wireshark/ui/gtk/extcap_gtk.c

/* extcap_gtk.c
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "config.h"

#include <string.h>

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

#include <ui/gtk/gui_utils.h>
#include <wsutil/filesystem.h>

#include "extcap_gtk.h"
#include "ui/gtk/old-gtk-compat.h"

#include "log.h"

static gboolean extcap_gtk_count_tree_elements(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
    int *ptr_count = (int*)data;
    gboolean multi_enabled;
    (void)path;

    g_assert(ptr_count != NULL);

    gtk_tree_model_get(model, iter,
            EXTCAP_GTK_MULTI_COL_CHECK, &multi_enabled, -1);

    if (multi_enabled)
    {
        ++(*ptr_count);
    }

    return FALSE; /* Continue iteration. */
}

typedef struct _extcap_gtk_multi_fill_cb_data
{
    gchar **list;
    int num;
    int max;
} extcap_gtk_multi_fill_cb_data;

static gboolean extcap_gtk_fill_multi_list(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
    extcap_gtk_multi_fill_cb_data *ptr_data = (extcap_gtk_multi_fill_cb_data*)data;
    gboolean multi_enabled;
    extcap_value *value;
    (void)path;

    g_assert(ptr_data != NULL);

    gtk_tree_model_get(model, iter,
            EXTCAP_GTK_MULTI_COL_CHECK, &multi_enabled,
            EXTCAP_GTK_MULTI_COL_VALUE, &value, -1);

    if (multi_enabled)
    {
        g_assert(ptr_data->num < ptr_data->max);

        if (ptr_data->num < ptr_data->max)
        {
            ptr_data->list[ptr_data->num] = g_strdup(value->call);
            ptr_data->num++;
        }
    }

    return FALSE; /* Continue iteration. */
}

typedef struct _extcap_gtk_multi_find_cb_data
{
    gchar *parent;
    GtkTreeIter *parent_iter;
} extcap_gtk_multi_find_cb_data;

static gboolean extcap_gtk_find_parent_in_multi_list(GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, gpointer data)
{
    extcap_gtk_multi_find_cb_data *ptr_data = (extcap_gtk_multi_find_cb_data*)data;
    extcap_value *value;
    (void)path;

    g_assert(ptr_data != NULL);

    gtk_tree_model_get(model, iter,
            EXTCAP_GTK_MULTI_COL_VALUE, &value, -1);

    if (0 == g_strcmp0(ptr_data->parent, value->call))
    {
        ptr_data->parent_iter = gtk_tree_iter_copy(iter);
        return TRUE; /* Stop iteration. */
    }

    return FALSE; /* Continue iteration. */
}

GHashTable *extcap_gtk_get_state(GtkWidget *widget) {
    GSList *widget_list, *widget_iter;
    GSList *radio_list = NULL, *radio_iter = NULL;

    GtkWidget *list_widget, *radio_widget, *tree_widget, *entry_widget;

    extcap_arg *arg = NULL;
    extcap_value *value = NULL;
    extcap_complex *parsed_complex = NULL;

    GtkTreeSelection *treeselection;
    GtkTreeModel *treemodel;
    GtkTreeIter treeiter;

    GHashTable *ret_hash;

    gchar *call_string = NULL;

    extcap_gtk_multi_fill_cb_data multi_data = { NULL, 0, 0 };

    int multi_num = 0;

    guint year = 0;
    guint month = 0;
    guint day = 0;
    guint64 unix_ts = 0;

    widget_list = (GSList *) g_object_get_data(G_OBJECT(widget),
    EXTCAP_GTK_DATA_KEY_WIDGETLIST);

    if (widget_list == NULL)
        return NULL ;

