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A Spell Checking Engine

, 5 Feb 2001
A free spell checking engine for use in your C++ applications. Includes the current US English dictionary
// PrPgeSpellOptions_Common.cpp : implementation file
//

#include "stdafx.h"
#include "FPSSpellChecker.h"
#include "PrPgeSpellOptions_Common.h"

#include "FPSSpellCheckEngine.h"

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

int CALLBACK SortList(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort);

/////////////////////////////////////////////////////////////////////////////
// CPrPgeSpellOptions_Common property page

IMPLEMENT_DYNCREATE(CPrPgeSpellOptions_Common, CPropertyPage)

CPrPgeSpellOptions_Common::CPrPgeSpellOptions_Common() : CPropertyPage(CPrPgeSpellOptions_Common::IDD)
{
	m_bDisplayed = FALSE;
	//{{AFX_DATA_INIT(CPrPgeSpellOptions_Common)
	m_strCorrect = _T("");
	m_strInCorrect = _T("");
	//}}AFX_DATA_INIT
	m_pEngine = NULL;
	m_bChangeEdit = TRUE;
}

CPrPgeSpellOptions_Common::~CPrPgeSpellOptions_Common()
{
	CleanupWordList();
}

void CPrPgeSpellOptions_Common::DoDataExchange(CDataExchange* pDX)
{
	CPropertyPage::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CPrPgeSpellOptions_Common)
	DDX_Control(pDX, IDC_LIST, m_lstWords);
	DDX_Text(pDX, IDC_CORRECT, m_strCorrect);
	DDX_Text(pDX, IDC_INCORRECT, m_strInCorrect);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CPrPgeSpellOptions_Common, CPropertyPage)
	//{{AFX_MSG_MAP(CPrPgeSpellOptions_Common)
	ON_EN_CHANGE(IDC_CORRECT, OnChangeCorrect)
	ON_EN_CHANGE(IDC_INCORRECT, OnChangeIncorrect)
	ON_NOTIFY(NM_CLICK, IDC_LIST, OnClickList)
	ON_NOTIFY(LVN_KEYDOWN, IDC_LIST, OnKeydownList)
	ON_NOTIFY(LVN_ITEMCHANGED, IDC_LIST, OnItemchangedList)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CPrPgeSpellOptions_Common message handlers

BOOL CPrPgeSpellOptions_Common::OnInitDialog() 
{
	CPropertyPage::OnInitDialog();

	CRect ListRect;

	m_lstWords.GetWindowRect(ListRect);
	ScreenToClient(ListRect);

	m_lstWords.SetExtendedStyle(LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES);
	m_lstWords.InsertColumn(0, "Incorrect", LVCFMT_LEFT, ListRect.Width() / 2 - 10);
	m_lstWords.InsertColumn(0, "Correct", LVCFMT_LEFT, ListRect.Width() / 2 - 10);
	
	ASSERT(m_pEngine);

	BuildList();

	m_bDisplayed = TRUE;

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CPrPgeSpellOptions_Common::BuildList()
{
	CStdioFile fp;
	CString strLine;
	CString strFile = m_pEngine->GetOptions().GetCommonDic();

	try
	{
		if (fp.Open(strFile, CFile::modeRead | CFile::shareExclusive))
		{
			while (fp.ReadString(strLine))
			{
				strLine.TrimLeft(); strLine.TrimRight();
				int iPos = strLine.Find("=");

				if (iPos > -1)
				{
					CString strIncorrect = strLine.Left(iPos); strIncorrect.TrimLeft(); strIncorrect.TrimRight();
					CString strCorrect = strLine.Mid(iPos+1); strCorrect.TrimLeft(); strCorrect.TrimRight();

					AddEntry(strIncorrect, strCorrect);
				}
			}

			m_lstWords.SortItems(SortList, (DWORD)&m_lstWords);

			AddEntry("(New)","(New)");


			fp.Close();
		}
	}
	catch(CException* pError)
	{
		pError->Delete();
		ASSERT(FALSE);
	}
	catch(...)
	{
		ASSERT(FALSE);
	}

}

void CPrPgeSpellOptions_Common::AddEntry(LPCSTR lpszIncorrect, LPCSTR lpszCorrect)
{
	ASSERT(::IsWindow(m_lstWords.GetSafeHwnd()));

	CDlgSpellChecker_CHANGEALL* pEntry = new CDlgSpellChecker_CHANGEALL;
	ASSERT(pEntry);
	pEntry->strBad = lpszIncorrect;
	pEntry->strGood = lpszCorrect;

	int iItem = m_lstWords.GetItemCount();
	
	iItem = m_lstWords.InsertItem(iItem, lpszIncorrect, 0);
	m_lstWords.SetItemText(iItem, 1, lpszCorrect);
	m_lstWords.SetItemData(iItem, (DWORD)pEntry);

}

void CPrPgeSpellOptions_Common::OnChangeCorrect() 
{
	UpdateListControl();	
}

void CPrPgeSpellOptions_Common::OnChangeIncorrect() 
{
	UpdateListControl();		
}

void CPrPgeSpellOptions_Common::OnKeydownList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	LV_KEYDOWN* pLVKeyDown = (LV_KEYDOWN*)pNMHDR;
	
