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Diffstat (limited to 'tool_src/QvLib/QvTraverse.cpp')
| -rw-r--r-- | tool_src/QvLib/QvTraverse.cpp | 317 |
1 files changed, 317 insertions, 0 deletions
diff --git a/tool_src/QvLib/QvTraverse.cpp b/tool_src/QvLib/QvTraverse.cpp new file mode 100644 index 0000000..07da40c --- /dev/null +++ b/tool_src/QvLib/QvTraverse.cpp @@ -0,0 +1,317 @@ +#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 |