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path: root/calendar/gui/e-calendar-table.c
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/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Damon Chaplin <damon@ximian.com>
 *      Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

/*
 * ECalendarTable - displays the ECalComponent objects in a table (an ETable).
 * Used for calendar events and tasks.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <sys/stat.h>
#include <unistd.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <misc/e-gui-utils.h>
#include <table/e-cell-checkbox.h>
#include <table/e-cell-toggle.h>
#include <table/e-cell-text.h>
#include <table/e-cell-combo.h>
#include <table/e-cell-date.h>
#include <e-util/e-binding.h>
#include <e-util/e-selection.h>
#include <e-util/e-dialog-utils.h>
#include <e-util/e-util-private.h>
#include <table/e-cell-date-edit.h>
#include <table/e-cell-percent.h>
#include <libecal/e-cal-time-util.h>
#include <libedataserver/e-time-utils.h>

#include "calendar-config.h"
#include "dialogs/delete-comp.h"
#include "dialogs/delete-error.h"
#include "dialogs/task-editor.h"
#include "e-cal-model-tasks.h"
#include "e-calendar-table.h"
#include "e-calendar-view.h"
#include "e-cell-date-edit-text.h"
#include "print.h"
#include <e-util/e-icon-factory.h>
#include "misc.h"

#define E_CALENDAR_TABLE_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_CALENDAR_TABLE, ECalendarTablePrivate))

struct _ECalendarTablePrivate {
    gpointer shell_view;  /* weak pointer */
    ECalModel *model;
};

enum {
    PROP_0,
    PROP_MODEL,
    PROP_SHELL_VIEW
};

enum {
    OPEN_COMPONENT,
    POPUP_EVENT,
    STATUS_MESSAGE,
    USER_CREATED,
    LAST_SIGNAL
};

static struct tm e_calendar_table_get_current_time (ECellDateEdit *ecde, gpointer data);

static gpointer parent_class;
static guint signals[LAST_SIGNAL];

/* The icons to represent the task. */
#define NUM_ICONS 4
static const gchar *icon_names[NUM_ICONS] = {
    "stock_task",
    "stock_task-recurring",
    "stock_task-assigned",
    "stock_task-assigned-to"
};
static GdkPixbuf *icon_pixbufs[NUM_ICONS] = { NULL };

static void
calendar_table_emit_open_component (ECalendarTable *cal_table,
                                    ECalModelComponent *comp_data)
{
    guint signal_id = signals[OPEN_COMPONENT];

    g_signal_emit (cal_table, signal_id, 0, comp_data);
}

static void
calendar_table_emit_popup_event (ECalendarTable *cal_table,
                                 GdkEvent *event)
{
    guint signal_id = signals[POPUP_EVENT];

    g_signal_emit (cal_table, signal_id, 0, event);
}

static void
calendar_table_emit_status_message (ECalendarTable *cal_table,
                                    const gchar *message,
                                    gdouble percent)
{
    guint signal_id = signals[STATUS_MESSAGE];

    g_signal_emit (cal_table, signal_id, 0, message, percent);
}

static void
calendar_table_emit_user_created (ECalendarTable *cal_table)
{
    guint signal_id = signals[USER_CREATED];

    g_signal_emit (cal_table, signal_id, 0);
}

static gint
calendar_table_date_compare_cb (gconstpointer a,
                                gconstpointer b)
{
    ECellDateEditValue *dv1 = (ECellDateEditValue *) a;
    ECellDateEditValue *dv2 = (ECellDateEditValue *) b;
    struct icaltimetype tt;

    /* First check if either is NULL. NULL dates sort last. */
    if (!dv1 || !dv2) {
        if (dv1 == dv2)
            return 0;
        else if (dv1)
            return -1;
        else
            return 1;
    }

    /* Copy the 2nd value and convert it to the same timezone as the
       first. */
    tt = dv2->tt;

    icaltimezone_convert_time (&tt, dv2->zone, dv1->zone);

    /* Now we can compare them. */

    return icaltime_compare (dv1->tt, tt);
}

static gint
calendar_table_percent_compare_cb (gconstpointer a,
                                   gconstpointer b)
{
    gint percent1 = GPOINTER_TO_INT (a);
    gint percent2 = GPOINTER_TO_INT (b);

    return (percent1 < percent2) ? -1 : (percent1 > percent2);
}

static gint
calendar_table_priority_compare_cb (gconstpointer a,
                                    gconstpointer b)
{
    gint priority1, priority2;

    priority1 = e_cal_util_priority_from_string ((const gchar *) a);
    priority2 = e_cal_util_priority_from_string ((const gchar *) b);

    /* We change undefined priorities so they appear after 'Low'. */
    if (priority1 <= 0)
        priority1 = 10;
    if (priority2 <= 0)
        priority2 = 10;

    /* We'll just use the ordering of the priority values. */
    return (priority1 < priority2) ? -1 : (priority1 > priority2);
}

static gint
calendar_table_status_compare_cb (gconstpointer a,
                                  gconstpointer b)
{
    const gchar *string_a = a;
    const gchar *string_b = b;
    gint status_a = -2;
    gint status_b = -2;

    if (string_a == NULL || *string_a == '\0')
        status_a = -1;
    else if (!g_utf8_collate (string_a, _("Not Started")))
        status_a = 0;
    else if (!g_utf8_collate (string_a, _("In Progress")))
        status_a = 1;
    else if (!g_utf8_collate (string_a, _("Completed")))
        status_a = 2;
    else if (!g_utf8_collate (string_a, _("Canceled")))
        status_a = 3;

    if (string_b == NULL || *string_b == '\0')
        status_b = -1;
    else if (!g_utf8_collate (string_b, _("Not Started")))
        status_b = 0;
    else if (!g_utf8_collate (string_b, _("In Progress")))
        status_b = 1;
    else if (!g_utf8_collate (string_b, _("Completed")))
        status_b = 2;
    else if (!g_utf8_collate (string_b, _("Canceled")))
        status_b = 3;

