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/* $Id: widget_timer.c,v 1.2 2006/02/25 13:36:33 geronet Exp $
*
* timer widget handling
*
* Copyright (C) 2006 Michael Reinelt <reinelt@eunet.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.
*
*
* $Log: widget_timer.c,v $
* Revision 1.2 2006/02/25 13:36:33 geronet
* updated indent.sh, applied coding style
*
* Revision 1.1 2006/01/23 06:17:18 reinelt
* timer widget added
*
*/
/*
* 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 "evaluator.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;
RESULT result = { 0, 0, 0, NULL };
/* evaluate expressions */
Timer->update = 10;
if (Timer->update_tree != NULL) {
Eval(Timer->update_tree, &result);
Timer->update = R2N(&result);
if (Timer->update < 10)
Timer->update = 10;
DelResult(&result);
}
Timer->active = 1;
if (Timer->active_tree != NULL) {
Eval(Timer->active_tree, &result);
Timer->active = R2N(&result);
if (Timer->active < 0)
Timer->active = 0;
DelResult(&result);
}
/* finally, fire it! */
if (Timer->active) {
Eval(Timer->expr_tree, &result);
DelResult(&result);
}
/* add a new one-shot timer */
timer_add(widget_timer_update, Self, Timer->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));
/* get raw expressions (we evaluate them ourselves) */
Timer->expression = cfg_get_raw(section, "axpression", NULL);
Timer->update_expr = cfg_get_raw(section, "update", "100");
Timer->active_expr = cfg_get_raw(section, "active", "1");
/* sanity checks */
if (Timer->expression == NULL || *Timer->expression == '\0') {
error("Timer %s has no expression, using '1'", Self->name);
Timer->expression = "1";
}
if (Timer->update_expr == NULL || *Timer->update_expr == '\0') {
error("Timer %s has no update, using '100'", Self->name);
Timer->update_expr = "100";
}
/* compile'em */
Compile(Timer->expression, &Timer->expr_tree);
Compile(Timer->update_expr, &Timer->update_tree);
Compile(Timer->active_expr, &Timer->active_tree);
free(section);
Self->data = Timer;
/* 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;
DelTree(Timer->expr_tree);
DelTree(Timer->update_tree);
DelTree(Timer->active_tree);
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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