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#ifndef LIGHT_H
#define LIGHT_H
#include <QtCore/qobject.h>
#include <QtCore/qscopedpointer.h>
#include <QtGui/qcolor.h>
#include <QtGui/qvector3d.h>
#include <QtGui/qvector4d.h>
class LightPrivate;
QT_BEGIN_NAMESPACE
class QMatrix4x4;
QT_END_NAMESPACE
class Light : public QObject
{
Q_OBJECT
Q_ENUMS(LightType)
Q_PROPERTY(LightType type READ type)
Q_PROPERTY(QVector3D position READ position WRITE setPosition NOTIFY positionChanged)
Q_PROPERTY(QVector3D direction READ direction WRITE setDirection NOTIFY directionChanged)
Q_PROPERTY(QColor ambientColor READ ambientColor WRITE setAmbientColor NOTIFY ambientColorChanged)
Q_PROPERTY(QColor diffuseColor READ diffuseColor WRITE setDiffuseColor NOTIFY diffuseColorChanged)
Q_PROPERTY(QColor specularColor READ specularColor WRITE setSpecularColor NOTIFY specularColorChanged)
Q_PROPERTY(QVector3D spotDirection READ spotDirection WRITE setSpotDirection NOTIFY spotDirectionChanged)
Q_PROPERTY(qreal spotExponent READ spotExponent WRITE setSpotExponent NOTIFY spotExponentChanged)
Q_PROPERTY(qreal spotAngle READ spotAngle WRITE setSpotAngle NOTIFY spotAngleChanged)
Q_PROPERTY(qreal constantAttenuation READ constantAttenuation WRITE setConstantAttenuation NOTIFY constantAttenuationChanged)
Q_PROPERTY(qreal linearAttenuation READ linearAttenuation WRITE setLinearAttenuation NOTIFY linearAttenuationChanged)
Q_PROPERTY(qreal quadraticAttenuation READ quadraticAttenuation WRITE setQuadraticAttenuation NOTIFY quadraticAttenuationChanged)
public:
enum LightType {
Directional,
Positional
};
Light(QObject *parent = 0);
~Light();
Light::LightType type() const;
QVector3D position() const;
void setPosition(const QVector3D& value);
QVector3D direction() const;
void setDirection(const QVector3D& value);
QColor ambientColor() const;
void setAmbientColor(const QColor& value);
QColor diffuseColor() const;
void setDiffuseColor(const QColor& value);
QColor specularColor() const;
void setSpecularColor(const QColor& value);
QVector3D spotDirection() const;
void setSpotDirection(const QVector3D& value);
qreal spotExponent() const;
void setSpotExponent(qreal value);
qreal spotAngle() const;
void setSpotAngle(qreal value);
qreal spotCosAngle() const;
qreal constantAttenuation() const;
void setConstantAttenuation(qreal value);
qreal linearAttenuation() const;
void setLinearAttenuation(qreal value);
qreal quadraticAttenuation() const;
void setQuadraticAttenuation(qreal value);
QVector4D eyePosition(const QMatrix4x4& transform) const;
QVector3D eyeSpotDirection(const QMatrix4x4& transform) const;
Q_SIGNALS:
void positionChanged();
void directionChanged();
void ambientColorChanged();
void diffuseColorChanged();
void specularColorChanged();
void spotDirectionChanged();
void spotExponentChanged();
void spotAngleChanged();
void constantAttenuationChanged();
void linearAttenuationChanged();
void quadraticAttenuationChanged();
void lightChanged();
private:
QScopedPointer<LightPrivate> d_ptr;
Q_DECLARE_PRIVATE(Light)
Q_DISABLE_COPY(Light)
};
#endif