    return (status_a < status_b) ? -1 : (status_a > status_b);
}

static void
calendar_table_model_cal_view_progress_cb (ECalendarTable *cal_table,
                                           const gchar *message,
                                           gint progress,
                                           ECalSourceType type)
{
    gdouble percent = (gdouble) progress;

    calendar_table_emit_status_message (cal_table, message, percent);
}

static void
calendar_table_model_cal_view_done_cb (ECalendarTable *cal_table,
                                       ECalendarStatus status,
                                       ECalSourceType type)
{
    calendar_table_emit_status_message (cal_table, NULL, -1.0);
}

static void
calendar_table_set_model (ECalendarTable *cal_table,
                          ECalModel *model)
{
    g_return_if_fail (cal_table->priv->model == NULL);

    cal_table->priv->model = g_object_ref (model);

    g_signal_connect_swapped (
        model, "row_appended",
        G_CALLBACK (calendar_table_emit_user_created), cal_table);

    g_signal_connect_swapped (
        model, "cal-view-progress",
        G_CALLBACK (calendar_table_model_cal_view_progress_cb),
        cal_table);

    g_signal_connect_swapped (
        model, "cal-view-done",
        G_CALLBACK (calendar_table_model_cal_view_done_cb),
        cal_table);
}

static void
calendar_table_set_shell_view (ECalendarTable *cal_table,
                               EShellView *shell_view)
{
    g_return_if_fail (cal_table->priv->shell_view == NULL);

    cal_table->priv->shell_view = shell_view;

    g_object_add_weak_pointer (
        G_OBJECT (shell_view),
        &cal_table->priv->shell_view);
}

static void
calendar_table_set_property (GObject *object,
                             guint property_id,
                             const GValue *value,
                             GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_MODEL:
            calendar_table_set_model (
                E_CALENDAR_TABLE (object),
                g_value_get_object (value));
            return;

        case PROP_SHELL_VIEW:
            calendar_table_set_shell_view (
                E_CALENDAR_TABLE (object),
                g_value_get_object (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
calendar_table_get_property (GObject *object,
                             guint property_id,
                             GValue *value,
                             GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_MODEL:
            g_value_set_object (
                value, e_calendar_table_get_model (
                E_CALENDAR_TABLE (object)));
            return;

        case PROP_SHELL_VIEW:
            g_value_set_object (
                value, e_calendar_table_get_shell_view (
                E_CALENDAR_TABLE (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
calendar_table_dispose (GObject *object)
{
    ECalendarTablePrivate *priv;

    priv = E_CALENDAR_TABLE_GET_PRIVATE (object);

    if (priv->shell_view != NULL) {
        g_object_remove_weak_pointer (
            G_OBJECT (priv->shell_view), &priv->shell_view);
        priv->shell_view = NULL;
    }

    if (priv->model != NULL) {
        g_object_unref (priv->model);
        priv->model = NULL;
    }

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
calendar_table_constructed (GObject *object)
{
    ECalendarTable *cal_table;
    ECalModel *model;
    ECell *cell, *popup_cell;
    ETableExtras *extras;
    gint i;
    GdkPixbuf *pixbuf;
    GList *strings;
    AtkObject *a11y;
    gchar *etspecfile;

    cal_table = E_CALENDAR_TABLE (object);
    model = e_calendar_table_get_model (cal_table);

    /* Create the header columns */

    extras = e_table_extras_new ();

    /*
     * Normal string fields.
     */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (cell,
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              NULL);

    e_table_extras_add_cell (extras, "calstring", cell);

    /*
     * Date fields.
     */
    cell = e_cell_date_edit_text_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (cell,
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              NULL);

    e_mutual_binding_new (
        model, "timezone",
        cell, "timezone");

    e_mutual_binding_new (
        model, "use-24-hour-format",
        cell, "use-24-hour-format");

    popup_cell = e_cell_date_edit_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    e_mutual_binding_new (
        model, "use-24-hour-format",
        popup_cell, "use-24-hour-format");

    e_table_extras_add_cell (extras, "dateedit", popup_cell);
    cal_table->dates_cell = E_CELL_DATE_EDIT (popup_cell);

    e_cell_date_edit_set_get_time_callback (
        E_CELL_DATE_EDIT (popup_cell),
        e_calendar_table_get_current_time, cal_table, NULL);

    /*
     * Combo fields.
     */

    /* Classification field. */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (cell,
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              "editable", FALSE,
              NULL);

    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (gchar *) _("Public"));
    strings = g_list_append (strings, (gchar *) _("Private"));
    strings = g_list_append (strings, (gchar *) _("Confidential"));
    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell),
                      strings);

    e_table_extras_add_cell (extras, "classification", popup_cell);

    /* Priority field. */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (G_OBJECT (cell),
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              "editable", FALSE,
              NULL);

    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (gchar *) _("High"));
    strings = g_list_append (strings, (gchar *) _("Normal"));
    strings = g_list_append (strings, (gchar *) _("Low"));
    strings = g_list_append (strings, (gchar *) _("Undefined"));
    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell),
                      strings);

    e_table_extras_add_cell (extras, "priority", popup_cell);

    /* Percent field. */
    cell = e_cell_percent_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (G_OBJECT (cell),
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              NULL);

    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (gchar *) _("0%"));
    strings = g_list_append (strings, (gchar *) _("10%"));
    strings = g_list_append (strings, (gchar *) _("20%"));
    strings = g_list_append (strings, (gchar *) _("30%"));
    strings = g_list_append (strings, (gchar *) _("40%"));
    strings = g_list_append (strings, (gchar *) _("50%"));
    strings = g_list_append (strings, (gchar *) _("60%"));
    strings = g_list_append (strings, (gchar *) _("70%"));
    strings = g_list_append (strings, (gchar *) _("80%"));
    strings = g_list_append (strings, (gchar *) _("90%"));
    strings = g_list_append (strings, (gchar *) _("100%"));
    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell),
                      strings);

    e_table_extras_add_cell (extras, "percent", popup_cell);

