author | andy simpson <andrews@symbian.org> |
Fri, 17 Sep 2010 17:50:04 +0100 | |
branch | RCL_3 |
changeset 61 | b670675990af |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/* GLIB - Library of useful routines for C programming |
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald |
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* Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the |
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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* Boston, MA 02111-1307, USA. |
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*/ |
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|
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/* |
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* Modified by the GLib Team and others 1997-2000. See the AUTHORS |
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* file for a list of people on the GLib Team. See the ChangeLog |
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* files for a list of changes. These files are distributed with |
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* GLib at ftp://ftp.gtk.org/pub/gtk/. |
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*/ |
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|
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#ifndef __G_NODE_H__ |
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#define __G_NODE_H__ |
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#include <_ansi.h> |
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#include <glib/gmem.h> |
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G_BEGIN_DECLS |
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typedef struct _GNode GNode; |
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/* Tree traverse flags */ |
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typedef enum |
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{ |
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G_TRAVERSE_LEAVES = 1 << 0, |
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G_TRAVERSE_NON_LEAVES = 1 << 1, |
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G_TRAVERSE_ALL = G_TRAVERSE_LEAVES | G_TRAVERSE_NON_LEAVES, |
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G_TRAVERSE_MASK = 0x03, |
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G_TRAVERSE_LEAFS = G_TRAVERSE_LEAVES, |
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G_TRAVERSE_NON_LEAFS = G_TRAVERSE_NON_LEAVES |
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} GTraverseFlags; |
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/* Tree traverse orders */ |
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typedef enum |
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{ |
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G_IN_ORDER, |
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G_PRE_ORDER, |
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G_POST_ORDER, |
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G_LEVEL_ORDER |
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} GTraverseType; |
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typedef gboolean (*GNodeTraverseFunc) (GNode *node, |
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gpointer data); |
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typedef void (*GNodeForeachFunc) (GNode *node, |
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gpointer data); |
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typedef gpointer (*GCopyFunc) (gconstpointer src, |
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gpointer data); |
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/* N-way tree implementation |
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*/ |
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struct _GNode |
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{ |
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gpointer data; |
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GNode *next; |
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GNode *prev; |
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GNode *parent; |
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GNode *children; |
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}; |
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#define G_NODE_IS_ROOT(node) (((GNode*) (node))->parent == NULL && \ |
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((GNode*) (node))->prev == NULL && \ |
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((GNode*) (node))->next == NULL) |
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#define G_NODE_IS_LEAF(node) (((GNode*) (node))->children == NULL) |
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IMPORT_C GNode* g_node_new (gpointer data); |
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IMPORT_C void g_node_destroy (GNode *root); |
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IMPORT_C void g_node_unlink (GNode *node); |
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IMPORT_C GNode* g_node_copy_deep (GNode *node, |
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GCopyFunc copy_func, |
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gpointer data); |
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IMPORT_C GNode* g_node_copy (GNode *node); |
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IMPORT_C GNode* g_node_insert (GNode *parent, |
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gint position, |
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GNode *node); |
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IMPORT_C GNode* g_node_insert_before (GNode *parent, |
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GNode *sibling, |
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GNode *node); |
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IMPORT_C GNode* g_node_insert_after (GNode *parent, |
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GNode *sibling, |
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GNode *node); |
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IMPORT_C GNode* g_node_prepend (GNode *parent, |
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GNode *node); |
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IMPORT_C guint g_node_n_nodes (GNode *root, |
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GTraverseFlags flags); |
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IMPORT_C GNode* g_node_get_root (GNode *node); |
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IMPORT_C gboolean g_node_is_ancestor (GNode *node, |
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GNode *descendant); |
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IMPORT_C guint g_node_depth (GNode *node); |
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IMPORT_C GNode* g_node_find (GNode *root, |
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GTraverseType order, |
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GTraverseFlags flags, |
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gpointer data); |
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|
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/* convenience macros */ |
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#define g_node_append(parent, node) \ |
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g_node_insert_before ((parent), NULL, (node)) |
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#define g_node_insert_data(parent, position, data) \ |
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g_node_insert ((parent), (position), g_node_new (data)) |
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#define g_node_insert_data_before(parent, sibling, data) \ |
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g_node_insert_before ((parent), (sibling), g_node_new (data)) |
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#define g_node_prepend_data(parent, data) \ |
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g_node_prepend ((parent), g_node_new (data)) |
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#define g_node_append_data(parent, data) \ |
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g_node_insert_before ((parent), NULL, g_node_new (data)) |
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121 |
|
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/* traversal function, assumes that `node' is root |
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* (only traverses `node' and its subtree). |
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* this function is just a high level interface to |
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* low level traversal functions, optimized for speed. |
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*/ |
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IMPORT_C void g_node_traverse (GNode *root, |
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GTraverseType order, |
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GTraverseFlags flags, |
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gint max_depth, |
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GNodeTraverseFunc func, |
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gpointer data); |
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133 |
|
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/* return the maximum tree height starting with `node', this is an expensive |
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* operation, since we need to visit all nodes. this could be shortened by |
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* adding `guint height' to struct _GNode, but then again, this is not very |
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* often needed, and would make g_node_insert() more time consuming. |
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*/ |
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IMPORT_C guint g_node_max_height (GNode *root); |
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|
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IMPORT_C void g_node_children_foreach (GNode *node, |
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GTraverseFlags flags, |
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GNodeForeachFunc func, |
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gpointer data); |
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IMPORT_C void g_node_reverse_children (GNode *node); |
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IMPORT_C guint g_node_n_children (GNode *node); |
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IMPORT_C GNode* g_node_nth_child (GNode *node, |
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guint n); |
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IMPORT_C GNode* g_node_last_child (GNode *node); |
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IMPORT_C GNode* g_node_find_child (GNode *node, |
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GTraverseFlags flags, |
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gpointer data); |
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IMPORT_C gint g_node_child_position (GNode *node, |
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GNode *child); |
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IMPORT_C gint g_node_child_index (GNode *node, |
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gpointer data); |
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|
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IMPORT_C GNode* g_node_first_sibling (GNode *node); |
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IMPORT_C GNode* g_node_last_sibling (GNode *node); |
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|
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#define g_node_prev_sibling(node) ((node) ? \ |
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((GNode*) (node))->prev : NULL) |
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#define g_node_next_sibling(node) ((node) ? \ |
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((GNode*) (node))->next : NULL) |
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#define g_node_first_child(node) ((node) ? \ |
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((GNode*) (node))->children : NULL) |
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|
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#ifndef G_DISABLE_DEPRECATED |
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IMPORT_C void g_node_push_allocator (gpointer dummy); |
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IMPORT_C void g_node_pop_allocator (void); |
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#endif |
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G_END_DECLS |
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|
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#endif /* __G_NODE_H__ */ |