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/* gtkrbtreeprivate.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, see <http://www.gnu.org/licenses/>.
*/
/* A Red-Black Tree implementation used specifically by GtkTreeView.
*/
#ifndef __GTK_TREE_RBTREE_PRIVATE_H__
#define __GTK_TREE_RBTREE_PRIVATE_H__
#include <glib.h>
G_BEGIN_DECLS
typedef enum
{
GTK_TREE_RBNODE_BLACK = 1 << 0,
GTK_TREE_RBNODE_RED = 1 << 1,
GTK_TREE_RBNODE_IS_PARENT = 1 << 2,
GTK_TREE_RBNODE_IS_SELECTED = 1 << 3,
GTK_TREE_RBNODE_IS_PRELIT = 1 << 4,
GTK_TREE_RBNODE_INVALID = 1 << 7,
GTK_TREE_RBNODE_COLUMN_INVALID = 1 << 8,
GTK_TREE_RBNODE_DESCENDANTS_INVALID = 1 << 9,
GTK_TREE_RBNODE_NON_COLORS = GTK_TREE_RBNODE_IS_PARENT |
GTK_TREE_RBNODE_IS_SELECTED |
GTK_TREE_RBNODE_IS_PRELIT |
GTK_TREE_RBNODE_INVALID |
GTK_TREE_RBNODE_COLUMN_INVALID |
GTK_TREE_RBNODE_DESCENDANTS_INVALID
} GtkTreeRBNodeColor;
typedef struct _GtkTreeRBTree GtkTreeRBTree;
typedef struct _GtkTreeRBNode GtkTreeRBNode;
typedef struct _GtkTreeRBTreeView GtkTreeRBTreeView;
typedef void (*GtkTreeRBTreeTraverseFunc) (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
gpointer data);
struct _GtkTreeRBTree
{
GtkTreeRBNode *root;
GtkTreeRBTree *parent_tree;
GtkTreeRBNode *parent_node;
};
struct _GtkTreeRBNode
{
guint flags : 14;
/* count is the number of nodes beneath us, plus 1 for ourselves.
* i.e. node->left->count + node->right->count + 1
*/
int count;
GtkTreeRBNode *left;
GtkTreeRBNode *right;
GtkTreeRBNode *parent;
/* count the number of total nodes beneath us, including nodes
* of children trees.
* i.e. node->left->count + node->right->count + node->children->root->count + 1
*/
guint total_count;
/* this is the total of sizes of
* node->left, node->right, our own height, and the height
* of all trees in ->children, iff children exists because
* the thing is expanded.
*/
int offset;
/* Child trees */
GtkTreeRBTree *children;
};
#define GTK_TREE_RBNODE_GET_COLOR(node) (node?(((node->flags>K_TREE_RBNODE_RED)==GTK_TREE_RBNODE_RED)?GTK_TREE_RBNODE_RED:GTK_TREE_RBNODE_BLACK):GTK_TREE_RBNODE_BLACK)
#define GTK_TREE_RBNODE_SET_COLOR(node,color) if((node->flags&color)!=color)node->flags=node->flags^(GTK_TREE_RBNODE_RED|GTK_TREE_RBNODE_BLACK)
#define GTK_TREE_RBNODE_GET_HEIGHT(node) (node->offset-(node->left->offset+node->right->offset+(node->children?node->children->root->offset:0)))
#define GTK_TREE_RBNODE_SET_FLAG(node, flag) G_STMT_START{ (node->flags|=flag); }G_STMT_END
#define GTK_TREE_RBNODE_UNSET_FLAG(node, flag) G_STMT_START{ (node->flags&=~(flag)); }G_STMT_END
#define GTK_TREE_RBNODE_FLAG_SET(node, flag) (node?(((node->flags&flag)==flag)?TRUE:FALSE):FALSE)
GtkTreeRBTree * gtk_tree_rbtree_new (void);
void gtk_tree_rbtree_free (GtkTreeRBTree *tree);
void gtk_tree_rbtree_remove (GtkTreeRBTree *tree);
void gtk_tree_rbtree_destroy (GtkTreeRBTree *tree);
GtkTreeRBNode * gtk_tree_rbtree_insert_before (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
int height,
gboolean valid);
GtkTreeRBNode * gtk_tree_rbtree_insert_after (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
int height,
gboolean valid);
void gtk_tree_rbtree_remove_node (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
gboolean gtk_tree_rbtree_is_nil (GtkTreeRBNode *node);
void gtk_tree_rbtree_reorder (GtkTreeRBTree *tree,
int *new_order,
int length);
gboolean gtk_tree_rbtree_contains (GtkTreeRBTree *tree,
GtkTreeRBTree *potential_child);
GtkTreeRBNode * gtk_tree_rbtree_find_count (GtkTreeRBTree *tree,
int count);
void gtk_tree_rbtree_node_set_height (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
int height);
void gtk_tree_rbtree_node_mark_invalid (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
void gtk_tree_rbtree_node_mark_valid (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
void gtk_tree_rbtree_column_invalid (GtkTreeRBTree *tree);
void gtk_tree_rbtree_mark_invalid (GtkTreeRBTree *tree);
void gtk_tree_rbtree_set_fixed_height (GtkTreeRBTree *tree,
int height,
gboolean mark_valid);
int gtk_tree_rbtree_node_find_offset (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
guint gtk_tree_rbtree_node_get_index (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
gboolean gtk_tree_rbtree_find_index (GtkTreeRBTree *tree,
guint index,
GtkTreeRBTree **new_tree,
GtkTreeRBNode **new_node);
int gtk_tree_rbtree_find_offset (GtkTreeRBTree *tree,
int offset,
GtkTreeRBTree **new_tree,
GtkTreeRBNode **new_node);
void gtk_tree_rbtree_traverse (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
GTraverseType order,
GtkTreeRBTreeTraverseFunc func,
gpointer data);
GtkTreeRBNode * gtk_tree_rbtree_first (GtkTreeRBTree *tree);
GtkTreeRBNode * gtk_tree_rbtree_next (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
GtkTreeRBNode * gtk_tree_rbtree_prev (GtkTreeRBTree *tree,
GtkTreeRBNode *node);
void gtk_tree_rbtree_next_full (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
GtkTreeRBTree **new_tree,
GtkTreeRBNode **new_node);
void gtk_tree_rbtree_prev_full (GtkTreeRBTree *tree,
GtkTreeRBNode *node,
GtkTreeRBTree **new_tree,
GtkTreeRBNode **new_node);
int gtk_tree_rbtree_get_depth (GtkTreeRBTree *tree);
G_END_DECLS
#endif /* __GTK_TREE_RBTREE_PRIVATE_H__ */
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