    /* Transparency field. */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (G_OBJECT (cell),
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              "editable", FALSE,
              NULL);

    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (gchar *) _("Free"));
    strings = g_list_append (strings, (gchar *) _("Busy"));
    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell),
                      strings);

    e_table_extras_add_cell (extras, "transparency", popup_cell);

    /* Status field. */
    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    g_object_set (G_OBJECT (cell),
              "strikeout_column", E_CAL_MODEL_TASKS_FIELD_STRIKEOUT,
              "bold_column", E_CAL_MODEL_TASKS_FIELD_OVERDUE,
              "bg_color_column", E_CAL_MODEL_FIELD_COLOR,
              "editable", FALSE,
              NULL);

    popup_cell = e_cell_combo_new ();
    e_cell_popup_set_child (E_CELL_POPUP (popup_cell), cell);
    g_object_unref (cell);

    strings = NULL;
    strings = g_list_append (strings, (gchar *) _("Not Started"));
    strings = g_list_append (strings, (gchar *) _("In Progress"));
    strings = g_list_append (strings, (gchar *) _("Completed"));
    strings = g_list_append (strings, (gchar *) _("Canceled"));
    e_cell_combo_set_popdown_strings (E_CELL_COMBO (popup_cell),
                      strings);

    e_table_extras_add_cell (extras, "calstatus", popup_cell);

    e_table_extras_add_compare (extras, "date-compare",
                    calendar_table_date_compare_cb);
    e_table_extras_add_compare (extras, "percent-compare",
                    calendar_table_percent_compare_cb);
    e_table_extras_add_compare (extras, "priority-compare",
                    calendar_table_priority_compare_cb);
    e_table_extras_add_compare (extras, "status-compare",
                    calendar_table_status_compare_cb);

    /* Create pixmaps */

    if (!icon_pixbufs[0])
        for (i = 0; i < NUM_ICONS; i++) {
            icon_pixbufs[i] = e_icon_factory_get_icon (icon_names[i], GTK_ICON_SIZE_MENU);
        }

    cell = e_cell_toggle_new (0, NUM_ICONS, icon_pixbufs);
    e_table_extras_add_cell(extras, "icon", cell);
    e_table_extras_add_pixbuf(extras, "icon", icon_pixbufs[0]);

    pixbuf = e_icon_factory_get_icon ("stock_check-filled", GTK_ICON_SIZE_MENU);
    e_table_extras_add_pixbuf(extras, "complete", pixbuf);
    g_object_unref(pixbuf);

    /* set proper format component for a default 'date' cell renderer */
    cell = e_table_extras_get_cell (extras, "date");
    e_cell_date_set_format_component (E_CELL_DATE (cell), "calendar");

    /* Create the table */

    etspecfile = g_build_filename (
        EVOLUTION_ETSPECDIR, "e-calendar-table.etspec", NULL);
    e_table_construct_from_spec_file (
        E_TABLE (cal_table), E_TABLE_MODEL (model),
        extras, etspecfile, NULL);
    g_free (etspecfile);

    gtk_widget_set_has_tooltip (GTK_WIDGET (cal_table), TRUE);

    a11y = gtk_widget_get_accessible (GTK_WIDGET (cal_table));
    if (a11y)
        atk_object_set_name (a11y, _("Tasks"));
}

static gboolean
calendar_table_popup_menu (GtkWidget *widget)
{
    ECalendarTable *cal_table;

    cal_table = E_CALENDAR_TABLE (widget);
    calendar_table_emit_popup_event (cal_table, NULL);

    return TRUE;
}

static gboolean
calendar_table_query_tooltip (GtkWidget *widget,
                              gint x,
                              gint y,
                              gboolean keyboard_mode,
                              GtkTooltip *tooltip)
{
    ECalendarTable *cal_table;
    ECalModel *model;
    ECalModelComponent *comp_data;
    gint row = -1, col = -1;
    GtkWidget *box, *l, *w;
    GtkStyle *style = gtk_widget_get_default_style ();
    gchar *tmp;
    const gchar *str;
    GString *tmp2;
    gchar buff[1001];
    gboolean free_text = FALSE;
    gboolean use_24_hour_format;
    ECalComponent *new_comp;
    ECalComponentOrganizer organizer;
    ECalComponentDateTime dtstart, dtdue;
    icalcomponent *clone;
    icaltimezone *zone, *default_zone;
    GSList *desc, *p;
    gint len;
    ESelectionModel *esm;
    struct tm tmp_tm;

    if (keyboard_mode)
        return FALSE;

    cal_table = E_CALENDAR_TABLE (widget);

    e_table_get_mouse_over_cell (E_TABLE (cal_table), &row, &col);
    if (row == -1)
        return FALSE;

    /* Respect sorting option; the 'e_table_get_mouse_over_cell'
     * returns sorted row, not the model one. */
    esm = e_table_get_selection_model (E_TABLE (cal_table));
    if (esm && esm->sorter && e_sorter_needs_sorting (esm->sorter))
        row = e_sorter_sorted_to_model (esm->sorter, row);

    model = e_calendar_table_get_model (cal_table);
    comp_data = e_cal_model_get_component_at (model, row);
    if (!comp_data || !comp_data->icalcomp)
        return FALSE;

    new_comp = e_cal_component_new ();
    clone = icalcomponent_new_clone (comp_data->icalcomp);
    if (!e_cal_component_set_icalcomponent (new_comp, clone)) {
        g_object_unref (new_comp);
        return FALSE;
    }

    box = gtk_vbox_new (FALSE, 0);

