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| #include "qquicklineextruder_p.h" |
| #include <QRandomGenerator> |
| #include <cmath> |
| |
| /*! |
| \qmltype LineShape |
| \instantiates QQuickLineExtruder |
| \inqmlmodule QtQuick.Particles |
| \inherits Shape |
| \brief Represents a line for affectors and emitters. |
| \ingroup qtquick-particles |
| |
| */ |
| |
| /*! |
| \qmlproperty bool QtQuick.Particles::LineShape::mirrored |
| |
| By default, the line goes from (0,0) to (width, height) of the item that |
| this shape is being applied to. |
| |
| If mirrored is set to true, this will be mirrored along the y axis. |
| The line will then go from (0,height) to (width, 0). |
| */ |
| |
| QQuickLineExtruder::QQuickLineExtruder(QObject *parent) : |
| QQuickParticleExtruder(parent), m_mirrored(false) |
| { |
| } |
| |
| QPointF QQuickLineExtruder::extrude(const QRectF &r) |
| { |
| qreal x,y; |
| if (!r.height()){ |
| x = r.width() * QRandomGenerator::global()->generateDouble(); |
| y = 0; |
| }else{ |
| y = r.height() * QRandomGenerator::global()->generateDouble(); |
| if (!r.width()){ |
| x = 0; |
| }else{ |
| x = r.width()/r.height() * y; |
| if (m_mirrored) |
| x = r.width() - x; |
| } |
| } |
| return QPointF(x,y); |
| } |
| |
| #include "moc_qquicklineextruder_p.cpp" |