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1 | /**************************************************************************** | ||
2 | ** $Id$ | ||
3 | ** | ||
4 | ** Internal header file. | ||
5 | ** | ||
6 | ** Created : | ||
7 | ** | ||
8 | ** Copyright (C) 2001 Trolltech AS. All rights reserved. | ||
9 | ** | ||
10 | ** This file is part of the kernel module of the Qt GUI Toolkit. | ||
11 | ** | ||
12 | ** This file may be distributed under the terms of the Q Public License | ||
13 | ** as defined by Trolltech AS of Norway and appearing in the file | ||
14 | ** LICENSE.QPL included in the packaging of this file. | ||
15 | ** | ||
16 | ** This file may be distributed and/or modified under the terms of the | ||
17 | ** GNU General Public License version 2 as published by the Free Software | ||
18 | ** Foundation and appearing in the file LICENSE.GPL included in the | ||
19 | ** packaging of this file. | ||
20 | ** | ||
21 | ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition | ||
22 | ** licenses may use this file in accordance with the Qt Commercial License | ||
23 | ** Agreement provided with the Software. | ||
24 | ** | ||
25 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE | ||
26 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | ||
27 | ** | ||
28 | ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for | ||
29 | ** information about Qt Commercial License Agreements. | ||
30 | ** See http://www.trolltech.com/qpl/ for QPL licensing information. | ||
31 | ** See http://www.trolltech.com/gpl/ for GPL licensing information. | ||
32 | ** | ||
33 | ** Contact info@trolltech.com if any conditions of this licensing are | ||
34 | ** not clear to you. | ||
35 | ** | ||
36 | **********************************************************************/ | ||
37 | |||
38 | #ifndef QCOMPLEXTEXT_H | ||
39 | #define QCOMPLEXTEXT_H | ||
40 | |||
41 | // | ||
42 | // W A R N I N G | ||
43 | // ------------- | ||
44 | // | ||
45 | // This file is not part of the Qt API. It exists for the convenience | ||
46 | // of Qt Remote Control. This header file may change from version to | ||
47 | // version without notice, or even be removed. | ||
48 | // | ||
49 | // We mean it. | ||
50 | // | ||
51 | // | ||
52 | |||
53 | #ifndef QT_H | ||
54 | #include "qt3namespace.h" | ||
55 | #include <qstring.h> | ||
56 | #include <qpointarray.h> | ||
57 | #include <qfont.h> | ||
58 | #include <qpainter.h> | ||
59 | #include <qlist.h> | ||
60 | #include <qshared.h> | ||
61 | #endif // QT_H | ||
62 | |||
63 | class QFontPrivate; | ||
64 | |||
65 | namespace Qt3 { | ||
66 | |||
67 | // bidi helper classes. Internal to Qt | ||
68 | struct Q_EXPORT QBidiStatus { | ||
69 | QBidiStatus() { | ||
70 | eor = QChar::DirON; | ||
71 | lastStrong = QChar::DirON; | ||
72 | last = QChar:: DirON; | ||
73 | } | ||
74 | QChar::Direction eor; | ||
75 | QChar::Direction lastStrong; | ||
76 | QChar::Direction last; | ||
77 | }; | ||
78 | |||
79 | struct Q_EXPORT QBidiContext : public QShared { | ||
80 | // ### ref and deref parent? | ||
81 | QBidiContext( uchar level, QChar::Direction embedding, QBidiContext *parent = 0, bool override = FALSE ); | ||
82 | ~QBidiContext(); | ||
83 | |||
84 | unsigned char level; | ||
85 | bool override : 1; | ||
86 | QChar::Direction dir : 5; | ||
87 | |||
88 | QBidiContext *parent; | ||
89 | }; | ||
90 | |||
91 | struct Q_EXPORT QBidiControl { | ||
92 | QBidiControl() { context = 0; } | ||
93 | QBidiControl( QBidiContext *c, QBidiStatus s) | ||
94 | { context = c; if( context ) context->ref(); status = s; } | ||
95 | ~QBidiControl() { if ( context && context->deref() ) delete context; } | ||
96 | void setContext( QBidiContext *c ) { if ( context == c ) return; if ( context && context->deref() ) delete context; context = c; context->ref(); } | ||
97 | QBidiContext *context; | ||
98 | QBidiStatus status; | ||
99 | }; | ||
100 | |||
101 | struct Q_EXPORT QTextRun { | ||
102 | QTextRun(int _start, int _stop, QBidiContext *context, QChar::Direction dir); | ||
103 | |||
104 | int start; | ||
105 | int stop; | ||
106 | // explicit + implicit levels here | ||
107 | uchar level; | ||
108 | }; | ||
109 | |||
110 | class Q_EXPORT QComplexText { | ||
111 | public: | ||
112 | enum Shape { | ||
113 | XIsolated, | ||
114 | XFinal, | ||
115 | XInitial, | ||
116 | XMedial | ||
117 | }; | ||
118 | static Shape glyphVariant( const QString &str, int pos); | ||
119 | static Shape glyphVariantLogical( const QString &str, int pos); | ||
120 | |||
121 | static QChar shapedCharacter(const QString &str, int pos, const QFontMetrics *fm = 0); | ||
122 | |||
123 | // positions non spacing marks relative to the base character at position pos. | ||
124 | static QPointArray positionMarks( QFontPrivate *f, const QString &str, int pos, QRect *boundingRect = 0 ); | ||
125 | |||
126 | static QPtrList<QTextRun> *bidiReorderLine( QBidiControl *control, const QString &str, int start, int len, | ||
127 | QChar::Direction basicDir = QChar::DirON ); | ||
128 | static QString bidiReorderString( const QString &str, QChar::Direction basicDir = QChar::DirON ); | ||
129 | }; | ||
130 | |||
131 | } // namespace Qt3 | ||
132 | |||
133 | #endif | ||