/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Main file for the GNOME Calendar program
 * Copyright (C) 1998 the Free Software Foundation
 *
 * Authors:
 *          Miguel de Icaza (miguel@kernel.org)
 *          Federico Mena (federico@helixcode.com)
 */

#include <config.h>
#include <pwd.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>
#include <gnome.h>
#include <libgnorba/gnorba.h>
#include <bonobo.h>
#include <cal-util/timeutil.h>
#include "gnome-cal.h"
#include "calendar-commands.h"
#include "print.h"

#include "dayview.xpm"
#include "workweekview.xpm"
#include "weekview.xpm"
#include "monthview.xpm"
#if 0
#include "yearview.xpm"
#endif


/* The username, used to set the `owner' field of the event */
char *user_name;

/* The full user name from the Gecos field */
char *full_name;

/* a gnome-config string prefix that can be used to access the calendar config info */
char *calendar_settings;

/* Day begin, day end parameters */
int day_begin, day_end;

/* Whether weeks starts on Sunday or Monday */
int week_starts_on_monday;

/* If AM/PM indicators should be used. This may not be supported by the new
   views. */
int am_pm_flag = 0;

/* The array of color properties -- keep in sync with the enumeration defined in main.h.  The color
 * values specified here are the defaults for the program.
 */
struct color_prop color_props[] = {
    { 0x3e72, 0x35ec, 0x8ba2, N_("Outline:"),              "/calendar/Colors/outline" },
    { 0xffff, 0xffff, 0xffff, N_("Headings:"),             "/calendar/Colors/headings" },
    { 0xf26c, 0xecec, 0xbbe7, N_("Empty days:"),           "/calendar/Colors/empty_bg" },
    { 0xfc1e, 0xf87f, 0x5f80, N_("Appointments:"),         "/calendar/Colors/mark_bg" },
    { 0xd364, 0xc6b7, 0x7969, N_("Highlighted day:"),      "/calendar/Colors/prelight_bg" },
    { 0x01f0, 0x01f0, 0x01f0, N_("Day numbers:"),          "/calendar/Colors/day_fg" },
    { 0x0000, 0x0000, 0xffff, N_("Current day's number:"), "/calendar/Colors/current_fg" },
    { 0xbbbb, 0xbbbb, 0x0000, N_("To-Do item that is not yet due:"), "/calendar/Colors/todo_not_yet" },
    { 0xdddd, 0xbbbb, 0x0000, N_("To-Do item that is due today:"),   "/calendar/Colors/todo_today" },
    { 0xbbbb, 0xdddd, 0x0000, N_("To-Do item that is overdue:"),     "/calendar/Colors/todo_overdue" }
};

/* Number of active calendars */
int active_calendars = 0;

/* A list of all of the calendars started */
GList *all_calendars = NULL;

/* If set, beep on display alarms */
gboolean beep_on_display = 0;

/* If true, timeout the beeper on audio alarms */

gboolean enable_aalarm_timeout = 0;
guint audio_alarm_timeout = 0;
const guint MAX_AALARM_TIMEOUT = 3600;
const guint MAX_SNOOZE_SECS = 3600;
gboolean enable_snooze = 0;
guint snooze_secs = 60;

#if 0
CalendarAlarm alarm_defaults[4] = {
        { ALARM_MAIL, 0, 15, ALARM_MINUTES },
        { ALARM_PROGRAM, 0, 15, ALARM_MINUTES },
        { ALARM_DISPLAY, 0, 15, ALARM_MINUTES },
        { ALARM_AUDIO, 0, 15, ALARM_MINUTES }
};
#endif

static void
init_username (void)
{
        user_name = g_strdup(g_get_user_name());
        full_name = g_strdup(g_get_real_name());
}

static int
range_check_hour (int hour)
{
    if (hour < 0)
        hour = 0;
    else if (hour >= 24)
        hour = 23;

    return hour;
}

#if 0
static void
init_default_alarms (void)
{
    int i;
    gboolean def;

