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-rw-r--r--tqtinterface/qt4/src/tools/tqmap.cpp257
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diff --git a/tqtinterface/qt4/src/tools/tqmap.cpp b/tqtinterface/qt4/src/tools/tqmap.cpp
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-/****************************************************************************
-**
-** Implementation of TQMap
-**
-** Created : 990406
-**
-** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA.
-**
-** This file is part of the tools module of the TQt GUI Toolkit.
-**
-** This file may be used under the terms of the GNU General
-** Public License versions 2.0 or 3.0 as published by the Free
-** Software Foundation and appearing in the files LICENSE.GPL2
-** and LICENSE.GPL3 included in the packaging of this file.
-** Alternatively you may (at your option) use any later version
-** of the GNU General Public License if such license has been
-** publicly approved by Trolltech ASA (or its successors, if any)
-** and the KDE Free TQt Foundation.
-**
-** Please review the following information to ensure GNU General
-** Public Licensing requirements will be met:
-** http://trolltech.com/products/qt/licenses/licensing/opensource/.
-** If you are unsure which license is appropriate for your use, please
-** review the following information:
-** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
-** or contact the sales department at sales@trolltech.com.
-**
-** This file may be used under the terms of the Q Public License as
-** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
-** included in the packaging of this file. Licensees holding valid TQt
-** Commercial licenses may use this file in accordance with the TQt
-** Commercial License Agreement provided with the Software.
-**
-** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
-** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
-** herein.
-**
-**********************************************************************/
-
-#include "tqmap.h"
-
-typedef TQMapNodeBase* NodePtr;
-typedef TQMapNodeBase Node;
-
-
-void TQMapPrivateBase::rotateLeft( NodePtr x, NodePtr& root)
-{
- NodePtr y = x->right;
- x->right = y->left;
- if (y->left !=0)
- y->left->parent = x;
- y->parent = x->parent;
- if (x == root)
- root = y;
- else if (x == x->parent->left)
- x->parent->left = y;
- else
- x->parent->right = y;
- y->left = x;
- x->parent = y;
-}
-
-
-void TQMapPrivateBase::rotateRight( NodePtr x, NodePtr& root )
-{
- NodePtr y = x->left;
- x->left = y->right;
- if (y->right != 0)
- y->right->parent = x;
- y->parent = x->parent;
- if (x == root)
- root = y;
- else if (x == x->parent->right)
- x->parent->right = y;
- else
- x->parent->left = y;
- y->right = x;
- x->parent = y;
-}
-
-
-void TQMapPrivateBase::rebalance( NodePtr x, NodePtr& root)
-{
- x->color = Node::Red;
- while ( x != root && x->parent->color == Node::Red ) {
- if ( x->parent == x->parent->parent->left ) {
- NodePtr y = x->parent->parent->right;
- if (y && y->color == Node::Red) {
- x->parent->color = Node::Black;
- y->color = Node::Black;
- x->parent->parent->color = Node::Red;
- x = x->parent->parent;
- } else {
- if (x == x->parent->right) {
- x = x->parent;
- rotateLeft( x, root );
- }
- x->parent->color = Node::Black;
- x->parent->parent->color = Node::Red;
- rotateRight (x->parent->parent, root );
- }
- } else {
- NodePtr y = x->parent->parent->left;
- if ( y && y->color == Node::Red ) {
- x->parent->color = Node::Black;
- y->color = Node::Black;
- x->parent->parent->color = Node::Red;
- x = x->parent->parent;
- } else {
- if (x == x->parent->left) {
- x = x->parent;
- rotateRight( x, root );
- }
- x->parent->color = Node::Black;
- x->parent->parent->color = Node::Red;
- rotateLeft( x->parent->parent, root );
- }
- }
- }
- root->color = Node::Black;
-}
-
-
-NodePtr TQMapPrivateBase::removeAndRebalance( NodePtr z, NodePtr& root,
- NodePtr& leftmost,
- NodePtr& rightmost )
-{
- NodePtr y = z;
- NodePtr x;
- NodePtr x_parent;
- if (y->left == 0) {
- x = y->right;
- } else {
- if (y->right == 0)
- x = y->left;
- else
- {
- y = y->right;
- while (y->left != 0)
- y = y->left;
- x = y->right;
- }
- }
- if (y != z) {
- z->left->parent = y;
- y->left = z->left;
- if (y != z->right) {
- x_parent = y->parent;
- if (x)
- x->parent = y->parent;
- y->parent->left = x;
- y->right = z->right;
- z->right->parent = y;
- } else {
- x_parent = y;
- }
- if (root == z)
- root = y;
- else if (z->parent->left == z)
- z->parent->left = y;
- else
- z->parent->right = y;
- y->parent = z->parent;
- // Swap the colors
- Node::Color c = y->color;
- y->color = z->color;
- z->color = c;
- y = z;
- } else {
- x_parent = y->parent;
- if (x)
- x->parent = y->parent;
- if (root == z)
- root = x;
- else if (z->parent->left == z)
- z->parent->left = x;
- else
- z->parent->right = x;
- if ( leftmost == z ) {
- if (z->right == 0)
- leftmost = z->parent;
- else
- leftmost = x->minimum();
- }
- if (rightmost == z) {
- if (z->left == 0)
- rightmost = z->parent;
- else
- rightmost = x->maximum();
- }
- }
- if (y->color != Node::Red) {
- while (x != root && (x == 0 || x->color == Node::Black)) {
- if (x == x_parent->left) {
- NodePtr w = x_parent->right;
- if (w->color == Node::Red) {
- w->color = Node::Black;
- x_parent->color = Node::Red;
- rotateLeft(x_parent, root);
- w = x_parent->right;
- }
- if ((w->left == 0 || w->left->color == Node::Black) &&
- (w->right == 0 || w->right->color == Node::Black)) {
- w->color = Node::Red;
- x = x_parent;
- x_parent = x_parent->parent;
- } else {
- if (w->right == 0 || w->right->color == Node::Black) {
- if (w->left)
- w->left->color = Node::Black;
- w->color = Node::Red;
- rotateRight(w, root);
- w = x_parent->right;
- }
- w->color = x_parent->color;
- x_parent->color = Node::Black;
- if (w->right)
- w->right->color = Node::Black;
- rotateLeft(x_parent, root);
- break;
- }
- } else {
- NodePtr w = x_parent->left;
- if (w->color == Node::Red) {
- w->color = Node::Black;
- x_parent->color = Node::Red;
- rotateRight(x_parent, root);
- w = x_parent->left;
- }
- if ((w->right == 0 || w->right->color == Node::Black) &&
- (w->left == 0 || w->left->color == Node::Black)) {
- w->color = Node::Red;
- x = x_parent;
- x_parent = x_parent->parent;
- } else {
- if (w->left == 0 || w->left->color == Node::Black) {
- if (w->right)
- w->right->color = Node::Black;
- w->color = Node::Red;
- rotateLeft(w, root);
- w = x_parent->left;
- }
- w->color = x_parent->color;
- x_parent->color = Node::Black;
- if (w->left)
- w->left->color = Node::Black;
- rotateRight(x_parent, root);
- break;
- }
- }
- }
- if (x)
- x->color = Node::Black;
- }
- return y;
-}
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