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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * gal-view-etable.c
 * Copyright 2000, 2001, Ximian, Inc.
 *
 * Authors:
 *   Chris Lahey <clahey@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., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#include <config.h>
#include "gal-view-etable.h"
#include <gal/e-table/e-table-config.h>

#define PARENT_TYPE GAL_VIEW_TYPE

static GalViewClass *gal_view_etable_parent_class;

static void
detach_table (GalViewEtable *view)
{
    if (view->table == NULL)
        return;
    if (view->table_state_changed_id) {
        g_signal_handler_disconnect (view->table,
                         view->table_state_changed_id);
        view->table_state_changed_id = 0;
    }
    g_object_unref (view->table);
    view->table = NULL;
}

static void
detach_tree (GalViewEtable *view)
{
    if (view->tree == NULL)
        return;
    if (view->tree_state_changed_id) {
        g_signal_handler_disconnect (view->tree,
                         view->tree_state_changed_id);
        view->tree_state_changed_id = 0;
    }
    g_object_unref (view->tree);
    view->tree = NULL;
}

static void
config_changed (ETableConfig *config, GalViewEtable *view)
{
    ETableState *state;
    if (view->state)
        g_object_unref(view->state);
    g_object_get (config,
              "state", &state,
              NULL);
    view->state = e_table_state_duplicate(state);
    gal_view_changed(GAL_VIEW(view));
}

static void
gal_view_etable_edit            (GalView *view, GtkWindow *parent)
{
    GalViewEtable *etable_view = GAL_VIEW_ETABLE(view);
    ETableConfig *config;

    config = e_table_config_new(etable_view->title,
                    etable_view->spec,
                    etable_view->state,
                    parent);

    g_signal_connect(config, "changed",
             G_CALLBACK(config_changed), view);
}

static void  
gal_view_etable_load  (GalView *view,
               const char *filename)
{
    e_table_state_load_from_file(GAL_VIEW_ETABLE(view)->state, filename);
}

static void
gal_view_etable_save    (GalView *view,
             const char *filename)
{
    e_table_state_save_to_file(GAL_VIEW_ETABLE(view)->state, filename);
}

static const char *
gal_view_etable_get_title       (GalView *view)
{
    return GAL_VIEW_ETABLE(view)->title;
}

static void
gal_view_etable_set_title (GalView *view,
               const char *title)
{
    g_free(GAL_VIEW_ETABLE(view)->title);
    GAL_VIEW_ETABLE(view)->title = g_strdup(title);
}

static const char *
gal_view_etable_get_type_code (GalView *view)
{
    return "etable";
}

static GalView *
gal_view_etable_clone       (GalView *view)
{
    GalViewEtable *gve, *new;

    gve = GAL_VIEW_ETABLE(view);

    new        = g_object_new (GAL_VIEW_ETABLE_TYPE, NULL);
    new->spec  = gve->spec;
    new->title = g_strdup (gve->title);
    new->state = e_table_state_duplicate(gve->state);

    g_object_ref(new->spec);

    return GAL_VIEW(new);
}

static void
gal_view_etable_dispose         (GObject *object)
{
    GalViewEtable *view = GAL_VIEW_ETABLE(object);

    gal_view_etable_detach (view);

    g_free(view->title);
    view->title = NULL;

    if (view->spec)
        g_object_unref(view->spec);
    view->spec = NULL;

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

    if (G_OBJECT_CLASS (gal_view_etable_parent_class)->dispose)
        (* G_OBJECT_CLASS (gal_view_etable_parent_class)->dispose) (object);
}

static void
gal_view_etable_class_init      (GObjectClass *object_class)
{
    GalViewClass *gal_view_class  = GAL_VIEW_CLASS(object_class);
    gal_view_etable_parent_class  = g_type_class_ref (PARENT_TYPE);

    gal_view_class->edit          = gal_view_etable_edit         ;
    gal_view_class->load          = gal_view_etable_load         ;
    gal_view_class->save          = gal_view_etable_save         ;
    gal_view_class->get_title     = gal_view_etable_get_title    ;
    gal_view_class->set_title     = gal_view_etable_set_title    ;
    gal_view_class->get_type_code = gal_view_etable_get_type_code;
    gal_view_class->clone         = gal_view_etable_clone        ;

    object_class->dispose         = gal_view_etable_dispose      ;
}

static void
gal_view_etable_init      (GalViewEtable *gve)
{
    gve->spec  = NULL;
    gve->state = e_table_state_new();
    gve->title = NULL;
}

E_MAKE_TYPE(gal_view_etable, "GalViewEtable", GalViewEtable, gal_view_etable_class_init, gal_view_etable_init, PARENT_TYPE)

/**
 * gal_view_etable_new
 * @spec: The ETableSpecification that this view will be based upon.
 * @title: The name of the new view.
 *
 * Returns a new GalViewEtable.  This is primarily for use by
 * GalViewFactoryEtable.
 *
 * Returns: The new GalViewEtable.
 */
GalView *
gal_view_etable_new (ETableSpecification *spec,
             const gchar *title)
{
    return gal_view_etable_construct (g_object_new (GAL_VIEW_ETABLE_TYPE, NULL), spec, title);
}

/**
 * gal_view_etable_construct
 * @view: The view to construct.
 * @spec: The ETableSpecification that this view will be based upon.
 * @title: The name of the new view.
 *
 * constructs the GalViewEtable.  To be used by subclasses and
 * language bindings.
 *
 * Returns: The GalViewEtable.
 */
GalView *
gal_view_etable_construct  (GalViewEtable *view,
                ETableSpecification *spec,
                const gchar *title)
{
    if (spec)
        g_object_ref(spec);
    view->spec = spec;

    if (view->state)
        g_object_unref(view->state);
    view->state = e_table_state_duplicate(spec->state);

    view->title = g_strdup(title);

    return GAL_VIEW(view);
}

void
gal_view_etable_set_state (GalViewEtable *view, ETableState *state)
{
    if (view->state)
        g_object_unref(view->state);
    view->state = e_table_state_duplicate(state);

    gal_view_changed(GAL_VIEW(view));
}

static void
table_state_changed (ETable *table, GalViewEtable *view)
{
    ETableState *state;

    state = e_table_get_state_object (table);
    g_object_unref (view->state);
    view->state = state;

    gal_view_changed(GAL_VIEW(view));
}

static void
tree_state_changed (ETree *tree, GalViewEtable *view)
{
    ETableState *state;

    state = e_tree_get_state_object (tree);
    g_object_unref (view->state);
    view->state = state;

    gal_view_changed(GAL_VIEW(view));
}

void
gal_view_etable_attach_table (GalViewEtable *view, ETable *table)
{
    gal_view_etable_detach (view);

    view->table = table;

    e_table_set_state_object(view->table, view->state);
    g_object_ref (view->table);
    view->table_state_changed_id =
        g_signal_connect(view->table, "state_change",
                 G_CALLBACK (table_state_changed), view);
}

void
gal_view_etable_attach_tree (GalViewEtable *view, ETree *tree)
{
    gal_view_etable_detach (view);

    view->tree = tree;

    e_tree_set_state_object(view->tree, view->state);
    g_object_ref (view->tree);
    view->tree_state_changed_id =
        g_signal_connect(view->tree, "state_change",
                 G_CALLBACK (tree_state_changed), view);
}

void
gal_view_etable_detach (GalViewEtable *view)
{
    if (view->table != NULL)
        detach_table (view);
    if (view->tree != NULL)
        detach_tree (view);
}