| 1 | // |
|---|
| 2 | // TxWin, Textmode Windowing Library |
|---|
| 3 | // |
|---|
| 4 | // Original code Copyright (c) 1995-2005 Fsys Software and Jan van Wijk |
|---|
| 5 | // |
|---|
| 6 | // ========================================================================== |
|---|
| 7 | // |
|---|
| 8 | // This file contains Original Code and/or Modifications of Original Code as |
|---|
| 9 | // defined in and that are subject to the GNU Lesser General Public License. |
|---|
| 10 | // You may not use this file except in compliance with the License. |
|---|
| 11 | // BY USING THIS FILE YOU AGREE TO ALL TERMS AND CONDITIONS OF THE LICENSE. |
|---|
| 12 | // A copy of the License is provided with the Original Code and Modifications, |
|---|
| 13 | // and is also available at http://www.dfsee.com/txwin/lgpl.htm |
|---|
| 14 | // |
|---|
| 15 | // This library is free software; you can redistribute it and/or modify |
|---|
| 16 | // it under the terms of the GNU Lesser General Public License as published |
|---|
| 17 | // by the Free Software Foundation; either version 2.1 of the License, |
|---|
| 18 | // or (at your option) any later version. |
|---|
| 19 | // |
|---|
| 20 | // This library is distributed in the hope that it will be useful, |
|---|
| 21 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
|---|
| 22 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
|---|
| 23 | // See the GNU Lesser General Public License for more details. |
|---|
| 24 | // |
|---|
| 25 | // You should have received a copy of the GNU Lesser General Public License |
|---|
| 26 | // along with this library; (lgpl.htm) if not, write to the Free Software |
|---|
| 27 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
|---|
| 28 | // |
|---|
| 29 | // Questions on TxWin licensing can be directed to: txwin@fsys.nl |
|---|
| 30 | // |
|---|
| 31 | // ========================================================================== |
|---|
| 32 | // |
|---|
| 33 | // TX Basic text I/O primitives |
|---|
| 34 | // |
|---|
| 35 | // Author: J. van Wijk |
|---|
| 36 | // |
|---|
| 37 | // JvW 25-05-1999 Initial version, split off from ANSILOG.C |
|---|
| 38 | // JvW 22-08-2001 Added ReadCellStr & fixed WriteCellStr bug (garbage char) |
|---|
| 39 | // JvW 08-09-2001 Combined all functions from txw32con and txw32ans |
|---|
| 40 | // JvW 28-05-2002 Added DOS32 support (DOS4G/W or causeway or compatibles) |
|---|
| 41 | // JvW 07-06-2002 Speedup using selective direct video-memory access |
|---|
| 42 | // JvW 10-03-2004 Added Linux code and initializaton/termination API |
|---|
| 43 | |
|---|
| 44 | #include <txlib.h> |
|---|
| 45 | #include <txwpriv.h> // private window interface |
|---|
| 46 | |
|---|
| 47 | #if defined (WIN32) |
|---|
| 48 | |
|---|
| 49 | #define TX32CON_MAXERR 16 |
|---|
| 50 | |
|---|
| 51 | typedef enum tx_color_value |
|---|
| 52 | { |
|---|
| 53 | Black, Blue, Green, Cyan, |
|---|
| 54 | Red, Magenta, Brown, Light_Gray, |
|---|
| 55 | Dark_Gray, Light_Blue, Light_Green, Light_Cyan, |
|---|
| 56 | Light_Red, Light_Magenta, Yellow, White |
|---|
| 57 | } TX_COLOR_VALUE; |
|---|
| 58 | |
|---|
| 59 | static HANDLE virtualScrBuf = NULL; |
|---|
| 60 | |
|---|
| 61 | static void TxWntSetFgCol |
|---|
| 62 | ( |
|---|
| 63 | TX_COLOR_VALUE color // IN color value |
|---|
| 64 | ); |
|---|
| 65 | |
|---|
| 66 | static void TxWntSetBgCol |
|---|
| 67 | ( |
|---|
| 68 | TX_COLOR_VALUE color // IN color value |
|---|
| 69 | ); |
|---|
| 70 | |
|---|
| 71 | // set background and foreground color for NT console |
|---|
| 72 | static void txNtSet_color |
|---|
| 73 | ( |
|---|
| 74 | WORD color // IN combined color value |
