path: root/calendar/gui/dialogs/cal-prefs-dialog.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/*
 * Authors :
 *  Damon Chaplin <damon@ximian.com>
 *  Ettore Perazzoli <ettore@ximian.com>
 *
 * Copyright 2000, 2001, 2002 Ximian, Inc.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 *
 * 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
 */

/*
 * CalPrefsDialog - a GtkObject which handles a libglade-loaded dialog
 * to edit the calendar preference settings.
 */

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

#include "../e-timezone-entry.h"
#include "cal-prefs-dialog.h"
#include "../calendar-config.h"
#include "url-editor-dialog.h"

#include <gtk/gtk.h>
#include <gtk/gtkmain.h>
#include <gtk/gtksignal.h>
#include <gtk/gtkoptionmenu.h>
#include <gtk/gtktogglebutton.h>
#include <libxml/tree.h>
#include <string.h>
#include <libgnome/gnome-i18n.h>
#include <libgnomeui/gnome-color-picker.h>
#include <glade/glade.h>
#include <gal/util/e-util.h>
#include <e-util/e-dialog-widgets.h>
#include <widgets/misc/e-dateedit.h>


static const int week_start_day_map[] = {
    1, 2, 3, 4, 5, 6, 0, -1
};

static const int time_division_map[] = {
    60, 30, 15, 10, 5, -1
};

/* The following two are kept separate in case we need to re-order each menu individually */
static const int hide_completed_units_map[] = {
    CAL_MINUTES, CAL_HOURS, CAL_DAYS, -1
};

static const int default_reminder_units_map[] = {
    CAL_MINUTES, CAL_HOURS, CAL_DAYS, -1
};

static gboolean get_widgets (DialogData *data);

static void widget_changed_callback (GtkWidget *, void *data);
static void connect_changed (GtkWidget *widget, const char *signal_name, EvolutionConfigControl *config_control);
static void setup_changes (DialogData *data, EvolutionConfigControl *config_control);

static void init_widgets (DialogData *data);
static void show_config (DialogData *data);
static void update_config (DialogData *dialog_data);

static void config_control_apply_callback (EvolutionConfigControl *config_control, void *data);
static void config_control_destroy_callback (GtkObject *object, void *data);

static void cal_prefs_dialog_use_24_hour_toggled(GtkWidget *button, void *data);
static void cal_prefs_dialog_end_of_day_changed (GtkWidget *button, void *data);
static void cal_prefs_dialog_start_of_day_changed (GtkWidget *button, void *data);
static void cal_prefs_dialog_hide_completed_tasks_toggled (GtkWidget *button, void *data);

static void cal_prefs_dialog_url_add_clicked (GtkWidget *button, void *data);
static void cal_prefs_dialog_url_edit_clicked (GtkWidget *button, void *data);
static void cal_prefs_dialog_url_remove_clicked (GtkWidget *button, void *data);
static void cal_prefs_dialog_url_enable_clicked (GtkWidget *button, void *data);
static void cal_prefs_dialog_url_list_change (GtkTreeSelection *selection, 
                          DialogData *dialog_data);
static void cal_prefs_dialog_url_list_enable_toggled (GtkCellRendererToggle *renderer, const char *path_string, void *data);
static void cal_prefs_dialog_url_list_double_click(GtkTreeView *treeview, 
                           GtkTreePath *path, 
                           GtkTreeViewColumn *column, 
                           DialogData *dialog_data);
static void show_fb_config (DialogData *dialog_data);
static void update_fb_config (DialogData *dialog_data);

GtkWidget *cal_prefs_dialog_create_time_edit (void);

#define PREFS_WINDOW(dialog_data) GTK_WINDOW (gtk_widget_get_ancestor (GTK_WIDGET (dialog_data), GTK_TYPE_WINDOW))

/**
 * cal_prefs_dialog_new:
 *
 * Creates a new #CalPrefsDialog.
 *
 * Return value: a new #CalPrefsDialog.
 **/
EvolutionConfigControl *
cal_prefs_dialog_new (void)
{
    DialogData *dialog_data;
    EvolutionConfigControl *config_control;

    dialog_data = g_new0 (DialogData, 1);

    /* Load the content widgets */

    dialog_data->xml = glade_xml_new (EVOLUTION_GLADEDIR "/cal-prefs-dialog.glade", NULL, NULL);
    if (!dialog_data->xml) {
        g_message ("cal_prefs_dialog_construct(): Could not load the Glade XML file!");
        return NULL;
    }

    if (!get_widgets (dialog_data)) {
        g_message ("cal_prefs_dialog_construct(): Could not find all widgets in the XML file!");
        return NULL;
    }

    init_widgets (dialog_data);
    show_config (dialog_data);

    gtk_widget_ref (dialog_data->page);
    gtk_container_remove (GTK_CONTAINER (dialog_data->page->parent), dialog_data->page);
    config_control = evolution_config_control_new (dialog_data->page);
    gtk_widget_unref (dialog_data->page);

