119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/****************************************************************************
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* apps/graphics/pdcurses/pdc_beep.c
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* Public Domain Curses
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* RCSID("$Id: beep.c,v 1.34 2008/07/13 16:08:17 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: beep
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*
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* Synopsis:
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* int beep(void);
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* int flash(void);
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*
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* Description:
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* beep() sounds the audible bell on the terminal, if possible;
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* if not, it calls flash().
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*
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* flash() "flashes" the screen, by inverting the foreground and
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* background of every cell, pausing, and then restoring the
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* original attributes.
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*
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* Return Value:
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* These functions return OK.
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*
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* Portability X/Open BSD SYS V
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* beep Y Y Y
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* flash Y Y 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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int beep(void)
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{
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PDC_LOG(("beep() - called\n"));
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if (SP->audible)
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{
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PDC_beep();
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}
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else
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{
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flash();
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}
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return OK;
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}
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int flash(void)
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{
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int x;
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int y;
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int z;
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PDC_LOG(("flash() - called\n"));
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/* Reverse each cell; wait; restore the screen */
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for (z = 0; z < 2; z++)
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{
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for (y = 0; y < LINES; y++)
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{
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for (x = 0; x < COLS; x++)
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{
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curscr->_y[y][x] ^= A_REVERSE;
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}
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}
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wrefresh(curscr);
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if (!z)
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{
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napms(50);
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}
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}
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return OK;
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}
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