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/* $calcurse: calendar.c,v 1.1 2006/07/31 21:00:02 culot Exp $ */
/*
* Calcurse - text-based organizer
* Copyright (c) 2004-2006 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 <ncurses.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <time.h>
#include "i18n.h"
#include "day.h"
#include "apoint.h"
#include "event.h"
#include "calendar.h"
#include "custom.h"
#include "vars.h"
#include "utils.h"
static unsigned months_to_days(unsigned);
static long years_to_days(unsigned);
/* Load the calendar */
void
update_cal_panel(WINDOW *cwin, int nl_cal,
int nc_cal, int sel_month, int sel_year, int sel_day,
int day, int month, int year,
bool monday_first)
{
int c_day, c_day_1, day_1_sav, numdays, j;
unsigned yr, mo;
int ofs_x, ofs_y;
int item_this_day = 0;
int title_lines = 3;
int sunday_first = 0;
// Inits
erase_window_part(cwin, 1, title_lines, nc_cal - 2, nl_cal - 2);
mo = sel_month;
yr = sel_year;
if (!monday_first) sunday_first = 1;
// Offset for centering calendar in window
ofs_y = 2 + (nl_cal - 9) / 2;
ofs_x = (nc_cal - 27) / 2;
//checking the number of days in february
numdays = days[mo - 1];
if (2 == mo && isBissextile(yr))
++numdays;
//the first calendar day will be monday or sunday, depending on the
//value of week_begins_on_monday
c_day_1 = (int) ((ymd_to_scalar(yr, mo, 1 + sunday_first)
- (long) 1) % 7L);
//Write the current month and year on top of the calendar
custom_apply_attr(cwin, ATTR_HIGH);
mvwprintw(cwin, ofs_y,
(nc_cal - (strlen(_(monthnames[mo - 1])) + 5)) / 2,
"%s %d", _(monthnames[mo - 1]), sel_year);
custom_remove_attr(cwin, ATTR_HIGH);
++ofs_y;
//prints the days, with regards to the first day of the week
custom_apply_attr(cwin, ATTR_HIGH);
for (j = 0; j < 7; j++) {
mvwprintw(cwin, ofs_y, ofs_x + 4 * j, "%s",
_(daynames[1 + j - sunday_first]));
}
custom_remove_attr(cwin, ATTR_HIGH);
day_1_sav = (c_day_1 + 1) * 3 + c_day_1 - 7;
for (c_day = 1; c_day <= numdays; ++c_day, ++c_day_1, c_day_1 %= 7) {
//check if the day contains an event or an appointment
item_this_day = day_check_if_item(sel_year, sel_month, c_day);
/* Go to next line, the week is over. */
if (!c_day_1 && 1 != c_day) {
++ofs_y;
ofs_x = 2 - day_1_sav - 4 * c_day - 1;
}
/* This is today, so print it in yellow. */
if (c_day == day && month == sel_month
&& year == sel_year && day != sel_day)
{
custom_apply_attr(cwin, ATTR_LOWEST);
mvwprintw(cwin, ofs_y + 1,
ofs_x + day_1_sav + 4 * c_day + 1, "%2d",
c_day);
custom_remove_attr(cwin, ATTR_LOWEST);
} else if (c_day == sel_day && ( (day != sel_day) |
(month != sel_month) | (year != sel_year) ))
/* This is the selected day, print it in red. */
{
custom_apply_attr(cwin, ATTR_MIDDLE);
mvwprintw(cwin, ofs_y + 1,
ofs_x + day_1_sav + 4 * c_day + 1, "%2d",
c_day);
custom_remove_attr(cwin, ATTR_MIDDLE);
} else if (c_day == sel_day && day == sel_day && month == sel_month && year == sel_year) //today is the selected day
{
custom_apply_attr(cwin, ATTR_MIDDLE);
mvwprintw(cwin, ofs_y + 1,
ofs_x + day_1_sav + 4 * c_day + 1, "%2d",
c_day);
custom_remove_attr(cwin, ATTR_MIDDLE);
} else if (item_this_day) {
custom_apply_attr(cwin, ATTR_LOW);
mvwprintw(cwin, ofs_y + 1,
ofs_x + day_1_sav + 4 * c_day + 1, "%2d",
c_day);
custom_remove_attr(cwin, ATTR_LOW);
}
else // otherwise, print normal days in black
mvwprintw(cwin, ofs_y + 1,
ofs_x + day_1_sav + 4 * c_day + 1, "%2d",
c_day);
}
wnoutrefresh(cwin);
}
int isBissextile(unsigned annee)
{
return annee % 400 == 0 || (annee % 4 == 0 && annee % 100 != 0);
}
// convertion functions
unsigned months_to_days(unsigned mois)
{
return (mois * 3057 - 3007) / 100;
}
long years_to_days(unsigned annee)
{
return annee * 365L + annee / 4 - annee / 100 + annee / 400;
}
long ymd_to_scalar(unsigned annee, unsigned mois, unsigned jour)
{
long scalaire;
scalaire = jour + months_to_days(mois);
if (mois > 2)
scalaire -= isBissextile(annee) ? 1 : 2;
annee--;
scalaire += years_to_days(annee);
return scalaire;
}
/*
* Ask for a date to jump to, then check the correctness of that date
* and jump to it.
* If the entered date is empty, automatically jump to the current date.
* day, month, year are the current day given to that routine, and
* sel_day, sel_month and sel_year represent the day given back.
*/
void
goto_day(int colr, int day, int month, int year,
int *sel_day, int *sel_month, int *sel_year)
{
char selected_day[50] = "";
int dday, dmonth, dyear;
int wrong_day = 0;
char *mesg_line1 = _("The day you entered is not valid");
char *mesg_line2 = _("Press [ENTER] to continue");
char *request_date = _("Enter the day to go to [ENTER for today] : dd/mm/yyyy");
while (wrong_day != 1) {
status_mesg(request_date, "");
getstring(swin, colr, selected_day, 0, 1);
if (strlen(selected_day) == 0) // go to today
{
*sel_day = day;
*sel_month = month;
*sel_year = year;
break;
} else {
sscanf(selected_day, "%u/%u/%u", &dday, &dmonth,
&dyear);
//check if the entered day is correct
if ((dday <= 0) | (dday >= 32))
wrong_day = 1;
if ((dmonth <= 0) | (dmonth >= 13))
wrong_day = 1;
if ((dyear <= 0) | (dyear >= 3000))
wrong_day = 1;
//go to chosen day
if (wrong_day != 1) {
*sel_day = dday;
*sel_month = dmonth;
*sel_year = dyear;
} else {
status_mesg(mesg_line1, mesg_line2);
wgetch(swin);
}
break;
}
}
return;
}
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