OpenWalnut
1.4.0
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00001 //--------------------------------------------------------------------------- 00002 // 00003 // Project: OpenWalnut ( http://www.openwalnut.org ) 00004 // 00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS 00006 // For more information see http://www.openwalnut.org/copying 00007 // 00008 // This file is part of OpenWalnut. 00009 // 00010 // OpenWalnut is free software: you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as published by 00012 // the Free Software Foundation, either version 3 of the License, or 00013 // (at your option) any later version. 00014 // 00015 // OpenWalnut is distributed in the hope that it will be useful, 00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 // GNU Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public License 00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>. 00022 // 00023 //--------------------------------------------------------------------------- 00024 00025 #ifndef WGELAYOUTABLEITEM_H 00026 #define WGELAYOUTABLEITEM_H 00027 00028 #include <osg/Vec3> 00029 00030 /** 00031 * This class builds the base for graphical items that can be layouted using WGEItemLayouter instances. The layoutable item needs to overwrite 00032 * the getAnchor method, telling the layout algorithm where the items anchor point is situated. Depending on the layout, the item is placed there 00033 * or somewhere else with a leader-line to the anchor point. 00034 */ 00035 class WGELayoutableItem 00036 { 00037 public: 00038 /** 00039 * Default constructor. 00040 */ 00041 WGELayoutableItem(); 00042 00043 /** 00044 * Destructor. 00045 */ 00046 virtual ~WGELayoutableItem(); 00047 00048 /** 00049 * Gets the current anchor point of the item. 00050 * 00051 * \return the anchor. 00052 */ 00053 virtual osg::Vec3 getAnchor() const = 0; 00054 00055 protected: 00056 private: 00057 }; 00058 00059 #endif // WGELAYOUTABLEITEM_H 00060