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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * e-table-config.c
 * Copyright 2000, 2001, Ximian, Inc.
 *
 * Authors:
 *   Chris Lahey <clahey@ximian.com>
 *   Miguel de Icaza <miguel@ximian.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License, version 2, as published by the Free Software Foundation.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */
/*
 * FIXME:
 *    Sort Dialog: when text is selected, the toggle button switches state.
 *    Make Clear all work.
 */

#include <config.h>

#include <stdlib.h>
#include <string.h>

#include <gtk/gtk.h>
#include <glade/glade.h>

#include <glib/gi18n.h>
#include "e-util/e-util-private.h"
#include "e-util/e-util.h"
#include "misc/e-unicode.h"

#include "e-table-config.h"
#include "e-table-memory-store.h"
#include "e-table-scrolled.h"
#include "e-table-without.h"

G_DEFINE_TYPE (ETableConfig, e_table_config, G_TYPE_OBJECT)

enum {
    CHANGED,
    LAST_SIGNAL
};

enum {
    PROP_0,
    PROP_STATE,
};

enum {
    COLUMN_ITEM,
    COLUMN_VALUE
};

static guint e_table_config_signals [LAST_SIGNAL] = { 0, };

static void
config_finalize (GObject *object)
{
    ETableConfig *config = E_TABLE_CONFIG (object);

    if (config->state)
        g_object_unref (config->state);
    config->state = NULL;

    if (config->source_state)
        g_object_unref (config->source_state);
    config->source_state = NULL;

    if (config->source_spec)
        g_object_unref (config->source_spec);
    config->source_spec = NULL;

    g_free (config->header);
    config->header = NULL;

    g_slist_free (config->column_names);
    config->column_names = NULL;

    g_free (config->domain);
    config->domain = NULL;

    G_OBJECT_CLASS (e_table_config_parent_class)->finalize (object);
}

static void
e_table_config_changed (ETableConfig *config, ETableState *state)
{
    g_return_if_fail (E_IS_TABLE_CONFIG (config));

    g_signal_emit(G_OBJECT(config), e_table_config_signals [CHANGED], 0, state);
}

static void
config_dialog_changed (ETableConfig *config)
{
    /* enable the apply/ok buttons */
    gtk_dialog_set_response_sensitive (GTK_DIALOG (config->dialog_toplevel),
                       GTK_RESPONSE_APPLY, TRUE);
    gtk_dialog_set_response_sensitive (GTK_DIALOG (config->dialog_toplevel),
                       GTK_RESPONSE_OK, TRUE);
}

static void
config_get_property (GObject *object,
             guint prop_id,
             GValue *value,
             GParamSpec *pspec)
{
    ETableConfig *config = E_TABLE_CONFIG (object);

    switch (prop_id) {
    case PROP_STATE:
        g_value_set_object (value, config->state);
        break;
    default:
        break;
    }
}

static void
e_table_config_class_init (ETableConfigClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    klass->changed        = NULL;

    object_class->finalize = config_finalize;
    object_class->get_property = config_get_property;

    e_table_config_signals [CHANGED] =
        g_signal_new ("changed",
                  G_TYPE_FROM_CLASS (object_class),
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (ETableConfigClass, changed),
                  (GSignalAccumulator) NULL, NULL,
                  g_cclosure_marshal_VOID__VOID,
                  G_TYPE_NONE, 0);

    g_object_class_install_property (object_class, PROP_STATE,
                     g_param_spec_object ("state",
                                  _("State"),
                                  /*_( */"XXX blurb" /*)*/,
                                  E_TABLE_STATE_TYPE,
                                  G_PARAM_READABLE));

    glade_init ();
}

static void
configure_combo_box_add (GtkComboBox *combo_box, const gchar *item,
                         const gchar *value)
{
    GtkTreeRowReference *reference;
    GtkTreeModel *model;
    GtkTreePath *path;
    GHashTable *index;
    GtkTreeIter iter;

    model = gtk_combo_box_get_model (combo_box);
    gtk_list_store_append (GTK_LIST_STORE (model), &iter);

    gtk_list_store_set (
        GTK_LIST_STORE (model), &iter,
        COLUMN_ITEM, item, COLUMN_VALUE, value, -1);

    index = g_object_get_data (G_OBJECT (combo_box), "index");
    g_return_if_fail (index != NULL);

