path: root/src/ephy-history-model.c

/* 
 *  Copyright (C) 2002 Jorn Baayen <jorn@nl.linux.org>
 *
 *  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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 *  $Id$
 */

#include <config.h>
#include <gtk/gtktreeview.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <libgnome/gnome-i18n.h>
#include <time.h>
#include <string.h>

#include "ephy-node-filter.h"
#include "ephy-history-model.h"
#include "ephy-history.h"
#include "ephy-tree-model-node.h"
#include "ephy-stock-icons.h"
#include "ephy-node.h"

static void ephy_history_model_class_init (EphyHistoryModelClass *klass);
static void ephy_history_model_init (EphyHistoryModel *model);
static void ephy_history_model_finalize (GObject *object);
static void ephy_history_model_set_property (GObject *object,
                         guint prop_id,
                         const GValue *value,
                         GParamSpec *pspec);
static void ephy_history_model_get_property (GObject *object,
                         guint prop_id,
                         GValue *value,
                         GParamSpec *pspec);
static guint ephy_history_model_get_flags (GtkTreeModel *tree_model);
static int ephy_history_model_get_n_columns (GtkTreeModel *tree_model);
static GType ephy_history_model_get_column_type (GtkTreeModel *tree_model,
                         int index);
static gboolean ephy_history_model_get_iter (GtkTreeModel *tree_model,
                         GtkTreeIter *iter,
                         GtkTreePath *path);
static GtkTreePath *ephy_history_model_get_path (GtkTreeModel *tree_model,
                         GtkTreeIter *iter);
static void ephy_history_model_get_value (GtkTreeModel *tree_model,
                      GtkTreeIter *iter,
                      int column,
                      GValue *value);
static gboolean ephy_history_model_iter_next (GtkTreeModel *tree_model,
                          GtkTreeIter *iter);
static gboolean ephy_history_model_iter_children (GtkTreeModel *tree_model,
                          GtkTreeIter *iter,
                          GtkTreeIter *parent);
static gboolean ephy_history_model_iter_has_child (GtkTreeModel *tree_model,
                           GtkTreeIter *iter);
static int ephy_history_model_iter_n_children (GtkTreeModel *tree_model,
                           GtkTreeIter *iter);
static gboolean ephy_history_model_iter_nth_child (GtkTreeModel *tree_model,
                           GtkTreeIter *iter,
                           GtkTreeIter *parent,
                               int n);
static gboolean ephy_history_model_iter_parent (GtkTreeModel *tree_model,
                            GtkTreeIter *iter,
                            GtkTreeIter *child);
static void ephy_history_model_tree_model_init (GtkTreeModelIface *iface);
static void root_child_removed_cb (EphyNode *node,
                   EphyNode *child,
                   EphyHistoryModel *model);
static void root_child_added_cb (EphyNode *node,
                 EphyNode *child,
                 EphyHistoryModel *model);
static void root_child_changed_cb (EphyNode *node,
                   EphyNode *child,
                           EphyHistoryModel *model);
static inline void ephy_history_model_update_node (EphyHistoryModel *model,
                                   EphyNode *node,
                               int idx);

struct EphyHistoryModelPrivate
{
    EphyNode *root;
    EphyNode *pages;

    EphyNodeFilter *filter;
};

enum
{
    PROP_0,
    PROP_ROOT,
    PROP_PAGES,
    PROP_FILTER
};

static GObjectClass *parent_class = NULL;

