text: /****************************************************************************
   * Copyright (c) 2013-2014,2017 Free Software Foundation, Inc.              *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
   * copy of this software and associated documentation files (the            *
   * "Software"), to deal in the Software without restriction, including      *
   * without limitation the rights to use, copy, modify, merge, publish,      *
   * distribute, distribute with modifications, sublicense, and/or sell       *
   * copies of the Software, and to permit persons to whom the Software is    *
   * furnished to do so, subject to the following conditions:                 *
   *                                                                          *
   * The above copyright notice and this permission notice shall be included  *
   * in all copies or substantial portions of the Software.                   *
   *                                                                          *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
   * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
   *                                                                          *
   * Except as contained in this notice, the name(s) of the above copyright   *
   * holders shall not be used in advertising or otherwise to promote the     *
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************/
  
  /****************************************************************************
   *   Author:  Gaute Hope, 2013                                              *
   ****************************************************************************/
  
  /*
   * $Id: form_driver_w.c,v 1.15 2017/04/15 20:41:35 tom Exp $
   *
   * Test form_driver_w (int, int, wchar_t), a wide char aware
   * replacement of form_driver.
   */
  
  #include "test.priv.h"
  #include "popup_msg.h"
  
  #if USE_WIDEC_SUPPORT && USE_LIBFORM && (defined(NCURSES_VERSION_PATCH) && NCURSES_VERSION_PATCH >= 20131207)
  
  #include <form.h>
  
  int
  main(void)
  {
      static const char *help[] =
      {
  	"Commands:",
  	"  ^D,^Q,ESC           - quit program",
  	"  <Tab>,<Down>        - move to next field",
  	"  <BackTab>,<Up>      - move to previous field",
  	0
      };
  
  #define NUM_FIELDS 3
  #define MyRow(n) (4 + (n) * 2)
  #define MyCol(n) 10
      FIELD *field[NUM_FIELDS + 1];
      FORM *my_form;
      bool done = FALSE;
      int n;
  
      setlocale(LC_ALL, "");
  
      /* Initialize curses */
      initscr();
      cbreak();
      noecho();
      keypad(stdscr, TRUE);
  
      /* Initialize the fields */
      for (n = 0; n < NUM_FIELDS; ++n) {
  	field[n] = new_field(1, 10, MyRow(n), 18, 0, 0);
  	set_field_back(field[n], A_UNDERLINE);
  	/* Print a line for the option  */
  	field_opts_off(field[n], O_AUTOSKIP);
  	/* Don't go to next field when this is filled */
      }
      field[n] = NULL;
  
      /* Create the form and post it */
      my_form = new_form(field);
      post_form(my_form);
      refresh();
  
      for (n = 0; n < NUM_FIELDS; ++n) {
  	mvprintw(MyRow(n), MyCol(n), "Value %d:", n + 1);
      }
  
      /* Loop through to get user requests */
      while (!done) {
  	wint_t ch;
  	int ret = get_wch(&ch);
  
  	mvprintw(MyRow(NUM_FIELDS),
  		 MyCol(NUM_FIELDS),
  		 "Got %d (%#x), type: %s",
  		 (int) ch,
  		 (int) ch,
  		 (ret == KEY_CODE_YES)
  		 ? "KEY_CODE_YES"
  		 : ((ret == OK)
  		    ? "OK"
  		    : ((ret == ERR)
  		       ? "ERR"
  		       : "?")));
  	clrtoeol();
  
  	switch (ret) {
  	case KEY_CODE_YES:
  	    switch (ch) {
  	    case KEY_DOWN:
  		/* Go to next field */
  		form_driver_w(my_form, KEY_CODE_YES, REQ_NEXT_FIELD);
  		/* Go to the end of the present buffer */
  		/* Leaves nicely at the last character */
  		form_driver_w(my_form, KEY_CODE_YES, REQ_END_LINE);
  		break;
  	    case KEY_BTAB:
  	    case KEY_UP:
  		/* Go to previous field */
  		form_driver_w(my_form, KEY_CODE_YES, REQ_PREV_FIELD);
  		form_driver_w(my_form, KEY_CODE_YES, REQ_END_LINE);
  		break;
  	    default:
  		break;
  	    }
  	    break;
  	case OK:
  	    switch (ch) {
  	    case CTRL('D'):
  	    case QUIT:
  	    case ESCAPE:
  		done = TRUE;
  		break;
  	    case '\t':
  		form_driver_w(my_form, KEY_CODE_YES, REQ_NEXT_FIELD);
  		form_driver_w(my_form, KEY_CODE_YES, REQ_END_LINE);
  		break;
  	    case HELP_KEY_1:
  		popup_msg(form_win(my_form), help);
  		break;
  	    default:
  		form_driver_w(my_form, OK, (wchar_t) ch);
  		break;
  	    }
  	    break;
  	}
      }
  
      /* Un post form and free the memory */
      unpost_form(my_form);
      free_form(my_form);
      for (n = 0; n < NUM_FIELDS; ++n) {
  	free_field(field[n]);
      }
  
      endwin();
      ExitProgram(EXIT_SUCCESS);
  }
  
  #else
  int
  main(void)
  {
      printf("This program requires the wide-ncurses and forms library\n");
      ExitProgram(EXIT_FAILURE);
  }
  #endif /* USE_WIDEC_SUPPORT */
  