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/****************************************************************************
**
** ???
**
** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved.
**
** This file is part of the widgets module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the files LICENSE.GPL2
** and LICENSE.GPL3 included in the packaging of this file.
** Alternatively you may (at your option) use any later version
** of the GNU General Public License if such license has been
** publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at [email protected].
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQUNICODETABLES_P_H
#define TQUNICODETABLES_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the TQt API. It exists for the convenience
// of internal files. This header file may change from version to version
// without notice, or even be removed.
//
// We mean it.
//
//
#ifndef QT_H
#include "ntqstring.h"
#endif // QT_H
#ifdef TQT_NO_UNICODETABLES
# include <ctype.h>
#endif
class TQUnicodeTables {
public:
static const TQ_UINT8 unicode_info[];
#ifndef TQT_NO_UNICODETABLES
static const TQ_UINT16 decomposition_map[];
static const TQ_UINT16 decomposition_info[];
static const TQ_UINT16 ligature_map[];
static const TQ_UINT16 ligature_info[];
static const TQ_UINT8 direction_info[];
static const TQ_UINT8 combining_info[];
static const TQ_UINT16 case_info[];
static const TQ_INT8 decimal_info[];
static const TQ_UINT16 symmetricPairs[];
static const int symmetricPairsSize;
static const TQ_UINT8 line_break_info[];
#else
static const TQ_UINT8 latin1_line_break_info[];
#endif
static const unsigned char otherScripts[];
static const unsigned char indicScripts[];
static const unsigned char scriptTable[];
enum { SCRIPTS_INDIC = 0x7e };
// see http://www.unicode.org/reports/tr14/tr14-13.html
// we don't use the XX and AI properties and map them to AL instead.
enum LineBreakClass {
LineBreak_OP, LineBreak_CL, LineBreak_QU, LineBreak_GL, LineBreak_NS,
LineBreak_EX, LineBreak_SY, LineBreak_IS, LineBreak_PR, LineBreak_PO,
LineBreak_NU, LineBreak_AL, LineBreak_ID, LineBreak_IN, LineBreak_HY,
LineBreak_BA, LineBreak_BB, LineBreak_B2, LineBreak_ZW, LineBreak_CM,
LineBreak_SA, LineBreak_BK, LineBreak_CR, LineBreak_LF, LineBreak_SG,
LineBreak_CB, LineBreak_SP
};
};
inline TQChar::Category category( const TQChar &c )
{
#ifdef TQT_NO_UNICODETABLES
if ( c.unicode() > 0xff ) return TQChar::Letter_Uppercase; //########
return (TQChar::Category)TQUnicodeTables::unicode_info[c.unicode()];
#else
int uc = ((int)TQUnicodeTables::unicode_info[c.row()]) << 8;
uc += c.cell();
return (TQChar::Category)TQUnicodeTables::unicode_info[uc];
#endif // TQT_NO_UNICODETABLES
}
inline TQChar lower( const TQChar &c )
{
#ifndef TQT_NO_UNICODETABLES
int row = c.row();
int cell = c.cell();
int ci = TQUnicodeTables::case_info[row];
int uc = ((int)TQUnicodeTables::unicode_info[c.row()]) << 8;
uc += c.cell();
if (TQUnicodeTables::unicode_info[uc] != TQChar::Letter_Uppercase || !ci)
return c;
TQ_UINT16 lower = TQUnicodeTables::case_info[(ci<<8)+cell];
return lower ? TQChar(lower) : c;
#else
if ( c.row() )
return c;
return TQChar( tolower((uchar) c.latin1()) );
#endif
}
inline TQChar upper( const TQChar &c )
{
#ifndef TQT_NO_UNICODETABLES
int row = c.row();
int cell = c.cell();
