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/***************************************************************************
* Copyright (c) 2007 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include <sstream>
#include <Inventor/SbBox.h>
#include <Inventor/actions/SoGLRenderAction.h>
#include <Inventor/elements/SoLazyElement.h>
#include <Inventor/misc/SoState.h>
#include <Inventor/nodes/SoText2.h>
#include <Inventor/nodes/SoTransform.h>
#include "SoFCBoundingBox.h"
using namespace Gui;
SO_NODE_SOURCE(SoFCBoundingBox)
// vertices used to create a box
static const int32_t bBoxVerts[8][3]
= {{0, 0, 0}, {1, 0, 0}, {1, 1, 0}, {0, 1, 0}, {0, 0, 1}, {1, 0, 1}, {1, 1, 1}, {0, 1, 1}};
// indexes used to create the edges
static const int32_t bBoxEdges[36] = {0, 1, -1, 1, 2, -1, 2, 3, -1, 3, 0, -1, 4, 5, -1, 5, 6, -1,
6, 7, -1, 7, 4, -1, 0, 4, -1, 1, 5, -1, 2, 6, -1, 3, 7, -1};
void SoFCBoundingBox::initClass()
{
SO_NODE_INIT_CLASS(SoFCBoundingBox, SoShape, "Shape");
}
SoFCBoundingBox::SoFCBoundingBox()
{
SO_NODE_CONSTRUCTOR(SoFCBoundingBox);
SO_NODE_ADD_FIELD(minBounds, (-1.0, -1.0, -1.0));
SO_NODE_ADD_FIELD(maxBounds, (1.0, 1.0, 1.0));
SO_NODE_ADD_FIELD(coordsOn, (true));
SO_NODE_ADD_FIELD(dimensionsOn, (true));
root = new SoSeparator();
auto bboxSep = new SoSeparator();
bboxCoords = new SoCoordinate3();
bboxCoords->point.setNum(8);
bboxSep->addChild(bboxCoords);
root->addChild(bboxSep);
// the lines of the box
bboxLines = new SoIndexedLineSet();
bboxLines->coordIndex.setNum(36);
bboxLines->coordIndex.setValues(0, 36, bBoxEdges);
bboxSep->addChild(bboxLines);
// create the text nodes, including a transform for each vertice offset
textSep = new SoSeparator();
for (int i = 0; i < 8; i++) {
auto temp = new SoSeparator();
auto trans = new SoTransform();
temp->addChild(trans);
auto text = new SoText2();
text->justification.setValue(SoText2::CENTER);
temp->addChild(text);
textSep->addChild(temp);
}
// create the text nodes, including a transform for each dimension
dimSep = new SoSeparator();
for (int i = 0; i < 3; i++) {
auto temp = new SoSeparator();
auto trans = new SoTransform();
temp->addChild(trans);
auto text = new SoText2();
text->justification.setValue(SoText2::CENTER);
temp->addChild(text);
dimSep->addChild(temp);
}
root->addChild(textSep);
root->addChild(dimSep);
root->ref();
}
SoFCBoundingBox::~SoFCBoundingBox()
{
root->unref();
}
void SoFCBoundingBox::GLRender(SoGLRenderAction* action)
{
SbVec3f corner[2], ctr, *vptr;
SbBool coord, dimension;
// grab the current state
// SoState *state = action->getState();
if (!shouldGLRender(action)) {
return;
}
// get the latest values from the fields
corner[0] = minBounds.getValue();
corner[1] = maxBounds.getValue();
coord = coordsOn.getValue();
dimension = dimensionsOn.getValue();
// set the coordinates for the LineSet to point to
vptr = bboxCoords->point.startEditing();
for (int i = 0; i < 8; i++) {
for (int j = 0; j < 3; j++) {
vptr[i][j] = corner[bBoxVerts[i][j]][j];
}
}
// if coord is true then set the text nodes
if (coord) {
ctr = (corner[1] - corner[0]) / 2.0f;
for (int i = 0; i < 8; i++) {
// create the string for the text
std::stringstream str;
str.precision(2);
str.setf(std::ios::fixed | std::ios::showpoint);
str << "(" << vptr[i][0] << "," << vptr[i][1] << "," << vptr[i][2] << ")";
SoSeparator* sep = static_cast<SoSeparator*>(textSep->getChild(i));
SoTransform* trans = static_cast<SoTransform*>(sep->getChild(0));
trans->translation.setValue(vptr[i].getValue());
SoText2* t = static_cast<SoText2*>(sep->getChild(1));
t->string.setValue(str.str().c_str());
}
textSep->ref();
if (root->findChild(textSep) < 0) {
root->addChild(textSep);
}
}
else {
if (root->findChild(textSep) >= 0) {
root->removeChild(textSep);
}
}
// if dimension is true then set the text nodes
if (dimension) {
ctr = (corner[1] - corner[0]) / 2.0f;
for (int i = 0; i < 3; i++) {
// create the string for the text
std::stringstream str;
str.precision(2);
str.setf(std::ios::fixed | std::ios::showpoint);
str << (2.0f * ctr[i]);
SoSeparator* sep = static_cast<SoSeparator*>(dimSep->getChild(i));
SoTransform* trans = static_cast<SoTransform*>(sep->getChild(0));
SbVec3f point = corner[0];
point[i] += ctr[i];
trans->translation.setValue(point.getValue());
SoText2* t = static_cast<SoText2*>(sep->getChild(1));
t->string.setValue(str.str().c_str());
}
dimSep->ref();
if (root->findChild(dimSep) < 0) {
root->addChild(dimSep);
}
}
else {
if (root->findChild(dimSep) >= 0) {
root->removeChild(dimSep);
}
}
bboxCoords->point.finishEditing();
// Avoid shading
SoState* state = action->getState();
state->push();
SoLazyElement::setLightModel(state, SoLazyElement::BASE_COLOR);
root->GLRender(action);
state->pop();
}
void SoFCBoundingBox::generatePrimitives(SoAction* /*action*/)
{}
void SoFCBoundingBox::computeBBox(SoAction* /*action*/, SbBox3f& box, SbVec3f& center)
{
center = (minBounds.getValue() + maxBounds.getValue()) / 2.0f;
box.setBounds(minBounds.getValue(), maxBounds.getValue());
}
void SoFCBoundingBox::finish()
{
atexit_cleanup();
}
// ---------------------------------------------------------------
SO_NODE_SOURCE(SoSkipBoundingGroup)
/*!
Constructor.
*/
SoSkipBoundingGroup::SoSkipBoundingGroup()
{
SO_NODE_CONSTRUCTOR(SoSkipBoundingGroup);
SO_NODE_ADD_FIELD(mode, (INCLUDE_BBOX));
SO_NODE_DEFINE_ENUM_VALUE(Modes, INCLUDE_BBOX);
SO_NODE_DEFINE_ENUM_VALUE(Modes, EXCLUDE_BBOX);
SO_NODE_SET_SF_ENUM_TYPE(mode, Modes);
}
/*!
Destructor.
*/
SoSkipBoundingGroup::~SoSkipBoundingGroup() = default;
void SoSkipBoundingGroup::initClass()
{
SO_NODE_INIT_CLASS(SoSkipBoundingGroup, SoGroup, "Group");
}
void SoSkipBoundingGroup::finish()
{
atexit_cleanup();
}
void SoSkipBoundingGroup::getBoundingBox(SoGetBoundingBoxAction* action)
{
if (mode.getValue() == INCLUDE_BBOX) {
inherited::getBoundingBox(action);
}
}
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