    str = e_calendar_view_get_icalcomponent_summary (
        comp_data->client, comp_data->icalcomp, &free_text);
    if (!(str && *str)) {
        if (free_text)
            g_free ((gchar *)str);
        free_text = FALSE;
        str = _("* No Summary *");
    }

    l = gtk_label_new (NULL);
    tmp = g_markup_printf_escaped ("<b>%s</b>", str);
    gtk_label_set_line_wrap (GTK_LABEL (l), TRUE);
    gtk_label_set_markup (GTK_LABEL (l), tmp);
    gtk_misc_set_alignment (GTK_MISC (l), 0.0, 0.5);
    w = gtk_event_box_new ();

    gtk_widget_modify_bg (w, GTK_STATE_NORMAL, &(style->bg[GTK_STATE_SELECTED]));
    gtk_widget_modify_fg (l, GTK_STATE_NORMAL, &(style->text[GTK_STATE_SELECTED]));
    gtk_container_add (GTK_CONTAINER (w), l);
    gtk_box_pack_start (GTK_BOX (box), w, TRUE, TRUE, 0);
    g_free (tmp);

    if (free_text)
        g_free ((gchar *)str);
    free_text = FALSE;

    w = gtk_event_box_new ();
    gtk_widget_modify_bg (w, GTK_STATE_NORMAL, &(style->bg[GTK_STATE_NORMAL]));

    l = gtk_vbox_new (FALSE, 0);
    gtk_container_add (GTK_CONTAINER (w), l);
    gtk_box_pack_start (GTK_BOX (box), w, FALSE, FALSE, 0);
    w = l;

    e_cal_component_get_organizer (new_comp, &organizer);
    if (organizer.cn) {
        gchar *ptr;
        ptr = strchr( organizer.value, ':');

        if (ptr) {
            ptr++;
            /* To Translators: It will display "Organizer: NameOfTheUser <email@ofuser.com>" */
            tmp = g_strdup_printf (_("Organizer: %s <%s>"), organizer.cn, ptr);
        } else {
            /* With SunOne accounts, there may be no ':' in organiser.value */
            tmp = g_strdup_printf (_("Organizer: %s"), organizer.cn);
        }

        l = gtk_label_new (tmp);
        gtk_label_set_line_wrap (GTK_LABEL (l), FALSE);
        gtk_misc_set_alignment (GTK_MISC (l), 0.0, 0.5);
        gtk_box_pack_start (GTK_BOX (w), l, FALSE, FALSE, 0);
        g_free (tmp);
    }

    e_cal_component_get_dtstart (new_comp, &dtstart);
    e_cal_component_get_due (new_comp, &dtdue);

    default_zone = e_cal_model_get_timezone (model);
    use_24_hour_format = e_cal_model_get_use_24_hour_format (model);

    if (dtstart.tzid) {
        zone = icalcomponent_get_timezone (e_cal_component_get_icalcomponent (new_comp), dtstart.tzid);
        if (!zone)
            e_cal_get_timezone (
                comp_data->client, dtstart.tzid, &zone, NULL);
        if (!zone)
            zone = default_zone;
    } else {
        zone = NULL;
    }

    tmp2 = g_string_new ("");

    if (dtstart.value) {
        buff[0] = 0;

        tmp_tm = icaltimetype_to_tm_with_zone (
            dtstart.value, zone, default_zone);
        e_time_format_date_and_time (
            &tmp_tm, use_24_hour_format,
            FALSE, FALSE, buff, 1000);

        if (buff [0]) {
            g_string_append (tmp2, _("Start: "));
            g_string_append (tmp2, buff);
        }
    }

    if (dtdue.value) {
        buff[0] = 0;

        tmp_tm = icaltimetype_to_tm_with_zone (
            dtdue.value, zone, default_zone);
        e_time_format_date_and_time (
            &tmp_tm, use_24_hour_format,
            FALSE, FALSE, buff, 1000);

        if (buff [0]) {
            if (tmp2->len)
                g_string_append (tmp2, "; ");

            g_string_append (tmp2, _("Due: "));
            g_string_append (tmp2, buff);
        }
    }

    if (tmp2->len) {
        l = gtk_label_new (tmp2->str);
        gtk_misc_set_alignment (GTK_MISC (l), 0.0, 0.5);
        gtk_box_pack_start (GTK_BOX (w), l, FALSE, FALSE, 0);
    }

    g_string_free (tmp2, TRUE);

    e_cal_component_free_datetime (&dtstart);
    e_cal_component_free_datetime (&dtdue);

    tmp = e_calendar_view_get_attendees_status_info (
        new_comp, comp_data->client);
    if (tmp) {
        l = gtk_label_new (tmp);
        gtk_misc_set_alignment (GTK_MISC (l), 0.0, 0.5);
        gtk_box_pack_start (GTK_BOX (w), l, FALSE, FALSE, 0);

        g_free (tmp);
        tmp = NULL;
    }

    tmp2 = g_string_new ("");
    e_cal_component_get_description_list (new_comp, &desc);
    for (len = 0, p = desc; p != NULL; p = p->next) {
        ECalComponentText *text = p->data;

        if (text->value != NULL) {
            len += strlen (text->value);
            g_string_append (tmp2, text->value);
            if (len > 1024) {
                g_string_set_size (tmp2, 1020);
                g_string_append (tmp2, "...");
                break;
            }
        }
    }
    e_cal_component_free_text_list (desc);

    if (tmp2->len) {
        l = gtk_label_new (tmp2->str);
        gtk_label_set_line_wrap (GTK_LABEL (l), TRUE);
        gtk_misc_set_alignment (GTK_MISC (l), 0.0, 0.5);
        gtk_box_pack_start (GTK_BOX (box), l, FALSE, FALSE, 0);
    }

    g_string_free (tmp2, TRUE);

    gtk_widget_show_all (box);
    gtk_tooltip_set_custom (tooltip, box);

    g_object_unref (new_comp);

