Rename appointment/event-related UI functions

* Rename "interaction.c" to "ui-day.c" since it no longer contains
  todo-related UI functions.

* Rename appointment/event-related UI functions to ui_day_*().

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

1 files changed, 798 insertions, 0 deletions

diff --git a/src/ui-day.c b/src/ui-day.c
new file mode 100644
index 0000000..caf272b
--- /dev/null
+++ b/src/ui-day.c
@@ -0,0 +1,798 @@
+/*
+ * Calcurse - text-based organizer
+ *
+ * Copyright (c) 2004-2013 calcurse Development Team <misc@calcurse.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the
+ *        following disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the
+ *        following disclaimer in the documentation and/or other
+ *        materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Send your feedback or comments to : misc@calcurse.org
+ * Calcurse home page : http://calcurse.org
+ *
+ */
+
+#include "calcurse.h"
+
+struct day_item day_cut[38] = { { 0, 0, { NULL } } };
+
+/* Request the user to enter a new time. */
+static int day_edit_time(int time, unsigned *new_hour, unsigned *new_minute)
+{
+  char *timestr = date_sec2date_str(time, "%H:%M");
+  const char *msg_time = _("Enter the new time ([hh:mm] or [hhmm]) : ");
+  const char *enter_str = _("Press [Enter] to continue");
+  const char *fmt_msg = _("You entered an invalid time, should be [hh:mm] or [hhmm]");
+
+  for (;;) {
+    status_mesg(msg_time, "");
+    if (updatestring(win[STA].p, &timestr, 0, 1) == GETSTRING_VALID) {
+      if (parse_time(timestr, new_hour, new_minute) == 1) {
+        mem_free(timestr);
+        return 1;
+      } else {
+        status_mesg(fmt_msg, enter_str);
+        wgetch(win[KEY].p);
+      }
+    } else
+      return 0;
+  }
+}
+
+/* Request the user to enter a new time or duration. */
+static int day_edit_duration(int start, int dur, unsigned *new_duration)
+{
+  char *timestr = date_sec2date_str(start + dur, "%H:%M");
+  const char *msg_time =
+      _
+      ("Enter new end time ([hh:mm], [hhmm]) or duration ([+hh:mm], [+xxxdxxhxxm] or [+mm]) : ");
+  const char *enter_str = _("Press [Enter] to continue");
+  const char *fmt_msg = _("You entered an invalid time, should be [hh:mm] or [hhmm]");
+  long newtime;
+  unsigned hr, mn;
+
+  for (;;) {
+    status_mesg(msg_time, "");
+    if (updatestring(win[STA].p, &timestr, 0, 1) == GETSTRING_VALID) {
+      if (*timestr == '+' && parse_duration(timestr + 1, new_duration) == 1) {
+        *new_duration *= MININSEC;
+        break;
+      } else if (parse_time(timestr, &hr, &mn) == 1) {
+        newtime = update_time_in_date(start + dur, hr, mn);
+        *new_duration = (newtime > start) ? newtime - start :
+            DAYINSEC + newtime - start;
+        break;
+      } else {
+        status_mesg(fmt_msg, enter_str);
+        wgetch(win[KEY].p);
+      }
+    } else
+      return 0;
+  }
+
+  mem_free(timestr);
+  return 1;
+}
+
+/* Request the user to enter a new end time or duration. */
+static void update_start_time(long *start, long *dur)
+{
+  long newtime;
+  unsigned hr, mn;
+  int valid_date;
+  const char *msg_wrong_time =
