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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commitce4a32fe52ef09d8f5ff1dd22c001110902b60a2 (patch)
tree5ac38a06f3dde268dc7927dc155896926aaf7012 /khtml/rendering/bidi.h
downloadtdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.tar.gz
tdelibs-ce4a32fe52ef09d8f5ff1dd22c001110902b60a2.zip
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
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+/*
+ * This file is part of the html renderer for KDE.
+ *
+ * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
+ * Copyright (C) 2003 Apple Computer, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+#ifndef BIDI_H
+#define BIDI_H
+
+#include <qstring.h>
+
+namespace khtml {
+ class RenderArena;
+ class RenderBlock;
+ class RenderObject;
+ class InlineBox;
+
+ class BidiContext {
+ public:
+ BidiContext(unsigned char level, QChar::Direction embedding, BidiContext *parent = 0, bool override = false);
+ ~BidiContext();
+
+ void ref() const;
+ void deref() const;
+
+ unsigned char level;
+ bool override : 1;
+ QChar::Direction dir : 5;
+ QChar::Direction basicDir : 5;
+
+ BidiContext *parent;
+
+
+ // refcounting....
+ mutable int count;
+ };
+
+ struct BidiRun {
+ BidiRun(int _start, int _stop, RenderObject *_obj, BidiContext *context, QChar::Direction dir)
+ : start( _start ), stop( _stop ), obj( _obj ), box(0), nextRun(0)
+ {
+ if(dir == QChar::DirON) dir = context->dir;
+
+ level = context->level;
+
+ // add level of run (cases I1 & I2)
+ if( level % 2 ) {
+ if(dir == QChar::DirL || dir == QChar::DirAN || dir == QChar::DirEN)
+ level++;
+ } else {
+ if( dir == QChar::DirR )
+ level++;
+ else if( dir == QChar::DirAN || dir == QChar::DirEN)
+ level += 2;
+ }
+ }
+
+ void detach(RenderArena* renderArena);
+
+ // Overloaded new operator.
+ void* operator new(size_t sz, RenderArena* renderArena) throw();
+
+ // Overridden to prevent the normal delete from being called.
+ void operator delete(void* ptr, size_t sz);
+
+private:
+ // The normal operator new is disallowed.
+ void* operator new(size_t sz) throw();
+
+public:
+ int start;
+ int stop;
+
+ RenderObject *obj;
+ InlineBox* box;
+
+ // explicit + implicit levels here
+ uchar level;
+
+ bool compact : 1;
+
+ BidiRun* nextRun;
+ };
+
+ struct BidiIterator;
+ struct BidiState;
+
+}
+
+#endif