anyquotedlg.cpp

Visual C++自动查询和智能代理程序设计书籍源码-AnyQuote

// AnyQuoteDlg.cpp : implementation file
//

#include "stdafx.h"
#include "AnyQuote.h"
#include "AnyQuoteDlg.h"
#include "CRobot.h"
#include "CRobotInternet.h"
#include "ParseHtml.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()

////////////////////////////////////////////////////////////////////
// CAnyQuoteDlg dialog

CAnyQuoteDlg::CAnyQuoteDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CAnyQuoteDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CAnyQuoteDlg)
	m_urls = _T("");
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAnyQuoteDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CAnyQuoteDlg)
	DDX_Control(pDX, IDC_URLS, m_urls_ctl);
	DDX_CBString(pDX, IDC_URLS, m_urls);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CAnyQuoteDlg, CDialog)
	//{{AFX_MSG_MAP(CAnyQuoteDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_ADD, OnAdd)
	ON_BN_CLICKED(IDC_REMOVE, OnRemove)
	ON_WM_TIMER()
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_TRAY_NOTIFY, OnTrayNotify)
	ON_COMMAND(IDC_UPDATE, CAnyQuoteDlg::OnMenuUpdate)
	ON_COMMAND(IDC_CONFIGURE, CAnyQuoteDlg::OnMenuConfigure)
	ON_COMMAND(IDC_EXIT, CAnyQuoteDlg::OnMenuExit)
END_MESSAGE_MAP()

////////////////////////////////////////////////////////////////////
// CAnyQuoteDlg message handlers

BOOL CAnyQuoteDlg::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
	
	nSites = 0;
	LoadURLs();

	// Put agent in the Windows system tray

	nTrayData.cbSize = sizeof(NOTIFYICONDATA) ;
	nTrayData.hWnd = m_hWnd;
	nTrayData.uID = 0 ;
	nTrayData.hIcon = LoadIcon (AfxGetInstanceHandle(),
								MAKEINTRESOURCE(IDR_MAINFRAME));
	nTrayData.uCallbackMessage = WM_TRAY_NOTIFY;
	strcpy (nTrayData.szTip, "AnyQuote");
	nTrayData.uFlags = NIF_ICON | NIF_MESSAGE | NIF_TIP;
	Shell_NotifyIcon (NIM_ADD, &nTrayData);

	bHidden = false;

	if (nSites > 0)
	{
		ShowWindow(SW_MINIMIZE);
		SetTimer(1, 1000, NULL);
	} // End if
	
	return TRUE; // return TRUE unless you set the focus to a control
}

void CAnyQuoteDlg::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 CAnyQuoteDlg::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 CAnyQuoteDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CAnyQuoteDlg::OnAdd() 
{
	// Validate the input

	UpdateData(true);

	int nPos = m_urls.Find(" ");
	if (m_urls == "" || nPos == -1)
	{
		MessageBox("Please enter a ticker symbol,"
					   " a space, and a URL.",
				   "Ticker and URL Required",
				   MB_ICONEXCLAMATION);
		return;
	} // End if

	if (nSites == MAX_SITES)
	{
		MessageBox("The maximum number of sites is in use.",
				   "Out of Room",
				   MB_ICONEXCLAMATION);
		return;
	} // End if

	// Add the site

	CWaitCursor wc;

	sSiteSymbol[nSites] = m_urls.Left(nPos);
	sSiteURL[nSites] = m_urls.Mid(nPos + 1);

	m_urls_ctl.AddString(sSiteSymbol[nSites] + " "
						 + sSiteURL[nSites]);

	nSites++;

	m_urls = "";
	UpdateData(false);
	GetDlgItem(IDC_URLS)->SetFocus();	
}

void CAnyQuoteDlg::OnRemove() 
{
	CString sSymbol, sURL;

	UpdateData(true);
	int nPos = m_urls.Find(" ");
	if (nPos == -1) return;
	sSymbol = m_urls.Left(nPos);
	sURL = m_urls.Mid(nPos + 1);

	int nSiteIndex = -1;
	for (int nSite = 0; nSite < nSites; nSite++)
	{
		if (sSiteSymbol[nSite] == sSymbol && sSiteURL[nSite] == sURL)
		{
			nSiteIndex = nSite;
			nSite = nSites;
		} // End if
	} // End for

	if (nSiteIndex == -1)
	{
		MessageBox("You cannot remove " + sSymbol + " / " + sURL 
				       + " because it is not in the list.",
				   "Not Found",
				   MB_ICONEXCLAMATION);
		return;
	} // End if