    return TRUE;
}

static void
calendar_table_double_click (ETable *table,
                             gint row,
                             gint col,
                             GdkEvent *event)
{
    ECalendarTable *cal_table;
    ECalModel *model;
    ECalModelComponent *comp_data;

    cal_table = E_CALENDAR_TABLE (table);
    model = e_calendar_table_get_model (cal_table);
    comp_data = e_cal_model_get_component_at (model, row);
    calendar_table_emit_open_component (cal_table, comp_data);
}

static gint
calendar_table_right_click (ETable *table,
                            gint row,
                            gint col,
                            GdkEvent *event)
{
    ECalendarTable *cal_table;

    cal_table = E_CALENDAR_TABLE (table);
    calendar_table_emit_popup_event (cal_table, event);

    return TRUE;
}

static void
calendar_table_class_init (ECalendarTableClass *class)
{
    GObjectClass *object_class;
    GtkWidgetClass *widget_class;
    ETableClass *table_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (ECalendarTablePrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = calendar_table_set_property;
    object_class->get_property = calendar_table_get_property;
    object_class->dispose = calendar_table_dispose;
    object_class->constructed = calendar_table_constructed;

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->popup_menu = calendar_table_popup_menu;
    widget_class->query_tooltip = calendar_table_query_tooltip;

    table_class = E_TABLE_CLASS (class);
    table_class->double_click = calendar_table_double_click;
    table_class->right_click = calendar_table_right_click;

    g_object_class_install_property (
        object_class,
        PROP_MODEL,
        g_param_spec_object (
            "model",
            _("Model"),
            NULL,
            E_TYPE_CAL_MODEL,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT_ONLY));

    g_object_class_install_property (
        object_class,
        PROP_SHELL_VIEW,
        g_param_spec_object (
            "shell-view",
            _("Shell View"),
            NULL,
            E_TYPE_SHELL_VIEW,
            G_PARAM_READWRITE |
            G_PARAM_CONSTRUCT_ONLY));

    signals[OPEN_COMPONENT] = g_signal_new (
        "open-component",
        G_TYPE_FROM_CLASS (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ECalendarTableClass, open_component),
        NULL, NULL,
        g_cclosure_marshal_VOID__OBJECT,
        G_TYPE_NONE, 1,
        E_TYPE_CAL_MODEL_COMPONENT);

    signals[POPUP_EVENT] = g_signal_new (
        "popup-event",
        G_TYPE_FROM_CLASS (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ECalendarTableClass, popup_event),
        NULL, NULL,
        g_cclosure_marshal_VOID__BOXED,
        G_TYPE_NONE, 1,
        GDK_TYPE_EVENT | G_SIGNAL_TYPE_STATIC_SCOPE);

    signals[STATUS_MESSAGE] = g_signal_new (
        "status-message",
        G_TYPE_FROM_CLASS (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ECalendarTableClass, status_message),
        NULL, NULL,
        e_marshal_VOID__STRING_DOUBLE,
        G_TYPE_NONE, 2,
        G_TYPE_STRING, G_TYPE_DOUBLE);

    signals[USER_CREATED] = g_signal_new (
        "user-created",
        G_TYPE_FROM_CLASS (class),
        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
        G_STRUCT_OFFSET (ECalendarTableClass, user_created),
        NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);
}

static void
calendar_table_init (ECalendarTable *cal_table)
{
    cal_table->priv = E_CALENDAR_TABLE_GET_PRIVATE (cal_table);
}

GType
e_calendar_table_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (ECalendarTableClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) calendar_table_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (ECalendarTable),
            0,     /* n_preallocs */
            (GInstanceInitFunc) calendar_table_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            E_TABLE_TYPE, "ECalendarTable", &type_info, 0);
    }

    return type;
}

/**
 * e_calendar_table_new:
 * @shell_view: an #EShellView
 * @model: an #ECalModel for the table
 *
 * Returns a new #ECalendarTable.
 *
 * Returns: a new #ECalendarTable
 **/
GtkWidget *
e_calendar_table_new (EShellView *shell_view,
                      ECalModel *model)
{
    g_return_val_if_fail (E_IS_SHELL_VIEW (shell_view), NULL);
    g_return_val_if_fail (E_IS_CAL_MODEL (model), NULL);

    return g_object_new (
        E_TYPE_CALENDAR_TABLE,
        "model", model, "shell-view", shell_view, NULL);
}

/**
 * e_calendar_table_get_model:
 * @cal_table: A calendar table.
 *
 * Queries the calendar data model that a calendar table is using.
 *
 * Return value: A calendar model.
 **/
ECalModel *
e_calendar_table_get_model (ECalendarTable *cal_table)
{
    g_return_val_if_fail (E_IS_CALENDAR_TABLE (cal_table), NULL);

    return cal_table->priv->model;
}

EShellView *
e_calendar_table_get_shell_view (ECalendarTable *cal_table)
{
    g_return_val_if_fail (E_IS_CALENDAR_TABLE (cal_table), NULL);

    return cal_table->priv->shell_view;
}

/* Used from e_table_selected_row_foreach(); puts the selected row number in an
 * gint pointed to by the closure data.
 */
static void
get_selected_row_cb (gint model_row, gpointer data)
{
    gint *row;

    row = data;
    *row = model_row;
}

/*
 * Returns the component that is selected in the table; only works if there is
 * one and only one selected row.
 */
static ECalModelComponent *
get_selected_comp (ECalendarTable *cal_table)
{
    ECalModel *model;
    gint row;

    model = e_calendar_table_get_model (cal_table);
    if (e_table_selected_count (E_TABLE (cal_table)) != 1)
        return NULL;

    row = -1;
    e_table_selected_row_foreach (
        E_TABLE (cal_table), get_selected_row_cb, &row);
    g_return_val_if_fail (row != -1, NULL);

    return e_cal_model_get_component_at (model, row);
}

struct get_selected_uids_closure {
    ECalendarTable *cal_table;
    GSList *objects;
};

