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/* $calcurse: event.c,v 1.11 2009/01/02 19:52:32 culot Exp $ */
/*
* Calcurse - text-based organizer
* Copyright (c) 2004-2009 Frederic Culot
*
* 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 of the License, 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Send your feedback or comments to : calcurse@culot.org
* Calcurse home page : http://culot.org/calcurse
*
*/
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include "vars.h"
#include "i18n.h"
#include "mem.h"
#include "event.h"
struct event_s *eventlist;
static struct event_s bkp_cut_event;
void
event_free_bkp (void)
{
if (bkp_cut_event.mesg)
{
mem_free (bkp_cut_event.mesg);
bkp_cut_event.mesg = 0;
}
if (bkp_cut_event.note)
{
mem_free (bkp_cut_event.note);
bkp_cut_event.note = 0;
}
}
static void
event_dup (struct event_s *in, struct event_s *bkp)
{
EXIT_IF (!in || !bkp, _("null pointer"));
bkp->id = in->id;
bkp->day = in->day;
bkp->mesg = mem_strdup (in->mesg);
if (in->note)
bkp->note = mem_strdup (in->note);
}
void
event_llist_free (void)
{
struct event_s *o, **i;
i = &eventlist;
while (*i)
{
o = *i;
*i = o->next;
mem_free (o->mesg);
if (o->note)
mem_free (o->note);
mem_free (o);
}
}
/* Create a new event */
struct event_s *
event_new (char *mesg, char *note, long day, int id)
{
struct event_s *o, **i;
o = (struct event_s *) mem_malloc (sizeof (struct event_s));
o->mesg = mem_strdup (mesg);
o->day = day;
o->id = id;
o->note = (note != NULL) ? strdup (note) : NULL;
i = &eventlist;
for (;;)
{
if (*i == 0 || (*i)->day > day)
{
o->next = *i;
*i = o;
break;
}
i = &(*i)->next;
}
return (o);
}
/* Check if the event belongs to the selected day */
unsigned
event_inday (struct event_s *i, long start)
{
if (i->day <= start + DAYINSEC && i->day > start)
{
return (1);
}
return (0);
}
/* Write to file the event in user-friendly format */
void
event_write (struct event_s *o, FILE *f)
{
struct tm *lt;
time_t t;
t = o->day;
lt = localtime (&t);
(void)fprintf (f, "%02u/%02u/%04u [%d] ", lt->tm_mon + 1, lt->tm_mday,
1900 + lt->tm_year, o->id);
if (o->note != NULL)
(void)fprintf (f, ">%s ", o->note);
(void)fprintf (f, "%s\n", o->mesg);
}
/* Load the events from file */
struct event_s *
event_scan (FILE *f, struct tm start, int id, char *note)
{
char buf[MESG_MAXSIZE], *nl;
time_t tstart, t;
t = time (NULL);
(void)localtime (&t);
/* Read the event description */
(void)fgets (buf, MESG_MAXSIZE, f);
nl = strchr (buf, '\n');
if (nl)
{
*nl = '\0';
}
start.tm_hour = 12;
start.tm_min = 0;
start.tm_sec = 0;
start.tm_isdst = -1;
start.tm_year -= 1900;
start.tm_mon--;
tstart = mktime (&start);
EXIT_IF (tstart == -1, _("date error in the event\n"));
return event_new (buf, note, tstart, id);
}
/* Retrieve an event from the list, given the day and item position. */
struct event_s *
event_get (long day, int pos)
{
struct event_s *o;
int n;
n = 0;
for (o = eventlist; o; o = o->next)
{
if (event_inday (o, day))
{
if (n == pos)
return o;
n++;
}
}
EXIT (_("event not found"));
return 0;
/* NOTREACHED */
}
/* Delete an event from the list. */
void
event_delete_bynum (long start, unsigned num, erase_flag_e flag)
{
unsigned n;
struct event_s *i, **iptr;
n = 0;
iptr = &eventlist;
for (i = eventlist; i != 0; i = i->next)
{
if (event_inday (i, start))
{
if (n == num)
{
switch (flag)
{
case ERASE_FORCE_ONLY_NOTE:
erase_note (&i->note, flag);
break;
case ERASE_CUT:
event_free_bkp ();
event_dup (i, &bkp_cut_event);
if (i->note)
mem_free (i->note);
/* FALLTHROUGH */
default:
*iptr = i->next;
mem_free (i->mesg);
if (flag != ERASE_FORCE_KEEP_NOTE && flag != ERASE_CUT)
erase_note (&i->note, flag);
mem_free (i);
break;
}
return;
}
n++;
}
iptr = &i->next;
}
EXIT (_("event not found"));
/* NOTREACHED */
}
void
event_paste_item (void)
{
(void)event_new (bkp_cut_event.mesg, bkp_cut_event.note,
date2sec (*calendar_get_slctd_day (), 12, 0),
bkp_cut_event.id);
event_free_bkp ();
}
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