myview.cpp

Visual C++网络通信编程实用案例精逊配套源码 光盘中存放的是书中涉及的所有实例的源代码和经过编译后的应用程序。所有程序均经过测试

#include "stdafx.h"

#include <afxadv.h>

#include <io.h>
#include <direct.h>

#include "SiteDownload.h"
#include "MyDocument.h"
#include "MyView.h"
#include "InputURLDlg.h"
#include "ConfigureSetting.h"
#include "InputProjectDlg.h"


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

const CString g_strProjDir = "Projects\\";

/////////////////////////////////////////////////////////////////////////////
// CMyView

IMPLEMENT_DYNCREATE(CMyView, CView)

BEGIN_MESSAGE_MAP(CMyView, CView)
	//{{AFX_MSG_MAP(CMyView)
	ON_WM_SIZE()
	ON_NOTIFY(NM_DBLCLK, IDC_TREE, OnDblclkTree)
	ON_COMMAND(ID_FILE_OPTIONS, OnFileOptions)
	ON_COMMAND(ID_SNAG, OnSnag)
	ON_UPDATE_COMMAND_UI(ID_SNAG, OnUpdateSnag)
	ON_COMMAND(ID_STOP, OnStop)
	ON_UPDATE_COMMAND_UI(ID_STOP, OnUpdateStop)
	ON_UPDATE_COMMAND_UI(ID_FILE_OPTIONS, OnUpdateFileOptions)
	ON_COMMAND(ID_FILE_REMOVEALL, OnFileRemoveall)
	ON_UPDATE_COMMAND_UI(ID_FILE_REMOVEALL, OnUpdateFileRemoveall)
	ON_UPDATE_COMMAND_UI(ID_APP_EXIT, OnUpdateAppExit)
	ON_UPDATE_COMMAND_UI(ID_FILE_NEW, OnUpdateFileNew)
	ON_UPDATE_COMMAND_UI(ID_FILE_OPEN, OnUpdateFileOpen)
	ON_UPDATE_COMMAND_UI(ID_FILE_SAVE, OnUpdateFileSave)
	ON_UPDATE_COMMAND_UI(ID_FILE_SAVE_AS, OnUpdateFileSaveAs)
	ON_COMMAND(ID_FILE_NEW, OnFileNew)
	ON_COMMAND(ID_FILE_OPEN, OnFileOpen)
	ON_COMMAND(ID_FILE_RENAME, OnFileRename)
	ON_UPDATE_COMMAND_UI(ID_FILE_RENAME, OnUpdateFileRename)
	ON_COMMAND(ID_FILE_CLOSE, OnFileClose)
	ON_UPDATE_COMMAND_UI(ID_FILE_CLOSE, OnUpdateFileClose)
	//}}AFX_MSG_MAP
	ON_MESSAGE(UM_SHOW_PROMPT,OnShowPrompt)
	ON_UPDATE_COMMAND_UI_RANGE(ID_FILE_MRU_FIRST, ID_FILE_MRU_LAST, OnUpdateFileMRU)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyView construction/destruction

// Constructor
CMyView::CMyView()
{
	m_bSnagging = FALSE;
}

// Destructor
CMyView::~CMyView()
{
}

// Called to modify window creation characteristics
BOOL CMyView::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMyView drawing

// Draws the view -- not used
void CMyView::OnDraw(CDC* pDC)
{
}

/////////////////////////////////////////////////////////////////////////////
// CMyView diagnostics

#ifdef _DEBUG
void CMyView::AssertValid() const
{
	CView::AssertValid();
}

void CMyView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CMyDoc* CMyView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMyDoc)));
	return (CMyDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMyView message handlers

// Called when a new view is created -- for SDI applications this is called
// multiple times.  Therefore, we set a static flag and create the tree
// control the first time the view is initialized.
void CMyView::OnInitialUpdate() 
{
	static BOOL bFirstTime = TRUE;

	CView::OnInitialUpdate();

	// Is this the first time?
	if(bFirstTime)
	{
		// Yes, create the tree control
		CRect rc;
		GetClientRect(&rc);
		m_Tree.Create(TVS_HASLINES|TVS_HASBUTTONS|TVS_LINESATROOT|WS_VISIBLE,
							rc,this,IDC_TREE);
		bFirstTime = FALSE;

		// Cyan is the transparent color in this bitmap
		m_ImageList.Create(IDB_TREE,16,1,RGB(0,128,128));
		m_Tree.SetImageList(&m_ImageList,TVSIL_NORMAL);

		// Create the child progress window too
	}
}

//初始化树形控件的显示

//    根(站点名称) |
//                 |-----文件目录
//                 |-----多媒体/APPLET文件
//                 |-----网页/asp/文本文件
void CMyView::InitTree(CString& strSite)
{
	CMyDoc* pDoc = GetDocument();
	m_htreeRoot = m_htreeMedia = m_htreePages = 0;
	m_Tree.DeleteAllItems();
	m_htreeRoot = m_Tree.AddRootItem(strSite,0);
	if(pDoc->GetOptions()->bContents)
		m_htreeContents = m_Tree.AddChildItem("文件目录",
						m_htreeRoot,CMyTreeCtrl::TOC_NODE);
	if(pDoc->GetOptions()->bMultimedia)
		m_htreeMedia = m_Tree.AddChildItem("多媒体/APPLET文件",m_htreeRoot,
						CMyTreeCtrl::MEDIA_NODE);
	m_htreePages = m_Tree.AddChildItem("网页/asp/文本文件",m_htreeRoot,
						CMyTreeCtrl::PAGES_NODE);
}

