Immense Particles Refactor Part A

Qt.labs.particles 2.0 moved to QtQuick.Particles 2.0. All C++ classes
changed names, some renaming of QML types.

Also adds CustomParticle.

1 files changed, 148 insertions, 0 deletions

diff --git a/src/declarative/particles/qsgparticleemitter.cpp b/src/declarative/particles/qsgparticleemitter.cpp
new file mode 100644
index 0000000000..c04c86cfe5
--- /dev/null
+++ b/src/declarative/particles/qsgparticleemitter.cpp
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qsgparticleemitter_p.h"
+QT_BEGIN_NAMESPACE
+QSGParticleEmitter::QSGParticleEmitter(QSGItem *parent) :
+    QSGItem(parent)
+  , m_particlesPerSecond(10)
+  , m_particleDuration(1000)
+  , m_particleDurationVariation(0)
+  , m_emitting(true)
+  , m_system(0)
+  , m_extruder(0)
+  , m_defaultExtruder(0)
+  , m_speed(&m_nullVector)
+  , m_acceleration(&m_nullVector)
+  , m_particleSize(16)
+  , m_particleEndSize(-1)
+  , m_particleSizeVariation(0)
+  , m_maxParticleCount(-1)
+  , m_burstLeft(0)
+
+{
+    //TODO: Reset speed/acc back to null vector? Or allow null pointer?
+    connect(this, SIGNAL(maxParticleCountChanged(int)),
+            this, SIGNAL(particleCountChanged()));
+    connect(this, SIGNAL(particlesPerSecondChanged(qreal)),
+            this, SIGNAL(particleCountChanged()));
+    connect(this, SIGNAL(particleDurationChanged(int)),
+            this, SIGNAL(particleCountChanged()));
+}
+
+QSGParticleEmitter::~QSGParticleEmitter()
+{
+    if(m_defaultExtruder)
+        delete m_defaultExtruder;
+}
+
+void QSGParticleEmitter::componentComplete()
+{
+    if(!m_system)
+        qWarning() << "Emitter created without a particle system specified";//TODO: useful QML warnings, like line number?
+    QSGItem::componentComplete();
+}
+void QSGParticleEmitter::emitWindow(int timeStamp)
+{
+    Q_UNUSED(timeStamp);
+}
+
+
+void QSGParticleEmitter::setEmitting(bool arg)
+{
+    if (m_emitting != arg) {
+        m_emitting = arg;
+        emit emittingChanged(arg);
+    }
+}
+
+
+QSGParticleExtruder* QSGParticleEmitter::effectiveExtruder()
+{
+    if(m_extruder)
+        return m_extruder;
+    if(!m_defaultExtruder)
+        m_defaultExtruder = new QSGParticleExtruder;
+    return m_defaultExtruder;
+}
+
+void QSGParticleEmitter::pulse(qreal seconds)
+{
+    if(!particleCount())
+        qWarning() << "pulse called on an emitter with a particle count of zero";
+    if(!m_emitting)
+        m_burstLeft = seconds*1000.0;//TODO: Change name to match
+}
+
+void QSGParticleEmitter::burst(int num)
+{
+    if(!particleCount())
+        qWarning() << "burst called on an emitter with a particle count of zero";
+    m_burstQueue << qMakePair(num, QPointF(x(), y()));
+}
+
+void QSGParticleEmitter::setMaxParticleCount(int arg)
+{
+    if (m_maxParticleCount != arg) {
+        if(arg < 0 && m_maxParticleCount >= 0){
+            connect(this, SIGNAL(particlesPerSecondChanged(qreal)),
+                    this, SIGNAL(particleCountChanged()));
+            connect(this, SIGNAL(particleDurationChanged(int)),
+                    this, SIGNAL(particleCountChanged()));
+        }else if(arg >= 0 && m_maxParticleCount < 0){
+            disconnect(this, SIGNAL(particlesPerSecondChanged(qreal)),
+                    this, SIGNAL(particleCountChanged()));
+            disconnect(this, SIGNAL(particleDurationChanged(int)),
+                    this, SIGNAL(particleCountChanged()));
+        }
+        m_maxParticleCount = arg;
+        emit maxParticleCountChanged(arg);
+    }
+}
+
+int QSGParticleEmitter::particleCount() const
+{
+    if(m_maxParticleCount >= 0)
+        return m_maxParticleCount;
+    return m_particlesPerSecond*((m_particleDuration+m_particleDurationVariation)/1000.0);
+}
+
+QT_END_NAMESPACE