/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-tree-model.h
* Copyright 2000, 2001, Ximian, Inc.
*
* Authors:
* Chris Lahey <clahey@ximian.com>
* Chris Toshok <toshok@ximian.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License, version 2, as published by the Free Software Foundation.
*
* 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 _E_TREE_MODEL_H_
#define _E_TREE_MODEL_H_
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <glib-object.h>
G_BEGIN_DECLS
#define E_TREE_MODEL_TYPE (e_tree_model_get_type ())
#define E_TREE_MODEL(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), E_TREE_MODEL_TYPE, ETreeModel))
#define E_TREE_MODEL_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), E_TREE_MODEL_TYPE, ETreeModelClass))
#define E_IS_TREE_MODEL(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), E_TREE_MODEL_TYPE))
#define E_IS_TREE_MODEL_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), E_TREE_MODEL_TYPE))
#define E_TREE_MODEL_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), E_TREE_MODEL_TYPE, ETreeModelClass))
typedef void * ETreePath;
typedef struct ETreeModel ETreeModel;
typedef struct ETreeModelClass ETreeModelClass;
typedef gint (*ETreePathCompareFunc)(ETreeModel *model, ETreePath path1, ETreePath path2);
typedef gboolean (*ETreePathFunc)(ETreeModel *model, ETreePath path, gpointer data);
struct ETreeModel {
GObject base;
};
struct ETreeModelClass {
GObjectClass parent_class;
/*
* Virtual methods
*/
ETreePath (*get_root) (ETreeModel *etm);
ETreePath (*get_parent) (ETreeModel *etm, ETreePath node);
ETreePath (*get_first_child) (ETreeModel *etm, ETreePath node);
ETreePath (*get_last_child) (ETreeModel *etm, ETreePath node);
ETreePath (*get_next) (ETreeModel *etm, ETreePath node);
ETreePath (*get_prev) (ETreeModel *etm, ETreePath node);
gboolean (*is_root) (ETreeModel *etm, ETreePath node);
gboolean (*is_expandable) (ETreeModel *etm, ETreePath node);
guint (*get_children) (ETreeModel *etm, ETreePath node, ETreePath **paths);
guint (*depth) (ETreeModel *etm, ETreePath node);
GdkPixbuf *(*icon_at) (ETreeModel *etm, ETreePath node);
gboolean (*get_expanded_default) (ETreeModel *etm);
gint (*column_count) (ETreeModel *etm);
gboolean (*has_save_id) (ETreeModel *etm);
gchar *(*get_save_id) (ETreeModel *etm, ETreePath node);
gboolean (*has_get_node_by_id) (ETreeModel *etm);
ETreePath (*get_node_by_id) (ETreeModel *etm, const char *save_id);
gboolean (*has_change_pending) (ETreeModel *etm);
/*
* ETable analogs
*/
void *(*value_at) (ETreeModel *etm, ETreePath node, int col);
void (*set_value_at) (ETreeModel *etm, ETreePath node, int col, const void *val);
gboolean (*is_editable) (ETreeModel *etm, ETreePath node, int col);
void *(*duplicate_value) (ETreeModel *etm, int col, const void *value);
void (*free_value) (ETreeModel *etm, int col, void *value);
void *(*initialize_value) (ETreeModel *etm, int col);
gboolean (*value_is_empty) (ETreeModel *etm, int col, const void *value);
char *(*value_to_string) (ETreeModel *etm, int col, const void *value);
/*
* Signals
*/
/* During node_remove, the ETreePath of the child is removed
* from the tree but is still a valid ETreePath. At
* node_deleted, the ETreePath is no longer valid.
*/
void (*pre_change) (ETreeModel *etm);
void (*no_change) (ETreeModel *etm);
void (*node_changed) (ETreeModel *etm, ETreePath node);
void (*node_data_changed) (ETreeModel *etm, ETreePath node);
void (*node_col_changed) (ETreeModel *etm, ETreePath node, int col);
void (*node_inserted) (ETreeModel *etm, ETreePath parent, ETreePath inserted_node);
void (*node_removed) (ETreeModel *etm, ETreePath parent, ETreePath removed_node, int old_position);
void (*node_deleted) (ETreeModel *etm, ETreePath deleted_node);
/* This signal requests that any viewers of the tree that
* collapse and expand nodes collapse this node.