	ASSERT(pLVKeyDown);

	if (pLVKeyDown->wVKey == VK_DELETE)
	{
		POSITION Pos = m_lstWords.GetFirstSelectedItemPosition();
		if (Pos)
		{
			int iSel = m_lstWords.GetNextSelectedItem(Pos);

			if (iSel < m_lstWords.GetItemCount()-1)
			{
				m_lstWords.DeleteItem(iSel);
				m_lstWords.SetItemState(iSel, LVIS_SELECTED, LVIS_SELECTED);
				m_lstWords.EnsureVisible(iSel, FALSE);
			}
		}
	}


	*pResult = 0;
}

void CPrPgeSpellOptions_Common::OnClickList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	UpdateEditControls();
	
	*pResult = 0;
}

void CPrPgeSpellOptions_Common::OnItemchangedList(NMHDR* pNMHDR, LRESULT* pResult) 
{
	UpdateEditControls();
	
	*pResult = 0;
}

void CPrPgeSpellOptions_Common::UpdateEditControls()
{
	if (!m_bChangeEdit)
		return;

	POSITION Pos = m_lstWords.GetFirstSelectedItemPosition();
	if (Pos)
	{
		int iSel = m_lstWords.GetNextSelectedItem(Pos);

		m_strInCorrect = m_lstWords.GetItemText(iSel, 0);
		m_strCorrect = m_lstWords.GetItemText(iSel, 1);
	}	

	UpdateData(FALSE);
}

void CPrPgeSpellOptions_Common::UpdateListControl()
{
	m_bChangeEdit = FALSE;

	UpdateData();

	CString strBad = m_strInCorrect;
	CString strGood = m_strCorrect;
	int iSel = m_lstWords.GetItemCount()-1;

	strBad.TrimLeft(); strBad.TrimRight();
	strGood.TrimLeft(); strGood.TrimRight();

	if (strBad == "(New)") strBad = "";
	if (strGood == "(New)") strGood = "";

	POSITION Pos = m_lstWords.GetFirstSelectedItemPosition();
	if (Pos)
	{
		iSel = m_lstWords.GetNextSelectedItem(Pos);
	}
	else
	{
		m_lstWords.SetItemState(iSel, LVIS_SELECTED , LVIS_SELECTED );
		m_lstWords.SetSelectionMark(iSel);
		m_lstWords.EnsureVisible(iSel, FALSE);
	}

	m_lstWords.SetItemText(iSel, 0, strBad);
	m_lstWords.SetItemText(iSel, 1, strGood);

	if (iSel == m_lstWords.GetItemCount() - 1)
	{
		iSel = m_lstWords.InsertItem(iSel+1, "(New)", 0);
		m_lstWords.SetItemText(iSel, 1, "(New)");
	}

	m_bChangeEdit = TRUE;
}

void CPrPgeSpellOptions_Common::OnDestroy() 
{
	CPropertyPage::OnDestroy();
	
	CleanupWordList();
	
	int iCount = m_lstWords.GetItemCount();

	for (int iPos = 0; iPos < iCount; iPos++)
	{
		CString strBad = m_lstWords.GetItemText(iPos, 0);
		CString strGood = m_lstWords.GetItemText(iPos, 1);

		CDlgSpellChecker_CHANGEALL* pEntry = new CDlgSpellChecker_CHANGEALL;
		ASSERT(pEntry);
		m_Words.AddTail(pEntry);
		pEntry->strBad = strBad;
		pEntry->strGood = strGood;
	}
}

void CPrPgeSpellOptions_Common::Save(CFPSSpellCheckEngine *pEngine)
{
	if (!m_bDisplayed)
		return;

	ASSERT(pEngine);

	CString strFile = pEngine->GetOptions().GetCommonDic();
	CStdioFile fp;

	try
	{
		if (fp.Open(strFile, CFile::modeCreate | CFile::modeWrite | CFile::shareExclusive))
		{
			POSITION Pos = m_Words.GetHeadPosition();
			while (Pos)
			{
				CDlgSpellChecker_CHANGEALL* pEntry = m_Words.GetNext(Pos);

				CString strBad = pEntry->strBad;
				CString strGood = pEntry->strGood;

				CString strLine = strBad;
				strLine += "=";
				strLine += strGood;

				if (strBad != "(New)")
				{
					fp.WriteString(strLine);
					fp.WriteString("\n");
				}
			}

			fp.Close();
		}
	}
	catch(CException* pError)
	{
		pError->Delete();
		ASSERT(FALSE);
	}
	catch(...)
	{
		ASSERT(FALSE);
	}
}

int CALLBACK SortList(LPARAM lParam1, LPARAM lParam2, LPARAM lParamSort)
{
	int iReturn = 0;
	CDlgSpellChecker_CHANGEALL* pEntry1 = (CDlgSpellChecker_CHANGEALL*)lParam1;
	CDlgSpellChecker_CHANGEALL* pEntry2 = (CDlgSpellChecker_CHANGEALL*)lParam2;

	ASSERT(pEntry1);
	ASSERT(pEntry2);

	if (pEntry1->strBad < pEntry2->strBad)
		return -1;
	if (pEntry1->strBad > pEntry2->strBad)
		return 1;

	return 0;
}


void CPrPgeSpellOptions_Common::CleanupWordList()
{
	CDlgSpellChecker_CHANGEALL* pEntry;
	POSITION Pos;

	Pos = m_Words.GetHeadPosition();
	while (Pos)
	{
		pEntry = m_Words.GetNext(Pos);
		delete pEntry;
	}
	m_Words.RemoveAll();
}

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About the Author

Matt Gullett
Web Developer
United States United States
No Biography provided

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Web04 | 2.8.140916.1 | Last Updated 6 Feb 2001
Article Copyright 2001 by Matt Gullett
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