1 files changed, 185 insertions, 0 deletions
diff --git a/vcl/source/fontsubset/fontsubset.cxx b/vcl/source/fontsubset/fontsubset.cxx
new file mode 100644
index 000000000000..84f548d0a32f
--- /dev/null
+++ b/vcl/source/fontsubset/fontsubset.cxx
@@ -0,0 +1,185 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_vcl.hxx"
+
+#include <vcl/fontsubset.hxx>
+#include <sft.hxx>
+#include <tools/debug.hxx>
+
+// ====================================================================
+
+FontSubsetInfo::FontSubsetInfo()
+:   m_nAscent( 0)
+,   m_nDescent( 0)
+,   m_nCapHeight( 0)
+,   m_nFontType( FontSubsetInfo::NO_FONT)
+,   mpInFontBytes( NULL)
+,   mnInByteLength( 0)
+,   meInFontType( FontSubsetInfo::NO_FONT)
+,   mpSftTTFont( NULL)
+{}
+
+// --------------------------------------------------------------------
+
+FontSubsetInfo::~FontSubsetInfo()
+{}
+
+// --------------------------------------------------------------------
+
+// prepare subsetting for fonts where the input font file is mapped
+bool FontSubsetInfo::LoadFont(
+    FontSubsetInfo::FontType eInFontType,
+    const unsigned char* pInFontBytes, int nInByteLength)
+{
+    DBG_ASSERT( (mpSftTTFont == NULL), "Subset from SFT and from mapped font-file requested");
+    meInFontType = eInFontType;
+    mpInFontBytes = pInFontBytes;
+    mnInByteLength = nInByteLength;
+    return (mnInByteLength > 0);
+}
+
+// --------------------------------------------------------------------
+
+// prepare subsetting for fonts that are known to the SFT-parser
+bool FontSubsetInfo::LoadFont( vcl::_TrueTypeFont* pSftTTFont )
+{
+    DBG_ASSERT( (mpInFontBytes == NULL), "Subset from SFT and from mapped font-file requested");
+    mpSftTTFont = pSftTTFont;
+    meInFontType = ANY_SFNT;
+    return (mpSftTTFont == NULL);
+}
+
+// --------------------------------------------------------------------
+
+bool FontSubsetInfo::CreateFontSubset(
+    int nReqFontTypeMask,
+    FILE* pOutFile, const char* pReqFontName,
+    const long* pReqGlyphIds, const sal_uInt8* pReqEncodedIds, int nReqGlyphCount,
+    sal_Int32* pOutGlyphWidths)
+{
+    // prepare request details needed by all underlying subsetters
+    mnReqFontTypeMask = nReqFontTypeMask;
+    mpOutFile       = pOutFile;
+    mpReqFontName   = pReqFontName;
+    mpReqGlyphIds   = pReqGlyphIds;
+    mpReqEncodedIds = pReqEncodedIds;
+    mnReqGlyphCount = nReqGlyphCount;
+
+    // TODO: move the glyphid/encid/notdef reshuffling from the callers to here
+
+    // dispatch to underlying subsetters
+    bool bOK = false;
+
+    // TODO: better match available input-type to possible subset-types
+    switch( meInFontType) {
+    case SFNT_TTF:
+    case SFNT_CFF:
+    case ANY_SFNT:
+        bOK = CreateFontSubsetFromSfnt( pOutGlyphWidths);
+        break;
+    case CFF_FONT:
+        bOK = CreateFontSubsetFromCff( pOutGlyphWidths);
+        break;
+    case TYPE1_PFA:
+    case TYPE1_PFB:
+    case ANY_TYPE1:
+        bOK = CreateFontSubsetFromType1( pOutGlyphWidths);
+        break;
+        // fall trough
+    case NO_FONT:
+        // fall trough
+    default:
+        DBG_ERROR( "unhandled type in CreateFontSubset()");
+        break;
+    }
+
+    return bOK;
+}
+
+// --------------------------------------------------------------------
+
+// TODO: move function to sft.cxx to replace dummy implementation
+bool FontSubsetInfo::CreateFontSubsetFromSfnt( sal_Int32* pOutGlyphWidths )
+{
+    // handle SFNT_CFF fonts
+    int nCffLength = 0;
+    const sal_uInt8* pCffBytes = NULL;
+    if( GetSfntTable( mpSftTTFont, O_CFF, &pCffBytes, &nCffLength))
+    {
+        LoadFont( CFF_FONT, pCffBytes, nCffLength);
+        const bool bOK = CreateFontSubsetFromCff( pOutGlyphWidths);
+        return bOK;
+    }
+
+    // handle SFNT_TTF fonts
+    // by forwarding the subset request to AG's sft subsetter
+#if 1 // TODO: remove conversion tp 16bit glyphids when sft-subsetter has been updated
+    sal_uInt16 aShortGlyphIds[256];
+    for( int i = 0; i < mnReqGlyphCount; ++i)
+        aShortGlyphIds[i] = (sal_uInt16)mpReqGlyphIds[i];
+    // remove const_cast when sft-subsetter is const-correct
+    sal_uInt8* pEncArray = const_cast<sal_uInt8*>( mpReqEncodedIds );
+#endif
+    int nSFTErr = vcl::SF_BADARG;
+    if( (mnReqFontTypeMask & TYPE42_FONT) != 0 )
+    {
+        nSFTErr = CreateT42FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName,
+            aShortGlyphIds, pEncArray, mnReqGlyphCount );
+    }
+    else if( (mnReqFontTypeMask & TYPE3_FONT) != 0 )
+    {
+        nSFTErr = CreateT3FromTTGlyphs( mpSftTTFont, mpOutFile, mpReqFontName,
+            aShortGlyphIds, pEncArray, mnReqGlyphCount,
+                    0 /* 0 = horizontal, 1 = vertical */ );
+    }
+    else if( (mnReqFontTypeMask & SFNT_TTF) != 0 )
+    {
+        // TODO: use CreateTTFromTTGlyphs()
+        // TODO: move functionality from callers here
+    }
+
+    return (nSFTErr != vcl::SF_OK);
+}
+
+// --------------------------------------------------------------------
+
+// TODO: replace dummy implementation
+bool FontSubsetInfo::CreateFontSubsetFromType1( sal_Int32* pOutGlyphWidths)
+{
+#if 0
+    // TODO: replace dummy implementation when someone needs this
+#else
+    (void)pOutGlyphWidths;
+    fprintf(stderr,"CreateFontSubsetFromType1: replace dummy implementation\n");
+#endif
+    return false;
+}
+
+// ====================================================================
+