    g_signal_connect((config_control), "apply",
                G_CALLBACK (config_control_apply_callback), dialog_data);
    g_signal_connect((config_control), "destroy",
                G_CALLBACK (config_control_destroy_callback), dialog_data);

    setup_changes (dialog_data, config_control);

    return config_control;
}

static void
widget_changed_callback (GtkWidget *widget,
             void *data)
{
    EvolutionConfigControl *config_control;

    config_control = EVOLUTION_CONFIG_CONTROL (data);

    evolution_config_control_changed (config_control);
}

/* ^*&%!!#! GnomeColorPicker.  */
static void
color_set_callback (GnomeColorPicker *cp,
            guint r,
            guint g,
            guint b,
            guint a,
            void *data)
{
    EvolutionConfigControl *config_control;

    config_control = EVOLUTION_CONFIG_CONTROL (data);

    evolution_config_control_changed (config_control);
}

static void
connect_changed (GtkWidget *widget,
         const char *signal_name,
         EvolutionConfigControl *config_control)
{
    g_signal_connect((widget), signal_name,
                G_CALLBACK (widget_changed_callback), config_control);
}

static void
setup_changes (DialogData *dialog_data,
           EvolutionConfigControl *config_control)
{
    int i;

    for (i = 0; i < 7; i ++)
        connect_changed (dialog_data->working_days[i], "toggled", config_control);

    connect_changed (dialog_data->timezone, "changed", config_control);

    connect_changed (dialog_data->start_of_day, "changed", config_control);
    connect_changed (dialog_data->end_of_day, "changed", config_control);

    connect_changed (GTK_OPTION_MENU (dialog_data->week_start_day)->menu, "selection_done", config_control);

    connect_changed (dialog_data->use_12_hour, "toggled", config_control);

    connect_changed (GTK_OPTION_MENU (dialog_data->time_divisions)->menu, "selection_done", config_control);

    connect_changed (dialog_data->show_end_times, "toggled", config_control);
    connect_changed (dialog_data->compress_weekend, "toggled", config_control);
    connect_changed (dialog_data->dnav_show_week_no, "toggled", config_control);

    connect_changed (dialog_data->tasks_hide_completed_checkbutton, "toggled", config_control);
    connect_changed (dialog_data->tasks_hide_completed_spinbutton, "changed", config_control);
    connect_changed (GTK_OPTION_MENU (dialog_data->tasks_hide_completed_optionmenu)->menu, "selection_done", config_control);

    connect_changed (dialog_data->confirm_delete, "toggled", config_control);
    connect_changed (dialog_data->default_reminder, "toggled", config_control);
    connect_changed (dialog_data->default_reminder_interval, "changed", config_control);
    connect_changed (GTK_OPTION_MENU (dialog_data->default_reminder_units)->menu, "selection_done", config_control);

    connect_changed ((GtkWidget *) gtk_tree_view_get_selection (dialog_data->url_list), "changed", config_control);
    
    /* These use GnomeColorPicker so we have to use a different signal.  */
    g_signal_connect((dialog_data->tasks_due_today_color), "color_set",
                G_CALLBACK (color_set_callback), config_control);
    g_signal_connect((dialog_data->tasks_overdue_color), "color_set",
                G_CALLBACK (color_set_callback), config_control);
}

/* Gets the widgets from the XML file and returns if they are all available.
 */
static gboolean
get_widgets (DialogData *data)
{
#define GW(name) glade_xml_get_widget (data->xml, name)

    data->page = GW ("toplevel-notebook");

    /* The indices must be 0 (Sun) to 6 (Sat). */
    data->working_days[0] = GW ("sun_button");
    data->working_days[1] = GW ("mon_button");
    data->working_days[2] = GW ("tue_button");
    data->working_days[3] = GW ("wed_button");
    data->working_days[4] = GW ("thu_button");
    data->working_days[5] = GW ("fri_button");
    data->working_days[6] = GW ("sat_button");

    data->timezone = GW ("timezone");
    data->week_start_day = GW ("first_day_of_week");
    data->start_of_day = GW ("start_of_day");
    gtk_widget_show (data->start_of_day);
    data->end_of_day = GW ("end_of_day");
    gtk_widget_show (data->end_of_day);
    data->use_12_hour = GW ("use_12_hour");
    data->use_24_hour = GW ("use_24_hour");
    data->time_divisions = GW ("time_divisions");
    data->show_end_times = GW ("show_end_times");
    data->compress_weekend = GW ("compress_weekend");
    data->dnav_show_week_no = GW ("dnav_show_week_no");

    data->tasks_due_today_color = GW ("tasks_due_today_color");
    data->tasks_overdue_color = GW ("tasks_overdue_color");

    data->tasks_hide_completed_checkbutton = GW ("tasks-hide-completed-checkbutton");
    data->tasks_hide_completed_spinbutton = GW ("tasks-hide-completed-spinbutton");
    data->tasks_hide_completed_optionmenu = GW ("tasks-hide-completed-optionmenu");

    data->confirm_delete = GW ("confirm-delete");
    data->default_reminder = GW ("default-reminder");
    data->default_reminder_interval = GW ("default-reminder-interval");
    data->default_reminder_units = GW ("default-reminder-units");
    
    data->url_add = GW ("url_add");
    data->url_edit = GW ("url_edit");
    data->url_remove = GW ("url_remove");
    data->url_enable = GW ("url_enable");
    data->url_list = GTK_TREE_VIEW (GW ("url_list"));

