Amit Daniel Kachhap | e6a01f5 | 2011-07-20 11:45:59 +0530 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | * Copyright (c) 2007,2008 Free Software Foundation, Inc. * |
| 3 | * * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a * |
| 5 | * copy of this software and associated documentation files (the * |
| 6 | * "Software"), to deal in the Software without restriction, including * |
| 7 | * without limitation the rights to use, copy, modify, merge, publish, * |
| 8 | * distribute, distribute with modifications, sublicense, and/or sell * |
| 9 | * copies of the Software, and to permit persons to whom the Software is * |
| 10 | * furnished to do so, subject to the following conditions: * |
| 11 | * * |
| 12 | * The above copyright notice and this permission notice shall be included * |
| 13 | * in all copies or substantial portions of the Software. * |
| 14 | * * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * |
| 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * |
| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * |
| 18 | * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * |
| 19 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * |
| 20 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * |
| 21 | * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * |
| 22 | * * |
| 23 | * Except as contained in this notice, the name(s) of the above copyright * |
| 24 | * holders shall not be used in advertising or otherwise to promote the * |
| 25 | * sale, use or other dealings in this Software without prior written * |
| 26 | * authorization. * |
| 27 | ****************************************************************************/ |
| 28 | /* |
| 29 | * $Id: test_getstr.c,v 1.8 2008/02/09 18:09:35 tom Exp $ |
| 30 | * |
| 31 | * Author: Thomas E Dickey |
| 32 | * |
| 33 | * Demonstrate the getstr functions from the curses library. |
| 34 | |
| 35 | int getstr(char *str); |
| 36 | int getnstr(char *str, int n); |
| 37 | int wgetstr(WINDOW *win, char *str); |
| 38 | int wgetnstr(WINDOW *win, char *str, int n); |
| 39 | int mvgetstr(int y, int x, char *str); |
| 40 | int mvwgetstr(WINDOW *win, int y, int x, char *str); |
| 41 | int mvgetnstr(int y, int x, char *str, int n); |
| 42 | int mvwgetnstr(WINDOW *, int y, int x, char *str, int n); |
| 43 | */ |
| 44 | |
| 45 | #include <test.priv.h> |
| 46 | |
| 47 | #if HAVE_CHGAT |
| 48 | /* Solaris SVr4 curses lacks wchgat, mvgetnstr, mvwgetnstr */ |
| 49 | |
| 50 | #define BASE_Y 6 |
| 51 | #define MAX_COLS 1024 |
| 52 | |
| 53 | typedef enum { |
| 54 | eGetStr = 0, |
| 55 | eGetNStr, |
| 56 | eMvGetStr, |
| 57 | eMvGetNStr, |
| 58 | eMaxFlavor |
| 59 | } Flavors; |
| 60 | |
| 61 | static bool |
| 62 | Quit(int ch) |
| 63 | { |
| 64 | return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE); |
| 65 | } |
| 66 | |
| 67 | static int |
| 68 | Remainder(WINDOW *txtwin) |
| 69 | { |
| 70 | int result = getmaxx(txtwin) - getcurx(txtwin); |
| 71 | return (result > 0) ? result : 0; |
| 72 | } |
| 73 | |
| 74 | /* |
| 75 | * Show a highlighted line in the place where input will happen. |
| 76 | */ |
| 77 | static void |
| 78 | ShowPrompt(WINDOW *txtwin, int limit) |
| 79 | { |
| 80 | wchgat(txtwin, limit, A_REVERSE, 0, NULL); |
| 81 | wnoutrefresh(txtwin); |
| 82 | } |
| 83 | |
| 84 | static void |
| 85 | MovePrompt(WINDOW *txtwin, int limit, int y, int x) |
| 86 | { |
| 87 | wchgat(txtwin, Remainder(txtwin), A_NORMAL, 0, NULL); |
| 88 | wmove(txtwin, y, x); |
| 89 | ShowPrompt(txtwin, limit); |
| 90 | } |
| 91 | |
| 92 | static int |
| 93 | ShowFlavor(WINDOW *strwin, WINDOW *txtwin, int flavor, int limit) |
