release/src/router/libncurses/test/test_getstr.c

   1 /****************************************************************************
   2  * Copyright (c) 2007-2009,2012 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 1.10 2012/07/07 18:22:49 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 /*
  62  * Return-code is OK/ERR or a keyname.
  63  */
  64 static const char *
  65 ok_keyname(int code)
  66 {
  67     return ((code == OK) ? "OK" : ((code == ERR) ? "ERR" : keyname(code)));
  68 }
  69
  70 static bool
  71 Quit(int ch)
  72 {
  73     return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE);
  74 }
  75
  76 static int
  77 Remainder(WINDOW *txtwin)
  78 {
  79     int result = getmaxx(txtwin) - getcurx(txtwin);
  80     return (result > 0) ? result : 0;
  81 }
  82
  83 /*
  84  * Show a highlighted line in the place where input will happen.
  85  */
  86 static void
  87 ShowPrompt(WINDOW *txtwin, int limit)
  88 {
  89     wchgat(txtwin, limit, A_REVERSE, 0, NULL);
  90     wnoutrefresh(txtwin);
  91 }
  92
  93 static void
  94 MovePrompt(WINDOW *txtwin, int limit, int y, int x)
  95 {
  96     wchgat(txtwin, Remainder(txtwin), A_NORMAL, 0, NULL);
  97     wmove(txtwin, y, x);
  98     ShowPrompt(txtwin, limit);
  99 }
 100
 101 static int
 102 ShowFlavor(WINDOW *strwin, WINDOW *txtwin, int flavor, int limit)
 103 {
 104     const char *name = "?";
 105     bool limited = FALSE;
 106     bool wins = (txtwin != stdscr);
 107     int result;
 108
 109     switch (flavor) {
 110     case eGetStr:
 111         name = wins ? "wgetstr" : "getstr";
 112         break;
 113     case eGetNStr:
 114         limited = TRUE;
 115         name = wins ? "wgetnstr" : "getnstr";
 116         break;
 117     case eMvGetStr:
 118         name = wins ? "mvwgetstr" : "mvgetstr";
 119         break;
 120     case eMvGetNStr:
 121         limited = TRUE;
 122         name = wins ? "mvwgetnstr" : "mvgetnstr";
 123         break;
 124     case eMaxFlavor:
 125         break;
 126     }
 127
 128     wmove(strwin, 0, 0);
 129     werase(strwin);
 130
 131     if (limited) {
 132         wprintw(strwin, "%s(%d):", name, limit);
 133     } else {
 134         wprintw(strwin, "%s:", name);
 135     }
 136     result = limited ? limit : Remainder(txtwin);
 137     ShowPrompt(txtwin, result);
 138
 139     wnoutrefresh(strwin);
 140     return result;
 141 }
 142
 143 static int
 144 test_getstr(int level, char **argv, WINDOW *strwin)
 145 {
 146     WINDOW *txtbox = 0;
 147     WINDOW *txtwin = 0;
 148     FILE *fp;
 149     int ch;
 150     int rc;
 151     int txt_x = 0, txt_y = 0;
 152     int base_y;
 153     int flavor = 0;
 154     int limit = getmaxx(strwin) - 5;
 155     int actual;
 156
 157     char buffer[MAX_COLS];
 158
 159     if (argv[level] == 0) {
 160         beep();
 161         return FALSE;
 162     }
 163
 164     if (level > 1) {
 165         txtbox = newwin(LINES - BASE_Y, COLS - level, BASE_Y, level);
 166         box(txtbox, 0, 0);
 167         wnoutrefresh(txtbox);
 168
 169         txtwin = derwin(txtbox,
 170                         getmaxy(txtbox) - 2,
 171                         getmaxx(txtbox) - 2,
 172                         1, 1);
 173         base_y = 0;
 174     } else {
 175         txtwin = stdscr;
 176         base_y = BASE_Y;
 177     }
 178
 179     keypad(txtwin, TRUE);       /* enable keyboard mapping */
 180     (void) cbreak();            /* take input chars one at a time, no wait for \n */
 181     (void) noecho();            /* don't echo input */
 182
 183     txt_y = base_y;
 184     txt_x = 0;
 185     wmove(txtwin, txt_y, txt_x);
 186
 187     if ((fp = fopen(argv[level], "r")) != 0) {
 188         while ((ch = fgetc(fp)) != EOF) {
 189             if (waddch(txtwin, UChar(ch)) != OK) {
 190                 break;
 191             }
 192         }
 193         fclose(fp);
 194     } else {
 195         wprintw(txtwin, "Cannot open:\n%s", argv[1]);
 196     }
 197
 198     wmove(txtwin, txt_y, txt_x);
 199     actual = ShowFlavor(strwin, txtwin, flavor, limit);
 200     while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) {
 201         switch (ch) {
 202         case KEY_DOWN:
 203         case 'j':
 204             if (txt_y < getmaxy(txtwin) - 1) {
 205                 MovePrompt(txtwin, actual, ++txt_y, txt_x);
 206             } else {
 207                 beep();
 208             }
 209             break;
 210         case KEY_UP:
 211         case 'k':
 212             if (txt_y > base_y) {
 213                 MovePrompt(txtwin, actual, --txt_y, txt_x);
 214             } else {
 215                 beep();
 216             }
