diff options
Diffstat (limited to 'widgets/table/e-tree-model.c')
| -rw-r--r-- | widgets/table/e-tree-model.c | 1092 |
1 files changed, 0 insertions, 1092 deletions
diff --git a/widgets/table/e-tree-model.c b/widgets/table/e-tree-model.c deleted file mode 100644 index 13f203974f..0000000000 --- a/widgets/table/e-tree-model.c +++ /dev/null @@ -1,1092 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* - * e-tree-model.c - * 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. - */ - -#include <config.h> - -#include <stdio.h> -#include <errno.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> - -#include <gnome-xml/parser.h> -#include <gnome-xml/xmlmemory.h> - -#include <gtk/gtksignal.h> -#include "gal/util/e-util.h" -#include "gal/util/e-xml-utils.h" -#include "e-tree-model.h" - -#define ETM_CLASS(e) ((ETreeModelClass *)((GtkObject *)e)->klass) - -#define PARENT_TYPE (gtk_object_get_type()) - -static GtkObjectClass *parent_class; - -enum { - PRE_CHANGE, - NO_CHANGE, - NODE_CHANGED, - NODE_DATA_CHANGED, - NODE_COL_CHANGED, - NODE_INSERTED, - NODE_REMOVED, - NODE_DELETED, - NODE_REQUEST_COLLAPSE, - LAST_SIGNAL -}; - -static guint e_tree_model_signals [LAST_SIGNAL] = {0, }; - - -static void -e_tree_model_class_init (GtkObjectClass *klass) -{ - ETreeModelClass *tree_class = (ETreeModelClass *) klass; - - parent_class = gtk_type_class (PARENT_TYPE); - - e_tree_model_signals [PRE_CHANGE] = - gtk_signal_new ("pre_change", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, pre_change), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - e_tree_model_signals [NO_CHANGE] = - gtk_signal_new ("no_change", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, no_change), - gtk_marshal_NONE__NONE, - GTK_TYPE_NONE, 0); - - e_tree_model_signals [NODE_CHANGED] = - gtk_signal_new ("node_changed", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_changed), - gtk_marshal_NONE__POINTER, - GTK_TYPE_NONE, 1, GTK_TYPE_POINTER); - - e_tree_model_signals [NODE_DATA_CHANGED] = - gtk_signal_new ("node_data_changed", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_data_changed), - gtk_marshal_NONE__POINTER, - GTK_TYPE_NONE, 1, GTK_TYPE_POINTER); - - e_tree_model_signals [NODE_COL_CHANGED] = - gtk_signal_new ("node_col_changed", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_col_changed), - gtk_marshal_NONE__POINTER_INT, - GTK_TYPE_NONE, 2, GTK_TYPE_POINTER, GTK_TYPE_INT); - - e_tree_model_signals [NODE_INSERTED] = - gtk_signal_new ("node_inserted", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_inserted), - gtk_marshal_NONE__POINTER_POINTER, - GTK_TYPE_NONE, 2, GTK_TYPE_POINTER, GTK_TYPE_POINTER); - - e_tree_model_signals [NODE_REMOVED] = - gtk_signal_new ("node_removed", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_removed), - e_marshal_NONE__POINTER_POINTER_INT, - GTK_TYPE_NONE, 3, GTK_TYPE_POINTER, GTK_TYPE_POINTER, GTK_TYPE_INT); - - e_tree_model_signals [NODE_DELETED] = - gtk_signal_new ("node_deleted", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_deleted), - gtk_marshal_NONE__POINTER, - GTK_TYPE_NONE, 1, GTK_TYPE_POINTER); - - e_tree_model_signals [NODE_REQUEST_COLLAPSE] = - gtk_signal_new ("node_request_collapse", - GTK_RUN_LAST, - E_OBJECT_CLASS_TYPE (klass), - GTK_SIGNAL_OFFSET (ETreeModelClass, node_request_collapse), - gtk_marshal_NONE__POINTER, - GTK_TYPE_NONE, 1, GTK_TYPE_POINTER); - - E_OBJECT_CLASS_ADD_SIGNALS (klass, e_tree_model_signals, LAST_SIGNAL); - - tree_class->get_root = NULL; - - tree_class->get_parent = NULL; - tree_class->get_first_child = NULL; - tree_class->get_last_child = NULL; - tree_class->get_next = NULL; - tree_class->get_prev = NULL; - - tree_class->is_root = NULL; - tree_class->is_expandable = NULL; - tree_class->get_children = NULL; - tree_class->depth = NULL; - - tree_class->icon_at = NULL; - - tree_class->get_expanded_default = NULL; - tree_class->column_count = NULL; - - tree_class->has_save_id = NULL; - tree_class->get_save_id = NULL; - tree_class->has_get_node_by_id = NULL; - tree_class->get_node_by_id = NULL; - - tree_class->has_change_pending = NULL; - - tree_class->value_at = NULL; - tree_class->set_value_at = NULL; - tree_class->is_editable = NULL; - - tree_class->duplicate_value = NULL; - tree_class->free_value = NULL; - tree_class->initialize_value = NULL; - tree_class->value_is_empty = NULL; - tree_class->value_to_string = NULL; - - tree_class->pre_change = NULL; - tree_class->no_change = NULL; - tree_class->node_changed = NULL; - tree_class->node_data_changed = NULL; - tree_class->node_col_changed = NULL; - tree_class->node_inserted = NULL; - tree_class->node_removed = NULL; - tree_class->node_deleted = NULL; - tree_class->node_request_collapse = NULL; -} - -static void -e_tree_init (GtkObject *object) -{ -} - -E_MAKE_TYPE(e_tree_model, "ETreeModel", ETreeModel, e_tree_model_class_init, e_tree_init, PARENT_TYPE) - - -/* signals */ - -/** - * e_tree_model_node_changed: - * @tree_model: - * @node: - * - * - * - * Return value: - **/ -void -e_tree_model_pre_change (ETreeModel *tree_model) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [PRE_CHANGE]); -} - -/** - * e_tree_model_node_changed: - * @tree_model: - * @node: - * - * - * - * Return value: - **/ -void -e_tree_model_no_change (ETreeModel *tree_model) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NO_CHANGE]); -} - -/** - * e_tree_model_node_changed: - * @tree_model: - * @node: - * - * - * - * Return value: - **/ -void -e_tree_model_node_changed (ETreeModel *tree_model, ETreePath node) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_CHANGED], node); -} - -/** - * e_tree_model_node_data_changed: - * @tree_model: - * @node: - * - * - * - * Return value: - **/ -void -e_tree_model_node_data_changed (ETreeModel *tree_model, ETreePath node) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_DATA_CHANGED], node); -} - -/** - * e_tree_model_node_col_changed: - * @tree_model: - * @node: - * - * - * - * Return value: - **/ -void -e_tree_model_node_col_changed (ETreeModel *tree_model, ETreePath node, int col) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_COL_CHANGED], node, col); -} - -/** - * e_tree_model_node_inserted: - * @tree_model: - * @parent_node: - * @inserted_node: - * - * - **/ -void -e_tree_model_node_inserted (ETreeModel *tree_model, - ETreePath parent_node, - ETreePath inserted_node) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_INSERTED], - parent_node, inserted_node); -} - -/** - * e_tree_model_node_removed: - * @tree_model: - * @parent_node: - * @removed_node: - * - * - **/ -void -e_tree_model_node_removed (ETreeModel *tree_model, ETreePath parent_node, ETreePath removed_node, int old_position) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_REMOVED], - parent_node, removed_node, old_position); -} - -/** - * e_tree_model_node_deleted: - * @tree_model: - * @deleted_node: - * - * - **/ -void -e_tree_model_node_deleted (ETreeModel *tree_model, ETreePath deleted_node) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_DELETED], - deleted_node); -} - -/** - * e_tree_model_node_request_collapse: - * @tree_model: - * @collapsed_node: - * - * - **/ -void -e_tree_model_node_request_collapse (ETreeModel *tree_model, ETreePath collapsed_node) -{ - g_return_if_fail (tree_model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (tree_model)); - - gtk_signal_emit (GTK_OBJECT (tree_model), - e_tree_model_signals [NODE_REQUEST_COLLAPSE], - collapsed_node); -} - - - -/** - * e_tree_model_new - * - * XXX docs here. - * - * return values: a newly constructed ETreeModel. - */ -ETreeModel * -e_tree_model_new () -{ - ETreeModel *et; - - et = gtk_type_new (e_tree_model_get_type ()); - - return et; -} - -/** - * e_tree_model_get_root - * @etree: the ETreeModel of which we want the root node. - * - * Accessor for the root node of @etree. - * - * return values: the ETreePath corresponding to the root node. - */ -ETreePath -e_tree_model_get_root (ETreeModel *etree) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_root) - return ETM_CLASS(etree)->get_root(etree); - else - return NULL; -} - -/** - * e_tree_model_node_get_parent: - * @etree: - * @path: - * - * - * - * Return value: - **/ -ETreePath -e_tree_model_node_get_parent (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail(etree != NULL, NULL); - if (ETM_CLASS(etree)->get_parent) - return ETM_CLASS(etree)->get_parent(etree, node); - else - return NULL; -} - -/** - * e_tree_model_node_get_first_child: - * @etree: - * @node: - * - * - * - * Return value: - **/ -ETreePath -e_tree_model_node_get_first_child (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_first_child) - return ETM_CLASS(etree)->get_first_child(etree, node); - else - return NULL; -} - -/** - * e_tree_model_node_get_last_child: - * @etree: - * @node: - * - * - * - * Return value: - **/ -ETreePath -e_tree_model_node_get_last_child (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_last_child) - return ETM_CLASS(etree)->get_last_child(etree, node); - else - return NULL; -} - - -/** - * e_tree_model_node_get_next: - * @etree: - * @node: - * - * - * - * Return value: - **/ -ETreePath -e_tree_model_node_get_next (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_next) - return ETM_CLASS(etree)->get_next(etree, node); - else - return NULL; -} - -/** - * e_tree_model_node_get_prev: - * @etree: - * @node: - * - * - * - * Return value: - **/ -ETreePath -e_tree_model_node_get_prev (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_prev) - return ETM_CLASS(etree)->get_prev(etree, node); - else - return NULL; -} - -/** - * e_tree_model_node_is_root: - * @etree: - * @path: - * - * - * - * Return value: - **/ -gboolean -e_tree_model_node_is_root (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail(etree != NULL, FALSE); - - if (ETM_CLASS(etree)->is_root) - return ETM_CLASS(etree)->is_root(etree, node); - else - return FALSE; -} - -/** - * e_tree_model_node_is_expandable: - * @etree: - * @path: - * - * - * - * Return value: - **/ -gboolean -e_tree_model_node_is_expandable (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail(etree != NULL, FALSE); - - if (ETM_CLASS(etree)->is_expandable) - return ETM_CLASS(etree)->is_expandable(etree, node); - else - return FALSE; -} - -guint -e_tree_model_node_get_children (ETreeModel *etree, ETreePath node, ETreePath **nodes) -{ - g_return_val_if_fail(etree != NULL, 0); - if (ETM_CLASS(etree)->get_children) - return ETM_CLASS(etree)->get_children (etree, node, nodes); - else - return 0; -} - -/** - * e_tree_model_node_depth: - * @etree: - * @path: - * - * - * - * Return value: - **/ -guint -e_tree_model_node_depth (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, 0); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), 0); - - if (ETM_CLASS(etree)->depth) - return ETM_CLASS(etree)->depth(etree, node); - else - return 0; -} - -/** - * e_tree_model_icon_at - * @etree: The ETreeModel. - * @path: The ETreePath to the node we're getting the icon of. - * - * XXX docs here. - * - * return values: the GdkPixbuf associated with this node. - */ -GdkPixbuf * -e_tree_model_icon_at (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->icon_at) - return