mirror of https://github.com/CGAL/cgal
Add transformed polygon soup items
This commit is contained in:
Mael Rouxel-Labbé
parent
3ee53a44be
commit
7d4f5a3b2b
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#include "Scene_aff_transformed_polygon_soup_item.h"
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#include <CGAL/Three/Viewer_interface.h>
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#include <CGAL/Three/Three.h>
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#include <CGAL/Three/Edge_container.h>
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#include <QApplication>
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using namespace CGAL::Three;
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Scene_aff_transformed_polygon_soup_item::
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Scene_aff_transformed_polygon_soup_item(Scene_polygon_soup_item* ps_item,
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const CGAL::qglviewer::Vec& pos)
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: Scene_aff_transformed_item(pos)
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{
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d = new Scene_aff_transformed_polygon_soup_item_priv(ps_item, pos);
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setEdgeContainer(0, new Edge_container(Viewer_interface::PROGRAM_NO_SELECTION, false));
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compute_bbox();
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invalidateOpenGLBuffers();
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connect(ps_item, &Scene_polygon_soup_item::itemChanged ,
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this, &Scene_aff_transformed_polygon_soup_item::updateCache);
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}
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Scene_aff_transformed_polygon_soup_item::
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~Scene_aff_transformed_polygon_soup_item()
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{
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delete d;
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}
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void
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Scene_aff_transformed_polygon_soup_item::
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updateCache()
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{
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compute_bbox();
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invalidateOpenGLBuffers();
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}
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QString
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Scene_aff_transformed_polygon_soup_item::
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toolTip() const
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{
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return QObject::tr("<p>Affine transformation of <b>%1</b></p>"
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"<p>Keep <b>Ctrl</b> pressed and use the arcball to define an affine transformation.<br />"
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"Press <b>S</b> to apply the affine transformation to a copy of <b>%1</b>.</p>")
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.arg(d->ps_item->name());
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}
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void
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Scene_aff_transformed_polygon_soup_item::
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invalidateOpenGLBuffers()
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{
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setBuffersFilled(false);
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getEdgeContainer(0)->reset_vbos(ALL);
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}
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void
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Scene_aff_transformed_polygon_soup_item::
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initializeBuffers(Viewer_interface *v) const
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{
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getEdgeContainer(0)->initializeBuffers(v);
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getEdgeContainer(0)->setFlatDataSize(d->nb_lines);
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d->positions_lines.clear();
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d->positions_lines.shrink_to_fit();
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}
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void
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Scene_aff_transformed_polygon_soup_item::
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compute_bbox() const
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{
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setBbox(d->ps_item->bbox());
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}
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void
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Scene_aff_transformed_polygon_soup_item::
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computeElements() const
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{
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d->compute_elements();
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getEdgeContainer(0)->allocate(Edge_container::Vertices,
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d->positions_lines.data(),
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static_cast<int>(d->positions_lines.size()*sizeof(float)));
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d->nb_lines = d->positions_lines.size();
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setBuffersFilled(true);
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}
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void
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Scene_aff_transformed_polygon_soup_item::
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drawEdges(CGAL::Three::Viewer_interface* viewer) const
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{
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if(!isInit(viewer))
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initGL(viewer);
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if(getBuffersFilled() && !getBuffersInit(viewer))
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{
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initializeBuffers(viewer);
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setBuffersInit(viewer, true);
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}
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if(!getBuffersFilled())
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{
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computeElements();
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initializeBuffers(viewer);
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}
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Edge_container* ec = getEdgeContainer(0);
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ec->setColor(this->color());
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ec->setFrameMatrix(this->getFMatrix());
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ec->draw(viewer, true);
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}
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#ifndef SCENE_AFF_TRANSFORMED_POLYGON_SOUP_ITEM_H
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#define SCENE_AFF_TRANSFORMED_POLYGON_SOUP_ITEM_H
