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/* $Id: layout.c 1057 2009-11-17 01:47:43Z edman007 $
* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/layout.c $
*
* new layouter framework
*
* Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 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.
*
*/
/*
* 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
/* rename old-style widgets without layer */
static int layout_migrate(const char *section)
{
char *list, *old, *new;
int row, col;
/* get a list of all keys in this section */
list = cfg_list(section);
/* map to lower char for scanf() */
for (old = list; *old != '\0'; old++)
*old = tolower(*old);
old = list;
while (old != NULL) {
char *p;
int i, n;
/* list is delimited by | */
while (*old == '|')
old++;
if ((p = strchr(old, '|')) != NULL)
*p = '\0';
/* row/col widgets w/o layer */
i = sscanf(old, "row%d.col%d%n", &row, &col, &n);
if (i == 2 && old[n] == '\0') {
/* prepare new key */
/* strlen("Layer:1.")=8 */
new = malloc(strlen(old) + 9);
strcpy(new, "Layer:1.");
strcat(new, old);
debug("%s: migrating '%s' to '%s'", section, old, new);
if (cfg_rename(section, old, new) < 0) {
error("WARNING: %s: both keys '%s' and '%s' may not exist!", section, old, new);
}
free(new);
}
/* next field */
old = p ? p + 1 : NULL;
}
free(list);
return 0;
}
int layout_init(const char *layout)
{
char *section;
char *list, *l;
char *widget;
int lay, row, col, num;
info("initializing layout '%s'", layout);
/* prepare config section */
/* strlen("Layout:")=7 */
section = malloc(strlen(layout) + 8);
strcpy(section, "Layout:");
strcat(section, layout);
/* mirate layout to common format */
layout_migrate(section);
/* 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';
/* layer/x/y widgets */
i = sscanf(l, "layer:%d.x%d.y%d%n", &lay, &row, &col, &n);
if (i == 3 && l[n] == '\0') {
if (lay < 0 || lay >= LAYERS) {
error("%s: layer %d out of bounds (0..%d)", section, lay, LAYERS - 1);
} else {
widget = cfg_get(section, l, NULL);
if (widget != NULL && *widget != '\0') {
widget_add(widget, WIDGET_TYPE_XY, lay, row - 1, col - 1);
}
free(widget);
}
}
/* layer/row/col widgets */
i = sscanf(l, "layer:%d.row%d.col%d%n", &lay, &row, &col, &n);
if (i == 3 && l[n] == '\0') {
if (lay < 0 || lay >= LAYERS) {
error("%s: layer %d out of bounds (0..%d)", section, lay, LAYERS - 1);
} else {
widget = cfg_get(section, l, NULL);
if (widget != NULL && *widget != '\0') {
widget_add(widget, WIDGET_TYPE_RC, lay, row - 1, col - 1);
}
free(widget);
}
}
/* GPO widgets */
i = sscanf(l, "gpo%d%n", &num, &n);
if (i == 1 && l[n] == '\0') {
widget = cfg_get(section, l, NULL);
if (widget != NULL && *widget != '\0') {
widget_add(widget, WIDGET_TYPE_GPO, 0, num - 1, 0);
}
free(widget);
}
/* timer widgets */
i = sscanf(l, "timer%d%n", &num, &n);
if (i == 1 && l[n] == '\0') {
widget = cfg_get(section, l, NULL);
if (widget != NULL && *widget != '\0') {
widget_add(widget, WIDGET_TYPE_TIMER, 0, num - 1, 0);
}
free(widget);
}
/* keypad widget */
i = sscanf(l, "keypad%d%n", &num, &n);
if (i == 1 && l[n] == '\0') {
widget = cfg_get(section, l, NULL);
if (widget != NULL && *widget != '\0') {
widget_add(widget, WIDGET_TYPE_KEYPAD, 0, num - 1, 0);
}
free(widget);
}
/* next field */
l = p ? p + 1 : NULL;
}
free(list);
free(section);
return 0;
}
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