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#include <QvElement.h>
#include <QvNodes.h>
#include <QvState.h>
//#ifdef WIN32
#include <QvUnknownNode.h>
//#endif
//////////////////////////////////////////////////////////////////////////////
//
// Traversal code for all nodes. The default method (in QvNode) does
// nothing. Because traverse() is defined in the header for ALL node
// classes, each one has an implementation here.
//
//////////////////////////////////////////////////////////////////////////////
// For debugging
static int indent = 0;
static void
announce(const char *className)
{
for (int i = 0; i < indent; i++)
printf("\t");
printf("Traversing a %s\n", className);
}
#define ANNOUNCE(className) announce(QV__QUOTE(className))
#define DEFAULT_TRAVERSE(className) \
void \
className::traverse(QvState *) \
{ \
ANNOUNCE(className); \
}
//////////////////////////////////////////////////////////////////////////////
//
// Groups.
//
//////////////////////////////////////////////////////////////////////////////
void
QvGroup::traverse(QvState *state)
{
ANNOUNCE(QvGroup);
indent++;
for (int i = 0; i < getNumChildren(); i++)
getChild(i)->traverse(state);
indent--;
}
void
QvLevelOfDetail::traverse(QvState *state)
{
ANNOUNCE(QvLevelOfDetail);
indent++;
// ??? In a real implementation, this would choose a child based
// ??? on the projected screen areas.
if (getNumChildren() > 0)
getChild(0)->traverse(state);
indent--;
}
void
QvSeparator::traverse(QvState *state)
{
ANNOUNCE(QvSeparator);
state->push();
indent++;
for (int i = 0; i < getNumChildren(); i++)
getChild(i)->traverse(state);
indent--;
state->pop();
}
void
QvSwitch::traverse(QvState *state)
{
ANNOUNCE(QvSwitch);
indent++;
int which = whichChild.value;
if (which == QV_SWITCH_NONE)
;
else if (which == QV_SWITCH_ALL)
for (int i = 0; i < getNumChildren(); i++)
getChild(i)->traverse(state);
else
if (which < getNumChildren())
getChild(which)->traverse(state);
indent--;
}
void
QvTransformSeparator::traverse(QvState *state)
{
ANNOUNCE(QvTransformSeparator);
// We need to "push" just the transformation stack. We'll
// accomplish this by just pushing a no-op transformation onto
// that stack. When we "pop", we'll restore that stack to its
// previous state.
QvElement *markerElt = new QvElement;
markerElt->data = this;
markerElt->type = QvElement::NoOpTransform;
state->addElement(QvState::TransformationIndex, markerElt);
indent++;
for (int i = 0; i < getNumChildren(); i++)
getChild(i)->traverse(state);
indent--;
// Now do the "pop"
while (state->getTopElement(QvState::TransformationIndex) != markerElt)
state->popElement(QvState::TransformationIndex);
}
//////////////////////////////////////////////////////////////////////////////
//
// Properties.
//
//////////////////////////////////////////////////////////////////////////////
#define DO_PROPERTY(className, stackIndex) \
void \
className::traverse(QvState *state) \
{ \
ANNOUNCE(className); \
QvElement *elt = new QvElement; \
elt->data = this; \
state->addElement(QvState::stackIndex, elt); \
}
#define DO_TYPED_PROPERTY(className, stackIndex, eltType) \
void \
className::traverse(QvState *state) \
{ \
ANNOUNCE(className); \
QvElement *elt = new QvElement; \
elt->data = this; \
elt->type = QvElement::eltType; \
state->addElement(QvState::stackIndex, elt); \
}
void QvCoordinate3::traverse(QvState *state)
{
ANNOUNCE(QvCoordinate3);
QvElement *elt = new QvElement;
elt->data = this;
state->addElement(QvState::Coordinate3Index, elt);
//[MSH_START]
/*
for ( int i = 0; i < point.num; i++ )
printf( "point[%d]=%f %f %f\n", i, point.values[ i*3 ], point.values[ i*3 + 1 ], point.values[ i*3 + 2 ] );
*/
//[MSH_END]
printf( "---------------------------------------\n" );
}
//DO_PROPERTY(QvCoordinate3, Coordinate3Index)
//--------------------------------------------
DO_PROPERTY(QvMaterial, MaterialIndex)
DO_PROPERTY(QvMaterialBinding, MaterialBindingIndex)
DO_PROPERTY(QvNormal, NormalIndex)
DO_PROPERTY(QvNormalBinding, NormalBindingIndex)
DO_PROPERTY(QvShapeHints, ShapeHintsIndex)
DO_PROPERTY(QvTextureCoordinate2, TextureCoordinate2Index)
DO_PROPERTY(QvTexture2, Texture2Index)
DO_PROPERTY(QvTexture2Transform, Texture2TransformationIndex)
DO_TYPED_PROPERTY(QvDirectionalLight, LightIndex, DirectionalLight)
DO_TYPED_PROPERTY(QvPointLight, LightIndex, PointLight)
DO_TYPED_PROPERTY(QvSpotLight, LightIndex, SpotLight)
DO_TYPED_PROPERTY(QvOrthographicCamera, CameraIndex, OrthographicCamera)
DO_TYPED_PROPERTY(QvPerspectiveCamera, CameraIndex, PerspectiveCamera)
DO_TYPED_PROPERTY(QvTransform, TransformationIndex, Transform)
DO_TYPED_PROPERTY(QvRotation, TransformationIndex, Rotation)
DO_TYPED_PROPERTY(QvMatrixTransform, TransformationIndex, MatrixTransform)
DO_TYPED_PROPERTY(QvTranslation, TransformationIndex, Translation)
DO_TYPED_PROPERTY(QvScale, TransformationIndex, Scale)
//////////////////////////////////////////////////////////////////////////////
//
// Shapes.
