cgal/Lab/demo/Lab/Scene_item_rendering_helper...

293 lines
7.2 KiB
C++

#include <CGAL/Three/Scene_item_rendering_helper.h>
#include <QSlider>
#include <CGAL/Three/Viewer_interface.h>
#include <CGAL/Three/Triangle_container.h>
#include <CGAL/Three/Edge_container.h>
#include <CGAL/Three/Point_container.h>
#include <CGAL/Sqrt_extension.h>
#include <QWidgetAction>
#include <QMenu>
#include <QApplication>
#include <QThreadPool>
using namespace CGAL::Three;
struct PRIV{
PRIV(Scene_item_rendering_helper* item)
: item(item),
is_bbox_computed(false),
is_bbox_diag_computed(false),
_diag_bbox(0),
alphaSlider(nullptr),
are_buffers_filled(false)
{}
~PRIV()
{
if(alphaSlider)
delete alphaSlider;
for(std::size_t i = 0; i < triangle_containers.size(); ++i)
{
delete triangle_containers[i];
}
for(std::size_t i = 0; i < edge_containers.size(); ++i)
{
delete edge_containers[i];
}
for(std::size_t i = 0; i < point_containers.size(); ++i)
{
delete point_containers[i];
}
}
Scene_item_rendering_helper* item;
Scene_item::Bbox _bbox;
bool is_bbox_computed;
bool is_bbox_diag_computed;
double _diag_bbox;
QSlider* alphaSlider;
bool are_buffers_filled;
std::map<CGAL::Three::Viewer_interface*, bool> isinit;
QMap<CGAL::Three::Viewer_interface*, bool> buffers_init;
std::vector<CGAL::Three::Triangle_container*> triangle_containers;
std::vector<CGAL::Three::Edge_container*> edge_containers;
std::vector<CGAL::Three::Point_container*> point_containers;
void compute_diag_bbox();
};
Scene_item_rendering_helper::Scene_item_rendering_helper()
:Scene_item(0,0),
priv(new PRIV(this)){}
Scene_item_rendering_helper::~Scene_item_rendering_helper()
{
if(priv)
delete priv;
}
double Scene_item_rendering_helper::bboxDiagonal() const {
if(!priv->is_bbox_diag_computed)
priv->compute_diag_bbox();
priv->is_bbox_diag_computed = true;
return priv->_diag_bbox;
}
void PRIV::compute_diag_bbox()
{
const Scene_item::Bbox& b_box = item->bbox();
_diag_bbox = CGAL::approximate_sqrt(
CGAL::square(b_box.xmax() - b_box.xmin())
+ CGAL::square(b_box.ymax() - b_box.ymin())
+ CGAL::square(b_box.zmax() - b_box.zmin())
);
}
float Scene_item_rendering_helper::alpha() const
{
if(!priv->alphaSlider)
return 1.0f;
return static_cast<float>(priv->alphaSlider->value()) / 255.0f;
}
void Scene_item_rendering_helper::initGL(CGAL::Three::Viewer_interface* viewer) const
{
if(!priv->alphaSlider)
{
priv->alphaSlider = new QSlider(::Qt::Horizontal);
priv->alphaSlider->setMinimum(0);
priv->alphaSlider->setMaximum(255);
priv->alphaSlider->setValue(255);
}
for(Triangle_container* tc: priv->triangle_containers)
{
if(!tc->isGLInit(viewer))
tc->initGL(viewer);
}
for(Edge_container* ec: priv->edge_containers)
{
if(!ec->isGLInit(viewer))
ec->initGL(viewer);
}
for(Point_container* pc: priv->point_containers)
{
if(!pc->isGLInit(viewer))
pc->initGL(viewer);
}
if(!getBuffersFilled())
{
Gl_data_names flags;
flags = (ALL);
processData(flags);
}
priv->isinit[viewer] = true;
}
void Scene_item_rendering_helper::processData(Gl_data_names )const
{
computeElements();
priv->are_buffers_filled = true;
}
QMenu* Scene_item_rendering_helper::contextMenu()
{
QMenu* resMenu = Scene_item::contextMenu();
bool prop = property("menu_changed").toBool();
if(!prop)
{
QMenu *container = new QMenu(tr("Alpha value"));
QWidgetAction *sliderAction = new QWidgetAction(nullptr);
sliderAction->setDefaultWidget(priv->alphaSlider);