#undef GW

    return (data->page
        && data->timezone
        && data->working_days[0]
        && data->working_days[1]
        && data->working_days[2]
        && data->working_days[3]
        && data->working_days[4]
        && data->working_days[5]
        && data->working_days[6]
        && data->week_start_day
        && data->start_of_day
        && data->end_of_day
        && data->use_12_hour
        && data->use_24_hour
        && data->time_divisions
        && data->show_end_times
        && data->compress_weekend
        && data->dnav_show_week_no
        && data->tasks_due_today_color
        && data->tasks_overdue_color
        && data->tasks_hide_completed_checkbutton
        && data->tasks_hide_completed_spinbutton
        && data->tasks_hide_completed_optionmenu
        && data->confirm_delete
        && data->default_reminder
        && data->default_reminder_interval
        && data->default_reminder_units
        && data->url_add
        && data->url_edit
        && data->url_remove
        && data->url_enable
        && data->url_list);
}


static void
config_control_destroy_callback (GtkObject *object,
                 void *data)
{
    DialogData *dialog_data;

    dialog_data = (DialogData *) data;

    g_object_unref (dialog_data->xml);
    
    g_free (dialog_data);
}


static void
config_control_apply_callback (EvolutionConfigControl *control,
                   void *data)
{
    DialogData *dialog_data;

    dialog_data = (DialogData *) data;

    update_config (dialog_data);
}


/* Called by libglade to create our custom EDateEdit widgets. */
GtkWidget *
cal_prefs_dialog_create_time_edit (void)
{
    GtkWidget *dedit;

    dedit = e_date_edit_new ();

    e_date_edit_set_use_24_hour_format (E_DATE_EDIT (dedit), calendar_config_get_24_hour_format ());
    e_date_edit_set_time_popup_range (E_DATE_EDIT (dedit), 0, 24);
    e_date_edit_set_show_date (E_DATE_EDIT (dedit), FALSE);

    return dedit;
}


/* Connects any necessary signal handlers. */
static void
init_widgets (DialogData *dialog_data)
{
    GtkCellRenderer *renderer = NULL;
    GtkTreeSelection *selection;
    GtkListStore *model;
    
    dialog_data->url_editor = FALSE;
    dialog_data->url_editor_dlg =NULL;
    
    g_signal_connect((dialog_data->use_24_hour), "toggled",
                G_CALLBACK (cal_prefs_dialog_use_24_hour_toggled),
                dialog_data);

    g_signal_connect((dialog_data->start_of_day), "changed",
                G_CALLBACK (cal_prefs_dialog_start_of_day_changed),
                dialog_data);

    g_signal_connect((dialog_data->end_of_day), "changed",
                G_CALLBACK (cal_prefs_dialog_end_of_day_changed),
                dialog_data);

    g_signal_connect((dialog_data->tasks_hide_completed_checkbutton),
                "toggled",
                G_CALLBACK (cal_prefs_dialog_hide_completed_tasks_toggled),
                dialog_data);
    
    /* Free/Busy ... */
    g_signal_connect ((dialog_data->url_add), "clicked",
                G_CALLBACK (cal_prefs_dialog_url_add_clicked),
                dialog_data);

    g_signal_connect ((dialog_data->url_edit), "clicked",
                G_CALLBACK (cal_prefs_dialog_url_edit_clicked),
                dialog_data);

    g_signal_connect ((dialog_data->url_remove), "clicked",
                G_CALLBACK (cal_prefs_dialog_url_remove_clicked),
                dialog_data);

    g_signal_connect ((dialog_data->url_enable), "clicked",
                G_CALLBACK (cal_prefs_dialog_url_enable_clicked),
                dialog_data);

    /* Free/Busy Listview */
    renderer = gtk_cell_renderer_toggle_new();
    g_object_set ((GObject *) renderer, "activatable", TRUE, NULL);
    
    model = gtk_list_store_new (URL_LIST_N_COLUMNS, G_TYPE_BOOLEAN,
                    G_TYPE_STRING, G_TYPE_POINTER);
    
    gtk_tree_view_set_model (dialog_data->url_list, 
                 (GtkTreeModel *) model);

    gtk_tree_view_insert_column_with_attributes (dialog_data->url_list, -1,
                            _("Enabled"), renderer,
                            "active", 
                             URL_LIST_ENABLED_COLUMN, 
                            NULL);

