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

/****************************************************************************
 * apps/graphics/pdcurses/pdc_getyx.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: getyx
 *
 * Synopsis:
 *       void getyx(WINDOW *win, int y, int x);
 *       void getparyx(WINDOW *win, int y, int x);
 *       void getbegyx(WINDOW *win, int y, int x);
 *       void getmaxyx(WINDOW *win, int y, int x);
 *
 *       void getsyx(int y, int x);
 *       int setsyx(int y, int x);
 *
 *       int getbegy(WINDOW *win);
 *       int getbegx(WINDOW *win);
 *       int getcury(WINDOW *win);
 *       int getcurx(WINDOW *win);
 *       int getpary(WINDOW *win);
 *       int getparx(WINDOW *win);
 *       int getmaxy(WINDOW *win);
 *       int getmaxx(WINDOW *win);
 *
 * Description:
 *       The getyx() macro (defined in curses.h -- the prototypes here
 *       are merely illustrative) puts the current cursor position of the
 *       specified window into y and x. getbegyx() and getmaxyx() return
 *       the starting coordinates and size of the specified window,
 *       respectively. getparyx() returns the starting coordinates of the
 *       parent's window, if the specified window is a subwindow;
 *       otherwise it sets y and x to -1. These are all macros.
 *
 *       getsyx() gets the coordinates of the virtual screen cursor, and
 *       stores them in y and x. If leaveok() is true, it returns -1, -1.
 *       If lines have been removed with ripoffline(), then getsyx()
 *       includes these lines in its count; so, the returned y and x
 *       values should only be used with setsyx().
 *
 *       setsyx() sets the virtual screen cursor to the y, x coordinates.
 *       If y, x are -1, -1, leaveok() is set true.
 *
 *       getsyx() and setsyx() are meant to be used by a library routine
 *       that manipulates curses windows without altering the position of
 *       the cursor. Note that getsyx() is defined only as a macro.
 *
 *       getbegy(), getbegx(), getcurx(), getcury(), getmaxy(),
 *       getmaxx(), getpary(), and getparx() return the appropriate
 *       coordinate or size values, or ERR in the case of a NULL window.
 *
 * Portability                                X/Open    BSD    SYS V
 *       getyx                                   Y       Y       Y
 *       getparyx                                -       -      4.0
 *       getbegyx                                -       -      3.0
 *       getmaxyx                                -       -      3.0
 *       getsyx                                  -       -      3.0
 *       setsyx                                  -       -      3.0
 *       getbegy                                 -       -       -
 *       getbegx                                 -       -       -
 *       getcury                                 -       -       -
 *       getcurx                                 -       -       -
 *       getpary                                 -       -       -
 *       getparx                                 -       -       -
 *       getmaxy                                 -       -       -
 *       getmaxx                                 -       -       -
 */

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

#include "curspriv.h"

/****************************************************************************
 * Publid Functions
 ****************************************************************************/

int getbegy(WINDOW *win)
{
  PDC_LOG(("getbegy() - called\n"));

  return win ? win->_begy : ERR;
}

int getbegx(WINDOW *win)
{
  PDC_LOG(("getbegx() - called\n"));

  return win ? win->_begx : ERR;
}

int getcury(WINDOW *win)
{
  PDC_LOG(("getcury() - called\n"));

  return win ? win->_cury : ERR;
}

int getcurx(WINDOW *win)
{
  PDC_LOG(("getcurx() - called\n"));

  return win ? win->_curx : ERR;
}

int getpary(WINDOW *win)
{
  PDC_LOG(("getpary() - called\n"));

  return win ? win->_pary : ERR;
}

int getparx(WINDOW *win)
{
  PDC_LOG(("getparx() - called\n"));

  return win ? win->_parx : ERR;
}

int getmaxy(WINDOW *win)
{
  PDC_LOG(("getmaxy() - called\n"));

  return win ? win->_maxy : ERR;
}

int getmaxx(WINDOW *win)
{
  PDC_LOG(("getmaxx() - called\n"));

  return win ? win->_maxx : ERR;
}

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

  if (y == -1 && x == -1)
    {
      curscr->_leaveit = true;
      return OK;
    }
  else
    {
      curscr->_leaveit = false;
      return wmove(curscr, y, x);
    }
}