GType
ephy_history_model_get_type (void)
{
    static GType ephy_history_model_type = 0;

    if (ephy_history_model_type == 0)
    {
        static const GTypeInfo our_info =
        {
            sizeof (EphyHistoryModelClass),
            NULL,
            NULL,
            (GClassInitFunc) ephy_history_model_class_init,
            NULL,
            NULL,
            sizeof (EphyHistoryModel),
            0,
            (GInstanceInitFunc) ephy_history_model_init
        };

        static const GInterfaceInfo tree_model_info =
        {
            (GInterfaceInitFunc) ephy_history_model_tree_model_init,
            NULL,
            NULL
        };

        ephy_history_model_type = g_type_register_static (G_TYPE_OBJECT,
                                  "EphyHistoryModel",
                                  &our_info, 0);

        g_type_add_interface_static (ephy_history_model_type,
                         GTK_TYPE_TREE_MODEL,
                         &tree_model_info);
    }

    return ephy_history_model_type;
}

static void
ephy_history_model_class_init (EphyHistoryModelClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    parent_class = g_type_class_peek_parent (klass);

    object_class->finalize = ephy_history_model_finalize;

    object_class->set_property = ephy_history_model_set_property;
    object_class->get_property = ephy_history_model_get_property;

    g_object_class_install_property (object_class,
                     PROP_ROOT,
                     g_param_spec_object ("root",
                                  "Root node",
                                  "Root node",
                                  EPHY_TYPE_NODE,
                                  G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
    g_object_class_install_property (object_class,
                     PROP_PAGES,
                     g_param_spec_object ("pages",
                                  "Pages node",
                                  "Pages node",
                                  EPHY_TYPE_NODE,
                                  G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));

    g_object_class_install_property (object_class,
                     PROP_FILTER,
                     g_param_spec_object ("filter",
                                  "Filter object",
                                  "Filter object",
                                  EPHY_TYPE_NODE_FILTER,
                                  G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
}

static void
ephy_history_model_init (EphyHistoryModel *model)
{
    GtkWidget *dummy;

    do
    {
        model->stamp = g_random_int ();
    }
    while (model->stamp == 0);

    model->priv = g_new0 (EphyHistoryModelPrivate, 1);

    dummy = gtk_tree_view_new ();

    gtk_widget_destroy (dummy);
}

static void
ephy_history_model_finalize (GObject *object)
{
    EphyHistoryModel *model;

    g_return_if_fail (object != NULL);
    g_return_if_fail (EPHY_IS_HISTORY_MODEL (object));

    model = EPHY_HISTORY_MODEL (object);

    g_return_if_fail (model->priv != NULL);

    g_free (model->priv);

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

static void
filter_changed_cb (EphyNodeFilter *filter,
           EphyHistoryModel *model)
{
    GPtrArray *kids;
    int i;

    kids = ephy_node_get_children (model->priv->root);

    for (i = 0; i < kids->len; i++)
    {
        ephy_history_model_update_node (model,
                        g_ptr_array_index (kids, i),
                        i);
    }

    ephy_node_thaw (model->priv->root);
}

static void
ephy_history_model_set_property (GObject *object,
                     guint prop_id,
                     const GValue *value,
                     GParamSpec *pspec)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (object);

    switch (prop_id)
    {
    case PROP_ROOT:
        model->priv->root = g_value_get_object (value);
        g_signal_connect_object (G_OBJECT (model->priv->root),
                         "child_added",
                         G_CALLBACK (root_child_added_cb),
                         G_OBJECT (model),
                     0);
        g_signal_connect_object (G_OBJECT (model->priv->root),
                         "child_removed",
                         G_CALLBACK (root_child_removed_cb),
                         G_OBJECT (model),
                     0);
        g_signal_connect_object (G_OBJECT (model->priv->root),
                         "child_changed",
                         G_CALLBACK (root_child_changed_cb),
                         G_OBJECT (model),
                     0);
        break;
    case PROP_PAGES:
        model->priv->pages = g_value_get_object (value);
        g_signal_connect_object (G_OBJECT (model->priv->pages),
                         "child_added",
                         G_CALLBACK (root_child_added_cb),
                         G_OBJECT (model),
                     0);
        g_signal_connect_object (G_OBJECT (model->priv->pages),
                         "child_removed",
                         G_CALLBACK (root_child_removed_cb),
                         G_OBJECT (model),
                     0);
        g_signal_connect_object (G_OBJECT (model->priv->pages),
                         "child_changed",
                         G_CALLBACK (root_child_changed_cb),
                         G_OBJECT (model),
                     0);
        break;
    case PROP_FILTER:
        model->priv->filter = g_value_get_object (value);

