layoutcursor.hpp
Go to the documentation of this file.00001 /* -*- mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*- */ 00002 /* 00003 * Main authors: 00004 * Guido Tack <tack@gecode.org> 00005 * 00006 * Copyright: 00007 * Guido Tack, 2006 00008 * 00009 * This file is part of Gecode, the generic constraint 00010 * development environment: 00011 * http://www.gecode.org 00012 * 00013 * Permission is hereby granted, free of charge, to any person obtaining 00014 * a copy of this software and associated documentation files (the 00015 * "Software"), to deal in the Software without restriction, including 00016 * without limitation the rights to use, copy, modify, merge, publish, 00017 * distribute, sublicense, and/or sell copies of the Software, and to 00018 * permit persons to whom the Software is furnished to do so, subject to 00019 * the following conditions: 00020 * 00021 * The above copyright notice and this permission notice shall be 00022 * included in all copies or substantial portions of the Software. 00023 * 00024 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00025 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00026 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00027 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 00028 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 00029 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00030 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00031 * 00032 */ 00033 00034 namespace Gecode { namespace Gist { 00035 00036 forceinline bool 00037 LayoutCursor::mayMoveDownwards(void) { 00038 return NodeCursor<VisualNode>::mayMoveDownwards() && 00039 node()->isDirty(); 00040 } 00041 00042 inline 00043 LayoutCursor::LayoutCursor(VisualNode* theNode, 00044 const VisualNode::NodeAllocator& na) 00045 : NodeCursor<VisualNode>(theNode,na) {} 00046 00047 forceinline void 00048 LayoutCursor::processCurrentNode(void) { 00049 VisualNode* currentNode = node(); 00050 if (currentNode->isDirty()) { 00051 if (currentNode->isHidden()) { 00052 // do nothing 00053 } else if (false && currentNode->getNumberOfChildren() < 1) { 00054 currentNode->setShape(Shape::leaf); 00055 } else { 00056 currentNode->computeShape(na); 00057 } 00058 currentNode->setDirty(false); 00059 } 00060 if (currentNode->getNumberOfChildren() >= 1) 00061 currentNode->setChildrenLayoutDone(true); 00062 } 00063 00064 }} 00065 00066 // STATISTICS: gist-any