|---|
| 75 | ); |
|---|
| 76 | |
|---|
| 77 | |
|---|
| 78 | // get the size of display area, horizontal |
|---|
| 79 | static int TxWntSx |
|---|
| 80 | ( |
|---|
| 81 | void |
|---|
| 82 | ); |
|---|
| 83 | |
|---|
| 84 | // get the size of display area, vertical |
|---|
| 85 | static int TxWntSy |
|---|
| 86 | ( |
|---|
| 87 | void |
|---|
| 88 | ); |
|---|
| 89 | |
|---|
| 90 | // get the position of the cursor, horizontal |
|---|
| 91 | static int TxWntCx |
|---|
| 92 | ( |
|---|
| 93 | void |
|---|
| 94 | ); |
|---|
| 95 | |
|---|
| 96 | // get the position of the cursor, vertical |
|---|
| 97 | static int TxWntCy |
|---|
| 98 | ( |
|---|
| 99 | void |
|---|
| 100 | ); |
|---|
| 101 | |
|---|
| 102 | // set the position of the cursor |
|---|
| 103 | static void TxWntGo |
|---|
| 104 | ( |
|---|
| 105 | int x, // IN horizontal position |
|---|
| 106 | int y // IN horizontal position |
|---|
| 107 | ); |
|---|
| 108 | |
|---|
| 109 | // clear the screen |
|---|
| 110 | static void TxWntClearScreen |
|---|
| 111 | ( |
|---|
| 112 | void |
|---|
| 113 | ); |
|---|
| 114 | |
|---|
| 115 | // clear to end of line |
|---|
| 116 | static void TxWntClrToEndOfLine |
|---|
| 117 | ( |
|---|
| 118 | void |
|---|
| 119 | ); |
|---|
| 120 | |
|---|
| 121 | // write a single character to the console |
|---|
| 122 | static void TxWntWriteChar |
|---|
| 123 | ( |
|---|
| 124 | char ch // IN character to write |
|---|
| 125 | ); |
|---|
| 126 | |
|---|
| 127 | //- write string to console, limit to length (clipping) |
|---|
| 128 | static void TxWntWriteString |
|---|
| 129 | ( |
|---|
| 130 | char *str, // IN string pointer |
|---|
| 131 | short length // IN length to write |
|---|
| 132 | ); |
|---|
| 133 | |
|---|
| 134 | // get the current status of the output buffer |
|---|
| 135 | static int TxWntGetScrInfo |
|---|
| 136 | ( |
|---|
| 137 | HANDLE buffer, |
|---|
| 138 | PCONSOLE_SCREEN_BUFFER_INFO info |
|---|
| 139 | ); |
|---|
| 140 | |
|---|
| 141 | #elif defined (LINUX) // Linux console/xterm |
|---|
| 142 | #include <sys/ioctl.h> |
|---|
| 143 | #include <sys/time.h> |
|---|
| 144 | |
|---|
| 145 | typedef struct tx_screen |
|---|
| 146 | { |
|---|
| 147 | short cols; // screen width in characters |
|---|
| 148 | short rows; // screen length in lines |
|---|
| 149 | TXCELL *buffer; // screen buffer |
|---|
| 150 | } TX_SCREEN; |
|---|
| 151 | |
|---|
| 152 | |
|---|
| 153 | //- WARNING: Edit the two tables below in codepage-437 for readability! |
|---|
| 154 | //- character translation table, for alternate-set and controlchar replacement |
|---|
| 155 | //- Codepage-437 capable version (drawing characters) like Linux console |
|---|
| 156 | static char chTransConsole[256] = |
|---|
| 157 | { |
|---|
| 158 | //- 1 2 3 4 5 6 7 8 9 A B C D E F |
|---|
| 159 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 00 |
|---|
| 160 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 10 |
|---|
| 161 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20 |
|---|
| 162 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 30 |
|---|
| 163 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40 |
|---|
| 164 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 50 |
|---|
| 165 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60 |
|---|
| 166 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '^', // 70 |
|---|
| 167 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 80 |
|---|
| 168 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 90 |
|---|
| 169 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '®', '¯', // A0 |
|---|
