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path: root/src/ui-day.c
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/*
 * 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"

static int hilt;
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)
      return 0;
    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);
    }
  }
}

/* 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)
      return 0;
    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);
    }
  }

  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;
  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) {
      mem_free(freqstr);
      return;
    }
    newfreq = atoi(freqstr);
    mem_free(freqstr);
    if (newfreq == 0) {
      status_mesg(msg_wrong_freq, msg_enter);
      wgetch(win[KEY].p);
    }
  }
  while (newfreq == 0);

  for (;;) {
    struct tm lt;
    time_t t;
    struct date new_date;
    int newmonth, newday, newyear;

    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;
      break;
    }
    if (!parse_date(timstr, conf.input_datefmt, &newyear, &newmonth,
                    &newday, ui_calendar_get_slctd_day())) {
      snprintf(outstr, BUFSIZ, msg_fmts, DATEFMT_DESC(conf.input_datefmt));
      status_mesg(msg_wrong_date, outstr);
      wgetch(win[KEY].p);
      continue;
    }
    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)
      break;
    status_mesg(msg_wrong_time, msg_enter);
    wgetch(win[KEY].p);
  }

  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(ui_day_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;
  }

  ui_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(ui_day_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");
  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)
      return;
    if (strlen(item_time) == 0) {
      is_appointment = 0;
      break;
    }
    if (parse_time(item_time, &heures, &minutes) == 1)
      break;
    status_mesg(format_message_1, enter_str);
    wgetch(win[KEY].p);
  }

  /*
   * 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)
        return;
      if (*item_time == '+' && parse_duration(item_time + 1,
                                              &apoint_duration) == 1)
          break;
      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;
      }
      status_mesg(format_message_2, enter_str);
      wgetch(win[KEY].p);
    }
  }

  status_mesg(mesg_3, "");
  if (getstring(win[STA].p, item_mesg, BUFSIZ, 0, 1) == GETSTRING_VALID) {
    if (is_appointment) {
      apoint_start = date2sec(*ui_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(*ui_calendar_get_slctd_day(), 0, 0), 1);
    }

    if (ui_day_hilt() == 0)
      ui_day_hilt_increase(1);
  }

  ui_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 = ui_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(ui_day_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, ui_day_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 */
  }

  ui_calendar_monthly_view_cache_set_invalid();

  if (ui_day_hilt() > 1)
    ui_day_hilt_decrease(1);
  if (apad.first_onscreen >= to_be_removed)
    apad.first_onscreen = apad.first_onscreen - to_be_removed;
  if (nb_items == 1)
    ui_day_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 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 = ui_day_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)
      return;
    freq = atoi(user_input);
    if (freq == 0) {
      status_mesg(mesg_wrong_freq, wrong_type_2);
      wgetch(win[KEY].p);
    }
    user_input[0] = '\0';
  }

  for (;;) {
    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)
      return;
    if (strlen(user_input) == 1 && strcmp(user_input, "0") == 0) {
      until = 0;
      break;
    }
    if (parse_date(user_input, conf.input_datefmt,
                   &year, &month, &day, ui_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)
        break;
      status_mesg(mesg_older, wrong_type_2);
      wgetch(win[KEY].p);
    } else {
      snprintf(outstr, BUFSIZ, mesg_wrong_2, DATEFMT_DESC(conf.input_datefmt));
      status_mesg(mesg_wrong_1, outstr);
      wgetch(win[KEY].p);
    }
  }

  date = ui_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;

  ui_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(ui_day_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, ui_calendar_get_slctd_day_sec());

  ui_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 (ui_day_hilt() == 0)
    ui_day_hilt_increase(1);
}

/* Sets which appointment is highlighted. */
void ui_day_hilt_set(int highlighted)
{
  hilt = highlighted;
}

void ui_day_hilt_decrease(int n)
{
  hilt -= n;
}

void ui_day_hilt_increase(int n)
{
  hilt += n;
}

/* Return which appointment is highlighted. */
int ui_day_hilt(void)
{
  return hilt;
}

