diff options
Diffstat (limited to 'calendar/calobj.c')
| -rw-r--r-- | calendar/calobj.c | 1390 |
1 files changed, 0 insertions, 1390 deletions
diff --git a/calendar/calobj.c b/calendar/calobj.c deleted file mode 100644 index d4a17c8859..0000000000 --- a/calendar/calobj.c +++ /dev/null @@ -1,1390 +0,0 @@ -/* - * Calendar objects implementations. - * Copyright (C) 1998 the Free Software Foundation - * - * Authors: - * Miguel de Icaza (miguel@gnu.org) - * Federico Mena (quartic@gimp.org) - */ -#include <config.h> -#include <string.h> -#include <glib.h> -#include <ctype.h> -#include "calobj.h" -#include "timeutil.h" -#include "../libversit/vcc.h" - -iCalObject * -ical_object_new (void) -{ - iCalObject *ico; - - ico = g_new0 (iCalObject, 1); - - ico->seq = -1; - ico->dtstamp = time (NULL); - - return ico; -} - -static void -default_alarm (iCalObject *ical, CalendarAlarm *alarm, char *def_mail, enum AlarmType type) -{ - alarm->enabled = 0; - alarm->type = type; - - if (type != ALARM_MAIL){ - alarm->count = 15; - alarm->units = ALARM_MINUTES; - } else { - alarm->count = 1; - alarm->units = ALARM_DAYS; - } - - if (type == ALARM_MAIL) - alarm->data = g_strdup (def_mail); - else - alarm->data = g_strdup (""); -} - -iCalObject * -ical_new (char *comment, char *organizer, char *summary) -{ - iCalObject *ico; - - ico = ical_object_new (); - - ico->comment = g_strdup (comment); - ico->organizer = g_strdup (organizer); - ico->summary = g_strdup (summary); - ico->class = g_strdup ("PUBLIC"); - ico->status = g_strdup ("NEEDS ACTION"); - - default_alarm (ico, &ico->dalarm, organizer, ALARM_DISPLAY); - default_alarm (ico, &ico->palarm, organizer, ALARM_PROGRAM); - default_alarm (ico, &ico->malarm, organizer, ALARM_MAIL); - default_alarm (ico, &ico->aalarm, organizer, ALARM_AUDIO); - - return ico; -} - -static void -my_free (gpointer data, gpointer user_dat_ignored) -{ - g_free (data); -} - -static void -list_free (GList *list) -{ - g_list_foreach (list, my_free, 0); - g_list_free (list); -} - -#define free_if_defined(x) if (x){ g_free (x); x = 0; } -#define lfree_if_defined(x) if (x){ list_free (x); x = 0; } -void -ical_object_destroy (iCalObject *ico) -{ - /* Regular strings */ - free_if_defined (ico->comment); - free_if_defined (ico->organizer); - free_if_defined (ico->summary); - free_if_defined (ico->uid); - free_if_defined (ico->status); - free_if_defined (ico->class); - free_if_defined (ico->url); - free_if_defined (ico->recur); - - /* Lists */ - lfree_if_defined (ico->exdate); - lfree_if_defined (ico->categories); - lfree_if_defined (ico->resources); - lfree_if_defined (ico->related); - lfree_if_defined (ico->attach); - - /* Alarms */ - g_free (ico->dalarm.data); - g_free (ico->palarm.data); - g_free (ico->malarm.data); - g_free (ico->aalarm.data); - - g_free (ico); -} - -static GList * -set_list (char *str) -{ - GList *list = 0; - char *s; - - for (s = strtok (str, ";"); s; s = strtok (NULL, ";")) - list = g_list_prepend (list, g_strdup (s)); - - return list; -} - -static GList * -set_date_list (char *str) -{ - GList *list = 0; - char *s; - - for (s = strtok (str, ";,"); s; s = strtok (NULL, ";,")){ - time_t *t = g_new (time_t, 1); - - while (*s && isspace (*s)) - s++; - *t = time_from_isodate (s); - list = g_list_prepend (list, t); - } - return list; -} - -void -ical_object_add_exdate (iCalObject *o, time_t t) -{ - time_t *pt = g_new (time_t, 1); - - *pt = t; - o->exdate = g_list_prepend (o->exdate, pt); -} - -static void -ignore_space(char **str) -{ - while (**str && isspace (**str)) - (*str)++; -} - -static void -skip_numbers (char **str) -{ - while (**str){ - ignore_space (str); - if (!isdigit (**str)) - return; - while (**str && isdigit (**str)) - ; - } -} - -static void -weekdaylist (iCalObject *o, char **str) -{ - int i; - struct { - char first_letter, second_letter; - int index; - } days [] = { - { 'S', 'U', 0 }, - { 'M', 'O', 1 }, - { 'T', 'U', 2 }, - { 'W', 'E', 3 }, - { 'T', 'H', 4 }, - { 'F', 'R', 5 }, - { 'S', 'A', 6 } - }; - - ignore_space (str); - do { - for (i = 0; i < 7; i++){ - if (**str == days [i].first_letter && *(*str+1) == days [i].second_letter){ - o->recur->weekday |= 1 << i; - *str += 2; - if (**str == ' ') - (*str)++; - } - } - } while (isalpha (**str)); - - if (o->recur->weekday == 0){ - struct tm *tm = localtime (&o->dtstart); - - o->recur->weekday = 1 << tm->tm_wday; - } -} - -static void -weekdaynum (iCalObject *o, char **str) -{ - int i; - struct { - char first_letter, second_letter; - int index; - } days [] = { - { 'S', 'U', 0 }, - { 'M', 'O', 1 }, - { 'T', 'U', 2 }, - { 'W', 'E', 3 }, - { 'T', 'H', 4 }, - { 'F', 'R', 5 }, - { 'S', 'A', 6 } - }; - - ignore_space (str); - do { - for (i = 0; i < 7; i++){ - if (**str == days [i].first_letter && *(*str+1) == days [i].second_letter){ - o->recur->weekday = i; - *str += 2; - if (**str == ' ') - (*str)++; - } - } - } while (isalpha (**str)); -} - -static void -ocurrencelist (iCalObject *o, char **str) -{ - char *p; - - ignore_space (str); - p = *str; - if (!isdigit (*p)) - return; - - if (!(*p >= '1' && *p <= '5')) - return; - - if (!(*(p+1) == '+' || *(p+1) == '-')) - return; - - o->recur->u.month_pos = (*p-'0') * (*(p+1) == '+' ? 1 : -1); - *str += 2; -} - -static void -daynumber (iCalObject *o, char **str) -{ - int val = 0; - char *p = *str; - - ignore_space (str); - if (strcmp (p, "LD")){ - o->recur->u.month_day = DAY_LASTDAY; - *str += 2; - return; - } - - if (!(isdigit (*p))) - return; - - while (**str && isdigit (**str)){ - val = val * 10 + (**str - '0'); - (*str)++; - } - - if (**str == '+') - (*str)++; - - if (**str == '-') - val *= -1; - o->recur->u.month_day = val; -} - -static void -daynumberlist (iCalObject *o, char **str) -{ - int first = 0; - int val = 0; - - ignore_space (str); - - while (**str){ - if (!isdigit (**str)) - return; - while (**str && isdigit (**str)){ - val = 10 * val + (**str - '0'); - (*str)++; - } - if (!first){ - o->recur->u.month_day = val; - first = 1; - val = 0; - } - } -} - -static void -load_recur_weekly (iCalObject *o, char **str) -{ - weekdaylist (o, str); -} - -static void -load_recur_monthly_pos (iCalObject *o, char **str) -{ - ocurrencelist (o, str); - weekdaynum (o, str); -} - -static void -load_recur_monthly_day (iCalObject *o, char **str) -{ - daynumberlist (o, str); -} - -static void -load_recur_yearly_month (iCalObject *o, char **str) -{ - /* Skip as we do not support multiple months and we do expect - * the dtstart to agree with the value on this field - */ - skip_numbers (str); -} - -static void -load_recur_yearly_day (iCalObject *o, char **str) -{ - /* Skip as we do not support multiple days and we do expect - * the dtstart to agree with the value on this field - */ - skip_numbers (str); -} - -static void -duration (iCalObject *o, char **str) -{ - unsigned int duration = 0; - - ignore_space (str); - if (**str != '#') - return; - (*str)++; - while (**str && isdigit (**str)){ - duration = duration * 10 + (**str - '0'); - (*str)++; - } - o->recur->duration = duration; -} - -static void -enddate (iCalObject *o, char **str) -{ - ignore_space (str); - if (isdigit (**str)){ - o->recur->_enddate = time_from_isodate (*str); - *str += 16; - } -} - -static int -load_recurrence (iCalObject *o, char *str) -{ - enum RecurType type; - int interval = 0; - - type = -1; - switch (*str++){ - case 'D': - type = RECUR_DAILY; - break; - - case 