| 170 | '°', '±', '²', '³', 'Ž', '¹', '¹', '»', '»', '¹', 'º', '»', 'Œ', 'Œ', 'Œ', '¿', // B0 |
|---|
| 171 | 'À', 'Á', 'Â', 'Ã', 'Ä', 'Å', 'Ì', 'Ì', 'È', 'É', 'Ê', 'Ë', 'Ì', 'Í', 'Î', 'Á', // C0 |
|---|
| 172 | 'Ê', 'Ë', 'Ë', 'È', 'È', 'É', 'É', 'Î', 'Î', 'Ù', 'Ú', 'Û', 'Ü', 'Ý', 'Þ', 'ß', // D0 |
|---|
| 173 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // E0 |
|---|
| 174 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'x', 0, 0, 0, // F0 |
|---|
| 175 | }; |
|---|
| 176 | |
|---|
| 177 | #if defined (USEWINDOWING) |
|---|
| 178 | //- character translation table, for alternate-set and controlchar replacement |
|---|
| 179 | //- Generic terminal version (no drawing characters) like X-terminal or VT220 |
|---|
| 180 | static char chTransGeneric[256] = |
|---|
| 181 | { |
|---|
| 182 | //- 1 2 3 4 5 6 7 8 9 A B C D E F |
|---|
| 183 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 00 |
|---|
| 184 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 10 |
|---|
| 185 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20 |
|---|
| 186 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 30 |
|---|
| 187 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40 |
|---|
| 188 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 50 |
|---|
| 189 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60 |
|---|
| 190 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '^', // 70 |
|---|
| 191 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 80 |
|---|
| 192 | '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', '^', // 90 |
|---|
| 193 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 171, 187, // A0 |
|---|
| 194 | 97, 97, 97, 120, 117, 117, 117, 107, 107, 117, 166, 107, 106, 106, 106, 107, // B0 |
|---|
| 195 | 109, 118, 119, 116, 113, 110, 116, 116, 109, 108, 118, 119, 116, '=', 110, 118, // C0 |
|---|
| 196 | 118, 119, 119, 109, 109, 108, 108, 110, 110, 106, 108, 97, 113, 120, 120, 113, // D0 |
|---|
| 197 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // E0 |
|---|
| 198 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 'x', 0, 0, 0, // F0 |
|---|
| 199 | }; |
|---|
| 200 | |
|---|
| 201 | //- terminal dependent definitions and escape-sequences |
|---|
| 202 | //- Note: All terminals are supposed to understand the ANSI sequenses for colors |
|---|
| 203 | |
|---|
| 204 | static TXTT txlTermCap_eA = ""; // Terminal initialize ?? |
|---|
| 205 | |
|---|
| 206 | static short virtualCurCol; // cursor pos on virtual screen |
|---|
| 207 | static short virtualCurRow; |
|---|
| 208 | static BOOL cursorVisible = FALSE; // cursor should be visible |
|---|
| 209 | static BOOL cursorInsert = FALSE; // cursor shape insert mode |
|---|
| 210 | |
|---|
| 211 | #endif // USEWINDOWING |
|---|
| 212 | |
|---|
| 213 | static TXLTERM txlTerminal = TXLT_CONSOLE; // default linux console |
|---|
| 214 | static char *txlTransTable = chTransConsole; // actual translate table |
|---|
| 215 | static BOOL txl16ColorsBg = TRUE; // allow 16 colors background |
|---|
| 216 | static TXTT txlTermCap_ae = ""; // Switch to standard charset |
|---|
| 217 | static TXTT txlTermCap_as = ""; // Switch to alternate charset |
|---|
| 218 | static short displayCurCol; // cursor pos on display device |
|---|
| 219 | static short displayCurRow; |
|---|
| 220 | static BYTE currentColor = 0; // current color value |
|---|
| 221 | static BOOL alternateChr = FALSE; // alternate set in use now |
|---|
| 222 | static TX_SCREEN virtualScreen = {80, 25, NULL}; // updated by application |
|---|
| 223 | static TX_SCREEN displayScreen = {80, 25, NULL}; // as shown on display |
|---|
| 224 | |
|---|
| 225 | |
|---|
| 226 | //- initialize Linux display |