        if (model->priv->filter != NULL)
        {
            g_signal_connect_object (G_OBJECT (model->priv->filter),
                             "changed",
                             G_CALLBACK (filter_changed_cb),
                             G_OBJECT (model),
                         0);
        }
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

static void
ephy_history_model_get_property (GObject *object,
                     guint prop_id,
                 GValue *value,
                     GParamSpec *pspec)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (object);

    switch (prop_id)
    {
    case PROP_ROOT:
        g_value_set_object (value, model->priv->root);
        break;
    case PROP_PAGES:
        g_value_set_object (value, model->priv->root);
        break;
    case PROP_FILTER:
        g_value_set_object (value, model->priv->filter);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

EphyHistoryModel *
ephy_history_model_new (EphyNode *root,
            EphyNode *pages,
            EphyNodeFilter *filter)
{
    EphyHistoryModel *model;

    model = EPHY_HISTORY_MODEL (g_object_new (EPHY_TYPE_HISTORY_MODEL,
                          "filter", filter,
                          "root", root,
                          "pages", pages,
                          NULL));

    g_return_val_if_fail (model->priv != NULL, NULL);

    return model;
}

static void
ephy_history_model_tree_model_init (GtkTreeModelIface *iface)
{
    iface->get_flags       = ephy_history_model_get_flags;
    iface->get_n_columns   = ephy_history_model_get_n_columns;
    iface->get_column_type = ephy_history_model_get_column_type;
    iface->get_iter        = ephy_history_model_get_iter;
    iface->get_path        = ephy_history_model_get_path;
    iface->get_value       = ephy_history_model_get_value;
    iface->iter_next       = ephy_history_model_iter_next;
    iface->iter_children   = ephy_history_model_iter_children;
    iface->iter_has_child  = ephy_history_model_iter_has_child;
    iface->iter_n_children = ephy_history_model_iter_n_children;
    iface->iter_nth_child  = ephy_history_model_iter_nth_child;
    iface->iter_parent     = ephy_history_model_iter_parent;
}

static guint
ephy_history_model_get_flags (GtkTreeModel *tree_model)
{
    return 0;
}

static int
ephy_history_model_get_n_columns (GtkTreeModel *tree_model)
{
    return EPHY_HISTORY_MODEL_NUM_COLUMNS;
}

static GType
ephy_history_model_get_column_type (GtkTreeModel *tree_model,
                        int index)
{
    g_return_val_if_fail (EPHY_IS_HISTORY_MODEL (tree_model), G_TYPE_INVALID);
    g_return_val_if_fail ((index < EPHY_HISTORY_MODEL_NUM_COLUMNS) && (index >= 0), G_TYPE_INVALID);

    switch (index)
    {
        case EPHY_HISTORY_MODEL_COL_TITLE:
        case EPHY_HISTORY_MODEL_COL_LOCATION:
        case EPHY_HISTORY_MODEL_COL_VISITS:
        case EPHY_HISTORY_MODEL_COL_LAST_VISIT:
        case EPHY_HISTORY_MODEL_COL_FIRST_VISIT:
            return G_TYPE_STRING;
        case EPHY_HISTORY_MODEL_COL_VISIBLE:
            return G_TYPE_BOOLEAN;
    default:
        g_assert_not_reached ();
        return G_TYPE_INVALID;
    }
}

static gboolean
ephy_history_model_get_iter (GtkTreeModel *tree_model,
                 GtkTreeIter *iter,
                 GtkTreePath *path)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    gint *indices;
    gint depth;
    EphyNode *host;

    g_return_val_if_fail (EPHY_IS_HISTORY_MODEL (model), FALSE);

    indices = gtk_tree_path_get_indices (path);
    depth = gtk_tree_path_get_depth (path);