    alarm_defaults [ALARM_DISPLAY].type = ALARM_DISPLAY;
    alarm_defaults [ALARM_AUDIO].type   = ALARM_AUDIO;
    alarm_defaults [ALARM_PROGRAM].type = ALARM_PROGRAM;
    alarm_defaults [ALARM_MAIL].type    = ALARM_MAIL;

    for (i = 0; i < 4; i++) {
        switch (alarm_defaults [i].type) {
        case ALARM_DISPLAY:
            gnome_config_push_prefix ("/calendar/alarms/def_disp_");
            break;
        case ALARM_AUDIO:
            gnome_config_push_prefix ("/calendar/alarms/def_audio_");
            break;
        case ALARM_PROGRAM:
            gnome_config_push_prefix ("/calendar/alarms/def_prog_");
            break;
        case ALARM_MAIL:
            gnome_config_push_prefix ("/calendar/alarms/def_mail_");
            break;
        }

        alarm_defaults[i].enabled = gnome_config_get_int ("enabled=0");
        if (alarm_defaults[i].type != ALARM_MAIL) {
            alarm_defaults[i].count   = gnome_config_get_int ("count=15");
            alarm_defaults[i].units   = gnome_config_get_int ("units=0");
        } else {
            alarm_defaults[i].count   = gnome_config_get_int ("count=1");
            alarm_defaults[i].count   = gnome_config_get_int ("count=2");
        }

        alarm_defaults[i].data = gnome_config_get_string_with_default ("data=",
                                           &def);
        if (def)
            alarm_defaults[i].data = NULL;

        gnome_config_pop_prefix ();
    }
}
#endif

static void
about_calendar_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
        GtkWidget *about;
        const gchar *authors[] = {
        "Miguel de Icaza (miguel@kernel.org)",
        "Federico Mena (federico@gimp.org)",
        "Arturo Espinosa (arturo@nuclecu.unam.mx)",
        "Russell Steinthal (rms39@columbia.edu)",
        NULL
    };

        about = gnome_about_new (_("Gnome Calendar"), VERSION,
                 "(C) 1998 the Free Software Foundation",
                 authors,
                 _("The GNOME personal calendar and schedule manager."),
                 NULL);
    gtk_window_set_modal (GTK_WINDOW (about), TRUE);
    gnome_dialog_set_close (GNOME_DIALOG (about), TRUE);
        gtk_widget_show (about);
}

/* Callback for the new appointment command */
static void
new_appointment_cb (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal;

    gcal = GNOME_CALENDAR (user_data);
    gnome_calendar_new_appointment (gcal);
}

/* Prints the calendar at its current view and time range */
static void
print (GnomeCalendar *gcal, gboolean preview)
{
    time_t start;
    const char *view;
    PrintView print_view;

    gnome_calendar_get_current_time_range (gcal, &start, NULL);
    view = gnome_calendar_get_current_view_name (gcal);

    if (strcmp (view, "dayview") == 0)
        print_view = PRINT_VIEW_DAY;
    else if (strcmp (view, "workweekview") == 0 || strcmp (view, "weekview") == 0)
        print_view = PRINT_VIEW_WEEK;
    else if (strcmp (view, "monthview") == 0)
        print_view = PRINT_VIEW_MONTH;
    else {
        g_assert_not_reached ();
        print_view = PRINT_VIEW_DAY;
    }

    print_calendar (gcal, preview, start, print_view);
}

/* Toolbar/Print callback */
static void
tb_print_cb (GtkWidget *widget, gpointer data)
{
    GnomeCalendar *gcal;

    gcal = GNOME_CALENDAR (data);
    print (gcal, FALSE);
}

/* File/Print callback */
static void
file_print_cb (BonoboUIHandler *uih, void *data, const char *path)
{
    GnomeCalendar *gcal;

    gcal = GNOME_CALENDAR (data);
    print (gcal, FALSE);
}

void
time_format_changed (void)
{
    GList *l;

    for (l = all_calendars; l; l = l->next)
        gnome_calendar_time_format_changed (GNOME_CALENDAR (l->data));
}

void
colors_changed (void)
{
    GList *l;

    for (l = all_calendars; l; l = l->next)
        gnome_calendar_colors_changed (GNOME_CALENDAR (l->data));
}

void
todo_properties_changed(void)
{
        GList *l;

    for (l = all_calendars; l; l = l->next)
        gnome_calendar_todo_properties_changed (GNOME_CALENDAR (l->data));
}