|---|
| 227 | static ULONG TxLinInitializeDisplay |
|---|
| 228 | ( |
|---|
| 229 | void |
|---|
| 230 | ); |
|---|
| 231 | |
|---|
| 232 | //- Restore Linux console to initial status |
|---|
| 233 | static void TxLinTerminateDisplay |
|---|
| 234 | ( |
|---|
| 235 | void |
|---|
| 236 | ); |
|---|
| 237 | |
|---|
| 238 | // set cursor position, update visibility if moving off/on screen |
|---|
| 239 | static void TxLinSetCursorPos |
|---|
| 240 | ( |
|---|
| 241 | short row, |
|---|
| 242 | short col |
|---|
| 243 | ); |
|---|
| 244 | |
|---|
| 245 | // make cursor invisible |
|---|
| 246 | static void TxLinHideCursor |
|---|
| 247 | ( |
|---|
| 248 | void |
|---|
| 249 | ); |
|---|
| 250 | |
|---|
| 251 | // make cursor visible |
|---|
| 252 | static void TxLinShowCursor |
|---|
| 253 | ( |
|---|
| 254 | void |
|---|
| 255 | ); |
|---|
| 256 | |
|---|
| 257 | // Draw characters to the actual display terminal for specified fragment |
|---|
| 258 | static void TxLinUpdateFragment |
|---|
| 259 | ( |
|---|
| 260 | short start, |
|---|
| 261 | short end |
|---|
| 262 | ); |
|---|
| 263 | |
|---|
| 264 | // refresh specified area in display-buffer from virtual one |
|---|
| 265 | static void TxLinUpdateArea |
|---|
| 266 | ( |
|---|
| 267 | short refresh_start, // start offset in virtual |
|---|
| 268 | short refresh_end // end offset |
|---|
| 269 | ); |
|---|
| 270 | |
|---|
| 271 | // refresh multiple lines on display |
|---|
| 272 | static void TxLinUpdateLines |
|---|
| 273 | ( |
|---|
| 274 | short first, // IN first line to refresh |
|---|
| 275 | short last // IN last line to refresh |
|---|
| 276 | ); |
|---|
| 277 | |
|---|
| 278 | // Get console/window display size |
|---|
| 279 | static void TxLinGetScreenSize |
|---|
| 280 | ( |
|---|
| 281 | short *cols, |
|---|
| 282 | short *rows |
|---|
| 283 | ); |
|---|
| 284 | |
|---|
| 285 | // Set global screen buffers to specified size |
|---|
| 286 | static ULONG TxLinAllocScrBuffers |
|---|
| 287 | ( |
|---|
| 288 | short cols, // IN number of columns |
|---|
| 289 | short rows // IN number of rows |
|---|
| 290 | ); |
|---|
| 291 | |
|---|
| 292 | // Set cursor position on display device |
|---|
| 293 | static void TxLinSetDevCursorPos |
|---|
| 294 | ( |
|---|
| 295 | short col, |
|---|
| 296 | short row |
|---|
| 297 | ); |
|---|
| 298 | |
|---|
| 299 | // Make cursor invisible on display device |
|---|
| 300 | static void TxLinHideDevCursor |
|---|
| 301 | ( |
|---|
| 302 | void |
|---|
| 303 | ); |
|---|
| 304 | |
|---|
| 305 | // Make cursor visible on display device |
|---|
| 306 | static void TxLinShowDevCursor |
|---|
| 307 | ( |
|---|
| 308 | void |
|---|
| 309 | ); |
|---|
| 310 | |
|---|
| 311 | #define TXX_VIDEO ((BYTE *) virtualScreen.buffer) |
|---|
| 312 | |
|---|
| 313 | #elif defined (DOS32) // extended DOS |
|---|
| 314 | |
|---|
| 315 | #define VideoInt10() int386( TXDX_VIDEO, ®s, ®s) |
|---|
| 316 | |
|---|
| 317 | #define TXX_VIDEO ((BYTE *) 0xb8000) // Video memory start |
|---|
| 318 | |
|---|
| 319 | #else // OS/2 VIO subsystem |
|---|
| 320 | |
|---|
| 321 | typedef struct txviostate |
|---|
| 322 | { |
|---|
| 323 | USHORT length; // length of struct = 6 |
|---|
| 324 | USHORT request; // request type = 3 |
|---|
| 325 | USHORT bright; // 0 = blink; 1 = bright |
|---|
| 326 | } TXVIOSTATE; // end of struct txviostate |
|---|
| 327 | #endif |
|---|
| 328 | |
|---|
| 329 | |
|---|
| 330 | /*****************************************************************************/ |
|---|
| 331 | // Initialize low level screen/terminal handling |
|---|
| 332 | /*****************************************************************************/ |
