| 1 | /* $Id$ */\r |
| 2 | /***************************************************************\r |
| 3 | ** I/O subsystem for PForth for WIN32 systems.\r |
| 4 | **\r |
| 5 | ** Use Windows Console so we can add the ANSI console commands needed to support HISTORY\r |
| 6 | **\r |
| 7 | ** Author: Phil Burk\r |
| 8 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom\r |
| 9 | **\r |
| 10 | ** The pForth software code is dedicated to the public domain,\r |
| 11 | ** and any third party may reproduce, distribute and modify\r |
| 12 | ** the pForth software code or any derivative works thereof\r |
| 13 | ** without any compensation or license. The pForth software\r |
| 14 | ** code is provided on an "as is" basis without any warranty\r |
| 15 | ** of any kind, including, without limitation, the implied\r |
| 16 | ** warranties of merchantability and fitness for a particular\r |
| 17 | ** purpose and their equivalents under the laws of any jurisdiction.\r |
| 18 | **\r |
| 19 | ***************************************************************/\r |
| 20 | \r |
| 21 | #include "../pf_all.h"\r |
| 22 | \r |
| 23 | #if defined(WIN32) || defined(__NT__)\r |
| 24 | \r |
| 25 | #include <windows.h>\r |
| 26 | \r |
| 27 | #define ASCII_ESCAPE (0x1B)\r |
| 28 | \r |
| 29 | static HANDLE sConsoleHandle = INVALID_HANDLE_VALUE;\r |
| 30 | static int sIsConsoleValid = FALSE;\r |
| 31 | \r |
| 32 | typedef enum ConsoleState_e\r |
| 33 | {\r |
| 34 | SDCONSOLE_STATE_IDLE = 0,\r |
| 35 | SDCONSOLE_STATE_GOT_ESCAPE,\r |
| 36 | SDCONSOLE_STATE_GOT_BRACKET\r |
| 37 | \r |
| 38 | } ConsoleState;\r |
| 39 | \r |
| 40 | static int sConsoleState = SDCONSOLE_STATE_IDLE;\r |
| 41 | static int sParam1 = 0;\r |
| 42 | static CONSOLE_SCREEN_BUFFER_INFO sScreenInfo;\r |
| 43 | \r |
| 44 | /******************************************************************/\r |
| 45 | static void sdConsoleEmit( char c )\r |
| 46 | {\r |
| 47 | /* Write a WCHAR in case we have compiled with Unicode support.\r |
| 48 | * Otherwise we will see '?' printed.*/\r |
| 49 | WCHAR wc = (WCHAR) c;\r |
| 50 | DWORD count;\r |
| 51 | if( sIsConsoleValid )\r |
| 52 | {\r |
| 53 | WriteConsoleW(sConsoleHandle, &wc, 1, &count, NULL );\r |
| 54 | }\r |
| 55 | else\r |
| 56 | {\r |
| 57 | /* This will get called if we are redirecting to a file.*/\r |
| 58 | WriteFile(sConsoleHandle, &c, 1, &count, NULL );\r |
| 59 | }\r |
| 60 | }\r |
| 61 | \r |
| 62 | /******************************************************************/\r |
| 63 | static void sdClearScreen( void )\r |
| 64 | {\r |
| 65 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
| 66 | {\r |
| 67 | COORD XY;\r |
| 68 | int numNeeded;\r |
| 69 | DWORD count;\r |
| 70 | XY.X = 0;\r |
| 71 | XY.Y = sScreenInfo.srWindow.Top;\r |
| 72 | numNeeded = sScreenInfo.dwSize.X * (sScreenInfo.srWindow.Bottom - sScreenInfo.srWindow.Top + 1);\r |
| 73 | FillConsoleOutputCharacter(\r |
| 74 | sConsoleHandle, ' ', numNeeded, XY, &count );\r |
| 75 | SetConsoleCursorPosition( sConsoleHandle, XY );\r |
| 76 | }\r |
| 77 | }\r |
| 78 | \r |
| 79 | /******************************************************************/\r |
| 80 | static void sdEraseEOL( void )\r |
| 81 | {\r |
| 82 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
| 83 | {\r |
| 84 | COORD savedXY;\r |
| 85 | int numNeeded;\r |
| 86 | DWORD count;\r |
| 87 | savedXY.X = sScreenInfo.dwCursorPosition.X;\r |
| 88 | savedXY.Y = sScreenInfo.dwCursorPosition.Y;\r |
| 89 | numNeeded = sScreenInfo.dwSize.X - savedXY.X;\r |
| 90 | FillConsoleOutputCharacter(\r |
| 91 | sConsoleHandle, ' ', numNeeded, savedXY, &count );\r |
| 92 | }\r |
| 93 | }\r |
| 94 | \r |
| 95 | /******************************************************************/\r |
| 96 | static void sdCursorBack( int dx )\r |
| 97 | {\r |
| 98 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
