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Diffstat (limited to 'src/imports/particles/deformableparticle.h')
| -rw-r--r-- | src/imports/particles/deformableparticle.h | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/src/imports/particles/deformableparticle.h b/src/imports/particles/deformableparticle.h new file mode 100644 index 0000000000..0de6d8228a --- /dev/null +++ b/src/imports/particles/deformableparticle.h @@ -0,0 +1,235 @@ +/**************************************************************************** +** +** 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 DEFORMABLEPARTICLE_H +#define DEFORMABLEPARTICLE_H +#include "particle.h" +#include "varyingvector.h" + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Declarative) + +class DeformableParticleMaterial; +class QSGGeometryNode; +struct DeformableParticleVertex; + +class DeformableParticle : public ParticleType +{ + Q_OBJECT + //Note that the particle centering can be less accurate with this one + Q_PROPERTY(QUrl image READ image WRITE setImage NOTIFY imageChanged) + + Q_PROPERTY(qreal rotation READ rotation WRITE setRotation NOTIFY rotationChanged) + Q_PROPERTY(qreal rotationVariation READ rotationVariation WRITE setRotationVariation NOTIFY rotationVariationChanged) + Q_PROPERTY(qreal rotationSpeed READ rotationSpeed WRITE setRotationSpeed NOTIFY rotationSpeedChanged) + Q_PROPERTY(qreal rotationSpeedVariation READ rotationSpeedVariation WRITE setRotationSpeedVariation NOTIFY rotationSpeedVariationChanged) + //If true, then will face the direction of motion. Stacks with rotation, e.g. setting rotation + //to 180 will lead to facing away from the direction of motion + Q_PROPERTY(bool autoRotation READ autoRotation WRITE autoRotation NOTIFY autoRotationChanged) + + //###Call i/j? Makes more sense to those with vector calculus experience, and I could even add the cirumflex in QML? + //xVector is the vector from the top-left point to the top-right point, and is multiplied by current size + Q_PROPERTY(VaryingVector* xVector READ xVector WRITE setXVector NOTIFY xVectorChanged) + //yVector is the same, but top-left to bottom-left. The particle is always a parallelogram. + Q_PROPERTY(VaryingVector* yVector READ yVector WRITE setYVector NOTIFY yVectorChanged) + + //Do we want to add the tables? + //Q_PROPERTY(QUrl colorTable READ colortable WRITE setColortable NOTIFY colortableChanged) + //Q_PROPERTY(QUrl sizeTable READ sizetable WRITE setSizetable NOTIFY sizetableChanged) + //Q_PROPERTY(QUrl opacityTable READ opacitytable WRITE setOpacitytable NOTIFY opacitytableChanged) + + //Does it need alpha? For convenience only, as images probably don't have it + //Q_PROPERTY(qreal alpha READ alpha WRITE setAlpha NOTIFY alphaChanged) + //Q_PROPERTY(qreal alphaVariation READ alphaVariation WRITE setAlphaVariation NOTIFY alphaVariationChanged) + +public: + explicit DeformableParticle(QSGItem *parent = 0); + virtual ~DeformableParticle(){} + + virtual void load(ParticleData*); + virtual void reload(ParticleData*); + virtual void setCount(int c); + + QUrl image() const { return m_image; } + void setImage(const QUrl &image); + + qreal rotation() const + { + return m_rotation; + } + + bool autoRotation() const + { + return m_autoRotation; + } + + VaryingVector* xVector() const + { + return m_xVector; + } + + VaryingVector* yVector() const + { + return m_yVector; + } + + qreal rotationVariation() const + { + return m_rotationVariation; + } + + qreal rotationSpeed() const + { + return m_rotationSpeed; + } + + qreal rotationSpeedVariation() const + { + return m_rotationSpeedVariation; + } + +signals: + + void imageChanged(); + void rotationChanged(qreal arg); + + void autoRotationChanged(bool arg); + + void xVectorChanged(VaryingVector* arg); + + void yVectorChanged(VaryingVector* arg); + + void rotationVariationChanged(qreal arg); + + void rotationSpeedChanged(qreal arg); + + void rotationSpeedVariationChanged(qreal arg); + +public slots: +void setRotation(qreal arg) +{ + if (m_rotation != arg) { + m_rotation = arg; + emit rotationChanged(arg); + } +} + +void autoRotation(bool arg) +{ + if (m_autoRotation != arg) { + m_autoRotation = arg; + emit autoRotationChanged(arg); + } +} + +void setXVector(VaryingVector* arg) +{ + if (m_xVector != arg) { + m_xVector = arg; + emit xVectorChanged(arg); + } +} + +void setYVector(VaryingVector* arg) +{ + if (m_yVector != arg) { + m_yVector = arg; + emit yVectorChanged(arg); + } +} + +void setRotationVariation(qreal arg) +{ + if (m_rotationVariation != arg) { + m_rotationVariation = arg; + emit rotationVariationChanged(arg); + } +} + +void setRotationSpeed(qreal arg) +{ + if (m_rotationSpeed != arg) { + m_rotationSpeed = arg; + emit rotationSpeedChanged(arg); + } +} + +void setRotationSpeedVariation(qreal arg) +{ + if (m_rotationSpeedVariation != arg) { + m_rotationSpeedVariation = arg; + emit rotationSpeedVariationChanged(arg); + } +} + +protected: + QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *); + void reset(); + void prepareNextFrame(); + QSGGeometryNode* buildParticleNode(); +private: + void vertexCopy(DeformableParticleVertex &b,const ParticleVertex& a); + bool m_do_reset; + + QUrl m_image; + QSGGeometryNode *m_node; + DeformableParticleMaterial *m_material; + + // derived values... + int m_last_particle; + + qreal m_render_opacity; + // generated vars + qreal m_rotation; + bool m_autoRotation; + VaryingVector* m_xVector; + VaryingVector* m_yVector; + qreal m_rotationVariation; + qreal m_rotationSpeed; + qreal m_rotationSpeedVariation; +}; + +QT_END_NAMESPACE +QT_END_HEADER +#endif // DEFORMABLEPARTICLE_H |