|---|
| 333 | ULONG TxScreenInitialize |
|---|
| 334 | ( |
|---|
| 335 | void |
|---|
| 336 | ) |
|---|
| 337 | { |
|---|
| 338 | ULONG rc = NO_ERROR; // function return |
|---|
| 339 | |
|---|
| 340 | #if defined (LINUX) |
|---|
| 341 | rc = TxLinInitializeDisplay(); |
|---|
| 342 | #endif |
|---|
| 343 | |
|---|
| 344 | return (rc); |
|---|
| 345 | } // end 'TxScreenInitialize' |
|---|
| 346 | /*---------------------------------------------------------------------------*/ |
|---|
| 347 | |
|---|
| 348 | /*****************************************************************************/ |
|---|
| 349 | // Terminate low level screen/terminal handling |
|---|
| 350 | /*****************************************************************************/ |
|---|
| 351 | ULONG TxScreenTerminate |
|---|
| 352 | ( |
|---|
| 353 | void |
|---|
| 354 | ) |
|---|
| 355 | { |
|---|
| 356 | ULONG rc = NO_ERROR; // function return |
|---|
| 357 | |
|---|
| 358 | #if defined (LINUX) |
|---|
| 359 | TxLinTerminateDisplay(); |
|---|
| 360 | #elif defined (WIN32) |
|---|
| 361 | txNtSet_color((WORD) TX_Default); |
|---|
| 362 | #endif |
|---|
| 363 | |
|---|
| 364 | return (rc); |
|---|
| 365 | } // end 'TxScreenTerminate' |
|---|
| 366 | /*---------------------------------------------------------------------------*/ |
|---|
| 367 | |
|---|
| 368 | |
|---|
| 369 | |
|---|
| 370 | /*****************************************************************************/ |
|---|
| 371 | // Return number of columns on the screen |
|---|
| 372 | /*****************************************************************************/ |
|---|
| 373 | short TxScreenCols // RET current screen columns |
|---|
| 374 | ( |
|---|
| 375 | void |
|---|
| 376 | ) |
|---|
| 377 | { |
|---|
| 378 | short col = 80; |
|---|
| 379 | |
|---|
| 380 | #if defined (WIN32) |
|---|
| 381 | col = (short ) TxWntSx(); |
|---|
| 382 | #elif defined (DOS32) |
|---|
| 383 | col = TxxBiosWord(TXX_CRT_COLS); // get from BIOS data area |
|---|
| 384 | #elif defined (LINUX) |
|---|
| 385 | col = virtualScreen.cols; |
|---|
| 386 | #else |
|---|
| 387 | VIOMODEINFO vio; |
|---|
| 388 | |
|---|
| 389 | vio.cb = sizeof(VIOMODEINFO); |
|---|
| 390 | |
|---|
| 391 | if (VioGetMode(&vio, 0) == NO_ERROR) // get current screenmode |
|---|
| 392 | { |
|---|
| 393 | col = vio.col; |
|---|
| 394 | } |
|---|
| 395 | #endif |
|---|
| 396 | return( col); |
|---|
| 397 | } // end 'TxScreenCols' |
|---|
| 398 | /*---------------------------------------------------------------------------*/ |
|---|
| 399 | |
|---|
| 400 | #if defined (USEWINDOWING) || defined (DOS32) |
|---|
| 401 | /*****************************************************************************/ |
|---|
| 402 | // Return current cursor column, 0 = left |
|---|
| 403 | /*****************************************************************************/ |
|---|
| 404 | short TxCursorCol // RET current cursor column |
|---|
| 405 | ( |
|---|
| 406 | void |
|---|
| 407 | ) |
|---|
| 408 | { |
|---|
| 409 | USHORT col = 1; |
|---|
| 410 | |
|---|
| 411 | #if defined (WIN32) |
|---|
| 412 | col = (USHORT) TxWntCx(); |
|---|
| 413 | #elif defined (DOS32) |
|---|
| 414 | union REGS regs; |
|---|
| 415 | |
|---|
| 416 | TxxClearReg( regs); |
|---|
| 417 | regs.h.bh = 0x00; // first page of text-video mem |
|---|
| 418 | TxxVideoInt( regs, TXDX_VIDEO_GETCURSOR); |
|---|
| 419 | |
|---|
| 420 | col = (USHORT) regs.h.dl; |
|---|
| 421 | #elif defined (LINUX) |
|---|
| 422 | col = (USHORT) virtualCurCol; |
|---|
| 423 | #else |
|---|
| 424 | USHORT row; |
|---|
| 425 | |
|---|
| 426 | VioGetCurPos( &row, &col, 0); |