/* Used from e_table_selected_row_foreach(), builds a list of the selected UIDs */
static void
add_uid_cb (gint model_row, gpointer data)
{
    struct get_selected_uids_closure *closure = data;
    ECalModelComponent *comp_data;
    ECalModel *model;

    model = e_calendar_table_get_model (closure->cal_table);
    comp_data = e_cal_model_get_component_at (model, model_row);

    closure->objects = g_slist_prepend (closure->objects, comp_data);
}

/* Deletes all of the selected components in the table */
static void
delete_selected_components (ECalendarTable *cal_table)
{
    GSList *objs, *l;
    const gchar *status_message;

    objs = e_calendar_table_get_selected (cal_table);

    status_message = _("Deleting selected objects");
    calendar_table_emit_status_message (cal_table, status_message, -1.0);

    for (l = objs; l; l = l->next) {
        ECalModelComponent *comp_data = (ECalModelComponent *) l->data;
        GError *error = NULL;

        e_cal_remove_object (comp_data->client,
                     icalcomponent_get_uid (comp_data->icalcomp), &error);
        delete_error_dialog (error, E_CAL_COMPONENT_TODO);
        g_clear_error (&error);
    }

    calendar_table_emit_status_message (cal_table, NULL, -1.0);

    g_slist_free (objs);
}
static void
add_retract_data (ECalComponent *comp, const gchar *retract_comment)
{
    icalcomponent *icalcomp = NULL;
    icalproperty *icalprop = NULL;

    icalcomp = e_cal_component_get_icalcomponent (comp);
    if (retract_comment && *retract_comment)
        icalprop = icalproperty_new_x (retract_comment);
    else
        icalprop = icalproperty_new_x ("0");
    icalproperty_set_x_name (icalprop, "X-EVOLUTION-RETRACT-COMMENT");
    icalcomponent_add_property (icalcomp, icalprop);
}

static gboolean
check_for_retract (ECalComponent *comp, ECal *client)
{
    ECalComponentOrganizer org;
    gchar *email = NULL;
    const gchar *strip = NULL;
    gboolean ret_val = FALSE;

    if (!(e_cal_component_has_attendees (comp) &&
                e_cal_get_save_schedules (client)))
        return ret_val;

    e_cal_component_get_organizer (comp, &org);
    strip = itip_strip_mailto (org.value);

    if (e_cal_get_cal_address (client, &email, NULL) && !g_ascii_strcasecmp (email, strip)) {
        ret_val = TRUE;
    }

    g_free (email);
    return ret_val;
}

/**
 * e_calendar_table_delete_selected:
 * @cal_table: A calendar table.
 *
 * Deletes the selected components in the table; asks the user first.
 **/
void
e_calendar_table_delete_selected (ECalendarTable *cal_table)
{
    gint n_selected;
    ECalModelComponent *comp_data;
    ECalComponent *comp = NULL;
    gboolean delete = FALSE;
    GError *error = NULL;

    g_return_if_fail (cal_table != NULL);
    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    n_selected = e_table_selected_count (E_TABLE (cal_table));
    if (n_selected <= 0)
        return;

    if (n_selected == 1)
        comp_data = get_selected_comp (cal_table);
    else
        comp_data = NULL;

    /* FIXME: this may be something other than a TODO component */

    if (comp_data) {
        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (comp_data->icalcomp));
    }

    if ((n_selected == 1) && comp && check_for_retract (comp, comp_data->client)) {
        gchar *retract_comment = NULL;
        gboolean retract = FALSE;

        delete = prompt_retract_dialog (comp, &retract_comment, GTK_WIDGET (cal_table), &retract);
        if (retract) {
            GList *users = NULL;
            icalcomponent *icalcomp = NULL, *mod_comp = NULL;

            add_retract_data (comp, retract_comment);
            icalcomp = e_cal_component_get_icalcomponent (comp);
            icalcomponent_set_method (icalcomp, ICAL_METHOD_CANCEL);
            if (!e_cal_send_objects (comp_data->client, icalcomp, &users,
                        &mod_comp, &error)) {
                delete_error_dialog (error, E_CAL_COMPONENT_TODO);
                g_clear_error (&error);
                error = NULL;
            } else {

                if (mod_comp)
                    icalcomponent_free (mod_comp);

                if (users) {
                    g_list_foreach (users, (GFunc) g_free, NULL);
                    g_list_free (users);
                }
            }

        }
    } else {
        delete = delete_component_dialog (comp, FALSE, n_selected, E_CAL_COMPONENT_TODO, GTK_WIDGET (cal_table));
    }

    if (delete)
        delete_selected_components (cal_table);

    /* free memory */
    if (comp)
        g_object_unref (comp);
}

/**
 * e_calendar_table_get_selected:
 * @cal_table:
 *
 * Get the currently selected ECalModelComponent's on the table.
 *
 * Return value: A GSList of the components, which should be
 * g_slist_free'd when finished with.
 **/
GSList *
e_calendar_table_get_selected (ECalendarTable *cal_table)
{
    struct get_selected_uids_closure closure;

    closure.cal_table = cal_table;
    closure.objects = NULL;

    e_table_selected_row_foreach (
        E_TABLE (cal_table), add_uid_cb, &closure);

    return closure.objects;
}

/**
 * e_calendar_table_cut_clipboard:
 * @cal_table: A calendar table.
 *
 * Cuts selected tasks in the given calendar table
 */
void
e_calendar_table_cut_clipboard (ECalendarTable *cal_table)
{
    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    e_calendar_table_copy_clipboard (cal_table);
    delete_selected_components (cal_table);
}

