gtk2/gtk/gtkliststore.c
Jonathan Blandford ef7b510f46 Got rid of GtkTreeNode, and changed it to GtkTreeIter. Added iterators
Wed Oct 25 20:40:25 2000  Jonathan Blandford  <jrb@redhat.com>

	* gtk/gtktreemodel.h: Got rid of GtkTreeNode, and changed it to
	GtkTreeIter.  Added iterators everywhere.

	* gtk/gtktreeviewcolumn.c: Changed to use the iterators.

	* gtk/gtktreeviewselection.c: Changed to use the iterators.

	* gtk/gtktreestore.c: Changed to use the iterators.

	* gtk/gtkliststore.c: Commented out the code.  Will convert to
	iterators tomorrow.

	* gtk/gtkmodelsimple.c: Commented out the code.  Will convert to
	iterators tomorrow.

	* gtk/treestoretest.c: Changed to use iterators.

	* demos/testgtk/main.c: Moved to use the new iterator system.
2000-10-26 00:36:47 +00:00

519 lines
14 KiB
C

/* gtkliststore.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* 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 <string.h>
#include "gtktreemodel.h"
#include "gtkliststore.h"
#include "gtktreedatalist.h"
#include "gtksignal.h"
#define G_SLIST(x) ((GSList *) x)
#if 0
enum {
CHANGED,
INSERTED,
CHILD_TOGGLED,
DELETED,
LAST_SIGNAL
};
static guint list_store_signals[LAST_SIGNAL] = { 0 };
static void gtk_list_store_init (GtkListStore *list_store);
static void gtk_list_store_class_init (GtkListStoreClass *class);
static void gtk_list_store_tree_model_init (GtkTreeModelIface *iface);
static gint gtk_list_store_get_n_columns (GtkTreeModel *tree_model);
static GtkTreeIter *gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreePath *path);
static GtkTreePath *gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static void gtk_list_store_iter_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
static gboolean gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static GtkTreeIter *gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gint gtk_list_store_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static GtkTreeIter *gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint n);
static GtkTreeIter *gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter);
GtkType
gtk_list_store_get_type (void)
{
static GtkType list_store_type = 0;
if (!list_store_type)
{
static const GTypeInfo list_store_info =
{
sizeof (GtkListStoreClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gtk_list_store_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GtkListStore),
0,
(GInstanceInitFunc) gtk_list_store_init,
};
static const GInterfaceInfo tree_model_info =
{
(GInterfaceInitFunc) gtk_list_store_tree_model_init,
NULL,
NULL
};
list_store_type = g_type_register_static (GTK_TYPE_OBJECT, "GtkListStore", &list_store_info, 0);
g_type_add_interface_static (list_store_type,
GTK_TYPE_TREE_MODEL,
&tree_model_info);
}
return list_store_type;
}
static void
gtk_list_store_class_init (GtkListStoreClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass*) class;
list_store_signals[CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, changed),
gtk_marshal_VOID__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GTK_TYPE_POINTER,
GTK_TYPE_POINTER);
list_store_signals[INSERTED] =
gtk_signal_new ("inserted",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, inserted),
gtk_marshal_VOID__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GTK_TYPE_POINTER,
GTK_TYPE_POINTER);
list_store_signals[CHILD_TOGGLED] =
gtk_signal_new ("child_toggled",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, child_toggled),
gtk_marshal_VOID__POINTER_POINTER,
GTK_TYPE_NONE, 2,
GTK_TYPE_POINTER,
GTK_TYPE_POINTER);
list_store_signals[DELETED] =
gtk_signal_new ("deleted",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, deleted),
gtk_marshal_VOID__POINTER,
GTK_TYPE_NONE, 1,
GTK_TYPE_POINTER);
gtk_object_class_add_signals (object_class, list_store_signals, LAST_SIGNAL);
}
static void
