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/* $Id: widget.c,v 1.1 2003/09/19 03:51:29 reinelt Exp $
*
* generic widget 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: widget.c,v $
* Revision 1.1 2003/09/19 03:51:29 reinelt
* minor fixes, widget.c added
*
*/
/*
* exported functions:
*
* int widget_junk(void)
* does something
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "debug.h"
#include "cfg.h"
#include "widget.h"
static int ROWS=0;
static int COLS=0;
static int XRES=0;
static int YRES=0;
static int *Screen=NULL;
static WIDGET *Widget=NULL;
static int nWidget=0;
int widget_init (int rows, int cols, int xres, int yres)
{
if (rows<1 || cols<1)
return -1;
ROWS=rows;
COLS=cols;
XRES=xres;
YRES=yres;
if ((Screen=malloc(ROWS*COLS*sizeof(*Screen)))==NULL) {
error ("widget buffer allocation failed: out of memory?");
return -1;
}
nWidget=0;
Widget=NULL;
return 0;
}
void widget_clear (void)
{
int n;
for (n=0; n<ROWS*COLS; n++) {
Screen[n]=-1;
}
}
int widget_add ()
{
nWidget++;
Widget=realloc(Widget, nWidget*sizeof(*Widget));
return 0;
}
int widget_peek (int row, int col)
{
if (Screen)
return Screen[row*COLS+col];
else
return -1;
}
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