mirror of
https://github.com/netfun2000/lcd4linux.git
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7496af7c86
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@1106 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/* $Id$
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* $URL$
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*
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* GPO widget handling
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*
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* Copyright (C) 2005 Michael Reinelt <michael@reinelt.co.at>
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* Copyright (C) 2005, 2006, 2007 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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/*
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* exported functions:
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*
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* WIDGET_CLASS Widget_GPO
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* the GPO widget
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*
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include "debug.h"
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#include "cfg.h"
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#include "property.h"
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#include "timer_group.h"
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#include "widget.h"
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#include "widget_gpo.h"
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#ifdef WITH_DMALLOC
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#include <dmalloc.h>
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#endif
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void widget_gpo_update(void *Self)
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{
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WIDGET *W = (WIDGET *) Self;
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WIDGET_GPO *GPO = W->data;
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/* evaluate properties */
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property_eval(&GPO->expression);
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property_eval(&GPO->update);
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/* finally, draw it! */
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if (W->class->draw)
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W->class->draw(W);
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/* add a new one-shot timer */
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if (P2N(&GPO->update) > 0) {
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timer_add_widget(widget_gpo_update, Self, P2N(&GPO->update), 1);
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}
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}
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int widget_gpo_init(WIDGET * Self)
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{
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char *section;
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WIDGET_GPO *GPO;
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/* prepare config section */
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/* strlen("Widget:")=7 */
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section = malloc(strlen(Self->name) + 8);
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strcpy(section, "Widget:");
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strcat(section, Self->name);
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GPO = malloc(sizeof(WIDGET_GPO));
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memset(GPO, 0, sizeof(WIDGET_GPO));
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/* load properties */
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property_load(section, "expression", NULL, &GPO->expression);
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property_load(section, "update", "1000", &GPO->update);
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/* sanity checks */
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if (!property_valid(&GPO->expression)) {
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error("Warning: widget %s has no expression", section);
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}
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free(section);
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Self->data = GPO;
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/* no display dimension */
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Self->x2 = NOCOORD;
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Self->y2 = NOCOORD;
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/* fire it the first time */
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widget_gpo_update(Self);
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return 0;
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}
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int widget_gpo_quit(WIDGET * Self)
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{
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if (Self && Self->data) {
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WIDGET_GPO *GPO = Self->data;
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property_free(&GPO->expression);
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property_free(&GPO->update);
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free(Self->data);
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Self->data = NULL;
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}
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return 0;
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}
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WIDGET_CLASS Widget_GPO = {
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.name = "gpo",
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.type = WIDGET_TYPE_GPO,
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.init = widget_gpo_init,
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.draw = NULL,
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.quit = widget_gpo_quit,
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};
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