mirror of https://github.com/CGAL/cgal
Rectangle selection working
(Visualization of selection-rectangle not working)
This commit is contained in:
Simon Giraudot
parent
02a4678159
commit
f68d3f8dee
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@ -431,7 +431,7 @@ if(CGAL_Qt5_FOUND AND Qt5_FOUND AND OPENGL_FOUND AND QGLVIEWER_FOUND)
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qt5_wrap_ui( ps_outliers_removal_UI_FILES Polyhedron_demo_point_set_outliers_removal_plugin.ui)
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polyhedron_demo_plugin(point_set_selection_plugin Polyhedron_demo_point_set_selection_plugin ${point_set_selectionUI_FILES})
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target_link_libraries(point_set_selection_plugin scene_points_with_normal_item)
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target_link_libraries(point_set_selection_plugin scene_points_with_normal_item scene_polylines_item)
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qt5_wrap_ui(point_set_shape_detectionUI_FILES Polyhedron_demo_point_set_shape_detection_plugin.ui)
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polyhedron_demo_plugin(point_set_shape_detection_plugin Polyhedron_demo_point_set_shape_detection_plugin ${point_set_shape_detectionUI_FILES})
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@ -1,3 +1,5 @@
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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
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#include <CGAL/Bbox_2.h>
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#include <QtCore/qglobal.h>
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#include "opengl_tools.h"
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@ -14,7 +16,141 @@
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#include <QMainWindow>
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#include <QApplication>
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#include <QEvent>
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#include <QKeyEvent>
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#include <QMouseEvent>
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#include <map>
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#include <fstream>
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// Class for visualizing selection
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// provides mouse selection functionality
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class Q_DECL_EXPORT Scene_point_set_selection_visualizer : public Scene_item
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{
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Q_OBJECT
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private:
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typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
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typedef K::Point_2 Point_2;
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typedef K::Point_3 Point_3;
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bool rectangle;
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std::vector<Point_2> contour_2d;
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Scene_polylines_item* polyline;
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CGAL::Bbox_2 domain_rectangle;
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public:
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Scene_point_set_selection_visualizer(bool rectangle)
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: rectangle (rectangle)
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{
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polyline = new Scene_polylines_item();
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polyline->polylines.push_back (Scene_polylines_item::Polyline());
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}
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~Scene_point_set_selection_visualizer() {
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}
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bool isFinite() const { return true; }
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bool isEmpty() const { return poly().empty(); }
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Bbox bbox() const {
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update_polyline ();
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return polyline->bbox ();
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}
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Scene_point_set_selection_visualizer* clone() const {
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return 0;
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}
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QString toolTip() const {
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return tr("%1").arg(name());
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}
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bool supportsRenderingMode(RenderingMode m) const {
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return (m == Wireframe);
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}
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void draw() const
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{
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::glLineWidth(3.f);
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polyline->setRbgColor(255, 0, 0);
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polyline->draw_edges();
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}
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void draw_edges() const {
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::glLineWidth(3.f);
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polyline->setRbgColor(255, 0, 0);
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polyline->draw_edges();
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}
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Scene_polylines_item::Polyline& poly() const
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{ return polyline->polylines.front(); }
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bool update_polyline () const
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{
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if (!(poly().empty()) && scene_point (contour_2d.back ()) == poly().back())
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return false;
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poly().clear();
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for (unsigned int i = 0; i < contour_2d.size (); ++ i)
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poly().push_back (scene_point (contour_2d[i]));
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return true;
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}
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Point_3 scene_point (const Point_2& p) const
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{
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QGLViewer* viewer = *QGLViewer::QGLViewerPool().begin();
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qglviewer::Camera* camera = viewer->camera();
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qglviewer::Vec vp (p.x(), p.y(), 0.);
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qglviewer::Vec vsp = camera->unprojectedCoordinatesOf (vp);
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return Point_3 (vsp.x, vsp.y, vsp.z);
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}
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void sample_mouse_path()
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{
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QGLViewer* viewer = *QGLViewer::QGLViewerPool().begin();
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const QPoint& p = viewer->mapFromGlobal(QCursor::pos());
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contour_2d.push_back (Point_2 (p.x (), p.y ()));
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if (update_polyline ())
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Q_EMIT itemChanged();
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}
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void apply_path()
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{
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update_polyline ();
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if (rectangle)
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{
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domain_rectangle = CGAL::bbox_2 (contour_2d.begin (), contour_2d.end ());
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}
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else
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{
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}
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}
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bool is_selected (qglviewer::Vec& p)
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{
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if (rectangle)
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{
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return (domain_rectangle.xmin () < p.x &&
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p.x < domain_rectangle.xmax () &&
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domain_rectangle.ymin () < p.y &&
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p.y < domain_rectangle.ymax ());
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}
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else
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{
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}
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}
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}; // end class Scene_point_set_selection_visualizer
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///////////////////////////////////////////////////////////////////////////////////////////////////
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class Polyhedron_demo_point_set_selection_plugin :
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@ -53,16 +189,127 @@ public:
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connect(ui_widget.Invert_selection_button, SIGNAL(clicked()), this, SLOT(on_Invert_selection_button_clicked()));
