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/*****************************************************************************
** This is part of the CTSim program
** Copyright (c) 1983-2009 Kevin Rosenberg
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License (version 2) as
** published by the Free Software Foundation.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
******************************************************************************/
#include <stdio.h>
#include <string.h>
#include "ctsupport.h"
/* NAME
* cio_put_c Put a character on screen
*
* SYNOPSIS
* cio_put_c (c)
* char c Character to write
*
* NOTES
* Color of character is determined by the global variable, crtv.text_attr.
*
* SIDE EFFECTS
* Cursor is advanced by one. If necessary, the cursor will wrap around
* and maybe the screen will scroll
*/
void
cio_put_c (int c)
{
fputc(c, stdout);
}
/* NAME
* cio_put_cc Put a char on screen count times
*
* SYNOPSIS
* cio_put_cc (c, count)
* char c Character to write
* int count Number of characters to write
*/
void
cio_put_cc (int c, int count)
{
for (int i = 0; i < count; i++)
cio_put_c (c);
}
void
cio_put_str (const char *str)
{
fputs (str, stdout);
}
/* NAME
* kb_getc Get a character from the keyboard
*
* SYNOPSIS
* key = kb_getc()
*
* DESCRIPTION
* 1. This routine returns an EXTENTED ASCII code,
* the extended codes have a low byte of 0 and a distinctive
* high byte, such as 0x2D00 and 0x3200
* 2. This routine waits until a key has been typed
* 2. The keystroke will not be echoed.
*/
unsigned int cio_kb_getc(void)
{
return fgetc(stdin);
}
void
cio_kb_ungetc (unsigned int c)
{
ungetc(c, stdin);
}
/* NAME
* kb_gets Get a string from the keyboard
*
* SYNOPSIS
* str = kb_gets (str, maxlen)
* char *str Space to store input string
* int maxlen Maximum number of characters to read
* (Not including EOS)
* NOTES
* Backspace - erases character to the right
* Escape - erases to beginning of line
* Return - ends string (no not cause a linefeed)
*/
char *
cio_kb_gets (char *str, int maxlen)
{
return fgets(str, maxlen, stdin);
}
/* NAME
* kb_waitc Wait for a character from the keyboard
*
* SYNOPSIS
* key = kb_waitc (astr, estr, beep)
* int key Keystroke entered
* char *astr String of valid ascii characters
* bool beep If TRUE, beep when user hits invalid key
*
*/
unsigned int
cio_kb_waitc (const char *astr, int beep_on_error)
{
unsigned int c;
do {
c = cio_kb_getc ();
if (strchr (astr, c) != NULL)
break;
if (beep_on_error)
cio_beep();
} while (1);
return (c);
}
/* NAME
* beep sound a beep to user
*
* SYNOPSIS
* beep()
*/
void cio_beep (void)
{
cio_tone (2000.0, 0.3);
}
/* NAME
* tone play a frequency sound for some duration
*
* SYNOPSIS
* tone (freq, length)
* double freq frequency to play in Hertz
* double length duration to play note in seconds
*/
void
cio_tone (double freq, double length)
{
#if 1
fprintf(stdout, "\007");
#else
cio_spkr_freq (freq); /* Set frequency of tone */
cio_spkr_on (); /* Turn on speaker */
pause (length); /* Pause for length seconds */
cio_spkr_off (); /* Turn off speaker */
#endif
}
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