cimeex.cpp

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#include "stdafx.h"
#include "cIMEex.h"
#include "./interface/cFont.h"
#include "./interface/cEditbox.h"

cIMEex::cIMEex()
{
	m_wFontIdx	= 0;

	m_pStrBuf	= NULL;
	m_pLineDesc	= NULL;

	m_InsertPos.nLine	= 0;
	m_InsertPos.nIndex	= 0;
	
	m_nCurTotalLen		= 0;
	m_nCurTotalLine		= 1;

	m_nMaxTotalLen		= 128;	//ÀÓÀÇ·Î
	m_nMaxTotalLine		= 1;

	m_bCompositing		= FALSE;
	m_bMultiLine		= FALSE;

	m_bEnterAllow		= TRUE;
	
	m_nLimitWidth		= 1024; //È­¸éÆøÀ¸·Î ±³Ã¼

	m_pParentEdit		= NULL;

	SetValidCheckMethod( VCM_DEFAULT );
	
}


cIMEex::~cIMEex()
{

}


void cIMEex::Init( int nMaxBufSize, int nPixelWidth, BOOL bMultiLine, int nMaxLine )
{
	m_nMaxTotalLen	= nMaxBufSize;

	m_nLimitWidth	= nPixelWidth;
	m_bMultiLine	= bMultiLine;

	if( m_bMultiLine )
	{
		m_nMaxTotalLine	= nMaxLine;
	}
	else
	{
		m_nMaxTotalLine	= 1;
	}


	m_bChanged		= FALSE;

	m_pStrBuf		= new char[nMaxBufSize+1];
	ZeroMemory( m_pStrBuf, nMaxBufSize+1 );
	m_pLineDesc		= new sLineDesc[MAX_LINE];	//·¡ÇÎÇÒ ÇÑÄ­ ´õ...
	ZeroMemory( m_pLineDesc, MAX_LINE * sizeof(sLineDesc) );

	SetValidCheckMethod( VCM_DEFAULT );
}


void cIMEex::Release()
{
	if( m_pStrBuf )
	{
		delete[] m_pStrBuf;
		m_pStrBuf = NULL;
	}

	if( m_pLineDesc )
	{
		delete[] m_pLineDesc;
		m_pLineDesc = NULL;
	}
}


BOOL cIMEex::Insert( char* str )	//Çѹ®ÀÚÀÇ °æ¿ì
{
	m_bChanged = TRUE;

	if( m_bCompositing )
		DeleteBefore();

	int nLen			= strlen( str );
	if( nLen == 0 ) return FALSE;
	
	if( m_nCurTotalLen + nLen > m_nMaxTotalLen )
		return FALSE;

	int nInsertIndex	= GetInsertIndex();
	char* p				= GetInsertBufPtr();

	memmove( p + nLen, p, m_nCurTotalLen - nInsertIndex );
	m_nCurTotalLen		+= nLen;
	memcpy( p, str, nLen );

	m_InsertPos.nIndex	+= nLen;
	m_pLineDesc[m_InsertPos.nLine].nLen += nLen;

	for( int i = m_InsertPos.nLine + 1 ; i < m_nCurTotalLine ; ++ i )
	{
		m_pLineDesc[i].nStartIndex += nLen;
	}

	if( !Wrap( m_InsertPos.nLine  ) )
	{
		DeleteBefore();
		return FALSE;
	}

	return TRUE;
}


BOOL cIMEex::Wrap( int nStartLine )
{
	if( m_bMultiLine == FALSE ) return TRUE;

	LONG lExtent = CFONT_OBJ->GetTextExtentEx( m_wFontIdx,
							m_pStrBuf + m_pLineDesc[nStartLine].nStartIndex,
							m_pLineDesc[nStartLine].nLen );

	int nWrapNum = 0;
	int nStartIndex = m_pLineDesc[nStartLine].nStartIndex;
	int nWrapIndex = m_pLineDesc[nStartLine].nLen;

	char* p;
	int nMoveNum;

////////////////////////
// ±ÛÀÚ°¡ ÆøÀ» ³Ñ¾î°¥ ¶§
	if( lExtent > m_nLimitWidth )
	{
//		if( m_bMultiLine == FALSE || m_nCurTotalLine >= m_nMaxTotalLine )
		if( m_bMultiLine == FALSE || m_nCurTotalLine > m_nMaxTotalLine )
			return FALSE;	//·¡ÇÎ ÇÒ¼ö ¾ø´Ù.
		
