Say hello to QtQuick module

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode.h>" to "#include <QtQuick/qsgnode.h>".)

There's a change in qtbase that automatically adds QtQuick to the
module list if QtDeclarative is used. Together with the compatibility
headers, this should help reduce the migration pain for existing
projects.

In theory, simply getting an existing QtDeclarative-based project
to compile and link shouldn't require any changes for now -- but
porting to the new scheme is of course recommended, and will
eventually become mandatory.

Task-number: QTBUG-22889
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change-Id: Ia52be9373172ba2f37e7623231ecb060316c96a7
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>

1 files changed, 211 insertions, 0 deletions

diff --git a/src/quick/particles/qquickcustomaffector.cpp b/src/quick/particles/qquickcustomaffector.cpp
new file mode 100644
index 0000000000..80e2eaf268
--- /dev/null
+++ b/src/quick/particles/qquickcustomaffector.cpp
@@ -0,0 +1,211 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Declarative 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 "qquickcustomaffector_p.h"
+#include <private/qv8engine_p.h>
+#include <private/qdeclarativeengine_p.h>
+#include <QDeclarativeEngine>
+#include <QDebug>
+QT_BEGIN_NAMESPACE
+
+//TODO: Move docs (and inheritence) to real base when docs can propagate. Currently this pretends to be the base class!
+/*!
+    \qmlsignal QtQuick.Particles2::Affector::affectParticles(Array particles, real dt)
+
+    This handler is called when particles are selected to be affected. particles contains
+    an array of particle objects which can be directly manipulated.
+
+    dt is the time since the last time it was affected. Use dt to normalize
+    trajectory manipulations to real time.
+
+    Note that JS is slower to execute, so it is not recommended to use this in
+    high-volume particle systems.
+*/
+
+/*!
+    \qmlproperty StochasticDirection QtQuick.Particles2::Affector::position
+
+    Affected particles will have their position set to this direction,
+    relative to the ParticleSystem. When interpreting directions as points,
+    imagine it as an arrow with the base at the 0,0 of the ParticleSystem and the
+    tip at where the specified position will be.
+*/
+
+/*!
+    \qmlproperty StochasticDirection QtQuick.Particles2::Affector::speed
+
+    Affected particles will have their speed set to this direction.
+*/
+
+
+/*!
+    \qmlproperty StochasticDirection QtQuick.Particles2::Affector::acceleration
+
+    Affected particles will have their acceleration set to this direction.
+*/
+
+
+/*!
+    \qmlproperty bool QtQuick.Particles2::Affector::relative
+
+    Whether the affected particles have their existing position/speed/acceleration added
+    to the new one.
+
+    Default is true.
+*/
+QQuickCustomAffector::QQuickCustomAffector(QQuickItem *parent) :
+    QQuickParticleAffector(parent)
+    , m_position(&m_nullVector)
+    , m_speed(&m_nullVector)
+    , m_acceleration(&m_nullVector)
+    , m_relative(true)
+{
+}
+
+bool QQuickCustomAffector::isAffectConnected()
+{
+    static int idx = QObjectPrivate::get(this)->signalIndex("affectParticles(QDeclarativeV8Handle,qreal)");
+    return QObjectPrivate::get(this)->isSignalConnected(idx);
+}
+
+void QQuickCustomAffector::affectSystem(qreal dt)
+{
+    if (!isAffectConnected()) {
+        QQuickParticleAffector::affectSystem(dt);
+        return;
+    }
+    if (!m_enabled)
+        return;
+    updateOffsets();
+
+    QList<QQuickParticleData*> toAffect;
+    foreach (QQuickParticleGroupData* gd, m_system->groupData)
+        if (activeGroup(m_system->groupData.key(gd)))
+            foreach (QQuickParticleData* d, gd->data)
+                if (shouldAffect(d))
+                    toAffect << d;
+
+    if (toAffect.isEmpty())
+        return;
+
+    if (m_onceOff)
+        dt = 1.0;
+
+    v8::HandleScope handle_scope;
+    v8::Context::Scope scope(QDeclarativeEnginePrivate::getV8Engine(qmlEngine(this))->context());
+    v8::Handle<v8::Array> array = v8::Array::New(toAffect.size());
+    for (int i=0; i<toAffect.size(); i++)
+        array->Set(i, toAffect[i]->v8Value().toHandle());
+
+    if (dt >= simulationCutoff || dt <= simulationDelta) {
+        affectProperties(toAffect, dt);
+        emit affectParticles(QDeclarativeV8Handle::fromHandle(array), dt);
+    } else {
+        int realTime = m_system->timeInt;
+        m_system->timeInt -= dt * 1000.0;
+        while (dt > simulationDelta) {
+            m_system->timeInt += simulationDelta * 1000.0;
+            dt -= simulationDelta;
+            affectProperties(toAffect, simulationDelta);
+            emit affectParticles(QDeclarativeV8Handle::fromHandle(array), simulationDelta);
+        }
+        m_system->timeInt = realTime;
+        if (dt > 0.0) {
+            affectProperties(toAffect, dt);
+            emit affectParticles(QDeclarativeV8Handle::fromHandle(array), dt);
+        }
+    }
+
+    foreach (QQuickParticleData* d, toAffect)
+        if (d->update == 1.0)
+            postAffect(d);
+}
+
+bool QQuickCustomAffector::affectParticle(QQuickParticleData *d, qreal dt)
+{
+    //This does the property based affecting, called by superclass if signal isn't hooked up.
+    bool changed = false;
+    QPointF curPos(d->curX(), d->curY());
+
+    if (m_acceleration != &m_nullVector){
+        QPointF pos = m_acceleration->sample(curPos);
+        if (m_relative) {
+            pos *= dt;
+            pos += QPointF(d->curAX(), d->curAY());
+        }
+        d->setInstantaneousAX(pos.x());
+        d->setInstantaneousAY(pos.y());
+        changed = true;
+    }
+
+    if (m_speed != &m_nullVector){
+        QPointF pos = m_speed->sample(curPos);
+        if (m_relative) {
+            pos *= dt;
+            pos += QPointF(d->curVX(), d->curVY());
+        }
+        d->setInstantaneousVX(pos.x());
+        d->setInstantaneousVY(pos.y());
+        changed = true;
+    }
+
+    if (m_position != &m_nullVector){
+        QPointF pos = m_position->sample(curPos);
+        if (m_relative) {
+            pos *= dt;
+            pos += curPos;
+        }
+        d->setInstantaneousX(pos.x());
+        d->setInstantaneousY(pos.y());
+        changed = true;
+    }
+
+    return changed;
+}
+
+void QQuickCustomAffector::affectProperties(const QList<QQuickParticleData*> particles, qreal dt)
+{
+    foreach (QQuickParticleData* d, particles)
+        if ( affectParticle(d, dt) )
+            d->update = 1.0;
+}
+
+QT_END_NAMESPACE