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/* $Id: icon.c,v 1.3 2003/09/01 04:09:34 reinelt Exp $
*
* generic icon and heartbeat handling
*
* written 2003 by Michael Reinelt (reinelt@eunet.at)
*
* 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, 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.
*
*
* $Log: icon.c,v $
* Revision 1.3 2003/09/01 04:09:34 reinelt
* icons nearly finished, but MatrixOrbital only
*
* Revision 1.2 2003/08/24 05:17:58 reinelt
* liblcd4linux patch from Patrick Schemitz
*
* Revision 1.1 2003/08/24 04:31:56 reinelt
* icon.c icon.h added
*
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "debug.h"
#include "cfg.h"
#include "icon.h"
static int ROWS=0;
static int COLS=0;
static int XRES=0;
static int YRES=0;
static int CHARS;
static int ICONS=0;
static int *Screen=NULL;
static char *Bitmap=NULL;
static int icon_read_bitmap (int num, char *bitmap)
{
int row, col, len;
char key[15];
char *val;
char map;
for (row=0; row<YRES; row++) {
snprintf (key, sizeof(key), "Icon%d.Bitmap%d", num+1, row+1);
val=cfg_get(key, "");
len=strlen(val);
map=0;
debug ("read_bitmap: num=%d row=%d val=<%s> len=%d", num, row, val, len);
for (col=0; col<XRES; col++) {
map<<=1;
if (col<len && val[col]=='*') {
map|=1;
}
}
*(bitmap+row-1)=map;
}
return 0;
}
int icon_init (int rows, int cols, int xres, int yres, int chars, int icons,
void(*defchar)(int ascii, char *bitmap))
{
int n;
if (rows<1 || cols<1)
return -1;
ROWS=rows;
COLS=cols;
XRES=xres;
YRES=yres;
CHARS=chars,
ICONS=icons;
if (Screen) {
free (Screen);
}
if ((Screen=malloc(ROWS*COLS*sizeof(*Screen)))==NULL) {
error ("icon buffer allocation failed: out of memory");
return -1;
}
icon_clear();
if (Bitmap) {
free (Bitmap);
}
if ((Bitmap=malloc(YRES*icons*sizeof(*Bitmap)))==NULL) {
error ("icon bitmap allocation failed: out of memory");
return -1;
}
memset (Bitmap, 0, YRES*icons*sizeof(*Bitmap));
for (n=0; n<icons; n++) {
icon_read_bitmap(n, Bitmap+YRES*n);
// icons use last ascii codes from userdef chars
defchar (CHARS-n-1, Bitmap+YRES*n);
}
return 0;
}
void icon_clear(void)
{
int n;
for (n=0; n<ROWS*COLS; n++) {
Screen[n]=-1;
}
}
int icon_draw (int num, int row, int col)
{
// icons use last ascii codes from userdef chars
Screen[row*COLS+col]=CHARS-num-1;
return 0;
}
int icon_peek (int row, int col)
{
return Screen[row*COLS+col];
}
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