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gtk2/gtk/gtkliststore.c
Jonathan Blandford c9e39436b9 Changed to have the list become non-italic when the demo window is 
Sat Nov 18 18:00:17 2000  Jonathan Blandford  <jrb@redhat.com>

	* demos/gtk-demo/main.c: Changed to have the list become
	non-italic when the demo window is destroyed through an external
	event (like a close button).  Doing so found three bugs in the
	widget.

	* demos/gtk-demo/*.c (do_*): Changed to return the toplevel window.

	* gtk/gtkliststore.c (gtk_list_store_set_cell): emit "change" when
	we actually set the cell.

	* gtk/gtktreestore.c (gtk_tree_store_set_cell): ditto

	* gtk/gtktreeselection.c (gtk_tree_selection_real_select_node):
	free a leaked path.  Thanks memprof.
2000-11-18 23:59:30 +00:00

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/* 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)
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 guint gtk_list_store_get_flags (GtkTreeModel *tree_model);
static gint gtk_list_store_get_n_columns (GtkTreeModel *tree_model);
static GType gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index);
static gboolean gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path);
static GtkTreePath *gtk_list_store_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static void gtk_list_store_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
static gboolean gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter);
static gboolean gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent);
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 gboolean gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n);
static gboolean gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child);
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__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_ITER);
list_store_signals[INSERTED] =
gtk_signal_new ("inserted",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, inserted),
gtk_marshal_VOID__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_ITER);
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__BOXED_BOXED,
G_TYPE_NONE, 2,
GTK_TYPE_TREE_PATH,
GTK_TYPE_TREE_ITER);
list_store_signals[DELETED] =
gtk_signal_new ("deleted",
GTK_RUN_FIRST,
GTK_CLASS_TYPE (object_class),
GTK_SIGNAL_OFFSET (GtkListStoreClass, deleted),
gtk_marshal_VOID__BOXED,
G_TYPE_NONE, 1,
GTK_TYPE_TREE_PATH);
gtk_object_class_add_signals (object_class, list_store_signals, LAST_SIGNAL);
}
static void
gtk_list_store_tree_model_init (GtkTreeModelIface *iface)
{
iface->get_flags = gtk_list_store_get_flags;
iface->get_n_columns = gtk_list_store_get_n_columns;
iface->get_column_type = gtk_list_store_get_column_type;
iface->get_iter = gtk_list_store_get_iter;
iface->get_path = gtk_list_store_get_path;
iface->get_value = gtk_list_store_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;
list_store->stamp = g_random_int ();
}
GtkListStore *
gtk_list_store_new (void)
{
return GTK_LIST_STORE (gtk_type_new (gtk_list_store_get_type ()));
}
GtkListStore *
gtk_list_store_new_with_types (gint n_columns,
...)
{
GtkListStore *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 (retval, n_columns);
va_start (args, n_columns);
for (i = 0; i < n_columns; i++)
gtk_list_store_set_column_type (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));
g_return_if_fail (n_columns > 0);
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 guint
gtk_list_store_get_flags (GtkTreeModel *tree_model)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), 0);
return GTK_TREE_MODEL_ITERS_PERSIST;
}
static gint
gtk_list_store_get_n_columns (GtkTreeModel *tree_model)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), 0);
return GTK_LIST_STORE (tree_model)->n_columns;
}
static GType
gtk_list_store_get_column_type (GtkTreeModel *tree_model,
gint index)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), G_TYPE_INVALID);
g_return_val_if_fail (index < GTK_LIST_STORE (tree_model)->n_columns &&
index >= 0, G_TYPE_INVALID);
return GTK_LIST_STORE (tree_model)->column_headers[index];
}
static gboolean
gtk_list_store_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), FALSE);
g_return_val_if_fail (gtk_tree_path_get_depth (path) > 0, FALSE);
iter->stamp = GTK_LIST_STORE (tree_model)->stamp;
iter->tree_node = g_slist_nth (G_SLIST (GTK_LIST_STORE (tree_model)->root),
gtk_tree_path_get_indices (path)[0]);
return iter->tree_node != NULL;
}
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);
g_return_val_if_fail (iter->stamp == GTK_LIST_STORE (tree_model)->stamp, NULL);
for (list = G_SLIST (GTK_LIST_STORE (tree_model)->root); list; list = list->next)
{
if (list == G_SLIST (iter->tree_node))
break;
i++;
}
if (list == NULL)
return NULL;
retval = gtk_tree_path_new ();
gtk_tree_path_append_index (retval, i);
return retval;
}
static void
gtk_list_store_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value)
{
GtkTreeDataList *list;
gint tmp_column = column;
g_return_if_fail (GTK_IS_LIST_STORE (tree_model));
g_return_if_fail (column < GTK_LIST_STORE (tree_model)->n_columns);
g_return_if_fail (GTK_LIST_STORE (tree_model)->stamp == iter->stamp);
list = G_SLIST (iter->tree_node)->data;
while (tmp_column-- > 0 && list)
list = list->next;
if (list == NULL)
g_value_init (value, GTK_LIST_STORE (tree_model)->column_headers[column]);
else
_gtk_tree_data_list_node_to_value (list,
GTK_LIST_STORE (tree_model)->column_headers[column],
value);
}
static gboolean
gtk_list_store_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), FALSE);