    g_signal_connect (renderer, "toggled", 
             G_CALLBACK (cal_prefs_dialog_url_list_enable_toggled),
             dialog_data);
    
    renderer = gtk_cell_renderer_text_new ();
    gtk_tree_view_insert_column_with_attributes (dialog_data->url_list, -1, 
                            _("Location"), renderer,
                            "text", 
                            URL_LIST_LOCATION_COLUMN, 
                            NULL);
    
    selection = gtk_tree_view_get_selection ((GtkTreeView *) dialog_data->url_list);
    gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
    gtk_tree_view_set_headers_visible ((GtkTreeView *) dialog_data->url_list, TRUE);
    
    
    g_signal_connect (gtk_tree_view_get_selection (dialog_data->url_list),
              "changed", 
              G_CALLBACK (cal_prefs_dialog_url_list_change), 
              dialog_data);
    
    g_signal_connect (dialog_data->url_list, "row-activated",
             G_CALLBACK (cal_prefs_dialog_url_list_double_click),
             dialog_data);
}

static void
cal_prefs_dialog_use_24_hour_toggled (GtkWidget *button,
                      void *data)
{
    DialogData *dialog_data;
    gboolean use_24_hour;

    dialog_data = (DialogData *) data;

    use_24_hour = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (dialog_data->use_24_hour));

    e_date_edit_set_use_24_hour_format (E_DATE_EDIT (dialog_data->start_of_day), use_24_hour);
    e_date_edit_set_use_24_hour_format (E_DATE_EDIT (dialog_data->end_of_day), use_24_hour);
}

static void
cal_prefs_dialog_start_of_day_changed (GtkWidget *button, void *data)
{
    DialogData *dialog_data;
    EDateEdit *start, *end;
    int start_hour, start_minute, end_hour, end_minute;
    
    dialog_data = (DialogData *) data;

    start = E_DATE_EDIT (dialog_data->start_of_day);
    end = E_DATE_EDIT (dialog_data->end_of_day);
    
    e_date_edit_get_time_of_day (start, &start_hour, &start_minute);
    e_date_edit_get_time_of_day (end, &end_hour, &end_minute);

    if ((start_hour > end_hour) 
        || (start_hour == end_hour && start_minute > end_minute)) {

        if (start_hour < 23)
            e_date_edit_set_time_of_day (end, start_hour + 1, start_minute);
        else
            e_date_edit_set_time_of_day (end, 23, 59);
    }
}

static void
cal_prefs_dialog_end_of_day_changed (GtkWidget *button, void *data)
{
    DialogData *dialog_data;
    EDateEdit *start, *end;
    int start_hour, start_minute, end_hour, end_minute;
    
    dialog_data = (DialogData *) data;

    start = E_DATE_EDIT (dialog_data->start_of_day);
    end = E_DATE_EDIT (dialog_data->end_of_day);
    
    e_date_edit_get_time_of_day (start, &start_hour, &start_minute);
    e_date_edit_get_time_of_day (end, &end_hour, &end_minute);

    if ((end_hour < start_hour) 
        || (end_hour == start_hour && end_minute < start_minute)) {
        if (end_hour < 1)
            e_date_edit_set_time_of_day (start, 0, 0);
        else
            e_date_edit_set_time_of_day (start, end_hour - 1, end_minute);
    }
}

static void
cal_prefs_dialog_hide_completed_tasks_toggled   (GtkWidget *button,
                         void *data)
{
    DialogData *dialog_data;
    gboolean hide_completed_tasks;

    dialog_data = (DialogData *) data;

    hide_completed_tasks = gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (dialog_data->tasks_hide_completed_checkbutton));

    gtk_widget_set_sensitive (dialog_data->tasks_hide_completed_spinbutton, hide_completed_tasks);
    gtk_widget_set_sensitive (dialog_data->tasks_hide_completed_optionmenu, hide_completed_tasks);
}

/* Sets the color in a color picker from an X color spec */
static void
set_color_picker (GtkWidget *picker, const char *spec)
{
    GdkColor color;

    if (!spec || !gdk_color_parse (spec, &color))
        color.red = color.green = color.blue = 0;

    gnome_color_picker_set_i16 (GNOME_COLOR_PICKER (picker),
                    color.red,
                    color.green,
                    color.blue,
                    65535);
}

static void
cal_prefs_dialog_url_add_clicked  (GtkWidget *button, void *data)
{
    DialogData *dialog_data = (DialogData *) data;
    EPublishUri *url = NULL;
    GtkTreeModel *model;
    GtkTreeIter iter;
    GtkTreeSelection *selection;
    
    model = gtk_tree_view_get_model (dialog_data->url_list);
    url = g_new0 (EPublishUri, 1);
    url->enabled = TRUE;
    url->location = "";
    
    if (!dialog_data->url_editor) {
            
        dialog_data->url_editor = url_editor_dialog_new (dialog_data, 
                                 url);
    
