/****************************************************************************
 * apps/examples/pdcurses/testcurs_main.c
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.  The
 * ASF licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the
 * License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 ****************************************************************************/

/****************************************************************************
 * Adapted from the original public domain pdcurses by Gregory Nutt
 ****************************************************************************/

/****************************************************************************
 * Included Files
 ****************************************************************************/

#include <stdio.h>
#include <ctype.h>
#include <string.h>

#include "graphics/curses.h"

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

#ifdef WACS_S1
#  define HAVE_WIDE 1
#else
#  define HAVE_WIDE 0
#endif

#include <locale.h>

#if HAVE_WIDE
#  include <wchar.h>
#endif

#ifdef A_COLOR
#  define HAVE_COLOR 1
#else
#  define HAVE_COLOR 0
#endif

/* Set to non-zero if you want to test the PDCurses clipboard */

#define HAVE_CLIPBOARD 0

/****************************************************************************
 * Private Types
 ****************************************************************************/

struct commands
{
  const char *text;
  void (*function) (WINDOW *);
};

typedef struct commands COMMAND;

/****************************************************************************
 * Private Function Prototypes
 ****************************************************************************/

static void continue1(WINDOW *win);
#if HAVE_CLIPBOARD || HAVE_WIDE
static void continue2(void);
#endif

static void input_test(WINDOW *);
static void scroll_test(WINDOW *);
static void intro_test(WINDOW *);
static int init_test(WINDOW **, int, char **);
static void output_test(WINDOW *);
static void pad_test(WINDOW *);
static void acs_test(WINDOW *);

#if HAVE_COLOR
static void color_test(WINDOW *);
#endif

static void resize_test(WINDOW *);

#if HAVE_CLIPBOARD
static void clipboard_test(WINDOW *);
#endif

#if HAVE_WIDE
static void wide_test(WINDOW *);
#endif

static void display_menu(int, int);

static const COMMAND command[] =
{
  {"Intro Test", intro_test},
  {"Pad Test", pad_test},
  {"Resize Test", resize_test},
  {"Scroll Test", scroll_test},
  {"Input Test", input_test},
  {"Output Test", output_test},
  {"ACS Test", acs_test}
#if HAVE_COLOR
  , {"Color Test", color_test}
#endif
#if HAVE_CLIPBOARD
  , {"Clipboard Test", clipboard_test}
#endif
#if HAVE_WIDE
  , {"Wide Input", wide_test}
#endif
};

#define MAX_OPTIONS (sizeof(command) / sizeof(COMMAND))

static int height;
static int width;

static const char *acs_names[] =
{
  "ACS_ULCORNER", "ACS_URCORNER", "ACS_LLCORNER", "ACS_LRCORNER",
  "ACS_LTEE", "ACS_RTEE", "ACS_TTEE", "ACS_BTEE", "ACS_HLINE",
  "ACS_VLINE", "ACS_PLUS",

  "ACS_S1", "ACS_S9", "ACS_DIAMOND", "ACS_CKBOARD", "ACS_DEGREE",
  "ACS_PLMINUS", "ACS_BULLET",

  "ACS_LARROW", "ACS_RARROW", "ACS_UARROW", "ACS_DARROW",
  "ACS_BOARD", "ACS_LANTERN", "ACS_BLOCK"
#ifdef ACS_S3
   , "ACS_S3", "ACS_S7", "ACS_LEQUAL", "ACS_GEQUAL",
  "ACS_PI", "ACS_NEQUAL", "ACS_STERLING"
#endif
};

#ifdef ACS_S3
#  define ACSNUM 32
#else
#  define ACSNUM 25
#endif

#if HAVE_WIDE
static const cchar_t *wacs_values[] =
{
  WACS_ULCORNER, WACS_URCORNER, WACS_LLCORNER, WACS_LRCORNER,
  WACS_LTEE, WACS_RTEE, WACS_TTEE, WACS_BTEE, WACS_HLINE,
  WACS_VLINE, WACS_PLUS,

