aboutsummaryrefslogtreecommitdiffstats
path: root/src/declarative/particles/qsgpointattractor_p.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/declarative/particles/qsgpointattractor_p.h')
-rw-r--r--src/declarative/particles/qsgpointattractor_p.h168
1 files changed, 168 insertions, 0 deletions
diff --git a/src/declarative/particles/qsgpointattractor_p.h b/src/declarative/particles/qsgpointattractor_p.h
new file mode 100644
index 0000000000..3ca29dfa96
--- /dev/null
+++ b/src/declarative/particles/qsgpointattractor_p.h
@@ -0,0 +1,168 @@
+/****************************************************************************
+**
+** 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef ATTRACTORAFFECTOR_H
+#define ATTRACTORAFFECTOR_H
+#include "qsgparticleaffector_p.h"
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QSGPointAttractorAffector : public QSGParticleAffector
+{
+ Q_OBJECT
+ //Like Gravitational singularity, but linear to distance instead of quadratic
+ //And affects ds/dt, not da/dt
+ Q_PROPERTY(qreal strength READ strength WRITE setStrength NOTIFY strengthChanged)
+ Q_PROPERTY(qreal x READ x WRITE setX NOTIFY xChanged)
+ Q_PROPERTY(qreal y READ y WRITE setY NOTIFY yChanged)
+ Q_PROPERTY(PhysicsAffects physics READ physics WRITE setPhysics NOTIFY physicsChanged)
+ Q_PROPERTY(Proportion proportionalToDistance READ proportionalToDistance WRITE setProportionalToDistance NOTIFY proportionalToDistanceChanged)
+ Q_ENUMS(PhysicsAffects)
+ Q_ENUMS(Proportion)
+
+public:
+ enum Proportion{
+ Linear,
+ Quadratic
+ };
+
+ enum PhysicsAffects {
+ Position,
+ Velocity,
+ Acceleration
+ };
+
+ explicit QSGPointAttractorAffector(QSGItem *parent = 0);
+
+ qreal strength() const
+ {
+ return m_strength;
+ }
+
+ qreal x() const
+ {
+ return m_x;
+ }
+
+ qreal y() const
+ {
+ return m_y;
+ }
+
+ PhysicsAffects physics() const
+ {
+ return m_physics;
+ }
+
+ Proportion proportionalToDistance() const
+ {
+ return m_proportionalToDistance;
+ }
+
+signals:
+
+ void strengthChanged(qreal arg);
+
+ void xChanged(qreal arg);
+
+ void yChanged(qreal arg);
+
+ void physicsChanged(PhysicsAffects arg);
+
+ void proportionalToDistanceChanged(Proportion arg);
+
+public slots:
+void setStrength(qreal arg)
+{
+ if (m_strength != arg) {
+ m_strength = arg;
+ emit strengthChanged(arg);
+ }
+}
+
+void setX(qreal arg)
+{
+ if (m_x != arg) {
+ m_x = arg;
+ emit xChanged(arg);
+ }
+}
+
+void setY(qreal arg)
+{
+ if (m_y != arg) {
+ m_y = arg;
+ emit yChanged(arg);
+ }
+}
+void setPhysics(PhysicsAffects arg)
+{
+ if (m_physics != arg) {
+ m_physics = arg;
+ emit physicsChanged(arg);
+ }
+}
+
+void setProportionalToDistance(Proportion arg)
+{
+ if (m_proportionalToDistance != arg) {
+ m_proportionalToDistance = arg;
+ emit proportionalToDistanceChanged(arg);
+ }
+}
+
+protected:
+ virtual bool affectParticle(QSGParticleData *d, qreal dt);
+private:
+qreal m_strength;
+qreal m_x;
+qreal m_y;
+PhysicsAffects m_physics;
+Proportion m_proportionalToDistance;
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+#endif // ATTRACTORAFFECTOR_H