mirror of
https://github.com/ONLYOFFICE/core.git
synced 2026-04-07 13:55:33 +08:00
34be4dfc57
git-svn-id: svn://fileserver/activex/AVS/Sources/TeamlabOffice/trunk/ServerComponents@59222 954022d7-b5bf-4e40-9824-e11837661b57
469 lines
11 KiB
C++
469 lines
11 KiB
C++
#include "GlyphString.h"
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#ifndef max
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#define max(a,b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef min
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef WIN32
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#endif
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TGlyphBitmap::TGlyphBitmap()
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{
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nX = 0;
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nY = 0;
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nWidth = 0;
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nHeight = 0;
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bAA = FALSE;
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pData = NULL;
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bFreeData = TRUE;
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}
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TGlyphBitmap::~TGlyphBitmap()
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{
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if (bFreeData && pData != NULL)
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{
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free(pData);
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pData = NULL;
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}
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}
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TGlyph::TGlyph()
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{
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}
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TGlyph::~TGlyph()
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{
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}
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////////////////////////////////
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CGlyphString::CGlyphString()
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{
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m_fX = 0;
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m_fY = 0;
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m_fEndX = 0;
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m_fEndY = 0;
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m_nGlyphIndex = -1;
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m_nGlyphsCount = 0;
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m_pGlyphsBuffer = NULL;
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m_arrCTM[0] = 1;
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m_arrCTM[1] = 0;
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m_arrCTM[2] = 0;
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m_arrCTM[3] = 1;
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m_arrCTM[4] = 0;
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m_arrCTM[5] = 0;
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m_fTransX = 0;
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m_fTransY = 0;
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m_dIDet = 1.0;
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}
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CGlyphString::CGlyphString(const std::wstring& wsString, float fX, float fY)
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{
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const wchar_t* pWchars = wsString.c_str();
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m_nGlyphIndex = 0;
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m_nGlyphsCount = wsString.length();
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if ( m_nGlyphsCount > 0 )
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{
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m_pGlyphsBuffer = new TGlyph[m_nGlyphsCount];
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if (sizeof(wchar_t) == 2)
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{
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int nEmpty = 0;
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for ( int nIndex = 0; nIndex < m_nGlyphsCount; ++nIndex )
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{
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int code = (int)pWchars[nIndex];
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if (code >= 0xD800 && code <= 0xDFFF && (nIndex + 1) < m_nGlyphsCount)
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{
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++nIndex;
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++nEmpty;
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code = 0x10000 + (((code & 0x3FF) << 10) | (0x03FF & pWchars[nIndex]));
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}
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m_pGlyphsBuffer[nIndex].lUnicode = code;
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m_pGlyphsBuffer[nIndex].bBitmap = false;
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}
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m_nGlyphsCount -= nEmpty;
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}
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else
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{
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for ( int nIndex = 0; nIndex < m_nGlyphsCount; ++nIndex )
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{
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m_pGlyphsBuffer[nIndex].lUnicode = (long)pWchars[nIndex];
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m_pGlyphsBuffer[nIndex].bBitmap = false;
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}
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}
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}
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else
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{
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m_pGlyphsBuffer = NULL;
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}
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m_fX = fX;
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m_fY = fY;
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m_arrCTM[0] = 1;
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m_arrCTM[1] = 0;
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m_arrCTM[2] = 0;
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m_arrCTM[3] = 1;
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m_arrCTM[4] = 0;
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m_arrCTM[5] = 0;
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m_fTransX = 0;
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m_fTransY = 0;
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}
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CGlyphString::~CGlyphString()
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{
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if ( m_pGlyphsBuffer )
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delete []m_pGlyphsBuffer;
