1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #include "precompiled_vcl.hxx" 25 26 #include "pdffontcache.hxx" 27 #include <salgdi.hxx> 28 #include <outfont.hxx> 29 #include <sallayout.hxx> 30 31 using namespace vcl; 32 33 PDFFontCache::FontIdentifier::FontIdentifier( const ImplFontData* pFont, bool bVertical ) : 34 m_nFontId( pFont->GetFontId() ), 35 m_nMagic( pFont->GetFontMagic() ), 36 m_bVertical( bVertical ) 37 { 38 } 39 40 PDFFontCache::FontData& PDFFontCache::getFont( const ImplFontData* pFont, bool bVertical ) 41 { 42 FontIdentifier aId( pFont, bVertical ); 43 FontToIndexMap::iterator it = m_aFontToIndex.find( aId ); 44 if( it != m_aFontToIndex.end() ) 45 return m_aFonts[ it->second ]; 46 m_aFontToIndex[ aId ] = sal_uInt32(m_aFonts.size()); 47 m_aFonts.push_back( FontData() ); 48 return m_aFonts.back(); 49 } 50 51 sal_Int32 PDFFontCache::getGlyphWidth( const ImplFontData* pFont, sal_GlyphId nGlyph, bool bVertical, SalGraphics* pGraphics ) 52 { 53 sal_Int32 nWidth = 0; 54 FontData& rFontData( getFont( pFont, bVertical ) ); 55 if( rFontData.m_nWidths.empty() ) 56 { 57 pGraphics->GetGlyphWidths( pFont, bVertical, rFontData.m_nWidths, rFontData.m_aGlyphIdToIndex ); 58 } 59 if( ! rFontData.m_nWidths.empty() ) 60 { 61 sal_GlyphId nIndex = nGlyph; 62 if( (nGlyph & GF_ISCHAR) != 0 ) 63 { 64 const sal_Ucs cCode = static_cast<sal_Ucs>(nGlyph & GF_IDXMASK); 65 Ucs2UIntMap::const_iterator it = rFontData.m_aGlyphIdToIndex.find( cCode ); 66 67 // allow symbol aliasing U+00xx -> U+F0xx if there is no direct match 68 if( it == rFontData.m_aGlyphIdToIndex.end() 69 && pFont->IsSymbolFont() 70 && (cCode < 0x0100) ) 71 it = rFontData.m_aGlyphIdToIndex.find( cCode+0xF000 ); 72 73 nIndex = (it != rFontData.m_aGlyphIdToIndex.end()) ? it->second : 0; 74 } 75 nIndex &= GF_IDXMASK; 76 if( nIndex < rFontData.m_nWidths.size() ) 77 nWidth = rFontData.m_nWidths[ nIndex ]; 78 } 79 return nWidth; 80 } 81 82