/* callback for e_table_selected_row_foreach */
static void
copy_row_cb (gint model_row, gpointer data)
{
    ECalendarTable *cal_table;
    ECalModelComponent *comp_data;
    ECalModel *model;
    gchar *comp_str;
    icalcomponent *child;

    cal_table = E_CALENDAR_TABLE (data);

    g_return_if_fail (cal_table->tmp_vcal != NULL);

    model = e_calendar_table_get_model (cal_table);
    comp_data = e_cal_model_get_component_at (model, model_row);
    if (!comp_data)
        return;

    /* add timezones to the VCALENDAR component */
    e_cal_util_add_timezones_from_component (cal_table->tmp_vcal, comp_data->icalcomp);

    /* add the new component to the VCALENDAR component */
    comp_str = icalcomponent_as_ical_string_r (comp_data->icalcomp);
    child = icalparser_parse_string (comp_str);
    if (child) {
        icalcomponent_add_component (cal_table->tmp_vcal,
                         icalcomponent_new_clone (child));
        icalcomponent_free (child);
    }
    g_free (comp_str);
}

/**
 * e_calendar_table_copy_clipboard:
 * @cal_table: A calendar table.
 *
 * Copies selected tasks into the clipboard
 */
void
e_calendar_table_copy_clipboard (ECalendarTable *cal_table)
{
    GtkClipboard *clipboard;
    gchar *comp_str;

    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    /* create temporary VCALENDAR object */
    cal_table->tmp_vcal = e_cal_util_new_top_level ();

    e_table_selected_row_foreach (
        E_TABLE (cal_table), copy_row_cb, cal_table);
    comp_str = icalcomponent_as_ical_string_r (cal_table->tmp_vcal);

    clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);
    e_clipboard_set_calendar (clipboard, comp_str, -1);
    gtk_clipboard_store (clipboard);

    /* free memory */
    icalcomponent_free (cal_table->tmp_vcal);
    g_free (comp_str);
    cal_table->tmp_vcal = NULL;
}

static void
clipboard_get_calendar_data (ECalendarTable *cal_table, const gchar *text)
{
    icalcomponent *icalcomp;
    gchar *uid;
    ECalComponent *comp;
    ECalModel *model;
    ECal *client;
    icalcomponent_kind kind;
    const gchar *status_message;

    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    if (!text || !*text)
        return;

    icalcomp = icalparser_parse_string (text);
    if (!icalcomp)
        return;

    /* check the type of the component */
    kind = icalcomponent_isa (icalcomp);
    if (kind != ICAL_VCALENDAR_COMPONENT &&
        kind != ICAL_VEVENT_COMPONENT &&
        kind != ICAL_VTODO_COMPONENT &&
        kind != ICAL_VJOURNAL_COMPONENT) {
        return;
    }

    model = e_calendar_table_get_model (cal_table);
    client = e_cal_model_get_default_client (model);

    status_message = _("Updating objects");
    calendar_table_emit_status_message (cal_table, status_message, -1.0);

    if (kind == ICAL_VCALENDAR_COMPONENT) {
        icalcomponent_kind child_kind;
        icalcomponent *subcomp;
        icalcomponent *vcal_comp;

        vcal_comp = icalcomp;
        subcomp = icalcomponent_get_first_component (
            vcal_comp, ICAL_ANY_COMPONENT);
        while (subcomp) {
            child_kind = icalcomponent_isa (subcomp);
            if (child_kind == ICAL_VEVENT_COMPONENT ||
                child_kind == ICAL_VTODO_COMPONENT ||
                child_kind == ICAL_VJOURNAL_COMPONENT) {
                ECalComponent *tmp_comp;

                uid = e_cal_component_gen_uid ();
                tmp_comp = e_cal_component_new ();
                e_cal_component_set_icalcomponent (
                    tmp_comp, icalcomponent_new_clone (subcomp));
                e_cal_component_set_uid (tmp_comp, uid);
                free (uid);

                /* FIXME should we convert start/due/complete times? */
                /* FIXME Error handling */
                e_cal_create_object (client, e_cal_component_get_icalcomponent (tmp_comp), NULL, NULL);

                g_object_unref (tmp_comp);
            }
            subcomp = icalcomponent_get_next_component (
                vcal_comp, ICAL_ANY_COMPONENT);
        }
    } else {
        comp = e_cal_component_new ();
        e_cal_component_set_icalcomponent (comp, icalcomp);
        uid = e_cal_component_gen_uid ();
        e_cal_component_set_uid (comp, (const gchar *) uid);
        free (uid);

        e_cal_create_object (client, e_cal_component_get_icalcomponent (comp), NULL, NULL);

        g_object_unref (comp);
    }

    calendar_table_emit_status_message (cal_table, NULL, -1.0);
}

/**
 * e_calendar_table_paste_clipboard:
 * @cal_table: A calendar table.
 *
 * Pastes tasks currently in the clipboard into the given calendar table
 */
void
e_calendar_table_paste_clipboard (ECalendarTable *cal_table)
{
    GtkClipboard *clipboard;
    GnomeCanvasItem *item;
    GnomeCanvas *table_canvas;

    g_return_if_fail (E_IS_CALENDAR_TABLE (cal_table));

    clipboard = gtk_clipboard_get (GDK_SELECTION_CLIPBOARD);

    table_canvas = E_TABLE (cal_table)->table_canvas;
    item = table_canvas->focused_item;

    /* Paste text into a cell being edited. */
    if (gtk_clipboard_wait_is_text_available (clipboard) &&
        GTK_WIDGET_HAS_FOCUS (table_canvas) &&
        E_IS_TABLE_ITEM (item) &&
        E_TABLE_ITEM (item)->editing_col >= 0 &&
        E_TABLE_ITEM (item)->editing_row >= 0) {

        ETableItem *etable_item = E_TABLE_ITEM (item);

        e_cell_text_paste_clipboard (
            etable_item->cell_views[etable_item->editing_col],
            etable_item->editing_col,
            etable_item->editing_row);