'W': - type = RECUR_WEEKLY; - break; - - case 'M': - if (*str == 'P') - type = RECUR_MONTHLY_BY_POS; - else if (*str == 'D') - type = RECUR_MONTHLY_BY_DAY; - str++; - break; - - case 'Y': - if (*str == 'M') - type = RECUR_YEARLY_BY_MONTH; - else if (*str == 'D') - type = RECUR_YEARLY_BY_DAY; - str++; - break; - } - if (type == -1) - return 0; - - o->recur = g_new0 (Recurrence, 1); - o->recur->type = type; - ignore_space (&str); - - /* Get the interval */ - for (;*str && isdigit (*str);str++) - interval = interval * 10 + (*str-'0'); - o->recur->interval = interval; - - /* this is the default per the spec */ - o->recur->duration = 2; - - ignore_space (&str); - - switch (type){ - case RECUR_DAILY: - break; - case RECUR_WEEKLY: - load_recur_weekly (o, &str); - break; - case RECUR_MONTHLY_BY_POS: - load_recur_monthly_pos (o, &str); - break; - case RECUR_MONTHLY_BY_DAY: - load_recur_monthly_day (o, &str); - break; - case RECUR_YEARLY_BY_MONTH: - load_recur_yearly_month (o, &str); - break; - case RECUR_YEARLY_BY_DAY: - load_recur_yearly_day (o, &str); - break; - default: - g_warning ("Unimplemented recurrence type %d", (int) type); - break; - } - duration (o, &str); - enddate (o, &str); - - /* Compute the enddate */ - if (o->recur->_enddate == 0){ - if (o->recur->duration != 0){ - ical_object_compute_end (o); - } else - o->recur->enddate = 0; - } else { - o->recur->enddate = o->recur->_enddate; - } - return 1; -} - -#define is_a_prop_of(obj,prop) isAPropertyOf (obj,prop) -#define str_val(obj) the_str = fakeCString (vObjectUStringZValue (obj)) -#define has(obj,prop) (vo = isAPropertyOf (obj, prop)) - -/* - * FIXME: This is loosing precission. Enhanec the thresholds - */ -#define HOURS(n) (n*(60*60)) - -static void -setup_alarm_at (iCalObject *ico, CalendarAlarm *alarm, char *iso_time, VObject *vo) -{ - time_t alarm_time = time_from_isodate (iso_time); - time_t base = ico->dtstart; - int d = difftime (base, alarm_time); - VObject *a; - char *the_str; - - alarm->enabled = 1; - if (d > HOURS (2)){ - if (d > HOURS (48)){ - alarm->count = d / HOURS (24); - alarm->units = ALARM_DAYS; - } else { - alarm->count = d / (60*60); - alarm->units = ALARM_HOURS; - } - } else { - alarm->count = d / 60; - alarm->units = ALARM_MINUTES; - } - - if ((a = is_a_prop_of (vo, VCSnoozeTimeProp))){ - alarm->snooze_secs = isodiff_to_secs (str_val (a)); - free (the_str); - } - - if ((a = is_a_prop_of (vo, VCRepeatCountProp))){ - alarm->snooze_repeat = atoi (str_val (a)); - free (the_str); - } -} - -/* - * Duplicates an iCalObject. Implementation is a grand hack - */ -iCalObject * -ical_object_duplicate (iCalObject *o) -{ - VObject *vo; - iCalObject *new; - - vo = ical_object_to_vobject (o); - switch (o->type){ - case ICAL_EVENT: - new = ical_object_create_from_vobject (vo, VCEventProp); - break; - case ICAL_TODO: - new = ical_object_create_from_vobject (vo, VCTodoProp); - break; - default: - new = NULL; - } - - cleanVObject (vo); - return new; -} - -/* FIXME: we need to load the recurrence properties */ -iCalObject * -ical_object_create_from_vobject (VObject *o, const char *object_name) -{ - time_t now = time (NULL); - iCalObject *ical; - VObject *vo, *a; - VObjectIterator i; - char *the_str; - - ical = g_new0 (iCalObject, 1); - - if (strcmp (object_name, VCEventProp) == 0) - ical->type = ICAL_EVENT; - else if (strcmp (object_name, VCTodoProp) == 0) - ical->type = ICAL_TODO; - else { - g_free (ical); - return 0; - } - - /* uid */ - if (has (o, VCUniqueStringProp)){ - ical->uid = g_strdup (str_val (vo)); - free (the_str); - } - - /* seq */ - if (has (o, VCSequenceProp)){ - ical->seq = atoi (str_val (vo)); - free (the_str); - } else - ical->seq = 0; - - /* dtstart */ - if (has (o, VCDTstartProp)){ - ical->dtstart = time_from_isodate (str_val (vo)); - free (the_str); - } else - ical->dtstart = 0; - - /* dtend */ - ical->dtend = 0; /* default value */ - if (ical->type == ICAL_EVENT){ - if (has (o, VCDTendProp)){ - ical->dtend = time_from_isodate (str_val (vo)); - free (the_str); - } - } else if (ical->type == ICAL_TODO){ - if (has (o, VCDueProp)){ - ical->dtend = time_from_isodate (str_val (vo)); - free (the_str); - } - } - - /* dcreated */ - if (has (o, VCDCreatedProp)){ - ical->created = time_from_isodate (str_val (vo)); - free (the_str); - } - - /* completed */ - if (has (o, VCCompletedProp)){ - ical->completed = time_from_isodate (str_val (vo)); - free (the_str); - } - - /* last_mod */ - if (has (o, VCLastModifiedProp)){ - ical->last_mod = time_from_isodate (str_val (vo)); - free (the_str); - } else - ical->last_mod = now; - - /* exdate */ - if (has (o, VCExpDateProp)){ - ical->exdate = set_date_list (str_val (vo)); - free (the_str); - } - - /* description/comment */ - if (has (o, VCDescriptionProp)){ - ical->comment = g_strdup (str_val (vo)); - free (the_str); - } - - /* summary */ - if (has (o, VCSummaryProp)){ - ical->summary = g_strdup (str_val (vo)); - free (the_str); - } else - ical->summary = g_strdup (""); - - /* status */ - if (has (o, VCStatusProp)){ - ical->status = g_strdup (str_val (vo)); - free (the_str); - } else - ical->status = g_strdup ("NEEDS ACTION"); - - if (has (o, VCClassProp)){ - ical->class = g_strdup (str_val (vo)); - free (the_str); - } else - ical->class = "PUBLIC"; - - /* categories */ - if (has (o, VCCategoriesProp)){ - ical->categories = set_list (str_val (vo)); - free (the_str); - } - - /* resources */ - if (has (o, VCResourcesProp)){ - ical->resources = set_list (str_val (vo)); - free (the_str); - } - - /* priority */ - if (has (o, VCPriorityProp)){ - ical->priority = atoi (str_val (vo)); - free (the_str); - } - - /* tranparency */ - if (has (o, VCTranspProp)){ - ical->transp = atoi (str_val (vo)) ? ICAL_TRANSPARENT : ICAL_OPAQUE; - free (the_str); - } - - /* Organizer */ - if (has (o, VCOrgNameProp)){ - ical->organizer = g_strdup (str_val (vo)); - free (the_str); - } - - /* related */ - if (has (o, VCRelatedToProp)){ - ical->related = set_list (str_val (vo)); - free (the_str); - } - - /* attach */ - initPropIterator (&i, o); - while (moreIteration (&i)){ - vo = nextVObject (&i); - if (strcmp (vObjectName (vo), VCAttachProp) == 0){ - ical->attach = g_list_prepend (ical->attach, g_strdup (str_val (vo))); - free (the_str); - } - } - - /* url */ - if (has (o, VCURLProp)){ - ical->url = g_strdup (str_val (vo)); - free (the_str); - } - - /* dalarm */ - ical->dalarm.type = ALARM_DISPLAY; - ical->dalarm.enabled = 0; - if (has (o, VCDAlarmProp)){ - if ((a = is_a_prop_of (vo, VCRunTimeProp))){ - setup_alarm_at (ical, &ical->dalarm, str_val (a), vo); - free (the_str); - } - } - - /* aalarm */ - ical->aalarm.type = ALARM_AUDIO; - ical->aalarm.enabled = 0; - if (has (o, VCAAlarmProp)){ - if ((a = is_a_prop_of (vo, VCRunTimeProp))){ - setup_alarm_at (ical, &ical->aalarm, str_val (a), vo); - free (the_str); - } - } - - /* palarm */ - ical->palarm.type = ALARM_PROGRAM; - ical->palarm.enabled = 0; - if (has (o, VCPAlarmProp)){ - ical->palarm.type = ALARM_PROGRAM; - if ((a = is_a_prop_of (vo, VCRunTimeProp))){ - setup_alarm_at (ical, &ical->palarm, str_val (a), vo); - free (the_str); - - if ((a = is_a_prop_of (vo, VCProcedureNameProp))){ - ical->palarm.data = g_strdup (str_val (a)); - free (the_str); - } else - ical->palarm.data = g_strdup (""); - } - } - - /* malarm */ - ical->malarm.type = ALARM_MAIL; - ical->malarm.enabled = 0; - if (has (o, VCMAlarmProp)){ - ical->malarm.type = ALARM_MAIL; - if ((a = is_a_prop_of (vo, VCRunTimeProp))){ - setup_alarm_at (ical, &ical->malarm, str_val (a), vo); - free (the_str); - - if ((a = is_a_prop_of (vo, VCEmailAddressProp))){ - ical->malarm.data = g_strdup (str_val (a)); - free (the_str); - } else - ical->malarm.data = g_strdup (""); - } - } - - /* rrule */ - if (has (o, VCRRuleProp)){ - if (!load_recurrence (ical, str_val (vo))) { - ical_object_destroy (ical); - return NULL; - } - free (the_str); - } - return ical; -} - -static char * -to_str (int num) -{ - static char buf [40]; - - sprintf (buf, "%d", num); - return buf; -} - -/* - * stores a GList in the property. - */ -static void -store_list (VObject *o, char *prop, GList *values) -{ - GList *l; - int len; - char *result, *p; - - for (len = 0, l = values; l; l = l->next) - len += strlen (l->data) + 1; - - result = g_malloc (len); - - for (p = result, l = values; l; l = l->next) { - int len = strlen (l->data); - - strcpy (p, l->data); - - if (l->next) { - p [len] = ';'; - p += len+1; - } else - p += len; - } - - *p = 0; - - addPropValue (o, prop, result); - g_free (result); -} - -static void -store_date_list (VObject *o, char *prop, GList *values) -{ - GList *l; - int size, len; - char *s, *p; - - size = g_list_length (values); - s = p = g_malloc ((size * 17 + 1) * sizeof (char)); - - for (l = values; l; l = l->next){ - strcpy (s, isodate_from_time_t (*(time_t *)l->data)); - len = strlen (s); - s [len] = ','; - s += len + 1; - } - s--; - *s = 0; - addPropValue (o, prop, p); - g_free (p); -} - -static char *recur_type_name [] = { "D", "W", "MP", "MD", "YM", "YD" }; -static char *recur_day_list [] = { "SU", "MO", "TU","WE", "TH", "FR", "SA" }; -static char *alarm_names [] = { VCMAlarmProp, VCPAlarmProp, VCDAlarmProp, VCAAlarmProp }; - -static VObject * -save_alarm (VObject *o, CalendarAlarm *alarm, iCalObject *ical) -{ - VObject *alarm_object; - struct tm *tm; - time_t alarm_time; - - if (!alarm->enabled) - return NULL; - tm = localtime (&ical->dtstart); - switch (alarm->units){ - case ALARM_MINUTES: - tm->tm_min -= alarm->count; - break; - - case ALARM_HOURS: - tm->tm_hour -= alarm->count; - break; - - case ALARM_DAYS: - tm->tm_mday -= alarm->count; - break; - } - - alarm_time = mktime (tm); - alarm_object = addProp (o, alarm_names [alarm->type]); - addPropValue (alarm_object, VCRunTimeProp, isodate_from_time_t (alarm_time)); - - if (alarm->snooze_secs) - addPropValue (alarm_object, VCSnoozeTimeProp, isodiff_from_secs (alarm->snooze_secs)); - else - addPropValue (alarm_object, VCSnoozeTimeProp, ""); - - if (alarm->snooze_repeat){ - char buf [20]; - - sprintf (buf, "%d", alarm->snooze_repeat); - addPropValue (alarm_object, VCRepeatCountProp, buf); - } else - addPropValue (alarm_object, VCRepeatCountProp, ""); - return alarm_object; -} - -VObject * -ical_object_to_vobject (iCalObject *ical) -{ - VObject *o, *alarm, *s; - GList *l; - - if (ical->type == ICAL_EVENT) - o = newVObject (VCEventProp); - else - o = newVObject (VCTodoProp); - - /* uid */ - if (ical->uid) - addPropValue (o, VCUniqueStringProp, ical->uid); - - /* seq */ - addPropValue (o, VCSequenceProp, to_str (ical->seq)); - - /* dtstart */ - addPropValue (o, VCDTstartProp, isodate_from_time_t (ical->dtstart)); - - /* dtend */ - if (ical->type == ICAL_EVENT){ - addPropValue (o, VCDTendProp, isodate_from_time_t (ical->dtend)); - } else if (ical->type == ICAL_TODO){ - addPropValue (o, VCDueProp, isodate_from_time_t (ical->dtend)); - } - - /* dcreated */ - addPropValue (o, VCDCreatedProp, isodate_from_time_t (ical->created)); - - /* completed */ - if (ical->completed) - addPropValue (o, VCDTendProp, isodate_from_time_t (ical->completed)); - - /* last_mod */ - addPropValue (o, VCLastModifiedProp, isodate_from_time_t (ical->last_mod)); - - /* exdate */ - if (ical->exdate) - store_date_list (o, VCExpDateProp, ical->exdate); - - /* description/comment */ - if (ical->comment && strlen (ical->comment)){ - s = addPropValue (o, VCDescriptionProp, ical->comment); - if (strchr (ical->comment, '\n')) - addProp (s, VCQuotedPrintableProp); - } - - /* summary */ - if (strlen (ical->summary)){ - s = addPropValue (o, VCSummaryProp, ical->summary); - if (strchr (ical->summary, '\n')) - addProp (s, VCQuotedPrintableProp); - } else { - addPropValue (o, VCSummaryProp, _("Appointment")); - } - - /* status */ - addPropValue (o, VCStatusProp, ical->status); - - /* class */ - addPropValue (o, VCClassProp, ical->class); - - /* categories */ - if (ical->categories) - store_list (o, VCCategoriesProp, ical->categories); - - /* resources */ - if (ical->categories) - store_list (o, VCCategoriesProp, ical->resources); - - /* priority */ - addPropValue (o, VCPriorityProp, to_str (ical->priority)); - - /* transparency */ - addPropValue (o, VCTranspProp, to_str (ical->transp)); - - /* Owenr/organizer */ - if (ical->organizer) - addPropValue (o, VCOrgNameProp, ical->organizer); - - /* related */ - if (ical->related) - store_list (o, VCRelatedToProp, ical->related); - - /* attach */ - for (l = ical->attach; l; l = l->next) - addPropValue (o, VCAttachProp, l->data); - - /* url */ - if (ical->url) - addPropValue (o, VCURLProp, ical->url); - - if (ical->recur){ - char result [256]; - char buffer [80]; - int i; - - sprintf (result, "%s%d ", recur_type_name [ical->recur->type], ical->recur->interval); - switch (ical->recur->type){ - case RECUR_DAILY: - break; - - case RECUR_WEEKLY: - for (i = 0; i < 7; i++){ - if (ical->recur->weekday & (1 << i)){ - sprintf (buffer, "%s ", recur_day_list [i]); - strcat (result, buffer); - } - } - break; - - case RECUR_MONTHLY_BY_POS: { - int nega = ical->recur->u.month_pos < 0; - - sprintf (buffer, "%d%s ", nega ? -ical->recur->u.month_pos : ical->recur->u.month_pos, - nega ? "-" : "+"); - strcat (result, buffer); - /* the gui is set up for a single day, not a set here in this case */ - sprintf (buffer, "%s ", recur_day_list [ical->recur->weekday]); - strcat (result, buffer); - } - break; - - case RECUR_MONTHLY_BY_DAY: - sprintf (buffer, "%d ", ical->recur->u.month_pos); - strcat (result, buffer); - break; - - case RECUR_YEARLY_BY_MONTH: - break; - - case RECUR_YEARLY_BY_DAY: - break; - } - if (ical->recur->_enddate == 0) - sprintf (buffer, "#%d ",ical->recur->duration); - else - sprintf (buffer, "%s ", isodate_from_time_t (ical->recur->_enddate)); - strcat (result, buffer); - addPropValue (o, VCRRuleProp, result); - } - - save_alarm (o, &ical->aalarm, ical); - save_alarm (o, &ical->dalarm, ical); - - if ((alarm = save_alarm (o, &ical->palarm, ical))) - addPropValue (alarm, VCProcedureNameProp, ical->palarm.data); - if ((alarm = save_alarm (o, &ical->malarm, ical))) - addPropValue (alarm, VCEmailAddressProp, ical->malarm.data); - return o; -} - -void -ical_foreach (GList *events, calendarfn fn, void *closure) -{ - for (; events; events = events->next){ - iCalObject *ical = events->data; - - (*fn) (ical, ical->dtstart, ical->dtend, closure); - } -} - -static int -is_date_in_list (GList *list, struct tm *date) -{ - struct tm *tm; - - for (; list; list = list->next){ - time_t *timep = list->data; - - tm = localtime (timep); - if (date->tm_mday == tm->tm_mday && - date->tm_mon == tm->tm_mon && - date->tm_year == tm->tm_year){ - return 1; - } - } - return 0; -} - -static int -generate (iCalObject *ico, time_t reference, calendarfn cb, void *closure) -{ - struct