You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
132 lines
4.2 KiB
132 lines
4.2 KiB
/****************************************************************************
|
|
** $Id: KoComplexText.h 484817 2005-12-02 00:53:59Z dfaure $
|
|
**
|
|
** Internal header file.
|
|
**
|
|
** Created :
|
|
**
|
|
** Copyright (C) 2001 Trolltech AS. All rights reserved.
|
|
**
|
|
** This file is part of the kernel module of the TQt GUI Toolkit.
|
|
**
|
|
** This file may be distributed under the terms of the Q Public License
|
|
** as defined by Trolltech AS of Norway and appearing in the file
|
|
** LICENSE.TQPL included in the packaging of this file.
|
|
**
|
|
** This file may be distributed and/or modified under the terms of the
|
|
** GNU General Public License version 2 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.GPL included in the
|
|
** packaging of this file.
|
|
**
|
|
** Licensees holding valid TQt Enterprise Edition or TQt Professional Edition
|
|
** 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
|
|
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
**
|
|
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
|
|
** information about TQt Commercial License Agreements.
|
|
** See http://www.trolltech.com/qpl/ for TQPL licensing information.
|
|
** See http://www.trolltech.com/gpl/ for GPL licensing information.
|
|
**
|
|
** Contact info@trolltech.com if any conditions of this licensing are
|
|
** not clear to you.
|
|
**
|
|
**********************************************************************/
|
|
|
|
#ifndef TQCOMPLEXTEXT_H
|
|
#define TQCOMPLEXTEXT_H
|
|
|
|
//
|
|
// W A R N I N G
|
|
// -------------
|
|
//
|
|
// This file is not part of the TQt API. It exists for the convenience
|
|
// of TQt Remote Control. This header file may change from version to
|
|
// version without notice, or even be removed.
|
|
//
|
|
// We mean it.
|
|
//
|
|
//
|
|
|
|
#ifndef TQT_H
|
|
#include <tqstring.h>
|
|
#include <tqpointarray.h>
|
|
#include <tqfont.h>
|
|
#include <tqpainter.h>
|
|
#include <tqptrlist.h>
|
|
#include <tqshared.h>
|
|
#endif // TQT_H
|
|
|
|
#ifndef TQT_NO_COMPLEXTEXT
|
|
|
|
// bidi helper classes. Internal to TQt
|
|
struct TQ_EXPORT KoBiditqStatus {
|
|
KoBiditqStatus() {
|
|
eor = TQChar::DirON;
|
|
lastStrong = TQChar::DirON;
|
|
last = TQChar:: DirON;
|
|
}
|
|
TQChar::Direction eor;
|
|
TQChar::Direction lastStrong;
|
|
TQChar::Direction last;
|
|
};
|
|
|
|
struct TQ_EXPORT KoBidiContext : public TQShared {
|
|
// ### ref and deref tqparent?
|
|
KoBidiContext( uchar level, TQChar::Direction embedding, KoBidiContext *tqparent = 0, bool override = FALSE );
|
|
~KoBidiContext();
|
|
|
|
unsigned char level;
|
|
bool override : 1;
|
|
TQChar::Direction dir : 5;
|
|
|
|
KoBidiContext *tqparent;
|
|
};
|
|
|
|
struct TQ_EXPORT KoBidiControl {
|
|
KoBidiControl() { context = 0; }
|
|
KoBidiControl( KoBidiContext *c, KoBiditqStatus s)
|
|
{ context = c; if( context ) context->ref(); status = s; }
|
|
~KoBidiControl() { if ( context && context->deref() ) delete context; }
|
|
void setContext( KoBidiContext *c ) { if ( context == c ) return; if ( context && context->deref() ) delete context; context = c; context->ref(); }
|
|
KoBidiContext *context;
|
|
KoBiditqStatus status;
|
|
};
|
|
|
|
struct TQ_EXPORT KoTextRun {
|
|
KoTextRun(int _start, int _stop, KoBidiContext *context, TQChar::Direction dir);
|
|
|
|
int start;
|
|
int stop;
|
|
// explicit + implicit levels here
|
|
uchar level;
|
|
};
|
|
|
|
class TQ_EXPORT KoComplexText {
|
|
public:
|
|
enum Shape {
|
|
XIsolated,
|
|
XFinal,
|
|
XInitial,
|
|
XMedial
|
|
};
|
|
static Shape glyphVariant( const TQString &str, int pos);
|
|
static Shape glyphVariantLogical( const TQString &str, int pos);
|
|
|
|
static TQString tqshapedString( const TQString &str, int from = 0, int len = -1, TQPainter::TextDirection dir = TQPainter::Auto, const TQFontMetrics *fm = 0);
|
|
static TQChar tqshapedCharacter(const TQString &str, int pos, const TQFontMetrics *fm = 0);
|
|
|
|
// positions non spacing marks relative to the base character at position pos.
|
|
//static TQPointArray positionMarks( TQFontPrivate *f, const TQString &str, int pos, TQRect *boundingRect = 0 );
|
|
|
|
static TQPtrList<KoTextRun> *bidiReorderLine( KoBidiControl *control, const TQString &str, int start, int len,
|
|
TQChar::Direction basicDir = TQChar::DirON );
|
|
static TQString bidiReorderString( const TQString &str, TQChar::Direction basicDir = TQChar::DirON );
|
|
};
|
|
|
|
#endif //TQT_NO_COMPLEXTEXT
|
|
|
|
#endif
|