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39
40#include <Qt3DQuickRender/private/quick3draycaster_p.h>
41#include <Qt3DQuickRender/private/quick3draycaster_p_p.h>
42#include <Qt3DCore/private/qscene_p.h>
43
44#include <Qt3DCore/QEntity>
45
46#include <QQmlEngine>
47#include <QJSValue>
48
49QT_BEGIN_NAMESPACE
50
51namespace Qt3DRender {
52namespace Render {
53namespace Quick {
54
55void Quick3DRayCasterPrivate::dispatchHits(const QAbstractRayCaster::Hits &hits)
56{
57 m_hits = hits;
58 updateHitEntites(hits&: m_hits, scene: m_scene);
59
60 Q_Q(Quick3DRayCaster);
61 if (!m_engine)
62 m_engine = qmlEngine(q->parent());
63
64 m_jsHits = convertHits(hits: m_hits, engine: m_engine);
65
66 bool v = q->blockNotifications(block: true);
67 emit q->hitsChanged(hits: m_jsHits);
68 q->blockNotifications(block: v);
69}
70
71QJSValue Quick3DRayCasterPrivate::convertHits(const QAbstractRayCaster::Hits &hits, QQmlEngine *engine)
72{
73 auto jsHits = engine->newArray(length: hits.length());
74 for (int i=0; i<hits.size(); i++) {
75 QJSValue v = engine->newObject();
76 v.setProperty(name: QLatin1String("type"), value: hits[i].type());
77 v.setProperty(name: QLatin1String("entity"), value: engine->newQObject(object: hits[i].entity()));
78 v.setProperty(name: QLatin1String("distance"), value: hits[i].distance());
79 {
80 QJSValue p = engine->newObject();
81 p.setProperty(name: QLatin1String("x"), value: hits[i].localIntersection().x());
82 p.setProperty(name: QLatin1String("y"), value: hits[i].localIntersection().y());
83 p.setProperty(name: QLatin1String("z"), value: hits[i].localIntersection().z());
84 v.setProperty(name: QLatin1String("localIntersection"), value: p);
85 }
86 {
87 QJSValue p = engine->newObject();
88 p.setProperty(name: QLatin1String("x"), value: hits[i].worldIntersection().x());
89 p.setProperty(name: QLatin1String("y"), value: hits[i].worldIntersection().y());
90 p.setProperty(name: QLatin1String("z"), value: hits[i].worldIntersection().z());
91 v.setProperty(name: QLatin1String("worldIntersection"), value: p);
92 }
93
94 switch (hits[i].type()) {
95 case Qt3DRender::QRayCasterHit::TriangleHit:
96 v.setProperty(name: QLatin1String("primitiveIndex"), value: hits[i].primitiveIndex());
97 v.setProperty(name: QLatin1String("vertex1Index"), value: hits[i].vertex1Index());
98 v.setProperty(name: QLatin1String("vertex2Index"), value: hits[i].vertex2Index());
99 v.setProperty(name: QLatin1String("vertex3Index"), value: hits[i].vertex3Index());
100 break;
101 case Qt3DRender::QRayCasterHit::LineHit:
102 v.setProperty(name: QLatin1String("primitiveIndex"), value: hits[i].primitiveIndex());
103 v.setProperty(name: QLatin1String("vertex1Index"), value: hits[i].vertex1Index());
104 v.setProperty(name: QLatin1String("vertex2Index"), value: hits[i].vertex2Index());
105 break;
106 case Qt3DRender::QRayCasterHit::PointHit:
107 v.setProperty(name: QLatin1String("primitiveIndex"), value: hits[i].primitiveIndex());
108 break;
109 default: break;
110 }
111
112 jsHits.setProperty(arrayIndex: i, value: v);
113 }
114
115 return jsHits;
116}
117
118void Quick3DRayCasterPrivate::appendLayer(QQmlListProperty<QLayer> *list, QLayer *layer)
119{
120 QAbstractRayCaster *filter = qobject_cast<QAbstractRayCaster *>(object: list->object);
121 if (filter)
122 filter->addLayer(layer);
123}
124
125QLayer *Quick3DRayCasterPrivate::layerAt(QQmlListProperty<QLayer> *list, int index)
126{
127 QAbstractRayCaster *filter = qobject_cast<QAbstractRayCaster *>(object: list->object);
128 if (filter)
129 return filter->layers().at(i: index);
130 return nullptr;
131}
132
133int Quick3DRayCasterPrivate::layerCount(QQmlListProperty<QLayer> *list)
134{
135 QAbstractRayCaster *filter = qobject_cast<QAbstractRayCaster *>(object: list->object);
136 if (filter)
137 return filter->layers().count();
138 return 0;
139}
140
141void Quick3DRayCasterPrivate::clearLayers(QQmlListProperty<QLayer> *list)
142{
143 QAbstractRayCaster *filter = qobject_cast<QAbstractRayCaster *>(object: list->object);
144 if (filter) {
145 const auto layers = filter->layers();
146 for (QLayer *layer : layers)
147 filter->removeLayer(layer);
148 }
149}
150
151Quick3DRayCaster::Quick3DRayCaster(QObject *parent)
152 : QRayCaster(*new Quick3DRayCasterPrivate(), qobject_cast<Qt3DCore::QNode *>(object: parent))
153{
154}
155
156QJSValue Quick3DRayCaster::hits() const
157{
158 Q_D(const Quick3DRayCaster);
159 return d->m_jsHits;
160}
161
162QQmlListProperty<Qt3DRender::QLayer> Qt3DRender::Render::Quick::Quick3DRayCaster::qmlLayers()
163{
164 return QQmlListProperty<QLayer>(this, 0,
165 &Quick3DRayCasterPrivate::appendLayer,
166 &Quick3DRayCasterPrivate::layerCount,
167 &Quick3DRayCasterPrivate::layerAt,
168 &Quick3DRayCasterPrivate::clearLayers);
169}
170
171} // namespace Quick
172} // namespace Render
173} // namespace Qt3DRender
174
175QT_END_NAMESPACE
176

source code of qt3d/src/quick3d/quick3drender/items/quick3draycaster.cpp