/* Sets a clock cursor for the specified calendar window */
static void
set_clock_cursor (GnomeCalendar *gcal)
{
    GdkCursor *cursor;

    cursor = gdk_cursor_new (GDK_WATCH);
    gdk_window_set_cursor (GTK_WIDGET (gcal)->window, cursor);
    gdk_cursor_destroy (cursor);
    gdk_flush ();
}

/* Resets the normal cursor for the specified calendar window */
static void
set_normal_cursor (GnomeCalendar *gcal)
{
    gdk_window_set_cursor (GTK_WIDGET (gcal)->window, NULL);
    gdk_flush ();
}

static void
previous_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);
    set_clock_cursor (gcal);
    gnome_calendar_previous (gcal);
    set_normal_cursor (gcal);
}

static void
next_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);
    set_clock_cursor (gcal);
    gnome_calendar_next (gcal);
    set_normal_cursor (gcal);
}

static void
today_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);
    set_clock_cursor (gcal);
    gnome_calendar_goto_today (gcal);
    set_normal_cursor (gcal);
}

static void
goto_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);
    goto_dialog (gcal);
}

static void
show_day_view_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);

    gnome_calendar_set_view (gcal, "dayview", FALSE, TRUE);
}

static void
show_work_week_view_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);

    gnome_calendar_set_view (gcal, "workweekview", FALSE, TRUE);
}

static void
show_week_view_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);

    gnome_calendar_set_view (gcal, "weekview", FALSE, TRUE);
}

static void
show_month_view_clicked (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);

    gnome_calendar_set_view (gcal, "monthview", FALSE, TRUE);
}


static void
new_calendar_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
    new_calendar (full_name, NULL, FALSE);
}

static void
close_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);
    all_calendars = g_list_remove (all_calendars, gcal);

    gtk_widget_destroy (GTK_WIDGET (gcal));
    active_calendars--;

    if (active_calendars == 0)
        gtk_main_quit ();
}


void
quit_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
    while (all_calendars){
        GnomeCalendar *cal = GNOME_CALENDAR (all_calendars->data);

        close_cmd (uih, cal, path);
    }
}


static void
open_ok (GtkWidget *widget, GtkFileSelection *fs)
{
    GtkWidget *error_dialog;
    int ret;
    if(!g_file_exists (gtk_file_selection_get_filename (fs))) {
        error_dialog = gnome_message_box_new (
            _("File not found"),
            GNOME_MESSAGE_BOX_ERROR,
            GNOME_STOCK_BUTTON_OK,
            NULL);

        gnome_dialog_set_parent (GNOME_DIALOG (error_dialog), GTK_WINDOW (fs));
        ret = gnome_dialog_run (GNOME_DIALOG (error_dialog));
    } else {
        /* FIXME: find out who owns this calendar and use that name */
#ifndef NO_WARNINGS
#warning "FIXME: find out who owns this calendar and use that name"
#endif
        /*
        new_calendar ("Somebody", gtk_file_selection_get_filename (fs), NULL, FALSE);
        */
        gtk_widget_destroy (GTK_WIDGET (fs));
    }
}

static void
open_calendar_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GtkFileSelection *fs;

    fs = GTK_FILE_SELECTION (gtk_file_selection_new (_("Open calendar")));

