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/* $Id$
* $URL$
*
* timer widget handling
*
* Copyright (C) 2006 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2006 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* 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.
*
*/
/*
* exported functions:
*
* WIDGET_CLASS Widget_Timer
* the timer widget
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "property.h"
#include "timer.h"
#include "widget.h"
#include "widget_timer.h"
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif
void widget_timer_update(void *Self)
{
WIDGET *W = (WIDGET *) Self;
WIDGET_TIMER *Timer = W->data;
int update, active;
/* evaluate expressions */
property_eval(&Timer->update);
property_eval(&Timer->active);
/* get new update interval */
update = P2N(&Timer->update);
if (update < 10)
update = 10;
/* finally, fire it! */
active = P2N(&Timer->active);
if (active > 0) {
property_eval(&Timer->expression);
}
/* add a new one-shot timer */
timer_add(widget_timer_update, Self, update, 1);
}
int widget_timer_init(WIDGET * Self)
{
char *section;
WIDGET_TIMER *Timer;
/* prepare config section */
/* strlen("Widget:")=7 */
section = malloc(strlen(Self->name) + 8);
strcpy(section, "Widget:");
strcat(section, Self->name);
Timer = malloc(sizeof(WIDGET_TIMER));
memset(Timer, 0, sizeof(WIDGET_TIMER));
/* load properties */
property_load(section, "expression", NULL, &Timer->expression);
property_load(section, "update", "100", &Timer->update);
property_load(section, "active", "1", &Timer->active);
free(section);
Self->data = Timer;
Self->x2 = NOCOORD;
Self->y2 = NOCOORD;
/* just do it! */
widget_timer_update(Self);
return 0;
}
int widget_timer_quit(WIDGET * Self)
{
if (Self) {
/* do not deallocate child widget! */
if (Self->parent == NULL) {
if (Self->data) {
WIDGET_TIMER *Timer = Self->data;
property_free(&Timer->expression);
property_free(&Timer->update);
property_free(&Timer->active);
free(Self->data);
Self->data = NULL;
}
}
}
return 0;
}
int widget_timer_register(void)
{
WIDGET_CLASS wc;
wc = Widget_Timer;
widget_register(&wc);
return 0;
}
WIDGET_CLASS Widget_Timer = {
.name = "timer",
.type = WIDGET_TYPE_TIMER,
.init = widget_timer_init,
.draw = NULL,
.quit = widget_timer_quit,
};
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