/* This file is part of Konsole, an X terminal. Copyright 2007-2008 by Robert Knight Copyright 1997,1998 by Lars Doelle 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 VT102EMULATION_H #define VT102EMULATION_H // Standard Library #include // Qt #include #include #include // Konsole #include "Emulation.h" #include "Screen.h" #define MODE_AppScreen (MODES_SCREEN+0) // Mode #1 #define MODE_AppCuKeys (MODES_SCREEN+1) // Application cursor keys (DECCKM) #define MODE_AppKeyPad (MODES_SCREEN+2) // #define MODE_Mouse1000 (MODES_SCREEN+3) // Send mouse X,Y position on press and release #define MODE_Mouse1001 (MODES_SCREEN+4) // Use Hilight mouse tracking #define MODE_Mouse1002 (MODES_SCREEN+5) // Use cell motion mouse tracking #define MODE_Mouse1003 (MODES_SCREEN+6) // Use all motion mouse tracking #define MODE_Mouse1005 (MODES_SCREEN+7) // Xterm-style extended coordinates #define MODE_Mouse1006 (MODES_SCREEN+8) // 2nd Xterm-style extended coordinates #define MODE_Mouse1015 (MODES_SCREEN+9) // Urxvt-style extended coordinates #define MODE_Ansi (MODES_SCREEN+10) // Use US Ascii for character sets G0-G3 (DECANM) #define MODE_132Columns (MODES_SCREEN+11) // 80 <-> 132 column mode switch (DECCOLM) #define MODE_Allow132Columns (MODES_SCREEN+12) // Allow DECCOLM mode #define MODE_BracketedPaste (MODES_SCREEN+13) // Xterm-style bracketed paste mode #define MODE_total (MODES_SCREEN+14) namespace Konsole { struct CharCodes { // coding info char charset[4]; // int cu_cs; // actual charset. bool graphic; // Some VT100 tricks bool pound ; // Some VT100 tricks bool sa_graphic; // saved graphic bool sa_pound; // saved pound }; /** * Provides an xterm compatible terminal emulation based on the DEC VT102 terminal. * A full description of this terminal can be found at http://vt100.net/docs/vt102-ug/ * * In addition, various additional xterm escape sequences are supported to provide * features such as mouse input handling. * See http://rtfm.etla.org/xterm/ctlseq.html for a description of xterm's escape * sequences. * */ class Vt102Emulation : public Emulation { Q_OBJECT public: /** Constructs a new emulation */ Vt102Emulation(); ~Vt102Emulation(); // reimplemented from Emulation virtual void clearEntireScreen(); virtual void reset(); virtual char eraseChar() const; public slots: // reimplemented from Emulation virtual void sendString(const char*,int length = -1); virtual void sendText(const QString& text); virtual void sendKeyEvent(QKeyEvent*); virtual void sendMouseEvent(int buttons, int column, int line, int eventType); virtual void focusLost() Q_DECL_OVERRIDE; virtual void focusGained() Q_DECL_OVERRIDE; protected: // reimplemented from Emulation virtual void setMode(int mode); virtual void resetMode(int mode); virtual void receiveChar(int cc); private slots: //causes changeTitle() to be emitted for each (int,QString) pair in pendingTitleUpdates //used to buffer multiple title updates void updateTitle(); private: unsigned short applyCharset(unsigned short c); void setCharset(int n, int cs); void useCharset(int n); void setAndUseCharset(int n, int cs); void saveCursor(); void restoreCursor(); void resetCharset(int scrno); void setMargins(int top, int bottom); //set margins for all screens back to their defaults void setDefaultMargins(); // returns true if 'mode' is set or false otherwise bool getMode (int mode); // saves the current boolean value of 'mode' void saveMode (int mode); // restores the boolean value of 'mode' void restoreMode(int mode); // resets all modes // (except MODE_Allow132Columns) void resetModes(); void resetTokenizer(); #define MAX_TOKEN_LENGTH 80 void addToCurrentToken(int cc); int tokenBuffer[MAX_TOKEN_LENGTH]; //FIXME: overflow? int tokenBufferPos; #define MAXARGS 15 void addDigit(int dig); void addArgument(); int argv[MAXARGS]; int argc; void initTokenizer(); // Set of flags for each of the ASCII characters which indicates // what category they fall into (printable character, control, digit etc.) // for the purposes of decoding terminal output int charClass[256]; void reportDecodingError(); void processToken(int code, int p, int q); void processWindowAttributeChange(); void reportTerminalType(); void reportSecondaryAttributes(); void reportStatus(); void reportAnswerBack(); void reportCursorPosition(); void reportTerminalParms(int p); void onScrollLock(); void scrollLock(const bool lock); // clears the screen and resizes it to the specified // number of columns void clearScreenAndSetColumns(int columnCount); CharCodes _charset[2]; class TerminalState { public: // Initializes all modes to false TerminalState() { memset(&mode,false,MODE_total * sizeof(bool)); } bool mode[MODE_total]; }; TerminalState _currentModes; TerminalState _savedModes; //hash table and timer for buffering calls to the session instance //to update the name of the session //or window title. //these calls occur when certain escape sequences are seen in the //output from the terminal QHash _pendingTitleUpdates; QTimer* _titleUpdateTimer; bool _reportFocusEvents; }; } #endif // VT102EMULATION_H