container->addAction(sliderAction);
resMenu->addMenu(container);
setProperty("menu_changed", true);
}
return resMenu;
}
void Scene_item_rendering_helper::setAlpha(int alpha)
{
if(!priv->alphaSlider)
{
priv->alphaSlider = new QSlider(::Qt::Horizontal);
priv->alphaSlider->setMinimum(0);
priv->alphaSlider->setMaximum(255);
priv->alphaSlider->setValue(255);
}
priv->alphaSlider->setValue(alpha);
redraw();
}
Scene_item::Bbox Scene_item_rendering_helper::bbox() const {
if(!priv->is_bbox_computed)
compute_bbox();
priv->is_bbox_computed = true;
return priv->_bbox;
}
bool Scene_item_rendering_helper::isInit(CGAL::Three::Viewer_interface* viewer)const
{
if(priv->isinit.find(viewer) != priv->isinit.end())
return priv->isinit[viewer];
return false;
}
QSlider* Scene_item_rendering_helper::alphaSlider() { return priv->alphaSlider; }
void Scene_item_rendering_helper::setBbox(Bbox b)const { priv->_bbox = b; }
Triangle_container* Scene_item_rendering_helper::getTriangleContainer(std::size_t id)const
{
return priv->triangle_containers[id];
}
Edge_container* Scene_item_rendering_helper::getEdgeContainer(std::size_t id)const
{
return priv->edge_containers[id];
}
Point_container* Scene_item_rendering_helper::getPointContainer(std::size_t id)const
{
return priv->point_containers[id];
}
void Scene_item_rendering_helper::setTriangleContainer(std::size_t id,
Triangle_container* tc)
{
if(priv->triangle_containers.size() <= id)
{
priv->triangle_containers.resize(id+1, nullptr);
}
if(priv->triangle_containers[id])
delete priv->triangle_containers[id];
priv->triangle_containers[id] = tc;
}
void Scene_item_rendering_helper::setEdgeContainer(std::size_t id,
Edge_container* ec)
{
if(priv->edge_containers.size() <= id)
{
priv->edge_containers.resize(id+1, nullptr);
}
if(priv->edge_containers[id])
delete priv->edge_containers[id];
priv->edge_containers[id] = ec;
}
void Scene_item_rendering_helper::setPointContainer(std::size_t id,
Point_container* pc)
{
if(priv->point_containers.size() <= id)
{
priv->point_containers.resize(id+1, nullptr);
}
if(priv->point_containers[id])
delete priv->point_containers[id];
priv->point_containers[id] = pc;
}
void Scene_item_rendering_helper::setBuffersFilled(bool b) const
{
priv->are_buffers_filled = b;
}
bool Scene_item_rendering_helper::getBuffersFilled()const
{
return priv->are_buffers_filled;
}
bool Scene_item_rendering_helper::getBuffersInit(Viewer_interface* viewer) const
{
return priv->buffers_init[viewer];
}
void Scene_item_rendering_helper::setBuffersInit(Viewer_interface* viewer, bool val)const
{
priv->buffers_init[viewer] = val;
}
void Scene_item_rendering_helper::removeViewer(Viewer_interface *viewer)
{
for(Triangle_container* tc: priv->triangle_containers)
{
tc->removeViewer(viewer);
}
for(Edge_container* ec: priv->edge_containers)
{
ec->removeViewer(viewer);
}
for(Point_container* pc: priv->point_containers)
{
pc->removeViewer(viewer);
}
}
void Scene_item_rendering_helper::newViewer(Viewer_interface *viewer)
{
viewer->makeCurrent();
for(Triangle_container* tc: priv->triangle_containers)
{
if(!tc->isGLInit(viewer))
tc->initGL(viewer);
}
for(Edge_container* ec: priv->edge_containers)
{
if(!ec->isGLInit(viewer))
ec->initGL(viewer);
}
for(Point_container* pc: priv->point_containers)
{
if(!pc->isGLInit(viewer))
pc->initGL(viewer);
}
//call function that recomputes vao binding
initializeBuffers(viewer);
}