    /* String hash */
    ret_hash = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);

    for (widget_iter = widget_list; widget_iter; widget_iter =
            widget_iter->next) {
        list_widget = (GtkWidget *) widget_iter->data;

        if ((arg = (extcap_arg *) g_object_get_data(G_OBJECT(list_widget),
        EXTCAP_GTK_DATA_KEY_ARGPTR)) == NULL) {
            continue;
        }

        switch (arg->arg_type) {
        case EXTCAP_ARG_INTEGER:
        case EXTCAP_ARG_UNSIGNED:
        case EXTCAP_ARG_LONG:
        case EXTCAP_ARG_DOUBLE:
        case EXTCAP_ARG_STRING:
        case EXTCAP_ARG_PASSWORD:
            parsed_complex = extcap_parse_complex(arg->arg_type,
                    gtk_entry_get_text(GTK_ENTRY(list_widget)));
            if (parsed_complex == NULL) {
                continue;
            }
            break;
        case EXTCAP_ARG_BOOLEAN:
        case EXTCAP_ARG_BOOLFLAG:
            parsed_complex = extcap_parse_complex(arg->arg_type,
                    gtk_toggle_button_get_active(
                            GTK_TOGGLE_BUTTON(list_widget)) ? "true" : "false");
            break;
        case EXTCAP_ARG_FILESELECT:
            if ((entry_widget =
                    (GtkWidget *) g_object_get_data(G_OBJECT(list_widget),
                            EXTCAP_GTK_DATA_KEY_FILENAME)) == NULL) {
                continue;
            }
            parsed_complex = extcap_parse_complex(arg->arg_type,
                    gtk_entry_get_text(GTK_ENTRY(entry_widget)));
            if (parsed_complex == NULL) {
                continue;
            }
            break;
        case EXTCAP_ARG_TIMESTAMP: {
                struct tm t;
                gtk_calendar_get_date((GtkCalendar*)list_widget, &year, &month, &day);
                t.tm_year = year;
                t.tm_mon = month;
                t.tm_mday = day;
                t.tm_hour = 0;
                t.tm_min = 0;
                t.tm_sec = 0;
                unix_ts = mktime(&t);
                call_string = g_strdup_printf("%" G_GINT64_MODIFIER "u", unix_ts);
            }
            break;
        case EXTCAP_ARG_RADIO:
            if ((radio_widget = (GtkWidget *) g_object_get_data(
                    G_OBJECT(list_widget),
                    EXTCAP_GTK_DATA_KEY_FIRSTRADIO)) == NULL) {
                continue;
            }

            if ((radio_list = gtk_radio_button_get_group(
                    GTK_RADIO_BUTTON(radio_widget))) == NULL) {
                continue;
            }

            for (radio_iter = radio_list; radio_iter;
                    radio_iter = radio_iter->next) {
                GtkWidget *cur_radio = (GtkWidget *) radio_iter->data;

                if (gtk_toggle_button_get_active(
                        GTK_TOGGLE_BUTTON(cur_radio))) {
                    if ((value = (extcap_value *) g_object_get_data(
                            G_OBJECT(cur_radio),
                            EXTCAP_GTK_DATA_KEY_VALPTR)) == NULL) {
                        continue;
                    }

                    if (value->is_default)
                        continue;

                    call_string = g_strdup(value->call);
                    break;
                }
            }

            break;
        case EXTCAP_ARG_SELECTOR:
            if ((tree_widget = (GtkWidget *) g_object_get_data(
                    G_OBJECT(list_widget),
                    EXTCAP_GTK_DATA_KEY_TREEVIEW)) == NULL) {
                continue;
            }

            treeselection = gtk_tree_view_get_selection(
                    GTK_TREE_VIEW(tree_widget));
            treemodel = gtk_tree_view_get_model(GTK_TREE_VIEW(tree_widget));
            if (gtk_tree_selection_get_selected(treeselection, &treemodel,
                    &treeiter)) {
                gtk_tree_model_get(treemodel, &treeiter, EXTCAP_GTK_COL_VALUE,
                        &value, -1);

                if (value->is_default)
                    continue;

                call_string = g_strdup(value->call);
            }

            break;
        case EXTCAP_ARG_MULTICHECK:
            if ((tree_widget = (GtkWidget *) g_object_get_data(
                    G_OBJECT(list_widget),
                    EXTCAP_GTK_DATA_KEY_TREEVIEW)) == NULL) {
                continue;
            }

            gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_widget));
            treemodel = gtk_tree_view_get_model(GTK_TREE_VIEW(tree_widget));

            multi_num = 0;

