WROIBox.h

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 WROIBOX_H
00026 #define WROIBOX_H
00027 
00028 #include <string>
00029 #include <utility>
00030 
00031 #include <boost/thread.hpp>
00032 
00033 #include "../common/math/linearAlgebra/WLinearAlgebra.h"
00034 #include "WPickHandler.h"
00035 #include "WGEViewer.h"
00036 
00037 #include "WROI.h"
00038 #include "WExportWGE.h"
00039 
00040 /**
00041  * A box representing a region of interest.
00042  */
00043 class WGE_EXPORT WROIBox : public WROI
00044 {
00045 public:
00046     /**
00047      * Yields box with desired extremal points minPos and maxPos
00048      * \param minPos Left, lower, front corner. Minimal x, y and z coordinates.
00049      * \param maxPos Right, upper, back corner. Maximal x, y and z coordinates.
00050      */
00051     WROIBox(  WPosition minPos, WPosition maxPos );
00052 
00053     virtual ~WROIBox();
00054 
00055     /**
00056      * Get the corner of the box that has minimal x, y and z values
00057      *
00058      * \return the corner position
00059      */
00060     WPosition getMinPos() const;
00061 
00062     /**
00063      * Get the corner of the box that has maximal x, y and z values
00064      *
00065      * \return the corner position
00066      */
00067     WPosition getMaxPos() const;
00068 
00069     /**
00070      * Setter for standard color
00071      * \param color The new color.
00072      */
00073     void setColor( osg::Vec4 color );
00074 
00075     /**
00076      * Setter for color in negated state
00077      * \param color The new color.
00078      */
00079     void setNotColor( osg::Vec4 color );
00080 
00081 protected:
00082 private:
00083     static size_t maxBoxId; //!< Current maximum boxId over all boxes.
00084     size_t boxId; //!< Id of the current box.
00085 
00086     WPosition m_minPos; //!< The minimum position of the box
00087     WPosition m_maxPos; //!< The maximum position of the box
00088     bool m_isPicked; //!< Indicates whether the box is currently picked or not.
00089     WPosition m_pickedPosition; //!< Caches the old picked position to a allow for cmoparison
00090     WVector3d m_pickNormal; //!< Store the normal that occured when the pick action was started.
00091     WVector2d m_oldPixelPosition; //!< Caches the old picked position to a allow for cmoparison
00092     boost::shared_mutex m_updateLock; //!< Lock to prevent concurrent threads trying to update the osg node
00093     osg::ref_ptr< osg::Geometry > m_surfaceGeometry; //!< store this pointer for use in updates
00094 
00095     WPickInfo m_pickInfo; //!< Stores the pick information for potential redraw
00096 
00097     boost::shared_ptr< WGEViewer > m_viewer; //!< makes viewer available all over this class.
00098 
00099     osg::Vec4 m_color; //!< the color of the box
00100 
00101     osg::Vec4 m_notColor; //!< the color of the box when negated
00102 
00103     /**
00104      * note that there was a pick
00105      * \param pickInfo info from pick
00106      */
00107     void registerRedrawRequest( WPickInfo pickInfo );
00108 
00109     /**
00110      *  updates the graphics
00111      */
00112     virtual void updateGFX();
00113 
00114     /**
00115      * Node callback to handle updates properly
00116      */
00117     class ROIBoxNodeCallback : public osg::NodeCallback
00118     {
00119     public: // NOLINT
00120         /**
00121          * operator ()
00122          *
00123          * \param node the osg node
00124          * \param nv the node visitor
00125          */
00126         virtual void operator()( osg::Node* node, osg::NodeVisitor* nv )
00127         {
00128             osg::ref_ptr< WROIBox > module = static_cast< WROIBox* > ( node->getUserData() );
00129             if( module )
00130             {
00131                 module->updateGFX();
00132             }
00133             traverse( node, nv );
00134         }
00135     };
00136 };
00137 
00138 #endif  // WROIBOX_H
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