  WACS_S1, WACS_S9, WACS_DIAMOND, WACS_CKBOARD, WACS_DEGREE,
  WACS_PLMINUS, WACS_BULLET,

  WACS_LARROW, WACS_RARROW, WACS_UARROW, WACS_DARROW, WACS_BOARD,
  WACS_LANTERN, WACS_BLOCK
#ifdef WACS_S3
  , WACS_S3, WACS_S7, WACS_LEQUAL, WACS_GEQUAL, WACS_PI,
  WACS_NEQUAL, WACS_STERLING
#endif
};

static const wchar_t russian[] =
{
    0x0420, 0x0443, 0x0441, 0x0441, 0x043a, 0x0438, 0x0439, L' ',
    0x044f, 0x0437, 0x044b, 0x043a, 0
};

static const wchar_t greek[] =
{
    0x0395, 0x03bb, 0x03bb, 0x03b7, 0x03bd, 0x03b9, 0x03ba, 0x03ac, 0
};

static const wchar_t georgian[] =
{
  0x10e5, 0x10d0, 0x10e0, 0x10d7, 0x10e3, 0x10da, 0x10d8, L' ', 0x10d4,
  0x10dc, 0x10d0, 0
};
#endif

#if HAVE_COLOR
static const short colors[] =
{
  COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE,
  COLOR_CYAN, COLOR_MAGENTA, COLOR_YELLOW, COLOR_WHITE
};

static const char *colornames[] =
{
  "COLOR_BLACK", "COLOR_RED", "COLOR_GREEN", "COLOR_BLUE",
  "COLOR_CYAN", "COLOR_MAGENTA", "COLOR_YELLOW", "COLOR_WHITE"
};
#endif

/****************************************************************************
 * Private Functions
 ****************************************************************************/

static void continue1(WINDOW *win)
{
  mvwaddstr(win, 10, 1, " Press any key to continue");
  wrefresh(win);
  raw();
  wgetch(win);
}

#if HAVE_CLIPBOARD || HAVE_WIDE
static void continue2(void)
{
  move(LINES - 1, 1);
  clrtoeol();
  mvaddstr(LINES - 2, 1, " Press any key to continue");
  refresh();
  raw();
  getch();
}
#endif

static int init_test(WINDOW ** win, int argc, char *argv[])
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

  traceon();
  initscr();
#ifdef A_COLOR
  if (has_colors())
    {
      start_color();
    }
#endif
  /* Create a drawing window */

  width  = 60;
  height = 13;

  *win = newwin(height, width, (LINES - height) / 2, (COLS - width) / 2);
  if (*win == NULL)
    {
      endwin();
      return 1;
    }

  return 0;
}

static void intro_test(WINDOW *win)
{
  werase(win);
  wmove(win, height / 2 - 5, width / 2);
  wvline(win, ACS_VLINE, 10);
  wmove(win, height / 2, width / 2 - 10);
  whline(win, ACS_HLINE, 20);
  continue1(win);

  beep();
  werase(win);

  box(win, ACS_VLINE, ACS_HLINE);
  wrefresh(win);

  cbreak();
  mvwaddstr(win, 1, 1,
            "You should have a rectangle in the middle of the screen");
  mvwaddstr(win, 2, 1, "You should have heard a beep");
  continue1(win);

  flash();
  mvwaddstr(win, 3, 1, "You should have seen a flash");
  continue1(win);
}

static void scroll_test(WINDOW *win)
{
  int oldy;
  int i;

  werase(win);
  mvwaddstr(win, height - 2, 1, "The window will now scroll slowly");
  box(win, ACS_VLINE, ACS_HLINE);
  wrefresh(win);
  scrollok(win, true);
  napms(500);

  for (i = 1; i <= height; i++)
    {
      napms(150);
      scroll(win);
      wrefresh(win);
    };

  oldy = getmaxy(win);
  mvwaddstr(win, 6, 1, "The top of the window will scroll");
  wmove(win, 1, 1);
  wsetscrreg(win, 0, 4);
  box(win, ACS_VLINE, ACS_HLINE);
  wrefresh(win);

  for (i = 1; i <= 5; i++)
    {
      napms(500);
      scroll(win);
      wrefresh(win);
    }

  mvwaddstr(win, 3, 1, "The bottom of the window will scroll");
  wmove(win, 8, 1);
  wsetscrreg(win, 5, --oldy);
  box(win, ACS_VLINE, ACS_HLINE);
  wrefresh(win);

  for (i = 5; i <= oldy; i++)
    {
      napms(300);
      wscrl(win, -1);
      wrefresh(win);
    }

  wsetscrreg(win, 0, oldy);
}

static void input_test(WINDOW *win)
{
  int w;
  int h;
  int bx;
  int by;
  int sw;
  int sh;
  int i;
  int c;
  int num = 0;
  char buffer[80];
  WINDOW *subWin;
  static const char spinner[4] = "/-\\|";
  int spinner_count = 0;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

  wclear(win);

  getmaxyx(win, h, w);
  getbegyx(win, by, bx);

  sw = w / 3;
  sh = h / 3;

  if ((subWin = subwin(win, sh, sw, by + h - sh - 2, bx + w - sw - 2)) == NULL)
    {
      return;
    }