    g_return_val_if_fail (depth > 0, FALSE);

    iter->stamp = model->stamp;
    host = ephy_node_get_nth_child (model->priv->root, indices [0]);

    if (depth == 2 && host != NULL)
    {
        iter->user_data = ephy_node_get_nth_child (host, indices [1]);
    }
    else
    {
        iter->user_data = host;
    }

    if (iter->user_data == NULL)
    {
        iter->stamp = 0;
        return FALSE;
    }

    return TRUE;
}

static EphyNode *
ensure_iter (EphyHistoryModel *model, GtkTreeIter *parent)
{
    EphyNode *node;

    if (parent)
    {
        node = EPHY_NODE (parent->user_data);
    }
    else
    {
        node = model->priv->root;
    }

    return node;
}

static EphyNode *
get_parent_node (EphyHistoryModel *model, EphyNode *node)
{
    int host_id;

    host_id = ephy_node_get_property_int (node, EPHY_NODE_PAGE_PROP_HOST_ID);

    if (host_id < 0)
    {
        return model->priv->root;
    }
    else
    {
        EphyNode *host;
        host = ephy_node_get_from_id (host_id);
        return host;
    }
}

static inline GtkTreePath *
get_one_level_path_real (EphyHistoryModel *model,
                     EphyNode *node)
{
    GtkTreePath *retval;
    EphyNode *my_parent;

    retval = gtk_tree_path_new ();

    my_parent = get_parent_node (model, node);
    g_return_val_if_fail (my_parent != NULL, NULL);

    gtk_tree_path_append_index (retval, ephy_node_get_child_index (my_parent, node));

    return retval;
}

static inline GtkTreePath *
get_path_real (EphyHistoryModel *model,
           EphyNode *page)
{
    GtkTreePath *retval;
    EphyNode *host;

    host = get_parent_node (model, page);
    if (host != NULL) return NULL;

    retval = gtk_tree_path_new ();

    gtk_tree_path_append_index (retval, ephy_node_get_child_index (model->priv->root, host));
    gtk_tree_path_append_index (retval, ephy_node_get_child_index (host, page));

    return retval;
}

static GtkTreePath *
ephy_history_model_get_path (GtkTreeModel *tree_model,
                 GtkTreeIter *iter)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;

    g_return_val_if_fail (EPHY_IS_HISTORY_MODEL (tree_model), NULL);
    g_return_val_if_fail (iter != NULL, NULL);
    g_return_val_if_fail (iter->user_data != NULL, NULL);
    g_return_val_if_fail (iter->stamp == model->stamp, NULL);

    node = EPHY_NODE (iter->user_data);

    if (node == model->priv->root)
        return gtk_tree_path_new ();

    return get_one_level_path_real (model, node);
}

static void
get_property_as_date (EphyNode *node,
              int id,
              GValue *value)
{
    GTime time;
    char s[50];
    GDate *date;

    time = ephy_node_get_property_int (node, id);
    date = g_date_new ();
    g_date_set_time (date, time);
    g_date_strftime (s, 50, "%c", date);

    g_value_init (value, G_TYPE_STRING);
    g_value_set_string (value, s);

    g_date_free (date);
}

static void
ephy_history_model_get_value (GtkTreeModel *tree_model,
                  GtkTreeIter *iter,
                  int column,
                  GValue *value)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;

    g_return_if_fail (EPHY_IS_HISTORY_MODEL (tree_model));
    g_return_if_fail (iter != NULL);
    g_return_if_fail (iter->stamp == model->stamp);
    g_return_if_fail (EPHY_IS_NODE (iter->user_data));
    g_return_if_fail (column < EPHY_HISTORY_MODEL_NUM_COLUMNS);

    node = EPHY_NODE (iter->user_data);

