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gtk2/gtk/gtktreemodel.h
Havoc Pennington 5cd2993201 fix bug in here where prev pointer was set to the wrong thing 
2001-01-30  Havoc Pennington  <hp@redhat.com>

	* gtk/gtkliststore.c (gtk_list_store_insert_before): fix bug in
	here where prev pointer was set to the wrong thing

	* gtk/gtktreemodel.c (gtk_tree_path_is_ancestor): new function
	(gtk_tree_path_is_descendant): new function

	* gtk/gtkliststore.c (gtk_list_store_iter_n_children): return
	cached length
	(gtk_list_store_get_iter): don't modify iter if we can't get the
	path.

	* gtk/gtkliststore.h (struct _GtkListStore): cache the length

	* gtk/gtktreednd.h: add virtual function row_drop_possible() to
	GtkTreeDragDest

	* gtk/gtktreestore.c (copy_node_data): fix varargs type error that
	was causing segfault

	* gtk/gtktreedatalist.c (_gtk_tree_data_list_node_copy): set next
	pointer to NULL

	* gtk/gtktreestore.c (gtk_tree_store_append): fix memleak

	* gtk/gtkliststore.c (gtk_list_store_iter_next): don't modify iter
	on returning FALSE
	(gtk_list_store_iter_children): ditto
	(gtk_list_store_iter_nth_child): ditto
	(gtk_list_store_iter_nth_child): ditto
	(gtk_list_store_iter_parent): ditto

	* gtk/gtktreestore.c (gtk_tree_store_get_path): g_return_if_fail
	on iter->user_data != NULL instead of silently accepting it.
	(gtk_tree_store_iter_next): ditto. Also, don't modify iter unless
	we are returning TRUE.
	(gtk_tree_store_iter_children): ditto
	(gtk_tree_store_iter_nth_child): ditto
	(gtk_tree_store_iter_parent): ditto
	(gtk_tree_store_insert): remove handling of parent->user_data ==
	NULL, replace with parent == NULL

	* gtk/gtktreemodel.c (inserted_callback): put some fixes in here,
	and a comment explaining things

	* gtk/gtktreestore.c: add GtkTreeDragSource/GtkTreeDragDest
	interface support to GtkTreeStore.

	* gtk/gtktreemodel.c (gtk_tree_path_prev): didn't properly return
	FALSE if no prev, fix

	* gtk/gtktreeview.c (set_source_row): use a row reference
	(set_dest_row): use a row reference
2001-01-31 00:57:49 +00:00