int ci = TQUnicodeTables::case_info[row];
int uc = ((int)TQUnicodeTables::unicode_info[c.row()]) << 8;
uc += c.cell();
if (TQUnicodeTables::unicode_info[uc] != TQChar::Letter_Lowercase || !ci)
return c;
TQ_UINT16 upper = TQUnicodeTables::case_info[(ci<<8)+cell];
return upper ? TQChar(upper) : c;
#else
if ( c.row() )
return c;
return TQChar( toupper((uchar) c.latin1()) );
#endif
}
inline TQChar::Direction direction( const TQChar &c )
{
#ifndef TQT_NO_UNICODETABLES
int pos = TQUnicodeTables::direction_info[c.row()];
return (TQChar::Direction) (TQUnicodeTables::direction_info[(pos<<8)+c.cell()] & 0x1f);
#else
Q_UNUSED(c);
return TQChar::DirL;
#endif
}
inline bool mirrored( const TQChar &c )
{
#ifndef TQT_NO_UNICODETABLES
int pos = TQUnicodeTables::direction_info[c.row()];
return TQUnicodeTables::direction_info[(pos<<8)+c.cell()] > 128;
#else
Q_UNUSED(c);
return FALSE;
#endif
}
inline TQChar mirroredChar( const TQChar &ch )
{
#ifndef TQT_NO_UNICODETABLES
if(!::mirrored( ch ))
return ch;
int i;
int c = ch.unicode();
for (i = 0; i < TQUnicodeTables::symmetricPairsSize; i ++) {
if (TQUnicodeTables::symmetricPairs[i] == c)
return TQUnicodeTables::symmetricPairs[(i%2) ? (i-1) : (i+1)];
}
#endif
return ch;
}
inline TQChar::Joining joining( const TQChar &ch )
{
#ifndef TQT_NO_UNICODETABLES
int pos = TQUnicodeTables::direction_info[ch.row()];
return (TQChar::Joining) ((TQUnicodeTables::direction_info[(pos<<8)+ch.cell()] >> 5) &0x3);
#else
Q_UNUSED(ch);
return TQChar::OtherJoining;
#endif
}
inline bool isMark( const TQChar &ch )
{
TQChar::Category c = ::category( ch );
return c >= TQChar::Mark_NonSpacing && c <= TQChar::Mark_Enclosing;
}
inline unsigned char combiningClass( const TQChar &ch )
{
#ifndef TQT_NO_UNICODETABLES
const int pos = TQUnicodeTables::combining_info[ch.row()];
return TQUnicodeTables::combining_info[(pos<<8) + ch.cell()];
#else
Q_UNUSED(ch);
return 0;
#endif
}
inline bool isSpace( const TQChar &ch )
{
if( ch.unicode() >= 9 && ch.unicode() <=13 ) return TRUE;
TQChar::Category c = ::category( ch );
return c >= TQChar::Separator_Space && c <= TQChar::Separator_Paragraph;
}
inline int lineBreakClass( const TQChar &ch )
{
#ifdef TQT_NO_UNICODETABLES
return ch.row() ? TQUnicodeTables::LineBreak_AL
: TQUnicodeTables::latin1_line_break_info[ch.cell()];
#else
int pos = ((int)TQUnicodeTables::line_break_info[ch.row()] << 8) + ch.cell();
return TQUnicodeTables::line_break_info[pos];
#endif
}
inline int scriptForChar( ushort uc )
{
unsigned char script = TQUnicodeTables::scriptTable[(uc>>8)];
if ( script >= TQUnicodeTables::SCRIPTS_INDIC ) {
if ( script == TQUnicodeTables::SCRIPTS_INDIC ) {
script = TQUnicodeTables::indicScripts[ (uc-0x0900)>>7 ];
} else {
// 0x80 + SCRIPTS_xx
unsigned char index = script-0x80;
unsigned char cell = uc &0xff;
while( TQUnicodeTables::otherScripts[index++] < cell )
index++;
script = TQUnicodeTables::otherScripts[index];
}
}
return script;
}
#ifdef Q_WS_X11
#define SCRIPT_FOR_CHAR( script, c ) \
do { \
unsigned short _uc = (c).unicode(); \
if ( _uc < 0x100 ) { \
script = TQFont::Latin; \
} else { \
script = (TQFont::Script)scriptForChar( _uc ); \
} \
} while( FALSE )
#else
#define SCRIPT_FOR_CHAR( script, c ) \
script = (TQFont::Script)scriptForChar( (c).unicode() )
#endif
#endif
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