    if (ephy_node_get_property_int (node, EPHY_NODE_PAGE_PROP_HOST_ID) < 0 &&
        (column == EPHY_HISTORY_MODEL_COL_LOCATION ||
         column == EPHY_HISTORY_MODEL_COL_FIRST_VISIT ||
         column == EPHY_HISTORY_MODEL_COL_LAST_VISIT ||
         column == EPHY_HISTORY_MODEL_COL_VISITS))
    {
        g_value_init (value, G_TYPE_STRING);
        g_value_set_string (value, "");
        return;
    }

    switch (column)
    {
    case EPHY_HISTORY_MODEL_COL_TITLE:
        ephy_node_get_property (node,
                    EPHY_NODE_PAGE_PROP_TITLE,
                        value);
        break;
    case EPHY_HISTORY_MODEL_COL_LOCATION:
        ephy_node_get_property (node,
                        EPHY_NODE_PAGE_PROP_LOCATION,
                        value);
        break;
    case EPHY_HISTORY_MODEL_COL_VISITS:
        ephy_node_get_property (node,
                        EPHY_NODE_PAGE_PROP_VISITS,
                        value);
        break;
    case EPHY_HISTORY_MODEL_COL_FIRST_VISIT:
        get_property_as_date (node,
                      EPHY_NODE_PAGE_PROP_FIRST_VISIT,
                      value);
        break;
    case EPHY_HISTORY_MODEL_COL_LAST_VISIT:
        get_property_as_date (node,
                      EPHY_NODE_PAGE_PROP_LAST_VISIT,
                      value);
        break;
    case EPHY_HISTORY_MODEL_COL_VISIBLE:
        g_value_init (value, G_TYPE_BOOLEAN);

        if (model->priv->filter != NULL)
        {
            g_value_set_boolean (value,
                         ephy_node_filter_evaluate (model->priv->filter, node));
        }
        else
        {
            g_value_set_boolean (value, TRUE);
        }
        break;
    default:
        g_assert_not_reached ();
        break;
    }
}

static gboolean
ephy_history_model_iter_next (GtkTreeModel *tree_model,
                  GtkTreeIter *iter)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;

    g_return_val_if_fail (iter != NULL, FALSE);
    g_return_val_if_fail (iter->user_data != NULL, FALSE);
    g_return_val_if_fail (iter->stamp == EPHY_HISTORY_MODEL (tree_model)->stamp, FALSE);

    node = EPHY_NODE (iter->user_data);

    iter->user_data = ephy_node_get_next_child
        (get_parent_node (model, node), node);

    return (iter->user_data != NULL);
}

static gboolean
ephy_history_model_iter_children (GtkTreeModel *tree_model,
                      GtkTreeIter *iter,
                      GtkTreeIter *parent)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;

    node = ensure_iter (model, parent);

    iter->user_data = ephy_node_get_nth_child (node, 0);
    iter->stamp = model->stamp;

    return (iter->user_data != NULL);
}

static gboolean
ephy_history_model_iter_has_child (GtkTreeModel *tree_model,
                       GtkTreeIter *iter)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;
    int host_id;

    node = EPHY_NODE (iter->user_data);
    host_id = ephy_node_get_property_int (node, EPHY_NODE_PAGE_PROP_HOST_ID);
    if (host_id < 0)
    {
        return ephy_node_has_child (model->priv->root, node);
    }
    else
    {
        return FALSE;
    }
}

static int
ephy_history_model_iter_n_children (GtkTreeModel *tree_model,
                        GtkTreeIter *iter)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;

    g_return_val_if_fail (iter == NULL || iter->user_data != NULL, FALSE);

    node = ensure_iter (model, iter);

    return ephy_node_get_n_children (node);
}

static gboolean
ephy_history_model_iter_nth_child (GtkTreeModel *tree_model,
                       GtkTreeIter *iter,
                       GtkTreeIter *parent,
                       int n)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *node;

    node = ensure_iter (model, parent);

    iter->user_data = ephy_node_get_nth_child (node, n);
    iter->stamp = model->stamp;

    return (iter->user_data != NULL);
}

static gboolean
ephy_history_model_iter_parent (GtkTreeModel *tree_model,
                    GtkTreeIter *iter,
                    GtkTreeIter *child)
{
    EphyHistoryModel *model = EPHY_HISTORY_MODEL (tree_model);
    EphyNode *parent, *node;

    node = EPHY_NODE (iter->user_data);
    parent = get_parent_node (model, node);

    if (parent != model->priv->root)
    {
        iter->user_data = parent;
        iter->stamp = model->stamp;
        return TRUE;
    }
    else
    {
        return FALSE;
    }
}

