File indexing completed on 2024-09-08 12:16:49
0001 /** 0002 * This file is part of the KHTML renderer for KDE. 0003 * 0004 * Copyright (C) 2006, 2007 Maksim Orlovich (maksim@kde.org) 0005 * 0006 * This library is free software; you can redistribute it and/or 0007 * modify it under the terms of the GNU Library General Public 0008 * License as published by the Free Software Foundation; either 0009 * version 2 of the License, or (at your option) any later version. 0010 * 0011 * This library is distributed in the hope that it will be useful, 0012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 0013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 0014 * Library General Public License for more details. 0015 * 0016 * You should have received a copy of the GNU Library General Public License 0017 * along with this library; see the file COPYING.LIB. If not, write to 0018 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 0019 * Boston, MA 02110-1301, USA. 0020 */ 0021 0022 #ifndef KHTML_MISC_TRANSLATOR_H 0023 #define KHTML_MISC_TRANSLATOR_H 0024 0025 #include <QMap> 0026 0027 //--------------------------------------------------------------------------------------------- 0028 /* This class is used to do remapping between different encodings reasonably compactly. 0029 It stores things as (L,R) tables, but reads left-side from memory as MemL */ 0030 template<typename L, typename R, typename MemL> 0031 class IDTranslator 0032 { 0033 public: 0034 struct Info { 0035 MemL l; 0036 R r; 0037 }; 0038 0039 IDTranslator(const Info *table) 0040 { 0041 for (const Info *cursor = table; cursor->l; ++cursor) { 0042 m_lToR.insert(cursor->l, cursor->r); 0043 m_rToL.insert(cursor->r, cursor->l); 0044 } 0045 } 0046 0047 bool hasLeft(L l) 0048 { 0049 typename QMap<L, R>::iterator i = m_lToR.find(l); 0050 return i != m_lToR.end(); 0051 } 0052 0053 L toLeft(R r) 0054 { 0055 typename QMap<R, L>::iterator i(m_rToL.find(r)); 0056 if (i != m_rToL.end()) { 0057 return *i; 0058 } 0059 return L(); 0060 } 0061 0062 R toRight(L l) 0063 { 0064 typename QMap<L, R>::iterator i = m_lToR.find(l); 0065 if (i != m_lToR.end()) { 0066 return *i; 0067 } 0068 return R(); 0069 } 0070 0071 private: 0072 QMap<L, R> m_lToR; 0073 QMap<R, L> m_rToL; 0074 }; 0075 0076 #define MAKE_TRANSLATOR(name,L,R,MR,table) static IDTranslator<L,R,MR>* s_##name; \ 0077 static IDTranslator<L,R,MR>* name() { if (!s_##name) s_##name = new IDTranslator<L,R,MR>(table); \ 0078 return s_##name; } 0079 0080 #endif