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}
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void CGlyphString::SetString(const std::wstring& wsString, float fX, float fY)
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{
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m_fX = fX + m_fTransX;
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m_fY = fY + m_fTransY;
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if ( m_pGlyphsBuffer )
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delete []m_pGlyphsBuffer;
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const wchar_t* pWchars = wsString.c_str();
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m_nGlyphIndex = 0;
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m_nGlyphsCount = wsString.length();
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if ( m_nGlyphsCount > 0 )
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{
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m_pGlyphsBuffer = new TGlyph[m_nGlyphsCount];
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if (sizeof(wchar_t) == 2)
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{
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int nEmpty = 0;
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for ( int nIndex = 0; nIndex < m_nGlyphsCount; ++nIndex )
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{
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int code = (int)pWchars[nIndex];
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if (code >= 0xD800 && code <= 0xDFFF && (nIndex + 1) < m_nGlyphsCount)
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{
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++nIndex;
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++nEmpty;
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code = 0x10000 + (((code & 0x3FF) << 10) | (0x03FF & pWchars[nIndex]));
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}
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m_pGlyphsBuffer[nIndex].lUnicode = code;
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m_pGlyphsBuffer[nIndex].bBitmap = false;
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}
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m_nGlyphsCount -= nEmpty;
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}
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else
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{
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for ( int nIndex = 0; nIndex < m_nGlyphsCount; ++nIndex )
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{
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m_pGlyphsBuffer[nIndex].lUnicode = (long)pWchars[nIndex];
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m_pGlyphsBuffer[nIndex].bBitmap = false;
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}
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}
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}
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else
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{
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m_pGlyphsBuffer = NULL;
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}
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}
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void CGlyphString::SetStringGID(const LONG& gid, float fX, float fY)
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{
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m_fX = fX + m_fTransX;
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m_fY = fY + m_fTransY;
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m_nGlyphsCount = 1;
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m_nGlyphIndex = 0;
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if (NULL == m_pGlyphsBuffer)
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m_pGlyphsBuffer = new TGlyph[1];
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// TODO:
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// m_pGlyphsBuffer[0].Clear();
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m_pGlyphsBuffer[0].lUnicode = gid;
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m_pGlyphsBuffer[0].bBitmap = false;
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}
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void CGlyphString::Reset()
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{
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if ( m_pGlyphsBuffer )
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delete []m_pGlyphsBuffer;
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m_fX = 0;
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m_fY = 0;
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m_fEndX = 0;
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m_fEndY = 0;
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m_nGlyphIndex = -1;
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m_nGlyphsCount = 0;
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m_pGlyphsBuffer = NULL;
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m_arrCTM[0] = 1;
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m_arrCTM[1] = 0;
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m_arrCTM[2] = 0;
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m_arrCTM[3] = 1;
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m_arrCTM[4] = 0;
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m_arrCTM[5] = 0;
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m_fTransX = 0;
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m_fTransY = 0;
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}
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int CGlyphString::GetLength()
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{
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return m_nGlyphsCount;
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}
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void CGlyphString::SetBBox(int nIndex, float fLeft, float fTop, float fRight, float fBottom)
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{
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if ( m_nGlyphsCount <= 0 )
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return;
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int nCurIndex = min( m_nGlyphsCount - 1, max( 0, nIndex ) );
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m_pGlyphsBuffer[nCurIndex].fLeft = fLeft;
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m_pGlyphsBuffer[nCurIndex].fTop = fTop;
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m_pGlyphsBuffer[nCurIndex].fRight = fRight;
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m_pGlyphsBuffer[nCurIndex].fBottom = fBottom;
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}
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void CGlyphString::SetMetrics(int nIndex, float fWidth, float fHeight, float fHoriAdvance, float fHoriBearingX, float fHoriBearingY, float fVertAdvance, float fVertBearingX, float fVertBearingY)
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{
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if ( m_nGlyphsCount <= 0 )
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return;
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int nCurIndex = min( m_nGlyphsCount - 1, max( 0, nIndex ) );
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m_pGlyphsBuffer[nCurIndex].oMetrics.fHeight = fHeight;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fHoriAdvance = fHoriAdvance;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fHoriBearingX = fHoriBearingX;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fHoriBearingY = fHoriBearingY;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fVertAdvance = fVertAdvance;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fVertBearingX = fVertBearingX;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fVertBearingY = fVertBearingY;
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m_pGlyphsBuffer[nCurIndex].oMetrics.fWidth = fWidth;
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}
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void CGlyphString::SetStartPoint(int nIndex, float fX, float fY)
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{
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if ( m_nGlyphsCount <= 0 )
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return;
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int nCurIndex = min( m_nGlyphsCount - 1, max( 0, nIndex ) );
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m_pGlyphsBuffer[nCurIndex].fX = fX;
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m_pGlyphsBuffer[nCurIndex].fY = fY;
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}
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void CGlyphString::SetState(int nIndex, EGlyphState eState)
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{
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if ( m_nGlyphsCount <= 0 )
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return;
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int nCurIndex = min( m_nGlyphsCount - 1, max( 0, nIndex ) );
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m_pGlyphsBuffer[nCurIndex].eState = eState;
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}
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void CGlyphString::GetBBox(float *pfLeft, float *pfTop, float *pfRight, float *pfBottom, int nIndex, int nType)
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{
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int nCurIndex = 0;
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if ( nIndex < 0 )
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{
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if ( m_nGlyphsCount <= 0 || m_nGlyphIndex < 1 || m_nGlyphIndex > m_nGlyphsCount )
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return;
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nCurIndex = m_nGlyphIndex - 1;
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}
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else
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{
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if ( m_nGlyphsCount <= 0 )
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return;
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nCurIndex = min( m_nGlyphsCount - 1, max( 0, nIndex ) );
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}
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float fBottom = -m_pGlyphsBuffer[nCurIndex].fBottom;
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float fRight = m_pGlyphsBuffer[nCurIndex].fRight;
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float fLeft = m_pGlyphsBuffer[nCurIndex].fLeft;
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float fTop = -m_pGlyphsBuffer[nCurIndex].fTop;
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if ( 0 == nType && !( 1 == m_arrCTM[0] && 0 == m_arrCTM[1] && 0 == m_arrCTM[2] && 1 == m_arrCTM[3] && 0 == m_arrCTM[4] && 0 == m_arrCTM[5] ) )
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{
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// Применяем глобальную матрицу преобразования и пересчитываем BBox
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float arrfX[4] = { fLeft, fLeft, fRight, fRight };
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float arrfY[4] = { fTop, fBottom, fBottom, fTop };
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float fMinX = (float)(arrfX[0] * m_arrCTM[0] + arrfY[0] * m_arrCTM[2]);
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float fMinY = (float)(arrfX[0] * m_arrCTM[1] + arrfY[0] * m_arrCTM[3]);
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float fMaxX = fMinX;
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float fMaxY = fMinY;
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for ( int nIndex = 1; nIndex < 4; nIndex++ )
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{
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float fX = (float)(arrfX[nIndex] * m_arrCTM[0] + arrfY[nIndex] * m_arrCTM[2]);
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float fY = (float)(arrfX[nIndex] * m_arrCTM[1] + arrfY[nIndex] * m_arrCTM[3]);
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fMaxX = max( fMaxX, fX );
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fMinX = min( fMinX, fX );
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fMaxY = max( fMaxY, fY );
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fMinY = min( fMinY, fY );
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}
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fLeft = fMinX;
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fRight = fMaxX;
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fTop = fMinY;
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fBottom = fMaxY;
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}
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*pfLeft = fLeft + m_pGlyphsBuffer[nCurIndex].fX + m_fX;
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*pfRight = fRight + m_pGlyphsBuffer[nCurIndex].fX + m_fX;
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*pfTop = fTop + m_pGlyphsBuffer[nCurIndex].fY + m_fY;
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*pfBottom = fBottom + m_pGlyphsBuffer[nCurIndex].fY + m_fY;
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}
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void CGlyphString::GetBBox2(float *pfLeft, float *pfTop, float *pfRight, float *pfBottom)
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{
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if ( m_nGlyphsCount <= 0 )
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{
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*pfLeft = 0;
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*pfRight = 0;
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*pfBottom = 0;
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*pfTop = 0;
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}
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float fBottom = 0;
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float fRight = 0;
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float fLeft = 0;
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float fTop = 0;
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for ( int nIndex = 0; nIndex < m_nGlyphsCount; nIndex++ )
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{
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fBottom = max( fBottom, -m_pGlyphsBuffer[nIndex].fBottom );
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//fRight = max( fRight, m_pGlyphsBuffer[nIndex].fRight );