    /* Add an entry to the tree model index. */
    path = gtk_tree_model_get_path (model, &iter);
    reference = gtk_tree_row_reference_new (model, path);
    g_return_if_fail (reference != NULL);
    g_hash_table_insert (index, g_strdup (value), reference);
    gtk_tree_path_free (path);
}

static gchar *
configure_combo_box_get_active (GtkComboBox *combo_box)
{
    GtkTreeIter iter;
    gchar *value = NULL;

    if (gtk_combo_box_get_active_iter (combo_box, &iter))
        gtk_tree_model_get (
            gtk_combo_box_get_model (combo_box), &iter,
            COLUMN_VALUE, &value, -1);

    if (value != NULL && *value == '\0') {
        g_free (value);
        value = NULL;
    }

    return value;
}

static void
configure_combo_box_set_active (GtkComboBox *combo_box, const gchar *value)
{
    GtkTreeRowReference *reference;
    GHashTable *index;

    index = g_object_get_data (G_OBJECT (combo_box), "index");
    g_return_if_fail (index != NULL);

    reference = g_hash_table_lookup (index, value);
    if (reference != NULL) {
        GtkTreeModel *model;
        GtkTreePath *path;
        GtkTreeIter iter;

        model = gtk_tree_row_reference_get_model (reference);
        path = gtk_tree_row_reference_get_path (reference);

        if (path == NULL)
            return;

        if (gtk_tree_model_get_iter (model, &iter, path))
            gtk_combo_box_set_active_iter (combo_box, &iter);

        gtk_tree_path_free (path);
    }
}

static ETableColumnSpecification *
find_column_in_spec (ETableSpecification *spec, int model_col)
{
    ETableColumnSpecification **column;

    for (column = spec->columns; *column; column++){
        if ((*column)->disabled)
            continue;
        if ((*column)->model_col != model_col)
            continue;

        return *column;
    }

    return NULL;
}

static int
find_model_column_by_name (ETableSpecification *spec, const char *s)
{
    ETableColumnSpecification **column;

    for (column = spec->columns; *column; column++){

        if ((*column)->disabled)
            continue;
        if (g_ascii_strcasecmp ((*column)->title, s) == 0)
            return (*column)->model_col;
    }
    return -1;
}

static void
update_sort_and_group_config_dialog (ETableConfig *config, gboolean is_sort)
{
    ETableConfigSortWidgets *widgets;
    int count, i;

    if (is_sort){
        count = e_table_sort_info_sorting_get_count (
            config->temp_state->sort_info);
        widgets = &config->sort [0];
    } else {
        count = e_table_sort_info_grouping_get_count (
            config->temp_state->sort_info);
        widgets = &config->group [0];
    }

    for (i = 0; i < 4; i++){
        gboolean sensitive = (i <= count);
        char *text = "";

        gtk_widget_set_sensitive (widgets [i].frames, sensitive);

        /*
         * Sorting is set, auto select the text
         */
        g_signal_handler_block (
            widgets [i].radio_ascending,
            widgets [i].toggled_id);
        g_signal_handler_block (
            widgets [i].combo,
            widgets [i].changed_id);

        if (i < count){
            GtkToggleButton *a, *d;
            ETableSortColumn col =
                is_sort
                ? e_table_sort_info_sorting_get_nth (
                    config->temp_state->sort_info,
                    i)
                :  e_table_sort_info_grouping_get_nth (
                    config->temp_state->sort_info,
                    i);

            ETableColumnSpecification *column =
                find_column_in_spec (config->source_spec, col.column);

            if (!column){
                /*
                 * This is a bug in the programmer
                 * stuff, but by the time we arrive
                 * here, the user has been given a
                 * warning
                 */
                continue;
            }

            text = column->title;

            /*
             * Update radio buttons
             */
            a = GTK_TOGGLE_BUTTON (
                widgets [i].radio_ascending);
            d = GTK_TOGGLE_BUTTON (
                widgets [i].radio_descending);

            gtk_toggle_button_set_active (col.ascending ? a:d, 1);
        } else {
            GtkToggleButton *t;

            t = GTK_TOGGLE_BUTTON (
                widgets [i].radio_ascending);

            if (is_sort)
                g_return_if_fail (widgets [i].radio_ascending != config->group [i].radio_ascending);
            else
                g_return_if_fail (widgets [i].radio_ascending != config->sort [i].radio_ascending);
            gtk_toggle_button_set_active (t, 1);
        }

        /* Set the text */
        configure_combo_box_set_active (
            GTK_COMBO_BOX (widgets[i].combo), text);

        g_signal_handler_unblock (
            widgets [i].radio_ascending,
            widgets [i].toggled_id);
        g_signal_handler_unblock (
            widgets [i].combo,
            widgets [i].changed_id);
    }
}

static void
config_sort_info_update (ETableConfig *config)
{
    ETableSortInfo *info = config->state->sort_info;
    GString *res;
    int count, i;

    count = e_table_sort_info_sorting_get_count (info);
    res = g_string_new ("");

    for (i = 0; i < count; i++) {
        ETableSortColumn col = e_table_sort_info_sorting_get_nth (info, i);
        ETableColumnSpecification *column;

        column = find_column_in_spec (config->source_spec, col.column);
        if (!column){
            g_warning ("Could not find column model in specification");
            continue;
        }

