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    41 

    42 #ifndef CAMERA_H

    43 #define CAMERA_H

    44 

    45 #include <QtCore/qobject.h>

    46 #include <QtCore/qsize.h>

    47 #include <QtGui/qvector3d.h>

    48 #include <QtGui/qmatrix4x4.h>

    49 #include <QtGui/qquaternion.h>

    50 

    51 class CameraPrivate;

    52 class QGLPainter;

    53 

    54 class Camera : public QObject

    55 {

    56     Q_OBJECT

    57     Q_ENUMS(ProjectionType)

    58     Q_PROPERTY(ProjectionType projectionType READ projectionType WRITE setProjectionType NOTIFY projectionChanged)

    59     Q_PROPERTY(qreal fieldOfView READ fieldOfView WRITE setFieldOfView NOTIFY projectionChanged)

    60     Q_PROPERTY(qreal nearPlane READ nearPlane WRITE setNearPlane NOTIFY projectionChanged)

    61     Q_PROPERTY(qreal farPlane READ farPlane WRITE setFarPlane NOTIFY projectionChanged)

    62     Q_PROPERTY(QSizeF viewSize READ viewSize WRITE setViewSize NOTIFY projectionChanged)

    63     Q_PROPERTY(QSizeF minViewSize READ minViewSize WRITE setMinViewSize NOTIFY projectionChanged)

    64     Q_PROPERTY(int screenRotation READ screenRotation WRITE setScreenRotation NOTIFY projectionChanged)

    65     Q_PROPERTY(qreal xEye READ xEye WRITE setXEye NOTIFY viewChanged)

    66     Q_PROPERTY(qreal yEye READ yEye WRITE setYEye NOTIFY viewChanged)

    67     Q_PROPERTY(qreal zEye READ zEye WRITE setZEye NOTIFY viewChanged)

    68     Q_PROPERTY(QVector3D eye READ eye WRITE setEye NOTIFY viewChanged)

    69     Q_PROPERTY(QVector3D upVector READ upVector WRITE setUpVector NOTIFY viewChanged)

    70     Q_PROPERTY(qreal xCentre READ xCentre WRITE setXCentre NOTIFY viewChanged)

    71     Q_PROPERTY(qreal yCentre READ yCentre WRITE setYCentre NOTIFY viewChanged)

    72     Q_PROPERTY(qreal zCentre READ zCentre WRITE setZCentre NOTIFY viewChanged)

    73     Q_PROPERTY(QVector3D center READ center WRITE setCenter NOTIFY viewChanged)

    74     Q_PROPERTY(qreal eyeSeparation READ eyeSeparation WRITE setEyeSeparation NOTIFY viewChanged)

    75     Q_PROPERTY(QVector3D motionAdjustment READ motionAdjustment WRITE setMotionAdjustment DESIGNABLE false NOTIFY viewChanged)

    76     Q_PROPERTY(bool adjustForAspectRatio READ adjustForAspectRatio WRITE setAdjustForAspectRatio NOTIFY viewChanged)

    77 public:

    78     explicit Camera(QObject *parent = 0);

    79     ~Camera();

    80 

    81     enum ProjectionType

    82     {

    83         Perspective,

    84         Orthographic

    85     };

    86 

    87     Camera::ProjectionType projectionType() const;

    88     void setProjectionType(Camera::ProjectionType value);

    89 

    90     qreal fieldOfView() const;

    91     void setFieldOfView(qreal angle);

    92 

    93     qreal nearPlane() const;

    94     void setNearPlane(qreal value);

    95 

    96     qreal farPlane() const;

    97     void setFarPlane(qreal value);

    98 

    99     QSizeF viewSize() const;

   100     void setViewSize(const QSizeF& size);

   101 

   102     QSizeF minViewSize() const;

   103     void setMinViewSize(const QSizeF& size);

   104 

   105     int screenRotation() const;

   106     void setScreenRotation(int angle);

   107 

   108     qreal xEye() const;

   109     void setXEye(qreal value);

   110     qreal yEye() const;

   111     void setYEye(qreal value);

   112     qreal zEye() const;

   113     void setZEye(qreal value);

   114 

   115     QVector3D eye() const;

   116     void setEye(const QVector3D& vertex);

   117 

   118     QVector3D upVector() const;

   119     void setUpVector(const QVector3D& vector);

   120 

   121     qreal xCentre() const;

   122     void setXCentre(qreal value);

   123     qreal yCentre() const;

   124     void setYCentre(qreal value);

   125     qreal zCentre() const;

   126     void setZCentre(qreal value);

   127 

   128     QVector3D center() const;

   129     void setCenter(const QVector3D& vertex);

   130 

   131     qreal eyeSeparation() const;

   132     void setEyeSeparation(qreal value);

   133 

   134     QVector3D motionAdjustment() const;

   135     void setMotionAdjustment(const QVector3D& vector);

   136 

   137     bool adjustForAspectRatio() const;

   138     void setAdjustForAspectRatio(bool value);

   139 

   140     QQuaternion tilt(qreal angle) const;

   141     QQuaternion pan(qreal angle) const;

   142     QQuaternion roll(qreal angle) const;

   143 

   144     void rotateEye(const QQuaternion& q);

   145     void rotateCenter(const QQuaternion& q);

   146 

   147     QVector3D translation(qreal x, qreal y, qreal z) const;

   148 

   149     void translateEye(const QVector3D& vector);

   150     void translateCenter(const QVector3D& vector);

   151 

   152     QMatrix4x4 projectionMatrix(qreal aspectRatio) const;

   153     QMatrix4x4 modelViewMatrix() const;

   154 

   155 Q_SIGNALS:

   156     void projectionChanged();

   157     void viewChanged();

   158 

   159 private:

   160     CameraPrivate *d_ptr;

   161 

   162     CameraPrivate *d_func() const { return d_ptr; }

   163 

   164     Q_DISABLE_COPY(Camera)

   165 };

   166 

   167 #endif