+      _("Invalid time: start time must be before end time!");
+  const char *msg_enter = _("Press [Enter] to continue");
+
+  do {
+    if (!day_edit_time(*start, &hr, &mn))
+      break;
+    newtime = update_time_in_date(*start, hr, mn);
+    if (newtime < *start + *dur) {
+      *dur -= (newtime - *start);
+      *start = newtime;
+      valid_date = 1;
+    } else {
+      status_mesg(msg_wrong_time, msg_enter);
+      wgetch(win[KEY].p);
+      valid_date = 0;
+    }
+  }
+  while (valid_date == 0);
+}
+
+static void update_duration(long *start, long *dur)
+{
+  unsigned newdur;
+
+  if (day_edit_duration(*start, *dur, &newdur))
+    *dur = newdur;
+}
+
+static void update_desc(char **desc)
+{
+  status_mesg(_("Enter the new item description:"), "");
+  updatestring(win[STA].p, desc, 0, 1);
+}
+
+static void update_rept(struct rpt **rpt, const long start)
+{
+  int newtype, newfreq, date_entered;
+  long newuntil;
+  char outstr[BUFSIZ];
+  char *freqstr, *timstr;
+  const char *msg_rpt_prefix = _("Enter the new repetition type:");
+  const char *msg_rpt_daily = _("(d)aily");
+  const char *msg_rpt_weekly = _("(w)eekly");
+  const char *msg_rpt_monthly = _("(m)onthly");
+  const char *msg_rpt_yearly = _("(y)early");
+
+  /* Find the current repetition type. */
+  const char *rpt_current;
+  char msg_rpt_current[BUFSIZ];
+  switch (recur_def2char((*rpt)->type)) {
+  case 'D':
+    rpt_current = msg_rpt_daily;
+    break;
+  case 'W':
+    rpt_current = msg_rpt_weekly;
+    break;
+  case 'M':
+    rpt_current = msg_rpt_monthly;
+    break;
+  case 'Y':
+    rpt_current = msg_rpt_yearly;
+    break;
+  default:
+    /* NOTREACHED, but makes the compiler happier. */
+    rpt_current = msg_rpt_daily;
+  }
+
+  snprintf(msg_rpt_current, BUFSIZ, _("(currently using %s)"), rpt_current);
+
+  char msg_rpt_asktype[BUFSIZ];
+  snprintf(msg_rpt_asktype, BUFSIZ, "%s %s, %s, %s, %s ? %s",
+           msg_rpt_prefix,
+           msg_rpt_daily,
+           msg_rpt_weekly, msg_rpt_monthly, msg_rpt_yearly, msg_rpt_current);
+
+  const char *msg_rpt_choice = _("[dwmy]");
+  const char *msg_wrong_freq = _("The frequence you entered is not valid.");
+  const char *msg_wrong_time =
+      _("Invalid time: start time must be before end time!");
+  const char *msg_wrong_date = _("The entered date is not valid.");
+  const char *msg_fmts =
+      _("Possible formats are [%s] or '0' for an endless repetition.");
+  const char *msg_enter = _("Press [Enter] to continue");
+
+  switch (status_ask_choice(msg_rpt_asktype, msg_rpt_choice, 4)) {
+  case 1:
+    newtype = 'D';
+    break;
+  case 2:
+    newtype = 'W';
+    break;
+  case 3:
+    newtype = 'M';
+    break;
+  case 4:
+    newtype = 'Y';
+    break;
+  default:
+    return;
+  }
+
+  do {
+    status_mesg(_("Enter the new repetition frequence:"), "");
+    freqstr = mem_malloc(BUFSIZ);
+    snprintf(freqstr, BUFSIZ, "%d", (*rpt)->freq);
+    if (updatestring(win[STA].p, &freqstr, 0, 1) == GETSTRING_VALID) {
+      newfreq = atoi(freqstr);
+      mem_free(freqstr);
+      if (newfreq == 0) {
+        status_mesg(msg_wrong_freq, msg_enter);
+        wgetch(win[KEY].p);
