#include <qdeclarativeparticles_p.h>

Inheritance diagram for QDeclarativeParticleMotionWander:

Classes
struct	Data

Signals
void	paceChanged ()

void	xvarianceChanged ()

void	yvarianceChanged ()

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Public Functions
virtual void	advance (QDeclarativeParticle &, int interval)
	Move the particle to its new position. More...

virtual void	created (QDeclarativeParticle &)
	The particle has just been created. More...

virtual void	destroy (QDeclarativeParticle &)
	The particle is about to be destroyed. More...

qreal	pace () const

	QDeclarativeParticleMotionWander ()

void	setPace (qreal pace)

void	setXVariance (qreal var)

void	setYVariance (qreal var)

qreal	xVariance () const

qreal	yVariance () const

Public Functions inherited from QDeclarativeParticleMotion
	QDeclarativeParticleMotion (QObject *parent=0)
	Constructs a QDeclarativeParticleMotion with parent object parent. More...

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

bool	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Public Variables
qreal	pace

qreal	xvariance

qreal	yvariance

Properties
qreal	_pace

qreal	_xvariance

qreal	_yvariance

QDeclarativeParticles *	particles

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

static bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...

virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 109 of file qdeclarativeparticles_p.h.

Constructors and Destructors

◆ QDeclarativeParticleMotionWander()

QDeclarativeParticleMotionWander::QDeclarativeParticleMotionWander ( )

inline

Definition at line 113 of file qdeclarativeparticles_p.h.

114 : QDeclarativeParticleMotion(), particles(0), _xvariance(0), _yvariance(0), _pace(100) {}

QDeclarativeParticleMotion::QDeclarativeParticleMotion

QDeclarativeParticleMotion(QObject *parent=0)

Constructs a QDeclarativeParticleMotion with parent object parent.

Definition: qdeclarativeparticles.cpp:125

QDeclarativeParticleMotionWander::_pace

qreal _pace

Definition: qdeclarativeparticles_p.h:150

QDeclarativeParticleMotionWander::_xvariance

qreal _xvariance

Definition: qdeclarativeparticles_p.h:148

QDeclarativeParticleMotionWander::_yvariance

qreal _yvariance

Definition: qdeclarativeparticles_p.h:149

QDeclarativeParticleMotionWander::particles

QDeclarativeParticles * particles

Definition: qdeclarativeparticles_p.h:147

Functions

◆ advance()

void QDeclarativeParticleMotionWander::advance	(	QDeclarativeParticle &	particle,
		int	interval
	)

virtual

Move the particle to its new position.

interval is the number of milliseconds elapsed since it was last moved.

Reimplemented from QDeclarativeParticleMotion.

Definition at line 342 of file qdeclarativeparticles.cpp.

 {
     if (!particles)
         particles = qobject_cast<QDeclarativeParticles*>(parent());
     if (particles) {
         Data *d = (Data*)p.data;
         if (_xvariance != 0.) {
             qreal xdiff = p.x_velocity - d->x_targetV;
             if ((xdiff > d->x_peak && d->x_var > 0.0) || (xdiff < -d->x_peak && d->x_var < 0.0)) {
                 d->x_var = -d->x_var;
                 d->x_peak = _xvariance + _xvariance * qreal(qrand()) / RAND_MAX;
             }
             p.x_velocity += d->x_var * interval;
         }
         p.x += interval * p.x_velocity;
 
         if (_yvariance != 0.) {
             qreal ydiff = p.y_velocity - d->y_targetV;
             if ((ydiff > d->y_peak && d->y_var > 0.0) || (ydiff < -d->y_peak && d->y_var < 0.0)) {
                 d->y_var = -d->y_var;
                 d->y_peak = _yvariance + _yvariance * qreal(qrand()) / RAND_MAX;
             }
             p.y_velocity += d->y_var * interval;
         }
         p.y += interval * p.y_velocity;
     }
 }

◆ created()

void QDeclarativeParticleMotionWander::created ( QDeclarativeParticle & particle )

virtual

The particle has just been created.

Some motion strategies require additional state information. This can be allocated by this function.

Reimplemented from QDeclarativeParticleMotion.

Definition at line 370 of file qdeclarativeparticles.cpp.

 {
     if (!p.data) {
         Data *d = new Data;
         p.data = (void*)d;
         d->x_targetV = p.x_velocity;
         d->y_targetV = p.y_velocity;
         d->x_peak = _xvariance;
         d->y_peak = _yvariance;
         d->x_var = _pace * qreal(qrand()) / RAND_MAX / 1000.0;
         d->y_var = _pace * qreal(qrand()) / RAND_MAX / 1000.0;
     }
 }

◆ destroy()

void QDeclarativeParticleMotionWander::destroy ( QDeclarativeParticle & particle )

virtual

The particle is about to be destroyed.