    gtk_signal_connect (GTK_OBJECT (fs->ok_button), "clicked",
                (GtkSignalFunc) open_ok,
                fs);
    gtk_signal_connect_object (GTK_OBJECT (fs->cancel_button), "clicked",
                   (GtkSignalFunc) gtk_widget_destroy,
                   GTK_OBJECT (fs));

    gtk_widget_show (GTK_WIDGET (fs));
    gtk_grab_add (GTK_WIDGET (fs)); /* Yes, it is modal, so sue me */
}

static void
save_ok (GtkWidget *widget, GtkFileSelection *fs)
{
    GnomeCalendar *gcal;
    gchar *fname;

    gcal = GNOME_CALENDAR (gtk_object_get_user_data (GTK_OBJECT (fs)));
    gtk_window_set_wmclass (GTK_WINDOW (gcal), "gnomecal", "gnomecal");

    fname = g_strdup (gtk_file_selection_get_filename (fs));
    g_free(fname);
    gtk_main_quit ();
}

static gint
close_save (GtkWidget *w)
{
    gtk_main_quit ();
    return TRUE;
}

static void
save_as_calendar_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GtkFileSelection *fs;

    fs = GTK_FILE_SELECTION (gtk_file_selection_new (_("Save calendar")));
    gtk_object_set_user_data (GTK_OBJECT (fs), user_data);

    gtk_signal_connect (GTK_OBJECT (fs->ok_button), "clicked",
                (GtkSignalFunc) save_ok,
                fs);
    gtk_signal_connect_object (GTK_OBJECT (fs->cancel_button), "clicked",
                   (GtkSignalFunc) close_save,
                   GTK_OBJECT (fs));
    gtk_signal_connect_object (GTK_OBJECT (fs), "delete_event",
                   GTK_SIGNAL_FUNC (close_save),
                   GTK_OBJECT (fs));
    gtk_widget_show (GTK_WIDGET (fs));
    gtk_grab_add (GTK_WIDGET (fs)); /* Yes, it is modal, so sue me even more */
    gtk_main ();
    gtk_widget_destroy (GTK_WIDGET (fs));
}

static void
properties_cmd (BonoboUIHandler *uih, void *user_data, const char *path)
{
    GnomeCalendar *gcal = GNOME_CALENDAR (user_data);
    properties (GTK_WIDGET (gcal));
}


/* Note: if the order of these is changed, make sure you change the indices
   used to access the widgets in calendar_control_activate(). */
static GnomeUIInfo gnome_toolbar_view_buttons [] = {
    GNOMEUIINFO_RADIOITEM (N_("Day"),    N_("Show 1 day"),
                   show_day_view_clicked,
                   dayview_xpm),
    GNOMEUIINFO_RADIOITEM (N_("5 Days"), N_("Show the working week"),
                   show_work_week_view_clicked,
                   workweekview_xpm),
    GNOMEUIINFO_RADIOITEM (N_("Week"),   N_("Show 1 week"),
                   show_week_view_clicked,
                   weekview_xpm),
    GNOMEUIINFO_RADIOITEM (N_("Month"),  N_("Show 1 month"),
                   show_month_view_clicked,
                   monthview_xpm),
#if 0
    GNOMEUIINFO_RADIOITEM (N_("Year"),   N_("Show 1 year"),
                   show_year_view_clicked,
                   yearview_xpm),
#endif
    GNOMEUIINFO_END
};


static GnomeUIInfo calendar_toolbar [] = {
    GNOMEUIINFO_ITEM_STOCK (N_("New"), N_("Create a new appointment"),
                new_appointment_cb, GNOME_STOCK_PIXMAP_NEW),

    GNOMEUIINFO_SEPARATOR,

    GNOMEUIINFO_ITEM_STOCK (N_("Print"), N_("Print this calendar"), tb_print_cb, GNOME_STOCK_PIXMAP_PRINT),