|---|
| 427 | #endif |
|---|
| 428 | return((short) col); |
|---|
| 429 | } // end 'TxCursorCol' |
|---|
| 430 | /*---------------------------------------------------------------------------*/ |
|---|
| 431 | #endif |
|---|
| 432 | |
|---|
| 433 | #if defined (USEWINDOWING) |
|---|
| 434 | /*****************************************************************************/ |
|---|
| 435 | // Return number of lines on the screen |
|---|
| 436 | /*****************************************************************************/ |
|---|
| 437 | short TxScreenRows // RET current screen rows |
|---|
| 438 | ( |
|---|
| 439 | void |
|---|
| 440 | ) |
|---|
| 441 | { |
|---|
| 442 | short row = 25; |
|---|
| 443 | |
|---|
| 444 | #if defined (WIN32) |
|---|
| 445 | row = (short ) TxWntSy(); |
|---|
| 446 | #elif defined (DOS32) |
|---|
| 447 | row = (USHORT) TxxBiosChar(TXX_CRT_ROWS) +1; // get from BIOS data area |
|---|
| 448 | #elif defined (LINUX) |
|---|
| 449 | row = virtualScreen.rows; |
|---|
| 450 | #else |
|---|
| 451 | VIOMODEINFO vio; |
|---|
| 452 | |
|---|
| 453 | vio.cb = sizeof(VIOMODEINFO); |
|---|
| 454 | |
|---|
| 455 | if (VioGetMode(&vio, 0) == NO_ERROR) // get current screenmode |
|---|
| 456 | { |
|---|
| 457 | row = vio.row; |
|---|
| 458 | } |
|---|
| 459 | #endif |
|---|
| 460 | return( row); |
|---|
| 461 | } // end 'TxScreenRows' |
|---|
| 462 | /*---------------------------------------------------------------------------*/ |
|---|
| 463 | |
|---|
| 464 | |
|---|
| 465 | /*****************************************************************************/ |
|---|
| 466 | // Return current cursor row, 0 = top |
|---|
| 467 | /*****************************************************************************/ |
|---|
| 468 | short TxCursorRow // RET current cursor row |
|---|
| 469 | ( |
|---|
| 470 | void |
|---|
| 471 | ) |
|---|
| 472 | { |
|---|
| 473 | USHORT row = 1; |
|---|
| 474 | |
|---|
| 475 | #if defined (WIN32) |
|---|
| 476 | row = (USHORT) TxWntCy(); |
|---|
| 477 | #elif defined (DOS32) |
|---|
| 478 | union REGS regs; |
|---|
| 479 | |
|---|
| 480 | TxxClearReg( regs); |
|---|
| 481 | regs.h.bh = 0x00; // first page of text-video mem |
|---|
| 482 | TxxVideoInt( regs, TXDX_VIDEO_GETCURSOR); |
|---|
| 483 | |
|---|
| 484 | row = (USHORT) regs.h.dh; |
|---|
| 485 | #elif defined (LINUX) |
|---|
| 486 | row = (USHORT) virtualCurRow; |
|---|
| 487 | #else |
|---|
| 488 | USHORT col; |
|---|
| 489 | |
|---|
| 490 | VioGetCurPos( &row, &col, 0); |
|---|
| 491 | #endif |
|---|
| 492 | return((short) row); |
|---|
| 493 | } // end 'TxCursorRow' |
|---|
| 494 | /*---------------------------------------------------------------------------*/ |
|---|
| 495 | |
|---|
| 496 | /*****************************************************************************/ |
|---|
| 497 | // Set new cursor position row and column |
|---|
| 498 | /*****************************************************************************/ |
|---|
| 499 | void TxSetCursorPos |
|---|
| 500 | ( |
|---|
| 501 | short row, // IN destination row |
|---|
| 502 | short col // IN destination column |
|---|
| 503 | ) |
|---|
| 504 | { |
|---|
| 505 | #if defined (WIN32) |
|---|
| 506 | TxWntGo((int) col, (int) row); |
|---|
| 507 | #elif defined (DOS32) |
|---|
| 508 | union REGS regs; |
|---|
| 509 | |
|---|
| 510 | TxxClearReg( regs); |
|---|
| 511 | regs.h.bh = 0x00; // first page of text-video mem |
|---|
| 512 | regs.h.dh = (BYTE) row; |
|---|
| 513 | regs.h.dl = (BYTE) col; |
|---|
| 514 | TxxVideoInt( regs, TXDX_VIDEO_SETCURSOR); |
|---|
| 515 | #elif defined (LINUX) |
|---|
| 516 | TxLinSetCursorPos( row, col); |