            /* Count the # of items enabled */
            gtk_tree_model_foreach(treemodel, extcap_gtk_count_tree_elements,
                    &multi_num);

            if (multi_num > 0)
            {
                multi_data.list = g_new(gchar *, multi_num + 1);
                multi_data.num = 0;
                multi_data.max = multi_num;

                multi_num = 0;

                /* Get values list of items enabled */
                gtk_tree_model_foreach(treemodel, extcap_gtk_fill_multi_list,
                        &multi_data);

                multi_data.list[multi_data.max] = NULL;

                call_string = g_strjoinv(",", multi_data.list);

                g_strfreev(multi_data.list);
            }
            else
            {
                /* There are no enabled items. Skip this argument from command line. */
                continue;
            }

            break;
        default:
            break;
        }

        if (parsed_complex == NULL && call_string == NULL)
            continue;


        /* Flags are set as is, and have not true/false switch */
        if (arg->arg_type == EXTCAP_ARG_BOOLFLAG)
        {
            if (extcap_complex_get_bool(parsed_complex) == TRUE)
            {
                /* Include boolflag call in list.
                 * Only arg->call should appear in commandline arguments.
                 * Setting call_string to NULL here makes it perform as desired.
                 */
                call_string = NULL;
            }
            else
            {
                 /* Omit boolflag call from list. */
                 g_free(parsed_complex);
                 parsed_complex = NULL;
                 continue;
            }
        }
        else
        {
            /* Comparing if the user has changed the value at all, and ignoring it if so.
             * This does not apply to EXTCAP_ARG_BOOLFLAG.
             */
            if (extcap_compare_is_default(arg, parsed_complex))
                continue;

            if (parsed_complex != NULL && call_string == NULL)
                call_string = extcap_get_complex_as_string(parsed_complex);
        }

        g_hash_table_insert(ret_hash, g_strdup(arg->call),
                g_strdup(call_string));

        g_free(call_string);
        call_string = NULL;

        g_free(parsed_complex);
        parsed_complex = NULL;
    }

    return ret_hash;
}

static void extcap_gtk_treeview_vscroll_map_handler(GtkTreeView *treeView,
        gpointer data) {
    GtkWidget *padBox = (GtkWidget*) data;
    gint x, y;

    g_assert(GTK_IS_BOX(padBox));

    /* Set the padding above the scrollbar to the height of the tree header window */
    gtk_tree_view_convert_bin_window_to_widget_coords(GTK_TREE_VIEW(treeView),
            0, 0, &x, &y);
    gtk_widget_set_size_request(padBox, -1, y);
}

static GtkWidget *extcap_gtk_wrap_scroll_treeview(GtkWidget *view) {
    GtkWidget *vscroll, *padbox, *hbox, *vbox;
    GtkAdjustment *padj;

#if GTK_CHECK_VERSION(3, 0, 0)
    padj = gtk_scrollable_get_vadjustment(GTK_SCROLLABLE(view));
#if GTK_CHECK_VERSION(3, 2, 0)
    vscroll = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, padj);
#else
    vscroll = gtk_vscrollbar_new(padj);
#endif
#else
    padj = gtk_tree_view_get_vadjustment(GTK_TREE_VIEW(view));
    vscroll = gtk_vscrollbar_new(padj);
#endif

    hbox = ws_gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0, FALSE);

    /* First insert the tree view */
    gtk_box_pack_start(GTK_BOX(hbox), view, TRUE, TRUE, 0);
    gtk_widget_show(view);

    /* Pack to the right a vbox containing a box for padding at top and scrollbar */
    vbox = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 0, FALSE);
    gtk_box_pack_start(GTK_BOX(hbox), vbox, FALSE, FALSE, 0);
    gtk_widget_show(vbox);

    padbox = ws_gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0, FALSE);
    gtk_box_pack_start(GTK_BOX(vbox), padbox, FALSE, FALSE, 0);
    gtk_widget_show(padbox);

    gtk_box_pack_start(GTK_BOX(vbox), vscroll, TRUE, TRUE, 0);
    gtk_widget_show(vscroll);

    g_object_set_data(G_OBJECT(hbox), EXTCAP_GTK_DATA_KEY_TREEVIEW, view);