g_return_val_if_fail (GTK_LIST_STORE (tree_model)->stamp == iter->stamp, FALSE);
iter->tree_node = G_SLIST (iter->tree_node)->next;
return (iter->tree_node != NULL);
}
static gboolean
gtk_list_store_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent)
{
iter->stamp = 0;
iter->tree_node = NULL;
return FALSE;
}
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)
{
if (iter == NULL)
return g_slist_length (G_SLIST (GTK_LIST_STORE (tree_model)->root));
return 0;
}
static gboolean
gtk_list_store_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n)
{
g_return_val_if_fail (GTK_IS_LIST_STORE (tree_model), FALSE);
if (parent)
{
g_return_val_if_fail (iter->stamp == GTK_LIST_STORE (tree_model)->stamp, FALSE);
iter->stamp = 0;
iter->tree_node = NULL;
return FALSE;
}
iter->tree_node = g_slist_nth (G_SLIST (GTK_LIST_STORE (tree_model)->root), n);
if (iter->tree_node)
iter->stamp = GTK_LIST_STORE (tree_model)->stamp;
else
iter->stamp = 0;
return (iter->tree_node != NULL);
}
static gboolean
gtk_list_store_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child)
{
iter->stamp = 0;
iter->tree_node = NULL;
return FALSE;
}
/* Public accessors */
/* This is a somewhat inelegant function that does a lot of list
* manipulations on it's own.
*/
void
gtk_list_store_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->tree_node)->data;
while (list != NULL)
{
if (column == 0)
{
_gtk_tree_data_list_value_to_node (list, value);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"changed",
NULL, iter);
return;
}
column--;
prev = list;
list = list->next;
}
if (G_SLIST (iter->tree_node)->data == NULL)
{
G_SLIST (iter->tree_node)->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_node (list, value);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"changed",
NULL, iter);
}
void
gtk_list_store_remove (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkTreePath *path;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
if (G_SLIST (iter->tree_node)->data)
_gtk_tree_data_list_free ((GtkTreeDataList *) G_SLIST (iter->tree_node)->data,
list_store->column_headers);
path = gtk_list_store_get_path (GTK_TREE_MODEL (list_store), iter);
list_store->root = g_slist_remove_link (G_SLIST (list_store->root),
G_SLIST (iter->tree_node));
list_store->stamp ++;
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"deleted",
path);
gtk_tree_path_free (path);
}
void
gtk_list_store_insert (GtkListStore *list_store,
GtkTreeIter *iter,
gint position)
{
GSList *list;
GtkTreePath *path;
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 (position < 0);
if (position == 0)
{
gtk_list_store_prepend (list_store, iter);
return;
}
iter->stamp = list_store->stamp;
iter->tree_node = g_slist_alloc ();
list = g_slist_nth (G_SLIST (list_store->root), position - 1);
if (list)
{
G_SLIST (iter->tree_node)->next = list->next;
list->next = G_SLIST (iter->tree_node)->next;
}
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, position);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_insert_before (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreeIter *sibling)
{
GtkTreePath *path;
GSList *list, *prev;
gint i = 0;
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 (G_SLIST (iter)->next == NULL);
if (sibling == NULL)
{
gtk_list_store_append (list_store, iter);
return;
}
iter->stamp = list_store->stamp;
iter->tree_node = g_slist_alloc ();
prev = list = list_store->root;
while (list && list != sibling->tree_node)
{
prev = list;
list = list->next;
i++;
}
if (prev)
{
prev->next = iter->tree_node;
}
else
{
G_SLIST (iter->tree_node)->next = list_store->root;
list_store->root = iter->tree_node;
}
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_insert_after (GtkListStore *list_store,
GtkTreeIter *iter,
GtkTreeIter *sibling)
{
GtkTreePath *path;
GSList *list;
gint i = 0;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter == NULL);
if (sibling)
g_return_if_fail (sibling->stamp == list_store->stamp);
if (sibling == NULL)
{
gtk_list_store_prepend (list_store, iter);
return;
}
for (list = list_store->root; list && list != sibling->tree_node; list = list->next)
i++;
g_return_if_fail (list != NULL);
iter->stamp = list_store->stamp;
iter->tree_node = g_slist_alloc ();
G_SLIST (iter->tree_node)->next = G_SLIST (sibling->tree_node)->next;
G_SLIST (sibling)->next = G_SLIST (iter);
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_prepend (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkTreePath *path;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
iter->stamp = list_store->stamp;
iter->tree_node = g_slist_alloc ();
G_SLIST (iter->tree_node)->next = G_SLIST (list_store->root);
list_store->root = iter->tree_node;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, 0);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
void
gtk_list_store_append (GtkListStore *list_store,
GtkTreeIter *iter)
{
GtkTreePath *path;
GSList *list, *prev;
gint i = 0;
g_return_if_fail (list_store != NULL);
g_return_if_fail (GTK_IS_LIST_STORE (list_store));
g_return_if_fail (iter != NULL);
iter->stamp = list_store->stamp;
iter->tree_node = g_slist_alloc ();
prev = list = list_store->root;
while (list)
{
prev = list;
list = list->next;
i++;
}
if (prev)
prev->next = iter->tree_node;
else
list_store->root = iter->tree_node;
path = gtk_tree_path_new ();
gtk_tree_path_append_index (path, i);
gtk_signal_emit_by_name (GTK_OBJECT (list_store),
"inserted",
path, iter);
gtk_tree_path_free (path);
}
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