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201 lines
6.1 KiB
201 lines
6.1 KiB
/*
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This file is part of Konsole, an X terminal.
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Copyright 2007-2008 by Robert Knight <robertknight@gmail.com>
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Copyright 1997,1998 by Lars Doelle <lars.doelle@on-line.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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*/
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#ifndef VT102EMULATION_H
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#define VT102EMULATION_H
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// Standard Library
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#include <stdio.h>
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// Qt
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#include <QKeyEvent>
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#include <QHash>
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#include <QTimer>
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// Konsole
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#include "Emulation.h"
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#include "Screen.h"
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#define MODE_AppScreen (MODES_SCREEN+0) // Mode #1
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#define MODE_AppCuKeys (MODES_SCREEN+1) // Application cursor keys (DECCKM)
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#define MODE_AppKeyPad (MODES_SCREEN+2) //
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#define MODE_Mouse1000 (MODES_SCREEN+3) // Send mouse X,Y position on press and release
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#define MODE_Mouse1001 (MODES_SCREEN+4) // Use Hilight mouse tracking
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#define MODE_Mouse1002 (MODES_SCREEN+5) // Use cell motion mouse tracking
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#define MODE_Mouse1003 (MODES_SCREEN+6) // Use all motion mouse tracking
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#define MODE_Mouse1005 (MODES_SCREEN+7) // Xterm-style extended coordinates
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#define MODE_Mouse1006 (MODES_SCREEN+8) // 2nd Xterm-style extended coordinates
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#define MODE_Mouse1015 (MODES_SCREEN+9) // Urxvt-style extended coordinates
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#define MODE_Ansi (MODES_SCREEN+10) // Use US Ascii for character sets G0-G3 (DECANM)
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#define MODE_132Columns (MODES_SCREEN+11) // 80 <-> 132 column mode switch (DECCOLM)
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#define MODE_Allow132Columns (MODES_SCREEN+12) // Allow DECCOLM mode
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#define MODE_BracketedPaste (MODES_SCREEN+13) // Xterm-style bracketed paste mode
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#define MODE_total (MODES_SCREEN+14)
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namespace Konsole
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{
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struct CharCodes
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{
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// coding info
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char charset[4]; //
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int cu_cs; // actual charset.
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bool graphic; // Some VT100 tricks
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bool pound ; // Some VT100 tricks
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bool sa_graphic; // saved graphic
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bool sa_pound; // saved pound
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};
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/**
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* Provides an xterm compatible terminal emulation based on the DEC VT102 terminal.
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* A full description of this terminal can be found at http://vt100.net/docs/vt102-ug/
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*
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* In addition, various additional xterm escape sequences are supported to provide
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* features such as mouse input handling.
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* See http://rtfm.etla.org/xterm/ctlseq.html for a description of xterm's escape
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* sequences.
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*
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*/
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class Vt102Emulation : public Emulation
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{
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Q_OBJECT
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public:
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/** Constructs a new emulation */
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Vt102Emulation();
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~Vt102Emulation();
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// reimplemented from Emulation
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virtual void clearEntireScreen();
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virtual void reset();
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virtual char eraseChar() const;
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public slots:
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// reimplemented from Emulation
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virtual void sendString(const char*,int length = -1);
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virtual void sendText(const QString& text);
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virtual void sendKeyEvent(QKeyEvent*);
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virtual void sendMouseEvent(int buttons, int column, int line, int eventType);
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virtual void focusLost();
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virtual void focusGained();
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protected:
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// reimplemented from Emulation
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virtual void setMode(int mode);
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virtual void resetMode(int mode);
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virtual void receiveChar(wchar_t cc);
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private slots:
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//causes changeTitle() to be emitted for each (int,QString) pair in pendingTitleUpdates
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//used to buffer multiple title updates
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void updateTitle();
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private:
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wchar_t applyCharset(wchar_t c);
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void setCharset(int n, int cs);
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void useCharset(int n);
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void setAndUseCharset(int n, int cs);
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void saveCursor();
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void restoreCursor();
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void resetCharset(int scrno);
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void setMargins(int top, int bottom);
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//set margins for all screens back to their defaults
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void setDefaultMargins();
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// returns true if 'mode' is set or false otherwise
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bool getMode (int mode);
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// saves the current boolean value of 'mode'
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void saveMode (int mode);
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// restores the boolean value of 'mode'
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void restoreMode(int mode);
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// resets all modes
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// (except MODE_Allow132Columns)
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void resetModes();
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void resetTokenizer();
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#define MAX_TOKEN_LENGTH 256 // Max length of tokens (e.g. window title)
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void addToCurrentToken(wchar_t cc);
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wchar_t tokenBuffer[MAX_TOKEN_LENGTH]; //FIXME: overflow?
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int tokenBufferPos;
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#define MAXARGS 15
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void addDigit(int dig);
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void addArgument();
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int argv[MAXARGS];
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int argc;
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void initTokenizer();
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// Set of flags for each of the ASCII characters which indicates
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// what category they fall into (printable character, control, digit etc.)
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// for the purposes of decoding terminal output
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int charClass[256];
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void reportDecodingError();
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void processToken(int code, wchar_t p, int q);
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void processWindowAttributeChange();
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void requestWindowAttribute(int);
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void reportTerminalType();
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void reportSecondaryAttributes();
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void reportStatus();
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void reportAnswerBack();
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void reportCursorPosition();
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void reportTerminalParms(int p);
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void onScrollLock();
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void scrollLock(const bool lock);
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// clears the screen and resizes it to the specified
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// number of columns
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void clearScreenAndSetColumns(int columnCount);
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CharCodes _charset[2];
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class TerminalState
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{
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public:
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// Initializes all modes to false
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TerminalState()
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{ memset(&mode,false,MODE_total * sizeof(bool)); }
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bool mode[MODE_total];
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};
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TerminalState _currentModes;
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TerminalState _savedModes;
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//hash table and timer for buffering calls to the session instance
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//to update the name of the session
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//or window title.
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//these calls occur when certain escape sequences are seen in the
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//output from the terminal
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QHash<int,QString> _pendingTitleUpdates;
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QTimer* _titleUpdateTimer;
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bool _reportFocusEvents;
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};
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}
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#endif // VT102EMULATION_H
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