//
//////////////////////////////////////////////////////////////////////////////
static void
printProperties(QvState *state)
{
printf("--------------------------------------------------------------\n");
state->print();
printf("--------------------------------------------------------------\n");
}
#define DO_SHAPE(className) \
void \
className::traverse(QvState *state) \
{ \
ANNOUNCE(className); \
printProperties(state); \
}
//[MSH_START]
/*
void QvCone::traverse(QvState *state)
{
ANNOUNCE(QvCone);
printf( "\tbottomRadius=%f\n", bottomRadius.value );
printf( "\theight=%f\n", height.value );
printf( "\tparts=%d\n", parts.value );
printf( "---------------------------------------\n" );
printProperties(state);
}
*/
//[MSH_END]
//[MSH_START]
//DO_SHAPE(QvSphere)
//DO_SHAPE(QvCone)
//DO_SHAPE(QvCube)
//DO_SHAPE(QvCylinder)
#include "BspObjectList.h"
#include "BRep.h"
void QvSphere::traverse(QvState *state)
{
ANNOUNCE(QvSphere);
BSPLIB_NAMESPACE::BRep brep( state );
brep.BuildFromSpherePrimitive( *this );
}
void QvCone::traverse(QvState *state)
{
ANNOUNCE(QvCone);
BSPLIB_NAMESPACE::BRep brep( state );
brep.BuildFromConePrimitive( *this );
}
void QvCube::traverse(QvState *state)
{
ANNOUNCE(QvCube);
BSPLIB_NAMESPACE::BRep brep( state );
brep.BuildFromCubePrimitive( *this );
}
void QvCylinder::traverse(QvState *state)
{
ANNOUNCE(QvCylinder);
BSPLIB_NAMESPACE::BRep brep( state );
brep.BuildFromCylinderPrimitive( *this );
}
void QvIndexedFaceSet::traverse(QvState *state)
{
ANNOUNCE(QvIndexedFaceSet);
/*
for ( int i = 0; i < coordIndex.num; i++ )
printf( "coordIndex[%d]=%d\n", i, coordIndex.values[ i ] );
printf( "---------------------------------------\n" );
*/
// build b-rep out of this indexed face set and current state
BSPLIB_NAMESPACE::BRep brep( state );
brep.BuildFromIndexedFaceSet( *this );
}
//[MSH_END]
//DO_SHAPE(QvIndexedFaceSet)
//--------------------------------------------
DO_SHAPE(QvIndexedLineSet)
DO_SHAPE(QvPointSet)
//////////////////////////////////////////////////////////////////////////////
//
// WWW-specific nodes.
//
//////////////////////////////////////////////////////////////////////////////
// ???
DEFAULT_TRAVERSE(QvWWWAnchor)
DEFAULT_TRAVERSE(QvWWWInline)
//////////////////////////////////////////////////////////////////////////////
//
// Default traversal methods. These nodes have no effects during traversal.
//
//////////////////////////////////////////////////////////////////////////////
DEFAULT_TRAVERSE(QvInfo)
DEFAULT_TRAVERSE(QvUnknownNode)
//////////////////////////////////////////////////////////////////////////////
#undef ANNOUNCE
#undef DEFAULT_TRAVERSE
#undef DO_PROPERTY
#undef DO_SHAPE
#undef DO_TYPED_PROPERTY
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