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//fLeft = min( fLeft, m_pGlyphsBuffer[nIndex].fLeft );
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fTop = min( fTop, -m_pGlyphsBuffer[nIndex].fTop );
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}
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if ( !( 1 == m_arrCTM[0] && 0 == m_arrCTM[1] && 0 == m_arrCTM[2] && 1 == m_arrCTM[3] && 0 == m_arrCTM[4] && 0 == m_arrCTM[5] ) )
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{
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// Применяем глобальную матрицу преобразования и пересчитываем BBox
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float arrfX[4] = { fLeft, fLeft, fRight, fRight };
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float arrfY[4] = { fTop, fBottom, fBottom, fTop };
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float fMinX = (float)(arrfX[0] * m_arrCTM[0] + arrfY[0] * m_arrCTM[2]);
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float fMinY = (float)(arrfX[0] * m_arrCTM[1] + arrfY[0] * m_arrCTM[3]);
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float fMaxX = fMinX;
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float fMaxY = fMinY;
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for ( int nIndex = 1; nIndex < 4; nIndex++ )
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{
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float fX = (float)(arrfX[nIndex] * m_arrCTM[0] + arrfY[nIndex] * m_arrCTM[2]);
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float fY = (float)(arrfX[nIndex] * m_arrCTM[1] + arrfY[nIndex] * m_arrCTM[3]);
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fMaxX = max( fMaxX, fX );
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fMinX = min( fMinX, fX );
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fMaxY = max( fMaxY, fY );
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fMinY = min( fMinY, fY );
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}
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fLeft = fMinX;
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fRight = fMaxX;
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fTop = fMinY;
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fBottom = fMaxY;
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}
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fLeft += m_fX;
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fRight += m_fX;
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fTop += m_fY;
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fBottom += m_fY;
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*pfLeft = min( fLeft, min(m_fX, m_fEndX) );
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*pfRight = max( fRight, max(m_fX, m_fEndX) );
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*pfTop = min( fTop, min(m_fY, m_fEndY) );
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*pfBottom = max( fBottom, max(m_fY, m_fEndY) );
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}
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void CGlyphString::SetCTM(float fA, float fB, float fC, float fD, float fE ,float fF)
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{
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m_arrCTM[0] = fA;
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m_arrCTM[1] = fB;
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m_arrCTM[2] = fC;
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m_arrCTM[3] = fD;
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m_arrCTM[4] = fE;
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m_arrCTM[5] = fF;
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double dDet = fA * fD - fB * fC;
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if ( dDet < 0.001 && dDet >= 0 )
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dDet = 0.001;
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else if ( dDet > - 0.001 && dDet < 0 )
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dDet = -0.001;
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m_dIDet = 1 / dDet;
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}
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void CGlyphString::ResetCTM()
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{
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m_arrCTM[0] = 1;
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m_arrCTM[1] = 0;
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m_arrCTM[2] = 0;
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m_arrCTM[3] = 1;
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m_arrCTM[4] = 0;
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m_arrCTM[5] = 0;
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m_dIDet = 1;
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}
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void CGlyphString::Transform(float *pfX, float *pfY)
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{
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float fX = *pfX, fY = *pfY;
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*pfX = (float) ( fX * m_arrCTM[0] + fY * m_arrCTM[2] + m_arrCTM[4] );
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*pfY = (float) ( fX * m_arrCTM[1] + fY * m_arrCTM[3] + m_arrCTM[5] );
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}
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void CGlyphString::SetTrans(float fX, float fY)
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{
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m_fTransX = (float) ( m_dIDet * ( fX * m_arrCTM[3] - m_arrCTM[2] * fY ) );
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m_fTransY = (float) ( m_dIDet * ( fY * m_arrCTM[0] - m_arrCTM[1] * fX ) );
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}
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TGlyph* CGlyphString::GetAt(int nIndex)
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{
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if ( m_nGlyphsCount <= 0 )
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{
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return NULL;
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}
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int nCurIndex = min( m_nGlyphsCount - 1, max( 0, nIndex ) );
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return &(m_pGlyphsBuffer[nCurIndex]);
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}
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INT CGlyphString::GetNext(TGlyph*& pGlyph)
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{
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if ( m_nGlyphIndex >= m_nGlyphsCount || m_nGlyphIndex < 0 )
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{
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pGlyph = NULL;
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return FALSE;
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}
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pGlyph = &m_pGlyphsBuffer[m_nGlyphIndex];
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m_nGlyphIndex++;
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return TRUE;
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}
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