        g_string_append (res, dgettext (config->domain, (column)->title));
        g_string_append_c (res, ' ');
        g_string_append (
            res,
            col.ascending ?
            _("(Ascending)") : _("(Descending)"));

        if ((i + 1) != count)
            g_string_append (res, ", ");
    }

    if (res->str [0] == 0)
        g_string_append (res, _("Not sorted"));

    gtk_label_set_text (GTK_LABEL(config->sort_label), res->str);

    g_string_free (res, TRUE);
}

static void
config_group_info_update (ETableConfig *config)
{
    ETableSortInfo *info = config->state->sort_info;
    GString *res;
    int count, i;

    if (!e_table_sort_info_get_can_group (info))
        return;

    count = e_table_sort_info_grouping_get_count (info);
    res = g_string_new ("");

    for (i = 0; i < count; i++) {
        ETableSortColumn col = e_table_sort_info_grouping_get_nth (info, i);
        ETableColumnSpecification *column;

        column = find_column_in_spec (config->source_spec, col.column);
        if (!column){
            g_warning ("Could not find model column in specification");
            continue;
        }

        g_string_append (res, dgettext (config->domain, (column)->title));
        g_string_append_c (res, ' ');
        g_string_append (
            res,
            col.ascending ?
            _("(Ascending)") : _("(Descending)"));

        if ((i+1) != count)
            g_string_append (res, ", ");
    }
    if (res->str [0] == 0)
        g_string_append (res, _("No grouping"));

    gtk_label_set_text (GTK_LABEL (config->group_label), res->str);
    g_string_free (res, TRUE);
}

static void
setup_fields (ETableConfig *config)
{
    int i;

    e_table_model_freeze ((ETableModel *)config->available_model);
    e_table_model_freeze ((ETableModel *)config->shown_model);
    e_table_without_show_all (config->available_model);
    e_table_subset_variable_clear (config->shown_model);

    if (config->temp_state) {
        for (i = 0; i < config->temp_state->col_count; i++) {
            gint j, idx;
            for (j = 0, idx = 0; j < config->temp_state->columns[i]; j++)
                if (!config->source_spec->columns[j]->disabled)
                    idx++;

            e_table_subset_variable_add (config->shown_model, idx);
            e_table_without_hide (config->available_model, GINT_TO_POINTER(idx));
        }
    }
    e_table_model_thaw ((ETableModel *)config->available_model);
    e_table_model_thaw ((ETableModel *)config->shown_model);
}

static void
config_fields_info_update (ETableConfig *config)
{
    ETableColumnSpecification **column;
    GString *res = g_string_new ("");
    int i, j;

    for (i = 0; i < config->state->col_count; i++){
        for (j = 0, column = config->source_spec->columns; *column; column++, j++){

            if ((*column)->disabled)
                continue;

            if (config->state->columns [i] != j)
                continue;

            g_string_append (res, dgettext (config->domain, (*column)->title));
            if (i + 1 < config->state->col_count)
                g_string_append (res, ", ");

            break;
        }
    }

    gtk_label_set_text (GTK_LABEL (config->fields_label), res->str);
    g_string_free (res, TRUE);
}

static void
do_sort_and_group_config_dialog (ETableConfig *config, gboolean is_sort)
{
    GtkDialog *dialog;
    int response, running = 1;

    config->temp_state = e_table_state_duplicate (config->state);

    update_sort_and_group_config_dialog (config, is_sort);

    gtk_widget_grab_focus (GTK_WIDGET (
        is_sort
        ? config->sort [0].combo
        : config->group [0].combo));


    if (is_sort)
        dialog = GTK_DIALOG (config->dialog_sort);
    else
        dialog = GTK_DIALOG (config->dialog_group_by);

    gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (config->dialog_toplevel));

    do {
        response = gtk_dialog_run (dialog);
        switch (response){
        case 0: /* clear fields */
            if (is_sort){
                e_table_sort_info_sorting_truncate (
                    config->temp_state->sort_info, 0);
            } else {
                e_table_sort_info_grouping_truncate (
                    config->temp_state->sort_info, 0);
            }
            update_sort_and_group_config_dialog (config, is_sort);
            break;

        case GTK_RESPONSE_OK:
            g_object_unref (config->state);
            config->state = config->temp_state;
            config->temp_state = NULL;
            running = 0;
            config_dialog_changed (config);
            break;

        case GTK_RESPONSE_DELETE_EVENT:
        case GTK_RESPONSE_CANCEL:
            g_object_unref (config->temp_state);
            config->temp_state = NULL;
            running = 0;
            break;
        }