/*
 * Return the line number of an item (either an appointment or an event) in
 * the appointment panel. This is to help the appointment scroll function
 * to place beggining of the pad correctly.
 */
static int get_item_line(int item_nb, int nb_events_inday)
{
  int separator = 2;
  int line = 0;

  if (item_nb <= nb_events_inday)
    line = item_nb - 1;
  else
    line = nb_events_inday + separator
        + (item_nb - (nb_events_inday + 1)) * 3 - 1;
  return line;
}

/*
 * Update (if necessary) the first displayed pad line to make the
 * appointment panel scroll down next time pnoutrefresh is called.
 */
void ui_day_scroll_pad_down(int nb_events_inday, int win_length)
{
  int pad_last_line = 0;
  int item_first_line = 0, item_last_line = 0;
  int borders = 6;
  int awin_length = win_length - borders;

  item_first_line = get_item_line(hilt, nb_events_inday);
  if (hilt < nb_events_inday)
    item_last_line = item_first_line;
  else
    item_last_line = item_first_line + 1;
  pad_last_line = apad.first_onscreen + awin_length;
  if (item_last_line >= pad_last_line)
    apad.first_onscreen = item_last_line - awin_length;
}

/*
 * Update (if necessary) the first displayed pad line to make the
 * appointment panel scroll up next time pnoutrefresh is called.
 */
void ui_day_scroll_pad_up(int nb_events_inday)
{
  int item_first_line = 0;

  item_first_line = get_item_line(hilt, nb_events_inday);
  if (item_first_line < apad.first_onscreen)
    apad.first_onscreen = item_first_line;
}

/* Updates the Appointment panel */
void ui_day_update_panel(int which_pan)
{
  int title_xpos;
  int bordr = 1;
  int title_lines = conf.compact_panels ? 1 : 3;
  int app_width = win[APP].w - bordr;
  int app_length = win[APP].h - bordr - title_lines;
  long date;
  struct date slctd_date;

  /* variable inits */
  slctd_date = *ui_calendar_get_slctd_day();
  title_xpos = win[APP].w - (strlen(_(monthnames[slctd_date.mm - 1])) + 16);
  if (slctd_date.dd < 10)
    title_xpos++;
  date = date2sec(slctd_date, 0, 0);
  day_write_pad(date, app_width, app_length, (which_pan == APP) ? hilt : 0);

  /* Print current date in the top right window corner. */
  erase_window_part(win[APP].p, 1, title_lines, win[APP].w - 2, win[APP].h - 2);
  custom_apply_attr(win[APP].p, ATTR_HIGHEST);
  mvwprintw(win[APP].p, title_lines, title_xpos, "%s  %s %d, %d",
            ui_calendar_get_pom(date), _(monthnames[slctd_date.mm - 1]),
            slctd_date.dd, slctd_date.yyyy);
  custom_remove_attr(win[APP].p, ATTR_HIGHEST);

  /* Draw the scrollbar if necessary. */
  if ((apad.length >= app_length) || (apad.first_onscreen > 0)) {
    int sbar_length = app_length * app_length / apad.length;
    int highend = app_length * apad.first_onscreen / apad.length;
    unsigned hilt_bar = (which_pan == APP) ? 1 : 0;
    int sbar_top = highend + title_lines + 1;

    if ((sbar_top + sbar_length) > win[APP].h - 1)
      sbar_length = win[APP].h - 1 - sbar_top;
    draw_scrollbar(win[APP].p, sbar_top, win[APP].w - 2, sbar_length,
                   title_lines + 1, win[APP].h - 1, hilt_bar);
  }

  wnoutrefresh(win[APP].p);
  pnoutrefresh(apad.ptrwin, apad.first_onscreen, 0,
               win[APP].y + title_lines + 1, win[APP].x + bordr,
               win[APP].y + win[APP].h - 2 * bordr,
               win[APP].x + win[APP].w - 3 * bordr);
}