    GNOMEUIINFO_SEPARATOR,

    GNOMEUIINFO_ITEM_STOCK (N_("Prev"), N_("Go back in time"), previous_clicked, GNOME_STOCK_PIXMAP_BACK),
    GNOMEUIINFO_ITEM_STOCK (N_("Today"), N_("Go to present time"), today_clicked, GNOME_STOCK_PIXMAP_HOME),
    GNOMEUIINFO_ITEM_STOCK (N_("Next"), N_("Go forward in time"), next_clicked, GNOME_STOCK_PIXMAP_FORWARD),

    GNOMEUIINFO_SEPARATOR,

    GNOMEUIINFO_ITEM_STOCK (N_("Go to"), N_("Go to a specific date"), goto_clicked, GNOME_STOCK_PIXMAP_JUMP_TO),

    GNOMEUIINFO_SEPARATOR,

    GNOMEUIINFO_RADIOLIST (gnome_toolbar_view_buttons),

    GNOMEUIINFO_END
};



/* Performs signal connection as appropriate for interpreters or native bindings */
static void
do_ui_signal_connect (GnomeUIInfo *uiinfo, gchar *signal_name,
              GnomeUIBuilderData *uibdata)
{
    if (uibdata->is_interp)
        gtk_signal_connect_full (GTK_OBJECT (uiinfo->widget),
                signal_name, NULL, uibdata->relay_func,
                uibdata->data ?
                uibdata->data : uiinfo->user_data,
                uibdata->destroy_func, FALSE, FALSE);

    else if (uiinfo->moreinfo)
        gtk_signal_connect (GTK_OBJECT (uiinfo->widget),
                signal_name, uiinfo->moreinfo, uibdata->data ?
                uibdata->data : uiinfo->user_data);
}


void
calendar_control_activate (BonoboControl *control,
               GnomeCalendar *cal)
{
    Bonobo_UIHandler  remote_uih;
    GtkWidget *toolbar, *toolbar_frame;
    BonoboControl *toolbar_control;
    GnomeUIBuilderData uibdata;
    BonoboUIHandler *uih;
    int behavior;

    uih = bonobo_control_get_ui_handler (control);
    g_assert (uih != NULL);

    uibdata.connect_func = do_ui_signal_connect;
    uibdata.data = cal;
    uibdata.is_interp = FALSE;
    uibdata.relay_func = NULL;
    uibdata.destroy_func = NULL;

    g_print ("In calendar_control_activate\n");

    remote_uih = bonobo_control_get_remote_ui_handler (control);
    bonobo_ui_handler_set_container (uih, remote_uih);
    bonobo_object_release_unref (remote_uih, NULL);

    toolbar = gtk_toolbar_new (GTK_ORIENTATION_HORIZONTAL,
                   GTK_TOOLBAR_BOTH);
    gnome_app_fill_toolbar_custom (GTK_TOOLBAR (toolbar),
                       calendar_toolbar, &uibdata,
                       /*app->accel_group*/ NULL);

    /*gtk_toolbar_append_space (GTK_TOOLBAR (toolbar));*/

    /* Note that these indices should correspond with the button indices
       in the gnome_toolbar_view_buttons UIINFO struct. */
    gnome_calendar_set_view_buttons (cal,
                     gnome_toolbar_view_buttons[0].widget,
                     gnome_toolbar_view_buttons[1].widget,
                     gnome_toolbar_view_buttons[2].widget,
                     gnome_toolbar_view_buttons[3].widget);

    /* This makes the appropriate radio button in the toolbar active. */
    gnome_calendar_update_view_buttons (cal);

    gtk_widget_show_all (toolbar);

    toolbar_frame = gtk_frame_new (NULL);
    gtk_frame_set_shadow_type (GTK_FRAME (toolbar_frame), GTK_SHADOW_OUT);
    gtk_container_add (GTK_CONTAINER (toolbar_frame), toolbar);
    gtk_widget_show (toolbar_frame);

    gtk_widget_show_all (toolbar_frame);

    behavior = GNOME_DOCK_ITEM_BEH_EXCLUSIVE | GNOME_DOCK_ITEM_BEH_NEVER_VERTICAL;

    if (!gnome_preferences_get_toolbar_detachable ())
        behavior |= GNOME_DOCK_ITEM_BEH_LOCKED;

    toolbar_control = bonobo_control_new (toolbar_frame);

    bonobo_ui_handler_dock_add (uih, "/Toolbar",
                    bonobo_object_corba_objref (BONOBO_OBJECT (toolbar_control)),
                    behavior,
                    GNOME_DOCK_TOP,
                    1, 1, 0);