		while( lExtent > m_nLimitWidth )		//·¡ÇÎÇÒ ±ÛÀÚ ¼ö¸¦ Á¤ÇÑ´Ù.
		{
			p		 = m_pStrBuf + nStartIndex + nWrapIndex;
//			nMoveNum = IsDBCSLeadByte( *(p-1) ) ? 2 : 1;
			nMoveNum = IsDBCSLeadByte( *CharPrev( m_pStrBuf, p ) ) ? 2 : 1;

			nWrapNum += nMoveNum;
			nWrapIndex -= nMoveNum;
			
			if( m_InsertPos.nIndex > nWrapIndex )
			{
				m_InsertPos.nIndex = nWrapNum;
				++m_InsertPos.nLine;
			}
			
			lExtent = CFONT_OBJ->GetTextExtentEx( m_wFontIdx, 
				m_pStrBuf + m_pLineDesc[nStartLine].nStartIndex,
				nWrapIndex );
		}
		
		if( m_pLineDesc[nStartLine].nEndKind != EK_WRAP )
		{
			//¶óÀÎ »ðÀÔÇÏ°í ¼¼ÆÃ
			for( int i = m_nCurTotalLine ; i > nStartLine ; --i )
			{
				m_pLineDesc[i] = m_pLineDesc[i-1];
			}
			
			m_pLineDesc[nStartLine].nLen -= nWrapNum;
			m_pLineDesc[nStartLine].nEndKind = EK_WRAP;
			
			m_pLineDesc[nStartLine+1].nStartIndex = nStartIndex + nWrapIndex ;
			m_pLineDesc[nStartLine+1].nLen = nWrapNum;
			
			m_nCurTotalLine++;

			return TRUE;
		}
		else
		{			
			m_pLineDesc[nStartLine].nLen -= nWrapNum;
			
			m_pLineDesc[nStartLine+1].nStartIndex -= nWrapNum;
			m_pLineDesc[nStartLine+1].nLen += nWrapNum;
			
			return Wrap( nStartLine + 1 );
			//´Ù½Ã ·¡ÇνÃÀÛ.
		}
	}

////////////////////////
// ±ÛÀÚ°¡ Æøº¸´Ù ÀÛÀ» ¶§
	else
	{
		if( m_pLineDesc[nStartLine].nEndKind != EK_WRAP )
			return TRUE;	//·¡ÇÎÇÒ ÇÊ¿ä¾ø´Ù

		while( 1 )	//ÇÑÄ­¾¿ ¾ÕÀ¸·Î °¡º¸±â
		{
			if( m_pLineDesc[nStartLine+1].nLen <= -nWrapNum ) //±×ÁÙÀÇ ´ÙÀ½±îÁö¸¸.
				break;
			
			p		 = m_pStrBuf + nStartIndex + nWrapIndex;
			nMoveNum = IsDBCSLeadByte( *p ) ? 2 : 1;
			
			nWrapNum -= nMoveNum;
			nWrapIndex += nMoveNum;
			
			lExtent = CFONT_OBJ->GetTextExtentEx( m_wFontIdx, 
				m_pStrBuf + m_pLineDesc[nStartLine].nStartIndex,
				nWrapIndex );

			if( lExtent > m_nLimitWidth )
			{
				nWrapNum += nMoveNum;
				nWrapIndex -= nMoveNum;
				break;
			}
		}

		if( nWrapNum == 0 ) return TRUE;

		m_pLineDesc[nStartLine].nLen -= nWrapNum;
		
		m_pLineDesc[nStartLine+1].nStartIndex -= nWrapNum;
		m_pLineDesc[nStartLine+1].nLen += nWrapNum;

		if( m_pLineDesc[nStartLine+1].nLen <=0 ) //³¡ÀÌ ·¦ÇÎÀϸ®°¡ ¾ø´Ù?
		{
			--m_nCurTotalLine;

			m_pLineDesc[nStartLine].nEndKind = m_pLineDesc[nStartLine+1].nEndKind;

			for( int i = nStartLine+1 ; i < m_nCurTotalLine ; ++i )
			{
				m_pLineDesc[i] = m_pLineDesc[i+1];
			}

			return TRUE;
		}
		
		return Wrap( nStartLine + 1 );
	}
}


//ÇöÀç ¶óÀÎÀÇ ³¡À» Enter¼Ó¼ºÀ» ÁÖ°í ´ÙÀ½ ¶óÀÎÀ» Ãß°¡ÇÑ´Ù.(À¯Àú°¡ ¿£Å͸¦ ´­·¶À»¶§)
BOOL cIMEex::Enter()
{
	if( m_bEnterAllow == FALSE ) return FALSE;

	m_bChanged = TRUE;

	if( m_bMultiLine == FALSE || m_nMaxTotalLine <= m_nCurTotalLine )	return FALSE;

	int nBreakLen	= m_pLineDesc[m_InsertPos.nLine].nLen - m_InsertPos.nIndex;
	int nStartIndex = m_pLineDesc[m_InsertPos.nLine].nStartIndex + m_InsertPos.nIndex;

	m_pLineDesc[m_InsertPos.nLine].nLen		= m_InsertPos.nIndex;
	m_pLineDesc[m_InsertPos.nLine].nEndKind = EK_ENTER;

	m_InsertPos.nIndex = 0;
	++m_InsertPos.nLine;

	for( int i = m_nCurTotalLine ; i >= m_InsertPos.nLine ; --i )
	{
		m_pLineDesc[i] = m_pLineDesc[i-1];
	}

	m_pLineDesc[m_InsertPos.nLine].nLen			= nBreakLen;
	m_pLineDesc[m_InsertPos.nLine].nStartIndex	= nStartIndex;

