1, -1))
{
//選中點擊的樹項:
CPoint ptTree = point;
m_treeCtrl.ScreenToClient (&ptTree);
HTREEITEM hTreeItem =m_treeCtrl.HitTest(ptTree);
if (hTreeItem != NULL)
{
//首先選中
m_treeCtrl.SelectItem (hTreeItem);
}
}
//賦予輸入焦點
m_treeCtrl.SetFocus ();
//上下文菜單，命令由主框架處理
CMainFrame* pMainFrm=(CMainFrame*)AfxGetMainWnd();
CMenu menu;
menu.LoadMenu(IDR_MAINFRAME);
menu.GetSubMenu(1)
->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON,
point.x, point.y,pMainFrm);
}
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