|---|
| 517 | #else |
|---|
| 518 | VioSetCurPos((USHORT) row, (USHORT) col, 0); |
|---|
| 519 | #endif |
|---|
| 520 | return; |
|---|
| 521 | } // end 'TxSetCursorPos' |
|---|
| 522 | /*---------------------------------------------------------------------------*/ |
|---|
| 523 | |
|---|
| 524 | /*****************************************************************************/ |
|---|
| 525 | // Set new cursor visibility and style |
|---|
| 526 | /*****************************************************************************/ |
|---|
| 527 | void TxSetCursorStyle |
|---|
| 528 | ( |
|---|
| 529 | BOOL visible, // IN cursor visible |
|---|
| 530 | BOOL insert // IN insert style |
|---|
| 531 | ) |
|---|
| 532 | { |
|---|
| 533 | #if defined (WIN32) |
|---|
| 534 | CONSOLE_CURSOR_INFO cinfo; |
|---|
| 535 | |
|---|
| 536 | cinfo.dwSize = (insert) ? 50 : 10; |
|---|
| 537 | cinfo.bVisible = visible; |
|---|
| 538 | |
|---|
| 539 | SetConsoleCursorInfo( virtualScrBuf, &cinfo); |
|---|
| 540 | #elif defined (DOS32) |
|---|
| 541 | union REGS regs; |
|---|
| 542 | |
|---|
| 543 | TxxClearReg( regs); |
|---|
| 544 | if (visible) |
|---|
| 545 | { |
|---|
| 546 | regs.h.ch = (insert) ? (BYTE) 4 : (BYTE) 6; |
|---|
| 547 | regs.h.cl = 7; |
|---|
| 548 | } |
|---|
| 549 | else |
|---|
| 550 | { |
|---|
| 551 | regs.h.ch = 0x20; |
|---|
| 552 | } |
|---|
| 553 | TxxVideoInt( regs, TXDX_VIDEO_SETCSHAPE); |
|---|
| 554 | #elif defined (LINUX) |
|---|
| 555 | //- to be refined, set cursor shape for insert (ioctl ?) |
|---|
| 556 | //- use TermCap ve (normal) vs (insert) and vi (hidden) escape strings |
|---|
| 557 | if (visible) |
|---|
| 558 | { |
|---|
| 559 | TxLinShowCursor(); |
|---|
| 560 | } |
|---|
| 561 | else |
|---|
| 562 | { |
|---|
| 563 | TxLinHideCursor(); |
|---|
| 564 | } |
|---|
| 565 | cursorInsert = insert; |
|---|
| 566 | #else |
|---|
| 567 | VIOCURSORINFO ci; |
|---|
| 568 | |
|---|
| 569 | VioGetCurType( &ci, 0); // get current cursor style |
|---|
| 570 | |
|---|
| 571 | ci.attr = (USHORT) ((visible) ? 1 : -1); |
|---|
| 572 | ci.yStart = (USHORT) ((insert) ? -50 : -90); |
|---|
| 573 | ci.cEnd = (USHORT) (-100); |
|---|
| 574 | |
|---|
| 575 | VioSetCurType( &ci, 0); // set current cursor style |
|---|
| 576 | #endif |
|---|
| 577 | return; |
|---|
| 578 | } // end 'TxSetCursorStyle' |
|---|
| 579 | /*---------------------------------------------------------------------------*/ |
|---|
| 580 | #endif |
|---|
| 581 | |
|---|
| 582 | /*****************************************************************************/ |
|---|
| 583 | // Set blinking/bright-background mode for fullscreen sessions (VGA) |
|---|
| 584 | /*****************************************************************************/ |
|---|
| 585 | void TxSetBrightBgMode |
|---|
| 586 | ( |
|---|
| 587 | BOOL bright // IN use bright background |
|---|
| 588 | ) |
|---|
| 589 | { |
|---|
| 590 | #if defined (WIN32) // no setting needed (no FS) |
|---|
| 591 | #elif defined (DOS32) |
|---|
| 592 | union REGS regs; |
|---|
| 593 | |
|---|
| 594 | TxxClearReg( regs); |
|---|
| 595 | regs.h.al = 0x03; // set bright/blinking |
|---|
| 596 | regs.h.bl = (BYTE) ((bright) ? 0 : 1); |
|---|
| 597 | TxxVideoInt( regs, TXDX_VIDEO_SETSTATUS); |
|---|
| 598 | #elif defined (LINUX) |
|---|
| 599 | //- to be refined |
|---|
| 600 | #else // use VioSetState INTENSITY |
|---|
| 601 | TXVIOSTATE viostate; |
|---|
| 602 | |
|---|
| 603 | viostate.length = 6; // length of struct |
|---|
| 604 | viostate.request = 2; // request type |
|---|
| 605 | viostate.bright = (bright) ? 1 : 0; // 0 = blink; 1 = bright |
|---|
| 606 | |
|---|
