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Diffstat (limited to 'util/AnsiTerm.h')
| -rw-r--r-- | util/AnsiTerm.h | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/util/AnsiTerm.h b/util/AnsiTerm.h new file mode 100644 index 0000000..13d10f2 --- /dev/null +++ b/util/AnsiTerm.h @@ -0,0 +1,316 @@ +/* + * AnsiTerm.h + * Windows ANSI Terminal Emulation + * + * Author: Robert Nelson robertnelson at users.sourceforge.net + * Copyright (c) 2009 Robert Nelson + * + * 10/07/09 Robert Nelson - Created + * See ChangeLog for further changes + */ + +/* +Copyright (c) 2009, Robert Nelson +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + + a.. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + b.. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR +ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES +(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; +LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON +ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +class CAnsiTerm +{ +public: + struct KeyCode + { + unsigned char bKeyDown:1; + unsigned char bEnhanced:1; + unsigned char bCapsLock:1; + unsigned char bScrollLock:1; + unsigned char bNumLock:1; + unsigned char bShift:1; + unsigned char bControl:1; + unsigned char bAlt:1; + unsigned char RepeatCount; + unsigned char VirtualKeyCode; + unsigned char AsciiChar; + }; + +private: + enum ControlCharacters + { + CH_NUL = 0x00, // Ignored on input + CH_ENQ = 0x05, // Transmit answerback + CH_BEL = 0x07, // Ring Bell + CH_BS = 0x08, // Move left one character, no effect in column 0 + CH_HT = 0x09, // Tab + CH_LF = 0x0A, // Line feed or new line depending on line mode + CH_VT = 0x0B, // Vertical tab, same as line feed + CH_FF = 0x0C, // Form feed, same as line feed + CH_CR = 0x0D, // Carriage return, return to column 0 + CH_SO = 0x0E, // Shift Out, Invoke G1 charset + CH_SI = 0x0F, // Shift In, Invoke G0 charset + CH_XON = 0x11, // Resume transmission + CH_XOF = 0x13, // Suspend transmission + CH_CAN = 0x18, // Cancel, aborts the current control sequence + CH_SUB = 0x1A, // Same as Cancel + CH_ESC = 0x1B, // Escape, start of control sequence + CH_DEL = 0x7F // Delete, ignored + }; + + enum DECModes + { + DECCKM = 1, // Cursor Key Mode (set = application codes) + DECANM = 2, // Ansi Mode (set = ansi) + DECCOLM = 3, // 80/132 Column Mode (set = 132) + DECSCLM = 4, // Scroll Mode (set = smooth) + DECSCNM = 5, // Screen Mode (set = black on white) + DECOM = 6, // Origin Mode (set = origin relative to top margin) + DECAWM = 7, // Autowrap Mode (set = wrap) + DECARM = 8, // Autorepeat Mode (set = repeat) + DECINLM = 9, // Interlace Mode (set = interlace) + DECTCEM = 25 // Text Cursor Enable Mode + + }; + + enum DisplayState + { + DS_None, + DS_Normal, + DS_UTF8, + DS_Escape, + DS_CSIParam, + DS_DECPrivate, + DS_SelectG0, + DS_SelectG1 + }; + + enum SelectedCharset + { + CharsetG0, + CharsetG1 + }; + + enum CharacterSet + { + AsciiCharset = 0, + SpecialGraphicsCharset = 1, + UKCharset = 2 + }; + + enum EraseType + { + EraseCursorToEnd = 0, + EraseBeginningToCursor = 1, + EraseAll = 2 + }; + + static const int kMaxParameterCount = 16; + + static const int kOutputBufferSize = 256; + + static const int kMinGraphicsChar = 0x5F; + static const int kMaxGraphicsChar = 0x7E; + + static const int kColorTableSize = 16; + + static const WORD kDefaultAttribute = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE; + + struct CSICode + { + char chCode; + DisplayState dsNextState; + bool (CAnsiTerm::*pfnProcess)(void); + }; + + struct CSIFunction + { + char chCode; + bool (CAnsiTerm::*pfnProcess)(void); + }; + +protected: + typedef struct _CONSOLE_SCREEN_BUFFER_INFOEX { + ULONG cbSize; + COORD dwSize; + COORD dwCursorPosition; + WORD wAttributes; + SMALL_RECT srWindow; + COORD dwMaximumWindowSize; + WORD wPopupAttributes; + BOOL bFullscreenSupported; + COLORREF ColorTable[16]; + } CONSOLE_SCREEN_BUFFER_INFOEX, *PCONSOLE_SCREEN_BUFFER_INFOEX; + + typedef BOOL (WINAPI *PFN_GetConsoleScreenBufferInfoEx)( + HANDLE