	CWaitCursor wc;

	// Delete pair of ticker symbol and URL from site variables

	for (nSite = nSiteIndex; nSite < nSites-1; nSite++)
	{
		sSiteSymbol[nSite] = sSiteSymbol[nSite + 1];
		sSiteURL[nSite] = sSiteURL[nSite + 1];
	} // End for
	sSiteSymbol[nSites].Empty();
	sSiteURL[nSites].Empty();
	nSites--;

	// Delete pair of ticker symbol and URL from the list box

	m_urls_ctl.DeleteString(m_urls_ctl.GetCurSel());
}

void CAnyQuoteDlg::OnOK() 
{
	if (nSites == 0)
	{
		MessageBox("You must enter one or more "
				       "symbols and URLs first.",
				   "No Symbol-URL Pairs Entered",
				   MB_ICONEXCLAMATION);
		return;
	} // End if
	ShowWindow(SW_HIDE);
	SaveURLs();
	SetTimer(1, 1000, NULL);
}

void CAnyQuoteDlg::OnTimer(UINT nIDEvent) 
{
	KillTimer(1);
	if (!bHidden)
	{
		ShowWindow(SW_HIDE);
		bHidden = true;
	} // End if
	GetQuotes();
	SetTimer(1, 5 * 60 * 1000, NULL);
	
	CDialog::OnTimer(nIDEvent);
}

// ***************
// *             *
// *  GetQuotes  *
// *             *
// ***************
// Description:	Retrieves stock quote pages, interprets them, and
//				constructs new tooltip text for the system tray icon

void CAnyQuoteDlg::GetQuotes()
{
	// Check web pages

	CRobotInternet internet;
	CString sHTML;
	int nResult;
	CString sErrMsg;
	CString sTooltip = "AnyQuote - ";

	for (int nSite = 0; nSite < nSites; nSite++)
	{
		if (internet.httpGet(sSiteURL[nSite],
							 sHTML,
							 nResult,
							 sErrMsg))
		{
			sTooltip += sSiteSymbol[nSite] + "=" 
						+ InterpretQuotePage(sHTML) + "  ";
		} // End if
	} // End for nSite
	nTrayData.cbSize = sizeof(NOTIFYICONDATA) ;
	nTrayData.hWnd = m_hWnd;
	nTrayData.uID = 0 ;
	if (sTooltip.GetLength() > 63)
		sTooltip = sTooltip.Left(60) + "...";
	strcpy (nTrayData.szTip, sTooltip);
	nTrayData.uFlags = NIF_TIP;
	Shell_NotifyIcon (NIM_MODIFY, &nTrayData);
}

// ************************
// *                      *
// *  InterpretQuotePage  *
// *                      *
// ************************
// Description:	Finds last price information from an HTML page
//				and returns it

CString CAnyQuoteDlg::InterpretQuotePage(const CString& sHTML)
{
	// Load table cells into an array

	#define	MAX_ROWS	200
	#define	MAX_COLS	200
	
	CString sCell[MAX_ROWS][MAX_COLS];

	CString sHtml = sHTML;
	sHtml.MakeUpper();
	ParseHtml(sHtml);
	CString sItem;
	BOOL bInTable = false;
	
	int nRows = 0;
	int nCols = 0;
	int nRow = -1;
	int nCol = -1;
	int nTables = 0;
	for (int e = 0; e < nElements; e++)
	{
		sItem = sElement[e];
		if (sItem.Left(1) == "<")
		{
			if (sItem.Left(6) == "<TABLE")
			{
				bInTable = true;
				nTables++;
			} // End if
			if (sItem.Left(7) == "</TABLE")
			{
				nTables--;
				if (nTables == 0)
					bInTable = false;
			}
			if (bInTable)
			{
				if (sItem.Left(3) == "<TR")
				{
					nRow++;
					if (nRow + 1 > nRows)
						nRows = nRow + 1;
					nCol = -1;
				} // End if
				if (sItem.Left(3) == "<TD" || sItem.Left(3) == "<TH")
				{
					nCol++;
					if (nCol + 1 > nCols)
						nCols = nCol + 1;
					sCell[nRow][nCol] = "";
				} // End if
			} // End if bInTable
		} // End if
		else
		{
			if (bInTable)
			{
				sItem.TrimLeft();
				sItem.TrimRight();
				sCell[nRow][nCol] += sItem;
			} // End if
		} // End else
	} // End for e

	// Table cells are now stored in sCell[0][0] through 
	// sCell[nRows-1][nCols-1]