    } while (running);
    gtk_widget_hide (GTK_WIDGET (dialog));

    if (is_sort)
        config_sort_info_update (config);
    else
        config_group_info_update (config);
}

static void
do_fields_config_dialog (ETableConfig *config)
{
    int response, running = 1;

    gtk_widget_ensure_style (config->dialog_show_fields);
    gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (config->dialog_show_fields)->vbox), 0);
    gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (config->dialog_show_fields)->action_area), 12);

    config->temp_state = e_table_state_duplicate (config->state);

    setup_fields (config);

    gtk_window_set_transient_for (GTK_WINDOW (config->dialog_show_fields),
                      GTK_WINDOW (config->dialog_toplevel));

    do {
        response = gtk_dialog_run (GTK_DIALOG(config->dialog_show_fields));
        switch (response){
        case GTK_RESPONSE_OK:
            g_object_unref (config->state);
            config->state = config->temp_state;
            config->temp_state = NULL;
            running = 0;
            config_dialog_changed (config);
            break;

        case GTK_RESPONSE_DELETE_EVENT:
        case GTK_RESPONSE_CANCEL:
            g_object_unref (config->temp_state);
            config->temp_state = NULL;
            running = 0;
            break;
        }

    } while (running);
    gtk_widget_hide (GTK_WIDGET (config->dialog_show_fields));

    config_fields_info_update (config);
}


static ETableMemoryStoreColumnInfo store_columns[] = {
    E_TABLE_MEMORY_STORE_STRING,
    E_TABLE_MEMORY_STORE_INTEGER,
    E_TABLE_MEMORY_STORE_TERMINATOR
};

static ETableModel *global_store;  /* Glade better not be reentrant any time soon. */

static void
create_global_store (ETableConfig *config)
{
    int i;

    global_store = e_table_memory_store_new (store_columns);
    for (i = 0; config->source_spec->columns[i]; i++) {

        char *text;

        if (config->source_spec->columns[i]->disabled)
            continue;

        text = g_strdup (dgettext (config->domain, config->source_spec->columns[i]->title));
        e_table_memory_store_insert_adopt (E_TABLE_MEMORY_STORE (global_store), -1, NULL, text, i);
    }
}

static char *spec = "<ETableSpecification gettext-domain=\"" GETTEXT_PACKAGE "\" no-headers=\"true\" cursor-mode=\"line\" "
" draw-grid=\"false\" draw-focus=\"true\" selection-mode=\"browse\">"
"<ETableColumn model_col= \"0\" _title=\"Name\" minimum_width=\"30\" resizable=\"true\" cell=\"string\" compare=\"string\"/>"
"<ETableState> <column source=\"0\"/>"
"<grouping/>"
"</ETableState>"
"</ETableSpecification>";

GtkWidget *e_table_proxy_etable_shown_new (void);

GtkWidget *
e_table_proxy_etable_shown_new (void)
{
    ETableModel *model = NULL;
    GtkWidget *widget;
    ETableScrolled *ets;

    model = e_table_subset_variable_new (global_store);

    widget = e_table_scrolled_new (model, NULL, spec, NULL);
    ets = E_TABLE_SCROLLED (widget);
    atk_object_set_name (gtk_widget_get_accessible ((GtkWidget *)ets->table), _("Show Fields"));

    return widget;
}

GtkWidget *e_table_proxy_etable_available_new (void);

GtkWidget *
e_table_proxy_etable_available_new (void)
{
    ETableModel *model;
    GtkWidget *widget;
    ETableScrolled *ets;

    model = e_table_without_new (global_store,
                     NULL, NULL, NULL, NULL, NULL, NULL, NULL);

    e_table_without_show_all (E_TABLE_WITHOUT (model));

    widget = e_table_scrolled_new (model, NULL, spec, NULL);
    ets = E_TABLE_SCROLLED (widget);
    atk_object_set_name (gtk_widget_get_accessible ((GtkWidget *)ets->table), _("Available Fields"));

    return widget;
}

static void
config_button_fields (GtkWidget *widget, ETableConfig *config)
{
    do_fields_config_dialog (config);
}

static void
config_button_sort (GtkWidget *widget, ETableConfig *config)
{
    do_sort_and_group_config_dialog (config, TRUE);
}

static void
config_button_group (GtkWidget *widget, ETableConfig *config)
{
    do_sort_and_group_config_dialog (config, FALSE);
}

static void
dialog_destroyed (gpointer data, GObject *where_object_was)
{
    ETableConfig *config = data;
    g_object_unref (config);
}

static void
dialog_response (GtkWidget *dialog, int response_id, ETableConfig *config)
{
    if (response_id == GTK_RESPONSE_APPLY
        || response_id == GTK_RESPONSE_OK) {
        e_table_config_changed (config, config->state);
    }

    if (response_id == GTK_RESPONSE_CANCEL
        || response_id == GTK_RESPONSE_OK) {
        gtk_widget_destroy (dialog);
    }
}