| 94 | { |
| 95 | const char *name = "?"; |
| 96 | bool limited = FALSE; |
| 97 | bool wins = (txtwin != stdscr); |
| 98 | int result; |
| 99 | |
| 100 | switch (flavor) { |
| 101 | case eGetStr: |
| 102 | name = wins ? "wgetstr" : "getstr"; |
| 103 | break; |
| 104 | case eGetNStr: |
| 105 | limited = TRUE; |
| 106 | name = wins ? "wgetnstr" : "getnstr"; |
| 107 | break; |
| 108 | case eMvGetStr: |
| 109 | name = wins ? "mvwgetstr" : "mvgetstr"; |
| 110 | break; |
| 111 | case eMvGetNStr: |
| 112 | limited = TRUE; |
| 113 | name = wins ? "mvwgetnstr" : "mvgetnstr"; |
| 114 | break; |
| 115 | case eMaxFlavor: |
| 116 | break; |
| 117 | } |
| 118 | |
| 119 | wmove(strwin, 0, 0); |
| 120 | werase(strwin); |
| 121 | |
| 122 | if (limited) { |
| 123 | wprintw(strwin, "%s(%d):", name, limit); |
| 124 | } else { |
| 125 | wprintw(strwin, "%s:", name); |
| 126 | } |
| 127 | result = limited ? limit : Remainder(txtwin); |
| 128 | ShowPrompt(txtwin, result); |
| 129 | |
| 130 | wnoutrefresh(strwin); |
| 131 | return result; |
| 132 | } |
| 133 | |
| 134 | static int |
| 135 | test_getstr(int level, char **argv, WINDOW *strwin) |
| 136 | { |
| 137 | WINDOW *txtbox = 0; |
| 138 | WINDOW *txtwin = 0; |
| 139 | FILE *fp; |
| 140 | int ch; |
| 141 | int rc; |
| 142 | int txt_x = 0, txt_y = 0; |
| 143 | int base_y; |
| 144 | int flavor = 0; |
| 145 | int limit = getmaxx(strwin) - 5; |
| 146 | int actual; |
| 147 | |
| 148 | char buffer[MAX_COLS]; |
| 149 | |
| 150 | if (argv[level] == 0) { |
| 151 | beep(); |
| 152 | return FALSE; |
| 153 | } |
| 154 | |
| 155 | if (level > 1) { |
| 156 | txtbox = newwin(LINES - BASE_Y, COLS - level, BASE_Y, level); |
| 157 | box(txtbox, 0, 0); |
| 158 | wnoutrefresh(txtbox); |
| 159 | |
| 160 | txtwin = derwin(txtbox, |
| 161 | getmaxy(txtbox) - 2, |
| 162 | getmaxx(txtbox) - 2, |
| 163 | 1, 1); |
| 164 | base_y = 0; |
| 165 | } else { |
| 166 | txtwin = stdscr; |
| 167 | base_y = BASE_Y; |
| 168 | } |
| 169 | |
| 170 | keypad(txtwin, TRUE); /* enable keyboard mapping */ |
| 171 | (void) cbreak(); /* take input chars one at a time, no wait for \n */ |
| 172 | (void) noecho(); /* don't echo input */ |
| 173 | |
| 174 | txt_y = base_y; |
| 175 | txt_x = 0; |
| 176 | wmove(txtwin, txt_y, txt_x); |
| 177 | |
| 178 | if ((fp = fopen(argv[level], "r")) != 0) { |
| 179 | while ((ch = fgetc(fp)) != EOF) { |
| 180 | if (waddch(txtwin, UChar(ch)) != OK) { |
| 181 | break; |
| 182 | } |
| 183 | } |
| 184 | fclose(fp); |
| 185 | } else { |
| 186 | wprintw(txtwin, "Cannot open:\n%s", argv[1]); |
| 187 | } |
| 188 | |
| 189 | wmove(txtwin, txt_y, txt_x); |
| 190 | actual = ShowFlavor(strwin, txtwin, flavor, limit); |
| 191 | while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) { |
| 192 | switch (ch) { |
| 193 | case KEY_DOWN: |
| 194 | case 'j': |
| 195 | if (txt_y < getmaxy(txtwin) - 1) { |
| 196 | MovePrompt(txtwin, actual, ++txt_y, txt_x); |
| 197 | } else { |
| 198 | beep(); |
| 199 | } |
| 200 | break; |
| 201 | case KEY_UP: |
| 202 | case 'k': |
| 203 | if (txt_y > base_y) { |
| 204 | MovePrompt(txtwin, actual, --txt_y, txt_x); |
| 205 | } else { |
| 206 | beep(); |
| 207 | } |
| 208 | break; |
| 209 | case KEY_LEFT: |
| 210 | case 'h': |
| 211 | if (txt_x > 0) { |
| 212 | MovePrompt(txtwin, actual, txt_y, --txt_x); |
| 213 | } else { |
| 214 | beep(); |
| 215 | } |
| 216 | break; |
| 217 | case KEY_RIGHT: |
| 218 | case 'l': |
| 219 | if (txt_x < getmaxx(txtwin) - 1) { |
| 220 | MovePrompt(txtwin, actual, txt_y, ++txt_x); |
| 221 | } else { |
| 222 | beep(); |
| 223 | } |
| 224 | break; |
| 225 | |
| 226 | case 'w': |