	// Search for Last Price
	
	CString sValue1, sValue2, sValue3;
	for (int r = 0; r < nRows; r++)
	{
		for (int c = 0; c < nCols; c++)
		{
			sItem = sCell[r][c];
			if (sItem.Find("LAST") != -1 &&
				sItem.Find("TIME") == -1 &&
				sItem.Find("DELAY") == -1)
			{
				sValue1 = PriceOnly(sItem);
				sValue2 = PriceOnly(sCell[r][c + 1]);
				sValue3 = PriceOnly(sCell[r + 1][c]);
				if (sValue1 != "") return sValue1;
				if (sValue2 != "") return sValue2;
				if (sValue3 != "") return sValue3;
			} // End if
		} // End for c
	} // End for r
	return "?";
}

// ***************
// *             *
// *  PriceOnly  *
// *             *
// ***************
// Description:	Returns a copy of a string 
//              with nonprice characters removed

CString CAnyQuoteDlg::PriceOnly(CString sCell)
{
	CString sTemp = sCell;
	// Remove nonnumeric leading characters
	while (sTemp != "" 
		   && (sTemp.GetAt(0) < '0' || sTemp.GetAt(0) > '9'))
		sTemp = sTemp.Mid(1);
	while (sTemp != ""
		   && (sTemp.GetAt(sTemp.GetLength() - 1) < '0'
			   || sTemp.GetAt(sTemp.GetLength()-1) > '9'))
		sTemp = sTemp.Left(sTemp.GetLength() - 1);
	if (sTemp == "")
		return "";
	char c = sTemp.GetAt(0);
	if (c < '0' || c > '9')
		return "";
	else
		return sTemp;
}

// ******************
// *                *
// *  OnTrayNotify  *
// *                *
// ******************
// Tray notification handler

LRESULT CAnyQuoteDlg::OnTrayNotify(WPARAM wParam, LPARAM lParam)
{
	// ---- Right-button down: Pop-up menu ----
	if (lParam==WM_RBUTTONDOWN)
	{
		CMenu menu;
		VERIFY(menu.LoadMenu(IDR_MENU1));
		CMenu* pPopup = menu.GetSubMenu(0);
		ASSERT(pPopup != NULL); 
		CRect screen;
		GetDesktopWindow()->GetWindowRect(screen);
		pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON,
							   screen.right,
							   screen.bottom,
							   AfxGetMainWnd());
	} // End if
	return LRESULT(0);
}

void CAnyQuoteDlg::OnMenuUpdate()
{
	KillTimer(1);
	GetQuotes();
	SetTimer(1, 5 * 60 * 1000, NULL);
}

void CAnyQuoteDlg::OnMenuConfigure()
{
	KillTimer(1);
	ShowWindow(SW_NORMAL);
}

void CAnyQuoteDlg::OnMenuExit()
{
	Shell_NotifyIcon (NIM_DELETE, &nTrayData);
	EndDialog(0);
}

// **************
// *            *
// *  LoadURLs  *
// *            *
// **************
// Description:	Loads list of ticker symbols and URLs
//              from AnyQuote.dat
//
// Outputs:		nSites ........ Number of ticker symbols and URLs
//				sSiteSymbol[] . Array of ticker symbols
//				sSiteURL[] .... Array of URLs

void CAnyQuoteDlg::LoadURLs()
{
	CStdioFile file;
	CString sLine;

	nSites = 0;
	m_urls_ctl.ResetContent();

	if (file.Open("AnyQuote.dat", CFile::modeRead))
	{
		while (file.ReadString(sLine))
		{
			sSiteSymbol[nSites] = sLine;
			file.ReadString(sSiteURL[nSites]);
			m_urls_ctl.AddString(sSiteSymbol[nSites] + " "
								 + sSiteURL[nSites]);
			nSites++;
		} // End while
		file.Close();
	} // End if
}

// **************
// *            *
// *  SaveURLs  *
// *            *
// **************
// Description:	Saves list of ticker symbols and URLs for the sake 
//				of future sessions.
//				Creates the file AnyQuote.dat and writes one ticker
//				symbol to a line and one URL to a line per site.
//
// Inputs:		nSites ........ Number of URLs
//				sSiteURL[] .... Contains the actual URLs

void CAnyQuoteDlg::SaveURLs()
{
	CStdioFile file;

	file.Open("AnyQuote.dat", CFile::modeCreate|CFile::modeWrite);
	for (int u = 0; u < nSites; u++)
	{
		file.WriteString(sSiteSymbol[u] + "\n");
		file.WriteString(sSiteURL[u] + "\n");
	} // End for
	file.Close();
}