//遍历树形控件项htreeParent的子项，并把结果放入加入arrstrEntries数组中
void CMyView::GetChildren(HTREEITEM htreeParent, CStringArray& arrstrEntries)
{
	arrstrEntries.RemoveAll();
	if(htreeParent == NULL) 
		return;
	HTREEITEM htreeItem = m_Tree.GetNextItem(htreeParent,TVGN_CHILD);
	while(htreeItem)
	{
		arrstrEntries.Add(m_Tree.GetItemText(htreeItem));
		htreeItem = m_Tree.GetNextSiblingItem(htreeItem);
	}
}

// 加入子项(由arrstrEntries这个字符串数组保存的)到特定的树形控件项中htreeParent
void CMyView::AddChildren(HTREEITEM htreeParent, CStringArray& arrstrEntries,int nPageType)
{
	if(htreeParent == NULL) 
		return;
	BOOL bPageAdjust = (nPageType == CMyTreeCtrl::PAGE_NODE);
	for(int i = 0; i < arrstrEntries.GetSize(); i++)
	{
		if(bPageAdjust)
		{
			if(arrstrEntries[i].Left(4) == "http")
				nPageType = CMyTreeCtrl::OFFSITE_PAGE_NODE;
			else 
				nPageType = CMyTreeCtrl::PAGE_NODE;
		}
		else 
			nPageType = CMyTreeCtrl::GetMediaType(arrstrEntries[i]);

		m_Tree.AddChildItem(arrstrEntries[i],htreeParent,nPageType);
	}
}

//清空树形控件的所有内容
void CMyView::ClearTree() 
{ 
	if(::IsWindow(m_Tree.GetSafeHwnd()))
		m_Tree.DeleteAllItems(); 

	m_htreeRoot =  NULL;
	m_htreeContents =  NULL;
	m_htreeMedia =  NULL;
	m_htreePages = NULL;
}

//处理树形控件的存储和读取
void CMyView::SerializeTree(CArchive& ar)
{
	CString strSite;
	CMyDoc* pDoc = (CMyDoc *) ar.m_pDocument;
	CStringArray arrstrEntries;

	if(ar.IsStoring())
	{
		strSite = pDoc->GetStartPage();
		ar << strSite;

		GetChildren(m_htreeContents,arrstrEntries);
		arrstrEntries.Serialize(ar);

		GetChildren(m_htreeMedia,arrstrEntries);
		arrstrEntries.Serialize(ar);

		GetChildren(m_htreePages,arrstrEntries);
		arrstrEntries.Serialize(ar);
	}
	else
	{
		ar >> strSite;
		pDoc->SetStartPage(strSite);

		if(!strSite.IsEmpty())
			InitTree(strSite);

		arrstrEntries.Serialize(ar);
		AddChildren(m_htreeContents,arrstrEntries,CMyTreeCtrl::TOC_PAGE_NODE);

		arrstrEntries.Serialize(ar);
		AddChildren(m_htreeMedia,arrstrEntries,CMyTreeCtrl::IMAGE_NODE);

		arrstrEntries.Serialize(ar);
		AddChildren(m_htreePages,arrstrEntries,CMyTreeCtrl::PAGE_NODE);
	}
}

//加入多媒体资源到树形控件的多媒体子项
HTREEITEM CMyView::AddTreeMedia(CString strMedia, int nMediaType)
{
	return m_Tree.AddChildItem(strMedia,m_htreeMedia,nMediaType);
}

//加入网页/asp/文本文件到树形控件的网页/asp/文本子项
HTREEITEM CMyView::AddTreePage(CString& strPage, BOOL bOffsite)
{
	int nPageType = bOffsite?CMyTreeCtrl::OFFSITE_PAGE_NODE: CMyTreeCtrl::PAGE_NODE;
	return m_Tree.AddChildItem(strPage,m_htreePages,nPageType);
}

//加入文件目录到树形控件的文件目录子项
HTREEITEM CMyView::AddTreeContent(CString& strPage)
{
	return m_Tree.AddChildItem(strPage,m_htreeContents,CMyTreeCtrl::TOC_PAGE_NODE);
}

void CMyView::OnSize(UINT nType, int cx, int cy) 
{
	CView::OnSize(nType, cx, cy);
}

//处理树形控件的双击消息
void CMyView::OnDblclkTree(NMHDR* pNMHDR, LRESULT* pResult) 
{
	CPoint pt;
	UINT uFlags = TVHT_ONITEMLABEL; 
	CString strText;

	GetCursorPos(&pt);
	m_Tree.ScreenToClient(&pt);

	HTREEITEM htreeItem = m_Tree.HitTest(pt,&uFlags);

	// Make sure it's not just a category entry that the user clicked on
	if(htreeItem && htreeItem != m_htreeRoot && htreeItem != m_htreeContents && 
				htreeItem != m_htreeMedia && htreeItem != m_htreePages)
	{
		// It's a valid file so get its name
		strText = m_Tree.GetItemText(htreeItem);
		int nIndex = strText.ReverseFind('(');
		if(nIndex >= 0)
		{
			strText = strText.Mid(nIndex+1);
			strText = strText.Left(strText.GetLength()-1);
		}

		CMyDoc *pDoc = GetDocument();

		// Don't pre-pend the path for an EMAIL entry
		if(strText.Left(7) != "mailto:")
			strText = pDoc->GetDirectory()+strText;

		// Let the shell invoke the proper handler for this file
		ShellExecute(NULL,"open",strText,NULL,NULL,SW_SHOWNORMAL);

		*pResult = 1;
	}
	else 
		*pResult = 0;
}

//更改网站下载的配置信息
void CMyView::OnFileOptions()