\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)
CGAL 4.12 - Three
Three/Example_plugin/Basic_item_plugin.cpp
#include <CGAL/Three/Polyhedron_demo_plugin_interface.h>
#include <QApplication>
#include <QObject>
#include <QAction>
#include <QMainWindow>
#include <QInputDialog>
#include "Messages_interface.h"
#include "CGAL/Three/Scene_group_item.h"
#include "Scene_plane_item.h"
//This plugin crates an action in Operations that displays the name of the selected item,
//adds a scene_plane_item to the scene, and adds the selected item and the plane to a new group.
class BasicItemPlugin :
public QObject,
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "com.geometryfactory.PolyhedronDemo.PluginInterface/1.0")
public:
//This plugin is only applicable if there is exactly one selected item.
bool applicable(QAction*) const Q_DECL_OVERRIDE
{
return scene->selectionIndices().size() ==1;
}
//the list of the actions of the plugin.
QList<QAction*> actions() const Q_DECL_OVERRIDE
{
return _actions;
}
//this acts like a constructor for the plugin. It gets the references to the mainwindow and the scene, and connects the action.
void init(QMainWindow* mw, CGAL::Three::Scene_interface* sc, Messages_interface* mi) Q_DECL_OVERRIDE
{
//gets the reference to the message interface, to display text in the console widget
this->messageInterface = mi;
//get the references
this->scene = sc;
this->mw = mw;
//creates the action
QAction *actionHelloWorld= new QAction(QString("Create a group"), mw);
//specifies the subMenu
actionHelloWorld->setProperty("submenuName", "Basic");
//links the action
if(actionHelloWorld) {
connect(actionHelloWorld, SIGNAL(triggered()),
this, SLOT(helloWorld()));
_actions << actionHelloWorld;
}
}
private Q_SLOTS:
void helloWorld()
{
//get a reference to the selected item.
CGAL::Three::Scene_item *item = scene->item(scene->mainSelectionIndex());
messageInterface->information(QString("The selected item's name is : %1").arg(item->name()));
//creates a plane item
Scene_plane_item *new_item = new Scene_plane_item(scene);
new_item->setName("Trivial Plane");
new_item->setColor(Qt::blue);
new_item->setNormal(0.0,0.0,1.0);
scene->addItem(new_item);
//Create a new group
Scene_group_item *group = new Scene_group_item("New group");
//add it to the scene
scene->addItem(group);
//Then give it its children
scene->changeGroup(item, group);
scene->changeGroup(new_item,group);
}
private:
QList<QAction*> _actions;
Messages_interface* messageInterface;
//The reference to the scene
//The reference to the main window
QMainWindow* mw;
};
#include "Basic_item_plugin.moc"