+      }
+    } else {
+      mem_free(freqstr);
+      return;
+    }
+  }
+  while (newfreq == 0);
+
+  do {
+    snprintf(outstr, BUFSIZ, _("Enter the new ending date: [%s] or '0'"),
+             DATEFMT_DESC(conf.input_datefmt));
+    status_mesg(outstr, "");
+    timstr = date_sec2date_str((*rpt)->until, DATEFMT(conf.input_datefmt));
+    if (updatestring(win[STA].p, &timstr, 0, 1) != GETSTRING_VALID) {
+      mem_free(timstr);
+      return;
+    }
+    if (strcmp(timstr, "0") == 0) {
+      newuntil = 0;
+      date_entered = 1;
+    } else {
+      struct tm lt;
+      time_t t;
+      struct date new_date;
+      int newmonth, newday, newyear;
+
+      if (parse_date(timstr, conf.input_datefmt, &newyear, &newmonth,
+                     &newday, calendar_get_slctd_day())) {
+        t = start;
+        localtime_r(&t, &lt);
+        new_date.dd = newday;
+        new_date.mm = newmonth;
+        new_date.yyyy = newyear;
+        newuntil = date2sec(new_date, lt.tm_hour, lt.tm_min);
+        if (newuntil < start) {
+          status_mesg(msg_wrong_time, msg_enter);
+          wgetch(win[KEY].p);
+          date_entered = 0;
+        } else
+          date_entered = 1;
+      } else {
+        snprintf(outstr, BUFSIZ, msg_fmts, DATEFMT_DESC(conf.input_datefmt));
+        status_mesg(msg_wrong_date, outstr);
+        wgetch(win[KEY].p);
+        date_entered = 0;
+      }
+    }
+  }
+  while (date_entered == 0);
+
+  mem_free(timstr);
+  (*rpt)->type = recur_char2def(newtype);
+  (*rpt)->freq = newfreq;
+  (*rpt)->until = newuntil;
+}
+
+/* Edit an already existing item. */
+void ui_day_item_edit(void)
+{
+  struct day_item *p;
+  struct recur_event *re;
+  struct event *e;
+  struct recur_apoint *ra;
+  struct apoint *a;
+  int need_check_notify = 0;
+
+  p = day_get_item(apoint_hilt());
+
+  switch (p->type) {
+  case RECUR_EVNT:
+    re = p->item.rev;
+    const char *choice_recur_evnt[2] = {
+      _("Description"),
+      _("Repetition"),
+    };
+    switch (status_ask_simplechoice(_("Edit: "), choice_recur_evnt, 2)) {
+    case 1:
+      update_desc(&re->mesg);
+      break;
+    case 2:
+      update_rept(&re->rpt, re->day);
+      break;
+    default:
+      return;
+    }
+    break;
+  case EVNT:
+    e = p->item.ev;
+    update_desc(&e->mesg);
+    break;
+  case RECUR_APPT:
+    ra = p->item.rapt;
+    const char *choice_recur_appt[4] = {
+      _("Start time"),
+      _("End time"),
+      _("Description"),
+      _("Repetition"),
+    };
+    switch (status_ask_simplechoice(_("Edit: "), choice_recur_appt, 4)) {
+    case 1:
+      need_check_notify = 1;
+      update_start_time(&ra->start, &ra->dur);
+      break;
+    case 2:
+      update_duration(&ra->start, &ra->dur);
+      break;
+    case 3:
+      if (notify_bar())
+        need_check_notify = notify_same_recur_item(ra);
+      update_desc(&ra->mesg);
+      break;
+    case 4:
+      need_check_notify = 1;
+      update_rept(&ra->rpt, ra->start);
+      break;
+    default:
+      return;
+    }
+    break;
+  case APPT:
+    a = p->item.apt;
+    const char *choice_appt[3] = {
+      _("Start time"),
