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

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  28 /*
  29  * $Id: test_instr.c,v 1.5 2010/05/01 19:13:46 tom Exp $
  30  *
  31  * Author: Thomas E Dickey
  32  *
  33  * Demonstrate the instr functions from the curses library.
  34
  35        int instr(char *str);
  36        int innstr(char *str, int n);
  37        int winstr(WINDOW *win, char *str);
  38        int winnstr(WINDOW *win, char *str, int n);
  39        int mvinstr(int y, int x, char *str);
  40        int mvinnstr(int y, int x, char *str, int n);
  41        int mvwinstr(WINDOW *win, int y, int x, char *str);
  42        int mvwinnstr(WINDOW *win, int y, int x, char *str, int n);
  43  */
  44
  45 #include <test.priv.h>
  46
  47 #define BASE_Y 6
  48 #define MAX_COLS 1024
  49
  50 static bool
  51 Quit(int ch)
  52 {
  53     return (ch == ERR || ch == 'q' || ch == QUIT || ch == ESCAPE);
  54 }
  55
  56 static void
  57 show_1st(WINDOW *win, int line, char *buffer)
  58 {
  59     MvWAddStr(win, line, 5, buffer);
  60 }
  61
  62 static void
  63 showmore(WINDOW *win, int line, char *buffer)
  64 {
  65     wmove(win, line, 0);
  66     wclrtoeol(win);
  67     show_1st(win, line, buffer);
  68 }
  69
  70 static int
  71 test_inchs(int level, char **argv, WINDOW *chrwin, WINDOW *strwin)
  72 {
  73     WINDOW *txtbox = 0;
  74     WINDOW *txtwin = 0;
  75     FILE *fp;
  76     int ch;
  77     int txt_x = 0, txt_y = 0;
  78     int base_y;
  79     int limit = getmaxx(strwin) - 5;
  80
  81     char buffer[MAX_COLS];
  82
  83     if (argv[level] == 0) {
  84         beep();
  85         return FALSE;
  86     }
  87
  88     if (level > 1) {
  89         txtbox = newwin(LINES - BASE_Y, COLS - level, BASE_Y, level);
  90         box(txtbox, 0, 0);
  91         wnoutrefresh(txtbox);
  92
  93         txtwin = derwin(txtbox,
  94                         getmaxy(txtbox) - 2,
  95                         getmaxx(txtbox) - 2,
  96                         1, 1);
  97         base_y = 0;
  98     } else {
  99         txtwin = stdscr;
 100         base_y = BASE_Y;
 101     }
 102
 103     keypad(txtwin, TRUE);       /* enable keyboard mapping */
 104     (void) cbreak();            /* take input chars one at a time, no wait for \n */
 105     (void) noecho();            /* don't echo input */
 106
 107     txt_y = base_y;
 108     txt_x = 0;
 109     wmove(txtwin, txt_y, txt_x);
 110
 111     if ((fp = fopen(argv[level], "r")) != 0) {
 112         while ((ch = fgetc(fp)) != EOF) {
 113             if (waddch(txtwin, UChar(ch)) != OK) {
 114                 break;
 115             }
 116         }
 117         fclose(fp);
 118     } else {
 119         wprintw(txtwin, "Cannot open:\n%s", argv[1]);
 120     }
 121
 122     while (!Quit(ch = mvwgetch(txtwin, txt_y, txt_x))) {
 123         switch (ch) {
 124         case KEY_DOWN:
 125         case 'j':
 126             if (txt_y < getmaxy(txtwin) - 1)
 127                 txt_y++;
 128             else
 129                 beep();
 130             break;
 131         case KEY_UP:
 132         case 'k':
 133             if (txt_y > base_y)
 134                 txt_y--;
 135             else
 136                 beep();
 137             break;
 138         case KEY_LEFT:
 139         case 'h':
 140             if (txt_x > 0)
 141                 txt_x--;
 142             else
 143                 beep();
 144             break;
 145         case KEY_RIGHT:
 146         case 'l':
 147             if (txt_x < getmaxx(txtwin) - 1)
 148                 txt_x++;
 149             else
 150                 beep();
 151             break;
 152         case 'w':
 153             test_inchs(level + 1, argv, chrwin, strwin);
 154             if (txtbox != 0) {
 155                 touchwin(txtbox);
 156                 wnoutrefresh(txtbox);
 157             } else {
 158                 touchwin(txtwin);
 159                 wnoutrefresh(txtwin);
 160             }
 161             break;
 162         case '-':
 163             if (limit > 0) {
 164                 --limit;
 165             } else {
 166                 beep();
 167             }
 168             break;
 169         case '+':
 170             ++limit;
 171             break;
 172         default:
 173             beep();
 174             break;
 175         }
 176
 177         MvWPrintw(chrwin, 0, 0, "line:");
 178         wclrtoeol(chrwin);
 179
 180         if (txtwin != stdscr) {
 181             wmove(txtwin, txt_y, txt_x);
 182
 183             if (winstr(txtwin, buffer) != ERR) {
 184                 show_1st(chrwin, 0, buffer);
 185             }
 186             if (mvwinstr(txtwin, txt_y, txt_x, buffer) != ERR) {
 187                 showmore(chrwin, 1, buffer);
 188             }
 189         } else {
 190             move(txt_y, txt_x);
 191
 192             if (instr(buffer) != ERR) {
 193                 show_1st(chrwin, 0, buffer);
 194             }
 195             if (mvinstr(txt_y, txt_x, buffer) != ERR) {
 196                 showmore(chrwin, 1, buffer);
 197             }
 198         }
 199         wnoutrefresh(chrwin);
 200
 201         MvWPrintw(strwin, 0, 0, "%4d:", limit);
 202         wclrtobot(strwin);
 203
 204         if (txtwin != stdscr) {
 205             wmove(txtwin, txt_y, txt_x);
 206             if (winnstr(txtwin, buffer, limit) != ERR) {
 207                 show_1st(strwin, 0, buffer);
 208             }
 209
 210             if (mvwinnstr(txtwin, txt_y, txt_x, buffer, limit) != ERR) {
 211                 showmore(strwin, 1, buffer);
 212             }
 213         } else {
 214             move(txt_y, txt_x);
 215             if (innstr(buffer, limit) != ERR) {
 216                 show_1st(strwin, 0, buffer);
 217             }
 218
 219             if (mvinnstr(txt_y, txt_x, buffer, limit) != ERR) {
 220                 showmore(strwin, 1, buffer);
 221             }
 222         }
 223
 224         wnoutrefresh(strwin);
 225     }
 226     if (level > 1) {
 227         delwin(txtwin);
 228         delwin(txtbox);
 229     }
 230     return TRUE;
 231 }
 232
 233 int
 234 main(int argc, char *argv[])
 235 {
 236     WINDOW *chrbox;
 237     WINDOW *chrwin;
 238     WINDOW *strwin;
 239
 240     setlocale(LC_ALL, "");
 241
 242     if (argc < 2) {
 243         fprintf(stderr, "usage: %s file\n", argv[0]);
 244         return EXIT_FAILURE;
 245     }
 246
 247     initscr();
 248
 249     chrbox = derwin(stdscr, BASE_Y, COLS, 0, 0);
 250     box(chrbox, 0, 0);
 251     wnoutrefresh(chrbox);
 252
 253     chrwin = derwin(chrbox, 2, COLS - 2, 1, 1);
 254     strwin = derwin(chrbox, 2, COLS - 2, 3, 1);
 255
 256     test_inchs(1, argv, chrwin, strwin);
 257
 258     endwin();
 259     ExitProgram(EXIT_SUCCESS);
 260 }