mirror of
https://github.com/netfun2000/lcd4linux.git
synced 2026-02-27 09:44:34 +08:00
2f8b80242a
minor fixes, widget.c added git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@245 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
/* $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;
|
|
}
|