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/**************************************************************************\
*
* This file is part of the Coin 3D visualization library.
* Copyright (C) by Kongsberg Oil & Gas Technologies.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.GPL at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using Coin with software that can not be combined with the GNU
* GPL, and for taking advantage of the additional benefits of our
* support services, please contact Kongsberg Oil & Gas Technologies
* about acquiring a Coin Professional Edition License.
*
* See http://www.coin3d.org/ for more information.
*
* Kongsberg Oil & Gas Technologies, Bygdoy Alle 5, 0257 Oslo, NORWAY.
* http://www.sim.no/ sales@sim.no coin-support@coin3d.org
*
\**************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif // HAVE_CONFIG_H
#ifdef HAVE_VRML97
/*!
\class SoVRMLGeometry SoVRMLGeometry.h Inventor/VRMLnodes/SoVRMLGeometry.h
\brief The SoVRMLGeometry class is a superclass for VRML shapes.
*/
#include <Inventor/VRMLnodes/SoVRMLGeometry.h>
#include <Inventor/VRMLnodes/SoVRMLParent.h>
#include <Inventor/VRMLnodes/SoVRMLMacros.h>
#include <Inventor/elements/SoGLShapeHintsElement.h>
#include <Inventor/elements/SoOverrideElement.h>
#include <Inventor/fields/SoSFNode.h>
#include <Inventor/misc/SoChildList.h>
#include <Inventor/actions/SoSearchAction.h>
#ifdef HAVE_THREADS
#include <Inventor/threads/SbMutex.h>
#endif // HAVE_THREADS
#include "nodes/SoSubNodeP.h"
// *************************************************************************
class SoVRMLGeometryP {
public:
SoChildList * childlist;
SbBool childlistvalid;
#ifdef COIN_THREADSAFE
SbMutex childlistmutex;
void lockChildList(void) { this->childlistmutex.lock(); }
void unlockChildList(void) { this->childlistmutex.unlock(); }
#else // !COIN_THREADSAFE
void lockChildList(void) { }
void unlockChildList(void) { }
#endif // !COIN_THREADSAFE
};
#define PRIVATE(thisp) ((thisp)->pimpl)
// *************************************************************************
SO_NODE_ABSTRACT_SOURCE(SoVRMLGeometry);
// *************************************************************************
// Doc in parent
void
SoVRMLGeometry::initClass(void)
{
SO_NODE_INTERNAL_INIT_ABSTRACT_CLASS(SoVRMLGeometry, SO_VRML97_NODE_TYPE);
}
/*!
Constructor.
*/
SoVRMLGeometry::SoVRMLGeometry(void)
{
PRIVATE(this) = new SoVRMLGeometryP;
// supply a NULL-pointer as parent, since notifications will be
// handled by the fields that actually contain the node(s)
PRIVATE(this)->childlist = new SoChildList(NULL);
PRIVATE(this)->childlistvalid = FALSE;
SO_VRMLNODE_INTERNAL_CONSTRUCTOR(SoVRMLGeometry);
}
/*!
Destructor.
*/
SoVRMLGeometry::~SoVRMLGeometry()
{
delete PRIVATE(this)->childlist;
delete PRIVATE(this);
}
// Doc in parent
SbBool
SoVRMLGeometry::shouldGLRender(SoGLRenderAction * action)
{
return inherited::shouldGLRender(action);
}
/*!
Convenience method that updates the shape hints element.
*/
void
SoVRMLGeometry::setupShapeHints(SoState * state, const SbBool ccw, const SbBool solid)
{
if (!(SoOverrideElement::getFlags(state) & SoOverrideElement::SHAPE_HINTS)) {
SoShapeHintsElement::set(state, this,
ccw ? SoShapeHintsElement::COUNTERCLOCKWISE : SoShapeHintsElement::CLOCKWISE,
solid ? SoShapeHintsElement::SOLID : SoShapeHintsElement::UNKNOWN_SHAPE_TYPE,
SoShapeHintsElement::FACE_TYPE_AS_IS);
}
}
// Doc in parent
SoChildList *
SoVRMLGeometry::getChildren(void) const
{
if (!PRIVATE(this)->childlistvalid) {
// this is not 100% thread safe. The assumption is that no nodes
// will be added or removed while a scene graph is being
// traversed. For Coin, this is an ok assumption.
PRIVATE(this)->lockChildList();
// test again after we've locked
if (!PRIVATE(this)->childlistvalid) {
SoVRMLGeometry * thisp = (SoVRMLGeometry*) this;
SoVRMLParent::updateChildList(thisp, *(PRIVATE(thisp)->childlist));
PRIVATE(thisp)->childlistvalid = TRUE;
}
PRIVATE(this)->unlockChildList();
}
return PRIVATE(this)->childlist;
}
// Doc in parent
void
SoVRMLGeometry::search(SoSearchAction * action)
{
SoNode::search(action);
if (action->isFound() || this->getChildren() == NULL) return;
int numindices;
const int * indices;
if (action->getPathCode(numindices, indices) == SoAction::IN_PATH) {
this->getChildren()->traverseInPath(action, numindices, indices);
}
else {
this->getChildren()->traverse(action); // traverse all children
}
}
// Doc in parent
void
SoVRMLGeometry::notify(SoNotList * list)
{
SoField * f = list->getLastField();
if (f && f->getTypeId() == SoSFNode::getClassTypeId()) {
PRIVATE(this)->childlistvalid = FALSE;
}
inherited::notify(list);
}
// Doc in parent
void
SoVRMLGeometry::copyContents(const SoFieldContainer * from,
SbBool copyConn)
{
inherited::copyContents(from, copyConn);
PRIVATE(this)->childlistvalid = FALSE;
PRIVATE(this)->childlist->truncate(0);
}
#undef PRIVATE
#endif // HAVE_VRML97
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