        if (url->location != "") {
            gtk_list_store_append(GTK_LIST_STORE (model), &iter);
            gtk_list_store_set (GTK_LIST_STORE(model), &iter, 
                       URL_LIST_ENABLED_COLUMN, 
                       url->enabled,
                       URL_LIST_LOCATION_COLUMN, 
                       g_strdup (url->location),
                       URL_LIST_FREE_BUSY_URL_COLUMN, url,
                       -1);
        
            if (!GTK_WIDGET_SENSITIVE ((GtkWidget *) dialog_data->url_remove)) {
                selection = gtk_tree_view_get_selection ((GtkTreeView *) dialog_data->url_list);
                gtk_tree_model_get_iter_first ((GtkTreeModel *) model, &iter);
                gtk_widget_set_sensitive ((GtkWidget*) dialog_data->url_remove, TRUE);
                gtk_tree_selection_select_iter (selection, &iter);
            }   
        }
        dialog_data->url_editor = FALSE;
        dialog_data->url_editor_dlg = NULL;
    } else {
        gdk_window_raise (dialog_data->url_editor_dlg->window);
    }   
}

static void
cal_prefs_dialog_url_edit_clicked  (GtkWidget *button, void *data)
{
    DialogData *dialog_data = (DialogData *) data;
    
    if (!dialog_data->url_editor) {
        GtkTreeSelection *selection;
        EPublishUri *url = NULL;
        GtkTreeModel *model;
        GtkTreeIter iter;
        
        selection = gtk_tree_view_get_selection ((GtkTreeView *) dialog_data->url_list);
        if (gtk_tree_selection_get_selected (selection, &model, &iter)){
            gtk_tree_model_get (model, &iter, 
                        URL_LIST_FREE_BUSY_URL_COLUMN, 
                        &url, 
                        -1);

        }

        if (url) {
            
            dialog_data->url_editor = url_editor_dialog_new (dialog_data, url);
    
            gtk_list_store_set ((GtkListStore *) model, &iter, 
                       URL_LIST_LOCATION_COLUMN, 
                       g_strdup (url->location), 
                       URL_LIST_ENABLED_COLUMN, 
                       url->enabled, 
                       URL_LIST_FREE_BUSY_URL_COLUMN, url,
                       -1);

            if (!GTK_WIDGET_SENSITIVE ((GtkWidget *) dialog_data->url_remove)) {
                selection = gtk_tree_view_get_selection ((GtkTreeView *) dialog_data->url_list);
                gtk_tree_model_get_iter_first ((GtkTreeModel *) model, &iter);
                gtk_widget_set_sensitive ((GtkWidget*) dialog_data->url_remove, TRUE);
                gtk_tree_selection_select_iter (selection, &iter);
            }
            dialog_data->url_editor = FALSE;
            dialog_data->url_editor_dlg = NULL;
        }
    } else {
        gdk_window_raise (dialog_data->url_editor_dlg->window);
    }   
}

static void
cal_prefs_dialog_url_remove_clicked  (GtkWidget *button, void *data)
{
    DialogData *dialog_data = (DialogData *) data;
    EPublishUri *url = NULL;
    GtkTreeSelection * selection;
    GtkTreeModel *model;
    GtkWidget *confirm;
    GtkTreeIter iter;
    int ans;
    
    selection = gtk_tree_view_get_selection (dialog_data->url_list);
    if (gtk_tree_selection_get_selected (selection, &model, &iter))
        gtk_tree_model_get (model, &iter, 
                    URL_LIST_FREE_BUSY_URL_COLUMN, &url, 
                    -1);
    
    /* make sure we have a valid account selected and that 
       we aren't editing anything... */
    if (url == NULL || dialog_data->url_editor)
        return;
    
    confirm = gtk_message_dialog_new (PREFS_WINDOW (dialog_data),
                      GTK_DIALOG_MODAL|GTK_DIALOG_DESTROY_WITH_PARENT,
                      GTK_MESSAGE_QUESTION, 
                      GTK_BUTTONS_NONE,
                      _("Are you sure you want to remove this URL?"));
    
    (GtkButton *) button = gtk_button_new_from_stock (GTK_STOCK_YES);
    gtk_button_set_label ((GtkButton *) button, _("Remove"));
    gtk_dialog_add_action_widget ((GtkDialog *) confirm, (GtkWidget *) button, GTK_RESPONSE_YES);
    gtk_widget_show ((GtkWidget *) button);
    