| 607 | VioSetState( &viostate, 0); // set bright/blink state |
|---|
| 608 | #endif |
|---|
| 609 | return; |
|---|
| 610 | } // end 'TxSetBrightBgMode' |
|---|
| 611 | /*---------------------------------------------------------------------------*/ |
|---|
| 612 | |
|---|
| 613 | #if defined (USEWINDOWING) |
|---|
| 614 | /*****************************************************************************/ |
|---|
| 615 | // Draw a character-string at specified position, clip to optional clip-rect |
|---|
| 616 | /*****************************************************************************/ |
|---|
| 617 | void txwScrDrawCharString |
|---|
| 618 | ( |
|---|
| 619 | short row, // IN destination row |
|---|
| 620 | short col, // IN destination column |
|---|
| 621 | TXRECT *clip, // IN opt clip-rectangle |
|---|
| 622 | char *str // IN string to draw |
|---|
| 623 | ) |
|---|
| 624 | { |
|---|
| 625 | short length; // length visible string |
|---|
| 626 | short start; // start-offset visible string |
|---|
| 627 | |
|---|
| 628 | TXSCREEN_BEGIN_UPDATE(); |
|---|
| 629 | length = txwCalculateStringClip( row, col, (short) strlen(str), clip, &start); |
|---|
| 630 | if (length > 0) |
|---|
| 631 | { |
|---|
| 632 | short srow = TxCursorRow(); |
|---|
| 633 | short scol = TxCursorCol(); |
|---|
| 634 | |
|---|
| 635 | #if defined (WIN32) |
|---|
| 636 | COORD dpos; |
|---|
| 637 | ULONG todo = (ULONG) length; |
|---|
| 638 | ULONG done; |
|---|
| 639 | |
|---|
| 640 | dpos.X = col + start; |
|---|
| 641 | dpos.Y = row; |
|---|
| 642 | |
|---|
| 643 | WriteConsoleOutputCharacter( virtualScrBuf, |
|---|
| 644 | (LPCTSTR) (str + start), todo, dpos, &done); |
|---|
| 645 | |
|---|
| 646 | #elif defined (DEV32) // OS/2 VIO subsystem |
|---|
| 647 | memcpy( txVbuf, str + start, length); |
|---|
| 648 | txVbuf[ length] = 0; |
|---|
| 649 | |
|---|
| 650 | VioWrtCharStr( txVbuf, length, row, col + start, 0); |
|---|
| 651 | |
|---|
| 652 | #else // DOS or LINUX memory mapped |
|---|
| 653 | short i; |
|---|
| 654 | BYTE *first = TXX_VIDEO; |
|---|
| 655 | |
|---|
| 656 | first += ((row * TxScreenCols()) +col +start) *2; |
|---|
| 657 | |
|---|
| 658 | for (i = 0; i < length; i++) // itterate over visible string |
|---|
| 659 | { |
|---|
| 660 | *first = str[ start + i]; // write the character |
|---|
| 661 | first++; // move to attribute byte |
|---|
| 662 | first++; // move to next character |
|---|
| 663 | } |
|---|
| 664 | #endif |
|---|
| 665 | TxSetCursorPos( srow, scol); // restore cursor position |
|---|
| 666 | } |
|---|
| 667 | TXSCREEN_ENDOF_UPDATE(); |
|---|
| 668 | return; |
|---|
| 669 | } // end 'txwScrDrawCharString' |
|---|
| 670 | /*---------------------------------------------------------------------------*/ |
|---|
| 671 | |
|---|
| 672 | |
|---|
| 673 | /*****************************************************************************/ |
|---|
| 674 | // Draw a character-string at position in specified color, using clip-rect |
|---|
| 675 | /*****************************************************************************/ |
|---|
| 676 | void txwScrDrawCharStrCol |
|---|
| 677 | ( |
|---|
| 678 | short row, // IN destination row |
|---|
| 679 | short col, // IN destination column |
|---|
| 680 | TXRECT *clip, // IN opt clip-rectangle |
|---|
| 681 | char *str, // IN string to draw |
|---|
| 682 | BYTE color // IN color attribute |
|---|
| 683 | ) |
|---|
| 684 | { |
|---|
| 685 | short length; // length visible string |
|---|
| 686 | short start; // start-offset visible string |
|---|
| 687 | |
|---|
| 688 | TXSCREEN_BEGIN_UPDATE(); |
|---|
| 689 | length = txwCalculateStringClip( row, col, (short |
|---|