#ifdef A_COLOR
  if (has_colors())
    {
      init_pair(2, COLOR_WHITE, COLOR_RED);
      wbkgd(subWin, COLOR_PAIR(2) | A_BOLD);
    }
  else
#endif
    {
      wbkgd(subWin, A_BOLD);
    }

  box(subWin, ACS_VLINE, ACS_HLINE);
  wrefresh(win);

  nocbreak();

  wclear(win);
  mvwaddstr(win, 1, 1, "Press keys (or mouse buttons) to show their names");
  mvwaddstr(win, 2, 1, "Press spacebar to finish");
  wrefresh(win);

  keypad(win, true);
  raw();
  noecho();

  wtimeout(win, 200);

  mouse_set(ALL_MOUSE_EVENTS);
  PDC_save_key_modifiers(true);
  PDC_return_key_modifiers(true);
  curs_set(0);                  /* turn cursor off */

  while (1)
    {
      while (1)
        {
          c = wgetch(win);

          if (c == ERR)
            {
              spinner_count++;
              if (spinner_count == 4)
                {
                  spinner_count = 0;
                }

              mvwaddch(win, 3, 3, spinner[spinner_count]);
              wrefresh(win);
            }
          else
            {
              break;
            }
        }

      wmove(win, 4, 18);
      wclrtoeol(win);
      mvwaddstr(win, 3, 5, "Key Pressed: ");
      wclrtoeol(win);

      if (c >= KEY_MIN)
        {
          wprintw(win, "%s", keyname(c));
        }
      else if (isprint(c))
        {
          wprintw(win, "%c", c);
        }
      else
        {
          wprintw(win, "%s", unctrl(c));
        }

      if (c == KEY_MOUSE)
        {
          int button = 0;
          request_mouse_pos();

          if (BUTTON_CHANGED(1))
            {
              button = 1;
            }
          else if (BUTTON_CHANGED(2))
            {
              button = 2;
            }
          else if (BUTTON_CHANGED(3))
            {
              button = 3;
            }

          if (button && (BUTTON_STATUS(button) & BUTTON_MODIFIER_MASK))
            {
              waddstr(win, " Modifier(s):");

              if (BUTTON_STATUS(button) & BUTTON_SHIFT)
                {
                  waddstr(win, " SHIFT");
                }

              if (BUTTON_STATUS(button) & BUTTON_CONTROL)
                {
                  waddstr(win, " CONTROL");
                }

              if (BUTTON_STATUS(button) & BUTTON_ALT)
                {
                  waddstr(win, " ALT");
                }
            }

          wmove(win, 4, 18);
          wclrtoeol(win);
          wprintw(win, "Button %d: ", button);

          if (MOUSE_MOVED)
            {
              waddstr(win, "moved: ");
            }
          else if (MOUSE_WHEEL_UP)
            {
              waddstr(win, "wheel up: ");
            }
          else if (MOUSE_WHEEL_DOWN)
            {
              waddstr(win, "wheel dn: ");
            }
          else if ((BUTTON_STATUS(button) &
                    BUTTON_ACTION_MASK) == BUTTON_PRESSED)
            {
              waddstr(win, "pressed: ");
            }
          else if ((BUTTON_STATUS(button) &
                    BUTTON_ACTION_MASK) == BUTTON_CLICKED)
            {
              waddstr(win, "clicked: ");
            }
          else if ((BUTTON_STATUS(button) &
                    BUTTON_ACTION_MASK) == BUTTON_DOUBLE_CLICKED)
            {
              waddstr(win, "double: ");
            }
          else
            {
              waddstr(win, "released: ");
            }

          wprintw(win, "Position: Y: %d X: %d", MOUSE_Y_POS, MOUSE_X_POS);
        }
      else if (PDC_get_key_modifiers())
        {
          waddstr(win, " Modifier(s):");
          if (PDC_get_key_modifiers() & PDC_KEY_MODIFIER_SHIFT)
            {
              waddstr(win, " SHIFT");
            }

          if (PDC_get_key_modifiers() & PDC_KEY_MODIFIER_CONTROL)
            {
              waddstr(win, " CONTROL");
            }

          if (PDC_get_key_modifiers() & PDC_KEY_MODIFIER_ALT)
            {
              waddstr(win, " ALT");
            }

          if (PDC_get_key_modifiers() & PDC_KEY_MODIFIER_NUMLOCK)
            {
              waddstr(win, " NUMLOCK");
            }
        }

      wrefresh(win);

      if (c == ' ')
        {
          break;
        }
    }

  wtimeout(win, -1);            /* turn off timeout() */
  curs_set(1);                  /* turn cursor back on */

  mouse_set(0L);
  PDC_save_key_modifiers(false);
  PDC_return_key_modifiers(false);
  wclear(win);
  mvwaddstr(win, 2, 1, "Press some keys for 5 seconds");
  mvwaddstr(win, 1, 1, "Pressing ^C should do nothing");
  wrefresh(win);

  werase(subWin);
  box(subWin, ACS_VLINE, ACS_HLINE);

  for (i = 0; i < 5; i++)
    {
      mvwprintw(subWin, 1, 1, "Time = %d", i);
      wrefresh(subWin);
      napms(1000);
      flushinp();
    }

  delwin(subWin);
  werase(win);
  flash();
  wrefresh(win);
  napms(500);
  flushinp();

  mvwaddstr(win, 2, 1, "Press a key, followed by ENTER");
  wmove(win, 9, 10);
  wrefresh(win);
  echo();

  keypad(win, true);
  raw();
  wgetnstr(win, buffer, 3);
  flushinp();

  wmove(win, 9, 10);
  wdelch(win);
  mvwaddstr(win, 4, 1, "The character should now have been deleted");
  continue1(win);

  refresh();
  wclear(win);
  echo();
  buffer[0] = '\0';
  mvwaddstr(win, 3, 2, "The window should have moved");
  mvwaddstr(win, 4, 2,
            "This text should have appeared without you pressing a key");
  mvwaddstr(win, 6, 2, "Enter a number then a string separated by space");
  mvwin(win, 2, 1);
  wrefresh(win);
  mvwscanw(win, 7, 6, "%d %s", &num, buffer);
  mvwprintw(win, 8, 6, "String: %s Number: %d", buffer, num);
  continue1(win);

  refresh();
  wclear(win);
  echo();
  mvwaddstr(win, 3, 2, "Enter a 5 character string: ");
  wgetnstr(win, buffer, 5);
  mvwprintw(win, 4, 2, "String: %s", buffer);
  continue1(win);
}

static void output_test(WINDOW *win)
{
  WINDOW *win1;
  char Buffer[80];
  chtype ch;
  int bx;
  int by;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

  nl();
  wclear(win);
  mvwaddstr(win, 1, 1, "You should now have a screen in the upper "
            "left corner, and this text should have wrapped");
  waddstr(win, "\nThis text should be down\n");
  waddstr(win, "and broken into two here ^");
  continue1(win);

  wclear(win);
  wattron(win, A_BOLD);
  mvwaddstr(win, 1, 1, "A new window will appear with this text in it");
  mvwaddstr(win, 8, 1, "Press any key to continue");
  wrefresh(win);
  wgetch(win);

  getbegyx(win, by, bx);

  if (LINES < 24 || COLS < 75)
    {
      mvwaddstr(win, 5, 1, "Some tests have been skipped as they require a");
      mvwaddstr(win, 6, 1, "display of at least 24 LINES by 75 COLUMNS");
      continue1(win);
    }
  else
    {
      win1 = newwin(10, 50, 14, 25);

      if (win1 == NULL)
        {
          endwin();
          return;
        }

#ifdef A_COLOR
      if (has_colors())
        {
          init_pair(3, COLOR_BLUE, COLOR_WHITE);
          wbkgd(win1, COLOR_PAIR(3));
        }
      else
#endif
        {
          wbkgd(win1, A_NORMAL);
        }

      wclear(win1);
      mvwaddstr(win1, 5, 1, "This text should appear; using overlay option");
      copywin(win, win1, 0, 0, 0, 0, 9, 49, true);
      box(win1, ACS_VLINE, ACS_HLINE);
      wmove(win1, 8, 26);
      wrefresh(win1);
      wgetch(win1);

      wclear(win1);

      wattron(win1, A_BLINK);
      mvwaddstr(win1, 4, 1,
                "This blinking text should appear in only the second window");
      wattroff(win1, A_BLINK);

      mvwin(win1, by, bx);
      overlay(win, win1);
      mvwin(win1, 14, 25);
      wmove(win1, 8, 26);
      wrefresh(win1);
      wgetch(win1);

      delwin(win1);
    }

  clear();
  wclear(win);
  wrefresh(win);
  mvwaddstr(win, 6, 2, "This line shouldn't appear");
  mvwaddstr(win, 4, 2, "Only half of the next line is visible");
  mvwaddstr(win, 5, 2, "Only half of the next line is visible");
  wmove(win, 6, 1);
  wclrtobot(win);
  wmove(win, 5, 20);
  wclrtoeol(win);
  mvwaddstr(win, 8, 2, "This line also shouldn't appear");
  wmove(win, 8, 1);
  winsdelln(win, -1);
  continue1(win);

  wmove(win, 5, 9);
  ch = winch(win);

  wclear(win);
  wmove(win, 6, 2);
  waddstr(win, "The next char should be l:  ");
  winsch(win, ch);
  continue1(win);

  mvwinsstr(win, 6, 2, "A1B2C3D4E5");
  continue1(win);

  wmove(win, 5, 1);
  winsdelln(win, 1);
  mvwaddstr(win, 5, 2, "The lines below should have moved down");
  continue1(win);

  wclear(win);
  wmove(win, 2, 2);
  wprintw(win, "This is a formatted string in a window: %d %s\n", 42, "is it");
  mvwaddstr(win, 10, 1, "Enter a string: ");
  wrefresh(win);
  echo();
  wscanw(win, "%s", Buffer);

  printw("This is a formatted string in stdscr: %d %s\n", 42, "is it");
  mvaddstr(10, 1, "Enter a string: ");
  scanw("%s", Buffer);

  wclear(win);
  curs_set(2);
  mvwaddstr(win, 1, 1, "The cursor should be in high-visibility mode");
  continue1(win);

  wclear(win);
  curs_set(0);
  mvwaddstr(win, 1, 1, "The cursor should have disappeared");
  continue1(win);

  wclear(win);
  curs_set(1);
  mvwaddstr(win, 1, 1, "The cursor should be normal");
  continue1(win);

#ifdef A_COLOR
  if (has_colors())
    {
      wclear(win);
      mvwaddstr(win, 1, 1, "Colors should change after you press a key");
      continue1(win);

      init_pair(1, COLOR_RED, COLOR_WHITE);
      wrefresh(win);
    }
#endif

  werase(win);
  mvwaddstr(win, 1, 1, "Information About Your Terminal");
  mvwaddstr(win, 3, 1, termname());
  mvwaddstr(win, 4, 1, longname());

  if (termattrs() & A_BLINK)
    {
      mvwaddstr(win, 5, 1, "This terminal claims to support blinking.");
    }
  else
    {
      mvwaddstr(win, 5, 1, "This terminal does NOT support blinking.");
    }

  mvwaddnstr(win, 7, 5, "Have a nice day!ok", 16);
  wrefresh(win);

  mvwinnstr(win, 7, 5, Buffer, 18);
  mvaddstr(LINES - 2, 10, Buffer);
  refresh();
  continue1(win);
}

static void resize_test(WINDOW *dummy)
{
  WINDOW *win1;
  int nwidth = 135;
  int nheight = 52;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  int owidth = COLS;
  int oheight = LINES;

  savetty();

  resize_term(nheight, nwidth);

  clear();
  refresh();

  win1 = newwin(10, 50, 14, 25);

  if (win1 == NULL)
    {
      endwin();
      return;
    }

#ifdef A_COLOR
  if (has_colors())
    {
      init_pair(3, COLOR_BLUE, COLOR_WHITE);
      wattrset(win1, COLOR_PAIR(3));
    }

  wclear(win1);
#endif
  mvwaddstr(win1, 0, 0, "The screen may now be resized");
  mvwprintw(win1, 1, 4, "Given size: %d by %d", nwidth, nheight);
  mvwprintw(win1, 2, 4, "Actual size: %d by %d", COLS, LINES);
  continue1(win1);

  wclear(win1);
  resetty();

  mvwaddstr(win1, 0, 0, "The screen should now be reset");
  mvwprintw(win1, 1, 6, "Old size: %d by %d", owidth, oheight);
  mvwprintw(win1, 2, 6, "Size now: %d by %d", COLS, LINES);
  continue1(win1);

  delwin(win1);

  clear();
  refresh();
}

static void pad_test(WINDOW *dummy)
{
  WINDOW *pad;
  WINDOW *spad;

  pad = newpad(50, 100);
  wattron(pad, A_REVERSE);
  mvwaddstr(pad, 5, 2, "This is a new pad");
  wattrset(pad, 0);
  mvwaddstr(pad, 8, 0,
            "The end of this line should be truncated here:except  now");
  mvwaddstr(pad, 11, 1, "This line should not appear.It will now");
  wmove(pad, 10, 1);
  wclrtoeol(pad);
  mvwaddstr(pad, 10, 1, " Press any key to continue");
  prefresh(pad, 0, 0, 0, 0, 10, 45);
  keypad(pad, true);
  raw();
  wgetch(pad);

  spad = subpad(pad, 12, 25, 7, 52);
  mvwaddstr(spad, 2, 2, "This is a new subpad");
  box(spad, 0, 0);
  prefresh(pad, 0, 0, 0, 0, 15, 75);
  keypad(pad, true);
  raw();
  wgetch(pad);

  mvwaddstr(pad, 35, 2, "This is displayed at line 35 in the pad");
  mvwaddstr(pad, 40, 1, " Press any key to continue");
  prefresh(pad, 30, 0, 0, 0, 10, 45);
  keypad(pad, true);
  raw();
  wgetch(pad);

  delwin(pad);
}

#if HAVE_CLIPBOARD
static void clipboard_test(WINDOW *win)
{
  static const char *text =
    "This string placed in clipboard by PDCurses test program, testcurs.";
  char *ptr = NULL;
  long length = 0;
  long i;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

  mvaddstr(1, 1, "This test will display the contents of the system clipboard");

  continue2();

  scrollok(stdscr, true);
  i = PDC_getclipboard(&ptr, &length);

  switch (i)
    {
    case PDC_CLIP_ACCESS_ERROR:
      mvaddstr(3, 1, "There was an error accessing the clipboard");
      refresh();
      break;

    case PDC_CLIP_MEMORY_ERROR:
      mvaddstr(3, 1, "Unable to allocate memory for clipboard contents");
      break;

    case PDC_CLIP_EMPTY:
      mvaddstr(3, 1, "There was no text in the clipboard");
      break;

    default:
      wsetscrreg(stdscr, 0, LINES - 1);
      clear();
      mvaddstr(1, 1, "Clipboard contents...");
      mvprintw(2, 1, "%s\n", ptr);
    }

  continue2();

  clear();
  mvaddstr(1, 1,
           "This test will place the following string in the system clipboard:");
  mvaddstr(2, 1, text);

  i = PDC_setclipboard(text, strlen(text));

  switch (i)
    {
    case PDC_CLIP_ACCESS_ERROR:
      mvaddstr(3, 1, "There was an error accessing the clipboard");
      break;

    case PDC_CLIP_MEMORY_ERROR:
      mvaddstr(3, 1, "Unable to allocate memory for clipboard contents");
      break;

    default:
      mvaddstr(3, 1, "The string was placed in the clipboard successfully");
    }

  continue2();
}
#endif /* HAVE_CLIPBOARD */

static void acs_test(WINDOW *win)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  chtype acs_values[ACSNUM];
  int tmarg = (LINES - 22) / 2;
  int i;

  attrset(A_BOLD);
  mvaddstr(tmarg, (COLS - 23) / 2, "Alternate Character Set");
  attrset(A_NORMAL);

  tmarg += 3;

#define A(b,c) acs_values[b] = ACS_##c

  A(0, ULCORNER);
  A(1, URCORNER);
  A(2, LLCORNER);
  A(3, LRCORNER);
  A(4, LTEE);
  A(5, RTEE);
  A(6, TTEE);
  A(7, BTEE);
  A(8, HLINE);
  A(9, VLINE);
  A(10, PLUS);
  A(11, S1);
  A(12, S9);
  A(13, DIAMOND);
  A(14, CKBOARD);
  A(15, DEGREE);

  A(16, PLMINUS);
  A(17, BULLET);
  A(18, LARROW);
  A(19, RARROW);
  A(20, UARROW);
  A(21, DARROW);
  A(22, BOARD);
  A(23, LANTERN);
  A(24, BLOCK);
#ifdef ACS_S3
  A(25, S3);
  A(26, S7);
  A(27, LEQUAL);
  A(28, GEQUAL);
  A(29, PI);
  A(30, NEQUAL);
  A(31, STERLING);
#endif

#undef A

  for (i = 0; i < ACSNUM; i++)
    {
      move((i % 8) * 2 + tmarg, (i / 8) * (COLS / 4) + (COLS / 8 - 7));
      addch(acs_values[i]);
      printw(" %s", acs_names[i]);
    }

  mvaddstr(tmarg + 18, 3, "Press any key to continue");
  getch();

#if HAVE_WIDE
  clear();

  attrset(A_BOLD);
  mvaddstr(tmarg - 3, (COLS - 28) / 2, "Wide Alternate Character Set");
  attrset(A_NORMAL);

  for (i = 0; i < ACSNUM; i++)
    {
      move((i % 8) * 2 + tmarg, (i / 8) * (COLS / 4) + (COLS / 8 - 7));
      add_wch(wacs_values[i]);
      printw(" W%s", acs_names[i]);
    }

  /* Spanish, Russian, Greek, Georgian */

  mvaddwstr(tmarg + 16, COLS / 8 - 5, L"Espa\xf1ol");
  mvaddwstr(tmarg + 16, 3 * (COLS / 8) - 5, russian);
  mvaddwstr(tmarg + 16, 5 * (COLS / 8) - 5, greek);
  mvaddwstr(tmarg + 16, 7 * (COLS / 8) - 5, georgian);

  mvaddstr(tmarg + 18, 3, "Press any key to continue");
  getch();
#endif
}

#if HAVE_COLOR
static void color_test(WINDOW *win)
{
  chtype fill = ACS_BLOCK;
  int tmarg;
  int col1;
  int col2;
  int col3;
  int i;
  int j;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

  if (!has_colors())
    {
      return;
    }

  tmarg = (LINES - 19) / 2;
  col1 = (COLS - 60) / 2;
  col2 = col1 + 20;
  col3 = col2 + 20;

  attrset(A_BOLD);
  mvaddstr(tmarg, (COLS - 22) / 2, "Color Attribute Macros");
  attrset(A_NORMAL);

  mvaddstr(tmarg + 3, col2 + 4, "A_NORMAL");
  mvaddstr(tmarg + 3, col3 + 5, "A_BOLD");

  for (i = 0; i < 8; i++)
    {
      init_pair(i + 4, colors[i], COLOR_BLACK);

      mvaddstr(tmarg + i + 5, col1, colornames[i]);

      for (j = 0; j < 16; j++)
        {
          mvaddch(tmarg + i + 5, col2 + j, fill | COLOR_PAIR(i + 4));
          mvaddch(tmarg + i + 5, col3 + j, fill | COLOR_PAIR(i + 4) | A_BOLD);
        }
    }

  mvprintw(tmarg + 15, col1, "COLORS = %d", COLORS);
  mvprintw(tmarg + 16, col1, "COLOR_PAIRS = %d", COLOR_PAIRS);

  mvaddstr(tmarg + 19, 3, "Press any key to continue");
  getch();

  if (can_change_color())
    {
      struct
      {
        short red;
        short green;
        short blue;
      } orgcolors[16];

      int MAXCOL = (COLORS >= 16) ? 16 : 8;

      if (MAXCOL < 8)
        {
          return;
        }

      for (i = 0; i < MAXCOL; i++)
        {
          color_content(i, &(orgcolors[i].red),
                        &(orgcolors[i].green), &(orgcolors[i].blue));
        }

      attrset(A_BOLD);
      mvaddstr(tmarg, (COLS - 22) / 2, " init_color() Example ");
      attrset(A_NORMAL);

      refresh();

      for (i = 0; i < 8; i++)
        {
          init_color(colors[i], i * 125, 0, i * 125);

          if (MAXCOL == 16)
            {
              init_color(colors[i] + 8, 0, i * 125, 0);
            }
        }

      mvaddstr(tmarg + 19, 3, "Press any key to continue");
      getch();

      for (i = 0; i < MAXCOL; i++)
        {
          init_color(i, orgcolors[i].red, orgcolors[i].green, orgcolors[i].blue);
        }
    }
}
#endif

