drawingcursor.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 inline void 00037 DrawingCursor::moveUpwards(void) { 00038 x -= node()->getOffset(); 00039 y -= Layout::dist_y; 00040 NodeCursor<VisualNode>::moveUpwards(); 00041 } 00042 00043 forceinline bool 00044 DrawingCursor::isClipped(void) { 00045 if (clippingRect.width() == 0 && clippingRect.x() == 0 00046 && clippingRect.height() == 0 && clippingRect.y() == 0) 00047 return false; 00048 BoundingBox b = node()->getBoundingBox(); 00049 return (x + b.left > clippingRect.x() + clippingRect.width() || 00050 x + b.right < clippingRect.x() || 00051 y > clippingRect.y() + clippingRect.height() || 00052 y + (node()->getShape()->depth()+1) * Layout::dist_y < 00053 clippingRect.y()); 00054 } 00055 00056 inline bool 00057 DrawingCursor::mayMoveDownwards(void) { 00058 return NodeCursor<VisualNode>::mayMoveDownwards() && 00059 !node()->isHidden() && 00060 node()->childrenLayoutIsDone() && 00061 !isClipped(); 00062 } 00063 00064 inline void 00065 DrawingCursor::moveDownwards(void) { 00066 NodeCursor<VisualNode>::moveDownwards(); 00067 x += node()->getOffset(); 00068 y += Layout::dist_y; 00069 } 00070 00071 inline void 00072 DrawingCursor::moveSidewards(void) { 00073 x -= node()->getOffset(); 00074 NodeCursor<VisualNode>::moveSidewards(); 00075 x += node()->getOffset(); 00076 } 00077 00078 00079 }} 00080 // STATISTICS: gist-any