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/***************************************************************************
* Copyright (c) 2024 Kacper Donat <kacper@kadet.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 <FCConfig.h>
#ifdef FC_OS_MACOSX
# include <OpenGL/gl.h>
#else
# ifdef FC_OS_WIN32
# include <windows.h>
# endif
# include <GL/gl.h>
#endif
#include <Inventor/elements/SoCacheElement.h>
#include <algorithm>
#include "So3DAnnotation.h"
#include <Gui/Selection/Selection.h>
using namespace Gui;
SO_ELEMENT_SOURCE(SoDelayedAnnotationsElement);
bool SoDelayedAnnotationsElement::isProcessingDelayedPaths = false;
void SoDelayedAnnotationsElement::init(SoState* state)
{
SoElement::init(state);
paths.clear();
}
void SoDelayedAnnotationsElement::initClass()
{
SO_ELEMENT_INIT_CLASS(SoDelayedAnnotationsElement, inherited);
SO_ENABLE(SoGLRenderAction, SoDelayedAnnotationsElement);
}
void SoDelayedAnnotationsElement::addDelayedPath(SoState* state, SoPath* path, int priority)
{
auto elt = static_cast<SoDelayedAnnotationsElement*>(state->getElementNoPush(classStackIndex));
// add to unified storage with specified priority (default = 0)
elt->paths.emplace_back(path, priority);
}
SoPathList SoDelayedAnnotationsElement::getDelayedPaths(SoState* state)
{
auto elt = static_cast<SoDelayedAnnotationsElement*>(state->getElementNoPush(classStackIndex));
if (elt->paths.empty()) {
return {};
}
// sort by priority (lower numbers render first)
std::stable_sort(
elt->paths.begin(),
elt->paths.end(),
[](const PriorityPath& a, const PriorityPath& b) { return a.priority < b.priority; }
);
SoPathList sortedPaths;
for (const auto& priorityPath : elt->paths) {
sortedPaths.append(priorityPath.path);
}
// Clear storage
elt->paths.clear();
return sortedPaths;
}
void SoDelayedAnnotationsElement::processDelayedPathsWithPriority(SoState* state, SoGLRenderAction* action)
{
auto elt = static_cast<SoDelayedAnnotationsElement*>(state->getElementNoPush(classStackIndex));
if (elt->paths.empty()) {
return;
}
std::stable_sort(
elt->paths.begin(),
elt->paths.end(),
[](const PriorityPath& a, const PriorityPath& b) { return a.priority < b.priority; }
);
isProcessingDelayedPaths = true;
for (const auto& priorityPath : elt->paths) {
SoPathList singlePath;
singlePath.append(priorityPath.path);
action->apply(singlePath, TRUE);
}
isProcessingDelayedPaths = false;
elt->paths.clear();
}
SO_NODE_SOURCE(So3DAnnotation);
bool So3DAnnotation::render = false;
So3DAnnotation::So3DAnnotation()
{
SO_NODE_CONSTRUCTOR(So3DAnnotation);
}
void So3DAnnotation::initClass()
{
SO_NODE_INIT_CLASS(So3DAnnotation, SoSeparator, "3DAnnotation");
}
void So3DAnnotation::GLRender(SoGLRenderAction* action)
{
switch (action->getCurPathCode()) {
case SoAction::NO_PATH:
case SoAction::BELOW_PATH:
this->GLRenderBelowPath(action);
break;
case SoAction::OFF_PATH:
// do nothing. Separator will reset state.
break;
case SoAction::IN_PATH:
this->GLRenderInPath(action);
break;
}
}
void So3DAnnotation::GLRenderBelowPath(SoGLRenderAction* action)
{
if (render) {
inherited::GLRenderBelowPath(action);
}
else {
SoCacheElement::invalidate(action->getState());
SoDelayedAnnotationsElement::addDelayedPath(action->getState(), action->getCurPath()->copy());
}
}
void So3DAnnotation::GLRenderInPath(SoGLRenderAction* action)
{
if (render) {
inherited::GLRenderInPath(action);
}
else {
SoCacheElement::invalidate(action->getState());
SoDelayedAnnotationsElement::addDelayedPath(action->getState(), action->getCurPath()->copy());
}
}
void So3DAnnotation::GLRenderOffPath(SoGLRenderAction* /* action */)
{
// should never render, this is a separator node
}
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