    /* file menu */
    bonobo_ui_handler_menu_new_item (uih, "/File/New/Calendar", N_("New Ca_lendar"),
                     N_("Create a new calendar"),
                     -1, BONOBO_UI_HANDLER_PIXMAP_NONE,
                     NULL, 0, 0, new_calendar_cmd, cal);
    bonobo_ui_handler_menu_new_item (uih, "/File/Open/Calendar", N_("Open Ca_lendar"),
                     N_("Open a calendar"), -1,
                     BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                     0, 0, open_calendar_cmd, cal);
    bonobo_ui_handler_menu_new_item (uih, "/File/Save Calendar As",
                     N_("Save Calendar As"),
                     N_("Save Calendar As"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                     0, 0, save_as_calendar_cmd, cal);
    bonobo_ui_handler_menu_new_item (uih, "/File/Print", N_("Print..."),
                     N_("Print this calendar"), -1,
                     BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_PIXMAP_PRINT,
                     'p', GDK_CONTROL_MASK,
                     file_print_cb, cal);

    /* edit menu */
    bonobo_ui_handler_menu_new_item (uih, "/Edit/New Appointment",
                     N_("_New appointment..."), N_("Create a new appointment"),
                     -1, BONOBO_UI_HANDLER_PIXMAP_STOCK,
                     GNOME_STOCK_MENU_NEW, 0, 0,
                     new_appointment_cb, cal);

    //bonobo_ui_handler_menu_new_separator (uih, "/Edit", -1);

    bonobo_ui_handler_menu_new_item (uih, "/Edit/Preferences",
                     N_("Preferences"), N_("Preferences"),
                     -1, BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                     0, 0, properties_cmd, cal);
    /* help menu */

    bonobo_ui_handler_menu_new_item (uih,
                     "/Help/About Calendar",
                     N_("About Calendar"),
                     N_("About Calendar"),
                     -1,
                     BONOBO_UI_HANDLER_PIXMAP_NONE, NULL,
                     0, 0, about_calendar_cmd, cal);

}


void
calendar_control_deactivate (BonoboControl *control)
{
    BonoboUIHandler *uih = bonobo_control_get_ui_handler (control);
    g_assert (uih);

    g_print ("In calendar_control_deactivate\n");

    bonobo_ui_handler_dock_remove (uih, "/Toolbar");
    bonobo_ui_handler_unset_container (uih);
}




static gint
calendar_close_event (GtkWidget *widget, GdkEvent *event, GnomeCalendar *gcal)
{
    close_cmd (NULL, gcal, NULL);
    return TRUE;
}


GnomeCalendar *
new_calendar (char *full_name, char *geometry, gboolean hidden)
{
    GtkWidget   *toplevel;
    int         xpos, ypos, width, height;

    toplevel = gnome_calendar_new ();

    if (gnome_parse_geometry (geometry, &xpos, &ypos, &width, &height)) {
        if (xpos != -1)
            gtk_widget_set_uposition (toplevel, xpos, ypos);
    }

    gtk_signal_connect (GTK_OBJECT (toplevel), "delete_event",
                GTK_SIGNAL_FUNC(calendar_close_event), toplevel);

    active_calendars++;
    all_calendars = g_list_prepend (all_calendars, toplevel);

    if (hidden){
        GnomeWinState state;

