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Kate

katetextlayout.h

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00001 /* This file is part of the KDE libraries
00002    Copyright (C) 2002-2005 Hamish Rodda <rodda@kde.org>
00003    Copyright (C) 2003      Anakim Border <aborder@sources.sourceforge.net>
00004 
00005    This library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Library General Public
00007    License version 2 as published by the Free Software Foundation.
00008 
00009    This library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this library; see the file COPYING.LIB.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017    Boston, MA 02110-1301, USA.
00018 */
00019 
00020 #ifndef _KATE_TEXTLAYOUT_H_
00021 #define _KATE_TEXTLAYOUT_H_
00022 
00023 #include <QtGui/QTextLine>
00024 
00025 #include <ksharedptr.h>
00026 
00027 #include "katecursor.h"
00028 #include "katelinelayout.h"
00029 
00030 
00031 class KateLineLayout;
00032 typedef KSharedPtr<KateLineLayout> KateLineLayoutPtr;
00033 
00039 class KateTextLayout
00040 {
00041   friend class KateLineLayout;
00042   friend class KateLayoutCache;
00043   template <class T> friend class QVector;
00044 
00045   public:
00046     bool isValid() const;
00047     static KateTextLayout invalid();
00048 
00049     int line() const;
00050     int virtualLine() const;
00053     int viewLine() const;
00054 
00055     const QTextLine& lineLayout() const;
00056     KateLineLayoutPtr kateLineLayout() const;
00057 
00058     int startCol() const;
00059     KTextEditor::Cursor start() const;
00060 
00067     int endCol(bool indicateEOL = false) const;
00068 
00075     KTextEditor::Cursor end(bool indicateEOL = false) const;
00076 
00077     int length() const;
00078     bool isEmpty() const;
00079 
00080     bool wrap() const;
00081 
00082     bool isDirty() const;
00083     bool setDirty(bool dirty = true);
00084 
00085     int startX() const;
00086     int endX() const;
00087     int width() const;
00088 
00089     int xOffset() const;
00090 
00091     bool isRightToLeft() const;
00092 
00093     bool includesCursor(const KTextEditor::Cursor& realCursor) const;
00094 
00095     friend bool operator> (const KateLineLayout& r, const KTextEditor::Cursor& c);
00096     friend bool operator>= (const KateLineLayout& r, const KTextEditor::Cursor& c);
00097     friend bool operator< (const KateLineLayout& r, const KTextEditor::Cursor& c);
00098     friend bool operator<= (const KateLineLayout& r, const KTextEditor::Cursor& c);
00099 
00100     void debugOutput() const;
00101 
00102   private:
00103     explicit KateTextLayout(KateLineLayoutPtr line = KateLineLayoutPtr(), int viewLine = 0);
00104 
00105     KateLineLayoutPtr m_lineLayout;
00106     QTextLine m_textLayout;
00107 
00108     int m_viewLine;
00109     mutable int m_startX;
00110     bool m_invalidDirty;
00111 };
00112 
00113 #endif

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