| 99 | {\r |
| 100 | COORD XY;\r |
| 101 | XY.X = sScreenInfo.dwCursorPosition.X;\r |
| 102 | XY.Y = sScreenInfo.dwCursorPosition.Y;\r |
| 103 | XY.X -= dx;\r |
| 104 | if( XY.X < 0 ) XY.X = 0;\r |
| 105 | SetConsoleCursorPosition( sConsoleHandle, XY );\r |
| 106 | }\r |
| 107 | }\r |
| 108 | /******************************************************************/\r |
| 109 | static void sdCursorForward( int dx )\r |
| 110 | {\r |
| 111 | if( GetConsoleScreenBufferInfo( sConsoleHandle, &sScreenInfo ) )\r |
| 112 | {\r |
| 113 | COORD XY;\r |
| 114 | int width = sScreenInfo.dwSize.X;\r |
| 115 | XY.X = sScreenInfo.dwCursorPosition.X;\r |
| 116 | XY.Y = sScreenInfo.dwCursorPosition.Y;\r |
| 117 | XY.X += dx;\r |
| 118 | if( XY.X > width ) XY.X = width;\r |
| 119 | SetConsoleCursorPosition( sConsoleHandle, XY );\r |
| 120 | }\r |
| 121 | }\r |
| 122 | \r |
| 123 | /******************************************************************/\r |
| 124 | /* Use console mode I/O so that KEY and ?TERMINAL will work.\r |
| 125 | * Parse ANSI escape sequences and call the appropriate cursor\r |
| 126 | * control functions.\r |
| 127 | */\r |
| 128 | int sdTerminalOut( char c )\r |
| 129 | {\r |
| 130 | switch( sConsoleState )\r |
| 131 | {\r |
| 132 | case SDCONSOLE_STATE_IDLE:\r |
| 133 | switch( c )\r |
| 134 | {\r |
| 135 | case ASCII_ESCAPE:\r |
| 136 | sConsoleState = SDCONSOLE_STATE_GOT_ESCAPE;\r |
| 137 | break;\r |
| 138 | default:\r |
| 139 | sdConsoleEmit( c );\r |
| 140 | }\r |
| 141 | break;\r |
| 142 | \r |
| 143 | case SDCONSOLE_STATE_GOT_ESCAPE:\r |
| 144 | switch( c )\r |
| 145 | {\r |
| 146 | case '[':\r |
| 147 | sConsoleState = SDCONSOLE_STATE_GOT_BRACKET;\r |
| 148 | sParam1 = 0;\r |
| 149 | break;\r |
| 150 | default:\r |
| 151 | sConsoleState = SDCONSOLE_STATE_IDLE;\r |
| 152 | sdConsoleEmit( c );\r |
| 153 | }\r |
| 154 | break;\r |
| 155 | \r |
| 156 | case SDCONSOLE_STATE_GOT_BRACKET:\r |
| 157 | if( (c >= '0') && (c <= '9') )\r |
| 158 | {\r |
| 159 | sParam1 = (sParam1 * 10) + (c - '0');\r |
| 160 | }\r |
| 161 | else\r |
| 162 | {\r |
| 163 | sConsoleState = SDCONSOLE_STATE_IDLE;\r |
| 164 | if( c == 'K')\r |
| 165 | {\r |
| 166 | sdEraseEOL();\r |
| 167 | }\r |
| 168 | else if( c == 'D' )\r |
| 169 | {\r |
| 170 | sdCursorBack( sParam1 );\r |
| 171 | }\r |
| 172 | else if( c == 'C' )\r |
| 173 | {\r |
| 174 | sdCursorForward( sParam1 );\r |
| 175 | }\r |
| 176 | else if( (c == 'J') && (sParam1 == 2) )\r |
| 177 | {\r |
| 178 | sdClearScreen();\r |
| 179 | }\r |
| 180 | }\r |
| 181 | break;\r |
| 182 | }\r |
| 183 | return 0;\r |
| 184 | }\r |
| 185 | \r |
| 186 | /* Needed cuz _getch() does not echo. */\r |
| 187 | int sdTerminalEcho( char c )\r |
| 188 | {\r |
| 189 | sdConsoleEmit((char)(c));\r |
| 190 | return 0;\r |
| 191 | }\r |
| 192 | \r |
| 193 | int sdTerminalIn( void )\r |
| 194 | {\r |
| 195 | return _getch();\r |
| 196 | }\r |
| 197 | \r |
| 198 | int sdQueryTerminal( void )\r |
| 199 | {\r |
| 200 | return _kbhit();\r |
| 201 | }\r |
| 202 | \r |
| 203 | int sdTerminalFlush( void )\r |
| 204 | {\r |
| 205 | #ifdef PF_NO_FILEIO\r |
| 206 | return -1;\r |
| 207 | #else\r |
| 208 | return fflush(PF_STDOUT);\r |
| 209 | #endif\r |
| 210 | }\r |
| 211 | \r |
| 212 | void sdTerminalInit( void )\r |
| 213 | {\r |
| 214 | DWORD mode = 0;\r |
| 215 | sConsoleHandle = GetStdHandle( STD_OUTPUT_HANDLE );\r |
| 216 | if( GetConsoleMode( sConsoleHandle, &mode ) )\r |
| 217 | {\r |
| 218 | /*printf("GetConsoleMode() mode is 0x%08X\n", mode );*/\r |
| 219 | sIsConsoleValid = TRUE;\r |
| 220 | }\r |
| 221 | else\r |
| 222 | {\r |
| 223 | /*printf("GetConsoleMode() failed\n", mode );*/\r |
| 224 | sIsConsoleValid = FALSE;\r |
| 225 | }\r |
| 226 | }\r |
| 227 | \r |
| 228 | void sdTerminalTerm( void )\r |
| 229 | {\r |
| 230 | }\r |
| 231 | #endif\r |