X3DShapeNode.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __X3DSHAPENODE_H__
#define __X3DSHAPENODE_H__
 
#include <H3D/X3DChildNode.h>
#include <H3D/X3DBoundedObject.h>
#include <H3D/X3DAppearanceNode.h>
#include <H3D/X3DGeometryNode.h>
#include <H3D/DependentNodeFields.h>
#include <H3D/H3DDisplayListObject.h>
#include <H3D/H3DShadowObjectNode.h>
 
namespace H3D {
  class H3DAPI_API X3DShapeNode : 
    public X3DChildNode,
    public X3DBoundedObject,
    public H3DDisplayListObject {
  public:
    typedef DependentSFNode< X3DAppearanceNode,
                             FieldRef<H3DDisplayListObject, 
                                      H3DDisplayListObject::DisplayList,
                                      &H3DDisplayListObject::displayList >, 
                             true > 
    SFAppearanceNode;
        
    typedef TypedSFNode< X3DGeometryNode > SFHapticGeometry;
 
    class SFGeometryNode: 
      public DependentSFNode< X3DGeometryNode, 
      FieldRef< H3DDisplayListObject,
      H3DDisplayListObject::DisplayList,
      &H3DDisplayListObject::displayList >, true > {
        typedef DependentSFNode< X3DGeometryNode, 
        FieldRef< H3DDisplayListObject,
                  H3DDisplayListObject::DisplayList,
                  &H3DDisplayListObject::displayList >, true > BaseField;
    public:
    
      SFGeometryNode(): 
        owner( NULL ) {}
 
      virtual ~SFGeometryNode() {
        value = NULL;
      }
 
      virtual void onAdd( Node *n ) {
        BaseField::onAdd( n );
        if( n && owner->use_geometry_bound ) {
          X3DGeometryNode *g = static_cast< X3DGeometryNode * >( n );
          g->bound->route( owner->bound );
        }
      }
      
      virtual void onRemove( Node *n ) {
        BaseField::onRemove( n );
        if( n && owner->use_geometry_bound ) {
          X3DGeometryNode *g = static_cast< X3DGeometryNode * >( n );
          g->bound->unroute( owner->bound );
        }
      }
 
      // the shape node that the instance of the SFGeometry field
      // is in.
      X3DShapeNode *owner;
 
    };
 
    class H3DAPI_API BugWorkaroundDisplayList: 
      public H3DDisplayListObject::DisplayList {
      virtual bool haveValidDisplayList();
    };
 
    class H3DAPI_API DisplayList: public BugWorkaroundDisplayList {
    public: 
      virtual void callList( bool build_list = true );
    };
 
 
    typedef TypedSFNode< H3DShadowObjectNode > SFShadowObjectNode;  
 
    X3DShapeNode( Inst< SFAppearanceNode > _appearance     = 0,
                  Inst< SFGeometryNode   > _geometry       = 0,
                  Inst< SFHapticGeometry > _hapticGeometry = 0,
                  Inst< SFNode           > _metadata       = 0,
                  Inst< SFBound          > _bound          = 0,
                  Inst< SFVec3f          > _bboxCenter     = 0,
                  Inst< SFVec3f          > _bboxSize       = 0,
                  Inst< DisplayList      > _displayList    = 0
                  );
 
    virtual void initialize() {
      const Vec3f &size = bboxSize->getValue();
      if( size.x == -1 && size.y == -1 && size.z == -1 ) {
        use_geometry_bound = true;
        X3DGeometryNode *g = 
          static_cast< X3DGeometryNode * >( geometry->getValue() );
        if( g ) {
          g->bound->route( this->bound );
        }
      } else {
        BoxBound *bb = new BoxBound();
        bb->center->setValue( bboxCenter->getValue() );
        bb->size->setValue( bboxSize->getValue() );
        bound->setValue( bb );
      }
      X3DChildNode::initialize();
    }
 
    virtual void render();
 
    virtual void traverseSG( TraverseInfo &ti );
 
    virtual bool lineIntersect(
      const Vec3f &from,
      const Vec3f &to,
      LineIntersectResult &result );
 
    virtual void closestPoint( const Vec3f &p,
                               NodeIntersectResult &result );
 
    virtual bool movingSphereIntersect( H3DFloat radius,
                                        const Vec3f &from, 
                                        const Vec3f &to,
                                        NodeIntersectResult &result );
 
    typedef enum {
      TRANSPARENT_ONLY,
      TRANSPARENT_FRONT,
      TRANSPARENT_BACK,
      SOLID,
      ALL
    } GeometryRenderMode;
 
    static GeometryRenderMode geometry_render_mode;
 
    H3DUniquePtr<    SFAppearanceNode  >  appearance;
 
    H3DUniquePtr<    SFGeometryNode  >  geometry;
 
    H3DUniquePtr<    SFHapticGeometry  >  hapticGeometry;
 
    H3DUniquePtr<    SFShadowObjectNode >  shadowVolume;
 
    // if true a route will be set up between the bound field of the
    // geometry node in this field and the bound field of the shape. 
    bool use_geometry_bound;
 
    static H3DNodeDatabase database;
 
    static bool disable_lighting_if_no_app;
  protected:
 
    // Adress of traverseInfo 
    // only interested in adress, what it points to will be invalid.
    // It is needed to correctly set traverse_multipass_transparency
    // if a X3DShapeNode is used in several places in the scene graph.
    TraverseInfo *prev_travinfoadr;
    // If the node is in several places in the scene graph it might
    // use different values for setting multipass transparency in
    // traverseSG. The last one is the one that will be used. This
    // stores values during a traverseSG pass and "or" it with
    // new values. If any of the pass returns true then multipass
    // transparency should be used.
    bool traverse_multipass_transparency;
 
    // The GlobalSettings node that was in used in last call to 
    // traverseSG
    AutoRef<Node> last_global_settings;
  };
}
 
#endif