    g_signal_connect(view, "map",
            G_CALLBACK(extcap_gtk_treeview_vscroll_map_handler), padbox);

    return hbox;
}

GtkWidget *extcap_create_gtk_listwidget(extcap_arg *argument,
        GHashTable *prev_map) {
    GtkCellRenderer *renderer;
    GtkTreeModel *model;
    GtkWidget *view, *retview;
    GtkListStore *store;
    GtkTreeIter iter;
    GtkTreeSelection *selection;
    extcap_value *v = NULL;
    GList * walker = NULL;
    gchar *prev_item = NULL;

    if (g_list_length(argument->values) == 0)
        return NULL ;

    view = gtk_tree_view_new();

    selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(view));

    store = gtk_list_store_new(EXTCAP_GTK_NUM_COLS, G_TYPE_STRING,
            G_TYPE_POINTER);

    model = GTK_TREE_MODEL(store);
    gtk_tree_view_set_model(GTK_TREE_VIEW(view), model);
    gtk_tree_selection_set_mode(selection, GTK_SELECTION_SINGLE);

    if (prev_map != NULL)
        prev_item = (gchar *) g_hash_table_lookup(prev_map, argument->call);

    for (walker = g_list_first(argument->values); walker != NULL ; walker =
            walker->next) {
        v = (extcap_value *) walker->data;
        if (v->display == NULL)
            break;

        gtk_list_store_append(store, &iter);
        gtk_list_store_set(store, &iter, EXTCAP_GTK_COL_DISPLAY, v->display,
                EXTCAP_GTK_COL_VALUE, v, -1);

        if (prev_item != NULL) {
            if (g_ascii_strcasecmp(prev_item, v->call) == 0) {
                gtk_tree_selection_select_iter(selection, &iter);
            }
        } else if (v->is_default) {
            gtk_tree_selection_select_iter(selection, &iter);
        }
    }

    renderer = gtk_cell_renderer_text_new();
    gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), -1, "Name",
            renderer, "text", EXTCAP_GTK_COL_DISPLAY, NULL);

    gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);

    retview = extcap_gtk_wrap_scroll_treeview(view);

    if (gtk_tree_model_iter_n_children(model, NULL) > 3)
        gtk_widget_set_size_request(retview, 0, 100);

    /* Tree view has own reference */
    g_object_unref(model);

    return retview;
}

GtkWidget *extcap_create_gtk_radiowidget(extcap_arg *argument,
        GHashTable *prev_map) {
    GtkWidget *radiobox = NULL, *last_radio = NULL;
    extcap_value *v = NULL;
    GList * walker = NULL;
    gchar *prev_item = NULL;

    if (g_list_length(argument->values) == 0)
        return NULL ;

    if (prev_map != NULL)
        prev_item = (gchar *) g_hash_table_lookup(prev_map, argument->call);

    radiobox = ws_gtk_box_new(GTK_ORIENTATION_VERTICAL, 1, FALSE);

    for (walker = g_list_first(argument->values); walker != NULL ; walker =
            walker->next) {
        v = (extcap_value *) walker->data;

        if (last_radio == NULL) {
            last_radio = gtk_radio_button_new_with_label(NULL, v->display);
            /* Set a pointer to the first radio button */
            g_object_set_data(G_OBJECT(radiobox),
                    EXTCAP_GTK_DATA_KEY_FIRSTRADIO, last_radio);
        } else {
            last_radio = gtk_radio_button_new_with_label_from_widget(
                    GTK_RADIO_BUTTON(last_radio), v->display);
        }