    (GtkButton *) button = gtk_button_new_from_stock (GTK_STOCK_NO);
    gtk_button_set_label ((GtkButton *) button, _("Don't Remove"));
    gtk_dialog_add_action_widget ((GtkDialog *) confirm, 
                      (GtkWidget *) button, GTK_RESPONSE_NO);

    gtk_widget_show ((GtkWidget *) button);
    
    ans = gtk_dialog_run ((GtkDialog *) confirm);
    gtk_widget_destroy (confirm);
    
    if (ans == GTK_RESPONSE_YES) {
        int len;
        
        gtk_list_store_remove ((GtkListStore *) model, &iter);
        
        len = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (model), NULL);
        if (len > 0) {
            gtk_tree_selection_select_iter (selection, &iter);
        } else {
            gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_edit), FALSE);
            gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_remove), FALSE);
            gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_enable), FALSE);
        }
        g_free (url);
    }
}

static void
cal_prefs_dialog_url_enable_clicked  (GtkWidget *button, void *data)
{
    DialogData *dialog_data = (DialogData *) data;
    EPublishUri *url = NULL;
    GtkTreeSelection * selection;
    GtkTreeModel *model;
    GtkTreeIter iter;
    
    selection = gtk_tree_view_get_selection (dialog_data->url_list);
    if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
        gtk_tree_model_get (model, &iter, 
                    URL_LIST_FREE_BUSY_URL_COLUMN, &url, 
                    -1);
        url->enabled = !url->enabled;
        gtk_list_store_set ((GtkListStore *) model, &iter, 
                    URL_LIST_ENABLED_COLUMN, url->enabled, 
                    -1);
        
        gtk_button_set_label ((GtkButton *) dialog_data->url_enable, 
                      url->enabled ? _("Disable") : _("Enable"));
    }
}
 
static void
cal_prefs_dialog_url_list_enable_toggled (GtkCellRendererToggle *renderer, 
                       const char *path_string, 
                       void *data)
{
    DialogData *dialog_data = (DialogData *) data;
    GtkTreeSelection * selection;
    EPublishUri *url = NULL;
    GtkTreeModel *model;
    GtkTreePath *path;
    GtkTreeIter iter;
    
    path = gtk_tree_path_new_from_string (path_string);
    model = gtk_tree_view_get_model (dialog_data->url_list);
    selection = gtk_tree_view_get_selection (dialog_data->url_list);

    if (gtk_tree_model_get_iter (model, &iter, path)) {
        gtk_tree_model_get (model, &iter, 
                    URL_LIST_FREE_BUSY_URL_COLUMN, &url, 
                    -1);

        url->enabled = !url->enabled;
        gtk_list_store_set((GtkListStore *) model, &iter, 
                   URL_LIST_ENABLED_COLUMN,
                   url->enabled, -1);

        if (gtk_tree_selection_iter_is_selected (selection, &iter))
            gtk_button_set_label ((GtkButton *) dialog_data->url_enable, 
                          url->enabled ? _("Disable") : _("Enable"));
    }

    gtk_tree_path_free (path);
}

static void
cal_prefs_dialog_url_list_double_click (GtkTreeView *treeview, 
                    GtkTreePath *path, 
                    GtkTreeViewColumn *column, 
                    DialogData *dialog_data)
{
    cal_prefs_dialog_url_edit_clicked  (NULL, dialog_data);
}               

static void
cal_prefs_dialog_url_list_change (GtkTreeSelection *selection, 
                  DialogData *dialog_data)
{
    EPublishUri *url = NULL;
    GtkTreeModel *model;
    GtkTreeIter iter;
    int state;
    
    state = gtk_tree_selection_get_selected (selection, &model, &iter);
    if (state) {
        gtk_tree_model_get (model, &iter, 
                    URL_LIST_FREE_BUSY_URL_COLUMN, &url, 
                    -1);

        if (url->location && url->enabled)
            gtk_button_set_label ((GtkButton *) dialog_data->url_enable, _("Disable"));
        else
            gtk_button_set_label ((GtkButton *) dialog_data->url_enable, _("Enable"));
    } else {
        gtk_widget_grab_focus (GTK_WIDGET (dialog_data->url_add));
    }
    
    gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_edit), state);
    gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_remove), state);
    gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_enable), state);
}

/* Shows the current Free/Busy settings in the dialog */
static void
show_fb_config (DialogData *dialog_data)
{
    GSList *url_config_list;
    GtkListStore *model;
    GtkTreeIter iter;
    
    model = (GtkListStore *) gtk_tree_view_get_model (dialog_data->url_list);
    gtk_list_store_clear (model);
    
    /* restore urls from gconf */
    url_config_list = calendar_config_get_free_busy();
    
    while (url_config_list) {
        gchar *xml = (gchar *)url_config_list->data;
        EPublishUri *url;
        url = g_new0 (EPublishUri, 1);
        
        e_pub_uri_from_xml (url, xml);
        if (url->location) {
            gtk_list_store_append (model, &iter);
            gtk_list_store_set (model, &iter, 
                       URL_LIST_ENABLED_COLUMN, 
                       url->enabled,
                       URL_LIST_LOCATION_COLUMN, 
                       url->location,
                       URL_LIST_FREE_BUSY_URL_COLUMN, url,
                       -1);
        }

        url_config_list = g_slist_next (url_config_list);
        g_free (xml);
    }

    g_slist_foreach (url_config_list, (GFunc) g_free, NULL);
    g_slist_free (url_config_list);
    if (!gtk_tree_model_get_iter_first ((GtkTreeModel *) model, &iter)) {
        /* list is empty-disable edit, remove, and enable buttons */
        gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_edit), 
                     FALSE);

        gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_remove), 
                     FALSE);

        gtk_widget_set_sensitive (GTK_WIDGET (dialog_data->url_enable), 
                     FALSE);
    }
}