        /* Realize the toplevel window to prevent a segfault */
        gtk_widget_realize (toplevel);
        state = gnome_win_hints_get_state (toplevel);

        state |= WIN_STATE_MINIMIZED;
        gnome_win_hints_set_state (toplevel, state);
    }

    gtk_widget_show (toplevel);

    return GNOME_CALENDAR (toplevel);
}


void calendar_set_uri (GnomeCalendar *gcal, char *calendar_file)
{
    gboolean    success;

    g_return_if_fail (gcal);
    g_return_if_fail (calendar_file);

    printf ("calendar_set_uri: calendar_file is '%s'\n", calendar_file);

    success = gnome_calendar_open (gcal,
                       calendar_file,
                       CALENDAR_OPEN_OR_CREATE);

    printf ("    load or create returned %d\n", success);
}





/*
 * Initializes the calendar internal variables, loads defaults
 */
void
init_calendar (void)
{
    int i;
    char *cspec, *color;
    char *str;

    init_username ();
    /*user_calendar_file = g_concat_dir_and_file (gnome_util_user_home (), ".gnome/user-cal.vcf");*/

    gnome_config_push_prefix (calendar_settings);

    /* Read calendar settings */

    day_begin  = range_check_hour (gnome_config_get_int  ("/calendar/Calendar/Day start=8"));
    day_end    = range_check_hour (gnome_config_get_int  ("/calendar/Calendar/Day end=17"));
    am_pm_flag = gnome_config_get_bool ("/calendar/Calendar/AM PM flag=0");
    week_starts_on_monday = gnome_config_get_bool ("/calendar/Calendar/Week starts on Monday=0");

    if (day_end < day_begin){
        day_begin = 8;
        day_end   = 17;
    }

    /* Read color settings */

    for (i = 0; i < COLOR_PROP_LAST; i++) {
        cspec = build_color_spec (color_props[i].r, color_props[i].g, color_props[i].b);
        str = g_strconcat (color_props[i].key, "=", cspec, NULL);

        color = gnome_config_get_string (str);
        parse_color_spec (color, &color_props[i].r, &color_props[i].g, &color_props[i].b);

        g_free (str);
        g_free (color);
    }

    /* read todolist settings */

    todo_show_time_remaining = gnome_config_get_bool("/calendar/Todo/show_time_remain");
    todo_show_due_date = gnome_config_get_bool("/calendar/Todo/show_due_date");

    todo_item_dstatus_highlight_overdue = gnome_config_get_bool("/calendar/Todo/highlight_overdue");

    todo_item_dstatus_highlight_due_today = gnome_config_get_bool("/calendar/Todo/highlight_due_today");

    todo_item_dstatus_highlight_not_due_yet = gnome_config_get_bool("/calendar/Todo/highlight_not_due_yet");

        todo_current_sort_column = gnome_config_get_int("/calendar/Todo/sort_column");

    todo_current_sort_type = gnome_config_get_int("/calendar/Todo/sort_type");

    todo_show_priority = gnome_config_get_bool("/calendar/Todo/show_priority");

    /* read alarm settings */
    beep_on_display = gnome_config_get_bool ("/calendar/alarms/beep_on_display=FALSE");
    enable_aalarm_timeout = gnome_config_get_bool ("/calendar/alarms/enable_audio_timeout=FALSE");
    audio_alarm_timeout = gnome_config_get_int ("/calendar/alarms/audio_alarm_timeout=60");
    if (audio_alarm_timeout < 1)
        audio_alarm_timeout = 1;
    if (audio_alarm_timeout > MAX_AALARM_TIMEOUT)
        audio_alarm_timeout = MAX_AALARM_TIMEOUT;
    enable_snooze = gnome_config_get_bool ("/calendar/alarms/enable_snooze=FALSE");
    snooze_secs = gnome_config_get_int ("/calendar/alarms/snooze_secs=300");
    if (snooze_secs < 1)
        snooze_secs = 1;
    if (snooze_secs > MAX_SNOOZE_SECS)
        snooze_secs = MAX_SNOOZE_SECS;

#if 0
    init_default_alarms ();
#endif

    /* Done */

    gnome_config_pop_prefix ();
}