Initial CustomEmitter and CustomAffector implementation

Currently basic and can't access all properties.

Change-Id: I66efc235112cffcf1a3ca5cc69099a5d09ec7691
Reviewed-on: http://codereview.qt.nokia.com/1950
Reviewed-by: Martin Jones <martin.jones@nokia.com>

1 files changed, 204 insertions, 0 deletions

diff --git a/src/declarative/particles/qsgv8particledata.cpp b/src/declarative/particles/qsgv8particledata.cpp
new file mode 100644
index 0000000000..6b31e3771e
--- /dev/null
+++ b/src/declarative/particles/qsgv8particledata.cpp
@@ -0,0 +1,204 @@
+/****************************************************************************
+**
+** 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 "qsgv8particledata_p.h"
+#include "qsgparticlesystem_p.h"//for QSGParticleData
+#include <QDebug>
+
+QT_BEGIN_NAMESPACE
+
+//### Particle data handles are not locked to within certain scopes like QSGContext2D, but there's no way to reload either...
+class QV8ParticleDataResource : public QV8ObjectResource
+{
+    V8_RESOURCE_TYPE(ParticleDataType)
+public:
+    QV8ParticleDataResource(QV8Engine *e) : QV8ObjectResource(e) {}
+    QSGParticleData* datum;//TODO: Guard needed?
+};
+
+class QV8ParticleDataDeletable : public QV8Engine::Deletable
+{
+public:
+    QV8ParticleDataDeletable(QV8Engine *engine);
+    ~QV8ParticleDataDeletable();
+
+    v8::Persistent<v8::Function> constructor;
+};
+
+static v8::Handle<v8::Value> particleData_discard(const v8::Arguments &args)
+{
+    QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(args.This());
+
+    if (!r || !r->datum)
+        V8THROW_ERROR("Not a valid ParticleData object");
+
+    r->datum->lifeSpan = 0; //Don't kill(), because it could still be in the middle of being created
+    return v8::Undefined();
+}
+
+static v8::Handle<v8::Value> particleData_lifeLeft(const v8::Arguments &args)
+{
+    QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(args.This());
+    if (!r || !r->datum)
+        V8THROW_ERROR("Not a valid ParticleData object");
+
+    return v8::Number::New(r->datum->lifeLeft());
+}
+
+static v8::Handle<v8::Value> particleData_curSize(const v8::Arguments &args)
+{
+    QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(args.This());
+    if (!r || !r->datum)
+        V8THROW_ERROR("Not a valid ParticleData object");
+
+    return v8::Number::New(r->datum->curSize());
+}
+
+#define FLOAT_GETTER_AND_SETTER(VARIABLE) static v8::Handle<v8::Value> particleData_get_ ## VARIABLE (v8::Local<v8::String>, const v8::AccessorInfo &info) \
+{ \
+    QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This()); \
+    if (!r || !r->datum) \
+        V8THROW_ERROR("Not a valid ParticleData object"); \
+\
+    return v8::Number::New(r->datum-> VARIABLE);\
+}\
+\
+static void particleData_set_ ## VARIABLE (v8::Local<v8::String>, v8::Local<v8::Value> value, const v8::AccessorInfo &info)\
+{\
+    QV8ParticleDataResource *r = v8_resource_cast<QV8ParticleDataResource>(info.This());\
+    if (!r || !r->datum)\
+        V8THROW_ERROR_SETTER("Not a valid ParticleData object");\
+\
+    r->datum-> VARIABLE = value->NumberValue();\
+}
+
+#define FLOAT_REGISTER_ACCESSOR(FT, ENGINE, VARIABLE) FT ->PrototypeTemplate()->SetAccessor( v8::String::New( #VARIABLE ), particleData_get_ ## VARIABLE , particleData_set_ ## VARIABLE , v8::External::Wrap(ENGINE))
+
+FLOAT_GETTER_AND_SETTER(x)
+FLOAT_GETTER_AND_SETTER(y)
+FLOAT_GETTER_AND_SETTER(t)
+FLOAT_GETTER_AND_SETTER(lifeSpan)
+FLOAT_GETTER_AND_SETTER(size)
+FLOAT_GETTER_AND_SETTER(endSize)
+FLOAT_GETTER_AND_SETTER(sx)
+FLOAT_GETTER_AND_SETTER(sy)
+FLOAT_GETTER_AND_SETTER(ax)
+FLOAT_GETTER_AND_SETTER(ay)
+FLOAT_GETTER_AND_SETTER(xx)
+FLOAT_GETTER_AND_SETTER(xy)
+FLOAT_GETTER_AND_SETTER(rotation)
+FLOAT_GETTER_AND_SETTER(rotationSpeed)
+FLOAT_GETTER_AND_SETTER(autoRotate)
+FLOAT_GETTER_AND_SETTER(animIdx)
+FLOAT_GETTER_AND_SETTER(frameDuration)
+FLOAT_GETTER_AND_SETTER(frameCount)
+FLOAT_GETTER_AND_SETTER(animT)
+FLOAT_GETTER_AND_SETTER(r)
+
+//TODO: Non-floats (color) and special floats (curX) once basic floats are working well
+
+QV8ParticleDataDeletable::QV8ParticleDataDeletable(QV8Engine *engine)
+{
+    v8::HandleScope handle_scope;
+    v8::Context::Scope scope(engine->context());
+
+    v8::Local<v8::FunctionTemplate> ft = v8::FunctionTemplate::New();
+    ft->InstanceTemplate()->SetHasExternalResource(true);
+    ft->PrototypeTemplate()->Set(v8::String::New("discard"), V8FUNCTION(particleData_discard, engine));
+    ft->PrototypeTemplate()->Set(v8::String::New("lifeLeft"), V8FUNCTION(particleData_lifeLeft, engine));
+    ft->PrototypeTemplate()->Set(v8::String::New("curSize"), V8FUNCTION(particleData_curSize, engine));
+    FLOAT_REGISTER_ACCESSOR(ft, engine, x);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, y);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, t);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, lifeSpan);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, size);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, endSize);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, sx);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, sy);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, ax);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, ay);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, xx);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, xy);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, rotation);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, rotationSpeed);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, autoRotate);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, animIdx);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, frameDuration);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, frameCount);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, animT);
+    FLOAT_REGISTER_ACCESSOR(ft, engine, r);
+
+    constructor = qPersistentNew(ft->GetFunction());
+}
+
+QV8ParticleDataDeletable::~QV8ParticleDataDeletable()
+{
+    qPersistentDispose(constructor);
+}
+
+V8_DEFINE_EXTENSION(QV8ParticleDataDeletable, particleV8Data);
+
+
+QSGV8ParticleData::QSGV8ParticleData(QV8Engine* engine, QSGParticleData* datum)
+{
+    if (!engine || !datum)
+        return;
+    v8::HandleScope handle_scope;
+    v8::Context::Scope scope(engine->context());
+
+    QV8ParticleDataDeletable *d = particleV8Data(engine);
+    m_v8Value = qPersistentNew(d->constructor->NewInstance());
+    QV8ParticleDataResource *r = new QV8ParticleDataResource(engine);
+    r->datum = datum;
+    m_v8Value->SetExternalResource(r);
+}
+
+QSGV8ParticleData::~QSGV8ParticleData()
+{
+    qPersistentDispose(m_v8Value);
+}
+
+QDeclarativeV8Handle QSGV8ParticleData::v8Value()
+{
+    return QDeclarativeV8Handle::fromHandle(m_v8Value);
+}
+
+QT_END_NAMESPACE