/* Shows the current task list settings in the dialog */
static void
show_task_list_config (DialogData *dialog_data)
{
    CalUnits units;
    gboolean hide_completed_tasks;

    set_color_picker (dialog_data->tasks_due_today_color, calendar_config_get_tasks_due_today_color ());
    set_color_picker (dialog_data->tasks_overdue_color, calendar_config_get_tasks_overdue_color ());

    /* Hide Completed Tasks. */
    hide_completed_tasks = calendar_config_get_hide_completed_tasks ();
    e_dialog_toggle_set (dialog_data->tasks_hide_completed_checkbutton,
                 hide_completed_tasks);

    /* Hide Completed Tasks Units. */
    units = calendar_config_get_hide_completed_tasks_units ();
    e_dialog_option_menu_set (dialog_data->tasks_hide_completed_optionmenu,
                  units, hide_completed_units_map);

    /* Hide Completed Tasks Value. */
    e_dialog_spin_set (dialog_data->tasks_hide_completed_spinbutton,
               calendar_config_get_hide_completed_tasks_value ());

    gtk_widget_set_sensitive (dialog_data->tasks_hide_completed_spinbutton,
                  hide_completed_tasks);
    gtk_widget_set_sensitive (dialog_data->tasks_hide_completed_optionmenu,
                  hide_completed_tasks);
}

/* Shows the current config settings in the dialog. */
static void
show_config (DialogData *dialog_data)
{
    CalWeekdays working_days;
    gint mask, day, week_start_day, time_divisions;
    icaltimezone *zone;
    gboolean sensitive;

    /* Timezone. */
    zone = calendar_config_get_icaltimezone ();
    e_timezone_entry_set_timezone (E_TIMEZONE_ENTRY (dialog_data->timezone),
                       zone);

    /* Working Days. */
    working_days = calendar_config_get_working_days ();
    mask = 1 << 0;
    for (day = 0; day < 7; day++) {
        e_dialog_toggle_set (dialog_data->working_days[day], (working_days & mask) ? TRUE : FALSE);
        mask <<= 1;
    }

    /* Week Start Day. */
    week_start_day = calendar_config_get_week_start_day ();
    e_dialog_option_menu_set (dialog_data->week_start_day, week_start_day,
                  week_start_day_map);

    /* Start of Day. */
    e_date_edit_set_time_of_day (E_DATE_EDIT (dialog_data->start_of_day),
                     calendar_config_get_day_start_hour (),
                     calendar_config_get_day_start_minute ());

    /* End of Day. */
    e_date_edit_set_time_of_day (E_DATE_EDIT (dialog_data->end_of_day),
                     calendar_config_get_day_end_hour (),
                     calendar_config_get_day_end_minute ());

    /* 12/24 Hour Format. */
    if (calendar_config_get_24_hour_format ())
        e_dialog_toggle_set (dialog_data->use_24_hour, TRUE);
    else
        e_dialog_toggle_set (dialog_data->use_12_hour, TRUE);

    sensitive = calendar_config_locale_supports_12_hour_format ();
    gtk_widget_set_sensitive (dialog_data->use_12_hour, sensitive);
    gtk_widget_set_sensitive (dialog_data->use_24_hour, sensitive);


    /* Time Divisions. */
    time_divisions = calendar_config_get_time_divisions ();
    e_dialog_option_menu_set (dialog_data->time_divisions, time_divisions,
                  time_division_map);

    /* Show Appointment End Times. */
    e_dialog_toggle_set (dialog_data->show_end_times, calendar_config_get_show_event_end ());

    /* Compress Weekend. */
    e_dialog_toggle_set (dialog_data->compress_weekend, calendar_config_get_compress_weekend ());

    /* Date Navigator - Show Week Numbers. */
    e_dialog_toggle_set (dialog_data->dnav_show_week_no, calendar_config_get_dnav_show_week_no ());

    /* Task list */

    show_task_list_config (dialog_data);
    
    /* Free/Busy */
    show_fb_config (dialog_data);

    /* Other page */

    e_dialog_toggle_set (dialog_data->confirm_delete, calendar_config_get_confirm_delete ());

    e_dialog_toggle_set (dialog_data->default_reminder,
                 calendar_config_get_use_default_reminder ());
    e_dialog_spin_set (dialog_data->default_reminder_interval,
               calendar_config_get_default_reminder_interval ());
    e_dialog_option_menu_set (dialog_data->default_reminder_units,
                  calendar_config_get_default_reminder_units (),
                  default_reminder_units_map);
}