    /* Paste iCalendar data into the table. */
    } else if (e_clipboard_wait_is_calendar_available (clipboard)) {
        gchar *calendar_source;

        calendar_source = e_clipboard_wait_for_calendar (clipboard);
        clipboard_get_calendar_data (cal_table, calendar_source);
        g_free (calendar_source);
    }
}

static void
hide_completed_rows (ECalModel *model, GList *clients_list, gchar *hide_sexp, GPtrArray *comp_objects)
{
    GList *l, *m, *objects;
    ECal *client;
    gint pos;
    gboolean changed = FALSE;

    for (l = clients_list; l != NULL; l = l->next) {
        client = l->data;

        if (!e_cal_get_object_list (client, hide_sexp, &objects, NULL)) {
            g_warning (G_STRLOC ": Could not get the objects");

            continue;
        }

        for (m = objects; m; m = m->next) {
            ECalModelComponent *comp_data;
            ECalComponentId *id;
            ECalComponent *comp = e_cal_component_new ();

            e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (m->data));
            id = e_cal_component_get_id (comp);

            if ((comp_data =  e_cal_model_get_component_for_uid (model, id))) {
                e_table_model_pre_change (E_TABLE_MODEL (model));
                pos = get_position_in_array (comp_objects, comp_data);
                e_table_model_row_deleted (E_TABLE_MODEL (model), pos);
                changed = TRUE;

                if (g_ptr_array_remove (comp_objects, comp_data))
                    e_cal_model_free_component_data (comp_data);
            }
            e_cal_component_free_id (id);
            g_object_unref (comp);
        }

        g_list_foreach (objects, (GFunc) icalcomponent_free, NULL);
        g_list_free (objects);
    }

    if (changed) {
        /* to notify about changes, because in call of row_deleted there are still all events */
        e_table_model_changed (E_TABLE_MODEL (model));
    }
}

static void
show_completed_rows (ECalModel *model, GList *clients_list, gchar *show_sexp, GPtrArray *comp_objects)
{
    GList *l, *m, *objects;
    ECal *client;

    for (l = clients_list; l != NULL; l = l->next) {
        client = l->data;

        if (!e_cal_get_object_list (client, show_sexp, &objects, NULL)) {
            g_warning (G_STRLOC ": Could not get the objects");

            continue;
        }

        for (m = objects; m; m = m->next) {
            ECalModelComponent *comp_data;
            ECalComponentId *id;
            ECalComponent *comp = e_cal_component_new ();

            e_cal_component_set_icalcomponent (comp, icalcomponent_new_clone (m->data));
            id = e_cal_component_get_id (comp);

            if (!(e_cal_model_get_component_for_uid (model, id))) {
                e_table_model_pre_change (E_TABLE_MODEL (model));
                comp_data = g_object_new (E_TYPE_CAL_MODEL_COMPONENT, NULL);
                comp_data->client = g_object_ref (client);
                comp_data->icalcomp = icalcomponent_new_clone (m->data);
                e_cal_model_set_instance_times (comp_data,
                        e_cal_model_get_timezone (model));
                comp_data->dtstart = comp_data->dtend = comp_data->due = comp_data->completed = NULL;
                comp_data->color = NULL;

                g_ptr_array_add (comp_objects, comp_data);
                e_table_model_row_inserted (E_TABLE_MODEL (model), comp_objects->len - 1);
            }
            e_cal_component_free_id (id);
            g_object_unref (comp);
        }
    }
}

/* Returns the current time, for the ECellDateEdit items.
   FIXME: Should probably use the timezone of the item rather than the
   current timezone, though that may be difficult to get from here. */
static struct tm
e_calendar_table_get_current_time (ECellDateEdit *ecde, gpointer data)
{
    ECalendarTable *cal_table = data;
    ECalModel *model;
    icaltimezone *zone;
    struct tm tmp_tm = { 0 };
    struct icaltimetype tt;

    /* Get the current timezone. */
    model = e_calendar_table_get_model (cal_table);
    zone = e_cal_model_get_timezone (model);

    tt = icaltime_from_timet_with_zone (time (NULL), FALSE, zone);

    /* Now copy it to the struct tm and return it. */
    tmp_tm.tm_year  = tt.year - 1900;
    tmp_tm.tm_mon   = tt.month - 1;
    tmp_tm.tm_mday  = tt.day;
    tmp_tm.tm_hour  = tt.hour;
    tmp_tm.tm_min   = tt.minute;
    tmp_tm.tm_sec   = tt.second;
    tmp_tm.tm_isdst = -1;

    return tmp_tm;
}

/**
 * e_calendar_table_hide_completed_tasks:
 * @table: A calendar table model.
 * @client_list: Clients List
 *
 * Hide completed tasks.
 */
void
e_calendar_table_process_completed_tasks (ECalendarTable *table,
                                          GList *clients_list,
                                          gboolean config_changed)
{
    ECalModel *model;
    static GMutex *mutex = NULL;
    gchar *hide_sexp, *show_sexp;
    GPtrArray *comp_objects = NULL;

    if (!mutex)
        mutex = g_mutex_new ();

    g_mutex_lock (mutex);

    model = e_calendar_table_get_model (table);
    comp_objects = e_cal_model_get_object_array (model);

    hide_sexp = calendar_config_get_hide_completed_tasks_sexp (TRUE);
    show_sexp = calendar_config_get_hide_completed_tasks_sexp (FALSE);

    /* If hide option is unchecked */
    if (!(hide_sexp && show_sexp))
        show_sexp = g_strdup ("(is-completed?)");

    /* Delete rows from model*/
    if (hide_sexp) {
        hide_completed_rows (model, clients_list, hide_sexp, comp_objects);
    }

    /* Insert rows into model */
    if (config_changed) {
        show_completed_rows (model, clients_list, show_sexp, comp_objects);
    }

    g_free (hide_sexp);
    g_free (show_sexp);
    g_mutex_unlock (mutex);
}