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#if defined( scene_aff_transformed_item_EXPORTS)
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# define SCENE_AFF_TRANSFORMED_POLYGON_SOUP_ITEM_EXPORT Q_DECL_EXPORT
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#else
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# define SCENE_AFF_TRANSFORMED_POLYGON_SOUP_ITEM_EXPORT Q_DECL_IMPORT
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#endif
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#include "Kernel_type.h"
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#include "Scene_polygon_soup_item.h"
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#include "Scene_aff_transformed_item.h"
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#include <CGAL/Three/Scene_interface.h>
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#include <CGAL/Three/Scene_item.h>
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#include <CGAL/Three/Scene_item_rendering_helper.h>
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#include <CGAL/Three/Three.h>
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#include <CGAL/Qt/manipulatedFrame.h>
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#include <CGAL/Qt/qglviewer.h>
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#include <CGAL/Polygon_mesh_processing/bbox.h>
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#include <vector>
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using namespace CGAL::Three;
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struct Scene_aff_transformed_polygon_soup_item_priv
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{
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using Point = Kernel::Point_3;
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Scene_polygon_soup_item* ps_item;
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mutable std::vector<float> positions_lines;
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mutable std::size_t nb_lines;
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CGAL::qglviewer::Vec center_;
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public:
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Scene_aff_transformed_polygon_soup_item_priv(Scene_polygon_soup_item* ps_item,
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const CGAL::qglviewer::Vec& pos)
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: ps_item(ps_item),
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center_(pos)
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{
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nb_lines = 0;
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}
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~Scene_aff_transformed_polygon_soup_item_priv() { }
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void compute_elements() const
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{
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if(!ps_item)
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return;
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QApplication::setOverrideCursor(Qt::WaitCursor);
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const auto& points = ps_item->points();
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const auto& polygons = ps_item->polygons();
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for(std::size_t i=0; i<polygons.size(); ++i)
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{
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const std::size_t size = polygons[i].size();
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for(std::size_t j=0; j<size; ++j)
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{
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const std::size_t& i0 = polygons[i][j];
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const std::size_t& i1 = polygons[i][(j+1 < size) ? j+1: 0];
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const Point& a = points[i0];
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const Point& b = points[i1];
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positions_lines.push_back(a.x() - center_.x);
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positions_lines.push_back(a.y() - center_.y);
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positions_lines.push_back(a.z() - center_.z);
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positions_lines.push_back(b.x() - center_.x);
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positions_lines.push_back(b.y() - center_.y);
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positions_lines.push_back(b.z() - center_.z);
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}
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}
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QApplication::restoreOverrideCursor();
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}
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};
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class SCENE_AFF_TRANSFORMED_POLYGON_SOUP_ITEM_EXPORT Scene_aff_transformed_polygon_soup_item
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: public Scene_aff_transformed_item
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{
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Q_OBJECT
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protected:
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friend Scene_aff_transformed_polygon_soup_item_priv;
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Scene_aff_transformed_polygon_soup_item_priv* d;
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public:
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Scene_aff_transformed_polygon_soup_item(Scene_polygon_soup_item* item,
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const CGAL::qglviewer::Vec& pos);
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~Scene_aff_transformed_polygon_soup_item();
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Scene_polygon_soup_item* item() { return d->ps_item; }
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const CGAL::qglviewer::Vec& center() const Q_DECL_OVERRIDE { return d->center_; }
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CGAL::Three::Scene_item* clone() const Q_DECL_OVERRIDE { return nullptr; }
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QString name() const Q_DECL_OVERRIDE { return tr("%1_transformed").arg(d->ps_item->name()); }
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QString toolTip() const Q_DECL_OVERRIDE;
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void updateCache();
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bool isEmpty() const Q_DECL_OVERRIDE { return (d->nb_lines == 0); }
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virtual bool supportsRenderingMode(RenderingMode m) const Q_DECL_OVERRIDE { return m == Wireframe ; }
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virtual void invalidateOpenGLBuffers() Q_DECL_OVERRIDE;
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void initializeBuffers(CGAL::Three::Viewer_interface*) const Q_DECL_OVERRIDE;
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void compute_bbox() const Q_DECL_OVERRIDE;
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void computeElements() const Q_DECL_OVERRIDE;
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void drawEdges(CGAL::Three::Viewer_interface*) const Q_DECL_OVERRIDE;
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};
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#endif // SCENE_AFF_TRANSFORMED_POLYGON_SOUP_ITEM_H
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