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connect(ui_widget.Erase_selected_points_button, SIGNAL(clicked()), this, SLOT(on_Erase_selected_points_button_clicked()));
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connect(ui_widget.Create_point_set_item_button, SIGNAL(clicked()), this, SLOT(on_Create_point_set_item_button_clicked()));
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rectangle = true;
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selection_mode = 0;
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visualizer = NULL;
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shift_pressing = false;
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QGLViewer* viewer = *QGLViewer::QGLViewerPool().begin();
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viewer->installEventFilter(this);
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mainWindow->installEventFilter(this);
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}
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protected:
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bool eventFilter(QObject *, QEvent *event) {
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if (dock_widget->isHidden() || !(dock_widget->isActiveWindow()))
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return false;
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Scene_points_with_normal_item* point_set_item
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= qobject_cast<Scene_points_with_normal_item*>(scene->item(scene->mainSelectionIndex()));
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if(!point_set_item) {
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return false;
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}
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int item_id = scene->item_id (point_set_item);
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if(event->type() == QEvent::KeyPress || event->type() == QEvent::KeyRelease) {
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QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
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Qt::KeyboardModifiers modifiers = keyEvent->modifiers();
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shift_pressing = modifiers.testFlag(Qt::ShiftModifier);
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}
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// mouse events
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if(shift_pressing && event->type() == QEvent::MouseButtonPress && !visualizer)
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{
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visualizer = new Scene_point_set_selection_visualizer(rectangle);
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visualizer->setName(tr("Point set selection visualizer"));
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visualizer->setRenderingMode (Wireframe);
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visualizer->setVisible (true);
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scene->addItem(visualizer);
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scene->setSelectedItem(item_id);
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visualizer->sample_mouse_path();
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}
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else if (event->type() == QEvent::MouseButtonRelease && visualizer)
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{
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visualizer->apply_path();
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select_points();
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scene->erase( scene->item_id(visualizer) );
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scene->setSelectedItem(item_id);
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visualizer = NULL;
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}
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else if (event->type() == QEvent::MouseMove && visualizer)
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{
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visualizer->sample_mouse_path();
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}
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return false;
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}
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void select_points()
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{
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Scene_points_with_normal_item* point_set_item = get_selected_item<Scene_points_with_normal_item>();
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if(!point_set_item)
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{
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print_message("Error: no point set selected!");
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return;
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}
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if (selection_mode == 0) // New selection
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{
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for(typename Point_set::iterator it = point_set_item->point_set()->begin ();
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it != point_set_item->point_set()->end(); ++ it)
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point_set_item->point_set()->select(&*it,false);
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}
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QGLViewer* viewer = *QGLViewer::QGLViewerPool().begin();
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qglviewer::Camera* camera = viewer->camera();
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for(typename Point_set::iterator it = point_set_item->point_set()->begin ();
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it != point_set_item->point_set()->end(); ++ it)
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{
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bool already_selected = it->is_selected ();
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qglviewer::Vec vp (it->x (), it->y (), it->z ());
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qglviewer::Vec vsp = camera->projectedCoordinatesOf (vp);
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bool now_selected = visualizer->is_selected (vsp);
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// NEW INTERSECTION or UNION
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// * Select point is now_selected
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if (selection_mode < 2 && now_selected)
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point_set_item->point_set()->select(&*it,true);
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// INTERSECTION
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// * Unselect point if it is not now_selected
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else if (selection_mode == 2)
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{
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if (already_selected && !now_selected)
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point_set_item->point_set()->select(&*it,false);
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}
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// DIFFERENCE
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// * Unselect point if it is now_selected
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else if (selection_mode == 3)
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{
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if (already_selected && now_selected)
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point_set_item->point_set()->select(&*it,false);
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}
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}
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point_set_item->changed();
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}
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public Q_SLOTS:
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void selection_action() {
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dock_widget->show();
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dock_widget->raise();
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Scene_points_with_normal_item* point_set_item
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= qobject_cast<Scene_points_with_normal_item*>(scene->item(scene->mainSelectionIndex()));
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if(!point_set_item)
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return;
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}
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// Select all
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@ -142,6 +389,15 @@ public Q_SLOTS:
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scene->addItem(new_item);
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}
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void on_Selection_tool_combo_box_changed (int index)
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{
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rectangle = (index == 0);
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}
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void on_Selection_mode_combo_box_changed (int index)
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{
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selection_mode = index;
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}
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private:
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@ -150,7 +406,10 @@ private:
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QDockWidget* dock_widget;
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Ui::PointSetSelection ui_widget;
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Scene_points_with_normal_item* point_set_item;
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bool rectangle;
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int selection_mode;
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Scene_point_set_selection_visualizer* visualizer;
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bool shift_pressing;
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}; // end Polyhedron_demo_point_set_selection_plugin
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