Extract Particles code to an independent library

QtQuick clients that do not use particles features should not have
to load these classes.

Task-number: QTBUG-25178
Change-Id: Ib15f7655dc4d821595e06f9160d2770375279027
Reviewed-by: Glenn Watson <glenn.watson@nokia.com>

1 files changed, 0 insertions, 181 deletions

diff --git a/src/quick/particles/qquickwander.cpp b/src/quick/particles/qquickwander.cpp
deleted file mode 100644
index 0f9a5f069b..0000000000
--- a/src/quick/particles/qquickwander.cpp
+++ /dev/null
@@ -1,181 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/
-**
-** This file is part of the QtQuick module of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qquickwander_p.h"
-#include "qquickparticlesystem_p.h"//for ParticlesVertices
-QT_BEGIN_NAMESPACE
-/*!
-    \qmlclass Wander QQuickWanderAffector
-    \inqmlmodule QtQuick.Particles 2
-    \inherits Affector
-    \brief The Wander affector allows particles to randomly vary their trajectory.
-
-*/
-/*!
-    \qmlproperty real QtQuick.Particles2::Wander::pace
-
-    Maximum attribute change per second.
-*/
-/*!
-    \qmlproperty real QtQuick.Particles2::Wander::xVariance
-
-    Maximum attribute x value (as a result of Wander).
-
-    If unset, Wander will not affect x values.
-*/
-/*!
-    \qmlproperty real QtQuick.Particles2::Wander::yVariance
-
-    Maximum attribute y value (as a result of Wander).
-
-    If unset, Wander will not affect y values.
-*/
-/*!
-    \qmlproperty AffectableParameter QtQuick.Particles2::Wander::affectedParameter
-
-    What attribute of particles is directly affected.
-    \list
-    \li PointAttractor.Position
-    \li PointAttractor.Velocity
-    \li PointAttractor.Acceleration
-    \endlist
-*/
-
-QQuickWanderAffector::QQuickWanderAffector(QQuickItem *parent) :
-    QQuickParticleAffector(parent), m_xVariance(0), m_yVariance(0), m_pace(0)
-    , m_affectedParameter(Velocity)
-{
-    m_needsReset = true;
-}
-
-QQuickWanderAffector::~QQuickWanderAffector()
-{
-    for (QHash<int, WanderData*>::const_iterator iter=m_wanderData.constBegin();
-        iter != m_wanderData.constEnd(); iter++)
-        delete (*iter);
-}
-
-WanderData* QQuickWanderAffector::getData(int idx)
-{
-    if (m_wanderData.contains(idx))
-        return m_wanderData[idx];
-    WanderData* d = new WanderData;
-    d->x_vel = 0;
-    d->y_vel = 0;
-    d->x_peak = m_xVariance;
-    d->y_peak = m_yVariance;
-    d->x_var = m_pace * qreal(qrand()) / RAND_MAX;
-    d->y_var = m_pace * qreal(qrand()) / RAND_MAX;
-
-    m_wanderData.insert(idx, d);
-    return d;
-}
-
-// TODO: see below
-//void QQuickWanderAffector::reset(int systemIdx)
-//{
-//    if (m_wanderData.contains(systemIdx))
-//        delete m_wanderData[systemIdx];
-//    m_wanderData.remove(systemIdx);
-//}
-
-bool QQuickWanderAffector::affectParticle(QQuickParticleData* data, qreal dt)
-{
-    /*TODO: Add a mode which does basically this - picking a direction, going in it (random speed) and then going back
-    WanderData* d = getData(data->systemIndex);
-    if (m_xVariance != 0.) {
-        if ((d->x_vel > d->x_peak && d->x_var > 0.0) || (d->x_vel < -d->x_peak && d->x_var < 0.0)) {
-            d->x_var = -d->x_var;
-            d->x_peak = m_xVariance + m_xVariance * qreal(qrand()) / RAND_MAX;
-        }
-        d->x_vel += d->x_var * dt;
-    }
-    qreal dx = dt * d->x_vel;
-
-    if (m_yVariance != 0.) {
-        if ((d->y_vel > d->y_peak && d->y_var > 0.0) || (d->y_vel < -d->y_peak && d->y_var < 0.0)) {
-            d->y_var = -d->y_var;
-            d->y_peak = m_yVariance + m_yVariance * qreal(qrand()) / RAND_MAX;
-        }
-        d->y_vel += d->y_var * dt;
-    }
-    qreal dy = dt * d->x_vel;
-
-    //### Should we be amending vel instead?
-    ParticleVertex* p = &(data->pv);
-    p->x += dx;
-
-    p->y += dy;
-    return true;
-    */
-    qreal dx = dt * m_pace * (2 * qreal(qrand())/RAND_MAX - 1);
-    qreal dy = dt * m_pace * (2 * qreal(qrand())/RAND_MAX - 1);
-    qreal newX, newY;
-    switch (m_affectedParameter){
-    case Position:
-        newX = data->curX() + dx;
-        if (m_xVariance > qAbs(newX) )
-            data->x += dx;
-        newY = data->curY() + dy;
-        if (m_yVariance > qAbs(newY) )
-            data->y += dy;
-        break;
-    default:
-    case Velocity:
-        newX = data->curVX() + dx;
-        if (m_xVariance > qAbs(newX) )
-            data->setInstantaneousVX(newX);
-        newY = data->curVY() + dy;
-        if (m_yVariance > qAbs(newY) )
-            data->setInstantaneousVY(newY);
-        break;
-    case Acceleration:
-        newX = data->ax + dx;
-        if (m_xVariance > qAbs(newX) )
-            data->setInstantaneousAX(newX);
-        newY = data->ay + dy;
-        if (m_yVariance > qAbs(newY) )
-            data->setInstantaneousAY(newY);
-        break;
-    }
-    return true;
-}
-QT_END_NAMESPACE