hConsoleOutput, + PCONSOLE_SCREEN_BUFFER_INFOEX lpConsoleScreenBufferInfoEx); + + typedef BOOL (WINAPI *PFN_SetConsoleScreenBufferInfoEx)( + HANDLE hConsoleOutput, + PCONSOLE_SCREEN_BUFFER_INFOEX lpConsoleScreenBufferInfoEx); + + static PFN_GetConsoleScreenBufferInfoEx s_pfnGetConsoleScreenBufferInfoEx; + static PFN_SetConsoleScreenBufferInfoEx s_pfnSetConsoleScreenBufferInfoEx; + +private: + static CSICode s_CSITable[]; + static CSIFunction s_DECFunction[]; + static CSIFunction s_CSIFunction[]; + static wchar_t s_GraphicChars[kMaxGraphicsChar - kMinGraphicsChar + 1]; + static wchar_t s_OemToUnicode[256]; + static COLORREF s_ColorTable[kColorTableSize]; + + +public: + CAnsiTerm(void); + virtual ~CAnsiTerm(void); + + void WindowSizeChanged(bool bInitial); + + int ProcessInput(KeyCode keyCode, unsigned char *pOutput, int iOutputLen); + + bool ProcessOutput(const unsigned char *szData, int iLength); + +protected: + virtual bool ResetTerm(void); + virtual bool GetCursorPosition(void); + virtual bool SetCursorPosition(void); + virtual bool DisplayCursor(void); + + virtual bool ScrollDisplay(int nLines, bool bWindowOnly); + virtual bool EraseLine(EraseType eType); + virtual bool EraseDisplay(EraseType eType); + virtual bool UpdateTextAttribute(void); + + virtual DWORD OutputText(void); + +private: + bool ProcessBackspace(void); + bool ProcessTab(void); + bool ProcessLinefeed(bool bNewLine); + bool ProcessReverseLinefeed(void); + bool ProcessReturn(void); + + void AddOutputData(wchar_t wchData) + { + m_OutputBuffer[m_dwOutputCount++] = wchData; + + if (m_dwOutputCount >= kOutputBufferSize) + { + OutputText(); + } + } + + void DisplayCSI(char ch); + + bool ProcessSCSG0(char ch); + bool ProcessSCSG1(char ch); + + bool ProcessDECALN(void); + bool ProcessDECDHLB(void); + bool ProcessDECDHLT(void); + bool ProcessDECDWL(void); + bool ProcessDECID(void); + bool ProcessDECKPAM(void); + bool ProcessDECKPNM(void); + bool ProcessDECLL(void); + bool ProcessDECRC(void); + bool ProcessDECREQTPARM(void); + bool ProcessDECSC(void); + bool ProcessDECSTBM(void); + bool ProcessDECSWL(void); + bool ProcessDECTST(void); + + bool ProcessCUB(void); + bool ProcessCUD(void); + bool ProcessCUF(void); + bool ProcessCUP(void); + bool ProcessCUU(void); + bool ProcessDA(void); + bool ProcessDSR(void); + bool ProcessED(void); + bool ProcessEL(void); + bool ProcessHTS(void); + bool ProcessHVP(void); + bool ProcessIND(void); + bool ProcessNEL(void); + bool ProcessRCP(void); + bool ProcessRI(void); + bool ProcessRIS(void); + bool ProcessRM(void); + bool ProcessSCP(void); + bool ProcessSGR(void); + bool ProcessSM(void); + bool ProcessTBC(void); + +private: + HANDLE m_hConsole; + DWORD m_dwOrigConsoleMode; + WORD m_wOrigConsoleAttribute; + DWORD m_dwOrigCursorSize; + COLORREF m_OrigColorTable[kColorTableSize]; + bool m_bResetColorTable; + DisplayState m_State; + + SelectedCharset m_SelectedCharset; + CharacterSet m_G0Charset; + CharacterSet m_G1Charset; + + COORD m_BufferSize; + COORD m_WindowSize; + COORD m_WindowOrigin; + COORD m_Cursor; + COORD m_SavedCursor; + SHORT m_sTopMargin; + SHORT m_sBottomMargin; + WORD m_Attribute; + wchar_t m_OutputBuffer[kOutputBufferSize]; + DWORD m_dwOutputCount; + + unsigned char m_UTF8Buffer[3]; + int m_UTF8Count; + int m_UTF8Size; + + int m_Parameters[kMaxParameterCount]; + int m_ParameterCount; + bool m_bParametersStart; + bool m_bPrivateParameters; + + // Modes + bool m_bLineFeedNewLineMode; // LNM + bool m_bCursorKeyMode; // DECCKM +// Always set - VT52 not supported + bool m_bAnsiMode; // DECANM +// Not used - column width is based on width of console window + bool m_bColumnMode; // DECCOLM +// Not used - always reset + bool m_bScrollingMode; // DECSCLM +// Not implemented - always reset + bool m_bScreenMode; // DECSCNM + bool m_bOriginMode; // DECOM + bool m_bAutoWrapMode; // DECAWM +// Not implemented - always set + bool m_bAutoRepeatingMode; // DECARM +// Not implemented - always reset + bool m_bInterlaceMode; // DECINLM + bool m_bDisplayCursor; // DECTCEM +}; |