        /* Set a pointer to the value used in this radio */
        g_object_set_data(G_OBJECT(last_radio), EXTCAP_GTK_DATA_KEY_VALPTR, v);

        if (prev_item != NULL) {
            if (g_ascii_strcasecmp(prev_item, v->call) == 0) {
                gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(last_radio),
                        TRUE);
            }
        } else if (v->is_default) {
            gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(last_radio), TRUE);
        }

        gtk_box_pack_start(GTK_BOX(radiobox), last_radio, TRUE, TRUE, 0);
        gtk_widget_show(last_radio);
    }

    return radiobox;
}

static void extcap_gtk_multicheck_toggled(GtkCellRendererToggle *cell _U_,
        gchar *path_str, gpointer data) {
    GtkTreeModel *model = (GtkTreeModel *) data;
    GtkTreeIter iter;
    GtkTreePath *path = gtk_tree_path_new_from_string(path_str);
    gboolean enabled;

    gtk_tree_model_get_iter(model, &iter, path);
    gtk_tree_model_get(model, &iter, EXTCAP_GTK_MULTI_COL_CHECK, &enabled, -1);

    enabled ^= 1;

    gtk_tree_store_set(GTK_TREE_STORE(model), &iter, EXTCAP_GTK_MULTI_COL_CHECK,
            enabled, -1);

    gtk_tree_path_free(path);
}

GtkWidget *extcap_create_gtk_rangewidget(extcap_arg *argument,
        GHashTable *prev_map _U_) {
    GtkWidget *spinButton;
    GtkAdjustment *adjustment;

    gfloat def = 0.0f, min = 0.0f, max = 0.0f;

    switch (argument->arg_type) {
    case EXTCAP_ARG_INTEGER:
        def = (gfloat) extcap_complex_get_int(argument->default_complex);
        min = (gfloat) extcap_complex_get_int(argument->range_start);
        max = (gfloat) extcap_complex_get_int(argument->range_end);
        break;
    case EXTCAP_ARG_UNSIGNED:
        def = (gfloat) extcap_complex_get_uint(argument->default_complex);
        min = (gfloat) extcap_complex_get_uint(argument->range_start);
        max = (gfloat) extcap_complex_get_uint(argument->range_end);
        break;
    case EXTCAP_ARG_LONG:
        def = (gfloat) extcap_complex_get_long(argument->default_complex);
        min = (gfloat) extcap_complex_get_long(argument->range_start);
        max = (gfloat) extcap_complex_get_long(argument->range_end);
        break;
    case EXTCAP_ARG_DOUBLE:
        def = (gfloat) extcap_complex_get_double(argument->default_complex);
        min = (gfloat) extcap_complex_get_double(argument->range_start);
        max = (gfloat) extcap_complex_get_double(argument->range_end);
        break;
    default:
        return NULL ;
        break;
    }

    adjustment = (GtkAdjustment *)gtk_adjustment_new(def, min, max, 1.0, 10.0, 0.0);

    spinButton = gtk_spin_button_new(adjustment, 0, 0);
    gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(spinButton), TRUE);
    gtk_widget_set_size_request(spinButton, 80, -1);

    return spinButton;
}

static void extcap_file_selectiondialog( GtkWidget *widget _U_, gpointer data )
{
    GtkWidget * filechooser = NULL;
    GtkFileChooserAction action = GTK_FILE_CHOOSER_ACTION_SAVE;
    gchar *filename = NULL;
    gint res = 0;
    extcap_arg *argument = NULL;

    if ( GTK_ENTRY(data) == NULL )
        return;

    argument = (extcap_arg *)g_object_get_data(G_OBJECT(data), EXTCAP_GTK_DATA_KEY_ARGUMENT);
    if ( argument != NULL && argument->fileexists == TRUE )
        action = GTK_FILE_CHOOSER_ACTION_OPEN;

    filechooser = gtk_file_chooser_dialog_new("Select file path", NULL, action,
            "_Cancel", GTK_RESPONSE_CANCEL, "_Open", GTK_RESPONSE_ACCEPT, NULL);

    res = gtk_dialog_run (GTK_DIALOG (filechooser));
    if (res == GTK_RESPONSE_ACCEPT)
    {
        GtkFileChooser *chooser = GTK_FILE_CHOOSER (filechooser);
        filename = gtk_file_chooser_get_filename (chooser);