*/
void (*node_request_collapse) (ETreeModel *etm, ETreePath node);
};
GType e_tree_model_get_type (void);
ETreeModel *e_tree_model_new (void);
/* tree traversal operations */
ETreePath e_tree_model_get_root (ETreeModel *etree);
ETreePath e_tree_model_node_get_parent (ETreeModel *etree,
ETreePath path);
ETreePath e_tree_model_node_get_first_child (ETreeModel *etree,
ETreePath path);
ETreePath e_tree_model_node_get_last_child (ETreeModel *etree,
ETreePath path);
ETreePath e_tree_model_node_get_next (ETreeModel *etree,
ETreePath path);
ETreePath e_tree_model_node_get_prev (ETreeModel *etree,
ETreePath path);
/* node accessors */
gboolean e_tree_model_node_is_root (ETreeModel *etree,
ETreePath path);
gboolean e_tree_model_node_is_expandable (ETreeModel *etree,
ETreePath path);
guint e_tree_model_node_get_children (ETreeModel *etree,
ETreePath path,
ETreePath **paths);
guint e_tree_model_node_depth (ETreeModel *etree,
ETreePath path);
GdkPixbuf *e_tree_model_icon_at (ETreeModel *etree,
ETreePath path);
gboolean e_tree_model_get_expanded_default (ETreeModel *model);
gint e_tree_model_column_count (ETreeModel *model);
gboolean e_tree_model_has_save_id (ETreeModel *model);
gchar *e_tree_model_get_save_id (ETreeModel *model,
ETreePath node);
gboolean e_tree_model_has_get_node_by_id (ETreeModel *model);
ETreePath e_tree_model_get_node_by_id (ETreeModel *model,
const char *save_id);
gboolean e_tree_model_has_change_pending (ETreeModel *model);
void *e_tree_model_value_at (ETreeModel *etree,
ETreePath node,
int col);
void e_tree_model_set_value_at (ETreeModel *etree,
ETreePath node,
int col,
const void *val);
gboolean e_tree_model_node_is_editable (ETreeModel *etree,
ETreePath node,
int col);
void *e_tree_model_duplicate_value (ETreeModel *etree,
int col,
const void *value);
void e_tree_model_free_value (ETreeModel *etree,
int col,
void *value);
void *e_tree_model_initialize_value (ETreeModel *etree,
int col);
gboolean e_tree_model_value_is_empty (ETreeModel *etree,
int col,
const void *value);
char *e_tree_model_value_to_string (ETreeModel *etree,
int col,
const void *value);
/* depth first traversal of path's descendents, calling func on each one */
void e_tree_model_node_traverse (ETreeModel *model,
ETreePath path,
ETreePathFunc func,
gpointer data);
void e_tree_model_node_traverse_preorder (ETreeModel *model,
ETreePath path,
ETreePathFunc func,
gpointer data);
ETreePath e_tree_model_node_find (ETreeModel *model,
ETreePath path,
ETreePath end_path,
gboolean forward_direction,
ETreePathFunc func,
gpointer data);
/*
** Routines for emitting signals on the ETreeModel
*/
void e_tree_model_pre_change (ETreeModel *tree_model);
void e_tree_model_no_change (ETreeModel *tree_model);
void e_tree_model_node_changed (ETreeModel *tree_model,
ETreePath node);
void e_tree_model_node_data_changed (ETreeModel *tree_model,
ETreePath node);
void e_tree_model_node_col_changed (ETreeModel *tree_model,
ETreePath node,
int col);
void e_tree_model_node_inserted (ETreeModel *tree_model,
ETreePath parent_node,
ETreePath inserted_node);
void e_tree_model_node_removed (ETreeModel *tree_model,
ETreePath parent_node,
ETreePath removed_node,
int old_position);
void e_tree_model_node_deleted (ETreeModel *tree_model,
ETreePath deleted_node);
void e_tree_model_node_request_collapse (ETreeModel *tree_model,
ETreePath deleted_node);
G_END_DECLS
#endif /* _E_TREE_MODEL_H */