	++m_nCurTotalLine;

	return TRUE;
}


BOOL cIMEex::CaretMoveLeft()
{
	m_bChanged = TRUE;
	int nInsertIndex	= GetInsertIndex();
	if( nInsertIndex <= 0 ) return FALSE;

	if( m_InsertPos.nIndex <= 0 )	//Á¦ÀÏ ¾ÕÀ̸é ÀüÁÙ ¸ÇµÚ·Î À̵¿
	{
		--m_InsertPos.nLine;
		m_InsertPos.nIndex = m_pLineDesc[m_InsertPos.nLine].nLen;
		if( m_pLineDesc[m_InsertPos.nLine].nEndKind == EK_WRAP )
			CaretMoveLeft();
	}
	else
	{
		char* p				= GetInsertBufPtr();
//		int nMoveNum		= IsDBCSLeadByte( *(p-1) ) ? 2 : 1;
		int nMoveNum		= IsDBCSLeadByte( *CharPrev( m_pStrBuf, p ) ) ? 2 : 1;
		m_InsertPos.nIndex -= nMoveNum;
	}

	return TRUE;
}


BOOL cIMEex::CaretMoveRight()
{
	m_bChanged = TRUE;
	int nInsertIndex	= GetInsertIndex();
	if( nInsertIndex >= m_nCurTotalLen ) return FALSE;

	if( m_InsertPos.nIndex >= m_pLineDesc[m_InsertPos.nLine].nLen ) //Á¦ÀÏ µÚ¸é ´ÙÀ½ÁÙ ¸Ç¾ÕÀ¸·Î À̵¿
	{
		++m_InsertPos.nLine;
		m_InsertPos.nIndex = 0;
		if( m_pLineDesc[m_InsertPos.nLine].nEndKind == EK_WRAP )
			CaretMoveRight();
	}
	else
	{
		char* p				= GetInsertBufPtr();
		int nMoveNum		= IsDBCSLeadByte( *p ) ? 2 : 1;
		m_InsertPos.nIndex += nMoveNum;
	}

	return TRUE;
}


//±ÛÀÚ ÆøÀ» °è»êÇÏ¿© Up Down...À¸·Î ¹Ù²Ù±â
BOOL cIMEex::CaretMoveUp()
{
	m_bChanged = TRUE;
	if( m_InsertPos.nLine <= 0 ) return FALSE;

	--m_InsertPos.nLine;

	if( m_InsertPos.nIndex >= m_pLineDesc[m_InsertPos.nLine].nLen )
	{
		m_InsertPos.nIndex = m_pLineDesc[m_InsertPos.nLine].nLen;
	}
	else if( m_InsertPos.nIndex != 0 ) //¸Ç¾ÕÀÌ ¾Æ´Ò¶§
	{
		char* p = GetInsertBufPtr();
//		if( IsDBCSLeadByte( *p ) && IsDBCSLeadByte( *(p-1) ) ) //ÇѱÛÁß°£
		if( p != CharNext( CharPrev( m_pStrBuf, p ) ) )
		{
			--m_InsertPos.nIndex;
		}
	}

	return TRUE;
}


BOOL cIMEex::CaretMoveDown()
{
	m_bChanged = TRUE;
	if( m_InsertPos.nLine >= m_nCurTotalLine - 1 ) return FALSE;
	
	++m_InsertPos.nLine;

	if( m_InsertPos.nIndex >= m_pLineDesc[m_InsertPos.nLine].nLen )
	{
		m_InsertPos.nIndex = m_pLineDesc[m_InsertPos.nLine].nLen;
	}
	else if( m_InsertPos.nIndex != 0 ) //¸Ç¾ÕÀÌ ¾Æ´Ò¶§
	{
		char* p = GetInsertBufPtr();
//		if( IsDBCSLeadByte( *p ) && IsDBCSLeadByte( *(p-1) ) ) //ÇѱÛÁß°£
		if( p != CharNext( CharPrev( m_pStrBuf, p ) ) )
		{
			--m_InsertPos.nIndex;
		}
	}

	return TRUE;
}


BOOL cIMEex::CaretMoveHome()
{
	m_bChanged = TRUE;	
	m_InsertPos.nIndex = 0;
	return TRUE;
}


BOOL cIMEex::CaretMoveEnd()
{
	m_bChanged = TRUE;
	m_InsertPos.nIndex = m_pLineDesc[m_InsertPos.nLine].nLen;
	return TRUE;
}

BOOL cIMEex::CaretMoveFirst()
{
	m_bChanged = TRUE;	//for scroll and so on
	m_InsertPos.nIndex	= 0;