/* gtkrbtreeprivate.h * Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford * * 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 . */ /* A Red-Black Tree implementation used specifically by GtkTreeView. */ #pragma once #include 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