ETM_CLASS(etree)->icon_at (etree, node); - else - return NULL; -} - -/** - * e_tree_model_get_expanded_default - * @etree: The ETreeModel. - * - * XXX docs here. - * - * return values: Whether nodes should be expanded by default. - */ -gboolean -e_tree_model_get_expanded_default (ETreeModel *etree) -{ - g_return_val_if_fail (etree != NULL, FALSE); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), FALSE); - - if (ETM_CLASS(etree)->get_expanded_default) - return ETM_CLASS(etree)->get_expanded_default (etree); - else - return FALSE; -} - -/** - * e_tree_model_column_count - * @etree: The ETreeModel. - * - * XXX docs here. - * - * return values: The number of columns - */ -gint -e_tree_model_column_count (ETreeModel *etree) -{ - g_return_val_if_fail (etree != NULL, 0); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), 0); - - if (ETM_CLASS(etree)->column_count) - return ETM_CLASS(etree)->column_count (etree); - else - return 0; -} - -/** - * e_tree_model_has_save_id - * @etree: The ETreeModel. - * - * XXX docs here. - * - * return values: Whether this tree has valid save id data. - */ -gboolean -e_tree_model_has_save_id (ETreeModel *etree) -{ - g_return_val_if_fail (etree != NULL, FALSE); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), FALSE); - - if (ETM_CLASS(etree)->has_save_id) - return ETM_CLASS(etree)->has_save_id (etree); - else - return FALSE; -} - -/** - * e_tree_model_get_save_id - * @etree: The ETreeModel. - * @node: The ETreePath. - * - * XXX docs here. - * - * return values: The save id for this path. - */ -gchar * -e_tree_model_get_save_id (ETreeModel *etree, ETreePath node) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_save_id) - return ETM_CLASS(etree)->get_save_id (etree, node); - else - return NULL; -} - -/** - * e_tree_model_has_get_node_by_id - * @etree: The ETreeModel. - * - * XXX docs here. - * - * return values: Whether this tree can quickly get a node from its save id. - */ -gboolean -e_tree_model_has_get_node_by_id (ETreeModel *etree) -{ - g_return_val_if_fail (etree != NULL, FALSE); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), FALSE); - - if (ETM_CLASS(etree)->has_get_node_by_id) - return ETM_CLASS(etree)->has_get_node_by_id (etree); - else - return FALSE; -} - -/** - * e_tree_model_get_node_by_id - * @etree: The ETreeModel. - * @node: The ETreePath. - * - * get_node_by_id(get_save_id(node)) should be the original node. - * Likewise if get_node_by_id is not NULL, then - * get_save_id(get_node_by_id(string)) should be a copy of the - * original string. - * - * return values: The path for this save id. - */ -ETreePath -e_tree_model_get_node_by_id (ETreeModel *etree, const char *save_id) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->get_node_by_id) - return ETM_CLASS(etree)->get_node_by_id (etree, save_id); - else - return NULL; -} - -/** - * e_tree_model_has_change_pending - * @etree: The ETreeModel. - * - * XXX docs here. - * - * return values: Whether this tree has valid save id data. - */ -gboolean -e_tree_model_has_change_pending (ETreeModel *etree) -{ - g_return_val_if_fail (etree != NULL, FALSE); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), FALSE); - - if (ETM_CLASS(etree)->has_change_pending) - return ETM_CLASS(etree)->has_change_pending (etree); - else - return FALSE; -} - -/** - * e_tree_model_value_at: - * @etree: The ETreeModel. - * @node: The ETreePath to the node we're getting the data from. - * @col: the column to retrieve data from - * - * Return value: This function returns the value that is stored by the - * @etree in column @col and node @node. The data returned can be a - * pointer or any data value that can be stored inside a