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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 Helix Code, Inc.
* Copyright (C) 1999 The Free Software Foundation
*/
#include <config.h>
#include <gtk/gtk.h>
#include <e-card-list-iterator.h>
#include <e-card-list.h>
static void e_card_list_iterator_init (ECardListIterator *card);
static void e_card_list_iterator_class_init (ECardListIteratorClass *klass);
static void e_card_list_iterator_invalidate (ECardIterator *iterator);
static gboolean e_card_list_iterator_is_valid (ECardIterator *iterator);
static void e_card_list_iterator_set (ECardIterator *iterator,
void *object);
static void e_card_list_iterator_delete (ECardIterator *iterator);
static gboolean e_card_list_iterator_prev (ECardIterator *iterator);
static gboolean e_card_list_iterator_next (ECardIterator *iterator);
static void e_card_list_iterator_reset (ECardIterator *iterator);
static void *e_card_list_iterator_get (ECardIterator *iterator);
static void e_card_list_iterator_destroy (GtkObject *object);
#define PARENT_TYPE (e_card_iterator_get_type ())
static GtkObjectClass *parent_class;
#define PARENT_CLASS (E_CARD_LIST_ITERATOR_CLASS(parent_class))
/**
* e_card_list_iterator_get_type:
* @void:
*
* Registers the &ECardListIterator class if necessary, and returns the type ID
* associated to it.
*
* Return value: The type ID of the &ECardListIterator class.
**/
GtkType
e_card_list_iterator_get_type (void)
{
static GtkType type = 0;
if (!type) {
GtkTypeInfo info = {
"ECardListIterator",
sizeof (ECardListIterator),
sizeof (ECardListIteratorClass),
(GtkClassInitFunc) e_card_list_iterator_class_init,
(GtkObjectInitFunc) e_card_list_iterator_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
type = gtk_type_unique (PARENT_TYPE, &info);
}
return type;
}
static void
e_card_list_iterator_class_init (ECardListIteratorClass *klass)
{
GtkObjectClass *object_class;
ECardIteratorClass *iterator_class;
object_class = GTK_OBJECT_CLASS(klass);
iterator_class = E_CARD_ITERATOR_CLASS(klass);
parent_class = gtk_type_class (PARENT_TYPE);
object_class->destroy = e_card_list_iterator_destroy;
iterator_class->invalidate = e_card_list_iterator_invalidate;
iterator_class->get = e_card_list_iterator_get;
iterator_class->reset = e_card_list_iterator_reset;
iterator_class->next = e_card_list_iterator_next;
iterator_class->prev = e_card_list_iterator_prev;
iterator_class->delete = e_card_list_iterator_delete;
iterator_class->set = e_card_list_iterator_set;
iterator_class->is_valid = e_card_list_iterator_is_valid;
}
/**
* e_card_list_iterator_init:
*/
static void
e_card_list_iterator_init (ECardListIterator *card)
{
}
ECardIterator *
e_card_list_iterator_new (ECardList *list)
{
ECardListIterator *iterator = gtk_type_new(e_card_list_iterator_get_type());
iterator->list = list;
gtk_object_ref(GTK_OBJECT(list));
iterator->iterator = list->list;
return E_CARD_ITERATOR(iterator);
}
/*
* Virtual functions:
*/
static void
e_card_list_iterator_destroy (GtkObject *object)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(object);
e_card_list_remove_iterator(iterator->list, E_CARD_ITERATOR(iterator));
gtk_object_unref(GTK_OBJECT(iterator->list));
}
static void *
e_card_list_iterator_get (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
if (iterator->iterator)
return iterator->iterator->data;
else
return NULL;
}
static void
e_card_list_iterator_reset (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
iterator->iterator = iterator->list->list;
}
static gboolean
e_card_list_iterator_next (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
if (iterator->iterator)
iterator->iterator = g_list_next(iterator->iterator);
return (iterator->iterator != NULL);
}
static gboolean
e_card_list_iterator_prev (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
if (iterator->iterator)
iterator->iterator = g_list_previous(iterator->iterator);
return (iterator->iterator != NULL);
}
static void
e_card_list_iterator_delete (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
if (iterator->iterator) {
GList *temp = iterator->iterator->next;
if (iterator->list->free)
iterator->list->free(iterator->iterator->data, iterator->list->closure);
iterator->list->list = g_list_remove_link(iterator->list->list, iterator->iterator);
iterator->iterator = temp;
e_card_list_invalidate_iterators(iterator->list, E_CARD_ITERATOR(iterator));
}
}
static void
e_card_list_iterator_set (ECardIterator *_iterator,
void *object)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
if (iterator->iterator) {
if (iterator->list->free)
iterator->list->free(iterator->iterator->data, iterator->list->closure);
if (iterator->list->copy)
iterator->iterator->data = iterator->list->copy(object, iterator->list->closure);
else
iterator->iterator->data = object;
}
}
static gboolean
e_card_list_iterator_is_valid (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
return iterator->iterator != NULL;
}
static void
e_card_list_iterator_invalidate (ECardIterator *_iterator)
{
ECardListIterator *iterator = E_CARD_LIST_ITERATOR(_iterator);
iterator->iterator = NULL;
}
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