vcl/source/font/fontinstance.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include "svdata.hxx"
  22 #include "fontinstance.hxx"
  23
  24 // extend std namespace to add custom hash needed for LogicalFontInstance
  25
  26 namespace std
  27 {
  28     template <> struct hash< pair< sal_UCS4, FontWeight > >
  29     {
  30         size_t operator()(const pair< sal_UCS4, FontWeight >& rData) const
  31         {
  32             size_t h1 = hash<sal_UCS4>()(rData.first);
  33             size_t h2 = hash<int>()(rData.second);
  34             return h1 ^ h2;
  35         }
  36     };
  37 }
  38
  39
  40 LogicalFontInstance::LogicalFontInstance( const FontSelectPattern& rFontSelData )
  41     : mpFontCache(nullptr)
  42     , maFontSelData( rFontSelData )
  43     , mxFontMetric( new ImplFontMetricData( rFontSelData ))
  44     , mpConversion( nullptr )
  45     , mnLineHeight( 0 )
  46     , mnRefCount( 1 )
  47     , mnOwnOrientation( 0 )
  48     , mnOrientation( 0 )
  49     , mbInit( false )
  50     , mpUnicodeFallbackList( nullptr )
  51 {
  52     maFontSelData.mpFontInstance = this;
  53 }
  54
  55 LogicalFontInstance::~LogicalFontInstance()
  56 {
  57     delete mpUnicodeFallbackList;
  58     mpFontCache = nullptr;
  59     mxFontMetric = nullptr;
  60 }
  61
  62 void LogicalFontInstance::AddFallbackForUnicode( sal_UCS4 cChar, FontWeight eWeight, const OUString& rFontName )
  63 {
  64     if( !mpUnicodeFallbackList )
  65         mpUnicodeFallbackList = new UnicodeFallbackList;
  66     (*mpUnicodeFallbackList)[ std::pair< sal_UCS4, FontWeight >(cChar,eWeight) ] = rFontName;
  67 }
  68
  69 bool LogicalFontInstance::GetFallbackForUnicode( sal_UCS4 cChar, FontWeight eWeight, OUString* pFontName ) const
  70 {
  71     if( !mpUnicodeFallbackList )
  72         return false;
  73
  74     UnicodeFallbackList::const_iterator it = mpUnicodeFallbackList->find( std::pair< sal_UCS4, FontWeight >(cChar,eWeight) );
  75     if( it == mpUnicodeFallbackList->end() )
  76         return false;
  77
  78     *pFontName = (*it).second;
  79     return true;
  80 }
  81
  82 void LogicalFontInstance::IgnoreFallbackForUnicode( sal_UCS4 cChar, FontWeight eWeight, const OUString& rFontName )
  83 {
  84     UnicodeFallbackList::iterator it = mpUnicodeFallbackList->find( std::pair< sal_UCS4,FontWeight >(cChar,eWeight) );
  85     if( it == mpUnicodeFallbackList->end() )
  86         return;
  87     if( (*it).second == rFontName )
  88         mpUnicodeFallbackList->erase( it );
  89 }
  90
  91
  92 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */