nuttx-apps/graphics/pdcurs34/pdcurses/pdc_instr.c

/****************************************************************************
 * apps/graphics/pdcurses/pdc_instr.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
 ****************************************************************************/

/* Name: instr
 *
 * Synopsis:
 *       int instr(char *str);
 *       int innstr(char *str, int n);
 *       int winstr(WINDOW *win, char *str);
 *       int winnstr(WINDOW *win, char *str, int n);
 *       int mvinstr(int y, int x, char *str);
 *       int mvinnstr(int y, int x, char *str, int n);
 *       int mvwinstr(WINDOW *win, int y, int x, char *str);
 *       int mvwinnstr(WINDOW *win, int y, int x, char *str, int n);
 *
 *       int inwstr(wchar_t *wstr);
 *       int innwstr(wchar_t *wstr, int n);
 *       int winwstr(WINDOW *win, wchar_t *wstr);
 *       int winnwstr(WINDOW *win, wchar_t *wstr, int n);
 *       int mvinwstr(int y, int x, wchar_t *wstr);
 *       int mvinnwstr(int y, int x, wchar_t *wstr, int n);
 *       int mvwinwstr(WINDOW *win, int y, int x, wchar_t *wstr);
 *       int mvwinnwstr(WINDOW *win, int y, int x, wchar_t *wstr, int n);
 *
 * Description:
 *       These functions take characters (or wide characters) from the
 *       current or specified position in the window, and return them as
 *       a string in str (or wstr). Attributes are ignored. The functions
 *       with n as the last argument return a string at most n characters
 *       long.
 *
 * Return Value:
 *       Upon successful completion, innstr(), mvinnstr(), mvwinnstr()
 *       and winnstr() return the number of characters actually read into
 *       the string; instr(), mvinstr(), mvwinstr() and winstr() return
 *       OK. Otherwise, all these functions return ERR.
 *
 * Portability                                X/Open    BSD    SYS V
 *       instr                                   Y       -      4.0
 *       winstr                                  Y       -      4.0
 *       mvinstr                                 Y       -      4.0
 *       mvwinstr                                Y       -      4.0
 *       innstr                                  Y       -      4.0
 *       winnstr                                 Y       -      4.0
 *       mvinnstr                                Y       -      4.0
 *       mvwinnstr                               Y       -      4.0
 *       inwstr                                  Y
 *       winwstr                                 Y
 *       mvinwstr                                Y
 *       mvwinwstr                               Y
 *       innwstr                                 Y
 *       winnwstr                                Y
 *       mvinnwstr                               Y
 *       mvwinnwstr                              Y
 */

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

#include "curspriv.h"

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

int winnstr(WINDOW *win, char *str, int n)
{
#ifdef CONFIG_PDCURSES_WIDE
  wchar_t wstr[513];

  if (n < 0 || n > 512)
    {
      n = 512;
    }

  if (winnwstr(win, wstr, n) == ERR)
    {
      return ERR;
    }

  return PDC_wcstombs(str, wstr, n);
#else
  chtype *src;
  int i;

  PDC_LOG(("winnstr() - called: n %d\n", n));

  if (!win || !str)
    {
      return ERR;
    }

  if (n < 0 || (win->_curx + n) > win->_maxx)
    {
      n = win->_maxx - win->_curx;
    }

  src = win->_y[win->_cury] + win->_curx;

  for (i = 0; i < n; i++)
    {
      str[i] = src[i] & A_CHARTEXT;
    }

  str[i] = '\0';
  return i;
#endif
}

int instr(char *str)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("instr() - called: string=\"%s\"\n", str));

  return (ERR == winnstr(stdscr, str, stdscr->_maxx)) ? ERR : OK;
}

int winstr(WINDOW *win, char *str)
{
  PDC_LOG(("winstr() - called:\n"));

  return (ERR == winnstr(win, str, win->_maxx)) ? ERR : OK;
}

int mvinstr(int y, int x, char *str)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("mvinstr() - called: y %d x %d\n", y, x));

  if (move(y, x) == ERR)
    {
      return ERR;
    }

  return (ERR == winnstr(stdscr, str, stdscr->_maxx)) ? ERR : OK;
}

int mvwinstr(WINDOW *win, int y, int x, char *str)
{
  PDC_LOG(("mvwinstr() - called: y %d x %d\n", y, x));

  if (wmove(win, y, x) == ERR)
    {
      return ERR;
    }

  return (ERR == winnstr(win, str, win->_maxx)) ? ERR : OK;
}

int innstr(char *str, int n)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("innstr() - called: n %d\n", n));

  return winnstr(stdscr, str, n);
}

int mvinnstr(int y, int x, char *str, int n)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("mvinnstr() - called: y %d x %d n %d\n", y, x, n));

  if (move(y, x) == ERR)
    {
      return ERR;
    }

  return winnstr(stdscr, str, n);
}

int mvwinnstr(WINDOW *win, int y, int x, char *str, int n)
{
  PDC_LOG(("mvwinnstr() - called: y %d x %d n %d\n", y, x, n));

  if (wmove(win, y, x) == ERR)
    {
      return ERR;
    }

  return winnstr(win, str, n);
}

#ifdef CONFIG_PDCURSES_WIDE
int winnwstr(WINDOW *win, wchar_t *wstr, int n)
{
  chtype *src;
  int i;

  PDC_LOG(("winnstr() - called: n %d\n", n));

  if (!win || !wstr)
    {
      return ERR;
    }

  if (n < 0 || (win->_curx + n) > win->_maxx)
    {
      n = win->_maxx - win->_curx;
    }

  src = win->_y[win->_cury] + win->_curx;

  for (i = 0; i < n; i++)
    {
      wstr[i] = src[i] & A_CHARTEXT;
    }

  wstr[i] = L'\0';
  return i;
}

int inwstr(wchar_t *wstr)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("inwstr() - called\n"));

  return (ERR == winnwstr(stdscr, wstr, stdscr->_maxx)) ? ERR : OK;
}

int winwstr(WINDOW *win, wchar_t *wstr)
{
  PDC_LOG(("winwstr() - called\n"));

  return (ERR == winnwstr(win, wstr, win->_maxx)) ? ERR : OK;
}

int mvinwstr(int y, int x, wchar_t *wstr)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("mvinwstr() - called\n"));

  if (move(y, x) == ERR)
    {
      return ERR;
    }

  return (ERR == winnwstr(stdscr, wstr, stdscr->_maxx)) ? ERR : OK;
}

int mvwinwstr(WINDOW *win, int y, int x, wchar_t *wstr)
{
  PDC_LOG(("mvwinstr() - called\n"));

  if (wmove(win, y, x) == ERR)
    {
      return ERR;
    }

  return (ERR == winnwstr(win, wstr, win->_maxx)) ? ERR : OK;
}

int innwstr(wchar_t *wstr, int n)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("innwstr() - called\n"));

  return winnwstr(stdscr, wstr, n);
}

int mvinnwstr(int y, int x, wchar_t *wstr, int n)
{
#ifdef CONFIG_PDCURSES_MULTITHREAD
  FAR struct pdc_context_s *ctx = PDC_ctx();
#endif
  PDC_LOG(("mvinnstr() - called\n"));

  if (move(y, x) == ERR)
    {
      return ERR;
    }

  return winnwstr(stdscr, wstr, n);
}

int mvwinnwstr(WINDOW *win, int y, int x, wchar_t *wstr, int n)
{
  PDC_LOG(("mvwinnwstr() - called\n"));

  if (wmove(win, y, x) == ERR)
    {
      return ERR;
    }

  return winnwstr(win, wstr, n);
}
#endif