From e97a6da57804aa14907dec327fbae71bff9b383e Mon Sep 17 00:00:00 2001
From: jowenn <jowenn>
Date: Sun, 10 Nov 2002 21:08:01 +0000
Subject: import of tiny kate. (saving not possible yet)

---
(limited to 'noncore/apps/tinykate/libkate/document/katebuffer.h')

diff --git a/noncore/apps/tinykate/libkate/document/katebuffer.h b/noncore/apps/tinykate/libkate/document/katebuffer.h
new file mode 100644
index 0000000..9088498
--- a/dev/null
+++ b/noncore/apps/tinykate/libkate/document/katebuffer.h
@@ -0,0 +1,143 @@
+/*
+   This file is part of KWrite
+   Copyright (c) 2000 Waldo Bastian <bastian@kde.org>
+   Copyright (c) 2002 Joseph Wenninger <jowenn@kde.org>
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License version 2 as published by the Free Software Foundation.
+   
+   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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.
+*/
+
+#ifndef _KWBUFFER_H_
+#define _KWBUFFER_H_
+
+#include <qstring.h>
+#include <qstringlist.h>
+#include <qlist.h>
+#include <qobject.h>
+#include <qtimer.h>
+
+#include "katetextline.h"
+
+class QTextCodec;
+
+/**
+ * The KWBuffer class maintains a collections of lines.
+ * It allows to maintain state information in a lazy way. 
+ * It handles swapping out of data using secondary storage.
+ *
+ * It is designed to handle large amounts of text-data efficiently
+ * with respect to CPU and memory usage.
+ *
+ * @author Waldo Bastian <bastian@kde.org>
+ */
+class KWBuffer : public QObject
+{
+   Q_OBJECT
+public:
+   /**
+    * Create an empty buffer.
+    */
+   KWBuffer();
+
+   /**
+    * Insert a file at line @p line in the buffer.
+    * Using @p codec to decode the file.
+    */
+   void insertFile(int line, const QString &file, QTextCodec *codec);
+
+   /**
+    * Insert a block of data at line @p line in the buffer.
+    * Using @p codec to decode the file.
+    */
+   void insertData(int line, const QByteArray &data, QTextCodec *codec);
+
+   /**
+    * Return the total number of lines in the buffer.
+    */
+   int count();
+
+   /**
+    * Return line @p i
+    */
+   TextLine::Ptr line(int i);
+
+   /**
+    * Insert @p line in front of line @p i
+    */
+   void insertLine(int i, TextLine::Ptr line);
+
+   /**
+    * Remove line @p i
+    */
+   void removeLine(int i);
+
+   /**
+    * Change line @p i
+    */
+   void changeLine(int i);
+
+   /**
+    * Clear the buffer.
+    */
+   void clear();
+
+signals:
+
+   void textChanged();
+   /**
+    * Emitted during loading.
+    */
+   void linesChanged(int lines);
+   void needHighlight(long,long);
+
+protected:
+   /**
+    * Make sure @p buf gets loaded.
+    */
+   void loadBlock(KWBufBlock *buf);
+
+   /**
+    * Make sure @p buf gets parsed.
+    */
+   void parseBlock(KWBufBlock *buf);
+
+   /**
+    * Mark @p buf dirty.
+    */
+   void dirtyBlock(KWBufBlock *buf);
+   
+   /**
+    * Find the block containing line @p i
+    */
+   KWBufBlock *findBlock(int i);
+
+   /**
+    * Load a part of the file that is currently loading.
+    */
+   void loadFilePart();
+   
+protected slots:
+   void slotLoadFile();
+   
+protected:
+   TextLine::List m_stringList;
+   TextLine::List::Iterator m_stringListIt;
+   int m_stringListCurrent;
+   int m_lineCount;
+   void seek(int i);
+   
+
+};
+
+#endif
--
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