| 227 | test_getstr(level + 1, argv, strwin); |
| 228 | if (txtbox != 0) { |
| 229 | touchwin(txtbox); |
| 230 | wnoutrefresh(txtbox); |
| 231 | } else { |
| 232 | touchwin(txtwin); |
| 233 | wnoutrefresh(txtwin); |
| 234 | } |
| 235 | break; |
| 236 | |
| 237 | case '-': |
| 238 | if (limit > 0) { |
| 239 | actual = ShowFlavor(strwin, txtwin, flavor, --limit); |
| 240 | MovePrompt(txtwin, actual, txt_y, txt_x); |
| 241 | } else { |
| 242 | beep(); |
| 243 | } |
| 244 | break; |
| 245 | |
| 246 | case '+': |
| 247 | actual = ShowFlavor(strwin, txtwin, flavor, ++limit); |
| 248 | MovePrompt(txtwin, actual, txt_y, txt_x); |
| 249 | break; |
| 250 | |
| 251 | case '<': |
| 252 | if (flavor > 0) { |
| 253 | actual = ShowFlavor(strwin, txtwin, --flavor, limit); |
| 254 | MovePrompt(txtwin, actual, txt_y, txt_x); |
| 255 | } else { |
| 256 | beep(); |
| 257 | } |
| 258 | break; |
| 259 | |
| 260 | case '>': |
| 261 | if (flavor + 1 < eMaxFlavor) { |
| 262 | actual = ShowFlavor(strwin, txtwin, ++flavor, limit); |
| 263 | MovePrompt(txtwin, actual, txt_y, txt_x); |
| 264 | } else { |
| 265 | beep(); |
| 266 | } |
| 267 | break; |
| 268 | |
| 269 | case ':': |
| 270 | actual = ShowFlavor(strwin, txtwin, flavor, limit); |
| 271 | *buffer = '\0'; |
| 272 | rc = ERR; |
| 273 | echo(); |
| 274 | wattrset(txtwin, A_REVERSE); |
| 275 | switch (flavor) { |
| 276 | case eGetStr: |
| 277 | if (txtwin != stdscr) { |
| 278 | wmove(txtwin, txt_y, txt_x); |
| 279 | rc = wgetstr(txtwin, buffer); |
| 280 | } else { |
| 281 | move(txt_y, txt_x); |
| 282 | rc = getstr(buffer); |
| 283 | } |
| 284 | break; |
| 285 | case eGetNStr: |
| 286 | if (txtwin != stdscr) { |
| 287 | wmove(txtwin, txt_y, txt_x); |
| 288 | rc = wgetnstr(txtwin, buffer, limit); |
| 289 | } else { |
| 290 | move(txt_y, txt_x); |
| 291 | rc = getnstr(buffer, limit); |
| 292 | } |
| 293 | break; |
| 294 | case eMvGetStr: |
| 295 | if (txtwin != stdscr) { |
| 296 | rc = mvwgetstr(txtwin, txt_y, txt_x, buffer); |
| 297 | } else { |
| 298 | rc = mvgetstr(txt_y, txt_x, buffer); |
| 299 | } |
| 300 | break; |
| 301 | case eMvGetNStr: |
| 302 | if (txtwin != stdscr) { |
| 303 | rc = mvwgetnstr(txtwin, txt_y, txt_x, buffer, limit); |
| 304 | } else { |
| 305 | rc = mvgetnstr(txt_y, txt_x, buffer, limit); |
| 306 | } |
| 307 | break; |
| 308 | case eMaxFlavor: |
| 309 | break; |
| 310 | } |
| 311 | noecho(); |
| 312 | wattrset(txtwin, A_NORMAL); |
| 313 | wprintw(strwin, "%d:%s", rc, buffer); |
| 314 | wnoutrefresh(strwin); |
| 315 | break; |
| 316 | default: |
| 317 | beep(); |
| 318 | break; |
| 319 | } |
| 320 | doupdate(); |
| 321 | } |
| 322 | if (level > 1) { |
| 323 | delwin(txtwin); |
| 324 | delwin(txtbox); |
| 325 | } |
| 326 | return TRUE; |
| 327 | } |
| 328 | |
| 329 | int |
| 330 | main(int argc, char *argv[]) |
| 331 | { |
| 332 | WINDOW *chrbox; |
| 333 | WINDOW *strwin; |
| 334 | |
| 335 | setlocale(LC_ALL, ""); |
| 336 | |
| 337 | if (argc < 2) { |
| 338 | fprintf(stderr, "usage: %s file\n", argv[0]); |
| 339 | return EXIT_FAILURE; |
| 340 | } |
| 341 | |
| 342 | initscr(); |
| 343 | |
| 344 | chrbox = derwin(stdscr, BASE_Y, COLS, 0, 0); |
| 345 | box(chrbox, 0, 0); |
| 346 | wnoutrefresh(chrbox); |
| 347 | |
| 348 | strwin = derwin(chrbox, 4, COLS - 2, 1, 1); |
| 349 | |
| 350 | test_getstr(1, argv, strwin); |
| 351 | |
| 352 | endwin(); |
| 353 | ExitProgram(EXIT_SUCCESS); |
| 354 | } |
| 355 | |
| 356 | #else |
| 357 | int |
| 358 | main(void) |
| 359 | { |
| 360 | printf("This program requires the curses chgat function\n"); |
| 361 | ExitProgram(EXIT_FAILURE); |
| 362 | } |
| 363 | #endif |