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39
40#include "qquickrectangleextruder_p.h"
41#include <QRandomGenerator>
42
43QT_BEGIN_NAMESPACE
44
45/*!
46 \qmltype RectangleShape
47 \instantiates QQuickRectangleExtruder
48 \inqmlmodule QtQuick.Particles
49 \brief For specifying an area for affectors and emitter.
50 \ingroup qtquick-particles
51
52 Just a rectangle.
53*/
54
55QQuickRectangleExtruder::QQuickRectangleExtruder(QObject *parent) :
56 QQuickParticleExtruder(parent), m_fill(true)
57{
58}
59
60QPointF QQuickRectangleExtruder::extrude(const QRectF &rect)
61{
62 if (m_fill)
63 return QPointF(QRandomGenerator::global()->generateDouble() * rect.width() + rect.x(),
64 QRandomGenerator::global()->generateDouble() * rect.height() + rect.y());
65 int side = QRandomGenerator::global()->bounded(highest: 4);
66 switch (side){//TODO: Doesn't this overlap the corners?
67 case 0:
68 return QPointF(rect.x(),
69 QRandomGenerator::global()->generateDouble() * rect.height() + rect.y());
70 case 1:
71 return QPointF(rect.width() + rect.x(),
72 QRandomGenerator::global()->generateDouble() * rect.height() + rect.y());
73 case 2:
74 return QPointF(QRandomGenerator::global()->generateDouble() * rect.width() + rect.x(),
75 rect.y());
76 default:
77 return QPointF(QRandomGenerator::global()->generateDouble() * rect.width() + rect.x(),
78 rect.height() + rect.y());
79 }
80}
81
82bool QQuickRectangleExtruder::contains(const QRectF &bounds, const QPointF &point)
83{
84 return bounds.contains(p: point);
85}
86
87QT_END_NAMESPACE
88
89#include "moc_qquickrectangleextruder_p.cpp"
90

source code of qtdeclarative/src/particles/qquickrectangleextruder.cpp