MFC 树形控件加载xml 配置

#include "stafx.h"

/**************************************************************************

THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.

Copyright 1999 - 2000 Microsoft Corporation. All Rights Reserved.
**************************************************************************/

// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//

#if !defined(AFX_STDAFX_H__3C9F0B09_FD51_11D2_AC35_00600812D7F9__INCLUDED_)
#define AFX_STDAFX_H__3C9F0B09_FD51_11D2_AC35_00600812D7F9__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers

#include <afxwin.h> // MFC core and standard components
#include <afxext.h> // MFC extensions
#include <afxdisp.h> // MFC Automation classes
#include <afxdtctl.h> // MFC support for Internet Explorer 4 Common Controls
#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h> // MFC support for Windows Common Controls
#endif // _AFX_NO_AFXCMN_SUPPORT

#import "MSXML.DLL" named_guids

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_STDAFX_H__3C9F0B09_FD51_11D2_AC35_00600812D7F9__INCLUDED_)

#endif // !defined(AFX_XMLTREE_H__3C9F0B05_FD51_11D2_AC35_00600812D7F9__INCLUDED_)

}

#endif // !defined(AFX_XMLTREEDLG_H__3C9F0B07_FD51_11D2_AC35_00600812D7F9__INCLUDED_)

//=--------------------------------------------------------------------------=
// (C) Copyright 1996 - 2000 Microsoft Corporation. All Rights Reserved.
//=--------------------------------------------------------------------------=
// XMLTreeDlg.cpp : implementation file
//

#include "stdafx.h"
#include "XMLTree.h"
#include "XMLTreeDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About

class CAboutDlg : public CDialog
{
public:
CAboutDlg();

// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA

// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL

// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CXMLTreeDlg dialog

CXMLTreeDlg::CXMLTreeDlg(CWnd* pParent /*=NULL*/)
: CDialog(CXMLTreeDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CXMLTreeDlg)
m_filename = _T("");
m_debug = _T("Enter a URL to load or click the open button to find an XML file to open.");
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_XMLTREE);
}

void CXMLTreeDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CXMLTreeDlg)
DDX_Control(pDX, IDC_TREE, m_tree);
DDX_Text(pDX, IDC_FILENAME, m_filename);
DDX_Text(pDX, IDC_DEBUG, m_debug);
//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CXMLTreeDlg, CDialog)
//{{AFX_MSG_MAP(CXMLTreeDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_LOAD, OnLoad)
ON_EN_CHANGE(IDC_FILENAME, OnChangeFilename)
ON_BN_CLICKED(IDC_OPEN, OnOpen)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CXMLTreeDlg message handlers

BOOL CXMLTreeDlg::OnInitDialog()
{
CDialog::OnInitDialog();

// Add "About..." menu item to system menu.

// IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000);

CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
}

// Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon

// TODO: Add extra initialization here

m_imageList.Create(IDB_TREEICON, 16, 4, RGB( 255, 255, 255 ));
m_tree.SetImageList( &m_imageList, TVSIL_NORMAL );

return TRUE; // return TRUE unless you set the focus to a control
}

void CXMLTreeDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}

// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.

void CXMLTreeDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting

SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

// Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2;

// Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}

// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CXMLTreeDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}

void CXMLTreeDlg::OnLoad()
{
GetDlgItemText(IDC_FILENAME, m_filename);
if (0 == m_filename.GetLength())
{
OnOpen();
}
else
{
LoadXML(m_filename);
}
}

int CXMLTreeDlg::LoadXML(CString filename)
{
MSXML::IXMLDOMDocument *pDoc = NULL;
MSXML::IXMLDOMParseError *pParsingErr = NULL;
MSXML::IXMLDOMElement *element = NULL;
MSXML::IXMLDOMNodeList *childs = NULL;
MSXML::IXMLDOMNode *node = NULL;
HTREEITEM ht;