/*
 * Invoked by the Glade auto-connect code
 */
GtkWidget *e_table_proxy_gtk_combo_text_new (void);
GtkWidget *
e_table_proxy_gtk_combo_text_new (void)
{
    GtkCellRenderer *renderer;
    GtkListStore *store;
    GtkWidget *combo_box;
    GHashTable *index;

    store = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_STRING);
    combo_box = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));

    renderer = gtk_cell_renderer_text_new ();
    gtk_cell_layout_pack_start (
        GTK_CELL_LAYOUT (combo_box), renderer, FALSE);
    gtk_cell_layout_add_attribute (
        GTK_CELL_LAYOUT (combo_box), renderer, "text", COLUMN_ITEM);

    /* Embed a reverse-lookup index into the widget. */
    index = g_hash_table_new_full (
        g_str_hash, g_str_equal,
        (GDestroyNotify) g_free,
        (GDestroyNotify) gtk_tree_row_reference_free);
    g_object_set_data_full (
        G_OBJECT (combo_box), "index", index,
        (GDestroyNotify) g_hash_table_destroy);

    return combo_box;
}

#if 0
static GtkWidget *
configure_dialog (GladeXML *gui, const char *widget_name, ETableConfig *config)
{
    GtkWidget *w;

    w = glade_xml_get_widget (gui, widget_name);

    return w;
}
#endif

static void
connect_button (ETableConfig *config, GladeXML *gui, const char *widget_name, GCallback cback)
{
    GtkWidget *button = glade_xml_get_widget (gui, widget_name);

    if (button) {
        g_signal_connect (G_OBJECT (button), "clicked",
                  cback, config);
    }
}

static gint
get_source_model_col_index (ETableConfig *config, gint idx)
{
    gint visible_index;
    ETableModel *src_model = E_TABLE_SUBSET (config->available_model)->source;

        visible_index = e_table_subset_view_to_model_row (E_TABLE_SUBSET (config->available_model), idx);

    return GPOINTER_TO_INT (e_table_model_value_at (src_model, 1, visible_index));
}

static void
sort_combo_changed (GtkComboBox *combo_box, ETableConfigSortWidgets *sort)
{
    ETableConfig *config = sort->e_table_config;
    ETableSortInfo *sort_info = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->sort[0];
    int idx = sort - base;
    gchar *s;

    s = configure_combo_box_get_active (combo_box);

    if (s != NULL) {
        ETableSortColumn c;
        int col;

        col = find_model_column_by_name (config->source_spec, s);
        if (col == -1){
            g_warning ("sort: This should not happen (%s)", s);
            g_free (s);
            return;
        }

        c.ascending = GTK_TOGGLE_BUTTON (
            config->sort [idx].radio_ascending)->active;
        c.column = col;
        e_table_sort_info_sorting_set_nth (sort_info, idx, c);

        update_sort_and_group_config_dialog (config, TRUE);
    }  else {
        e_table_sort_info_sorting_truncate (sort_info, idx);
        update_sort_and_group_config_dialog (config, TRUE);
    }

    g_free (s);
}

static void
sort_ascending_toggled (GtkToggleButton *t, ETableConfigSortWidgets *sort)
{
    ETableConfig *config = sort->e_table_config;
    ETableSortInfo *si = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->sort[0];
    int idx = sort - base;
    ETableSortColumn c;

    c = e_table_sort_info_sorting_get_nth (si, idx);
    c.ascending = t->active;
    e_table_sort_info_sorting_set_nth (si, idx, c);
}

static void
configure_sort_dialog (ETableConfig *config, GladeXML *gui)
{
    GSList *l;
    int i;

    for (i = 0; i < 4; i++){
        char buffer [80];

        snprintf (buffer, sizeof (buffer), "sort-combo-%d", i + 1);
        config->sort [i].combo = glade_xml_get_widget (gui, buffer);
        gtk_widget_show (GTK_WIDGET (config->sort [i].combo));
        configure_combo_box_add (
            GTK_COMBO_BOX (config->sort[i].combo), "", "");

        snprintf (buffer, sizeof (buffer), "frame-sort-%d", i + 1);
        config->sort [i].frames =
            glade_xml_get_widget (gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-ascending-sort-%d", i+1);
        config->sort [i].radio_ascending = glade_xml_get_widget (
            gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-descending-sort-%d", i+1);
        config->sort [i].radio_descending = glade_xml_get_widget (
            gui, buffer);

        config->sort [i].e_table_config = config;
    }

    for (l = config->column_names; l; l = l->next){
        char *label = l->data;

        for (i = 0; i < 4; i++){
            configure_combo_box_add (
                GTK_COMBO_BOX (config->sort[i].combo),
                dgettext (config->domain, label), label);
        }
    }