tm dt_start, dt_end, ref; - time_t s_t, e_t; - - dt_start = *localtime (&ico->dtstart); - dt_end = *localtime (&ico->dtend); - ref = *localtime (&reference); - - dt_start.tm_mday = ref.tm_mday; - dt_start.tm_mon = ref.tm_mon; - dt_start.tm_year = ref.tm_year; - - dt_end.tm_mday = ref.tm_mday; - dt_end.tm_mon = ref.tm_mon; - dt_end.tm_year = ref.tm_year; - - - if (ref.tm_isdst > dt_start.tm_isdst){ - dt_start.tm_hour--; - dt_end.tm_hour--; - } else if (ref.tm_isdst < dt_start.tm_isdst){ - dt_start.tm_hour++; - dt_end.tm_hour++; - } - - s_t = mktime (&dt_start); - - if (ico->exdate && is_date_in_list (ico->exdate, &dt_start)) - return 1; - - e_t = mktime (&dt_end); - - if ((s_t == -1) || (e_t == -1)) { - g_warning ("Produced invalid dates!\n"); - return 0; - } - - return (*cb) (ico, s_t, e_t, closure); -} - -int -ical_object_get_first_weekday (int weekday_mask) -{ - int i; - - for (i = 0; i < 7; i++) - if (weekday_mask & (1 << i)) - return i; - - return -1; -} - -#define time_in_range(t, a, b) ((t >= a) && (b ? (t < b) : 1)) -#define recur_in_range(t, r) (r->enddate ? (t < r->enddate) : 1) - -/* - * Generate every possible event. Invokes the callback routine for - * every occurrence of the event in the [START, END] time interval. - * - * If END is zero, the event is generated forever. - * The callback routine is expected to return 0 when no further event - * generation is requested. - */ -void -ical_object_generate_events (iCalObject *ico, time_t start, time_t end, calendarfn cb, void *closure) -{ - time_t current; - int first_week_day; - - /* If there is no recurrence, just check ranges */ - - if (!ico->recur) { - if ((end && (ico->dtstart < end) && (ico->dtend > start)) - || ((end == 0) && (ico->dtend > start))) { - time_t ev_s, ev_e; - - /* Clip range */ - - ev_s = MAX (ico->dtstart, start); - ev_e = MIN (ico->dtend, end); - - (* cb) (ico, ev_s, ev_e, closure); - } - return; - } - - /* The event has a recurrence rule -- check that we will generate at least one instance */ - - if (end != 0) { - if (ico->dtstart > end) - return; - - if (!IS_INFINITE (ico->recur) && (ico->recur->enddate < start)) - return; - } - - /* Generate the instances */ - - current = ico->dtstart; - - switch (ico->recur->type) { - case RECUR_DAILY: - do { - if (time_in_range (current, start, end) && recur_in_range (current, ico->recur)) - if (!generate (ico, current, cb, closure)) - return; - - /* Advance */ - - current = time_add_day (current, ico->recur->interval); - - if (current == -1) { - g_warning ("RECUR_DAILY: time_add_day() returned invalid time"); - return; - } - } while ((current < end) || (end == 0)); - - break; - - case RECUR_WEEKLY: - do { - struct tm *tm; - - tm = localtime (¤t); - - if (time_in_range (current, start, end) && recur_in_range (current, ico->recur)) { - /* Weekdays to recur on are specified as a bitmask */ - if (ico->recur->weekday & (1 << tm->tm_wday)) { - if (!generate (ico, current, cb, closure)) - return; - } - } - - /* Advance by day for scanning the week or by interval at week end */ - - if (tm->tm_wday == 6) - current = time_add_day (current, (ico->recur->interval - 1) * 7 + 1); - else - current = time_add_day (current, 1); - - if (current == -1) { - g_warning ("RECUR_WEEKLY: time_add_day() returned invalid time\n"); - return; - } - } while (current < end || (end == 0)); - - break; - - case RECUR_MONTHLY_BY_POS: - /* FIXME: We only deal with positives now */ - if (ico->recur->u.month_pos < 0) { - g_warning ("RECUR_MONTHLY_BY_POS does not support negative positions yet"); - return; - } - - if (ico->recur->u.month_pos == 0) - return; - - first_week_day = /* ical_object_get_first_weekday (ico->recur->weekday); */ - ico->recur->weekday; /* the i/f only lets you choose a single day of the week! */ - - /* This should not happen, but take it into account */ - if (first_week_day == -1) { - g_warning ("ical_object_get_first_weekday() returned -1"); - return; - } - - do { - struct tm tm; - time_t t; - int week_day_start; - - tm = *localtime (¤t); - tm.tm_mday = 1; - t = mktime (&tm); - tm = *localtime (&t); - week_day_start = tm.tm_wday; - - tm.tm_mday = (7 * (ico->recur->u.month_pos - ((week_day_start <= first_week_day ) ? 