Any additional memory that has been allocated for the particle should be freed.

Reimplemented from QDeclarativeParticleMotion.

Definition at line 384 of file qdeclarativeparticles.cpp.

 {
     if (p.data)
         delete (Data*)p.data;
 }

◆ pace()

qreal QDeclarativeParticleMotionWander::pace ( ) const

inline

Definition at line 138 of file qdeclarativeparticles_p.h.

138 { return _pace * 1000.0; }

QDeclarativeParticleMotionWander::_pace

qreal _pace

Definition: qdeclarativeparticles_p.h:150

◆ paceChanged

void QDeclarativeParticleMotionWander::paceChanged ( )

signal

◆ setPace()

void QDeclarativeParticleMotionWander::setPace ( qreal pace )

Definition at line 408 of file qdeclarativeparticles.cpp.

 {
     qreal scaledPace = pace / 1000.0;
     if (qFuzzyCompare(scaledPace, _pace))
         return;
     _pace = scaledPace;
     emit paceChanged();
 }

◆ setXVariance()

void QDeclarativeParticleMotionWander::setXVariance ( qreal var )

Definition at line 390 of file qdeclarativeparticles.cpp.

 {
     qreal scaledVar = var / 1000.0;
     if (qFuzzyCompare(scaledVar, _xvariance))
         return;
     _xvariance = scaledVar;
     emit xvarianceChanged();
 }

◆ setYVariance()

void QDeclarativeParticleMotionWander::setYVariance ( qreal var )

Definition at line 399 of file qdeclarativeparticles.cpp.

 {
     qreal scaledVar = var / 1000.0;
     if (qFuzzyCompare(scaledVar, _yvariance))
         return;
     _yvariance = scaledVar;
     emit yvarianceChanged();
 }

◆ xVariance()

qreal QDeclarativeParticleMotionWander::xVariance ( ) const

inline

Definition at line 130 of file qdeclarativeparticles_p.h.

130 { return _xvariance * 1000.0; }

QDeclarativeParticleMotionWander::_xvariance

qreal _xvariance

Definition: qdeclarativeparticles_p.h:148

◆ xvarianceChanged

void QDeclarativeParticleMotionWander::xvarianceChanged ( )

signal

◆ yVariance()

qreal QDeclarativeParticleMotionWander::yVariance ( ) const

inline

Definition at line 134 of file qdeclarativeparticles_p.h.

134 { return _yvariance * 1000.0; }

QDeclarativeParticleMotionWander::_yvariance

qreal _yvariance

Definition: qdeclarativeparticles_p.h:149

◆ yvarianceChanged

void QDeclarativeParticleMotionWander::yvarianceChanged ( )

signal

Properties

◆ _pace

qreal QDeclarativeParticleMotionWander::_pace

private

Definition at line 150 of file qdeclarativeparticles_p.h.

◆ _xvariance

qreal QDeclarativeParticleMotionWander::_xvariance

private

Definition at line 148 of file qdeclarativeparticles_p.h.

◆ _yvariance

qreal QDeclarativeParticleMotionWander::_yvariance

private

Definition at line 149 of file qdeclarativeparticles_p.h.

◆ pace

qreal QDeclarativeParticleMotionWander::pace

Definition at line 137 of file qdeclarativeparticles_p.h.

◆ particles

QDeclarativeParticles* QDeclarativeParticleMotionWander::particles

private

Definition at line 147 of file qdeclarativeparticles_p.h.

◆ xvariance

qreal QDeclarativeParticleMotionWander::xvariance

Definition at line 129 of file qdeclarativeparticles_p.h.

◆ yvariance

qreal QDeclarativeParticleMotionWander::yvariance

Definition at line 133 of file qdeclarativeparticles_p.h.

The documentation for this class was generated from the following files:

/src/imports/particles/qdeclarativeparticles_p.h
/src/imports/particles/qdeclarativeparticles.cpp

Classes

Signals

Public Functions

Public Variables

Properties

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QDeclarativeParticleMotionWander()

Functions

◆ advance()

◆ created()

◆ destroy()

◆ pace()

◆ paceChanged

◆ setPace()

◆ setXVariance()

◆ setYVariance()

◆ xVariance()

◆ xvarianceChanged

◆ yVariance()

◆ yvarianceChanged

Properties

◆ _pace

◆ _xvariance

◆ _yvariance

◆ pace

◆ particles

◆ xvariance

◆ yvariance