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| |
| #include "qquickpointdirection_p.h" |
| #include <QRandomGenerator> |
| |
| QT_BEGIN_NAMESPACE |
| |
| /*! |
| \qmltype PointDirection |
| \instantiates QQuickPointDirection |
| \inqmlmodule QtQuick.Particles |
| \ingroup qtquick-particles |
| \inherits Direction |
| \brief For specifying a direction that varies in x and y components. |
| |
| The PointDirection element allows both the specification of a direction by x and y components, |
| as well as varying the parameters by x or y component. |
| */ |
| /*! |
| \qmlproperty real QtQuick.Particles::PointDirection::x |
| */ |
| /*! |
| \qmlproperty real QtQuick.Particles::PointDirection::y |
| */ |
| /*! |
| \qmlproperty real QtQuick.Particles::PointDirection::xVariation |
| */ |
| /*! |
| \qmlproperty real QtQuick.Particles::PointDirection::yVariation |
| */ |
| |
| QQuickPointDirection::QQuickPointDirection(QObject *parent) : |
| QQuickDirection(parent) |
| , m_x(0) |
| , m_y(0) |
| , m_xVariation(0) |
| , m_yVariation(0) |
| { |
| } |
| |
| QPointF QQuickPointDirection::sample(const QPointF &) |
| { |
| QPointF ret; |
| ret.setX(m_x - m_xVariation + QRandomGenerator::global()->generateDouble() * m_xVariation * 2); |
| ret.setY(m_y - m_yVariation + QRandomGenerator::global()->generateDouble() * m_yVariation * 2); |
| return ret; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #include "moc_qquickpointdirection_p.cpp" |