/* Returns a pointer to a static string with an X color spec for the current
 * value of a color picker.
 */
static const char *
spec_from_picker (GtkWidget *picker)
{
    static char spec[8];
    guint8 r, g, b;

    gnome_color_picker_get_i8 (GNOME_COLOR_PICKER (picker), &r, &g, &b, NULL);
    g_snprintf (spec, sizeof (spec), "#%02x%02x%02x", r, g, b);

    return spec;
}

/* Updates the Free/Busy config values from the settings in the dialog*/
static void
update_fb_config (DialogData *dialog_data)
{
    GtkTreeIter iter;
    GtkListStore *model = NULL;
    gboolean valid;
    GSList *url_list;
    
    url_list = NULL;
    
    model = (GtkListStore *) gtk_tree_view_get_model (dialog_data->url_list);
    
    valid = gtk_tree_model_get_iter_first ((GtkTreeModel *) model, &iter);
    while (valid) {
        EPublishUri *url;
        gchar *xml;
        
        gtk_tree_model_get ((GtkTreeModel *) model, &iter, 
                    URL_LIST_FREE_BUSY_URL_COLUMN, &url, 
                    -1);

        xml = e_pub_uri_to_xml (url);
        if (xml != NULL) {
            url_list = g_slist_append(url_list, xml);
        }
        g_free (url);
        
        valid = gtk_tree_model_iter_next((GtkTreeModel *) model, &iter);
    }
    calendar_config_set_free_busy (url_list);

    g_slist_free (url_list);
}

/* Updates the task list config values from the settings in the dialog */
static void
update_task_list_config (DialogData *dialog_data)
{
    calendar_config_set_tasks_due_today_color (spec_from_picker (dialog_data->tasks_due_today_color));
    calendar_config_set_tasks_overdue_color (spec_from_picker (dialog_data->tasks_overdue_color));

    calendar_config_set_hide_completed_tasks (e_dialog_toggle_get (dialog_data->tasks_hide_completed_checkbutton));
    calendar_config_set_hide_completed_tasks_units (e_dialog_option_menu_get (dialog_data->tasks_hide_completed_optionmenu, hide_completed_units_map));
    calendar_config_set_hide_completed_tasks_value (e_dialog_spin_get_int (dialog_data->tasks_hide_completed_spinbutton));
}

/* Updates the config values based on the settings in the dialog. */
static void
update_config (DialogData *dialog_data)
{
    CalWeekdays working_days;
    gint mask, day, week_start_day, time_divisions, hour, minute;
    icaltimezone *zone;

    /* Timezone. */
    zone = e_timezone_entry_get_timezone (E_TIMEZONE_ENTRY (dialog_data->timezone));
    calendar_config_set_timezone (icaltimezone_get_location (zone));

    /* Working Days. */
    working_days = 0;
    mask = 1 << 0;
    for (day = 0; day < 7; day++) {
        if (e_dialog_toggle_get (dialog_data->working_days[day]))
            working_days |= mask;
        mask <<= 1;
    }
    calendar_config_set_working_days (working_days);

    /* Week Start Day. */
    week_start_day = e_dialog_option_menu_get (dialog_data->week_start_day, week_start_day_map);
    calendar_config_set_week_start_day (week_start_day);

    /* Start of Day. */
    e_date_edit_get_time_of_day (E_DATE_EDIT (dialog_data->start_of_day), &hour, &minute);
    calendar_config_set_day_start_hour (hour);
    calendar_config_set_day_start_minute (minute);

    /* End of Day. */
    e_date_edit_get_time_of_day (E_DATE_EDIT (dialog_data->end_of_day), &hour, &minute);
    calendar_config_set_day_end_hour (hour);
    calendar_config_set_day_end_minute (minute);

    /* 12/24 Hour Format. */
    calendar_config_set_24_hour_format (e_dialog_toggle_get (dialog_data->use_24_hour));

    /* Time Divisions. */
    time_divisions = e_dialog_option_menu_get (dialog_data->time_divisions, time_division_map);
    calendar_config_set_time_divisions (time_divisions);

    /* Show Appointment End Times. */
    calendar_config_set_show_event_end (e_dialog_toggle_get (dialog_data->show_end_times));

    /* Compress Weekend. */
    calendar_config_set_compress_weekend (e_dialog_toggle_get (dialog_data->compress_weekend));

    /* Date Navigator - Show Week Numbers. */
    calendar_config_set_dnav_show_week_no (e_dialog_toggle_get (dialog_data->dnav_show_week_no));

    /* Task list */
    update_task_list_config (dialog_data);
    
    /* Free/Busy */
    update_fb_config (dialog_data);

    /* Other page */

    calendar_config_set_confirm_delete (e_dialog_toggle_get (dialog_data->confirm_delete));

    calendar_config_set_use_default_reminder (e_dialog_toggle_get (dialog_data->default_reminder));

    calendar_config_set_default_reminder_interval (
        e_dialog_spin_get_int (dialog_data->default_reminder_interval));

    calendar_config_set_default_reminder_units (
        e_dialog_option_menu_get (dialog_data->default_reminder_units, default_reminder_units_map));
}