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$Id$
$URL$


LCD4Linux Coding Style

We decided to use a common coding style to make patches and diffs 
easier to read and apply.

The style we use is based on Kernighan & Ritchie and the coding style 
of the linux kernel (see /usr/src/linux/Documentation/CodingStyle),
with some differences:

- we use a indentation level of 4 spaces (Linus prefers 8)
- we allow lines up to 150 chars (Linus uses 80)

The resulting indent command is:
indent -kr -l150

There's a script called 'indent.sh' that comes with the LCD4Linux 
source package; all it does is call indent with all .c and .h files.

It is always a good idea to call 'indent.sh' before any SVN operation,
this ensures that diffs and updates won't get mixed up because of
cosmetic changes.
hlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/* $Id: layout.c,v 1.10 2004/03/03 03:47:04 reinelt Exp $
 *
 * new layouter framework
 *
 * Copyright 1999-2003 Michael Reinelt <reinelt@eunet.at>
 * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux 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.
 *
 * LCD4Linux 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: layout.c,v $
 * Revision 1.10  2004/03/03 03:47:04  reinelt
 * big patch from Martin Hejl:
 * - use qprintf() where appropriate
 * - save CPU cycles on gettimeofday()
 * - add quit() functions to free allocated memory
 * - fixed lots of memory leaks
 *
 * Revision 1.9  2004/02/01 19:37:40  reinelt
 * got rid of every strtok() incarnation.
 *
 * Revision 1.8  2004/02/01 18:08:50  reinelt
 * removed strtok() from layout processing (took me hours to find this bug)
 * further strtok() removind should be done!
 *
 * Revision 1.7  2004/01/30 20:57:56  reinelt
 * HD44780 patch from Martin Hejl
 * dmalloc integrated
 *
 * Revision 1.6  2004/01/14 11:33:00  reinelt
 * new plugin 'uname' which does what it's called
 * text widget nearly finished
 * first results displayed on MatrixOrbital
 *
 * Revision 1.5  2004/01/13 08:18:19  reinelt
 * timer queues added
 * liblcd4linux deactivated turing transformation to new layout
 *
 * Revision 1.4  2004/01/12 03:51:01  reinelt
 * evaluating the 'Variables' section in the config file
 *
 * Revision 1.3  2004/01/11 18:26:02  reinelt
 * further widget and layout processing
 *
 * Revision 1.2  2004/01/11 09:26:15  reinelt
 * layout starts to exist...
 *
 * Revision 1.1  2004/01/10 20:22:33  reinelt
 * added new function 'cfg_list()' (not finished yet)
 * added layout.c (will replace processor.c someday)
 * added widget_text.c (will be the first and most important widget)
 * modified lcd4linux.c so that old-style configs should work, too
 *
 */

/* 
 * exported functions:
 *
 * layout_init (char *section)
 *    initializes the layouter
 *
 */

#include "config.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>

#include "debug.h"
#include "cfg.h"
#include "widget.h"
#include "layout.h"

#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif


int layout_addItem (char *name, int row, int col)
{
  // allocate widget
  widget_add (name, row-1, col-1);
  return 0;
}


int layout_init (char *layout)
{
  char *section;
  char *list, *l;
  char *widget;
  int row, col;
  
  info ("initializing layout '%s'", layout);
  
  // prepare config section
  // strlen("Layout:")=7
  section=malloc(strlen(layout)+8);
  strcpy(section, "Layout:");
  strcat(section, layout);
  
  // get a list of all keys in this section
  list=cfg_list(section);

  // map to lower char for scanf()
  for (l=list; *l!='\0'; l++) *l=tolower(*l);

  l=list;
  while (l!=NULL) {
    char *p;
    int i, n;
    // list is delimited by |
    while (*l=='|') l++;
    if ((p=strchr(l, '|'))!=NULL) *p='\0';
    i=sscanf (l, "row%d.col%d%n", &row, &col, &n);
    if (i==2 && l[n]=='\0') {
      widget=cfg_get(section, l, NULL);
      if (widget!=NULL && *widget!='\0') {
        layout_addItem (widget, row, col);
      }
	  free(widget);
    }
    // next field
    l=p?p+1:NULL;
  }
  free (list);
  free(section);
  return 0;
}