186 lines
5.4 KiB
C
186 lines
5.4 KiB
C
/****************************************************************************
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* apps/graphics/pdcurses/pdc_inch.c
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* Public Domain Curses
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* RCSID("$Id: inch.c,v 1.33 2008/07/13 16:08:18 wmcbrine Exp $")
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*
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* Copyright (C) 2017 Gregory Nutt. All rights reserved.
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* Adapted by: Gregory Nutt <gnutt@nuttx.org>
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*
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* Adapted from the original public domain pdcurses by Gregory Nutt and
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* released as part of NuttX under the 3-clause BSD license:
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/* Name: inch
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*
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* Synopsis:
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* chtype inch(void);
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* chtype winch(WINDOW *win);
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* chtype mvinch(int y, int x);
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* chtype mvwinch(WINDOW *win, int y, int x);
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*
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* int in_wch(cchar_t *wcval);
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* int win_wch(WINDOW *win, cchar_t *wcval);
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* int mvin_wch(int y, int x, cchar_t *wcval);
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* int mvwin_wch(WINDOW *win, int y, int x, cchar_t *wcval);
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*
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* Description:
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* The inch() functions retrieve the character and attribute from
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* the current or specified window position, in the form of a
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* chtype. If a NULL window is specified, (chtype)ERR is returned.
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*
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* The in_wch() functions are the wide-character versions; instead
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* of returning a chtype, they store a cchar_t at the address
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* specified by wcval, and return OK or ERR. (No value is stored
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* when ERR is returned.) Note that in PDCurses, chtype and cchar_t
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* are the same.
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*
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* Portability X/Open BSD SYS V
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* inch Y Y Y
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* winch Y Y Y
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* mvinch Y Y Y
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* mvwinch Y Y Y
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* in_wch Y
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* win_wch Y
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* mvin_wch Y
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* mvwin_wch Y
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*/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "curspriv.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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chtype winch(WINDOW *win)
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{
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PDC_LOG(("winch() - called\n"));
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if (!win)
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{
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return (chtype) ERR;
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}
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return win->_y[win->_cury][win->_curx];
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}
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chtype inch(void)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("inch() - called\n"));
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return winch(stdscr);
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}
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chtype mvinch(int y, int x)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("mvinch() - called\n"));
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if (move(y, x) == ERR)
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{
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return (chtype)ERR;
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}
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return stdscr->_y[stdscr->_cury][stdscr->_curx];
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}
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chtype mvwinch(WINDOW *win, int y, int x)
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{
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PDC_LOG(("mvwinch() - called\n"));
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if (wmove(win, y, x) == ERR)
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{
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return (chtype) ERR;
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}
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return win->_y[win->_cury][win->_curx];
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}
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#ifdef CONFIG_PDCURSES_WIDE
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int win_wch(WINDOW *win, cchar_t *wcval)
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{
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PDC_LOG(("win_wch() - called\n"));
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if (!win || !wcval)
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{
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return ERR;
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}
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*wcval = win->_y[win->_cury][win->_curx];
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return OK;
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}
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int in_wch(cchar_t *wcval)
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{
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#ifdef CONFIG_PDCURSES_MULTITHREAD
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FAR struct pdc_context_s *ctx = PDC_ctx();
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#endif
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PDC_LOG(("in_wch() - called\n"));
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return win_wch(stdscr, wcval);
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}
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int mvin_wch(int y, int x, cchar_t *wcval)
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{
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PDC_LOG(("mvin_wch() - called\n"));
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if (!wcval || (move(y, x) == ERR))
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{
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return ERR;
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}
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*wcval = stdscr->_y[stdscr->_cury][stdscr->_curx];
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return OK;
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}
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int mvwin_wch(WINDOW *win, int y, int x, cchar_t *wcval)
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{
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PDC_LOG(("mvwin_wch() - called\n"));
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if (!wcval || (wmove(win, y, x) == ERR))
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{
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return ERR;
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}
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*wcval = win->_y[win->_cury][win->_curx];
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return OK;
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}
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#endif
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