+      _("End time"),
+      _("Description"),
+    };
+    switch (status_ask_simplechoice(_("Edit: "), choice_appt, 3)) {
+    case 1:
+      need_check_notify = 1;
+      update_start_time(&a->start, &a->dur);
+      break;
+    case 2:
+      update_duration(&a->start, &a->dur);
+      break;
+    case 3:
+      if (notify_bar())
+        need_check_notify = notify_same_item(a->start);
+      update_desc(&a->mesg);
+      break;
+    default:
+      return;
+    }
+    break;
+  }
+
+  calendar_monthly_view_cache_set_invalid();
+
+  if (need_check_notify)
+    notify_check_next_app(1);
+}
+
+/* Pipe an appointment or event to an external program. */
+void ui_day_item_pipe(void)
+{
+  char cmd[BUFSIZ] = "";
+  char const *arg[] = { cmd, NULL };
+  int pout;
+  int pid;
+  FILE *fpout;
+  struct day_item *p;
+
+  status_mesg(_("Pipe item to external command:"), "");
+  if (getstring(win[STA].p, cmd, BUFSIZ, 0, 1) != GETSTRING_VALID)
+    return;
+
+  wins_prepare_external();
+  if ((pid = shell_exec(NULL, &pout, *arg, arg))) {
+    fpout = fdopen(pout, "w");
+
+    p = day_get_item(apoint_hilt());
+    switch (p->type) {
+    case RECUR_EVNT:
+      recur_event_write(p->item.rev, fpout);
+      break;
+    case EVNT:
+      event_write(p->item.ev, fpout);
+      break;
+    case RECUR_APPT:
+      recur_apoint_write(p->item.rapt, fpout);
+      break;
+    case APPT:
+      apoint_write(p->item.apt, fpout);
+      break;
+    }
+
+    fclose(fpout);
+    child_wait(NULL, &pout, pid);
+    press_any_key();
+  }
+  wins_unprepare_external();
+}
+
+/*
+ * Add an item in either the appointment or the event list,
+ * depending if the start time is entered or not.
+ */
+void ui_day_item_add(void)
+{
+#define LTIME 6
+#define LDUR 12
+  const char *mesg_1 =
+      _("Enter start time ([hh:mm] or [hhmm]), leave blank for an all-day event : ");
+  const char *mesg_2 =
+      _
+      ("Enter end time ([hh:mm] or [hhmm]) or duration ([+hh:mm], [+xxxdxxhxxm] or [+mm]) : ");
+  const char *mesg_3 = _("Enter description :");
+  const char *format_message_1 =
+      _("You entered an invalid start time, should be [hh:mm] or [hhmm]");
+  const char *format_message_2 =
+      _
+      ("Invalid end time/duration, should be [hh:mm], [hhmm], [+hh:mm], [+xxxdxxhxxm] or [+mm]");
+  const char *enter_str = _("Press [Enter] to continue");
+  int Id = 1;
+  char item_time[LDUR] = "";
+  char item_mesg[BUFSIZ] = "";
+  long apoint_start;
+  unsigned heures, minutes;
+  unsigned apoint_duration;
+  unsigned end_h, end_m;
+  int is_appointment = 1;
+
+  /* Get the starting time */
+  for (;;) {
+    status_mesg(mesg_1, "");
+    if (getstring(win[STA].p, item_time, LTIME, 0, 1) != GETSTRING_ESC) {
+      if (strlen(item_time) == 0) {
+        is_appointment = 0;
+        break;
+      }
+
+      if (parse_time(item_time, &heures, &minutes) == 1)
+        break;
+      else {
+        status_mesg(format_message_1, enter_str);
+        wgetch(win[KEY].p);
+      }
+    } else
+      return;
+  }
+
+  /*
+   * Check if an event or appointment is entered,
+   * depending on the starting time, and record the
+   * corresponding item.