1 : 0)) - - (week_day_start - first_week_day) + 1); - if( tm.tm_mday > 31 ) - { - tm.tm_mday = 1; - tm.tm_mon += ico->recur->interval; - current = mktime (&tm); - continue; - } - - switch( tm.tm_mon ) - { - case 3: - case 5: - case 8: - case 10: - if( tm.tm_mday > 30 ) - { - tm.tm_mday = 1; - tm.tm_mon += ico->recur->interval; - current = mktime (&tm); - continue; - } - break; - case 1: - if( ((tm.tm_year+1900)%4) == 0 - && ((tm.tm_year+1900)%400) != 100 - && ((tm.tm_year+1900)%400) != 200 - && ((tm.tm_year+1900)%400) != 300 ) - { - - if( tm.tm_mday > 29 ) - { - tm.tm_mday = 1; - tm.tm_mon += ico->recur->interval; - current = mktime (&tm); - continue; - } - } - else - { - if( tm.tm_mday > 28 ) - { - tm.tm_mday = 1; - tm.tm_mon += ico->recur->interval; - current = mktime (&tm); - continue; - } - } - break; - } - - t = mktime (&tm); - - if (time_in_range (t, start, end) && recur_in_range (current, ico->recur)) - if (!generate (ico, t, cb, closure)) - return; - - /* Advance by the appropriate number of months */ - - current = mktime (&tm); - - tm.tm_mday = 1; - tm.tm_mon += ico->recur->interval; - current = mktime (&tm); - - if (current == -1) { - g_warning ("RECUR_MONTHLY_BY_DAY: mktime error\n"); - return; - } - } while ((current < end) || (end == 0)); - - break; - - case RECUR_MONTHLY_BY_DAY: - do { - struct tm *tm; - time_t t; - int p; - - tm = localtime (¤t); - - p = tm->tm_mday; - tm->tm_mday = ico->recur->u.month_day; - t = mktime (tm); - if (time_in_range (t, start, end) && recur_in_range (current, ico->recur)) - if (!generate (ico, t, cb, closure)) - return; - - /* Advance by the appropriate number of months */ - - tm->tm_mday = p; - tm->tm_mon += ico->recur->interval; - current = mktime (tm); - - if (current == -1) { - g_warning ("RECUR_MONTHLY_BY_DAY: mktime error\n"); - return; - } - } while (current < end || (end == 0)); - - break; - - case RECUR_YEARLY_BY_MONTH: - case RECUR_YEARLY_BY_DAY: - do { - if (time_in_range (current, start, end) && recur_in_range (current, ico->recur)) - if (!generate (ico, current, cb, closure)) - return; - - /* Advance */ - - current = time_add_year (current, ico->recur->interval); - } while (current < end || (end == 0)); - - break; - - default: - g_assert_not_reached (); - } -} - -static int -duration_callback (iCalObject *ico, time_t start, time_t end, void *closure) -{ - int *count = closure; - struct tm *tm; - - tm = localtime (&start); - - (*count)++; - if (ico->recur->duration == *count) { - ico->recur->enddate = time_day_end (end); - return 0; - } - return 1; -} - -/* Computes ico->recur->enddate from ico->recur->duration */ -void -ical_object_compute_end (iCalObject *ico) -{ - int count = 0; - - g_return_if_fail (ico->recur != NULL); - - ico->recur->_enddate = 0; - ico->recur->enddate = 0; - ical_object_generate_events (ico, ico->dtstart, 0, duration_callback, &count); -} - -int -alarm_compute_offset (CalendarAlarm *a) -{ - if (!a->enabled) - return -1; - switch (a->units){ - case ALARM_MINUTES: - a->offset = a->count * 60; - break; - case ALARM_HOURS: - a->offset = a->count * 3600; - break; - case ALARM_DAYS: - a->offset = a->count * 24 * 3600; - } - return a->offset; -} |