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/*
* gom_info.c: output handling
*/
/*
* This file is part of the package
*
* gom, Gom is nOt yet another Mixer
*
* (c) Stephan Suerken <suerken@fh-worms.de> 1996, 1997
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* INCLUDES
*/
#include "gom.h"
/*
* MACROS
*/
/*
* DECLARATIONS/DEFINITIONS
*/
/* holds verbosity mode for gom_info */
int gom_info_verbosity_var = GOM_INFO_NORMAL;
/* holds scroll mode for gom_info */
int gom_info_scroll_var = 0;
/* shown errors count definition */
int gom_info_errors = 0;
/* holds custom output procedure */
void (*gom_info_custom_var) (enum gom_info_types, char *, va_list) = gom_info_custom_default;
/*
* FUNCTION PROTOTYPES
*/
/******************/
/*
* VERBOSITY
*/
int
gom_info_verbosity()
{
return gom_info_verbosity_var;
}
void
gom_info_verbosity_set(enum gom_info_types std_verb,
int verbosity)
{
int old_verbosity = gom_info_verbosity_var;
gom_info_verbosity_var = verbosity;
gom_info(std_verb,
"Verbosity set to %i (was %i) [" GOM_INFO_VERBOSITY_PRINTF_MASK "].",
gom_info_verbosity_var, old_verbosity,
GOM_INFO_VERBOSITY_PRINTF_VARS);
}
/*
* SCROLL MODE
*/
int
gom_info_scroll()
{
return gom_info_scroll_var;
}
int
gom_info_scroll_set(int scroll)
{
int old_scroll = gom_info_scroll_var;
gom_info_scroll_var = scroll;
return old_scroll;
}
/*
* CUSTOM OUTPUT PROC
*/
void
gom_info_custom_default(enum gom_info_types kind, char * fmt, va_list vargs)
{
FILE* output_stream;
output_stream = stdout;
if (kind == GOM_INFO_ERROR)
output_stream = stderr;
vfprintf(output_stream, fmt, vargs);
fprintf(output_stream, "\n");
fflush(output_stream);
}
void
gom_info_custom_set(void (* proc) (enum gom_info_types, char *, va_list))
{
if (proc == NULL)
gom_info_custom_var = gom_info_custom_default;
else
gom_info_custom_var = proc;
}
/*
* GOM INFO
*/
void
gom_info(enum gom_info_types kind, char * fmt, ...)
{
va_list vargs;
char new_fmt[GOM_INFO_FMT_SIZE];
/* error count */
if ((kind == GOM_INFO_ERROR) && (gom_info_errors < INT_MAX))
++gom_info_errors;
if (kind <= gom_info_verbosity())
{
strncpy(new_fmt, (kind == GOM_INFO_ERROR) ? "gom error: " : "gom: ", GOM_INFO_FMT_SIZE);
strncat(new_fmt, fmt, GOM_INFO_FMT_SIZE);
va_start(vargs, fmt);
gom_info_custom_var(kind, new_fmt, vargs);
va_end(vargs);
}
}
/*
* Two helpers
*/
void
gom_info_block(enum gom_info_types std_verb,
int indent, char * text)
{
const int line_size = 70;
char line[line_size];
int i;
char * string = text;
int block_width = line_size-1-indent;
do
{
/* avoid leading spaces */
while (*string == ' ') string++;
/* indent */
strcpy(line, "");
for (i=0; i < indent; i++)
strncat(line, " ", line_size-1);
/* blocked text */
strncat(line, string, block_width);
/* show string */
gom_info(std_verb, line);
/* calc new string */
if (strlen(string) > block_width)
string += block_width;
else
break;
}
while (1);
}
void
gom_info_text(enum gom_info_types kind, char * text[])
{
int i;
for (i = 0; text[i] != NULL; ++i)
gom_info(kind, text[i]);
}
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