        /* this check might not be necessary, but just to be on the safe side */
        if ( action == GTK_FILE_CHOOSER_ACTION_OPEN && ! file_exists ( filename ) )
            filename = g_strdup ( " " );

        gtk_entry_set_text(GTK_ENTRY(data), filename);
    }

    gtk_widget_destroy (filechooser);
}

static GtkWidget *extcap_create_gtk_fileselect(extcap_arg *argument,
        GHashTable *prev_map _U_, gchar * file _U_) {
    GtkWidget * entry = NULL;
    GtkWidget * button = NULL;
    GtkWidget * ret_box = NULL;

    button = gtk_button_new_with_label ("...");
    entry = gtk_entry_new();
    if (file != NULL)
        gtk_entry_set_text(GTK_ENTRY(entry), file);
    gtk_editable_set_editable (GTK_EDITABLE (entry), FALSE);
    g_object_set_data(G_OBJECT(entry), EXTCAP_GTK_DATA_KEY_ARGUMENT, argument);

#if GTK_CHECK_VERSION(3, 0, 0)
    ret_box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 3);
#else
    ret_box = ws_gtk_hbox_new(FALSE, 3);
#endif

    gtk_box_pack_start ( GTK_BOX(ret_box), entry, TRUE, TRUE, 5 );
    gtk_widget_show(entry);
    gtk_box_pack_end ( GTK_BOX(ret_box), button, FALSE, FALSE, 5 );
    gtk_widget_show(button);

    g_signal_connect (button, "clicked",
                  G_CALLBACK (extcap_file_selectiondialog), (gpointer) entry);

    g_object_set_data(G_OBJECT(ret_box), EXTCAP_GTK_DATA_KEY_FILENAME, entry);

    return ret_box;
}

GtkWidget *extcap_create_gtk_multicheckwidget(extcap_arg *argument,
        GHashTable *prev_map) {
    GtkCellRenderer *renderer, *togglerenderer;
    GtkTreeModel *model;
    GtkWidget *view, *retview;
    GtkTreeStore *store;
    GtkTreeIter iter;
    GtkTreeSelection *selection;
    extcap_value *v = NULL;
    GList * walker = NULL;
    gchar *prev_item = NULL;
    gchar **prev_list = NULL, **prev_iter = NULL;
    gboolean prev_value, prev_matched;
    extcap_gtk_multi_find_cb_data find_data;

    if (g_list_length(argument->values) == 0)
        return NULL ;

    view = gtk_tree_view_new();

    selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(view));

    store = gtk_tree_store_new(EXTCAP_GTK_MULTI_NUM_COLS, G_TYPE_BOOLEAN,
            G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);

    model = GTK_TREE_MODEL(store);
    gtk_tree_view_set_model(GTK_TREE_VIEW(view), model);
    gtk_tree_selection_set_mode(selection, GTK_SELECTION_NONE);

    if (prev_map != NULL)
        prev_item = (gchar *) g_hash_table_lookup(prev_map, argument->call);

    if (prev_item != NULL)
        prev_list = g_strsplit(prev_item, ",", 0);

    for (walker = g_list_first(argument->values); walker != NULL ; walker =
            walker->next) {
        v = (extcap_value *) walker->data;
        if (v->display == NULL)
            break;

        find_data.parent = v->parent;
        find_data.parent_iter = NULL;

        if (find_data.parent != NULL)
        {
            gtk_tree_model_foreach(model, extcap_gtk_find_parent_in_multi_list,
                    &find_data);
            if (find_data.parent_iter == NULL)
            {
                g_log(LOG_DOMAIN_CAPTURE, G_LOG_LEVEL_DEBUG,
                    "Extcap parent %s not found for value %s (%s)",
                    v->parent, v->call, argument->call);
            }
        }

        prev_value = FALSE;
        gtk_tree_store_append(store, &iter, find_data.parent_iter);

        if (find_data.parent_iter != NULL)
        {
            gtk_tree_iter_free(find_data.parent_iter);
            find_data.parent_iter = NULL;
        }

        if (prev_list != NULL) {
            prev_matched = FALSE;
            prev_iter = prev_list;

            while (*prev_iter != NULL ) {
                if (g_strcmp0(*prev_iter, v->call) == 0) {
                    prev_matched = TRUE;
                    prev_value = TRUE;
                    break;
                }

                prev_iter++;
            }

            if (prev_matched == FALSE)
                prev_value = v->enabled;
        }
        else
        {
            /* Use default value if there is no information about previously selected items. */
            prev_value = v->is_default;
        }