 217             break;
 218         case KEY_LEFT:
 219         case 'h':
 220             if (txt_x > 0) {
 221                 MovePrompt(txtwin, actual, txt_y, --txt_x);
 222             } else {
 223                 beep();
 224             }
 225             break;
 226         case KEY_RIGHT:
 227         case 'l':
 228             if (txt_x < getmaxx(txtwin) - 1) {
 229                 MovePrompt(txtwin, actual, txt_y, ++txt_x);
 230             } else {
 231                 beep();
 232             }
 233             break;
 234
 235         case 'w':
 236             test_getstr(level + 1, argv, strwin);
 237             if (txtbox != 0) {
 238                 touchwin(txtbox);
 239                 wnoutrefresh(txtbox);
 240             } else {
 241                 touchwin(txtwin);
 242                 wnoutrefresh(txtwin);
 243             }
 244             break;
 245
 246         case '-':
 247             if (limit > 0) {
 248                 actual = ShowFlavor(strwin, txtwin, flavor, --limit);
 249                 MovePrompt(txtwin, actual, txt_y, txt_x);
 250             } else {
 251                 beep();
 252             }
 253             break;
 254
 255         case '+':
 256             actual = ShowFlavor(strwin, txtwin, flavor, ++limit);
 257             MovePrompt(txtwin, actual, txt_y, txt_x);
 258             break;
 259
 260         case '<':
 261             if (flavor > 0) {
 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             if (flavor + 1 < eMaxFlavor) {
 271                 actual = ShowFlavor(strwin, txtwin, ++flavor, limit);
 272                 MovePrompt(txtwin, actual, txt_y, txt_x);
 273             } else {
 274                 beep();
 275             }
 276             break;
 277
 278         case ':':
 279             actual = ShowFlavor(strwin, txtwin, flavor, limit);
 280             *buffer = '\0';
 281             rc = ERR;
 282             echo();
 283             (void) wattrset(txtwin, A_REVERSE);
 284             switch (flavor) {
 285             case eGetStr:
 286                 if (txtwin != stdscr) {
 287                     wmove(txtwin, txt_y, txt_x);
 288                     rc = wgetstr(txtwin, buffer);
 289                 } else {
 290                     move(txt_y, txt_x);
 291                     rc = getstr(buffer);
 292                 }
 293                 break;
 294             case eGetNStr:
 295                 if (txtwin != stdscr) {
 296                     wmove(txtwin, txt_y, txt_x);
 297                     rc = wgetnstr(txtwin, buffer, limit);
 298                 } else {
 299                     move(txt_y, txt_x);
 300                     rc = getnstr(buffer, limit);
 301                 }
 302                 break;
 303             case eMvGetStr:
 304                 if (txtwin != stdscr) {
 305                     rc = mvwgetstr(txtwin, txt_y, txt_x, buffer);
 306                 } else {
 307                     rc = mvgetstr(txt_y, txt_x, buffer);
 308                 }
 309                 break;
 310             case eMvGetNStr:
 311                 if (txtwin != stdscr) {
 312                     rc = mvwgetnstr(txtwin, txt_y, txt_x, buffer, limit);
 313                 } else {
 314                     rc = mvgetnstr(txt_y, txt_x, buffer, limit);
 315                 }
 316                 break;
 317             case eMaxFlavor:
 318                 break;
 319             }
 320             noecho();
 321             (void) wattrset(txtwin, A_NORMAL);
 322             wprintw(strwin, "%s:%s", ok_keyname(rc), buffer);
 323             wnoutrefresh(strwin);
 324             break;
 325         default:
 326             beep();
 327             break;
 328         }
 329         doupdate();
 330     }
 331     if (level > 1) {
 332         delwin(txtwin);
 333         delwin(txtbox);
 334     }
 335     return TRUE;
 336 }
 337
 338 int
 339 main(int argc, char *argv[])
 340 {
 341     WINDOW *chrbox;
 342     WINDOW *strwin;
 343
 344     setlocale(LC_ALL, "");
 345
 346     if (argc < 2) {
 347         fprintf(stderr, "usage: %s file\n", argv[0]);
 348         return EXIT_FAILURE;
 349     }
 350
 351     initscr();
 352
 353     chrbox = derwin(stdscr, BASE_Y, COLS, 0, 0);
 354     box(chrbox, 0, 0);
 355     wnoutrefresh(chrbox);
 356
 357     strwin = derwin(chrbox, 4, COLS - 2, 1, 1);
 358
 359     test_getstr(1, argv, strwin);
 360
 361     endwin();
 362     ExitProgram(EXIT_SUCCESS);
 363 }
 364
 365 #else
 366 int
 367 main(void)
 368 {
 369     printf("This program requires the curses chgat function\n");
 370     ExitProgram(EXIT_FAILURE);
 371 }
 372 #endif