gtk_list_store_tree_model_init (GtkTreeModelIface *iface)
{
iface->get_n_columns = gtk_list_store_get_n_columns;
iface->get_iter = gtk_list_store_get_iter;
iface->get_path = gtk_list_store_get_path;
iface->iter_get_value = gtk_list_store_iter_get_value;
iface->iter_next = gtk_list_store_iter_next;
iface->iter_children = gtk_list_store_iter_children;
iface->iter_has_child = gtk_list_store_iter_has_child;
iface->iter_n_children = gtk_list_store_iter_n_children;
iface->iter_nth_child = gtk_list_store_iter_nth_child;
iface->iter_parent = gtk_list_store_iter_parent;
}
static void
gtk_list_store_init (GtkListStore *list_store)
{
list_store->root = NULL;
}
GtkObject *
gtk_list_store_new (void)
{
return GTK_OBJECT (gtk_type_new (gtk_list_store_get_type ()));
}
GtkObject *
gtk_list_store_new_with_types (gint n_columns,
...)
{
GtkObject *retval;
va_list args;
gint i;
g_return_val_if_fail (n_columns > 0, NULL);
retval = gtk_list_store_new ();
gtk_list_store_set_n_columns (GTK_LIST_STORE (retval),
n_columns);
va_start (args, n_columns);
for (i = 0; i < n_columns; i++)
gtk_list_store_set_column_type (GTK_LIST_STORE (retval),
i, va_arg (args, GType));
va_end (args);
return retval;
}
void
gtk_list_store_set_n_columns (GtkListStore *list_store,
gint n_columns)
{
GType *new_columns;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
if (list_store->n_columns == n_columns)
return;
new_columns = g_new0 (GType, n_columns);
if (list_store->column_headers)
{
/* copy the old header orders over */
if (n_columns >= list_store->n_columns)
memcpy (new_columns, list_store->column_headers, list_store->n_columns * sizeof (gchar *));
else
memcpy (new_columns, list_store->column_headers, n_columns * sizeof (GType));
g_free (list_store->column_headers);
}
list_store->column_headers = new_columns;
list_store->n_columns = n_columns;
}
void
gtk_list_store_set_column_type (GtkListStore *list_store,
gint column,
GType type)
{
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (column >=0 && column < list_store->n_columns);
list_store->column_headers[column] = type;
}
/* Fulfill the GtkTreeModel requirements */
static gint
gtk_list_store_get_n_columns (GtkTreeModel *tree_model)
{
g_return_val_if_fail (tree_model != NULL, 0);
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), 0);
return GTK_LIST_STORE (tree_model)->n_columns;
}
static GtkTreeIter *
gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreePath *path)
{
g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, NULL);
return (GtkTreeIter) g_slist_nth (G_SLIST (GTK_LIST_STORE (tree_model)->root),
gtk_tree_path_get_indices (path)[0]);
}
static GtkTreePath *
gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter iter)
{
GtkTreePath *retval;
GSList *list;
gint i = 0;
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), NULL);
for (list = G_SLIST (GTK_LIST_STORE (tree_model)->root); list; list = list->next)
{
i++;
if (list == G_SLIST (iter))
break;
}
if (list == NULL)
return NULL;
retval = gtk_tree_path_new ();
gtk_tree_path_append_index (retval, i);
return retval;
}
static void
gtk_list_store_iter_get_value (GtkTreeModel *tree_model,
GtkTreeIter iter,
gint column,
GValue *value)
{
GtkTreeDataList *list;
gint tmp_column = column;
g_return_if_fail (tree_model != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (tree_model));
g_return_if_fail (iter != NULL);
g_return_if_fail (column < GTK_LIST_STORE (tree_model)->n_columns);
list = G_SLIST (iter)->data;
while (tmp_column-- > 0 && list)
list = list->next;
g_return_if_fail (list != NULL);
gtk_tree_data_list_iter_to_value (list,
GTK_LIST_STORE (tree_model)->column_headers[column],
value);
}
static gboolean
gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
if (iter == NULL || *iter == NULL)
return FALSE;
*iter = (GtkTreeIter) G_SLIST (*iter)->next;
return (*iter != NULL);
}
static GtkTreeIter
gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter iter)
{
return NULL;
}
static gboolean
gtk_list_store_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter iter)
{
return FALSE;
}
static gint
gtk_list_store_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter iter)
{
return 0;
}
static GtkTreeIter
gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter iter,
gint n)
{
return NULL;
}
static GtkTreeIter
gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter iter)
{
return NULL;
}
/* Public accessors */
GtkTreeIter
gtk_list_store_iter_new (void)
{
GtkTreeIter retval = (GtkTreeIter) g_slist_alloc ();
return retval;
}
/* This is a somewhat inelegant function that does a lot of list
* manipulations on it's own.
*/
void
gtk_list_store_iter_set_cell (GtkListStore *list_store,
GtkTreeIter iter,
gint column,
GValue *value)
{
GtkTreeDataList *list;
GtkTreeDataList *prev;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
g_return_if_fail (column >= 0 && column < list_store->n_columns);
prev = list = G_SLIST (iter)->data;
while (list != NULL)
{
if (column == 0)
{
gtk_tree_data_list_value_to_iter (list, value);
return;
}
column--;
prev = list;
list = list->next;
}
if (G_SLIST (iter)->data == NULL)
{
G_SLIST (iter)->data = list = gtk_tree_data_list_alloc ();
list->next = NULL;
}
else
{
list = prev->next = gtk_tree_data_list_alloc ();
list->next = NULL;
}
while (column != 0)
{
list->next = gtk_tree_data_list_alloc ();
list = list->next;
list->next = NULL;
column --;
}
gtk_tree_data_list_value_to_iter (list, value);
}
void
gtk_list_store_iter_remove (GtkListStore *list_store,
GtkTreeIter iter)
{
/* FIXME: implement */
g_warning ("Remember to implement this function\n");
}
GtkTreeIter
gtk_list_store_iter_insert (GtkListStore *list_store,
gint position,
GtkTreeIter iter)
{
GSList *list;
g_return_val_if_fail (list_store != NULL, iter);
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), iter);
g_return_val_if_fail (iter != NULL, iter);
g_return_val_if_fail (position < 0, iter);
g_return_val_if_fail (G_SLIST (iter)->next == NULL, iter);
if (position == 0)
{
gtk_list_store_iter_prepend (list_store, iter);
return iter;
}
list = g_slist_nth (G_SLIST (list_store->root), position);
if (list)
{
G_SLIST (iter)->next = list->next;
list->next = G_SLIST (iter)->next;
}
return iter;
}
GtkTreeIter
gtk_list_store_iter_insert_before (GtkListStore *list_store,
GtkTreeIter sibling,
GtkTreeIter iter)
{
g_return_val_if_fail (list_store != NULL, iter);
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), iter);
g_return_val_if_fail (iter != NULL, iter);
/* FIXME: This is all wrong. This is actually insert_after */
if (sibling == NULL)
return gtk_list_store_iter_prepend (list_store, iter);
G_SLIST (iter)->next = G_SLIST (sibling)->next;
G_SLIST (sibling)->next = G_SLIST (iter);
return iter;
}
GtkTreeIter
gtk_list_store_iter_prepend (GtkListStore *list_store,
GtkTreeIter iter)
{
g_return_val_if_fail (list_store != NULL, iter);
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), iter);
g_return_val_if_fail (iter != NULL, iter);
G_SLIST (iter)->next = G_SLIST (list_store->root);
list_store->root = iter;
return iter;
}
GtkTreeIter
gtk_list_store_iter_append (GtkListStore *list_store,
GtkTreeIter iter)
{
GSList *list;
g_return_val_if_fail (list_store != NULL, iter);
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), iter);
g_return_val_if_fail (iter != NULL, iter);
g_return_val_if_fail (G_SLIST (iter)->next == NULL, iter);
list = g_slist_last (G_SLIST (list_store->root));
if (list == NULL)
list_store->root = iter;
else
list->next = G_SLIST (iter);
return iter;
}
GtkTreeIter
gtk_list_store_iter_get_root (GtkListStore *list_store)
{
g_return_val_if_fail (list_store != NULL, NULL);
g_return_val_if_fail (GTK_IS_LIST_STORE (list_store), NULL);
return (GtkTreeIter *) list_store->root;
}
#endif