        /* v->is_default is set when there was {default=true} for this value. */
        /* v->enabled is false for non-clickable tree items ({enabled=false}). */
        gtk_tree_store_set(store, &iter, EXTCAP_GTK_MULTI_COL_CHECK, prev_value,
                EXTCAP_GTK_MULTI_COL_DISPLAY, v->display,
                EXTCAP_GTK_MULTI_COL_VALUE, v,
                EXTCAP_GTK_MULTI_COL_ACTIVATABLE, v->enabled, -1);
    }

    g_strfreev(prev_list);

    renderer = gtk_cell_renderer_text_new();
    togglerenderer = gtk_cell_renderer_toggle_new();
    g_signal_connect(togglerenderer, "toggled",
            G_CALLBACK(extcap_gtk_multicheck_toggled), model);
    gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), -1,
            "Enabled", togglerenderer, "active", EXTCAP_GTK_MULTI_COL_CHECK,
            "activatable", EXTCAP_GTK_MULTI_COL_ACTIVATABLE,
            "visible", EXTCAP_GTK_MULTI_COL_ACTIVATABLE,
            NULL);
    gtk_tree_view_insert_column_with_attributes(GTK_TREE_VIEW(view), -1, "Name",
            renderer, "text", EXTCAP_GTK_MULTI_COL_DISPLAY,
            NULL);

    gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(view), FALSE);

    retview = extcap_gtk_wrap_scroll_treeview(view);

    if (gtk_tree_model_iter_n_children(model, NULL) > 3)
        gtk_widget_set_size_request(retview, 0, 100);

    /* Tree view has own reference */
    g_object_unref(model);

    return retview;
}

void extcap_gtk_free_args(GtkWidget *vbox) {
    GList *arguments = (GList *) g_object_get_data(G_OBJECT(vbox),
            EXTCAP_GTK_DATA_KEY_ARGPTR);
    extcap_free_arg_list(arguments);
    g_object_set_data(G_OBJECT(vbox), EXTCAP_GTK_DATA_KEY_ARGPTR, NULL);
}

GSList *extcap_populate_gtk_vbox(GList *arguments, GtkWidget *vbox,
        GHashTable *prev_map) {
    GSList *widget_toplist = NULL;

    extcap_arg *arg_iter = NULL;

    extcap_complex *prev_complex = NULL;
    gchar *prev_call = NULL, *default_str;

    GList * arg_list = g_list_first(arguments);
    if ( arg_list == NULL )
        return NULL;

    g_object_set_data(G_OBJECT(vbox), EXTCAP_GTK_DATA_KEY_ARGPTR, arguments);

    while (arg_list != NULL ) {
        GtkWidget *hbox = NULL, *label = NULL, *item = NULL;

        arg_iter = (extcap_arg*) (arg_list->data);

        /* A new storage box for label + element */

        hbox = ws_gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 5, FALSE);

        if (prev_map != NULL
                && (prev_call = (gchar *) g_hash_table_lookup(prev_map,
                        arg_iter->call)) != NULL) {
            prev_complex = extcap_parse_complex(arg_iter->arg_type, prev_call);
        } else {
            prev_complex = NULL;
        }

        switch (arg_iter->arg_type) {
        case EXTCAP_ARG_INTEGER:
        case EXTCAP_ARG_UNSIGNED:
        case EXTCAP_ARG_LONG:
        case EXTCAP_ARG_DOUBLE:
            label = gtk_label_new(arg_iter->display);
            gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.1f);
            item = extcap_create_gtk_rangewidget(arg_iter, prev_map);
            if (item == NULL) {
                item = gtk_entry_new();

                if (prev_complex != NULL) {
                    default_str = extcap_get_complex_as_string(prev_complex);
                    gtk_entry_set_text(GTK_ENTRY(item), default_str);
                    g_free(default_str);
                } else if (arg_iter->default_complex != NULL) {
                    default_str = extcap_get_complex_as_string(
                            arg_iter->default_complex);
                    gtk_entry_set_text(GTK_ENTRY(item), default_str);
                    g_free(default_str);
                }
            }
            break;
        case EXTCAP_ARG_STRING:
        case EXTCAP_ARG_PASSWORD:
            label = gtk_label_new(arg_iter->display);