+   */
+  if (is_appointment) {         /* Get the appointment duration */
+    item_time[0] = '\0';
+    for (;;) {
+      status_mesg(mesg_2, "");
+      if (getstring(win[STA].p, item_time, LDUR, 0, 1) != GETSTRING_ESC) {
+        if (*item_time == '+' && parse_duration(item_time + 1,
+                                                &apoint_duration) == 1)
+          break;
+        else if (parse_time(item_time, &end_h, &end_m) == 1) {
+          if (end_h < heures || ((end_h == heures) && (end_m < minutes))) {
+            apoint_duration = MININSEC - minutes + end_m
+                + (24 + end_h - (heures + 1)) * MININSEC;
+          } else {
+            apoint_duration = MININSEC - minutes
+                + end_m + (end_h - (heures + 1)) * MININSEC;
+          }
+          break;
+        } else {
+          status_mesg(format_message_2, enter_str);
+          wgetch(win[KEY].p);
+        }
+      } else
+        return;
+    }
+  } else                        /* Insert the event Id */
+    Id = 1;
+
+  status_mesg(mesg_3, "");
+  if (getstring(win[STA].p, item_mesg, BUFSIZ, 0, 1) == GETSTRING_VALID) {
+    if (is_appointment) {
+      apoint_start = date2sec(*calendar_get_slctd_day(), heures, minutes);
+      apoint_new(item_mesg, 0L, apoint_start, min2sec(apoint_duration), 0L);
+      if (notify_bar())
+        notify_check_added(item_mesg, apoint_start, 0L);
+    } else
+      event_new(item_mesg, 0L, date2sec(*calendar_get_slctd_day(), 0, 0), Id);
+
+    if (apoint_hilt() == 0)
+      apoint_hilt_increase(1);
+  }
+
+  calendar_monthly_view_cache_set_invalid();
+
+  wins_erase_status_bar();
+}
+
+/* Delete an item from the appointment list. */
+void ui_day_item_delete(unsigned *nb_events, unsigned *nb_apoints,
+                              unsigned reg)
+{
+  const char *del_app_str = _("Do you really want to delete this item ?");
+
+  const char *erase_warning =
+      _("This item is recurrent. "
+        "Delete (a)ll occurences or just this (o)ne ?");
+  const char *erase_choices = _("[ao]");
+  const int nb_erase_choices = 2;
+
+  const char *note_warning =
+      _("This item has a note attached to it. "
+        "Delete (i)tem or just its (n)ote ?");
+  const char *note_choices = _("[in]");
+  const int nb_note_choices = 2;
+
+  long date = calendar_get_slctd_day_sec();
+  int nb_items = *nb_apoints + *nb_events;
+  int to_be_removed = 0;
+
+  if (nb_items == 0)
+    return;
+
+  struct day_item *p = day_get_item(apoint_hilt());
+
+  if (conf.confirm_delete) {
+    if (status_ask_bool(del_app_str) != 1) {
+      wins_erase_status_bar();
+      return;
+    }
+  }
+
+  if (day_item_get_note(p)) {
+    switch (status_ask_choice(note_warning, note_choices, nb_note_choices)) {
+    case 1:
+      break;
+    case 2:
+      day_item_erase_note(p);
+      return;
+    default:                   /* User escaped */
+      return;
+    }
+  }
+
+  if (p->type == RECUR_EVNT || p->type == RECUR_APPT) {
+    switch (status_ask_choice(erase_warning, erase_choices, nb_erase_choices)) {
+    case 1:
+      break;
+    case 2:
+      day_item_add_exc(p, date);
+      return;
+    default:
+      return;
+    }
+  }
+
+  ui_day_item_cut_free(reg);
+  p = day_cut_item(date, apoint_hilt());
+  day_cut[reg].type = p->type;
+  day_cut[reg].item = p->item;
+
+  switch (p->type) {
+  case EVNT:
+  case RECUR_EVNT:
+    (*nb_events)--;
+    to_be_removed = 1;
+    break;
+  case APPT:
+  case RECUR_APPT:
+    (*nb_apoints)--;
+    to_be_removed = 3;
+    break;
+  default:
+    EXIT(_("no such type"));
+    /* NOTREACHED */
+  }
+
+  calendar_monthly_view_cache_set_invalid();
+
+  if (apoint_hilt() > 1)
+    apoint_hilt_decrease(1);
+  if (apad.first_onscreen >= to_be_removed)
+    apad.first_onscreen = apad.first_onscreen - to_be_removed;
+  if (nb_items == 1)
+    apoint_hilt_set(0);
+}
+
+/*
+ * Ask user for repetition characteristics:
+ * 	o repetition type: daily, weekly, monthly, yearly
+ *	o repetition frequence: every X days, weeks, ...