#if HAVE_WIDE
static void wide_test(WINDOW *win)
{
  wchar_t tmp[513];
  size_t i;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

  attrset(A_BOLD);
  mvaddstr(1, (COLS - 25) / 2, "Wide Character Input Test");
  attrset(A_NORMAL);

  mvaddstr(4, 1, "Enter a string: ");

  echo();

  get_wstr((wint_t *) tmp);
  addstr("\n\n String:\n\n ");
  addwstr(tmp);
  addstr("\n\n\n Hex:\n\n ");

  for (i = 0; i < wcslen(tmp); i++)
    {
      printw("%04x ", tmp[i]);
      addnwstr(tmp + i, 1);
      addstr("  ");
    }

  noecho();
  continue2();
}
#endif

void display_menu(int old_option, int new_option)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  int lmarg = (COLS - 14) / 2, tmarg = (LINES - (MAX_OPTIONS + 2)) / 2;

  if (old_option == -1)
    {
      int i;

      attrset(A_BOLD);
      mvaddstr(tmarg - 3, lmarg - 5, "PDCurses Test Program");
      attrset(A_NORMAL);

      for (i = 0; i < MAX_OPTIONS; i++)
        {
          mvaddstr(tmarg + i, lmarg, command[i].text);
        }
    }
  else
    {
      mvaddstr(tmarg + old_option, lmarg, command[old_option].text);
    }

  attrset(A_REVERSE);
  mvaddstr(tmarg + new_option, lmarg, command[new_option].text);
  attrset(A_NORMAL);

  mvaddstr(tmarg + MAX_OPTIONS + 2, lmarg - 23,
           "Use Up and Down Arrows to select - Enter to run - Q to quit");
  refresh();
}

/****************************************************************************
 * Public Functions
 ****************************************************************************/

int main(int argc, FAR char *argv[])
{
  WINDOW *win;
  int key;
  int old_option = -1;
  int new_option = 0;
  bool quit = false;
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif

#ifdef CONFIG_LIBC_LOCALE
  setlocale(LC_ALL, "");
#endif

  if (init_test(&win, argc, argv))
    {
      return 1;
    }

#ifdef A_COLOR
  if (has_colors())
    {
      init_pair(1, COLOR_WHITE, COLOR_BLUE);
      wbkgd(win, COLOR_PAIR(1));
    }
  else
#endif
    {
      wbkgd(win, A_REVERSE);
    }

  erase();
  display_menu(old_option, new_option);

  while (1)
    {
      noecho();
      keypad(stdscr, true);
      raw();

      key = getch();

      switch (key)
        {
        case 10:
        case 13:
        case KEY_ENTER:
          old_option = -1;
          erase();
          refresh();
          (*command[new_option].function) (win);
          erase();
          display_menu(old_option, new_option);
          break;

        case KEY_PPAGE:
        case KEY_HOME:
          old_option = new_option;
          new_option = 0;
          display_menu(old_option, new_option);
          break;

        case KEY_NPAGE:
        case KEY_END:
          old_option = new_option;
          new_option = MAX_OPTIONS - 1;
          display_menu(old_option, new_option);
          break;

        case KEY_UP:
          old_option = new_option;
          new_option = (new_option == 0) ? new_option : new_option - 1;
          display_menu(old_option, new_option);
          break;

        case KEY_DOWN:
          old_option = new_option;
          new_option = (new_option == MAX_OPTIONS - 1) ?
            new_option : new_option + 1;
          display_menu(old_option, new_option);
          break;

#ifdef KEY_RESIZE
        case KEY_RESIZE:
          resize_term(0, 0);
          old_option = -1;
          erase();
          display_menu(old_option, new_option);
          break;
#endif
        case 'Q':
        case 'q':
          quit = true;
          break;
        }

      if (quit == true)
        {
          break;
        }
    }

  delwin(win);
  endwin();
  return 0;
}