pointer. - * - * The data returned is typically used by an ECell renderer. - * - * The data returned must be valid until the model sends a signal that - * affect that piece of data. node_changed and node_deleted affect - * all data in tha t node and all nodes under that node. - * node_data_changed affects the data in that node. node_col_changed - * affects the data in that node for that column. node_inserted, - * node_removed, and no_change don't affect any data in this way. - **/ -void * -e_tree_model_value_at (ETreeModel *etree, ETreePath node, int col) -{ - g_return_val_if_fail (etree != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (etree), NULL); - - if (ETM_CLASS(etree)->value_at) - return ETM_CLASS(etree)->value_at (etree, node, col); - else - return NULL; -} - -/** - * e_tree_model_icon_of_node - * @etree: The ETreeModel. - * @path: The ETreePath to the node we're getting the icon of. - * - * XXX docs here. - * - * return values: the GdkPixbuf associated with this node. - */ -void -e_tree_model_set_value_at (ETreeModel *etree, ETreePath node, int col, const void *val) -{ - g_return_if_fail (etree != NULL); - g_return_if_fail (E_IS_TREE_MODEL (etree)); - - if (ETM_CLASS(etree)->set_value_at) - ETM_CLASS(etree)->set_value_at (etree, node, col, val); -} - -/** - * e_tree_model_node_is_editable: - * @etree: - * @path: - * - * - * - * Return value: - **/ -gboolean -e_tree_model_node_is_editable (ETreeModel *etree, ETreePath node, int col) -{ - g_return_val_if_fail(etree != NULL, FALSE); - - if (ETM_CLASS(etree)->is_editable) - return ETM_CLASS(etree)->is_editable(etree, node, col); - else - return FALSE; -} - -/** - * e_tree_model_duplicate_value: - * @etree: - * @path: - * - * - * - * Return value: - **/ -void * -e_tree_model_duplicate_value (ETreeModel *etree, int col, const void *value) -{ - g_return_val_if_fail(etree != NULL, NULL); - - if (ETM_CLASS(etree)->duplicate_value) - return ETM_CLASS(etree)->duplicate_value(etree, col, value); - else - return NULL; -} - -/** - * e_tree_model_free_value: - * @etree: - * @path: - * - * - * - * Return value: - **/ -void -e_tree_model_free_value (ETreeModel *etree, int col, void *value) -{ - g_return_if_fail(etree != NULL); - - if (ETM_CLASS(etree)->free_value) - ETM_CLASS(etree)->free_value(etree, col, value); -} - -/** - * e_tree_model_initialize_value: - * @etree: - * @path: - * - * - * - * Return value: - **/ -void * -e_tree_model_initialize_value (ETreeModel *etree, int col) -{ - g_return_val_if_fail(etree != NULL, NULL); - - if (ETM_CLASS(etree)->initialize_value) - return ETM_CLASS(etree)->initialize_value(etree, col); - else - return NULL; -} - -/** - * e_tree_model_value_is_empty: - * @etree: - * @path: - * - * - * - * Return value: - **/ -gboolean -e_tree_model_value_is_empty (ETreeModel *etree, int col, const void *value) -{ - g_return_val_if_fail(etree != NULL, TRUE); - - if (ETM_CLASS(etree)->value_is_empty) - return ETM_CLASS(etree)->value_is_empty(etree, col, value); - else - return TRUE; -} - -/** - * e_tree_model_value_to_string: - * @etree: - * @path: - * - * - * - * Return value: - **/ -char * -e_tree_model_value_to_string (ETreeModel *etree, int col, const void *value) -{ - g_return_val_if_fail(etree != NULL, g_strdup("")); - - if (ETM_CLASS(etree)->value_to_string) - return ETM_CLASS(etree)->value_to_string(etree, col, value); - else - return g_strdup(""); -} - -/** - * e_tree_model_node_traverse: - * @model: - * @path: - * @func: - * @data: - * - * - **/ -void -e_tree_model_node_traverse (ETreeModel *model, ETreePath path, ETreePathFunc func, gpointer data) -{ - ETreePath child; - - g_return_if_fail (model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (model)); - g_return_if_fail (path != NULL); - - child = e_tree_model_node_get_first_child (model, path); - - while (child) { - ETreePath next_child; - - next_child = e_tree_model_node_get_next (model, child); - e_tree_model_node_traverse (model, child, func, data); - if (func (model, child, data) == TRUE) - return; - - child = next_child; - } -} - -/** - * e_tree_model_node_traverse_preorder: - * @model: - * @path: - * @func: - * @data: - * - * - **/ -void -e_tree_model_node_traverse_preorder (ETreeModel *model, ETreePath path, ETreePathFunc func, gpointer data) -{ - ETreePath child; - - g_return_if_fail (model != NULL); - g_return_if_fail (E_IS_TREE_MODEL (model)); - g_return_if_fail (path != NULL); - - child = e_tree_model_node_get_first_child (model, path); - - while (child) { - ETreePath next_child; - - if (func (model, child, data) == TRUE) - return; - - next_child = e_tree_model_node_get_next (model, child); - e_tree_model_node_traverse_preorder (model, child, func, data); - - child = next_child; - } -} - -/** - * e_tree_model_node_traverse_preorder: - * @model: - * @path: - * @func: - * @data: - * - * - **/ -static ETreePath -e_tree_model_node_real_traverse (ETreeModel *model, ETreePath path, ETreePath end_path, gboolean forward_direction, ETreePathFunc func, gpointer data) -{ - ETreePath child; - - g_return_val_if_fail (model != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (model), NULL); - g_return_val_if_fail (path != NULL, NULL); - - if (forward_direction) - child = e_tree_model_node_get_first_child (model, path); - else - child = e_tree_model_node_get_last_child (model, path); - - while (child) { - ETreePath result; - - if (forward_direction && (child == end_path || func (model, child, data))) - return child; - - if ((result = e_tree_model_node_real_traverse (model, child, end_path, forward_direction, func, data))) - return result; - - if (!forward_direction && (child == end_path || func (model, child, data))) - return child; - - if (forward_direction) - child = e_tree_model_node_get_next (model, child); - else - child = e_tree_model_node_get_prev (model, child); - } - return NULL; -} - -/** - * e_tree_model_node_traverse_preorder: - * @model: - * @path: - * @func: - * @data: - * - * - **/ -ETreePath -e_tree_model_node_find (ETreeModel *model, ETreePath path, ETreePath end_path, gboolean forward_direction, ETreePathFunc func, gpointer data) -{ - ETreePath result; - ETreePath next; - - g_return_val_if_fail (model != NULL, NULL); - g_return_val_if_fail (E_IS_TREE_MODEL (model), NULL); - - /* Just search the whole tree in this case. */ - if (path == NULL) { - ETreePath root; - root = e_tree_model_get_root (model); - - if (forward_direction && (end_path == root || func (model, root, data))) - return root; - - if ((result = e_tree_model_node_real_traverse (model, root, end_path, forward_direction, func, data))) - return result; - - if (!forward_direction && (end_path == root || func (model, root, data))) - return root; - - return NULL; - } - - while (1) { - - if (forward_direction) { - if ((result = e_tree_model_node_real_traverse (model, path, end_path, forward_direction, func, data))) - return result; - next = e_tree_model_node_get_next (model, path); - } else { - next = e_tree_model_node_get_prev (model, path); - if (next && (result = e_tree_model_node_real_traverse (model, next, end_path, forward_direction, func, data))) - return result; - } - - while (next == NULL) { - path = e_tree_model_node_get_parent (model, path); - - if (path == NULL) - return NULL; - - if (forward_direction) - next = e_tree_model_node_get_next (model, path); - else - next = path; - } - - if (end_path == next || func (model, next, data)) - return next; - - path = next; - } -} - |