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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors:
* Christopher James Lahey <clahey@umich.edu>
*
* Copyright (C) 2000 Ximian, Inc.
* Copyright (C) 1999 The Free Software Foundation
*/
#include <config.h>
#include "e-iterator.h"
#include "e-util-marshal.h"
static void e_iterator_init (EIterator *card);
static void e_iterator_class_init (EIteratorClass *klass);
#define PARENT_TYPE G_TYPE_OBJECT
static GObjectClass *parent_class;
enum {
INVALIDATE,
LAST_SIGNAL
};
static guint e_iterator_signals [LAST_SIGNAL] = { 0, };
/**
* e_iterator_get_type:
* @void:
*
* Registers the &EIterator class if necessary, and returns the type ID
* associated to it.
*
* Return value: The type ID of the &EIterator class.
**/
GType
e_iterator_get_type (void)
{
static GType type = 0;
if (! type) {
GTypeInfo info = {
sizeof (EIteratorClass),
NULL, /* base_class_init */
NULL, /* base_class_finalize */
(GClassInitFunc) e_iterator_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (EIterator),
0, /* n_preallocs */
(GInstanceInitFunc) e_iterator_init
};
type = g_type_register_static (PARENT_TYPE, "EIterator", &info, 0);
}
return type;
}
static void
e_iterator_class_init (EIteratorClass *klass)
{
GObjectClass *object_class;
object_class = G_OBJECT_CLASS(klass);
parent_class = g_type_class_ref (PARENT_TYPE);
e_iterator_signals [INVALIDATE] =
g_signal_new ("invalidate",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (EIteratorClass, invalidate),
NULL, NULL,
e_util_marshal_NONE__NONE, /* XXX need a new marshaller here */
G_TYPE_NONE, 0);
klass->invalidate = NULL;
klass->get = NULL;
klass->reset = NULL;
klass->last = NULL;
klass->next = NULL;
klass->prev = NULL;
klass->delete = NULL;
klass->insert = NULL;
klass->set = NULL;
klass->is_valid = NULL;
}
/**
* e_iterator_init:
*/
static void
e_iterator_init (EIterator *card)
{
}
/*
* Virtual functions:
*/
const void *
e_iterator_get (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->get)
return E_ITERATOR_GET_CLASS(iterator)->get(iterator);
else
return NULL;
}
void
e_iterator_reset (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->reset)
E_ITERATOR_GET_CLASS(iterator)->reset(iterator);
}
void
e_iterator_last (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->last)
E_ITERATOR_GET_CLASS(iterator)->last(iterator);
}
gboolean
e_iterator_next (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->next)
return E_ITERATOR_GET_CLASS(iterator)->next(iterator);
else
return FALSE;
}
gboolean
e_iterator_prev (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->prev)
return E_ITERATOR_GET_CLASS(iterator)->prev(iterator);
else
return FALSE;
}
void
e_iterator_delete (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->delete)
E_ITERATOR_GET_CLASS(iterator)->delete(iterator);
}
void e_iterator_insert (EIterator *iterator,
const void *object,
gboolean before)
{
if (E_ITERATOR_GET_CLASS(iterator)->insert)
E_ITERATOR_GET_CLASS(iterator)->insert(iterator, object, before);
}
void
e_iterator_set (EIterator *iterator,
const void *object)
{
if (E_ITERATOR_GET_CLASS(iterator)->set)
E_ITERATOR_GET_CLASS(iterator)->set(iterator, object);
}
gboolean
e_iterator_is_valid (EIterator *iterator)
{
if (E_ITERATOR_GET_CLASS(iterator)->is_valid)
return E_ITERATOR_GET_CLASS(iterator)->is_valid(iterator);
else
return FALSE;
}
void
e_iterator_invalidate (EIterator *iterator)
{
g_return_if_fail (iterator != NULL);
g_return_if_fail (E_IS_ITERATOR (iterator));
g_signal_emit (iterator, e_iterator_signals [INVALIDATE], 0);
}
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