            item = gtk_entry_new();
            default_str = NULL;

            if (prev_complex != NULL)
                default_str = extcap_get_complex_as_string(prev_complex);
            else if (arg_iter->default_complex != NULL)
                default_str = extcap_get_complex_as_string(
                        arg_iter->default_complex);

            if (default_str != NULL) {
                gtk_entry_set_text(GTK_ENTRY(item), default_str);
                g_free(default_str);
            }

            if ( arg_iter->arg_type == EXTCAP_ARG_PASSWORD)
                gtk_entry_set_visibility(GTK_ENTRY(item), FALSE);

            break;
        case EXTCAP_ARG_FILESELECT:
            label = gtk_label_new(arg_iter->display);
            default_str = NULL;

            if (prev_complex != NULL)
                default_str = extcap_get_complex_as_string(prev_complex);
            else if (arg_iter->default_complex != NULL)
                default_str = extcap_get_complex_as_string(
                        arg_iter->default_complex);

            gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.1f);
            item = extcap_create_gtk_fileselect(arg_iter, prev_map, default_str);
            g_free(default_str);
            break;
        case EXTCAP_ARG_TIMESTAMP:
            default_str = NULL;
            if (prev_complex != NULL)
                default_str = extcap_get_complex_as_string(prev_complex);
            else if (arg_iter->default_complex != NULL)
                default_str = extcap_get_complex_as_string(
                        arg_iter->default_complex);
            label = gtk_label_new(arg_iter->display);
            gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.1f);
            if (default_str != NULL) {
                gtk_entry_set_text(GTK_ENTRY(item), default_str);
                g_free(default_str);
            }

            item = gtk_calendar_new();
            break;
        case EXTCAP_ARG_BOOLEAN:
        case EXTCAP_ARG_BOOLFLAG:
            item = gtk_check_button_new_with_label(arg_iter->display);

            if (prev_complex != NULL) {
                if (extcap_complex_get_bool(prev_complex))
                    gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(item), TRUE);
            } else if (arg_iter->default_complex != NULL
                    && extcap_complex_get_bool(arg_iter->default_complex)) {
                gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(item), TRUE);
            }

            break;
        case EXTCAP_ARG_RADIO:
            label = gtk_label_new(arg_iter->display);
            gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.1f);
            item = extcap_create_gtk_radiowidget(arg_iter, prev_map);
            break;
        case EXTCAP_ARG_SELECTOR:
            label = gtk_label_new(arg_iter->display);
            gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.1f);
            item = extcap_create_gtk_listwidget(arg_iter, prev_map);
            break;
        case EXTCAP_ARG_MULTICHECK:
            label = gtk_label_new(arg_iter->display);
            gtk_misc_set_alignment(GTK_MISC(label), 0.0f, 0.1f);
            item = extcap_create_gtk_multicheckwidget(arg_iter, prev_map);
            break;
        default:
            break;
        }

        if (prev_complex != NULL)
            extcap_free_complex(prev_complex);

        if (label != NULL) {
            gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 5);
            gtk_widget_show(label);
        }

        if (item != NULL) {
            gtk_box_pack_start(GTK_BOX(hbox), item, TRUE, TRUE, 0);
            gtk_widget_show(item);
            g_object_set_data(G_OBJECT(item), EXTCAP_GTK_DATA_KEY_ARGPTR,
                    arg_iter);

            if (arg_iter->tooltip != NULL) {
                gtk_widget_set_tooltip_text(item, arg_iter->tooltip);
            }

            widget_toplist = g_slist_append(widget_toplist, item);
        }

        gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 1);

        gtk_widget_show(hbox);

        arg_list = arg_list->next;
    }

    return widget_toplist;
}

/*
 * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 *
 * Local variables:
 * c-basic-offset: 4
 * tab-width: 8
 * indent-tabs-mode: nil
 * End:
 *
 * vi: set shiftwidth=4 tabstop=8 expandtab:
 * :indentSize=4:tabSize=8:noTabs=true:
 */