    /*
     * After we have runtime modified things, signal connect
     */
    for (i = 0; i < 4; i++){
        config->sort [i].changed_id = g_signal_connect (
            config->sort [i].combo,
            "changed", G_CALLBACK (sort_combo_changed),
            &config->sort [i]);

        config->sort [i].toggled_id = g_signal_connect (
            config->sort [i].radio_ascending,
            "toggled", G_CALLBACK (sort_ascending_toggled),
            &config->sort [i]);
    }
}

static void
group_combo_changed (GtkComboBox *combo_box, ETableConfigSortWidgets *group)
{
    ETableConfig *config = group->e_table_config;
    ETableSortInfo *sort_info = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->group[0];
    int idx = group - base;
    gchar *s;

    s = configure_combo_box_get_active (combo_box);

    if (s != NULL) {
        ETableSortColumn c;
        int col;

        col = find_model_column_by_name (config->source_spec, s);
        if (col == -1){
            g_warning ("grouping: this should not happen, %s", s);
            g_free (s);
            return;
        }

        c.ascending = GTK_TOGGLE_BUTTON (
            config->group [idx].radio_ascending)->active;
        c.column = col;
        e_table_sort_info_grouping_set_nth (sort_info, idx, c);

        update_sort_and_group_config_dialog (config, FALSE);
    }  else {
        e_table_sort_info_grouping_truncate (sort_info, idx);
        update_sort_and_group_config_dialog (config, FALSE);
    }

    g_free (s);
}

static void
group_ascending_toggled (GtkToggleButton *t, ETableConfigSortWidgets *group)
{
    ETableConfig *config = group->e_table_config;
    ETableSortInfo *si = config->temp_state->sort_info;
    ETableConfigSortWidgets *base = &config->group[0];
    int idx = group - base;
    ETableSortColumn c;

    c = e_table_sort_info_grouping_get_nth (si, idx);
    c.ascending = t->active;
    e_table_sort_info_grouping_set_nth (si, idx, c);
}

static void
configure_group_dialog (ETableConfig *config, GladeXML *gui)
{
    GSList *l;
    int i;

    for (i = 0; i < 4; i++){
        char buffer [80];

        snprintf (buffer, sizeof (buffer), "group-combo-%d", i + 1);
        config->group [i].combo = glade_xml_get_widget (gui, buffer);
        gtk_widget_show (GTK_WIDGET (config->group [i].combo));

        configure_combo_box_add (
            GTK_COMBO_BOX (config->group[i].combo), "", "");

        snprintf (buffer, sizeof (buffer), "frame-group-%d", i + 1);
        config->group [i].frames =
            glade_xml_get_widget (gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-ascending-group-%d", i+1);
        config->group [i].radio_ascending = glade_xml_get_widget (
            gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "radiobutton-descending-group-%d", i+1);
        config->group [i].radio_descending = glade_xml_get_widget (
            gui, buffer);

        snprintf (
            buffer, sizeof (buffer),
            "checkbutton-group-%d", i+1);
        config->group [i].view_check = glade_xml_get_widget (
            gui, buffer);

        config->group [i].e_table_config = config;
    }


    for (l = config->column_names; l; l = l->next){
        char *label = l->data;

        for (i = 0; i < 4; i++){
            configure_combo_box_add (
                GTK_COMBO_BOX (config->group[i].combo),
                dgettext (config->domain, label), label);
        }
    }

    /*
     * After we have runtime modified things, signal connect
     */
    for (i = 0; i < 4; i++){
        config->group [i].changed_id = g_signal_connect (
            config->group [i].combo,
            "changed", G_CALLBACK (group_combo_changed),
            &config->group [i]);

        config->group [i].toggled_id = g_signal_connect (
            config->group [i].radio_ascending,
            "toggled", G_CALLBACK (group_ascending_toggled),
            &config->group [i]);
    }
}

static void
add_column (int model_row, gpointer closure)
{
    GList **columns = closure;
    *columns = g_list_prepend (*columns, GINT_TO_POINTER (model_row));
}

static void
config_button_add (GtkWidget *widget, ETableConfig *config)
{
    GList *columns = NULL;
    GList *column;
    int count;
    int i;

    e_table_selected_row_foreach (config->available, add_column, &columns);
    columns = g_list_reverse (columns);

    count = g_list_length (columns);

    config->temp_state->columns = g_renew (int, config->temp_state->columns, config->temp_state->col_count + count);
    config->temp_state->expansions = g_renew (double, config->temp_state->expansions, config->temp_state->col_count + count);
    i = config->temp_state->col_count;
    for (column = columns; column; column = column->next) {
        config->temp_state->columns[i] = get_source_model_col_index (config, GPOINTER_TO_INT (column->data));
        config->temp_state->expansions[i] = config->source_spec->columns[config->temp_state->columns[i]]->expansion;
        i++;
    }
    config->temp_state->col_count += count;

    g_list_free (columns);

    setup_fields (config);
}

static void
config_button_remove (GtkWidget *widget, ETableConfig *config)
{
    GList *columns = NULL;
    GList *column;

