payloads/libpayload/curses/PDCurses/demos/tuidemo.c

   1 /*
   2  * $Id: tuidemo.c,v 1.22 2008/07/14 12:35:23 wmcbrine Exp $
   3  *
   4  * Author : P.J. Kunst <kunst@prl.philips.nl>
   5  * Date   : 25-02-93
   6  *
   7  * Purpose: This program demonstrates the use of the 'curses' library
   8  *          for the creation of (simple) menu-operated programs.
   9  *          In the PDCurses version, use is made of colors for the
  10  *          highlighting of subwindows (title bar, status bar etc).
  11  *
  12  * Acknowledgement: some ideas were borrowed from Mark Hessling's
  13  *                  version of the 'testcurs' program.
  14  */
  15
  16 #include <stdio.h>
  17 #include <stdlib.h>
  18 #include <string.h>
  19 #include <locale.h>
  20 #include "tui.h"
  21
  22 /* change this if source at other location */
  23
  24 #ifdef XCURSES
  25 # define FNAME  "../demos/tui.c"
  26 #else
  27 # define FNAME  "..\\demos\\tui.c"
  28 #endif
  29
  30 /**************************** strings entry box ***************************/
  31
  32 void address(void)
  33 {
  34     char *fieldname[6] =
  35     {
  36         "Name", "Street", "City", "State", "Country", (char *)0
  37     };
  38
  39     char *fieldbuf[5];
  40     WINDOW *wbody = bodywin();
  41     int i, field = 50;
  42
  43     for (i = 0; i < 5; i++)
  44         fieldbuf[i] = calloc(1, field + 1);
  45
  46     if (getstrings(fieldname, fieldbuf, field) != KEY_ESC)
  47     {
  48         for (i = 0; fieldname[i]; i++)
  49             wprintw(wbody, "%10s : %s\n",
  50                 fieldname[i], fieldbuf[i]);
  51
  52         wrefresh(wbody);
  53     }
  54
  55     for (i = 0; i < 5; i++)
  56         free(fieldbuf[i]);
  57 }
  58
  59 /**************************** string entry box ****************************/
  60
  61 char *getfname(char *desc, char *fname, int field)
  62 {
  63     char *fieldname[2];
  64     char *fieldbuf[1];
  65
  66     fieldname[0] = desc;
  67     fieldname[1] = 0;
  68     fieldbuf[0] = fname;
  69
  70     return (getstrings(fieldname, fieldbuf, field) == KEY_ESC) ? NULL : fname;
  71 }
  72
  73 /**************************** a very simple file browser ******************/
  74
  75 void showfile(char *fname)
  76 {
  77     int i, bh = bodylen();
  78     FILE *fp;
  79     char buf[MAXSTRLEN];
  80     bool ateof = FALSE;
  81
  82     statusmsg("FileBrowser: Hit key to continue, Q to quit");
  83
  84     if ((fp = fopen(fname, "r")) != NULL)   /* file available? */
  85     {
  86         while (!ateof)
  87         {
  88             clsbody();
  89
  90             for (i = 0; i < bh - 1 && !ateof; i++)
  91             {
  92                 buf[0] = '\0';
  93                 fgets(buf, MAXSTRLEN, fp);
  94
  95                 if (strlen(buf))
  96                     bodymsg(buf);
  97                 else
  98                     ateof = TRUE;
  99             }
 100
 101             switch (waitforkey())
 102             {
 103             case 'Q':
 104             case 'q':
 105             case 0x1b:
 106                 ateof = TRUE;
 107             }
 108         }
 109
 110         fclose(fp);
 111     }
 112     else
 113     {
 114         sprintf(buf, "ERROR: file '%s' not found", fname);
 115         errormsg(buf);
 116     }
 117 }
 118
 119 /***************************** forward declarations ***********************/
 120
 121 void sub0(void), sub1(void), sub2(void), sub3(void);
 122 void func1(void), func2(void);
 123 void subfunc1(void), subfunc2(void);
 124 void subsub(void);
 125
 126 /***************************** menus initialization ***********************/
 127
 128 menu MainMenu[] =
 129 {
 130     { "Asub", sub0, "Go inside first submenu" },
 131     { "Bsub", sub1, "Go inside second submenu" },
 132     { "Csub", sub2, "Go inside third submenu" },
 133     { "Dsub", sub3, "Go inside fourth submenu" },
 134     { "", (FUNC)0, "" }   /* always add this as the last item! */
 135 };
 136
 137 menu SubMenu0[] =
 138 {
 139     { "Exit", DoExit, "Terminate program" },
 140     { "", (FUNC)0, "" }
 141 };
 142
 143 menu SubMenu1[] =
 144 {
 145     { "OneBeep", func1, "Sound one beep" },
 146     { "TwoBeeps", func2, "Sound two beeps" },
 147     { "", (FUNC)0, "" }
 148 };
 149
 150 menu SubMenu2[] =
 151 {
 152     { "Browse", subfunc1, "Source file lister" },
 153     { "Input", subfunc2, "Interactive file lister" },
 154     { "Address", address, "Get address data" },
 155     { "", (FUNC)0, "" }
 156 };
 157
 158 menu SubMenu3[] =
 159 {
 160     { "SubSub", subsub, "Go inside sub-submenu" },
 161     { "", (FUNC)0, "" }
 162 };
 163
 164 /***************************** main menu functions ************************/
 165
 166 void sub0(void)
 167 {
 168     domenu(SubMenu0);
 169 }
 170
 171 void sub1(void)
 172 {
 173     domenu(SubMenu1);
 174 }
 175
 176 void sub2(void)
 177 {
 178     domenu(SubMenu2);
 179 }
 180
 181 void sub3(void)
 182 {
 183     domenu(SubMenu3);
 184 }
 185
 186 /***************************** submenu1 functions *************************/
 187
 188 void func1(void)
 189 {
 190     beep();
 191     bodymsg("One beep! ");
 192 }
 193
 194 void func2(void)
 195 {
 196     beep();
 197     bodymsg("Two beeps! ");
 198     beep();
 199 }
 200
 201 /***************************** submenu2 functions *************************/
 202
 203 void subfunc1(void)
 204 {
 205     showfile(FNAME);
 206 }
 207
 208 void subfunc2(void)
 209 {
 210     char fname[MAXSTRLEN];
 211
 212     strcpy(fname, FNAME);
 213     if (getfname ("File to browse:", fname, 50))
 214         showfile(fname);
 215 }
 216
 217 /***************************** submenu3 functions *************************/
 218
 219 void subsub(void)
 220 {
 221     domenu(SubMenu2);
 222 }
 223
 224 /***************************** start main menu  ***************************/
 225
 226 int main(int argc, char **argv)
 227 {
 228     setlocale(LC_ALL, "");
 229
 230     startmenu(MainMenu, "TUI - 'textual user interface' demonstration program");
 231
 232     return 0;
 233 }