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/* gtktreemodel.h
* 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.
*/
#ifndef __GTK_TREE_MODEL_H__
#define __GTK_TREE_MODEL_H__
#include <gtk/gtkobject.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GTK_TYPE_TREE_MODEL (gtk_tree_model_get_type ())
#define GTK_TREE_MODEL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TREE_MODEL, GtkTreeModel))
#define GTK_IS_TREE_MODEL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TREE_MODEL))
#define GTK_TREE_MODEL_GET_IFACE(obj) ((GtkTreeModelIface *)g_type_interface_peek (((GTypeInstance *)GTK_TREE_MODEL (obj))->g_class, GTK_TYPE_TREE_MODEL))
typedef struct _GtkTreeIter GtkTreeIter;
typedef struct _GtkTreePath GtkTreePath;
typedef struct _GtkTreeRowReference GtkTreeRowReference;
typedef struct _GtkTreeModel GtkTreeModel; /* Dummy typedef */
typedef struct _GtkTreeModelIface GtkTreeModelIface;
typedef enum
{
GTK_TREE_MODEL_ITERS_PERSIST = 1 << 0
} GtkTreeModelFlags;
struct _GtkTreeIter
{
gint stamp;
gpointer user_data;
gpointer user_data2;
gpointer user_data3;
};
struct _GtkTreeModelIface
{
GTypeInterface g_iface;
/* Signals */
/* Currently unimplemented as interfaces do not support signals yet, so
* objects implementing this interface need this. Later, it will be moved
* back here.
*/
void (* changed) (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter);
void (* inserted) (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter);
void (* child_toggled) (GtkTreeModel *tree_model,
GtkTreePath *path,
GtkTreeIter *iter);
void (* deleted) (GtkTreeModel *tree_model,
GtkTreePath *path);
void (* reordered) (GtkTreeModel *tree_model,
GtkTreePath *path,
gint *new_order);
/* VTable - not signals */
GtkTreeModelFlags (* get_flags) (GtkTreeModel *tree_model);
gint (* get_n_columns) (GtkTreeModel *tree_model);
GType (* get_column_type) (GtkTreeModel *tree_model,
gint index);
gboolean (* get_iter) (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path);
GtkTreePath *(* get_path) (GtkTreeModel *tree_model,
GtkTreeIter *iter);
void (* get_value) (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
gboolean (* iter_next) (GtkTreeModel *tree_model,
GtkTreeIter *iter);
gboolean (* iter_children) (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent);
gboolean (* iter_has_child) (GtkTreeModel *tree_model,
GtkTreeIter *iter);
gint (* iter_n_children) (GtkTreeModel *tree_model,
GtkTreeIter *iter);
gboolean (* iter_nth_child) (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n);
gboolean (* iter_parent) (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child);
void (* ref_iter) (GtkTreeModel *tree_model,
GtkTreeIter *iter);
void (* unref_iter) (GtkTreeModel *tree_model,
GtkTreeIter *iter);
};
/* GtkTreePath operations */
GtkTreePath *gtk_tree_path_new (void);
GtkTreePath *gtk_tree_path_new_from_string (gchar *path);
gchar *gtk_tree_path_to_string (GtkTreePath *path);
GtkTreePath *gtk_tree_path_new_root (void);
void gtk_tree_path_append_index (GtkTreePath *path,
gint index);
void gtk_tree_path_prepend_index (GtkTreePath *path,
gint index);
gint gtk_tree_path_get_depth (GtkTreePath *path);
gint *gtk_tree_path_get_indices (GtkTreePath *path);
void gtk_tree_path_free (GtkTreePath *path);
GtkTreePath *gtk_tree_path_copy (GtkTreePath *path);
gint gtk_tree_path_compare (const GtkTreePath *a,
const GtkTreePath *b);
void gtk_tree_path_next (GtkTreePath *path);
gboolean gtk_tree_path_prev (GtkTreePath *path);
gboolean gtk_tree_path_up (GtkTreePath *path);
void gtk_tree_path_down (GtkTreePath *path);
gboolean gtk_tree_path_is_ancestor (GtkTreePath *path,
GtkTreePath *descendant);
gboolean gtk_tree_path_is_descendant (GtkTreePath *path,
GtkTreePath *ancestor);
/* Row reference (an object that tracks model changes so it refers to the
* same row always; a path refers to a position, not a fixed row)
*/
GtkTreeRowReference *gtk_tree_row_reference_new (GtkTreeModel *model,
GtkTreePath *path);
/* returns NULL if the row was deleted or the model was destroyed. */
GtkTreePath *gtk_tree_row_reference_get_path (GtkTreeRowReference *reference);
void gtk_tree_row_reference_free (GtkTreeRowReference *reference);
/* GtkTreeIter operations */
GtkTreeIter *gtk_tree_iter_copy (GtkTreeIter *iter);
void gtk_tree_iter_free (GtkTreeIter *iter);
/* GtkTreeModel stuff */
GtkType gtk_tree_model_get_type (void) G_GNUC_CONST;
GtkTreeModelFlags gtk_tree_model_get_flags (GtkTreeModel *tree_model);
/* Column information */
gint gtk_tree_model_get_n_columns (GtkTreeModel *tree_model);
GType gtk_tree_model_get_column_type (GtkTreeModel *tree_model,
gint index);
/* Iterator movement */
gboolean gtk_tree_model_get_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreePath *path);
gboolean gtk_tree_model_get_first (GtkTreeModel *tree_model,
GtkTreeIter *iter);
GtkTreePath *gtk_tree_model_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter);
void gtk_tree_model_get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value);
gboolean gtk_tree_model_iter_next (GtkTreeModel *tree_model,
GtkTreeIter *iter);
gboolean gtk_tree_model_iter_children (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent);
gboolean gtk_tree_model_iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter);
gint gtk_tree_model_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter);
gboolean gtk_tree_model_iter_nth_child (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *parent,
gint n);
gboolean gtk_tree_model_iter_parent (GtkTreeModel *tree_model,
GtkTreeIter *iter,
GtkTreeIter *child);
void gtk_tree_model_ref_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter);
void gtk_tree_model_unref_iter (GtkTreeModel *tree_model,
GtkTreeIter *iter);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __GTK_TREE_MODEL_H__ */
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