path: root/widgets/table/e-tree-scrolled.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * e-tree-scrolled.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 <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdio.h>
#include <libgnomecanvas/gnome-canvas.h>
#include <gtk/gtksignal.h>
#include <libxml/parser.h>
#include <libxml/xmlmemory.h>
#include <gal/util/e-util.h>
#include <gal/util/e-i18n.h>

#include "e-tree-scrolled.h"

#define COLUMN_HEADER_HEIGHT 16

#define PARENT_TYPE e_scroll_frame_get_type ()

static GtkObjectClass *parent_class;

enum {
    PROP_0,
    PROP_TREE
};

static void
e_tree_scrolled_init (GtkObject *object)
{
    ETreeScrolled *ets;
    EScrollFrame *scroll_frame;

    ets          = E_TREE_SCROLLED (object);
    scroll_frame = E_SCROLL_FRAME   (object);

    GTK_WIDGET_SET_FLAGS (ets, GTK_CAN_FOCUS);

    ets->tree = g_object_new (E_TREE_TYPE, NULL);

    e_scroll_frame_set_policy      (scroll_frame, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
    e_scroll_frame_set_shadow_type (scroll_frame, GTK_SHADOW_IN);
}

static void
e_tree_scrolled_real_construct (ETreeScrolled *ets)
{
    gtk_container_add(GTK_CONTAINER(ets), GTK_WIDGET(ets->tree));

    gtk_widget_show(GTK_WIDGET(ets->tree));
}

ETreeScrolled *e_tree_scrolled_construct                 (ETreeScrolled    *ets,
                                ETreeModel       *etm,
                                ETableExtras      *ete,
                                const char        *spec,
                                const char        *state)
{
    g_return_val_if_fail(ets != NULL, NULL);
    g_return_val_if_fail(E_IS_TREE_SCROLLED(ets), NULL);
    g_return_val_if_fail(etm != NULL, NULL);
    g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL);
    g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL);
    g_return_val_if_fail(spec != NULL, NULL);

    e_tree_construct(ets->tree, etm, ete, spec, state);

    e_tree_scrolled_real_construct(ets);

    return ets;
}

GtkWidget      *e_tree_scrolled_new                       (ETreeModel       *etm,
                                ETableExtras      *ete,
                                const char        *spec,
                                const char        *state)
{
    ETreeScrolled *ets;

    g_return_val_if_fail(etm != NULL, NULL);
    g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL);
    g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL);
    g_return_val_if_fail(spec != NULL, NULL);

    ets = E_TREE_SCROLLED (gtk_widget_new (e_tree_scrolled_get_type (),
                        "hadjustment", NULL,
                        "vadjustment", NULL,
                        NULL));

    ets = e_tree_scrolled_construct (ets, etm, ete, spec, state);

    return GTK_WIDGET (ets);
}

ETreeScrolled *e_tree_scrolled_construct_from_spec_file  (ETreeScrolled    *ets,
                                ETreeModel       *etm,
                                ETableExtras      *ete,
                                const char        *spec_fn,
                                const char        *state_fn)
{
    g_return_val_if_fail(ets != NULL, NULL);
    g_return_val_if_fail(E_IS_TREE_SCROLLED(ets), NULL);
    g_return_val_if_fail(etm != NULL, NULL);
    g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL);
    g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL);
    g_return_val_if_fail(spec_fn != NULL, NULL);

    e_tree_construct_from_spec_file(ets->tree, etm, ete, spec_fn, state_fn);

    e_tree_scrolled_real_construct(ets);

    return ets;
}

GtkWidget      *e_tree_scrolled_new_from_spec_file        (ETreeModel       *etm,
                                ETableExtras      *ete,
                                const char        *spec_fn,
                                const char        *state_fn)
{
    ETreeScrolled *ets;

    g_return_val_if_fail(etm != NULL, NULL);
    g_return_val_if_fail(E_IS_TREE_MODEL(etm), NULL);
    g_return_val_if_fail(ete == NULL || E_IS_TABLE_EXTRAS(ete), NULL);
    g_return_val_if_fail(spec_fn != NULL, NULL);

    ets = E_TREE_SCROLLED (gtk_widget_new (e_tree_scrolled_get_type (),
                                                "hadjustment", NULL,
                                                "vadjustment", NULL,
                                                NULL));
    ets = e_tree_scrolled_construct_from_spec_file (ets, etm, ete, spec_fn, state_fn);

    return GTK_WIDGET (ets);
}

ETree *
e_tree_scrolled_get_tree                 (ETreeScrolled *ets)
{
    return ets->tree;
}

static void
ets_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
    ETreeScrolled *ets = E_TREE_SCROLLED (object);

    switch (prop_id){
    case PROP_TREE:
        g_value_set_object (value, ets->tree);
        break;
    default:
        G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
        break;
    }
}

/* Grab_focus handler for the scrolled ETree */
static void
ets_grab_focus (GtkWidget *widget)
{
    ETreeScrolled *ets;

    ets = E_TREE_SCROLLED (widget);

    gtk_widget_grab_focus (GTK_WIDGET (ets->tree));
}

/* Focus handler for the scrolled ETree */
static gint
ets_focus (GtkWidget *container, GtkDirectionType direction)
{
    ETreeScrolled *ets;

    ets = E_TREE_SCROLLED (container);

    return gtk_widget_child_focus (GTK_WIDGET (ets->tree), direction);
}

static void
e_tree_scrolled_class_init (ETreeScrolledClass *class)
{
    GObjectClass *object_class;
    GtkWidgetClass *widget_class;
    GtkContainerClass *container_class;

    object_class = (GObjectClass *) class;
    widget_class = (GtkWidgetClass *) class;
    container_class = (GtkContainerClass *) class;

    parent_class = g_type_class_ref (PARENT_TYPE);

    object_class->get_property = ets_get_property;

    widget_class->grab_focus = ets_grab_focus;

    widget_class->focus = ets_focus;

    g_object_class_install_property (object_class, PROP_TREE,
                     g_param_spec_object ("tree",
                                  _( "Tree" ),
                                  _( "Tree" ),
                                  E_TREE_TYPE,
                                  G_PARAM_READABLE));
}

E_MAKE_TYPE(e_tree_scrolled, "ETreeScrolled", ETreeScrolled, e_tree_scrolled_class_init, e_tree_scrolled_init, PARENT_TYPE)