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Diffstat (limited to 'client/browser/qtermwidget/src/History.h')
| -rw-r--r-- | client/browser/qtermwidget/src/History.h | 344 |
1 files changed, 0 insertions, 344 deletions
diff --git a/client/browser/qtermwidget/src/History.h b/client/browser/qtermwidget/src/History.h deleted file mode 100644 index a26a367d..00000000 --- a/client/browser/qtermwidget/src/History.h +++ /dev/null @@ -1,344 +0,0 @@ -/* - This file is part of Konsole, an X terminal. - Copyright (C) 1997,1998 by Lars Doelle <lars.doelle@on-line.de> - - Rewritten for QT4 by e_k <e_k at users.sourceforge.net>, Copyright (C)2008 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program 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 General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - 02110-1301 USA. -*/ - -#ifndef TEHISTORY_H -#define TEHISTORY_H - -// Qt -#include <QtCore/QBitRef> -#include <QtCore/QHash> -#include <QtCore> - -// Konsole -#include "BlockArray.h" -#include "Character.h" - -namespace Konsole -{ - -#if 1 -/* - An extendable tmpfile(1) based buffer. -*/ - -class HistoryFile -{ -public: - HistoryFile(); - virtual ~HistoryFile(); - - virtual void add(const unsigned char* bytes, int len); - virtual void get(unsigned char* bytes, int len, int loc); - virtual int len(); - - //mmaps the file in read-only mode - void map(); - //un-mmaps the file - void unmap(); - //returns true if the file is mmap'ed - bool isMapped(); - - -private: - int ion; - int length; - QTemporaryFile tmpFile; - - //pointer to start of mmap'ed file data, or 0 if the file is not mmap'ed - char* fileMap; - - //incremented whenver 'add' is called and decremented whenever - //'get' is called. - //this is used to detect when a large number of lines are being read and processed from the history - //and automatically mmap the file for better performance (saves the overhead of many lseek-read calls). - int readWriteBalance; - - //when readWriteBalance goes below this threshold, the file will be mmap'ed automatically - static const int MAP_THRESHOLD = -1000; -}; -#endif - -////////////////////////////////////////////////////////////////////// - -////////////////////////////////////////////////////////////////////// -// Abstract base class for file and buffer versions -////////////////////////////////////////////////////////////////////// -class HistoryType; - -class HistoryScroll -{ -public: - HistoryScroll(HistoryType*); - virtual ~HistoryScroll(); - - virtual bool hasScroll(); - - // access to history - virtual int getLines() = 0; - virtual int getLineLen(int lineno) = 0; - virtual void getCells(int lineno, int colno, int count, Character res[]) = 0; - virtual bool isWrappedLine(int lineno) = 0; - - // backward compatibility (obsolete) - Character getCell(int lineno, int colno) { Character res; getCells(lineno,colno,1,&res); return res; } - - // adding lines. - virtual void addCells(const Character a[], int count) = 0; - // convenience method - this is virtual so that subclasses can take advantage - // of QVector's implicit copying - virtual void addCellsVector(const QVector<Character>& cells) - { - addCells(cells.data(),cells.size()); - } - - virtual void addLine(bool previousWrapped=false) = 0; - - // - // FIXME: Passing around constant references to HistoryType instances - // is very unsafe, because those references will no longer - // be valid if the history scroll is deleted. - // - const HistoryType& getType() { return *m_histType; } - -protected: - HistoryType* m_histType; - -}; - -#if 1 - -////////////////////////////////////////////////////////////////////// -// File-based history (e.g. file log, no limitation in length) -////////////////////////////////////////////////////////////////////// - -class HistoryScrollFile : public HistoryScroll -{ -public: - HistoryScrollFile(const QString &logFileName); - virtual ~HistoryScrollFile(); - - virtual int getLines(); - virtual int getLineLen(int lineno); - virtual void getCells(int lineno, int colno, int count, Character res[]); - virtual bool isWrappedLine(int lineno); - - virtual void addCells(const Character a[], int count); - virtual void addLine(bool previousWrapped=false); - -private: - int startOfLine(int lineno); - - QString m_logFileName; - HistoryFile index; // lines Row(int) - HistoryFile cells; // text Row(Character) - HistoryFile lineflags; // flags Row(unsigned char) -}; - - -////////////////////////////////////////////////////////////////////// -// Buffer-based history (limited to a fixed nb of lines) -////////////////////////////////////////////////////////////////////// -class HistoryScrollBuffer : public HistoryScroll -{ -public: - typedef QVector<Character> HistoryLine; - - HistoryScrollBuffer(unsigned int maxNbLines = 1000); - virtual ~HistoryScrollBuffer(); - - virtual int getLines(); - virtual int getLineLen(int lineno); - virtual void getCells(int lineno, int colno, int count, Character res[]); - virtual bool isWrappedLine(int lineno); - - virtual void addCells(const Character a[], int count); - virtual void addCellsVector(const QVector<Character>& cells); - virtual void addLine(bool previousWrapped=false); - - void setMaxNbLines(unsigned int nbLines); - unsigned int maxNbLines() { return _maxLineCount; } - - -private: - int bufferIndex(int lineNumber); - - HistoryLine* _historyBuffer; - QBitArray _wrappedLine; - int _maxLineCount; - int _usedLines; - int _head; - - //QVector<histline*> m_histBuffer; - //QBitArray m_wrappedLine; - //unsigned int m_maxNbLines; - //unsigned int m_nbLines; - //unsigned int m_arrayIndex; - //bool m_buffFilled; -}; - -/*class HistoryScrollBufferV2 : public HistoryScroll -{ -public: - virtual int getLines(); - virtual int getLineLen(int lineno); - virtual void getCells(int lineno, int colno, int count, Character res[]); - virtual bool isWrappedLine(int lineno); - - virtual void addCells(const Character a[], int count); - virtual void addCells(const QVector<Character>& cells); - virtual void addLine(bool previousWrapped=false); - -};*/ - -#endif - -////////////////////////////////////////////////////////////////////// -// Nothing-based history (no history :-) -////////////////////////////////////////////////////////////////////// -class HistoryScrollNone : public HistoryScroll -{ -public: - HistoryScrollNone(); - virtual ~HistoryScrollNone(); - - virtual bool hasScroll(); - - virtual int getLines(); - virtual int getLineLen(int lineno); - virtual void getCells(int lineno, int colno, int count, Character res[]); - virtual bool isWrappedLine(int lineno); - - virtual void addCells(const Character a[], int count); - virtual void addLine(bool previousWrapped=false); -}; - -////////////////////////////////////////////////////////////////////// -// BlockArray-based history -////////////////////////////////////////////////////////////////////// -class HistoryScrollBlockArray : public HistoryScroll -{ -public: - HistoryScrollBlockArray(size_t size); - virtual ~HistoryScrollBlockArray(); - - virtual int getLines(); - virtual int getLineLen(int lineno); - virtual void getCells(int lineno, int colno, int count, Character res[]); - virtual bool isWrappedLine(int lineno); - - virtual void addCells(const Character a[], int count); - virtual void addLine(bool previousWrapped=false); - -protected: - BlockArray m_blockArray; - QHash<int,size_t> m_lineLengths; -}; - -////////////////////////////////////////////////////////////////////// -// History type -////////////////////////////////////////////////////////////////////// - -class HistoryType -{ -public: - HistoryType(); - virtual ~HistoryType(); - - /** - * Returns true if the history is enabled ( can store lines of output ) - * or false otherwise. - */ - virtual bool isEnabled() const = 0; - /** - * Returns true if the history size is unlimited. - */ - bool isUnlimited() const { return maximumLineCount() == 0; } - /** - * Returns the maximum number of lines which this history type - * can store or 0 if the history can store an unlimited number of lines. - */ - virtual int maximumLineCount() const = 0; - - virtual HistoryScroll* scroll(HistoryScroll *) const = 0; -}; - -class HistoryTypeNone : public HistoryType -{ -public: - HistoryTypeNone(); - - virtual bool isEnabled() const; - virtual int maximumLineCount() const; - - virtual HistoryScroll* scroll(HistoryScroll *) const; -}; - -class HistoryTypeBlockArray : public HistoryType -{ -public: - HistoryTypeBlockArray(size_t size); - - virtual bool isEnabled() const; - virtual int maximumLineCount() const; - - virtual HistoryScroll* scroll(HistoryScroll *) const; - -protected: - size_t m_size; -}; - -#if 1 -class HistoryTypeFile : public HistoryType -{ -public: - HistoryTypeFile(const QString& fileName=QString()); - - virtual bool isEnabled() const; - virtual const QString& getFileName() const; - virtual int maximumLineCount() const; - - virtual HistoryScroll* scroll(HistoryScroll *) const; - -protected: - QString m_fileName; -}; - - -class HistoryTypeBuffer : public HistoryType -{ -public: - HistoryTypeBuffer(unsigned int nbLines); - - virtual bool isEnabled() const; - virtual int maximumLineCount() const; - - virtual HistoryScroll* scroll(HistoryScroll *) const; - -protected: - unsigned int m_nbLines; -}; - -#endif - -} - -#endif // TEHISTORY_H |