+ *	o repetition end date
+ * and then delete the selected item to recreate it as a recurrent one
+ */
+void ui_day_item_repeat(void)
+{
+  struct tm lt;
+  time_t t;
+  int date_entered = 0;
+  int year = 0, month = 0, day = 0;
+  struct date until_date;
+  char outstr[BUFSIZ];
+  char user_input[BUFSIZ] = "";
+  const char *msg_rpt_prefix = _("Enter the repetition type:");
+  const char *msg_rpt_daily = _("(d)aily");
+  const char *msg_rpt_weekly = _("(w)eekly");
+  const char *msg_rpt_monthly = _("(m)onthly");
+  const char *msg_rpt_yearly = _("(y)early");
+  const char *msg_type_choice = _("[dwmy]");
+  const char *mesg_freq_1 = _("Enter the repetition frequence:");
+  const char *mesg_wrong_freq = _("The frequence you entered is not valid.");
+  const char *mesg_until_1 =
+      _("Enter the ending date: [%s] or '0' for an endless repetition");
+  const char *mesg_wrong_1 = _("The entered date is not valid.");
+  const char *mesg_wrong_2 =
+      _("Possible formats are [%s] or '0' for an endless repetition");
+  const char *wrong_type_1 = _("This item is already a repeated one.");
+  const char *wrong_type_2 = _("Press [ENTER] to continue.");
+  const char *mesg_older =
+      _("Sorry, the date you entered is older than the item start time.");
+
+  char msg_asktype[BUFSIZ];
+  snprintf(msg_asktype, BUFSIZ, "%s %s, %s, %s, %s",
+           msg_rpt_prefix,
+           msg_rpt_daily, msg_rpt_weekly, msg_rpt_monthly, msg_rpt_yearly);
+
+  int type = 0, freq = 0;
+  int item_nb;
+  struct day_item *p;
+  struct recur_apoint *ra;
+  long until, date;
+
+  item_nb = apoint_hilt();
+  p = day_get_item(item_nb);
+  if (p->type != APPT && p->type != EVNT) {
+    status_mesg(wrong_type_1, wrong_type_2);
+    wgetch(win[KEY].p);
+    return;
+  }
+
+  switch (status_ask_choice(msg_asktype, msg_type_choice, 4)) {
+  case 1:
+    type = RECUR_DAILY;
+    break;
+  case 2:
+    type = RECUR_WEEKLY;
+    break;
+  case 3:
+    type = RECUR_MONTHLY;
+    break;
+  case 4:
+    type = RECUR_YEARLY;
+    break;
+  default:
+    return;
+  }
+
+  while (freq == 0) {
+    status_mesg(mesg_freq_1, "");
+    if (getstring(win[STA].p, user_input, BUFSIZ, 0, 1) == GETSTRING_VALID) {
+      freq = atoi(user_input);
+      if (freq == 0) {
+        status_mesg(mesg_wrong_freq, wrong_type_2);
+        wgetch(win[KEY].p);
+      }
+      user_input[0] = '\0';
+    } else
+      return;
+  }
+
+  while (!date_entered) {
+    snprintf(outstr, BUFSIZ, mesg_until_1, DATEFMT_DESC(conf.input_datefmt));
+    status_mesg(outstr, "");
+    if (getstring(win[STA].p, user_input, BUFSIZ, 0, 1) == GETSTRING_VALID) {
+      if (strlen(user_input) == 1 && strcmp(user_input, "0") == 0) {
+        until = 0;
+        date_entered = 1;
+      } else {
+        if (parse_date(user_input, conf.input_datefmt,
+                       &year, &month, &day, calendar_get_slctd_day())) {
+          t = p->start;
+          localtime_r(&t, &lt);
