summaryrefslogtreecommitdiffstats
path: root/src/codecs/qfonttwcodec.cpp
blob: 1ffa1610e4717fd0e1316602cecefc1c6e4056f8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/****************************************************************************
**
** Taiwan Font utilities for X11
**
** Created : 20010130
**
** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
**
** This file is part of the tools module of the Qt 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 Qt 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 sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.QPL
** included in the packaging of this file.  Licensees holding valid Qt
** Commercial licenses may use this file in accordance with the Qt
** 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.
**
**********************************************************************/

#include "private/qfontcodecs_p.h"

#ifndef QT_NO_CODECS
#ifndef QT_NO_BIG_CODECS

extern int qt_UnicodeToBig5hkscs(uint wc, uchar *r);


int QFontBig5Codec::heuristicContentMatch(const char *, int) const
{
    return 0;
}


int QFontBig5Codec::heuristicNameMatch(const char* hint) const
{
    //tqDebug("QFontBig5Codec::heuristicNameMatch(const char* hint = \"%s\")", hint);
    return ( tqstricmp(hint, "big5-0") == 0 ||
	     tqstricmp(hint, "big5.eten-0") == 0 )
	? 13 : 0;
}


QFontBig5Codec::QFontBig5Codec()
{
    //tqDebug("QFontBig5Codec::QFontBig5Codec()");
}


const char* QFontBig5Codec::name() const
{
    //tqDebug("QFontBig5Codec::name() = \"big5-0\"");
    return "big5-0";
}


int QFontBig5Codec::mibEnum() const
{
    //tqDebug("QFontBig5Codec::mibEnum() = -2026");
    return -2026;
}


QString QFontBig5Codec::toUnicode(const char* /*chars*/, int /*len*/) const
{
    return QString::null;
}

unsigned short QFontBig5Codec::characterFromUnicode(const QString &str, int pos) const
{
    uchar c[2];
    if (qt_UnicodeToBig5hkscs((str.unicode() + pos)->unicode(), c) == 2 &&
        c[0] >= 0xa1 && c[0] <= 0xf9 )
        return (c[0] << 8) + c[1];
    return 0;
}

QCString QFontBig5Codec::fromUnicode(const QString& uc, int& lenInOut ) const
{
    //tqDebug("QFontBig5Codec::fromUnicode(const QString& uc, int& lenInOut = %d)", lenInOut);
    QCString result(lenInOut * 2 + 1);
    uchar *rdata = (uchar *) result.data();
    const QChar *ucp = uc.unicode();

    for ( int i = 0; i < lenInOut; i++ ) {
	QChar ch(*ucp++);
	uchar c[2];

#if 0
	if ( ch.row() == 0) {
	    if ( ch.cell() == ' ' )
		ch = QChar( 0x3000 );
	    else if ( ch.cell() > ' ' && ch.cell() < 127 )
		ch = QChar( ch.cell()-' ', 255 );
	}
#endif
	if ( qt_UnicodeToBig5hkscs( ch.unicode(), c ) == 2 &&
	     c[0] >= 0xa1 && c[0] <= 0xf9 ) {
	    *rdata++ = c[0];
	    *rdata++ = c[1];
	} else {
	    //white square
	    *rdata++ = 0xa1;
	    *rdata++ = 0xbc;
	}
    }
    lenInOut *=2;
    return result;
}

/*! \internal */
void QFontBig5Codec::fromUnicode(const QChar *in, unsigned short *out, int length) const
{
    uchar c[2];
    while (length--) {
	if ( in->row() == 0x00 && in->cell() < 0x80 ) {
	    // ASCII
	    *out = in->cell();
	} else if ( qt_UnicodeToBig5hkscs( in->unicode(), c ) == 2
		    && c[0] >= 0xa1 && c[0] <= 0xf9 ) {
	    // Big5-ETen
	    *out = (c[0] << 8) | c[1];
	} else {
	    // Unknown char
	    *out = 0;
	}

	++in;
	++out;
    }
}

bool QFontBig5Codec::canEncode( QChar ch ) const
{
    //tqDebug("QFontBig5Codec::canEncode( QChar ch = %02X%02X )", ch.row(), ch.cell());
    uchar c[2];
    return ( qt_UnicodeToBig5hkscs( ch.unicode(), c ) == 2 &&
	 c[0] >= 0xa1 && c[0] <= 0xf9 );
}

#endif // QT_NO_BIG_CODECS
#endif // QT_NO_CODECS