EphyNode *
ephy_history_model_node_from_iter (EphyHistoryModel *model,
                   GtkTreeIter *iter)
{
    return EPHY_NODE (iter->user_data);
}

void
ephy_history_model_iter_from_node (EphyHistoryModel *model,
                   EphyNode *node,
                   GtkTreeIter *iter)
{
    iter->stamp = model->stamp;
    iter->user_data = node;
}

static inline void
ephy_history_model_update_node (EphyHistoryModel *model,
                EphyNode *node,
                int idx)
{
    GtkTreePath *path;
    GtkTreeIter iter;

    ephy_history_model_iter_from_node (model, node, &iter);

    if (idx >= 0)
    {
        path = gtk_tree_path_new ();
        gtk_tree_path_append_index (path, idx);
    }
    else
    {
        path = get_one_level_path_real (model, node);
    }

    gtk_tree_model_row_changed (GTK_TREE_MODEL (model), path, &iter);
    gtk_tree_path_free (path);
}

static void
root_child_removed_cb (EphyNode *node,
               EphyNode *child,
               EphyHistoryModel *model)
{
    GtkTreePath *path;

    if (node == model->priv->root)
    {
        path = get_one_level_path_real (model, child);
    }
    else
    {
        path = get_path_real (model, child);
    }

    if (path)
    {
        gtk_tree_model_row_deleted (GTK_TREE_MODEL (model), path);
        gtk_tree_path_free (path);
    }
}

static void
root_child_added_cb (EphyNode *node,
             EphyNode *child,
             EphyHistoryModel *model)
{
    GtkTreePath *path;
    GtkTreeIter iter;

    ephy_history_model_iter_from_node (model, child, &iter);

    if (node == model->priv->root)
    {
        path = get_one_level_path_real (model, child);
    }
    else
    {
        path = get_path_real (model, child);
    }

    gtk_tree_model_row_inserted (GTK_TREE_MODEL (model), path, &iter);
    gtk_tree_path_free (path);
}

static void
root_child_changed_cb (EphyNode *node,
               EphyNode *child,
               EphyHistoryModel *model)
{
    ephy_history_model_update_node (model, child, -1);
}

GType
ephy_history_model_column_get_type (void)
{
    static GType etype = 0;

    if (etype == 0)
    {
        static const GEnumValue values[] =
        {
            { EPHY_HISTORY_MODEL_COL_TITLE,    "EPHY_HISTORY_MODEL_COL_TITLE", "title" },
            { EPHY_HISTORY_MODEL_COL_LOCATION, "EPHY_HISTORY_MODEL_COL_LOCATION", "location" },
            { EPHY_HISTORY_MODEL_COL_VISITS,   "EPHY_HISTORY_MODEL_COL_VISITS", "visits" },
            { EPHY_HISTORY_MODEL_COL_FIRST_VISIT,  "EPHY_HISTORY_MODEL_COL_FIRST_VISIT", "last_visit" },
            { EPHY_HISTORY_MODEL_COL_LAST_VISIT,  "EPHY_HISTORY_MODEL_COL_LAST_VISIT", "last_visit" },
            { EPHY_HISTORY_MODEL_COL_VISIBLE,  "EPHY_HISTORY_MODEL_COL_FIRST_VISIT", "first_visit" },

            { 0, 0, 0 }
        };

        etype = g_enum_register_static ("EphyHistoryModelColumn", values);
    }

    return etype;
}