+          until_date.dd = day;
+          until_date.mm = month;
+          until_date.yyyy = year;
+          until = date2sec(until_date, lt.tm_hour, lt.tm_min);
+          if (until < p->start) {
+            status_mesg(mesg_older, wrong_type_2);
+            wgetch(win[KEY].p);
+            date_entered = 0;
+          } else {
+            date_entered = 1;
+          }
+        } else {
+          snprintf(outstr, BUFSIZ, mesg_wrong_2,
+                   DATEFMT_DESC(conf.input_datefmt));
+          status_mesg(mesg_wrong_1, outstr);
+          wgetch(win[KEY].p);
+          date_entered = 0;
+        }
+      }
+    } else
+      return;
+  }
+
+  date = calendar_get_slctd_day_sec();
+  if (p->type == EVNT) {
+    struct event *ev = p->item.ev;
+    recur_event_new(ev->mesg, ev->note, ev->day, ev->id, type, freq, until,
+                    NULL);
+  } else if (p->type == APPT) {
+    struct apoint *apt = p->item.apt;
+    ra = recur_apoint_new(apt->mesg, apt->note, apt->start, apt->dur,
+                          apt->state, type, freq, until, NULL);
+    if (notify_bar())
+      notify_check_repeated(ra);
+  } else {
+    EXIT(_("wrong item type"));
+    /* NOTREACHED */
+  }
+
+  ui_day_item_cut_free(REG_BLACK_HOLE);
+  p = day_cut_item(date, item_nb);
+  day_cut[REG_BLACK_HOLE].type = p->type;
+  day_cut[REG_BLACK_HOLE].item = p->item;
+
+  calendar_monthly_view_cache_set_invalid();
+}
+
+/* Free the current cut item, if any. */
+void ui_day_item_cut_free(unsigned reg)
+{
+  switch (day_cut[reg].type) {
+  case 0:
+    /* No previous item, don't free anything. */
+    break;
+  case APPT:
+    apoint_free(day_cut[reg].item.apt);
+    break;
+  case EVNT:
+    event_free(day_cut[reg].item.ev);
+    break;
+  case RECUR_APPT:
+    recur_apoint_free(day_cut[reg].item.rapt);
+    break;
+  case RECUR_EVNT:
+    recur_event_free(day_cut[reg].item.rev);
+    break;
+  }
+}
+
+/* Copy an item, so that it can be pasted somewhere else later. */
+void ui_day_item_copy(unsigned *nb_events, unsigned *nb_apoints,
+                            unsigned reg)
+{
+  const int NBITEMS = *nb_apoints + *nb_events;
+
+  if (NBITEMS == 0 || reg == REG_BLACK_HOLE)
+    return;
+
+  ui_day_item_cut_free(reg);
+  day_item_fork(day_get_item(apoint_hilt()), &day_cut[reg]);
+}
+
+/* Paste a previously cut item. */
+void ui_day_item_paste(unsigned *nb_events, unsigned *nb_apoints,
+                             unsigned reg)
+{
+  int item_type;
+  struct day_item day;
+
+  if (reg == REG_BLACK_HOLE || !day_cut[reg].type)
+    return;
+
+  day_item_fork(&day_cut[reg], &day);
+  item_type = day_paste_item(&day, calendar_get_slctd_day_sec());
+
+  calendar_monthly_view_cache_set_invalid();
+
+  if (item_type == EVNT || item_type == RECUR_EVNT)
+    (*nb_events)++;
+  else if (item_type == APPT || item_type == RECUR_APPT)
+    (*nb_apoints)++;
+  else
+    return;
+
+  if (apoint_hilt() == 0)
+    apoint_hilt_increase(1);
+}