    e_table_selected_row_foreach (config->shown, add_column, &columns);

    for (column = columns; column; column = column->next) {
        int row = GPOINTER_TO_INT (column->data);

        memmove (config->temp_state->columns + row, config->temp_state->columns + row + 1, sizeof (int) * (config->temp_state->col_count - row - 1));
        memmove (config->temp_state->expansions + row, config->temp_state->expansions + row + 1, sizeof (double) * (config->temp_state->col_count - row - 1));
        config->temp_state->col_count --;
    }
    config->temp_state->columns = g_renew (int, config->temp_state->columns, config->temp_state->col_count);
    config->temp_state->expansions = g_renew (double, config->temp_state->expansions, config->temp_state->col_count);

    g_list_free (columns);

    setup_fields (config);
}

static void
config_button_up (GtkWidget *widget, ETableConfig *config)
{
    GList *columns = NULL;
    GList *column;
    int *new_shown;
    double *new_expansions;
    int next_col;
    double next_expansion;
    int i;

    e_table_selected_row_foreach (config->shown, add_column, &columns);

    /* if no columns left, just return */
    if (columns == NULL)
        return;

    columns = g_list_reverse (columns);

    new_shown = g_new (int, config->temp_state->col_count);
    new_expansions = g_new (double, config->temp_state->col_count);

    column = columns;

    next_col = config->temp_state->columns[0];
    next_expansion = config->temp_state->expansions[0];

    for (i = 1; i < config->temp_state->col_count; i++) {
        if (column && (GPOINTER_TO_INT (column->data) == i)) {
            new_expansions[i - 1] = config->temp_state->expansions[i];
            new_shown[i - 1] = config->temp_state->columns[i];
            column = column->next;
        } else {
            new_shown[i - 1] = next_col;
            next_col = config->temp_state->columns[i];

            new_expansions[i - 1] = next_expansion;
            next_expansion = config->temp_state->expansions[i];
        }
    }

    new_shown[i - 1] = next_col;
    new_expansions[i - 1] = next_expansion;

    g_free (config->temp_state->columns);
    g_free (config->temp_state->expansions);

    config->temp_state->columns = new_shown;
    config->temp_state->expansions = new_expansions;

    g_list_free (columns);

    setup_fields (config);
}

static void
config_button_down (GtkWidget *widget, ETableConfig *config)
{
    GList *columns = NULL;
    GList *column;
    int *new_shown;
    double *new_expansions;
    int next_col;
    double next_expansion;
    int i;

    e_table_selected_row_foreach (config->shown, add_column, &columns);

    /* if no columns left, just return */
    if (columns == NULL)
        return;


    new_shown = g_new (int, config->temp_state->col_count);
    new_expansions = g_new (double, config->temp_state->col_count);

    column = columns;

    next_col = config->temp_state->columns[config->temp_state->col_count - 1];
    next_expansion = config->temp_state->expansions[config->temp_state->col_count - 1];

    for (i = config->temp_state->col_count - 1; i > 0; i--) {
        if (column && (GPOINTER_TO_INT (column->data) == i - 1)) {
            new_expansions[i] = config->temp_state->expansions[i - 1];
            new_shown[i] = config->temp_state->columns[i - 1];
            column = column->next;
        } else {
            new_shown[i] = next_col;
            next_col = config->temp_state->columns[i - 1];

            new_expansions[i] = next_expansion;
            next_expansion = config->temp_state->expansions[i - 1];
        }
    }

    new_shown[0] = next_col;
    new_expansions[0] = next_expansion;

    g_free (config->temp_state->columns);
    g_free (config->temp_state->expansions);

    config->temp_state->columns = new_shown;
    config->temp_state->expansions = new_expansions;

    g_list_free (columns);

    setup_fields (config);
}

static void
configure_fields_dialog (ETableConfig *config, GladeXML *gui)
{
    GtkWidget *scrolled;

    scrolled = glade_xml_get_widget (gui, "custom-available");
    config->available = e_table_scrolled_get_table (E_TABLE_SCROLLED (scrolled));
    g_object_get (config->available,
              "model", &config->available_model,
              NULL);
    gtk_widget_show_all (scrolled);

    scrolled = glade_xml_get_widget (gui, "custom-shown");
    config->shown = e_table_scrolled_get_table (E_TABLE_SCROLLED (scrolled));
    g_object_get (config->shown,
              "model", &config->shown_model,
              NULL);
    gtk_widget_show_all (scrolled);

    connect_button (config, gui, "button-add",    G_CALLBACK (config_button_add));
    connect_button (config, gui, "button-remove", G_CALLBACK (config_button_remove));
    connect_button (config, gui, "button-up",     G_CALLBACK (config_button_up));
    connect_button (config, gui, "button-down",   G_CALLBACK (config_button_down));

    setup_fields (config);
}

static void
setup_gui (ETableConfig *config)
{
    GladeXML *gui;
    gboolean can_group;
    gchar *filename;

