summaryrefslogtreecommitdiff
path: root/src/event.c
blob: c05e0f15b176485faa8a2b6e9b1151135b9250ca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
/*	$calcurse: event.c,v 1.13 2009/05/22 19:59:18 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 (erase_flag_e flag)
{
  if (bkp_cut_event.mesg)
    {
      mem_free (bkp_cut_event.mesg);
      bkp_cut_event.mesg = 0;
    }
  if (bkp_cut_event.note)
    {
      if (flag == ERASE_FORCE)
        erase_note (&bkp_cut_event.note, ERASE_FORCE);
      else
        {
          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) ? mem_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[BUFSIZ], *nl;
  time_t tstart, t;

  t = time (NULL);
  (void)localtime (&t);

  /* Read the event description */
  (void)fgets (buf, sizeof buf, 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 (ERASE_FORCE);
                  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 (ERASE_FORCE_KEEP_NOTE);
}