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      1 /*
      2  *  Copyright (C) 2007-2009 Torch Mobile Inc.
      3  *
      4  *  This library is free software; you can redistribute it and/or
      5  *  modify it under the terms of the GNU Library General Public
      6  *  License as published by the Free Software Foundation; either
      7  *  version 2 of the License, or (at your option) any later version.
      8  *
      9  *  This library is distributed in the hope that it will be useful,
     10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  *  Library General Public License for more details.
     13  *
     14  *  You should have received a copy of the GNU Library General Public License
     15  *  along with this library; see the file COPYING.LIB.  If not, write to
     16  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  *  Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 
     21 #include "config.h"
     22 #include "GlyphPageTreeNode.h"
     23 
     24 #include "Font.h"
     25 #include "FontCache.h"
     26 #include "FontData.h"
     27 #include "SimpleFontData.h"
     28 
     29 namespace WebCore {
     30 
     31 DWORD getKnownFontCodePages(const wchar_t* family);
     32 
     33 typedef unsigned (*funcGetCharCodePages)(unsigned short c, unsigned& lastPos);
     34 funcGetCharCodePages getCharCodePages = 0;
     35 
     36 bool GlyphPage::fill(unsigned offset, unsigned length, UChar* buffer, unsigned bufferLength, const SimpleFontData* fontData)
     37 {
     38     if (length != bufferLength)
     39         return false;
     40 
     41     if (fontData->platformData().hfont()) {
     42         DWORD fontCodePages = fontData->platformData().codePages();
     43         if (fontCodePages) {
     44             if (getCharCodePages) {
     45                 unsigned lastPos = 0;
     46                 for (unsigned i = 0; i < bufferLength; ++i) {
     47                     DWORD actualCodePages = getCharCodePages(buffer[i], lastPos);
     48                     if (!actualCodePages || (actualCodePages & fontCodePages))
     49                         setGlyphDataForIndex(offset + i, buffer[i], fontData);
     50                     else
     51                         setGlyphDataForIndex(offset + i, buffer[i], 0);
     52                 }
     53                 return true;
     54 #if defined(IMLANG_FONT_LINK) && (IMLANG_FONT_LINK == 2)
     55             } else if (IMLangFontLink2* langFontLink = fontCache()->getFontLinkInterface()) {
     56 #else
     57             } else if (IMLangFontLink* langFontLink = fontCache()->getFontLinkInterface()) {
     58 #endif
     59                 for (unsigned i = 0; i < bufferLength; ++i) {
     60                     DWORD actualCodePages;
     61                     langFontLink->GetCharCodePages(buffer[i], &actualCodePages);
     62                     if (!actualCodePages || (actualCodePages & fontCodePages))
     63                         setGlyphDataForIndex(offset + i, buffer[i], fontData);
     64                     else
     65                         setGlyphDataForIndex(offset + i, buffer[i], 0);
     66                 }
     67                 return true;
     68             }
     69         }
     70     }
     71 
     72     for (unsigned i = 0; i < length; ++i)
     73         setGlyphDataForIndex(offset + i, buffer[i], fontData);
     74 
     75     return true;
     76 }
     77 
     78 } // namespace WebCore
     79