    create_global_store (config);

    can_group = e_table_sort_info_get_can_group (config->state->sort_info);
    filename = g_build_filename (EVOLUTION_GLADEDIR,
                      "e-table-config.glade",
                      NULL);
    gui = glade_xml_new (filename, NULL, GETTEXT_PACKAGE);
    g_free (filename);

    g_object_unref (global_store);

    config->dialog_toplevel = glade_xml_get_widget (
        gui, "e-table-config");

    if (config->header)
        gtk_window_set_title (GTK_WINDOW (config->dialog_toplevel), config->header);

    config->dialog_show_fields = glade_xml_get_widget (
        gui, "dialog-show-fields");
    config->dialog_group_by =  glade_xml_get_widget (
        gui, "dialog-group-by");
    config->dialog_sort = glade_xml_get_widget (
        gui, "dialog-sort");

    config->sort_label = glade_xml_get_widget (
        gui, "label-sort");
    config->group_label = glade_xml_get_widget (
        gui, "label-group");
    config->fields_label = glade_xml_get_widget (
        gui, "label-fields");

    connect_button (config, gui, "button-sort", G_CALLBACK (config_button_sort));
    connect_button (config, gui, "button-group", G_CALLBACK (config_button_group));
    connect_button (config, gui, "button-fields", G_CALLBACK (config_button_fields));

    if (!can_group) {
        GtkWidget *w;

        w = glade_xml_get_widget (gui, "button-group");
        if (w)
            gtk_widget_hide (w);

        w = glade_xml_get_widget (gui, "label3");
        if (w)
            gtk_widget_hide (w);

        w = config->group_label;
        if (w)
            gtk_widget_hide (w);
    }

    configure_sort_dialog (config, gui);
    configure_group_dialog (config, gui);
    configure_fields_dialog (config, gui);

    g_object_weak_ref (G_OBJECT (config->dialog_toplevel),
               dialog_destroyed, config);

    g_signal_connect (config->dialog_toplevel, "response",
              G_CALLBACK (dialog_response), config);

    g_object_unref (gui);
}

static void
e_table_config_init (ETableConfig *config)
{
    config->domain = NULL;
}

ETableConfig *
e_table_config_construct (ETableConfig        *config,
              const char          *header,
              ETableSpecification *spec,
              ETableState         *state,
              GtkWindow           *parent_window)
{
    ETableColumnSpecification **column;

    g_return_val_if_fail (config != NULL, NULL);
    g_return_val_if_fail (header != NULL, NULL);
    g_return_val_if_fail (spec != NULL, NULL);
    g_return_val_if_fail (state != NULL, NULL);

    config->source_spec = spec;
    config->source_state = state;
    config->header = g_strdup (header);

    g_object_ref (config->source_spec);
    g_object_ref (config->source_state);

    config->state = e_table_state_duplicate (state);

    config->domain = g_strdup (spec->domain);

    for (column = config->source_spec->columns; *column; column++){
        char *label = (*column)->title;

        if ((*column)->disabled)
            continue;

        config->column_names = g_slist_append (
            config->column_names, label);
    }

    setup_gui (config);

    gtk_window_set_transient_for (GTK_WINDOW (config->dialog_toplevel),
                      parent_window);

    config_sort_info_update   (config);
    config_group_info_update  (config);
    config_fields_info_update (config);

    return E_TABLE_CONFIG (config);
}

/**
 * e_table_config_new:
 * @header: The title of the dialog for the ETableConfig.
 * @spec: The specification for the columns to allow.
 * @state: The current state of the configuration.
 *
 * Creates a new ETable config object.
 *
 * Returns: The config object.
 */
ETableConfig *
e_table_config_new (const char          *header,
            ETableSpecification *spec,
            ETableState         *state,
            GtkWindow           *parent_window)
{
    ETableConfig *config = g_object_new (E_TABLE_CONFIG_TYPE, NULL);

    if (e_table_config_construct (config, header, spec, state, parent_window) == NULL){
        g_object_unref (config);
        return NULL;
    }

    gtk_widget_ensure_style (config->dialog_toplevel);
    gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (config->dialog_toplevel)->vbox), 0);
    gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG (config->dialog_toplevel)->action_area), 12);

    gtk_dialog_set_response_sensitive (GTK_DIALOG (config->dialog_toplevel),
                       GTK_RESPONSE_APPLY, FALSE);
    gtk_widget_show (config->dialog_toplevel);

    return E_TABLE_CONFIG (config);
}

/**
 * e_table_config_raise:
 * @config: The ETableConfig object.
 *
 * Raises the dialog associated with this ETableConfig object.
 */
void
e_table_config_raise (ETableConfig *config)
{
    gdk_window_raise (GTK_WIDGET (config->dialog_toplevel)->window);
}