BSTR bstr = NULL;
HRESULT hr;
int rc = 0;
char msg[500];

m_tree.DeleteAllItems();

m_debug = "Loading " + filename;
UpdateData(FALSE);
UpdateWindow();

hr = CoInitialize(NULL);
if(!SUCCEEDED(hr))
return 0;

hr = CoCreateInstance (MSXML::CLSID_DOMDocument, NULL, CLSCTX_INPROC_SERVER | CLSCTX_LOCAL_SERVER,
MSXML::IID_IXMLDOMDocument, (LPVOID *)&pDoc);
if(!pDoc)
{
m_debug = "Error co-creating IXMLDOMDocument";
goto cleanup;
}

pDoc->put_async(VARIANT_FALSE);
bstr = filename.AllocSysString();
hr = pDoc->load (bstr);
SysFreeString(bstr);

if(!hr)
{
long line, linePos;
BSTR reason = NULL;

pDoc->get_parseError(&pParsingErr);

pParsingErr->get_line(&line);
pParsingErr->get_linepos(&linePos);
pParsingErr->get_reason(&reason);
pParsingErr->get_errorCode(&hr);

sprintf(msg, "Error 0x%.8X on line %d, position %d\r\n", hr, line, linePos);

m_debug = reason;
m_debug += CString(msg);

SysFreeString(reason);
}
else
{
m_debug = "Building Tree View...";
UpdateData(FALSE);
UpdateWindow();

pDoc->get_documentElement(&element);

ht = m_tree.InsertItem("#document",0,0,TVI_ROOT,TVI_LAST);

int count = MakeTree(element,ht);

m_tree.Expand(ht,TVE_EXPAND);
ht = m_tree.GetChildItem( ht );
m_tree.Expand(ht,TVE_EXPAND);
rc = 1;

sprintf(msg, "Loaded %d XML nodes.", count);
m_debug = msg;
UpdateData(FALSE);
UpdateWindow();
}

cleanup:
UpdateData(FALSE);
return rc;
}

int CXMLTreeDlg::MakeTree(MSXML::IXMLDOMElement *node, HTREEITEM ht)
{
MSXML::IXMLDOMNodeList *childs = NULL;
MSXML::IXMLDOMNode *childnode = NULL;

BSTR s = NULL;
long i;
HTREEITEM ht2;

// Note this builds the entire tree view. It would
// be much more efficient to build only the visible
// part of the tree and expand the child elements on demand.
// But that is left as an exercise for the reader.

node->get_nodeTypeString(&s);

int result = 1;

if(!wcscmp(s,L"element"))
{
node->get_nodeName(&s);
ht2 = m_tree.InsertItem(CString(s),1,1,ht,TVI_LAST);
} else if(!wcscmp(s,L"text")){
node->get_text(&s);
ht2 = m_tree.InsertItem(CString(s),2,2,ht,TVI_LAST);
} else {
// Note: There are more node types than this.
// Correctly displaying all nodes types is left
// as an exercise for the reader.
node->get_nodeName(&s);
ht2 = m_tree.InsertItem(CString(s),3,3,ht,TVI_LAST);
}

if(node->hasChildNodes())
{
node->get_childNodes(&childs);
for(i=0;i<childs->Getlength();i++)
{
childs->get_item(i,&childnode);
result += MakeTree((MSXML::IXMLDOMElement *)childnode,ht2);
}
}
return result;
}

void CXMLTreeDlg::OnOK()
{
OnLoad();
}

void CXMLTreeDlg::OnChangeFilename()
{
// TODO: If this is a RICHEDIT control, the control will not
// send this notification unless you override the CDialog::OnInitDialog()
// function and call CRichEditCtrl().SetEventMask()
// with the ENM_CHANGE flag ORed into the mask.

// TODO: Add your control notification handler code here
}

void CXMLTreeDlg::OnOpen()
{
// TODO: Add your control notification handler code here
CFileDialog dlg(TRUE,NULL,NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,
"XML Files (*.xml)|*.xml|All Files (*.*)|*.*||",this);

if (IDOK == dlg.DoModal())
{
m_filename = dlg.GetPathName();
UpdateData(FALSE);
LoadXML(m_filename);
}
}

MFC 树形控件加载xml 配置

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